The raw materials of three-layer composite tungsten contacts:
The surface material of tungsten contacts can be pure tungsten, silver, copper, silver nickel, silver tin oxide, silver oxide cadmium and so on;
The substrate of tungsten contacts may be nickel, iron, copper, silver, silver alloy and stainless steel and so on;

Specifications
The thickness of the surface material is between0.03mm and 1.0mm;
The thickness of the substrate is between 0.08mm and 3.5mm;

Application
They are mainly used in thermostats, relays, micro-switches and circuit breakers and so on.

Advantage
The welding surface of three-layer composite tungsten contacts are nickel, iron, copper and other materials, in order to increase its welding ability, there is also a pad on the top. Jointed the welding parts by melt metal, which is Cu with stable electrical performance and low contact resistance, so their positioning is easy, their welded portions are more beautiful and environment friendly, the required heating time is shorter and so on.

 

Tungsten Metals Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten.com.cn
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Tungsten contacts’ specification types and applications:

Rivet-type tungsten contacts:
Prepared by riveting;
It can realize continuous automatic production;
Rivet-type tungsten contacts are typically used for communications relay, relay, small appliances, 3C appliances, traditional breaking switch, various types of switches and so on;

Button-type tungsten contacts:
Prepared by welding;
It can also be suitable for continuous automatic production;
Button-type tungsten contacts are commonly used in temperature breaking switch contacts, circuit breaker contacts, protection contacts and various switching contacts for conducting and breaking contact, etc;

Size range:
Contacts diameter: 0.6 ~ 10mm, diameter of line: 0.6 ~ 4.0mm, silver layer thickness: 0.15mm ~ 2.0mm.

Contacts surfaces are silver copper, silver nickel, silver, silver zinc oxide, silver cadmium oxide, silver tin oxide and silver indium tin oxide, and line materials not can be made but also be imported;
The substrate of tungsten contacts are copper nickel, copper and so on. And they can electroplate gold, silver, nickel and so on;

Rivet-type tungsten contacts and button-type tungsten contacts possess lower cost, low resistance, easier process and wide application and so on.

 

Tungsten Metals Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten.com.cn
 Tel.: 86 592 5129696; Fax: 86 592 5129797
 Email: sales@chinatungsten.com
 Tungsten & Molybdenum Information Bank: http://i.chinatungsten.com
 Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
 Molybdenum News & Molybdenum Price: http://news.molybdenum.com.cn

Specification of tungsten points:
Rivet-type tungsten points processed by riveting and its continuous automatic production can be realized. Besides, they are usually applied in relay, 3C appliances, small appliances, communications relay, various types of switches, traditional breaking switch and so on;
Button-type tungsten points processed by welding and its continuous automatic production can also be realized.
Button-type tungsten points are widely used as breaker points, protection points, temperature breaking switch points, and various switching points for conducting and breaking contact, etc;

Dimension range:
The diameter of tungsten points is between 0.6mm and 10mm, its diameter of line is between 0.6mm and 4.0mm, and its silver layer thickness is between 0.15mm and 2.0mm.

The raw materials of tungsten point surface are silver, silver nickel, silver copper, silver cadmium oxide, silver indium tin oxide, silver tin oxide and silver zinc oxide. Besides, its line materials can be made or be imported;
The substrate of tungsten points: copper, copper nickel and so on.
Tungsten points can plate silver, gold, nickel and so on;

Rivet-type and button-type tungsten points have the advantage of lower resistance, lower cost, easier processing and so on.


 

Tungsten Metals Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten.com.cn
 Tel.: 86 592 5129696; Fax: 86 592 5129797
 Email: sales@chinatungsten.com
 Tungsten & Molybdenum Information Bank: http://i.chinatungsten.com
 Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
 Molybdenum News & Molybdenum Price: http://news.molybdenum.com.cn

Specification of tungsten points:

Tungsten points possess circular type, rectangular type, square type, prismatic type and so on.
There are a lot of contact materials, such as, silver tungsten carbide, copper tungsten, tungsten iron, pure tungsten, silver nickel, silver graphite, silver tungsten, and silver metal oxides and so on;
Sheet thickness: 0.5mm - 3.0mm;
Sheet length: 3.0mm - 25.0mm;
Sheet width: 3.0mm - 20.0mm;
Tungsten points diameter: 2.0mm - 25.0mm;
(other specifications are also available according to customer’s requirements)
Advantages of tungsten points prepared by powder metallurgy:
High density;
Better average size;
Good particle uniformity;
High pressure resistance;
Anti current corrosion;
High purity of tungsten powder particles;
The advantage of tungsten points may almost exploited in the process by
adding a certain ratio of rare earth elements.


 

Tungsten Metals Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten.com.cn
 Tel.: 86 592 5129696; Fax: 86 592 5129797
 Email: sales@chinatungsten.com
 Tungsten & Molybdenum Information Bank: http://i.chinatungsten.com
 Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
 Molybdenum News & Molybdenum Price: http://news.molybdenum.com.cn