Electrical contacts, contact lugs and assemblies are the core of Redexpart's business. As the most critical component of a switch or circuit protection device, the quality of the contact material, its adhesion to the substrate, and dimensional integrity are key to the primary function of the final product.
Types of electrical contacts
Solid Rivet Contacts
These contacts are usually made from a single material, such as copper or aluminum, and are riveted or secured to stamped parts. They are typically used in applications that require stable connections.
Fixed Contacts
Fixed contacts are parts of an electrical connection that remain stationary. They are typically connected to moving contacts (such as the other end of a switch) to complete a circuit.
Movable Rivet Contacts
Movable rivet contacts are contacts that move during operation. They are often used in the moving parts of switches or relays to switch between making and breaking contact.
Bimetal Contacts
Bimetallic contacts are made by layering two different metals or alloys. This design takes advantage of the different coefficients of thermal expansion of metals to automatically open or close in response to changes in temperature.
Successful cases of installation of silver contacts
Electrical contact assembly process
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1. RIVET |
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Riveting is a mechanical fastening process in which a rivet is inserted into two or more pieces of material to hold them together. |
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2. Spot welding |
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Spot welding is a type of resistance welding in which a joint is created between two superimposed metal sheets by melting the contact surfaces with an electric current. |
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3. SOLDERING |
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Soldering is a mechanical fastening process in which a rivet is driven into two or more pieces of material to hold them together. |
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4. SPIKE |
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Soldering is a low-temperature joining process that uses filler metal (solder) with a melting point below 450 degrees (842 degrees F). |
Electrical contacts rivet wire
These materials have excellent electrical conductivity, corrosion resistance and durability, and various metal contact wire materials can be selected according to specific application and performance requirements.
pure copper wire
fine silver
silver tin oxide
pure silver wire
gold-silver alloy
zinc silver oxide
pure gold wire
Silver-nickel alloy
silver cadmium oxide
copper alloy wire
silver-copper alloy
special customer requirements
High-performance automatic welding
Mold welding is a highly efficient manufacturing method introduced by HLC to solve problems such as low production capacity and high labor costs in the production of electrical contact assemblies. This production equipment involves installing welding heads between the press feed mechanism and the continuous stamping die, allowing the seamless integration of feeding, resistance welding and stamping processes in a single die.
application of contact rivet
Frequently asked questions about electrical contacts
Q: What is a contact rivet?
Q: What metal is used for electrical contacts?
Q: What factors affect the performance of electrical contacts in my devices?
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