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rolling equipment
Heat treatment of steel rolling equipment of the people to manage the most important way for iron and steel materials, organization, regulation of iron and steel materials mining potential of iron and steel materials. The basic rolling equipment of heat treatment process of annealing, normalizing, quenching and tempering.Annealing is heated to steel phase or part of phase transition temperature, thermal insulation for a period of time, a heat treatment process and slow cooling.Normalizing the steel is heated to a temperature above the phase change, heat preservation time after a heat treatment process of cooling in the air. The steel quenching is heated to transformation or partial transformation temperature, holding time, a rapid cooling heat treatment process. Is tempering after quenching steel, re heated to a certain temperature (below the phase transition temperature), heat preservation time, heat treatment and cooling. The above process can be combined to get the heat treatment process of composite, such as steel quenching, followed by high temperature tempering, quenching and tempering process of the composite said.
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