Products Description
The Tungsten Copper Button Contact is a core functional component in electrical contact systems. Its structural design employs a layered composite concept: the contact head uses a high-hardness tungsten sheet or tungsten-copper alloy sheet, while the feet are connected by iron rivets (for low-to-mid-range applications) or copper rivets (for mid-to-high-end applications). A permanent connection is achieved through a high-temperature brazing process, and finally, a nickel plating layer prevents oxidation and corrosion.
Key Functions and Design Advantages
Key Functions
Establishing and disconnecting high-inrush-current circuits; resisting arc erosion; conducting current and heat for Tungsten Contact Rivets.
Design Advantages
- Adjustable Tungsten Sheet Thickness: Tungsten sheets of varying thicknesses can be designed to balance lifespan and cost based on expected arc energy.
- Flexible Substrate Selection: Motorcycle Horn Tungsten Rivet made of different materials can be matched to meet current carrying capacity, cost, and strength requirements.
Manufacturing Process Advantages
Cutting Precision Control
When cutting tungsten rods into discs, the thickness tolerance is controlled within ±0.03mm to ensure the flatness of the contact surface for subsequent brazing for Solid Tungsten Contact Rivets.
Brazing Parameter Optimization
The temperature, time, and pressure of medium-frequency brazing need to be precisely matched to tungsten sheets and Car Horn Tungsten Contact Rivets of different thicknesses. Typical parameters are an operating temperature of 1042-1400°C and a holding time of 12-15 minutes.
Mold Design and Lifespan
Dedicated brazing molds can weld 300-500 Industrial Tungsten Brazed Contacts Rivets units at a time, with a mold lifespan of over 500 cycles, meeting the needs of mass production.
Technical Features
| Jointing Process | Medium-frequency brazing technology is used for Industrial Tungsten Brazed Contacts Rivets, with the operating temperature controlled within the range of 1042-1400°C. Special brazing filler metal is used to ensure the metallurgical bond strength between tungsten and copper/iron. The joint shear strength must reach above 83 MPa. |
| Bragging Heat-Affected Zone Control | The thickness of the transition zone between the tungsten sheet and the brazing filler is controlled within 50μm for Solid Tungsten Contact Rivets to avoid the formation of brittle phases. |
contact us
For customized Tungsten Copper Button Contact specifications, batch sampling, or matching project technical parameters, please feel free to contact us. We can provide selection solutions suitable for your working conditions and stable supply support.
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