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
What’s the Tungsten Contacts of Electrical Appliances?
As far as most electrical equipment is concerned, they use high-purity tungsten contacts as contact points, mainly because the Tungsten Contacts for Electrical Appliances have a high melting point, a small evaporation rate, and good electrical and thermal conductivity. Features. Tungsten Point Contact made with metal tungsten have a longer cycle life than conventional contacts, while ensuring good circuit board contact.
At present, common control electrical products such as AC contactors, electromagnetic relays, electrical switches and air switches contain electrical contacts, and Electric contacts are one of the most important components of these products. The reliability and service life of a product largely depend on the contact performance, which is affected by factors such as the contact material, load type, contact pressure, operating frequency, and use environment. When these factors cannot meet the working requirements, there will be problems such as electrochemical corrosion of contacts, welding between contacts, contact wear, and increase in contact resistance, which will lead to unreliable operation, functional failure and even potential safety hazards.
In the energized state, if the current to open the circuit exceeds a certain limit, or if the voltage across the contact gap after disconnection exceeds a certain limit, a yes will occur in the contact gap. Under the action of a strong electric field, the gas between the contacts will discharge, and sparks and strong light will be generated and emitted with the increase of temperature. The arc will corrode the metal surface of the contact, shorten the service life of the electrical appliance, prolong the breaking time of the circuit, and cause the contact of the contact to fail. In severe cases, it can also lead to fire accidents.
Today, in order to further improve the overall quality of electrical equipment contact points, most manufacturers use metal pure tungsten to manufacture electrical contacts.
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.
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.
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 !