Tungsten Bimetal Contact Point features:
1-The tungsten contact surface is bright and smooth;
2-The grain size is uniform,the fiber is short;
3-The flatness,concentric degree and roundness is good;
4-The hardness is high,the impact toughness is good;
5-The vapor pressure is low,the evaporation rate is small,the thermal expansion coefficient is small,and the arc resistance is good and stable;
6-Very easy to use and Ex-works factory price.
Solid Tungsten Contact Rivets is characterized by its advantageous properties of high melting and boiling points, sufficient electrical and thermal conductivity and high hardness and density .Industrial Tungsten Brazed Contacts Rivets are mainly used in the form of brazed contact tips for switching duties that require a rapid switching sequence such as Car Horn Tungsten Contact Rivets for cars and trucks.
Is there any difference between Tungsten Bar/Rod Slicing Disks and Tungsten Powder Sintering Disks?
The biggest difference between pure tungsten contact and sintered tungsten contact is:
1. Different density 2. Different grain size 3. Different hardness of tungsten sheet. 4. Different production process 5. Different life.
Tungsten Bar/Rod Slicing Disks:
1-Tungsten content: ≥99.95%
2-Density: 19.2 g/cm3
3-Hardness: HV1≥460
4-Grain size: 12000 ps/mm2
5-Process: pure tungsten rod cutting
Tungsten Powder Sintering Disks:
1-Tungsten content: ≥99.95%
2-Density: 18.2g/cm3
3- Hardness: HV1≥325
4- Grain size: 11500 ps/mm2
5- Process: Tungsten powder pressing and sintering
Copper or Iron Tungsten Contact Rivets Application:
Tungsten point contact is widely used in relays,Electric Horn,Circuit Breaker,AC Contactor,New Energy PV Relay,etc.The term Relay generally refers to a device that provides an electrical connection between two or more points in response to the application of a control signal. The most common and widely used type of electrical relay is the electromechanical relay or EMR.
The relay Tungsten Steel Contact is electrically conductive pieces of metal which touch together completing a circuit and allow the circuit current to flow, just like a switch. When Copper Tungsten Contacts are open the resistance between the contacts is very high in the Mega-Ohms, producing an open circuit condition and no circuit current flows. When the contacts are closed Tungsten Copper Electrical Contact resistance should be zero, a short circuit, but this is not always the case. All relay contacts have a certain amount of "contact resistance" when they are closed and this is called the "On-Resistance", similar to FET's. With a new relay and contacts this ON-resistance will be very small, generally less than 0.2Ω's because the tips are new and clean.
Contact Information:
Mr.Terry Young (Sales Manager)
Apollo Electronic Components (Xiamen) Co.,Ltd
Xiamen Apollo Stamping Welding Technology Co., Ltd
Add:225#,Jinshang Road,Huli District,Xiamen City,Fujian Province,China,361009
Tel&Fax: 0592-5765084, Mob/WhatsApp/WeChat: 0086-13859903038 ,QQ: 1260358661
Email: yfd@china-electronic-components.com
Web: www.china-electronic-components.com , www.stamping-welding.com
Since 1990,professional in Silver Contact Rivet&Core&Screw Terminal for Relay&Switch&Contactor ect Stamping&Welding solutions !