Rm.2009,20th Floor,Unit C,Yuhong Plaza,No. 61 Zijingshan Road,Zhengzhou,China
Home ProductsTungsten Copper Alloy

Arc Erosion Resistant W80Cu20 Tungsten Copper Alloy Ring

Certification
China Zhengzhou Sanhui Refractory Metal Co., Ltd. certification
China Zhengzhou Sanhui Refractory Metal Co., Ltd. certification
Zhengzhou Sanhui is professional partner with excellent quality and warm service.

—— James

We appreciate your long term cooperation with quality assurance and timely delivery.And thanks alot for your kind support through 2020.

—— Bob

I'm Online Chat Now

Arc Erosion Resistant W80Cu20 Tungsten Copper Alloy Ring

Arc Erosion Resistant W80Cu20 Tungsten Copper Alloy Ring
Arc Erosion Resistant W80Cu20 Tungsten Copper Alloy Ring Arc Erosion Resistant W80Cu20 Tungsten Copper Alloy Ring

Large Image :  Arc Erosion Resistant W80Cu20 Tungsten Copper Alloy Ring

Product Details:
Place of Origin: China
Brand Name: SANHUI
Certification: ISO9001
Model Number: Customized
Payment & Shipping Terms:
Minimum Order Quantity: 10 Kilograms
Price: Negotiable
Packaging Details: Exported plywood case with foam inside
Delivery Time: 20 days after order
Payment Terms: T/T
Supply Ability: 5000 kilograms per month
Detailed Product Description
Material: W80Cu20 Tungsten Copper Alloy Ring Application: Electrical Contacts
Shape: Customized Dimensions: Customized
Surface: Polished Standard: ASTM
High Light:

W80Cu20 Tungsten Copper Alloy

,

Erosion Resistant Tungsten Copper Alloy

,

W80Cu20 tungsten copper ring

Customized Arc Erosion Resistant W80Cu20 Tungsten Copper Alloy Ring

 

W80/Cu20 Polished tungsten copper is used for arcing contacts in SF6 circuit breakers for ultra high, high and medium voltage applications. At the heart of the switching chamber, WCu contacts are exposed to extreme mechanical and thermal loads: When the circuit is opened and closed, the arc starts directly at the switch contacts at a temperature of up to 20 000 °C.

 

 

Specification of W80Cu20 Tungsten Copper Alloy Ring:

Product Name Customized Arc Erosion Resistant Tungsten Copper Alloy
Material Tungsten copper alloy
Surface Polished
Dimensions Customized
Application Electrical Contacts

 

 

 

W80/Cu20 Polished tungsten copper is popular because of its combination of unique material properties. Ahigh level of temperature resistance is one of the most important advantages of tungsten, while the copper content increases the electrical and thermal conductivity. Contact materials made of WCu are also characterized by the following properties:

  • Good electrical conductivity
  • Excellent strength
  • Very good machinability
  • Good thermal conductivity
  • Low thermal expansion
  • High arc erosion resis
 

No arc erosion: With the right mix of materials.

  Content-of-tungsten_burn-off-volume.jpg

 

 

 

By choosing the right mixture of tungsten and copper, we are able to influence the product's arc erosion properties. At a tungsten content of 80 %, we achieve the lowest arc erosion rates. Depending on the voltage and current intensity as well as on economic considerations, we can vary the tungsten content between 60 and 90 % to meet the exact needs of your application.

 

Good conductivity: High density makes it possible.

The denser the material, the better it is at conducting electricity and heat. One trick for producing WCu in higher densities is to add nickel during the sintering process. However, too much nickel has a negative influence on the conductivity of the material. Take advantage of our employees' experience and benefit from an optimum balance between material density and conductivity.
Content-of-Nickel.jpg Density_Sintering_time.jpg

 

 

Greater endurance: With a well defined grain structure.

FG20 A20NiF A20Ni  
FG20.jpg AK20NiF.jpg AK20Ni.jpg bar.jpg200 µm

The higher the applied voltage is, the more resistant to arc erosion the contact material must be. SANHUI is able to modify the arc erosion resistance of WCu by varying the grain size of its tungsten. For particularly high voltage ranges, we use materials with an extremely fine grain size.

 

Arc Erosion Resistant W80Cu20 Tungsten Copper Alloy Ring 7Arc Erosion Resistant W80Cu20 Tungsten Copper Alloy Ring 8

 

Contact Details
Zhengzhou Sanhui Refractory Metal Co., Ltd.

Contact Person: Ailsa

Tel: 86 - 18937104178

Send your inquiry directly to us (0 / 3000)

Request A Quote

E-Mail | Sitemap

Privacy Policy China Good Quality Molybdenum Products Supplier. © 2020 - 2021 machining-molybdenum.com. All Rights Reserved.