Silver Brazed Contacts
Products Description
Silver Brazed Contacts are high-performance electrical contact structures that use silver-based materials as the working surface and employ a high-temperature brazing process to firmly weld the silver contacts to a base metal (such as copper, copper alloys, nickel alloys, etc.).
Their core advantages lie in their strong conductivity, high bonding strength, superior arc resistance, and long service life, making them one of the most commonly used contact welder types in modern mid-to-high-end electrical equipment.
They are suitable for products requiring frequent switching, high instantaneous current surges, and long-term stable load bearing, achieving overall electrical system performance improvements such as low energy consumption, low temperature rise, and long lifespan.
Design Advantages: Full-Scenario Adaptability Centered on "Connection Reliability"
Customised Structural Form
Supports various structural designs such as flat, convex, stepped, and embedded types, precisely adapted to equipment installation space and current transmission requirements-for example, circuit breakers are adapted to a "large contact tip area + bolt fixing" structure, and miniature relays are adapted to a "miniaturised + riveted positioning" structure;
Optimised Brazing Interface
The overlap angle (15°-45°) and brazing bevel of the contact tip weldings and substrate are designed to improve the wetting effect of the brazing filler metal, ensuring uniform coverage of the brazing layer and a connection strength consistency of ≤±5%.
Innovative Heat Dissipation Structure
In high-current scenarios, the welding component substrate is designed with heat dissipation grooves or heat sinks, integrating the brazing layer with the heat dissipation structure, improving heat dissipation efficiency by 30% compared to traditional structures and avoiding localised high-temperature ablation.
Miniaturised Integrated Design
The integrated metallurgical structure reduces redundant connecting components, resulting in a smaller product size compared to "Electrical Contact Welding + connector" designs. The combined design reduces the size by 20%-25%, adapting to the trend of miniaturisation and integration of electrical equipment.
Material Advantages: Synergistic Material Selection for Silver Brazing Contacts
Silver-based brazing filler metal
Utilises high-purity silver-based brazing filler metal, providing excellent conductivity and wettability.
01
Contact materials
Carefully selected high-conductivity Contacts Metals Welding materials ensure maximum current transmission efficiency.
02
Interface optimization
The interface between the silver brazing filler metal and the Electrical Contact Kits materials undergoes special treatment to ensure maximum metallurgical bond strength.
03
Environmental compliance
Employs an environmentally friendly brazing filler metal formula that meets international environmental standards, ensuring Welding with Contacts sustainability.
04
Detailed Demonstration: Witnessing Perfect Fusion at the Microscopic Level
Our commitment to quality is embodied in the microscopic world of the interface.
Macromorphological Morphology of the Weld: The brazing fillet is continuous, full, and smooth, with a uniform concave rounded transition, indicating that the brazing filler metal has good fluidity and sufficient wetting of the base metal.
Metallographic Microstructure: Under a metallographic microscope, the brazed weld microstructure is dense and uniform, free of any cracks, pores, or inclusions. A clear, straight, and firmly bonded diffusion bonding band is formed between the brazing filler metal and the base metal.
Elemental Line Scan Analysis: Elemental line scanning using an electron probe microanalysis (EPMA) clearly shows a gentle gradient distribution of elements such as silver and copper at the interface. This indicates that sufficient atomic interdiffusion occurred during brazing, forming a strong metallurgical bond, rather than simple mechanical adhesion.
Component Integrity: The completed brazed assembly is cleaned and processed as a whole, with a clean appearance, free of oxide spots and flux residue, and can be directly used in your automated assembly process for Silver solder sheet.
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