News
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Contact Fixing on Plate: Riveting vs. Welding – Process Comparison and Selection Guide
In the manufacturing of contact assemblies for relays, contactors, and switches, the method used to fix the contact onto the plate (carrier or shunt) directly determines the product’s electrical and mechanical reliability. The two most prevalent processes are riveting (using solid or compos...Read more -
The “Invisible Guardian” in the Thermostat
Don’t underestimate this small stamped part; it is the “heart” of the thermostat that enables precise temperature control—the hot bimetallic strip stamped part. Common materials for bimetallic strips include manganese-nickel-copper alloys, nickel-chromium-iron alloys, and nicke...Read more -
Properties & Process of Electrical AgCdO Contact Tips
In low-voltage electrical applications, silver-cadmium oxide (AgCdO) electrical contact tips have long been regarded as a ‘universal material’ due to their unique physical and chemical characteristics. This material offers low, stable contact resistance, good electrical and thermal conductivity, ...Read more -
How Silver Price Volatility Impacts Switches, Relays & Contactors — And How ZHJ Helps You Stay Stable
In 2026, global silver prices are expected to continue to show strong volatility, driven by supply tightness, industrial demand growth, and macroeconomic fluctuations. For manufacturers of electrical components — especially switches, relays, and contactors — silver is not just a raw material but ...Read more -
Basic Requirements for Contact Materials
To extend the service life of the product, materials used for electrical contacts must possess the following good properties. 1. Good electrical and thermal conductivity 2. Good anti-welding performance; 3. High resistance to electrical wear; 4. Good mechanical properties and weldability; 5. Chem...Read more -
Welding process for contact assembly — resistance welding
The welding quality of contact assemblies directly determines the performance of low-voltage electrical switch products. In the welding process of low-voltage electrical contact assemblies, the appropriate selection of metal electrode materials and their structural design are essential conditions...Read more -
Silver Alloy Materials and Contacts: Beyond Tradition, Ushering in a New Era of High-Performance Applications
In industrial manufacturing and high-end applications, material selection often determines the final quality and core competitiveness of a product. Silver alloys, through scientific formulation and advanced metallurgical processes, combine the natural advantages of silver with the properties of o...Read more -
The Indispensable Role of Silver & Silver Alloy Materials in the AI Industry
Shanghai ZHJ Technologies Empowers AI Innovation with High-Performance Precious Metal Solutions As artificial intelligence reshapes global industry and digital infrastructure, the demand for ultra-reliable, high-efficiency electronic components has never been greater. Silver and silver alloy mat...Read more -
SHZHJ Delivers Precision Welding, Riveting, and Stamping Solutions
For our welded assemblies, SHZHJ leverages advanced process control and strict quality standards to ensure every weld point delivers excellent electrical and mechanical performance. Whether applied in switches, relays, or other conductive systems, our welded assemblies achieve low contact resista...Read more -
Looking for Silver Contact Rivets You Can Rely On?
As we know that in electrical switches and relays, Silver rivet contact with poor quality leads to inconsistent performance. But SHZHJ making rivets you can trust, for batch after batch, in high volumes, and complex designs. Our buttom rivet are made with high-precision equipment that ensures sol...Read more -
A must-read guide for Silver contacts purchaser to avoid pitfalls
The raw materials for electrical contact components are typically silver alloys/copper/tungsten, which are expensive and account for a large portion of the total price. Therefore, some suppliers often resort to unfair means to win bids. Exceeding the standard draft angle. The typical draft ang...Read more -
Characteristics and Applications of Tungsten-Copper Alloy
Tungsten-copper alloy is a high-performance composite material that combines the advantages of both tungsten and copper. Tungsten has a melting point as high as 3,410°C and a density of 19.34 g/cm³, while copper has a melting point of 1,080°C and a density of 8.89 g/cm³. Tungsten-copper alloy exh...Read more