Copper Tungsten Electrode

What's electrodes?
An electrode is an electrical conductor used to make contact with a nonmetallic part of a circuit. The word was coined by the scientist Michael Faraday from the Greek words electron and hoods, a way.
Copper tungsten is a good use of high-purity tungsten metal powder and high purity characteristics of the plasticity of copper powder, the advantages of high conductivity, the static pressure molding, high temperature sintering, melting refined copper from the process of composite materials. Arc off a good performance, good thermal conductivity, thermal expansion of small, high-temperature non-softening, high-intensity, high-density, high hardness.

Resistance welding electrode
A combination of the advantages of tungsten and copper, high temperature resistance, electric arc ablation, high intensity, than the major, conductive, thermal conductivity, and ease of machining, and it has features such as cold sweating, as with tungsten high hardness, high melting point, anti-adhesion characteristics, often used to do a certain resistance to abrasion, resistant to high temperature welding, butt welding electrode.

EDM electrode
In view of tungsten steel, high temperature super-hard alloy die to be produced by corrosion, the common electrode wear big, slow, and the copper tungsten electrical corrosion of high speed, low loss rate, precise electrode shape, excellent processing performance, to ensure the accuracy of processing pieces of greatly increased.

High-voltage electrode discharge tube
High-voltage vacuum discharge tube in the workplace, the contact material in a few seconds of time zero temperatures thousands of degrees celsius, while the copper tungsten anti-ablation properties, high toughness, good electrical conductivity, thermal conductivity performance to the discharge tube to provide the necessary stability conditions.

Electronic packaging materials
Both the low-expansion properties of tungsten, but also has high thermal conductivity properties of copper, its thermal expansion coefficient and thermal conductivity of conductive material can be adjusted to change the composition and thereby to the material provided to facilitate the use.

Tungsten Copper Alloy Components Properties

Tungsten Copper Alloy Components Physical Properties
Tungsten copper alloy is a metal with a distinct reddish or orange tint, with a metallic luster. The cubic crystalline structure is face-centered, and reflects only red and orange colored light from the visible spectrum, giving it the familiar reddish hue. Compared to adjacent metals in the periodic table, copper is harder than zinc but softer than iron. The metal is malleable, meaning that it can be elongated with pressure and molded into different shapes. Copper is also ductile, which enables it to change form and be stretched into long thin structures without breaking. Tungsten copper alloy components properties, along with its ability to conduct electricity extremely well, make copper suitable for use in electrical cable manufacturing, where these physical attributes are particularly desirable.

Tungsten Copper Alloy Components Chemical Properties
The atomic number of copper used in wires is 29, meaning it has 29 protons. Copper's symbol is "Cu," and its atomic weight is 63.54. Copper is placed in column 1B in the periodic table, along with silver and gold, whose symbols are "Ag" and "Au," respectively.Tungsten copper alloy components have a Moh's hardness (a system of measurement to evaluate the hardness of metals) of between 2.5 and 3. Tungsten copper alloy components used in manufacturing wires has a very high specific gravity of 8.2, which is much higher than other substances of industrial interest, such as water (1.0), carbon (2.2) and sulfur (2.1). The specific densities of silver and gold are both higher than copper, at 10.5 and 19, respectively. Copper wires have low chemical reactivity; in reaction with other elements, laboratory copper has a charge of +1, known as cuprous or +2, known as cupric.

Tungsten Copper Plate

Introduction
All of our tungsten copper products are produced by sinter, and infiltrate process with high purity tungsten powder and oxygen-free copper. With accurate percentage composition of tungsten and copper,well-proportioned organization and high precision machining are the tungsten copper plates from Luoyang Achemetal Co., Ltd superior in quality.

The advantages of the tungsten copper plates:
High thermostability
High arc resistance
High strength
High electrical conductivity and thermal conductivity
Heat sink character

Application
Our tungsten copper plates are widely used in many industrial areas such as aerospace, power, electronic, metallurgy, mechanical to make:
Cooling device in electronic equipment
Electrodes in Resistance welding machine
Arcing contacts and vaccum contacts in high and medium voltage breakers or vaccum interruptors
Heat sinks as passive cooling elements of electronic devices and Electronic packaging materials.
The components of the pushing device in spacecrafts

Chemical composition and physical mechanical properties
The tungsten copper plates from Luoyang Achemetal co., Ltdcomply with china standard GH 8320-87

Copper Tungsten Plate

Our major product of copper tungsten sheet, copper tungsten plate, block and bar is very popular used as EDM electrode. This material has both tungsten and copper's character, for example: copper is good for electrical conductivity, tungsten is good for the hardness. Our copper tungsten plate for EDM is made by vacuum infiltration technology. Which product has very good physical and mechanical properties with excellent wear resistance.

Our copper tungsten plate has below advantage:

-Maturity press- sinter- infiltration process.

-high electrical conductivity gets high erosion speed.

Copper Tungsten Typical Properties

Material	Composition	Density	Electrical Conductivity	Hardness	Class	RWMA Group B
WD™10055	55W45CU	12.3 g/cm3	49 % IACS	70 HRB	10	10.74450
WD™10060	60W40CU	12.75 g/cm3	47 % IACS	76 HRB
WD™10065	65W35CU	13.3 g/cm3	44 % IACS	82 HRB
WD™10070	70W30CU	13.9 g/cm3	42 % IACS	88 HRB
WD™10075	75W25CU	14.5 g/cm3	38 % IACS	94 HRB	11	11.74400
WD™10080	80W20CU	15.2 g/cm3	34 % IACS	98 HRB	12	12.74350

Copper Tungsten Alloy

Copper tungsten alloy is the composite of Tungsten and Copper, which own the excellent performances of Tungsten and Copper, such as heat-resistant, ablate-resistant, high-intensity, excellent thermal and electrical conductivity. Tungsten copper alloy is easy to be machined. Tungsten copper alloy is used widely in such industries as engine, electrical power, electron, metallurgy, spaceflight and aviation. Using CIP formation, sintered tungsten skeleton and infiltrating copper technology, large size and special shape products of tungsten copper composites with 6-90 percent of copper are produced, such as electric contacts, electrode, refractory parts, heat sinks and parts of rocket, We can also produce tungsten copper alloy sheet material, tubing, plate and other small products by mould pressing, extrusion pressing and MIM.
Copper Tungsten alloy 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.
Parts are made from the tungsten copper 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 tungsten copper alloy are available as well.
Commonly used copper tungsten alloy contains 10 to 50 wt. % of copper, the remaining portion being substantially all tungsten. The typical properties of the alloy depend on its composition. The alloy with less wt.% of copper has higher density, higher hardness and higher resistivity. The typical density of CuW90 alloy, with 10% of copper, is 16.75g/cm3 and 11.85g/cm3 for CuW50 alloy. CuW90 has higher hardness and resistivity of 260 HB kgf/mm2 and 6.5 μΩ.cm than CuW50.

Tungsten Copper Alloy Applications

Tungsten alloy is the composite of Tungsten and Copper which own the excellent performances of Tungsten and Copper, such as heat-resistant, ablate-resistant, high-intensity,high-density, excellent thermal and electrical conductivity. It is easy to be machined. It is used widely in such industries as engine, electric power, electron, metallurgy, spaceflight and avigation.Using CIP formation, sintered tungsten skeleton and infiltrating copper technology, large size and special shape products of tungsten copper are produced, such as electric contacts, electrode, refractory parts, heat sinks and parts of rocket. We can also produce sheet material, tubing, plate and other small products by mould pressing, extrusion pressing and MIM.
1,High performance materials used in spaceflight field
Tungsten Copper alloy has such excellent performances as heat-resistant, ablate-resistant, high - intensity, high-density and self-cooling,so it is widely used in spaceflight field.
2,Electrical Contact materials
Electrical contacts are subjected to extreme mechanical and thermal stresses during operation. For fractions of a second, temperatures rise to several thousand degrees as a result of the arcing. Our tungsten Copper materials are used owing to their unique physical properties.
Advantages: without other element except Tungsten and Copper, uniform material, low content of gas and impurity, very high burn-off resistance, excellent thermal and electrical conductivity, all necessary joining and machining processes.
3,Electrodes for Spark Erosion
Our WCu electrodes are best suitable for EDM machining of those materials.
Advantages: low wear, high contour sharpness, good machinability.
Types of product: rods, tubes and plates.

Tungsten Copper Ring

Tungsten copper ring have high physical and mechanical properties, as well as high thermal and electrical conductivity, these prosperities make our materials very suitable for the die inserts and electrode facing.

Our copper tungsten alloys are designated as ASTMB702, RWMA Class 10, RWMA Class 11, RWMA Class 12, and GB/T8320-2003.

Typical properties:

Material	Composition	Density	Electrical Conductivity	Hardness	Class
CuW55	55W:45Cu	12.3 g/cm3	49% IACS	76 HRB	10
CuW60	60W:40Cu	12.75 g/cm3	47% IACS	82HRB
CuW65	65W:35Cu	13.3 g/cm3	44% IACS	88HRB
CuW70	70W:30Cu	13.8 g/cm3	42% IACS	94HRB	11
CuW75	75W:25Cu	14.5 g/cm3	38% IACS	98HRB	12
CuW80	80W:20Cu	15.15 g/cm3	34% IACS	109HRB