Products Description
Our Trimetal Silver Electric Contacts are manufactured using a state-of-the-art metal cold heading process. This technique allows for the precise shaping of the contact parts without compromising the integrity of the materials. The cold heading process ensures that the silver alloy used for the head and foot of the Three Compound Rivet is perfectly bonded to the copper core, creating a seamless and durable structure.
Core Bullet Points
Trimetal Structure
Ag-Cu-Ag alloy composite layers optimized for high-current switching endurance.
01
Superior Conductivity
The copper substrate of Trimetal Silver Composite Electrical Contacts for Relay exhibits conductivity ≥85% IACS.
02
High Bonding Strength
The solid-state metallurgical diffusion welding process prevents delamination of the Trimetal Silver Contact Point under thermal shock.
03
Low Contact Resistance
Stable micro-resistance (≤ 0.5 mΩ) minimizes Joule heating during continuous operation of the Trimetal Silver Contact Point for Switch.
04
Precise Dimensional Tolerance
The stamping and rolling tolerances of the Trimetal Contacts Rivet for Switch are controlled within ±0.005 mm, suitable for automated assembly.
05
Technical Specifications & Material Data
| Technical Parameter | Specification Value / Standard |
| Material Composition |
Face: AgSnO2 / AgNi / Fine Silver Interlayer: Copper / Nickel Base: C1100 ETP Copper |
| Electrical Conductivity | ≥ 85% IACS (Copper backing substrate) |
| Bonding / Shear Strength | ≥ 150 MPa (Metallurgical diffusion interface) |
| Contact Resistance | ≤ 0.5 mΩ (Initial state) |
| Vickers Hardness (HV) | 85 – 130 HV (Depending on alloy temper) |
| Plating Options | Unplated, Flash Silver, or Gold Plating |
| Dimensional Tolerance | Length/Width: ±0.01 mm |
| Compliance & Standards | IATF 16949, ISO 9001, RoHS, REACH |
Frequently Asked Questions
How does the trimetal composite structure prevent contact detachment under high thermal cycling?
Our Trimetal Silver Contact Points utilize a solid-state metallurgical diffusion bonding process during rolling and extrusion. This creates an atomic-level fusion layer between the precious metal contact face, the interlayer, and the copper backing, ensuring the assembly withstands extreme temperature fluctuations without delamination or cracking.
What specific surface treatments or anti-oxidation measures are applied to the copper base?
To prevent the surface of Triple Metal Composite Electrical Contacts from oxidizing and maintain low contact resistance during storage, the copper backing and terminal portions can be supplied with an ultra-thin flash silver or nickel electroplated coating. Vacuum annealing is also utilized post-stamping to relieve internal mechanical stresses and optimize the material temper.
What is the standard prototype tooling lead time and sample verification workflow for custom OEM designs?
For a custom Silver Alloy Electric Tri-Metal Contact requiring new tooling, progressive die development, and sample fabrication, it typically takes 7 to 15 days. Initial samples are shipped alongside full-dimensional inspection reports and material spectra data sheets for engineering sign-off before mass production.
Contact Us
Submit your engineering drawings, material specifications, or Trimetal Silver Electric Contact sample requirements to receive a fast OEM quotation and technical DFM analysis within 24 hours from our engineering team.
Hot Tags: trimetal silver electric contact, China trimetal silver electric contact manufacturers, suppliers, factory, Trimetal Rivet Contacts For Electrical, Trimetal Electrical Rivets, Trimetal Silver Contacts, Tri metal Silver Rivet Contacts, Double Sides Contacts, Electrical Trimetal Silver Contacts
