What Is A Welding Machine

Welding is the process of using various fusible alloys (soldering tin) to connect metal components. The melting point of solder is lower than that of the material being soldered, so that the component will end the welding process through intermolecular contact on its surface without being melted.
Welding can be divided into soft welding and hard welding, with soft welding temperatures below 450 ℃ and hard welding temperatures above 450 ℃. Hard welding is usually used for metals such as silver, gold, steel, copper, etc. Its welding points are much stronger than soft welding, and its shear strength is 20-30 times that of soft welding. The above two types of hot connections usually use the term welding, as in both cases, molten solder is written into slender gaps on the clean and close solid metal surfaces of the two devices to be installed.
Welding ensures the continuity of the metal. On the one hand, two types of metals are connected to each other through bolt connections or physical attachments, appearing as a robust metal entity. However, this connection is discontinuous, and sometimes if there is an oxide insulation film on the surface of the metal, they may even physically contact each other. Another drawback of mechanical connection compared to welding is the continued oxidation of the contact surface, which leads to the addition of resistance. In addition, vibration and other mechanical impacts can also cause joints to loosen. Welding eliminates these difficulties, with no relative movement of the welding area and no oxidation of the contact surface. The continuous conductive method can be persisted. Welding is the fusion process between two metals. In the molten state, solder will dissolve some of the metals in contact with it, and there is often a thin layer of oxide film on the surface of the welded metal that cannot be dissolved by solder. Flux is used to remove this layer of oxide film.