Steel Searcher-Welding electrode is composed of welding core and coating. Welding Electrode is in the metal core outside the coating (coating) evenly to the heart of the pressure coated on the core. The type of welding electrode is different, the core is different. The welding core is the metal core of the electrode. In order to ensure the quality and performance of the weld, the content of the metal elements in the welding core have strict regulations, especially the content of harmful impurities (such as sulfur, phosphorus, etc.), should be strictly limited and better than the base material.
Ensure stable arc combustion to ensure normal welding process.
Protect the arc and molten pool by using the gas generated after the coating reaction, and prevent harmful gases in the air (such as nitrogen, oxygen, etc.) from invading the molten pool.
After the coating is melted, the slag is formed to cover the weld metal on the surface of the weld, so that the weld metal is slowly cooled, which helps to escape the gas, prevent the formation of pores and improve the microstructure and performance of the weld
After melting, various metallurgical reactions will be carried out, such as deoxidation, sulfur removal, phosphorus removal, etc., so as to improve the quality of welding seam and reduce the burning loss of alloy elements