There are many kinds of rolls used for rolling processing of various metal materials. According to the hot and cold state of the rolled material, it can be divided into cold rolls and hot rolls; according to the different materials of the rolls, it can be divided into forged steel, cast steel, cast iron rolls, etc. .
According to the different hot and cold processing methods and the hardness and softness of the rolled metal, there are different requirements for the surface hardness of the roll. The specific hardness range is marked on the mechanical drawing of the roll production.
Because the rolls are generally relatively large, and it is not convenient to sample and test on the rolls, the hardness test of the rolls generally stipulates the Shore hardness test method.
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