China supplier electric resistance welding use high heat resistance copper tungaten bar - Exportimes.com

China supplier electric resistance welding use high heat resistance copper tungaten bar

China supplier electric resistance welding use high heat resistance copper tungaten bar
  • China supplier electric resistance welding use high heat resistance copper tungaten bar
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Quick Details

  • Place of Origin: Liaoning, China (Mainland)
  • Brand Name: TOP
  • Name: high heat resistance copper tungaten bar
  • Process: Powder metallurgy
  • Type: Electrivity industry
  • Brand NO.: Top
  • Material: Copper tungsten alloy
  • Grade: CuW50-90
  • Density: 11.85-16.75cm/3
  • Hardness: 115-260
  • Conductivity: ≥27-54
  • Resistivity: ≤3.2-6.5

Packaging & Delivery

Packaging Details:Plywood cases and any kind as your need .Delivery Detail:30 days

Product Details

Description

Specifications

 

1. Grade: W50--90Cu
2. Density: 11.85--16.75g/cc
3. Certificate: ISO9001: 2000
4. OEM and ODM accept
 

 

Quick Details

 

 

Name CuW alloy electrode ,insert  Type Electrivity industry       
Place of origin Shenyang ,China  Brand name Top  
Grade CuW75  Material Copper tungsten alloy
Process Powder metallurgy

 

Plates, sheets and strips/100cm² max./Cu 10-60%;rods/Φ5mm and larger/Cu 10-60%; copper-tungsten alloys can be welded with copper and chrome-copper alloys, and machined as required.

 

Brief Introduction

 

Tungsten Copper Products

WCu 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. WCu alloys are also used in electrodes for electrical discharge machining and electrochemical machining.

 

The CuW75 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 silicorn, gallium arsenide, and some ceramics. Other materials for this applications are CuMo alloy, AlSiC, and Dymalloy.

 

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.

 

Company Profile

Our workshop uses complete powder metallurgical equipment as well as machines for more advanced processing. These machines allow for a degree of accuracy, which can fully meet the demands for the further processing and production of other complicated spare parts.

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