Electrical Tungsten Contact Rivets are a ubiquitous tungsten chemical product. Due to their excellent mechanical, thermal, and electrical properties, they are commonly used as switches in electrical equipment to connect or disconnect circuits.
Properties of Tungsten Contacts
Tungsten Rivets are contact points made primarily from metallic tungsten, thus possessing the physicochemical properties of metallic tungsten. Tungsten contacts exhibit high specific gravity (19.1 g/cm³~19.3 g/cm³), high hardness (71-74 HRA), high melting point, good impact toughness, low vapor pressure, low evaporation rate, and excellent arc resistance and melt resistance. Furthermore, with the continuous development of the global manufacturing industry, users have increasingly higher requirements for tungsten contacts, demanding a clean and neat appearance, fine and uniform grain size, and high straightness, concentricity, and roundness.
Factors Affecting Tungsten Contact Performance
Metallurgical defects in the tungsten billet;
Improper control of tungsten billet particle size;
Poor control of tungsten billet pressing and sintering;
Inappropriate processing technology design;
Parameter design and die repair issues of the rotary forging die, etc.
Applications of Tungsten Contacts
Motorcycle Horn Tungsten Rivets are commonly used in automotive (distributors, voltage regulators, horns, alarms), machine tool electrical components, various automatic switches, relays, switchgear, communication devices, alarms, and other electrical products.
Common Problems with Tungsten Contacts
How to determine whether a Tungsten Point Contact is normally open or normally closed?
Main contacts are mostly normally open, with high current-carrying capacity, and are often used for controlling motor starting, etc. Auxiliary contacts are mostly normally open and can be used in self-locking, signal transmission, and other circuits. Auxiliary normally closed contacts are used to achieve linkage in complex circuits, sometimes as motor interlocking.
Distinguishing between active and passive contacts: Active contacts are those that are energized and easily generate induced current or loop current; passive contacts are those that provide isolation and transmit control signals between different control circuits.
Identifying between silver and Horn Contact Wolfram: Under normal circumstances, silver contacts are silvery-white in appearance, while tungsten-copper contacts are yellow in appearance.
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Based on the above comprehensive analysis of tungsten contacts, our Electrical Tungsten Contact Rivets perfectly inherit the core advantages of tungsten material-high melting point, impact resistance, and oxidation resistance-while possessing the stable performance of a three-layer composite structure. They can precisely adapt to the circuit switching requirements of various equipment, such as automobiles, machine tool electrical components, and relays. Their excellent flatness, concentricity, and arc resistance effectively improve equipment operational stability and reduce the failure rate. We welcome customers to inquire and discuss cooperation at any time; we will provide you with professional product solutions.
