The principle of welding is based on solid bonding between metals, and the specific formation process involves several key aspects.

First, the metal at the connection site is heated to a molten state, which is called melting core. When the temperature is high enough, the surface tension of the material being welded is reduced, allowing the molten metal (solder) to wet the substrate and solidify to form a strong contact as the temperature decreases.

Welding process flow

The development of the welding process requires consideration of many factors, including the nature of the material to be welded, the choice of welding method, and the structural type and welding performance requirements of the weldment. Generally speaking, the welding process includes the following steps:

Generally speaking, the welding process includes the following steps

Welding method selection: Select the appropriate welding method according to the specific situation, such as hand arc welding, submerged arc welding, argon tungsten arc welding, etc.

Welding standard specification and process

Welding standards and processes are important guarantees to ensure the welding quality during the production and installation of steel structures. The following is a summary of the relevant pages: