What Are The Welding Methods Of Galvanized Electric Welding Mesh？
December 12, 2022
What Are The Welding Methods Of Galvanized Electric Welding Mesh？
High quality galvanized electric welding mesh selection of high quality low carbon wire, through automatic precision and accurate mechanical equipment spot welding processing forming, the use of zinc dipping process surface treatment, conventional British standard production, smooth and neat net surface, solid and uniform structure, good overall performance.
The welding of galvanized electric welding mesh is divided into three categories: fusion welding, pressure welding and brazing.
High quality galvanized welding mesh fusion welding is the workpiece interface heating to the melting state in the welding process, without pressure to complete the welding method, to form a solid and uniform welding mesh. During fusion welding, the heat source will quickly heat and melt the interface of the two workpieces to be welded to form a molten pool. The molten pool moves forward with the heat source and forms a continuous weld after cooling, which connects the two workpieces into one. In the process of fusion welding, if the atmosphere is in direct contact with the hot molten pool, the oxygen in the atmosphere will oxidize the metal and various alloalloy elements. Atmospheric nitrogen, water vapor, etc., into the molten pool, but also in the subsequent cooling process in the weld formation of pores, slag inclusion, cracks and other defects, deteriorating the quality and performance of the weld. In order to improve the welding quality, people have developed various protection methods. For example, gas protection arc welding is to use argon, carbon dioxide and other gases to isolate the atmosphere, in order to protect the welding arc and molten pool rate; For example, when steel welding, adding titanium-iron powder with high affinity for oxygen to the electrode skin for deoxygenation can protect the beneficial elements manganese and silicon in the electrode from oxidation into the molten pool, and obtain high-quality weld after cooling.
High quality galvanized electric welding mesh pressure welding is under pressure conditions, so that two workpieces in the solid state to achieve atomic bonding, also known as solid state welding. The commonly used pressure welding process is resistance butt welding. When the current passes through the connection end of the two workpieces, the temperature rises due to the large resistance. When heated to the plastic state, the connection becomes one under the action of axial pressure. The common feature of various pressure welding methods is the application of pressure without filling material during the welding process. Most pressure welding methods such as diffusion welding, high frequency welding, cold pressure welding and so on have no melting process, so there is no beneficial alloying element burning like fusion welding, and harmful elements into the weld problem, thus simplifying the welding process, but also improve the welding safety and health conditions.
Galvanized welding mesh brazing is the use of metal materials lower than the melting point of the workpiece as the solder, the workpiece and the solder heated to a temperature higher than the melting point of the solder, lower than the melting point of the workpiece, the use of liquid solder wetted workpiece, fill the interface gap and the workpiece to achieve mutual diffusion between atoms, so as to achieve the welding method. Form a solid and uniform welding net.
