Copper Tungsten Products of Chinatungsten

We use the best tungsten copper which is much stronger due to it being composed of an even sturdier alloy.
This sintered tungsten copper alloy may be used in heavy spot and projection welding projects. Our tungsten copper is manufactured metallurgically and contains 70-90% tungsten. The structure is smooth, very hard and has high elasticity. The most important reasons for Brouwer Metaal to work with tungsten copper is its unrivalled versatility. We use tungsten copper in our products, because it has a very high melting point and this results in a very stable and safe product. Additionally, tungsten copper is a very good conductor this allows it to be used in electrodes that you use in resistance welding.
The products designed by us, Brouwer Metaal, are guaranteed to have been tested thoroughly in relation to all international guidelines. This ensures a high quality product allows you to do your resistance welding with the greatest precision. The construction of this alloy permits a degree of reliability and makes sure that as customer you do not need to hesitate anymore whether the welding will break or not.
For more information on how to obtain this product you can consult our webpage or phone us at the number mentioned on our homepage.
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Tungsten Copper Rod Chinatungsten Provide

We are very proud that we have offered more 1000 clients with thousands types expected tungsten products successfully from the year 1997. If you have any demand of tungsten & molybdenum, please let's know it without any hesitation, we'll try our best to assistant your complete the design, produce, machining, grounding & delivery ASAP. Also we promise you: We have neither minimum order, nor small customer, and we are not offering only our qualified products but also the designing, solution and the best service, prompt delivery at the most competitive prices for our motto is: Our Business Is Nothing But Your Success.
Chinatungsten Online are provide different sizes tungsten copper rods as following sheet:

Diameter	D2, D3,D4,D5,D6,D7,D8,D10,D12,D14,D15,D16,D18,D20,D21,D22,D25,D30,D35,D40,D45
Length	100, 200, 300

Tungsten Copper for Low Voltage Electrode

Tungsten Copper for Low Voltage Electrode Contact Application
Low Voltage Electrode Contact Application-1
Automotive electrical contacts
Car electrical contacts are typically pure tungsten rod cutting, brazed tungsten the surface oxide layer, if long-term placement will produce automotive electrical failure phenomenon tungsten copper alloy rod to ensure that the contact has good electrical conductivity, resistance to arc erosion and oxidation-resistant performance.
Low Voltage Electrode Contact Application-2
Medical equipment with discharge board
The human crusher, pulse ray generator equipment in high-voltage, high-current discharge electrodes, tungsten copper alloy with copper one way of making, not only to ensure good electrical conductivity of the electrode, arc erosion resistance, and solve the electrodes connectivity issues.
Low Voltage Electrode Contact Application-3
The Overall Electrical Contacts
The arc current 380V contactors, switches, etc. used finger brazing copper and contacts connections occurred often in the process of using high temperatures lead to melting of the brazing layer to produce U-turn phenomenon. Tungsten copper produced by the method of the overall sintered integrally arc contact means to solve the above problems, and to reduce the production processes.
Low Voltage Electrode Contact Application-4
Other applications
Tungsten-copper alloy has a high melting point, high electrical conductivity and good ablation resistance; it can be used in many electrical fields.

Copper Tungsten Tubing for EDM

Copper tungsten tubing can be used to EDM hole drill in all material types. Copper tungsten, because of it’s molecular composition tends to last longer during hole burning compared mostly to Brass.
One unique characteristic of copper tungsten is that it is ideal when small hole drilling through very hard materials such as Carbide and Tungsten. This is because it has a slower and more steady burn rate that will measure up stronger. When EDM holeburning through a depth to width ratio of greater than 100 to 1 this also tends to be ideal because a more controlled hole burn will leave a more accurate and straighter hole.
The Copper tungsten tubing that we supply is 99.995% pure.
Single Hole Electrode Tubes vs. Multi-Channel Electrode Tubes
Another variable which determines the ultimate success of the electrode properly EDM Hole Burning through the material or work piece is if the Brass Electrode or Copper Electrode tube has a “single hole” or a “multi channeled hole” running directly through the ID or (Internal Diameter) of the electrode.
Basically put; in order for an electrode to perform the way it’s supposed to, it depends on the type of hole going through the center of the electrode. This type of hole has a few purposes. One purpose is to direct water or coolant through the center of the electrode. This keeps the entire length of the Brass or Copper Tube from overheating and burning up. If the electrode heats up too much it can become “soft” and warp thus not creating a straight line or a consistent and accurate EDM Hole.
The main reason that determines whether an EDM Electrode tube would have a “single hole” or a “multi-channel” / “coreless” hole is that when a hole is EDM Machined into a part it could be a “thru hole” or a “blind hole”. Blind holes are not drilled complete to the other side so a “slug” or a piece of material is still left untouched at the bottom of the hole.

Tungsten Copper for Instant High Temperature Material

Tungsten copper alloy, the copper content of the alloys in common for 10% to 50%.System alloy powder metallurgy method has a good electrical and thermal conductivity, preferably of high-temperature strength and certain plasticity. At very high temperatures, such as more than 3000 ℃, a copper alloy is liquefied evaporation, a large number of absorbing heat, reducing the temperature of the material surface. Therefore, such material is also known as metal sweating. Wider use of tungsten copper alloy, is mainly used to manufacture high voltage electrical arc ablation resistance switch contacts and the rocket nozzle throat insert, rudder and other high temperature components, is also used as the electrode electrically processing, high temperature molds as well as other requirements of thermal conductivity properties and high-temperature use of the occasion. First tungsten copper selection of fine tungsten, copper powder refined by leading soaked sintering process, can withstand nearly 2,000 high temperature and high stress, has a high melting point, high hardness, resistance to burning and good anti-adhesion, electrical erosion surface of the product finish high, very high precision, low loss. Tungsten and copper is widely used as a high-pressure, super-hydraulic switch and circuit breaker contacts, protection ring for electric upsetting anvil block material conductive Tsui, automatic submerged arc welding, plasma cutting machine nozzle, welding machines, welding machines welding head seam welding wheel the gas sealing Mao electrode and point spark electrodes, spot welding, touch welding materials.
The advantages of tungsten copper alloy combined of copper and tungsten, which include high-strength, high density, high temperature resistance, arc ablation, conductive electric performance, processing performance. High quality tungsten powder and oxygen-free copper powder, application isocratic pressing, to ensure the purity of the product, and accurate ratio, organized crime, performance arc breaking performance, good electrical conductivity, thermal conductivity thermal expansion. Tungsten copper material is a preferred material to meet the above requirements.

Applications of Tungsten Copper Composites

Copper tungsten alloys are used where the combination of high heat resistance, high electrical and/or thermal conductivity, and low thermal expansion are needed. Some of the applications are in electric resistance welding, as electrical contacts, and as heat sinks. As contact material the alloy is resistant to erosion by electric arc. Tungsten copper alloys are also used in electrodes for electrical discharge machining and electrochemical machining.
The CuW75 tungsten copper alloy, with 75% of tungsten, is widely used in chip carriers, substrates, flanges and frames for power semiconductor devices. The high thermal conductivity of copper together with the low thermal expansion of tungsten allows thermal expansion matching to silicon, gallium arsenide, and some ceramics.
Copper Tungsten alloy with 70-90% of tungsten is used in liners of some specialty shaped charges. The penetration is enhanced by factor 1.3 against copper for homogeneous steel target, as both the density and the break-up time are increased. Tungsten powder based shaped charge liners are especially suitable for oil well completion. Other ductile metals can be used as binder in place of copper as well. Graphite can be added as lubricant to the powder.
The manufacturing process of Tungsten copper alloy is to press the refractory (tungsten or tungsten carbide), sinter the pressed compact at a high temperature, and infiltrate with copper. All of this is done under very closely controlled conditions. The mechanical and physical properties of Tungsten copper alloy vary with composition. The thermal and electrical conductivity increase with the amount of copper, while the hardness, strength, and resistance to mechanical wear increase with the amount of tungsten or tungsten carbide. The application determines the material choice.

Tungsten Copper Rod for EDM

Our tungsten copper rod for EDM die and mould application has below advantage:
-High electrical conductivity bring very good erosion rate. Improve productivity.
-High hardness maintains long life time.
-High density characters present the lowest corner wear.
-Dia. 1mm rod bend demo shows our super infiltration process control capability.
Our tungsten copper rod for EDM die and mould application has below advantage:
-High electrical conductivity bring very good erosion rate. Improve productivity.
-High hardness maintains long life time.
-High density characters present the lowest corner wear.
-Dia. 1mm rod bend demo shows our super infiltration process control capability.

Applications for Copper Tungsten Bar

Because of the high electrical conductivity and low consumption, Copper tungsten bars are widely used to make Grid siderod, Lead, Support, and Electrode for the Gas discharge lamp.
1. Resistance welding electrode
It integrates such features of tungsten and copper as high temperature resistance, electrical arc ablation resistance, high proportion, good electrical and heat conductivity, being easy to cut and transpiration cooling. It also owns such advantages of tungsten as high hardness, melting point and adherence resistance. It is often used for projection welding and butt-welding electrode with wear and high temperature resistance.
2. Electric spark electrode
It is used for the electrode of mould made from tungsten steel and high-temperature and ultra hard alloy. The common electrode has high consumption and low rate. The high electrical ablation rate, low consumption ratio, precise electrode size and quality processing performance of Copper tungsten can ensure that the precision of the work piece is greatly enhanced.
3. High-voltage discharge tube electrode
When the high-voltage vacuum discharge tube is working, the temperature of contact material will rise to thousands degree centigrade within several tenths seconds. High ablation resistance, high toughness, good electrical and heat conductivity of Copper tungsten provide necessary conditions to stable operation of the discharge tube.
4. Electrical seal material
It owns not only the low expansion of tungsten and high heat conductivity of copper. Its expansion index and heat conductivity can also be changed through changing the content of the materials, which provides convenience to the using of the material. We can supply various specifications and the Copper tungsten alloys with different tungsten proportions.

Copper tungsten electrical contacts

The high Electrical & thermal conductivity of copper are combined with the arc-resistant & non-welding properties of tungsten or their carbides to form an extensive series of compositions each designed to give the best performance for your particular application. These materials are used for such heavy duty contact applications as:
*Circuit breakers, air & oil immersed
*Arcing tips or arc runners
*Make & break contacts
*Heavy duty conductors, relays & switches.

Copper tungsten product standard
The high electrical and thermal conductivity of tungsten copper alloy allows a cool, effective transfer of power, while the excellent arc-resistance properties of tungsten copper minimize arc erosion and transfer problems. These characteristics can be varied by composition more silver or copper yields higher electrical and thermal conductivity, while a higher refractory metal content results in superior arc erosion properties. We offer a variety of composites to meet your demands. Regardless of the environment (oil-filled devices, air and gas circuit breakers, contactors, high voltage switch gear) or the application (arcing contacts and plates, arc runners, current carrying members and blade facings), you won't be disappointed in electrical contacts made from our copper tungsten composites.

Copper Tungsten Alloy Rod

1, Copper tungsten rod, Copper tungsten round bar
2, Diameter: 1.5-100.0mm
3, Length: 50-1000mm
4, Density: 12.60-17.05 g/cm3
5, Composition: W 55-90%, Cu 10-45%
6, Surface: Sintering surface, Forged surface, Ground surface
Copper tungsten Alloy (WCu) is the composite of tungsten and copper which own excellent performance of tungsten and copper. It is used widely in such industries as engine, electric power, electron, metallurgy, spaceflight and aviation.
The manufacturing process is as follows: press the refractory metal, sinter the pressed compact at a high temperature, and infiltrate it with copper. All this is done under very closely controlled conditions. The result is a relatively hard material with superior arc and wear resistance, high physical Properties: at elevated temperatures, and good electrical and thermal conductivity.

Copper Tungsten Sheet

Copper tungsten sheet introduction1, Main grades: CuW50, CuW55, CuW60, CuW65, CuW70, CuW85
2, Length: 5mm-200mm
3, Width: 5mm-200mm
4, Thickness: 0.1mm-5.0mm
5, Semi-finished or finished (Ni/Au plated) products available
Copper tungsten sheet is a composite of tungsten and copper. The coefficient of thermal expansion (CTE) of the composite can be designed by controlling the content of tungsten, matching that of the materials, such as Ceramics (Al2O3, BeO), Semiconductors (Si), Metals (Kovar), etc. The products are widely application in the fields such as radio frequency, microwave, high power diode packaging and optical communication system.
It owns not only the low expansion of tungsten and high heat conductivity of copper. Its expansion index and heat conductivity can also be changed through changing the content of the materials, which provides convenience to the using of the material. We can supply various specifications and the Copper tungsten sheet with different tungsten proportions.

Application of tungsten copper

Tungsten copper alloy combines the advantages of tungsten and copper, which the high melting point of tungsten (tungsten melting point of 3410 ℃, coppermelting point 1080 ℃), Highdensity (density of tungsten 19.34g/cm, copper density 8.89/cm3); excellent thermal conductivity properties of copper, tungsten copper alloy (composition generally ranges WCu7 ~ WCu50) uniform micro structure,high temperature, high strength, resistance to arc erosion, density; conductivity,moderate thermal conductivity, high temperature materials are widely used in military, high-voltage switch with electrical alloy, EDM electrodes,microelectronics materials, parts and components are widely used as aerospace, aviation, electronic, electric power, metallurgy, machinery, sports equipment and other industries.

Chromium Copper Alloy

Overview
Chromium copper alloys are high copper alloys, containing 0.6 to 1.2% Cr. The chromium copper alloys are used for their high strength, corrosion resistance and electrical conductivity. The chromium copper alloys are age hardenable, which, in this case, means that a change in properties occurs at elevated temperature due to the precipitation of chromium out of the solid solution. The strength of fully aged chromium copper is nearly twice that of pure copper and its conductivity remains high at 85% IACS, or 85% that of pure copper. These high strength alloys retain their strength at elevated temperatures. The corrosion resistance of chromium copper alloys is better than that of pure copper because chromium improves the chemical properties of the protective oxide film. Chromium copper has excellent cold formability and good hot workability. It is used in applications such as resistance welding electrodes, seam welding wheels, switch gears, cable connectors, circuit breaker parts, molds, spot welding tips, and electrical and thermal conductors that require strength. Chromium copper alloys are designated as UNS C18050 through C18600, the cast alloys are C81400 through C81540.

Tungsten Copper Alloy Heat Sink Advantages

High thermal conductivity
Excellent hermeticity
Excellent flatness, surface finish, and size control
Semi-finished or finished (Ni/Au plated) products available
It is a composite of tungsten and copper. By controlling the content of tungsten, we can design its coefficient of thermal expansion (CTE), matching that of the materials, such as Ceramics (Al2O3, BeO), Semiconductors (Si), Kovar, etc.
Our tungsten copper composites to be used extensively in thermal mounting plates, chip carriers, flanges, and frames for high-powered electronic devices. 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 Alloy Heat Sink

A heat sink uses its extended surfaces to increase the surface area in contact with the cooling fluid, the air for example. The term is not meant literally, as a heat sink does not have a "magical ability to absorb heat like a sponge and send it off to a parallel universe". Heat transfer theory helps explain practical aspects of how heat sinks work, and can also help to clear up common misconceptions and design mistakes. Approach air velocity, choice of material, fin (or other protrusion) design and surface treatment are some of the design factors which influence the thermal resistance, i.e. thermal performance, of a heat sink. One engineering application of heat sinks is in the thermal management of electronics, often computer CPU or graphics processors. For these, heat sink attachment methods and thermal interface materials also influence the eventual junction or die temperature of the processor(s). Theoretical, experimental and numerical methods can be used to determine a heat sink's thermal performance.
Tungsten Copper high performance composites are fabricated from carefully controlled porous tungsten that is vacuum infiltrated with molten copper. This results in a WCu composite that has high conductivity and a matched low thermal expansion for heat sinks.
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.
The combination of tungsten & copper materials results in thermal expansion characteristics similar to those of silicone carbide, aluminum oxide, and beryllium oxide, used as chips and substrates. Because of tungsten copper's thermal conductivity and expansion characteristics, Tungsten copper alloy works well in densely packed circuits.

Tungsten Carbide Copper Rod

Copper tungsten alloys are commonly used in EDM electrodes and other electrical and electrical/thermal applications. They are also used for facing and inserts for flash and butt welding dies, projection welding electrodes, seam welding bearing inserts and facing for electro-forming and electro-forging dies.
Although they are somewhat more difficult to machine, tungsten carbide copper materials provide high mechanical properties and excellent resistance to erosion. They are commonly used in oil devices to protect the contact from oxidation.

Tungsten Carbide Copper Alloy

Tungsten Carbide Copper is one of numerous metal alloys sold by American Elements under the tradename AE Alloys?. Generally immediately available in most volumes, AE Alloys? are available as bar, Ingot, ribbon, wire, shot, sheet, and foil. Ultra high purity and high purity forms also include metal powder, submicron powder and nanoscale, targets for thin film deposition, and pellets for chemical vapor deposition (CVD) and physical vapor deposition (PVD) applications.American Elements produces to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia)and follows applicable ASTM testing standards.Typical and custom packaging is available. Primary applications include bearing assembly, ballast, casting, step soldering, and radiation shielding.

Tungsten Copper Sheet

Chinatungst Online copper tungsten sheet is a composite of tungsten and copper. The coefficient of thermal expansion (CTE) of the composite can be designed by controlling the content of tungsten, matching that of the materials, such as Ceramics (Al2O3, BeO), Semiconductors (Si), Metals (Kovar), etc. The products are widely application in the fields such as radio frequency, microwave, high power diode packaging and optical communication system.
It owns not only the low expansion of tungsten and high heat conductivity of copper. Its expansion index and heat conductivity can also be changed through changing the content of the materials, which provides convenience to the using of the material. We can supply various specifications and the Copper tungsten sheet with different tungsten proportions.