Gongyi Xingnong Machinery Manufacturing Co., Ltd., a professional ball mill accessories manufacturer, specializes in the production of ball mill steel balls, ball mill liners, ball mill gears, ball mill bearings, ball mill couplings, jaw plates, hammer heads, ball mill eight-hole discs and other ball mill accessories. In addition, our company also produces dryer accessories, rotary kiln accessories, crusher accessories, conveyor accessories and other mineral processing equipment accessories, as well as ball mills, dryers, rotary kilns, aluminum ash equipment, steel slag equipment, ceramsite sand equipment, etc. The heat treatment of ball mill lining plate of mineral processing equipment refers to a process that uses the solid state transformation of iron-carbon alloy to change its internal structure through heating, insulation and cooling, so as to obtain the required performance. Therefore, it is necessary to discuss the heating, insulation, cooling and tempering processes of the heat treatment of ball mill lining plates.
The purpose is to select the best treatment process based on the chemical composition and usage requirements of the ball mill lining in order to obtain the ideal structure and performance.
The heat treatment process of ball mill lining plate mainly refers to a single solid solution treatment, that is, water toughening treatment. This heat treatment process is to heat high manganese steel to a temperature above 8 and keep it warm for a period of time to dissolve the carbides in the cast structure to obtain a single-phase austenite structure with basically uniform chemical composition. It is then dissolved in water and rapidly cooled to obtain supercooling. Austenitic solid solution structure.
The purpose of water toughening treatment is to ensure that the austenite homogenized ball mill lining casting is preserved intact during the water quenching process, so as to prevent new carbonization of the ball mill lining due to insufficient cooling rate when the temperature is above ℃. Materials precipitate or new particles appear unevenly. At this stage, special emphasis should be placed on the water temperature not exceeding ℃ during the treatment process. The lower the better. Although very low temperatures will bring greater stress, this is only suitable for a very small number of ball mills. The lining structure has an impact. Generally speaking, the faster the cooling rate, the better the water toughening effect.
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Xingnong specially introduces to you the heat treatment process of ball mill lining plate.