Tungsten copper alloy

Tungsten copper alloy is an alloy composed of tungsten and copper. The copper content of commonly used alloys is 10% to 50%. The alloy is made by powder metallurgy method, which has good electrical and thermal conductivity, good high temperature strength and certain plasticity. At very high temperatures, such as above 3000 ℃, the copper in the alloy is liquefied and evaporated, absorbing a large amount of heat and reducing the surface temperature of the material, so this kind of material is also called metal sweating material. Tungsten copper alloy has a wide range of uses. It is mainly used to manufacture high-voltage electrical switch contacts and rocket nozzle throat lining, tail rudder and other high-temperature components that resist arc ablation. It is also used as an electrode for electrical processing, high-temperature molds and other occasions that require high electrical and thermal conductivity and high-temperature use.

Classification:

Tungsten alloy

E-mail:

monfils.chen@mtwkj.com

Contact

Message

introduce

Product Introduction

Advantages of tungsten copper alloy

Resistance welding electrode: combines the advantages of tungsten and copper, high temperature resistance, arc ablation resistance, high strength, specific gravity, good electrical and thermal conductivity, easy cutting, and has the characteristics of sweating cooling. Because of the high hardness, high melting point and anti-adhesion characteristics of tungsten, tungsten copper alloy is often used to make projection welding and butt welding electrodes with certain wear resistance and high temperature resistance.

Electric spark electrode: when the mold made of tungsten steel and high temperature resistant super hard alloy needs electric erosion, the ordinary electrode loss is large and the speed is slow. The high electric corrosion rate, low loss rate, accurate electrode shape and excellent processing performance of tungsten copper can ensure that the accuracy of the processed parts is greatly improved.

High-voltage discharge tube electrode: When the high-voltage vacuum discharge tube is working, the temperature of the contact material will rise to several thousand degrees Celsius within a few tenths of a second. The tungsten copper high ablation resistance, high toughness, good electrical conductivity, thermal conductivity can provide the necessary conditions for the stable work of the discharge tube.

Electronic packaging materials: both the low expansion characteristics of tungsten, but also has the high thermal conductivity of copper, its thermal expansion coefficient and thermal conductivity can be changed by adjusting the composition of the material, so as to expand the use of materials to provide convenience.

Copper Tungsten Technical Data

Ingredients	Density	Hardness	Resistivity	IACS	bending strength
Ingredients	G/ cm3 ≥	HB kgf/ mm2 ≥	µΩ.cm≤	% ≥	Mpa≥
W50/Cu50	11.85	115	3.2	54	--
W55/Cu45	12.30	125	3.5	49	--
W60/Cu40	12.75	140	3.7	47	--
W65/Cu35	13.30	155	3.9	44	--
W70/Cu30	13.80	175	4.1	42	790
W75/Cu25	14.50	195	4.5	38	885
W80/Cu20	15.15	220	5.0	34	980
W85/Cu15	15.90	240	5.7	30	1080
W90/Cu10	16.75	260	6.5	27	1160

The use of tungsten copper alloy

Due to the characteristics of high hardness, high melting point and anti-adhesion of tungsten, tungsten copper alloy is often used as a projection welding and spot welding electrode with certain wear resistance and high temperature resistance. When the mold made of tungsten steel high temperature resistant super hard alloy needs electric corrosion, the ordinary electrode loss is large and the speed is slow. The tungsten copper alloy has high electric erosion speed, low loss rate, precise electrode shape and excellent processing performance, which can ensure that the accuracy of the workpiece is greatly improved.

Electrical and electronic fields: Because of the good thermal conductivity and electrical conductivity of tungsten copper alloy, it is often used in the manufacture of heat sinks, heat conduction sheets and substrates for high-power electronic devices, such as heat sinks for high-power semiconductor devices, microprocessors, etc.
Aerospace: Tungsten-copper alloys are widely used in aerospace because of their high strength, wear resistance and thermal shock resistance. It is usually used to manufacture engine parts, braking systems, gas turbine engine nozzles and other parts that work under high temperature and high pressure.
Manufacturing: In the manufacturing industry, tungsten copper alloys are often used to manufacture molds, cutting tools, welding electrodes, resistors and key components of vacuum equipment. Its wear resistance and thermal shock resistance make it excellent in processing such as high-speed cutting, stamping and welding.
Ship engineering: Because tungsten copper alloy has good corrosion resistance and seawater erosion resistance, it is often used in the manufacture of marine engineering, marine equipment and offshore drilling platforms and other parts that are resistant to seawater corrosion.
Medical devices: tungsten copper alloy is also used in the field of medical devices, such as the manufacture of parts of radiotherapy devices, nuclear magnetic resonance equipment accessories, etc., because of its good thermal conductivity and high strength characteristics.
Aerospace devices: Tungsten copper alloys are often used to manufacture key components of aerospace devices, such as fuel assemblies, missile parts, etc., due to their stability and reliability in extreme environments.