Production range for Pure Tungsten Contact and Tungsten Disk
1-Tungsten content: ≥99.95%
2-thickness: H0.50mm or more,
3-Diameter: Φ2.00mm-10.00mm,
4-Spherical surface: SR13mm-50mm.
6-High specific gravity alloy: weight 0.02g-200g,
6-Size tolerance: ±0.02mm-±0.06mm,
7-Roughness: ≤0.04um
8-Tungsten Contact type: Flat, Radius,Ventilated,Collar,Screw
Tungsten contact rivet parameter
1-Processing technology: heat welding for tungsten round coin and copper alloy rivet.
2-Normal contact rivet's head diameter size: Φ1.00mm-15.00mm
3-Main material:W/Cu,W/Iron,etc.
4-Contact shape: rivet type.
5-Surface treatment:nickel plating or no.
6-Weather resistance
7-Easy to install
8-Robust construction
Tungsten Steel Contact is the contact point used to make or break the circuit in the switch. It is widely used in the contacts of AC contactors, automobiles, motorcycles, electric horns, magneto and other electrical products.We have five production lines for making Wolfram Copper Contact Rivets 150 million pcs monthly.
What's the Pure Tungsten Contact and Application ?
Tungsten Rivet or tungsten contact can be made from tungsten rod or tungsten disk.Tungsten point/contacts are for use in high voltage applications, usually where highly repetitive switching is required. Tungsten has a melting temperature of 3,380℃ which gives it excellent arc-erosion resistance.Tungsten may develop troublesome oxide films, especially when used as the anode contact in some DC applications. Therefore, pure tungsten is often used as the cathode contact, and a palladium alloy used as the anode contact. Such a combination also minimizes contact interface resistance and material transfer.
Xiamen Apollo is now recognized as a leading manufacturer and supplier of Tungsten Electrical Contacts in China. These are primarily used in Automotive Electric Horns, Distributor Contact Breaker Assembly, and Relays etc. Our entire assortment of Tungsten Discs and Tungsten Contact Rivets are manufactured in our factory.
Flat Tungsten Contact Points for Motorcycle Horn are formed by brazing (welding/soldering) tungsten disc with Copper Rivet or Mild Steel Rivet. The Flat Head Rivets are made according to customer specifications and requirements. The Tungsten Copper Electrical Contact are plated by pure nickel to make it corrosion resistant. Tungsten Contact for Motorcycle Horn are widely used in high frequency make and break applications such as automobile horns, relays and distributor point.
Characteristics required by the Tungsten Contact during using:
1. The contact resistance is low and stable;
2. Good welding resistance and complete opening and closing;
3. Good conductivity;
4. The wear resistance is good, and the Tungsten contact surface can’t be changed.
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 !