Explanation
① materials added to form slag during steelmaking. The most important are lime and rough stone. Lime is used for dephosphorization and desulfurization, and fluorite is added to reduce the melting point and viscosity of slag with high alkalinity, improve the flow ability of slag, and accelerate the reaction rate of steel slag. dolomite and synthetic slagging materials, high basicity sintering and pellets are also used in converter sleelmaking steelmaking. ② mineral materials added to the coating or welding flux of electrode. During weld, molten slag is formed to protect liquid metal and metallurgical reaction. According to the composition of weld slag, it can be divided into three categories: the first category is salt slag, which has little oxidation and is mainly used for weld aluminum, titanium and other active metals and their alloy. The second type is salt oxide slag, which is mainly used for weld alloy steel and high temperature alloy. The third type is oxide slag, which is mainly used for weld low-cardon steel and low alloy steel.
Classification
No classification at present.