News
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SHZHJ in Berlin Showcasing the Best of Innovation
InnoTrans is the leading international trade fair for transport technology, showcasing future mobility. Every two years, it attracts the best railway industry to Berlin, at the 2024 edition, held from September 24 to 27. Sub-divided into the five trade fair segments Rail...Read more -
SHZHJ In InnoTrans
InnoTrans is the world’s largest trade fair focused on the rail transport industry. It is held every two years at the Messe Berlin exhibition center, which has outdoor standard gauge railway sidings that can be used to exhibit railway vehicles. InnoTrans has grown steadily in area and exhib...Read more -
Differences in material properties between AgNi and AgCdO.
One characteristic of the AgNi alloy contact is that when the temperature is extremely high, the mutual solubility of the two coexisting melts increases, causing the nickel particles of the AgNi alloy material to form a uniform and dispersed distribution, and melt a large amount of silver generat...Read more -
Preparation of AgWC Electrical Contacts
Under heavy and medium load conditions, in addition to silver tungsten (AgW) contacts as important components, electrical switches can also use silver tungsten carbide electrical contacts as core components. Silver tungsten carbide(AgWC) electrical contacts have good electrical conductivity, exce...Read more -
Why choose trimetal rivets?
Cost 1) Compared with solid rivets, trimetal rivets can significantly save the number of precious metal materials and reduce costs by using cheaper materials in non-critical parts while ensuring performance. For example, in some electrical switches, replacing solid rivets with trimetal rivets...Read more -
Silver-graphite Contacts
Silver graphite contacts are made by uniformly mixing silver powder and graphite powder, pressing, and sintering which are very suitable for mass production. They are mainly used for protection switches, such as miniature circuit breakers, leakage protection switches, or engine protection switche...Read more -
Best Quality Machining Parts
Manufacturing Equipment Machining: Includes five-axis CNC lathes, lathes, turning-milling composites, CNC three-axis and four-axis machining centers. Precision: tolerances within 0.01 mm, machining range φ1.5-φ40 mm, length up to 150 mm for metal parts. Stamping: 80-ton, 63-ton, and 45-t...Read more -
Why do terminals need tin plating?
It can prevent copper from forming “patina” in a humid environment to increase contact resistance and overheat the contact surface. After the surface of copper is plated with a layer of tin, it can prevent the oxidation of copper. Tin oxide conducts electricity well and will not caus...Read more -
SHZHJ — In-mold automatic welding and riveting
With the increasing diversification of functional requirements for stamping parts, as a professional and experienced electrical contact manufacturer, we take serving customers and meeting their needs as our development purpose. The management decided to invest a lot of money to set up a mold rese...Read more -
Powder metallurgy contact tips
The composition and quality of contact products prepared by powder metallurgy are easier to control than other process methods, ensuring the consistency of contact tips performance. The main materials include AgC, AgW, AgWC, etc. 1.AgC has high resistance to wel...Read more -
What Electrical Contacts Used in High Voltage DC Relay
As the executive component that controls the on and off of each high-voltage circuit, the high-voltage DC relay is an important guarantee for the safety of electric vehicles. It is also widely used in the photovoltaic and energy storage fields. As the core component of t...Read more -
Applications and advantages of copper tungsten
Tungsten-copper alloy combines the advantages of metal tungsten and copper. Among them, tungsten has a high melting point (the melting point of tungsten is 3410°C and the melting point of iron is 1534°C) and high density (the density of tungsten is 19.34g/cm3 and the den...Read more
