Showing posts with label tungsten alloy counterweight. Show all posts
Showing posts with label tungsten alloy counterweight. Show all posts

Tuesday, July 23, 2013

Tungsten Alloy Counterweight Advantages

Tungsten Alloy Counterweight Advantages

tungsten alloy counterweight
Tungsten alloy counterweight is widely used as counterbalance an opposing mass in a linear or rotary motion system as for its counterweight.

Tungsten alloy is always used for counterbalance an opposing mass in a linear or rotary motion system, allowing movement with lower driving forces.

Tungsten alloy counterweight is designed for aircraft control surfaces, aircraft rotor blades, guidance platforms, and vibration dampening governors. Take vibration dampening governor for instance, tungsten counterweight is used to reduce vibrations in rotating systems such as automobile tires. The vibration is measured without any weights and the heavy spot is determined. It is then placed opposite this heavy spot to balance the load and reduce or eliminate the vibration.

The reasons for adopting tungsten can also be made out of metals such as iron, steel and various alloys. However, tungsten alloy with high density becomes the most popular used material. Take tungsten alloy golf counterweight for instance. When counterweight golf, somebody have the thought of that if they want more distance and control, the conventional wisdom calls for lighter overall weight. But it turned out to be wrong.

Monday, July 22, 2013

Tungsten Ball Pen Bead

Tungsten Ball Pen Bead

tungsten alloy ball
Ballpoint pen or ball-pen is a kind of worldwide popular writing tools in recent decades. It has a simple structure, is easy to carry, provides writing lubrication and it is suitable used as autotype.

Tungsten alloy ball has many advantages, such as high density, small volume, excellent hardness, superior wearing resistance, high ultimate tensile strength, high ductility, high temperature resistance, etc. has a density twice that of steel and are more than 50% heavier than lead, so it is a very suitable material to make into ballpoint bead. These features provide stability when writing, so tungsten alloy ball pen bead will make writing easy and enjoyable. Its wear resistant is the key factor for the manufactures to produce tungsten alloy ball pen bead.

We produce variety of tungsten alloy ball pen bead with diameters of 0.38 - 1.4mm. Our tungsten alloy ball has advanced production techniques and international technical level. Hardness>1400-1500, roughness Ra0.063-0.8 micron, Diameter Tolerance <0.001mm, lineation2000-2500m, wear-out<0.003mm, microspore uniform distribution, writes smoothly, lineation clearing, abrasion proof, long using life , printing ink' wet ability well, carry over more printing ink, lineation clearing ; good handle ,taking bake superabundant printing ink.

All of above superiors make tungsten alloy ball as the best choice for our everyday used pens. Please contact us without hesitation if you have any questions.

Tungsten alloy ball is used in the production of pen bead, tip of ballpoint is generally made of two kinds of material, and one is stainless steel beads and other kind is tungsten alloy ball pen bead. High quality ballpoint tip is made of pure tungsten ball. Ballpoint tip tungsten ball can be used for a long time, and makes writing is also very fluent.
Tungsten alloy ball pen bead is a kind of use the tiny round pearl rotation of the pen, the round pearl by brass, steel or made of tungsten alloy ball, can you write in ink onto the paper will release. Tungsten alloy ball pen bead is different with the reed pen, feather pen, metal tip pen and fountain pen.

How Does Tungsten Alloy Ball Make into Pen Bead?

Tungsten alloy is first made into standard size ball. Then spread out in a groove with the bond and formed into little particles within circular groove, showing tops only. Heavy flat ceiling disk is placed, pressuring little particles from above. In between two dishes into the grinding oil, make these little particles containing diamond powder soaked in gliding mixture. The next step is to turn the footwall, making particles of tungsten alloy ball circular groove constantly tempestuous rolling, in particular of the trench wall, with each other and constant contact, diamond powder keep these particles of the horn side grinding away, they gradually become rounded and light. It takes dozens of hours to finish one tungsten alloy ball pen bead.

Sunday, July 21, 2013

Tungsten Alloy Sphere for Counterweight

Tungsten Alloy Sphere for Counterweight

tungsten alloy sphere
Tungsten alloy sphere counterweights are incorporated into the pitch control system of many propeller designs as a fail-safe device to prevent over speeding. What's more, tungsten heavy alloy is incorporated into the rotating flywheels of gyroscopic controls for the storage of kinetic energy. Tungsten alloy counterweights are used for adjusting the center of gravity of the triangle and the frequency of oscillation of the laser beams. Bucking bars made of tungsten heavy alloy are ideal for vibration-damping applications with high density.

Usually, space for the counterweight is limited, so the need of heavy but small objects is great. Tungsten alloy sphere, with the density of 16.5/ cm 3 to 18.5/m3 about 50 percent higher than lead and much higher than steel, is ideal for counterweight. Tungsten alloy counterweight as sphere can prolong the life of itself because of its wear resistance and round shape. In addition, lead is toxic while tungsten alloy sphere is environmentally friendly.

Tungsten Alloy Sphere Application

Due to its special properties, tungsten alloy sphere use in the counterweight, fishing weight, counterweights, etc. Chinatungsten has more than 20 years of experience in manufacturing tungsten alloy counterweight as sphere. We have tungsten alloy sphere to many different overseas customers and manufactured various parts of tungsten alloy counterweight always meeting specific designs requirement. Tungsten alloy sphere are usually supplied in bulk quantities.

Advantages of Tungsten Alloy Counterweight as Sphere

Tungsten alloy sphere provides a safer alternative to lead, and their higher density enables them to hold their shape better, even under extreme conditions. While uranium offers comparable density, its volatile nature and the special licensing requirements needed for radioactive materials make working with it difficult. Chinatungsten offers a variety of high-density alloys, available as ROTF (Rough, Oversized to Finish) material, bars, tungsten alloy sphere, tungsten alloy counterweight, tungsten alloy plates or rods. We also have extensive machining capabilities, allowing us to provide crankshaft weights in standard sizes or custom products finished to your exact specifications.

Thursday, July 18, 2013

Tungsten Alloy for Shaped Charge Liners

Tungsten Alloy for Shaped Charge Liners

tungsten alloy shaped charge liner
What are Shaped Charge Liners?

A shaped charge liner is an explosive charge shaped to focus the effect of the explosive's energy. Various types are used to cut and form metal, initiate nuclear weapons, and penetrate armor. A typical modern lined shaped charge can penetrate armor steel to a depth of seven or more times the diameter of the charge's cone (cone diameters, CD), though greater depths of 10 CD and above are now feasible.

The shape most commonly used for the liner is a cone, with an internal apex angle of 40 to 90 degrees. Different apex angles yield different distributions of jet mass and velocity. Small apex angles can result in jet bifurcation, or even in the failure of the jet to form at all; this is attributed to the collapse velocity being above a certain threshold, normally slightly higher than the liner material's bulk sound speed. Other widely used shapes include hemispheres, tulips, trumpets, ellipses, and bi-conics; the various shapes yield jets with different velocity and mass distributions.

Liners have been made from many materials, including glass and various metals. The deepest penetrations are achieved with a dense, ductile metal, and a very common choice has been copper. For some modern anti-armor weapons, molybdenum and pseudo-alloys of tungsten filler and copper binder (9:1 thus density is ~18t/m3) have been adopted. Just about every common metallic element has been tried, including aluminum, tungsten, tantalum, depleted uranium, lead, tin, cadmium, cobalt, magnesium, titanium, zinc, zirconium, molybdenum, and beryllium, nickel, silver, and even gold and platinum. The selection of the material depends on the target to be penetrated; for example, aluminum has been found advantageous for concrete targets.

Why Choose Tungsten Alloy as Shaped Charge Liners?

For the deepest penetrations, pure metals yield the best results, because they display the greatest ductility, hence postponing the breakup of the stretching jet into particles. In charges for oil-well completion, however, tungsten alloy shaped charge liner is essential that a solid slug or "carrot" not be formed, since it would plug the hole just penetrated and interfere with the influx of oil. In the petroleum industry, therefore, liners are generally fabricated by powder metallurgy, often of pseudo-alloys, which if tungsten alloy shaped charge liners un-sintered, yield jets that are composed mainly of dispersed fine metal particles.

During World War II, shaped charge liners were made of copper or steel, though other materials were tried or researched. The precision of the charge's construction and shaped charge liners detonation mode were both inferior to modern warheads. This lower precision caused the jet to curve and to break up at an earlier time and hence at a shorter distance. The resulting dispersion decreased the penetration depth for a given cone diameter and also shortened the optimum standoff distance. Since the charges were less effective at larger standoffs, side and turret skirts fitted to some German tanks to protect against Russian anti-tank rifle fire were fortuitously found to give the jet room to disperse and hence reduce its penetrating ability. Now most shaped charge liners are made of tungsten alloy.

The use of shaped charge liners today may increase the penetration of some warheads. Due to constraints in the length of the projectile/missile, the built in stand-off on many warheads is not the optimum distance. The skirting effectively increases the distance between the amour and the target, providing the warhead with a more optimum standoff and greater penetration if the optimum stand-off is not drastically exceeded. Tungsten alloy shaped charge liners should not be confused with cage amour that is used to damage the fusing system of RPG-7 projectiles. The amour works by deforming the inner and outer orgies and shorting the firing circuit between the rocket's piezoelectric nose probe and rear fuse assembly. If the nose probe strikes the amour, the warhead will function as normal.

The spacing between the shaped charge liners and shaped charge liners target is critical, as there is an optimum standoff distance to achieve the deepest penetration. At short standoffs, the jet does not have room to stretch out, and at long standoffs, shaped charge liners eventually breaks into particles, which then tend to drift off the shaped charge liners of axis and to tumble, so that the successive particles tend to widen rather than deepen the hole. At very long standoffs, velocity is lost to air drag, degrading penetration further.

Wednesday, July 17, 2013

Tungsten for Gyroscope Rotors

Tungsten for Gyroscope Rotors

tungsten alloy gyroscope rotor
What Is Tungsten Alloy Gyroscope Rotors?

A tungsten alloy gyroscope rotor is a device for measuring or maintaining orientation, based on the principles of angular momentum. A mechanical they are essentially a spinning wheel or disk whose axle is free to take any orientation. This orientation changes much less in response to a given external torque than it would without the large angular momentum associated with the gyroscope's high rate of spin. Since external torque is minimized by mounting the device in gimbals, its orientation remains nearly fixed, regardless of any motion of the platform on which it is mounted. Solid state gyroscopes also exist.

Applications of Tungsten Alloy Gyroscopes Rotors

Applications of tungsten alloy gyroscopes rotors include navigation (INS) when magnetic compasses do not work (as in the Hubble telescope) or are not precise enough (as in ICBMs) or for the stabilization of flying vehicles like Radio-controlled helicopters or UAVs. Due to higher precision, tungsten alloy gyroscope rotors are also used to maintain direction in tunnel mining.

Gyroscope rotors exhibit a number of behaviors including precession and notations. Tungsten heavy alloy gyroscope rotors can be used to construct gyrocompasses which complement or replace magnetic compasses (in ships, aircraft and spacecraft, vehicles in general), to assist in stability (bicycle, Hubble Space Telescope, ships, vehicles in general) or be used as part of an inertial guidance system. It effects are used in toys like tops, boomerangs, yo-yos, and Powerball's. Many other rotating devices, such as flywheels, behave gyroscopically although the gyroscopic effect is not used.

Tungsten alloy gyroscope rotors in operation have freedom of movement in all three axes. The tungsten alloy gyroscope rotors will maintain its spin axis direction regardless of the orientation of the outer frame. With its perfect properties, tungsten alloy is the perfect material for gyroscope rotors.

Tuesday, July 16, 2013

Tungsten Construction Parts in Gas Lasers

Tungsten Construction Parts in Gas Lasers

tungsten alloy gas lasers
What Is Gas Laser?

A gas laser is a laser in which an electric current is discharged through a gas to produce light. The first gas laser, the Helium-neon, was co-invented by Iranian physicist Ali Javan and American physicist William R. Bennett, Jr. in 1960.Tungsten is the best material to make tungsten alloy gas lasers components. Tungsten alloy gas lasers have so many advantages as follows:

Advantages of Tungsten Alloy Gas Lasers

High volume of active gas lasers material
Active material is relatively inexpensive of gas lasers
Almost impossible to damage the active material in using gas lasers
Heat can be removed quickly from the cavity when using gas lasers
Applications of Tungsten Alloy Gas Laser

Gas laser is mainly used in making holograms.

In laser printing gas laser is used as a source for writing on the photosensitive material.

Gas lasers are used in reading the Bar Code which is imprinted on the product.

Gas lasers related products offered by us are high quality: we can provide gas lasers components as your requirements. Tungsten alloy is a suitable material in making the construction parts in gas lasers. We can provide tungsten alloy products related to gas lasers.

Monday, July 15, 2013

Tungsten Ignition Tubes for Rocket Engine

Tungsten Ignition Tubes for Rocket Engine

tungsten ignition tubes
What is Rocket Engine Ignition Tubes?

A rocket engine tungsten ignition tubes or simply "rocket" is a jet engine that uses only propellant mass for forming its high speed propulsive jet. Rocket engines tungsten ignition tubes are reaction engines and obtain thrust in accordance with Newton's third law. Since tungsten ignition tubes need no external material to form their jet ignition tubes, rocket engines ignition tubes can be used for spacecraft propulsion as well as terrestrial uses, such as missiles. Most rocket engines ignition tubes are internal combustion engines, although non combusting forms also exist.

Rocket engines produce thrust by the expulsion of a high-speed fluid exhaust. Ignition tubes fluid is nearly always a gas which is created by high pressure (10-200 bar) combustion of solid or liquid propellants, consisting of fuel and oxidizer components, within a combustion chamber.

Tungsten Alloy Application for Rocket Engine Ignition Tubes

Because of its superior wear resistance, high melting point, low vapor point and strange hardness, tungsten alloy is increasingly used to manufacture ignition tubes of rocket engines. We can provide ignition tubes for rocket engine as your requirements. Ignition tubes offered by us are qualified.

In rockets, temperatures employed are very often far higher than the melting point of the nozzle and combustion chamber materials. Ignition tubes in rocket engine can overcome this problem; two exceptions are graphite and tungsten (~1200 K for copper). It is important that tungsten ignition tubes be prevented from combusting, melting or vaporizing to the point of failure. Properly manufactured and corrosion shielded tungsten alloy parts will increase safety of any rocket usage.

Sunday, July 14, 2013

Tungsten Alloy for Plasma Technique

Tungsten Alloy for Plasma Technique

tungsten alloy plasma technique
What Is Tungsten Alloy Plasma Technique?

Applications which might gain more importance in the future are construction material for the tungsten alloy plasma technique in magneto hydrodynamic power generation (W and W-Cu) and target plates in fusion reactors (W, W-La2O3).

Recent tungsten alloy plasma technique and theoretical and numerical studies show that tungsten may be the best, if not the only, material to withstand the extraordinary operating conditions in a nuclear fusion reactor diverter. The diverter, being that part of the vacuum vessel where the tungsten alloy plasma technique particles interact with the first wall, and where a large fraction of the fusion heat is removed, consists of water-cooled copper heat-exchanger element covered with a plasma facing armor. The tungsten alloy plasma technique particles (electrons, protons, and α-particles) are directed by the magnetic field toward the diverter target plates, where they are neutralized and pumped. The convective heat flux reaches 20 MW.m-2 and the attendant surface temperature more than 3000℃. Therefore, a suitable armor material must have a high thermal conductivity (in order to transfer high heat fluxes), low thermal expansion coefficient and low Young's modulus (in order to keep thermal stresses low), and a high melting point and low sputtering yield (in order to keep erosion low). Although tungsten does not have as high a thermal conductivity and as low a Young's modulus as carbon-carbon composite materials, which are foreseen for the sections of the diverter with the highest heat flux, many experts believe that, in the long run, reasonable lifetimes will only be achieved by tungsten diverter plates, which have the lowest erosion rates of all materials in sections of the diverter with relatively low plasma temperature but high particle density.

Low-pressure Tungsten Alloy Plasma Technique

For the technical realization of low-pressure plasma processes, one requires equipment with the following components:

Vacuum system (pump, vessel)
Energy supply
Gas supply
Measurement and control components for the reproducible adjustment of the process parameter

Due to the necessity of a vacuum system in most cases, batch operation method is the easiest solution. The processes can be flexibly and complexly configured, in order to change the mode of action of the tungsten alloy plasma technique through variation of the process parameters (pressure, gas flow, gas composition, power) and can attain different effects in one process step. So that, i.e. without great expenditure a secondary cleaning can be carried out and immediately thereafter a corrosion protection layer becomes deposited, without having to aerate in between.

Further Advantages of Low-pressure Tungsten Alloy Plasma Technique:

Ability of fissure-penetration by the plasma: even most complex sample geometries up to porous substrates can be treated
No thermal or mechanical strain of the substrates
High measure on environmental compatibility and operational safety

Chinatungsten Online has diverse facilities available for the various concerted questions (bulk material, batch goods, rail goods, size of the reactor up to 3m 3, MHz- and GHz stimulation); as well as many years of experience in the development of plasma processes and the conception of applicative plasma devices up to pilot graduations.

Within the bounds of its function as service provider in technology transfer, we offer tungsten alloy plasma technique resources for the processing of the above-mentioned industrial questions up to series production. Our service comprises consultation, process development, sampling and industrial installation through pilot terotechnology.

Tungsten Alloy Plasma Technique Treatment – Endless Possibilities

Tungsten alloy plasma technique can be used in many different cases whenever you would like to better adhere materials together or to change a surface property to suit your needs. With this trend-setting technology it is possible to modify virtually any surface. tungsten alloy plasma technique offers several versatile applications, for example:

Cleaning surfaces of any residues, oils, or contamination
Activation of various materials before gluing, painting, etc.
Etching and partial removal of surfaces
Coating of parts with several possible types of layers (PTFE-like, protective barriers, hydrophobic, hydrophilic, friction-reducing, etc.)
Plasma technology is establishing itself in all areas of industry, and new applications are constantly evolving.

Tungsten Alloy Plasma Technique - Convincing Advantages

Compared to other methods, like flame treating or using chemicals to treat a surface, tungsten alloy plasma technique exhibits many important advantages:

Many surface properties can be obtained exclusively with this procedure
Can be used in online production or operated independently
Environmentally friendly process
Regardless of geometry you are able to treat powder, small parts, discs, fleece, textiles, tubing, bottles, circuit boards, etc.
Fabricated parts will not be mechanically changed
Heating of the parts is minimal
Operating costs are very low
Extremely safe to operate
Process is extremely energy efficient

Thursday, July 11, 2013

Tungsten Alloy for Turbo Engines

Tungsten Alloy for Turbo Engines

tungsten alloy turbo engines
What are Turbo Engines?

Tungsten alloy turbo engines are the heat engine which is conditioned by their maximum intake temperature, and turbo engines are limited by the behavior of the constituent materials of the articles that are most exposed to heat and constraints.

Why Choose Tungsten Alloy Turbo Engines?

Concerns for environmental protection have led designers of aviation tungsten heavy alloy turbo engine to search for means to reduce the proportion of pollutants in the exhaust gases of the engines. It is known that the principal problems in the matter of pollution of aviation tungsten alloy turbo engines are, on the one hand, the emission of carbon monoxide, of hydrocarbons, and of various unburnt residues during operation on the ground and, on the other hand, the emission of nitrogen oxides and of particles during take-off and during cruising at altitude. Therefore, tungsten alloy turbo engines are increasingly accepted by public.

Tungsten heavy alloy turbo engine is generally of optimized rating for take-off or near take-off operation. This signifies that, in the primary zone of the combustion chamber, a fraction of the air flow of the compressor is introduced so that, with the injected fuel, the fuel-air mixture in this zone would be essentially stoichiometric in turbo engines. Under these conditions, due to the levels of temperature and high pressures, as complete as possible a combustion is obtained, combustion yields greater than 0.99 are attained, the speeds of the chemical reaction being optimum for these stoichimoetric mixtures.

The first two times can be considered negligible at high ratings because of the pressures which are attained, but it is not so at low ratings. In fact, in order to increase the speed of the vaporization of the fuel, it must be transformed into fine droplets, which, in normal operation, is easily realized by the conventional mechanical atomizing injector, but the performance which is obtained in the lower ratings is poor. This is due to the fact that, if the fuel is well divided into droplets, these are poorly mixed with air in the primary zone and local zones would appear which have a richness which is too high. In the end, it would be necessary that each droplet would have around it the quantity of gas necessary for its vaporization and for its combustion, i.e., a quantity of gas which results in a stoichiometric mixture with the oxygen molecules after complete vaporization. In order to accomplish this, systems such as aerodynamic injection have been proposed. Aerodynamic type injectors generally comprise whirling, or swirled vanes through which the air from the compressor is introduced, which serves to atomize the fuel. An air/fuel pre-mixture is thus obtained. All of these solutions, which allow an improvement in the combustion yield have, however, a maximum efficiency only for values sufficient for the pressures and temperatures of the air at the chamber inlet. All of these factors are advantageous for a reduction of the reaction times and could lead to a reduction of the length of the combustion chamber for tungsten heavy alloy turbo engine and thus to a limitation of the dwell time of the gases in the latter. In the whole working environment, material of heat-resistance is required, therefore, tungsten heavy alloy for turbo engine is widely used for that.

A first objective of tungsten heavy alloy turbo engine is to provide a novel solution to the problem of low operating combustion for a chamber which includes aerodynamic type or pre-atomization injectors, which are mounted in the base of the chamber. In fact, in the case of a conventional chamber of tungsten heavy alloy turbo engine, which is arranged to provide a stoichiometric mixture at take-off, about one-third of the air flow necessary for the combustion of tungsten alloy turbo engine is introduced in the injection system and two-thirds by the primary orifices.

Wednesday, July 10, 2013

Tungsten Paperweight

Tungsten Paperweight

tungsten paperweights
What are Tungsten Paperweights?

Paperweights are decorative objects, designed to hold sheets of paper on a surface to prevent wind from blowing them away.

Tungsten paperweights have a long history in China. It can be traced back to the birth of paper.

In ancient China, tungsten paperweights were necessary equipment in sanctum. For one of the reason was Chinese paint art and handwriting always use brush and larger paper. Popular size of paper may 300mm x 500mm, and the large size paper may be larger than 2000mm x 1000mm. Tungsten paperweights are now important addition to "wen fang si bao" (the four treasures of the study, i.e. writing brush, ink stick, ink slab, paper), were very important for everyone who can read and write.

In the West, first documented appearance of paperweight can be traced to the Exhibition of Austrian Industry held in Vienna in 1845. Tungsten paperweights of Pietro Bigaglia of Venice were displayed at this exhibition. Knowledge of their existence was reportedly soon brought to the attention of the Saint-Louis glass factory in France.

Modern Paperweights

Tungsten paperweights are composed of metal alloy, tungsten heavy alloy. The alloy allows for maximum hardness and rigidity without sacrificing tensile strength. Tungsten paperweights are polished with diamond tools, and it takes a brilliant high polish and resists scratching longer than any metal ever offered to the public. Roughly ten times harder than 18k gold and four times harder than titanium, tungsten paperweights will never bend or lose their shape. Paperweight made of tungsten can be last for a long time.

It is also possible to have "custom" tungsten paperweights made to your specifications.

Tungsten Paperweights never worn, never rust, high-density, high-performance paperweight!

Applications of Tungsten Paperweights

* In your office and your clients' office
* The paperweights can be a great gift to your friends, your lover and your business partners
* Paperweights can also be as your company's gift with your logo sent to your VIP clients, if you are a manager of a Insurance company, a bank and any big company, we believe the tungsten paperweights should be the best choice for you, also we believe your gift will make the biggest surprise to the right person who gets it.

Tungsten Alloy Cube for Clock

Tungsten Alloy Cube for Clock

tungsten alloy cube
What Is Tungsten Alloy Vibrator for Clock/ Mobile Phone?

When clock vibrates, there is an eccentric motion, which is caused by eccentric motor with vibrating components occurs. As the center of the gravity is eccentric, and is not in the rotor of motor, then the clock vibrates. In this case, machinery component with good properties of wear resistant and high specific gravity is required. Tungsten alloy cube is the best material to make tungsten alloy vibrator used in clock/watch. We can provide all kinds of tungsten alloy cube as your requirements, tungsten alloy cube is one of our leading products.

Application for Tungsten Alloy Cube in Vibrator

Tungsten alloy cube is excellent material for making tungsten alloy vibrator. Since the density of tungsten alloy cube is so high and the maximum density should be 18.6g/cm3. Tungsten alloy cube is popular where small component with relatively large mass is needed, for example: the tungsten alloy vibrator used in clock/watch, etc.

Tungsten alloy vibrators in clock/watch are one of our leading products. Compared with other materials, tungsten alloy has the advantages of accurate weight, and non-magnetism. In particular, since a motorized weight usually produces the tungsten alloy vibrators, lighter-weight phones may have weaker vibrating mechanisms.

Tuesday, July 9, 2013

Tungsten Alloy Mobile Vibrator

Tungsten Alloy Mobile Vibrator

tungsten alloy mobile vibrator
What Is Tungsten Alloy Mobile Vibrator

When mobile phone vibrates, there is an eccentric motion, which is caused by eccentric motor with vibrating components. As the center of the gravity is eccentric, and is not in the rotor of motor, then the mobile phone vibrates. In this case, component with good properties of wear resistant and high specific gravity is required.

Application for Tungsten Alloy Mobile Phone Vibrator

Tungsten alloy is an excellent material for manufacturing this component. Since the density of tungsten alloys is so high (18.6g/cm3). It is popular for material to manufacture heavy but small component such as: tungsten alloy mobile phone vibration, the vibrating parts of clock, etc.

Sunday, June 30, 2013

Tungsten Alloy Extrusion Die

Tungsten Alloy Extrusion Die

tungsten alloy extrusion die
Tungsten alloy extrusion die is useful for processing both non-ferrous metals and alloy steels, the dies being made of a predominant amount of molybdenum or tungsten, the remainder being zirconium. It is usually used in the multiple extrusion process that is specially designed to prevent delaminating or cracking of the rods during extrusion.

Appliances for Tungsten Alloy Extrusion Die and Die Casting Components

Hard steel wire is generally made by forcing solid metal through a hole, called a die, under such intense pressure that it is extruded like pasta. Can you imagine the incredible forces that must be acting on the holes? In some cases diamond or sapphire (nearly as hard) dies are used. Chinatungsten offers excursion dies made of a tungsten alloy, because of its high strength at very high temperatures.

Because of its extraordinary prosperities of high heat resistance, good hardness, excellent plasticity ability, tungsten heavy alloy (WHA) is very suitable material for tolls such as extrusion dies, die casting components, etc., especially when it is employed in extrusion die of copper related alloy, the manufacture of aluminum, zinc and brass castings. It is made from a sintered material consisting of Mo and/or W containing 2-60% by volume of high melting point non-metallic components which are free from oxygen (except possibly in impurity amounts).

Major Advantages of Tungsten Alloy Extrusion Die and Die Casting Components
High thermal stability
Minimal extruded metal pick-up

Friday, June 28, 2013

Tungsten Alloy for Oil Logging

Tungsten Alloy for Oil Logging

tungsten alloy oil logging counterweight
What Is Tungsten Alloy Oil Logging Counterweight?

Usually, when it comes to environmental or geotechnical studies about groundwater, mineral, oil and gas exploitation, it is necessary to utilize tungsten alloy well logging counterweight to perform well logging, and analyze stratum situation exactly when drilling boreholes.

Appliance for Tungsten Alloy Oil Logging Counterweight

Because oil logging needs to enter the earth as deeper as possible to get the characterization of wells, high-performance logging facility is required, and tungsten alloy well logging counterweight should be heavy and firmer enough, to balance out much more upward resistance and enhance the downward impulse force. In fact, tungsten alloy works as counterweight for the whole part.

Tungsten heavy alloy (WHA) is an excellent casing material for oil logging counterweight down-hole logging of oil wells. Casings must be sufficiently heavy to readily sink through materials such as barite mud and strong enough to withstand the hydrostatic pressure of this harsh environment. Most designs of tungsten alloy oil logging counterweight are highly machined for sensor and window positioning. Mechanical properties are very significant to the survivability of tungsten alloy oil logging counterweight rather large components.

Because of high density as 18.5g/cm3 max, hardness as 36 HRC max, high wear-resistance, high impact resistance and excellent durability, tungsten heavy alloy (WHA) is very suitable material for oil logging counterweight down-hole logging of underground water, oil and gas, etc. Special mechanical property is overweight large component in tungsten alloy oil logging counterweight.

Tungsten heavy alloy related to petroleum industry we can offer various tungsten heavy alloy counterweight, such as tungsten alloy oil logging counterweight, also we would like to design the drawing or manufacture concrete products according to customer's special requirements. Tungsten alloy oil logging counterweight we offered are in pressed & sintered blanks large enough to yield the desired component or machined components to customer's specifications.

Tungsten Alloy Counterweight for Sailboats

Tungsten Alloy Counterweight for Sailboats

tungsten alloy sailboat counterweight
What Is Tungsten Alloy Ballast for Sailboats?

Ballast is used in sailboats to provide momentum to resist the lateral forces on the sail. Insufficiently ballasted boats will tend to tip, or heel, excessively in high winds. Too much heel may result in the boat capsizing. When sailing vessels carried cargo, it was at times necessary to sail to a port with no cargo. In order to do this enough ballast of little or no value would be loaded to keep the vessel upright. Tungsten alloy sailboat counterweight would then be discarded when the cargo was loaded.

On larger modern vessels, the keel is made of or filled with a high density material, such as lead. However, lead is not environmentally friendly and toxic. Because high density and its non-toxic, tungsten heavy alloy is increasingly adopted in counterweighs for sailboat. By placing the weight as low as possible (often in a large bulb at the bottom of the keel) the maximum righting moment can be extracted from the given mass. Traditional forms of ballast carried inside the hull were stones or sand.

Special properties for tungsten alloy weights

Here are some main advantages of tungsten alloy sailboat counterweights:
- High density- up to 18.5 g/cm3. 
- Up to 65% denser than Lead. 
- Up to 130% denser than Steel. 
- Mechanical properties to suit either dynamic or static locations. 
- Weakly Ferro magnetic. 
- Non-magnetic, if specifically required. 
- Safe and environmentally friendly alternative to Lead. 
- Non-Toxic. 
- Corrosion resistant. 
- Easily machined. 
- Easily mechanically joined, brazed or shrunk fit to other materials. 
- Equivalents to most commercial specifications available.

Tungsten Alloy Sailboat Counterweights

Due to the special properties of tungsten heavy alloy, tungsten heavy alloy block is usually used in the counterweight of yacht, sailboats, submarines, etc.

Chinatungsten has vast experience in supply of tungsten alloy sailboat counterweights to different overseas yachts' manufacturers, always meeting even the most specific designs requirement. 

Brick-shape tungsten alloy sailboat counterweights are the typically supplied in bulk quantities as raw material. Our client designs and machines the bricks into the integrated counterweight parts with tungsten alloy pins.

Wednesday, June 26, 2013

Tungsten Alloy Ballast for Vehicle

Tungsten Alloy Ballast for Vehicle

tungsten alloy vehicle ballast
Drivers consistently report they can sense differences in how a car handles on the track if the weight on a given wheel varies only by a couple of pounds. Fine tuning a car to a given track is a very cumbersome and time consuming ordeal with conventional lead plate weights. Tungsten alloy vehicle ballast as block shape offers up to 50% more weight in a given volume, with the added advantages of direct attachment via threaded holes or thru-bolting and the freedom from deformation. The high density of tungsten heavy alloys (WHAs) permit weights to be placed in the lower half of NASCAR weight adjustment tubes, effectively lowering the overall center of gravity for improved handling. Chinatungsten's tungsten alloy vehicle ballast is a specialized line of racing weights for these applications.

Reasons for Choosing Tungsten Alloy Vehicle Ballast

Tungsten alloy vehicle ballast, also called tungsten alloy vehicle weight, is now becoming the most popular material for balancing race cars:

Highest density
Adding tungsten alloy vehicle weight nto the framework of a racing car helps you to balance the car during the race. Better balance contributes to the better control over the car's movement and helps to optimize the overall performance.

High tensile strength and good creep resistance
Tungsten alloy vehicle weight has high tensile strength and good creep resistance with a high mass/size ratio. Tungsten alloy vehicle weight is the ideal material to work within a restricted space. The high density of tungsten alloy vehicle weight gives enhanced sensitivity by increasing the control of load distribution.

Easily Machined
Tungsten alloy vehicle weight is easily machined and allows designers greater flexibility in deciding on the final shape of components. It also offers several other advantages over conventional balance materials e.g. lead or steel. 

Chinatungsten Online's tungsten alloy can be used in:

Automotive

High environmental compatibility, lower fuel consumption, and improved electronics for more comfort and safety in modern vehicles set high demands for applied materials. Tungsten and molybdenum products from Chinatungsten made from high performance materials advance to new levels of achievement and guarantee maximum efficiency.

Increasing service temperatures and compact, space-saving designs are the demands of the engine generations of the future. High performance tungsten and molybdenum products are best suited for applications in engines because of their mechanical, chemical and physical properties. Components made of tungsten heavy alloy with densities up to 18,5 g/cm3 are well-suited for highly effective crankshaft and racing weights, flywheel balance weights in standard production cars, in racing, shipping or the industrial engine sector.

Motor Sports

The minimum weight requirements of motor sport formulae are often met with ease as more exotic materials give designers the ability to create lighter and stronger components in the search for greater performance.

Adding Chinatungsten Online's tungsten alloy vehicle weight helps to provide competitive advantage by giving the ability to add ballast within confined spaces in exactly the correct place to both trim the weight distribution and lower the centre of gravity of a competition car and still meet the minimum weight requirements.

A lower centre of gravity can also be achieved by adding tungsten skid plates, which also protects the lower parts of the chassis, especially important in F1 racing car, where a ride-height monitoring plank is used.

Engines

Due to its very high density, Chinatungsten Online's tungsten alloy vehicle ballast is an ideal material for suppressing vibration in static or moving components. Applications for Chinatungsten Online's tungsten heavy alloy include:

Wheel weights
Lead weights often fall off automobile wheels, leading to lead contamination of the environment. 
There is a thriving market in lead-free wheel weights. European and Japanese automobile manufacturers have already switched to lead-free wheel weights and U.S. automobile manufacturers are currently in the process of making the switch. Asian auto manufacturers now primarily use tungsten alloy flywheel weights. Tungsten alloy flywheel weights are also sed widely in Europe, and US auto manufacturers are using tungsten alloy weights for automobiles destined for export to Europe.

Tungsten heavy alloy is becoming more and more popular for counterweight, balance weights for flywheels, ballast for F1 formula car, racing weights, dynamic balancing, etc. Tungsten alloy is the best material for tungsten alloy for the balancing weight, and has been widely known and applied.

Tungsten for Airborne Antenna Bases

Tungsten for Airborne Antenna Bases

airborne antenna bases
What Is Airborne Antenna Bases?

Recently, there have been many proposed applications for clusters of small Unmanned Aerial Vehicles (UAVs). Some of these applications, such as air antenna bases, Synthetic Aperture Radar and video surveillance, can generate large quantities of data which must be transmitted to a base station quickly. UAV size limitations often prevent the use of large, highly directive antennas in this link with the airborne antenna bases station. This paper proposes the solution of forming an array from several UAVs and applies antenna array theory to analyze its performance. An example is given where tungsten compensation is used to achieve high directivity even in the presence of element position errors. Tungsten alloy is the best material to make airborne antenna bases.

Friday, June 21, 2013

Tungsten Alloy Helicopter Shoes

Tungsten Alloy Helicopter Shoes

What Are Tungsten Alloy Helicopter Shoes?

tungsten alloy helicopter shoes
Tungsten alloy helicopter shoes are one of the components in the plane which is used on the ground parking, slide, landing taxiing used to support the weight of the plane crash, absorb energy. Tungsten heavy alloy helicopter shoes can absorb and consume the hit energy when the plane landed. Tungsten heavy alloy helicopter shoes have four functions:

Firstly, under gravity when the plane on the ground parking, sliding, taking off, running smooth and landing.
Secondly, bearing, consuming and absorbing the energy and turbulence when the plane landed in ground.
Thirdly, braking while the plane sliding.
Lastly, Steering airplanes while the plane sliding.

Tungsten Alloy Helicopter Shoes

As is known to us all, tungsten alloy has so many advantages such as high density, high melting point, small volume, excellent hardness, superior wearing resistance, high ultimate tensile strength, high ductility, high temperature resistance, good corrosion resistance, excellent thermal stability and thermal shock resistance, etc. Tungsten alloy is the perfect material to make helicopter because of the high melting point and superior wearing resistance. When the plane landing and sliding, the speed is very fast, so the friction is so big and it can produce a lot of heat, tungsten alloy helicopter shoes can resistant this problems and keep the plane land safely. Good corrosion resistance is another advantage for tungsten alloy to make helicopter shoes, when the helicopter emergency landing, it does have the choice of the ground, the product cannot be corrosion when the environment is bad.

1. A Tungsten Heavy Alloy Helicopter Shoes Comprising: 
a) A base plate; 
b) A mosaic of smooth-surfaced blocks of wear-resistant material disposed on said base plate to form a substantially continuous smooth wear surface; 
c) Retaining rails surrounding said mosaic on said plate, said rails being tapered to provide an edgeless transition from said wear surface to the surface of said base plate outwardly of said mosaic.

2. The tungsten heavy alloy helicopter shoes of claim 1, in which said base plate is curved. 

3. The tungsten heavy alloy helicopter shoes of claim 2, in which said base plate is curved in a plurality of directions. 

4. The tungsten heavy alloy helicopter shoes of claim 1, in which said blocks are brazed to said base plate, to said retaining rails, and to each other. 

5. The tungsten heavy alloy helicopter shoes of claim 1, in which said wear resistant material contains substantially 89% tungsten alloy and 11% Cobalt.

Tungsten Bucking Bar

Tungsten Bucking Bar

tungsten bucking bar
Tungsten bucking bar are placed behind work surfaces to provide a backing member in applying impact fasteners and including intermitted tool head and handle parts with a low-recoil impact-absorbing spacer provided there between to take shock loads in compression and shear. A rivet gun is a type of tool used to drive rivets; nearly all rivet guns are pneumatically powered.

Bucking bars are used on the backside of a metal rivet gun to counter the force of the hammering and to create bucktail. Bucking bar also can be used to absorb the force of rivet guns, reducing the vibration of bucking.

Tungsten bucking bar used to form buck tails on rivet guns. And bucking bars come in many different shapes and sizes, and they are normally made from alloy steel similar to tool steel. The particular shape to be used depends upon the location and accessibility of the rivet gun to be driven. 

The size and weight of tungsten bucking bars depend on the size and alloy of the rivet gun to be driven. Under certain circumstances, and for specific rivet installations, specially designed bucking bars can be manufactured.

At Chinatungsten Online, bucking bars are normally made from tungsten heavy alloy. All edges are debarred and working surfaces are polished for convenient and safe use. This helps to prevent marring of formed buck tails. Please notice that never hold bucking bars in a vise unless the vise jaws are equipped with protective covers to prevent marring of tungsten bucking bar.

Why Choose Tungsten Heavy Alloy?

Enjoy easier, better riveting with less fatigue. Tungsten bucking bar offer the maximum density available. These bucking bars are more than twice as heavy as an identical bar made of steel. The small size and high density makes these bars versatile, able to fit in small areas. All bucking bars have a full radius on all edges for safety and ease of handling.

Tungsten bucking bars are resulting in a bucking bar of the same weight but half the size. Bucking bars are used in rivet setting to upset the shank of the rivet gun. Tungsten bucking bars reduce the recoil when reflecting the impact back to the rivet gun shaft. Rivet guns vary in size and shape.

Higher density reduces vibration and kick back while riveting. Take a cue from the pros and use what they use. We carry a full line of standard tungsten bucking bars used in rivet guns or we can custom build bucking bars according to your specifications. All tungsten bucking bars have smooth faces and rounded edges and corners for ease and safety in handling.

Wednesday, June 19, 2013

Tungsten Counterweight for Aerospace

Tungsten Counterweight for Aerospace

tungsten alloy aerospace counterweight
Probably the most well known application for tungsten alloy is the aerospace industry, where weights and counterweights are often required to be housed in restricted areas. Tungsten alloy aerospace counterweight and tungsten alloy aerospace balance are the most important parts in helicopter. With significant reductions in size possible, this in turn, leads to greater control of weight distribution. Tungsten alloy is the best choice to produce tungsten alloy aerospace counterweight and tungsten alloy aerospace balance.

Tungsten Alloy Aerospace Counterweights

Tungsten alloy aerospace counterweight in the dynamic components of aircraft engines and propeller systems are highly undesirable. Vibration, caused by mass imbalance of externally rotating components, can be reduced or eliminated by using mass trim weights. Additionally, tungsten alloy aerospace counterweights are incorporated into the pitch control systems of many propeller designs as a failsafe mechanism. During flight the propellers are kept at the correct angle by hydraulic pressure.

Counterbalances to optimize performance. Tungsten alloy aerospace balance offers designers several advantages over conventional balance materials such as lead or steel. The higher density of the alloys permits smaller components to be used, reducing overall system weight. Unlike lead, which can exhibit creep at ambient temperatures, these alloys are stable and so may be used in mechanically stressed positions without the need for additional fabrication and encasement. The tungsten alloy aerospace counterweight and tungsten alloy aerospace balance offered by us are qualified.

Tungsten Alloy Aerospace Balance

Other aerospace applications like tungsten alloy aerospace balance include mass balances in satellites and helicopter rotor blades and in gyroscopic controls for missiles and avionics. In contrast to their vibration damping applications, these materials are also utilized, in the cockpit, to exaggerate the required vibrations in stall-warning shakers for control columns. Similarly, the advent of fly-by-wire controls has introduced small quantities of tungsten alloys into flight control joysticks, in order to increase stick inertia and therefore reintroduce some of the "feel" that is present in traditional controls, which use mechanical linkages to the elevators and ailerons.

In addition to their incorporation as tungsten alloy aerospace counterweights and tungsten alloy aerospace balances, tungsten alloy contribute to aircraft fabrication and repair operations. To deaden the vibration caused by rivet guns, bucking bars ("riveting dollies" or "hand anvils") are used to absorb the force. The vibration can result in damage to nerves, muscles and bones in operators' hands causing Carpel Tunnel Syndrome (Vibration White Finger). Many aerospace companies now reduce the bad effects by using tungsten alloy aerospace counterweight and tungsten alloy aerospace balance.

Ever more rapid long-distance transport of passengers and goods with a concurrent reduction of fuel consumption and emission of pollutants is one of the main demands of today's aerospace industry. Tungsten alloy aerospace counterweight and tungsten alloy aerospace balance made of Tungsten Alloy high performance materials are key elements for future generations of civil supersonic and wide-bodied airplanes, hypersonic aircraft and high performance planes. High-temperature materials facilitate pioneering innovations in the area of propulsion systems, such as aircraft turbines and rocket propulsion, as well as hot outer skin structures of hypersonic aircraft.

Increasing the gas inlet temperature in gas turbines significantly contributes to more energy efficiency in aerospace. Materials have to meet high demands such as hot-gas corrosion resistance, low thermal expansion, high creep resistance and superior fatigue properties.