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.
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.
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
1. Tungsten Contact Rivets Processing Requirements
With the continuous development of the automobile manufacturing industry, the requirements for tungsten contact materials are rapidly increasing. The user's requirements for tungsten contact materials are:
(1)Rod without cracks, scratches, smooth surface;
(2)Fine and uniform cross-section grains, short fibers;
(3)Good straightness, concentricity and roundness;
(4)High hardness, good impact toughness;
(5)Vapor pressure Low evaporation rate, small thermal expansion coefficient;
(6)Good and stable arc resistance.
Physical and mechanical properties of Motorcycle Horn Tungsten Rivet materials In order to meet user requirements, technicians have done a lot of work. For the splitting, brittle fracture, and uneven grain size of the cross-section during the production process of the Solid Tungsten Contact Rivets material, the rod diameter is the same. The reasons why the O degree and flatness can’t meet the requirements are comprehensively analyzed, and a series of measures are taken pertinently.
2. Electrical Tungsten Contact Rivets Material Characteristics
Tungsten is used as electrical contact or contact material, which is resistant to arc ablation; good fusion resistance; metal surface evaporation caused by electrothermal action, less transfer and consumption; strong current interrupting ability; and good wear resistance, dynamic hit performance. Compared with other metal or alloy materials, the price is low, so tungsten contacts and tungsten wafers are widely used in various fields of industry, agriculture, technology and defense.
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.
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 !