Tungsten Copper Spring Contacts

Tungsten copper spring contacts is suitable for using the circuit up to the rated voltage 660V AC 50HZ or 60HZ, rated current up to 95A, for making, breaking, frequently starting and controlling the AC motor. Combined with the auxiliary contact block, timer delay and machine interlocking device etc. it becomes the delay contacts, mechanical interlocking contacts, star-delta starter. It is combined into the electromagnetic starter.

Tungsten Copper Spring Contacts Picture

On account of their excellent properties, tungsten copper spring contacts materials have found a wide field of applications. Tungsten copper spring contacts are used successfully with high tungsten content as burn-off contacts for large low-voltage circuit breakers and with lower contents as contacts carrying a steady line current for molded case circuit breakers and in various protective circuit breakers. These tungsten copper spring contacts are also used in high current contractors where resistance to contact welding and arc erosion are required. 

The copper and tungsten composite group combines the high thermal and electrical conductivity of copper with the high erosion resistance of the high melting tungsten. These materials are also characterized by their high strength and their resistance to welding or sticking. They are principally made by infiltration and the nominal copper content varies from 10-50%. By increasing the amount of tungsten, the hardness and welding is reduced. This composite group of alloys is specially preferred for use in air.

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Tungsten Copper Rod

Tungsten copper rod is a kind of round rod. The grade of tungsten copper rod include WD10070、WD10075 and WD10080. the choice of tungsten copper content are depend of the application of tungsten copper rod, but if you do not know the detail application of the material, you can choice the content according to GB/T8320-2003.

Tungsten Copper Rod Picture

Tungsten copper rod is a kind of composite material, which is manufactured by high-purity tungsten powder and high conductivity copper powder with the production process of isostatic pressing, sintering temperature and copper infiltrated.

Tungsten copper rod properties include breaking arc performance, good thermal conductivity, low thermal expansion, in high temperature will not soften, high strength, high density and high hardness.

Tungsten copper rod is mainly used in resistance welding electrodes, EDM electrodes, high-voltage discharge electrodes and electronic packaging materials.

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Tungsten Copper Alloy Brick

Tungsten copper alloy brick, is also called tungsten copper plate (tungsten-copper, Cu-W, or W-Cu) is a pseudo alloy of copper and tungsten. As copper and tungsten are not mutually soluble, the tungsten copper alloy brick material is composed of distinct particles of one metal dispersed in a matrix of the other one. The microstructure of tungsten copper brick is therefore rather a metal matrix composite than a true alloy.

Tungsten Copper Alloy Brick Picture

Tungsten copper alloy brick combines the properties of both metals, resulting in a material that is heat-resistant, ablation-resistant, highly thermally and electrically conductive, and easy to machine.Tungsten copper brick offered by us is high quality.

Parts are made from the Cu-W alloy by pressing the tungsten particles into a desired shape, sintering the compacted part, and then infiltrating with molten copper. Sheets, rods and bars of the alloy are available as well.

Chinatungsten Online provides tungsten copper alloy brick composites to be used extensively in thermal mounting plates, chip carriers, flanges, and frames for high-powered electronic devices. With the thermal advantages of tungsten copper brick with the very low expansion characteristics of tungsten, tungsten copper brick has properties similar to those of silicone carbide, aluminum oxide, and beryllium oxide. The thermal conductivity and low expansion also make tungsten copper brick an excellent choice even for extremely dense circuits. Tungsten copper alloy brick can be widely used in many fields, we can provide different sizes of tungsten copper brick according to your requirements.

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Tungsten Copper Heat Base

Chinatungsten's tungsten copper heat base is to be used extensively in thermal mounting plates, chip carriers, flanges, and frames for high-powered electronic devices and also used in radio frequency, microwave, high power diode packaging and optical communication system.

With the thermal advantages of copper with the very low expansion characteristics of tungsten, tungsten copper has properties similar to those of silicone carbide, aluminum oxide, and beryllium oxide. The thermal conductivity and low expansion also make tungsten copper alloy an excellent choice even for extremely dense circuits.

Tungsten Copper Heat Base Picture

The CuW75 tungsten copper alloy is used extensively in thermal mounting plates, chip carriers, flanges, and frames for high-power electronic devices. As a tungsten copper material, it's a composite, so both the thermal advantages of copper and the very low expansion characteristics of tungsten can be utilized.

Copper tungsten is one of the most popular refractory metal based heat base materials offered today. At China Tungsten we can offer all kinds of tungsten copper heat base as the customer's requirements.

Tungsten copper heat base also called tungsten copper heat sink. Tungsten copper heat base is a heat base which is made of tungsten copper alloy. A heat base is a term for a component or assembly that transfers heat generated within a solid material to a fluid medium, such as air or a liquid. Examples of heat bases are the heat exchangers used in refrigeration and air conditioning systems and the radiator (also a heat exchanger) in a car. Heat bases also help to cool electronic and optoelectronic devices, such as higher-power lasers and light emitting diodes (LEDs).

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Tungsten Copper Electrode Application

Tungsten copper electrode is an electrical conductor used to make contact with a nonmetallic part of a circuit. And the composition of tungsten copper electrode is tungsten and copper.

Tungsten copper electrode owns the sprier properties of tungsten and copper, with which of high conductivity, good  thermal conductivity, thermal expansion of small, high-temperature non-softening, high-intensity, high-density and high hardness.
With these sprier properties, tungsten copper electrode are usual used in the following area:
1.Resistance welding
2.EDM field
3.High-voltage vacuum discharge tube
4.Electronic Packaging Materials

Tungsten Copper Electrode Picture

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Tungsten Copper Bar Application

Tungsten copper bar owns the properties of high electrical conductivity and low consumption, the bars are widely used to make grid side rod, electrode, welding and so on.

The following is the detail information for the tungsten copper bar application:

1. Resistance Welding Electrode

2. Electric Spark Electrode

3. High-voltage Discharge Tube Electrode

4. Electrical Seal Material

Tungsten Copper Bar Picture

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Tungsten Copper Contacts Spares

Chinatungsten are able to provide kinds of tungsten copper contacts, and the tungsten copper contacts spares is a kind of tungsten copper contacts. It is used as electrode.

Tungsten Copper Contact Spares Picture

Tungsten copper contacts spares have good resistance to arc erosion, mechanical wear, contact welding and good conductivity. They are usually selected for oil, gas, air or vacuum, devices. The contact surfaces will oxidize when switched in air. These press-sinter-infiltrate materials should only be considered for arcing surfaces in air when used as arcing tips, arc plates and arc runners. When switching with moderate contact arcing, the tungsten copper with a high copper content may give the lowest erosion. As arcing severity increases, the tungsten copper with the higher refractory content withstand arc erosion better. Tungsten copper contacts spares are also used as arcing edges of selector switchblades in transformer tap changers.

Tungsten copper contacts spares materials made of WCu are also characterized by the properties of high arc erosion resistance, good electrical conductivity, excellent strength, very good machinability, good thermal conductivity and low thermal expansion.

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