The manufacture process of the electrical contacts

Since the materials used in the vacuum contact（electrical contacts) are binary and above alloy materials, and the main elements are required to have pseudo alloy characteristics, powder metallurgy and vacuum (controllable atmosphere) melting are adopted in the production and manufacturing process.(electrical contacts)

Infiltration method of the electrical contacts
Infiltration method is a common method to produce refractory metal and low melting point metal pseudoalloy. The high melting point metal powder is pressed and pre sintered (or powder sintered) to form a porous skeleton, and then the metal with low melting point is placed above or below the skeleton. At a temperature higher than the melting point of the metal, it melts and infiltrates into the porous skeleton metal to fill the gap, so as to obtain a dense product.（electrical contacts)