What are the Bimetal Silver Contacts?
Engineering teams designing high‑frequency switching devices require electrical contacts that maintain stable conductivity and minimal temperature rise under severe operational cycles. These Electrical Bimetal Silver Contacts utilize an advanced solid‑phase metallurgical bonding process to join a precious metal functional tip (such as AgSnO2) onto an oxygen‑free copper shank. Manufactured in our source factory using high‑speed cold heading and precision stamping lines, this composite design optimizes precious metal consumption while delivering exceptional mechanical shear strength and long‑term arc interruption performance for power distribution equipment.
Materials and Structure of Bimetal Relay Contact Point
Silver Alloy Working Layer
The contact working layer uses different silver‑alloy materials selected for given switching requirements. AgNi and AgSnO2 can be supplied per existing product specifications.
Oxygen-Free Copper Base
The base of the Electrical Contact Silver Point structure is made of oxygen-free copper. Positioned behind the silver contact's working layer, the copper component provides a conductive path for the rivet structure while also facilitating heat dissipation.
Composite Contact Structure
Bimetallic Rivets adopt a composite structure combining silver alloy and copper instead of full solid silver construction. The silver alloy serves as the functional contact surface for electrical conduction, whereas copper material forms the supportive base structure of the rivet body.
Packaging & Global Logistics Of Contactor Contacts
| Industrial Packaging Standards | Bimetallic Rivets items are sealed in multi‑layer anti‑static polyethylene bags, placed inside heavy‑duty corrugated cartons, and secured on fumigation‑free wooden pallets. |
| Global Freight Collaboration | Partnered with international logistics providers to offer secure air freight, express courier, and maritime container shipping worldwide. |
| Traceability Documentation |
Every shipment for Bi-Metal Electrical Contact Points includes comprehensive factory test reports, material certification sheets, and lot traceability barcodes for quality assurance. |
Frequently Asked Questions about Bimetallic Rivets
What is the primary advantage of Bimetallic Rivets over solid silver tips?
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Bimetallic Rivets bond a thin functional silver alloy head onto a copper shank, reducing precious metal material costs by 40% to 70% while retaining identical electrical contact performance at the active switching interface.
How is the metallurgical bond between the silver tip and copper shank verified?
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Bonding integrity is verified through destructive shear strength testing and metallographic microscopic cross‑section analysis. Production lots must consistently exceed 180 MPa shear force to pass factory quality audits.
What information should be provided when requesting a customized Cold Forming Process Contacts?
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Provide the contact drawing or sample together with silver alloy requirements, copper substrate grade, critical dimensions, tolerances, annual quantity, and application. Electrical information such as switching current, voltage, load type, and required contact resistance is also useful when selecting the contact material and defining inspection requirements.
How should contact resistance be specified for a custom rivet contact?
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Contact resistance should be specified together with the measurement method and test conditions. Contact force, mating material, surface condition, current, and measurement configuration can all affect the measured value. A resistance limit without defined testing conditions is insufficient for reliable comparison between production batches or suppliers.
Are these Bimetal Silver Composite Contact Rivets compliant with environmental regulations?
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Yes, all silver‑metal oxide and silver‑nickel contact grades are completely free of restricted hazardous substances and fully comply with RoHS and REACH directives.
contact us
Send the drawing or physical sample now to confirm material selection, rivet geometry, inspection requirements, and production feasibility for your Bimetal Silver Contacts program.
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