W1 acuity 99.95% purity
The proportion of acuity 19.1 g/cm3 ~ 19.3 g/cm3
Grain size ≥ 10,000PCS/mm2
Hardness is 71-74 or higher hra
Tolerance of dimension d.h±0.05mm (can be produced according to customer's drawing size.)
Seat nails are made from mild carbon steel with a carbon content of 0.10% or less
The welding purity of tungsten copper alloy is greater than or equal to 99.95%
Welding point strength ≥ 83MPa
Tungsten as electrical contact or contact material use, arc ablation resistance; Good melting resistance; Evaporation of metal surface caused by electric heating, less transfer and consumption; Strong ability to block current; And has good wear resistance, dynamic performance. Tungsten contacts and tungsten discs are widely used in industry, agriculture, science and technology, and national defense due to their low price compared with other metal or alloy materials. Its uses are as follows:
Automotive electrical contact (distributor, voltage regulator, horn, alarm, etc.)
Contacts for magneto outages
Electrical contact of machine tool
All kinds of contacts for automatic switching
Contacts for various relays
Contacts for all kinds of open and close devices
Contacts for all kinds of communicators
Contacts for all kinds of alarms
Contacts for electronic instruments and signalizers
Tungsten contacts are polished to make them smooth and in close contact with the surface, while removing the fine cracks and oxides on the surface and filling the pores on the surface with additives such as iron. The additions in the pores subsequently change due to the melting point of tungsten. The residual tungsten oxide is separated from the stomatal wall due to the reduction of the negative electrode, looking for a larger stomatal, and thus becomes a free oxide and additive.
Contact information:
E-mail: mail@refrachina.com
Address:Suite A2202-03, Qujiang Exhibition International Building,Yanzhan Road,Xi'an,
710061,China
Telephone:86-29-85325399
Fax： 029-85325610
