When the electronic and electrical appliances are opened and closed, the intersection point of mutual separation and contact is carried out. Because the metal conductor terminal is easy to produce instant heat and spark at the moment of contact, it is easy to produce oxidation and electrolysis in the multi-frequency process used, so silver contacts are required. Silver contacts include support parts made of copper materials and cladding parts made of silver materials. The supporting parts of the product include a contact part, a fixing part and a connecting part arranged concentrically in turn. The contact part and the fixing part of the product are arranged in a disk shape, and the connecting part of the product is arranged in a column shape. The outer diameter of the contact part and the connecting part of the product are smaller than the outer diameter of the fixed part. The covering part has a covering cavity from the contact part to the fixing part, and the supporting part of the product is clamped with the covering part. This kind of silver contact saves material, and people can timely replace and repair the cladding damaged by the arc, which is convenient for the sustainable use of silver contacts.

Silver contact

The silver contact comprises a connection body and a contact body arranged in a cylindrical body. The radius of the contact body of the product is greater than the radius of the connection body, and the center of the other end of the contact body is convex outward to form a convex surface. The convex surface of the product is provided with a silver coating, and the edge of the convex surface of the product is provided with a ring convex edge along the convex surface. The axial height of the convex surface of the product is greater than the axial height of the annular convex edge, and the product has the characteristics of contact stability, which can avoid bad contact or break.

A silver contact for easy assembly, including a silver contact body, the silver contact body of the product includes a main silver contact and a secondary silver contact, the main silver contact of the product is mainly composed of a circular tablelike contact plate and a connecting rod for connecting with parts with holes, the contact plate of the product is provided with a threaded through hole, one end of the connecting rod of the product is provided with an external thread connected with a threaded through hole thread, and the other end is arranged as a hollow tube. The tube wall of the hollow tube of the product is divided into a number of arc-shaped cards along its axis. One end of the auxiliary silver contact of the product is provided with a connecting rod suitable for the hollow tube, and the other end is provided with a contact end face. The product has the characteristics of simple structure, convenient assembly and wide popularization.

Silver contact structure of a contact system and a method for making them, relates to an improved technique for a contact point of a contactor or a circuit breaker. Structure: including static contact, static contact silver contact, moving contact silver contact and moving contact; There are raised points on the contact points of the static contact and the moving contact; The silver contact of the static contact and the silver contact of the moving contact have a pressed groove surface, and the groove surface of the silver contact of the static contact and the silver contact of the moving contact are welded together with the raised point of the static contact and the moving contact.

Production method:

(a) Machining the raised point on the contact point of the static contact and the moving contact;

(2) Press the groove surface above the silver contact of the static contact and the silver contact of the moving contact;

(c) The static contact silver contact and moving contact silver contact are welded to the static contact and moving contact respectively.

The silver contact of this product has high mechanical strength; When welding, it is easy to locate and accurate, easy to operate and high efficiency, and welding is more firm, which can make the current smooth through the contact, reduce the resistance and impedance, reduce the silver material, and reduce the cost.