Abstract
65Mn spring steel is mainly used for rotary blade which is a vulnerable part of farming machinery. The experiment of the wear-resistance property for 65Mn spring steel under different heat treatments is conducted. The results are discussed based on the regression orthogonal design. The wear-resistance property of 65Mn steel has been discussed by applying diverse heat treatment technology and the optimum parameters of heat treatment for the best anti-wear property are obtained through experiments. The influence of the parameters on anti-wear property is studied by applying the regression orthogonal design. The relation between the wear mass loss and diverse heat treatment parameters has been given by using planar and contour figure. The optimum heat treatment parameter for maximum anti-wear ability is obtained as following: 852.64 for quenching temperature, 18.36min for quenching time, and 145.44 for tempering temperature, respectively.
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