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Effects of induction quenching no tempering on mechanical properties of parts
Source： Time：2021-05-11 16:53:01 views：
Zhang Shiqi and so on have carried out the effect of inductive quenching parts without tempering the fatigue life. Tests show that there is no tempering after induction quenching, the residual pressure stress of the workpiece can be retained, and the fatigue strength of the workpiece can be improved, and thus not refurbishment can improve product performance and save energy.
Zhang Shiqi and so on have carried out the effect of inductive quenching parts without tempering the fatigue life. Tests show that there is no tempering after induction quenching, the residual pressure stress of the workpiece can be retained, and the fatigue strength of the workpiece can be improved, and thus not refurbishment can improve product performance and save energy. Japanese scholars proposed the cause of the fatigue intensity of the quenching parts, which is due to the rapid heating quenching tissue and surface has residual stress, and the sensing quenching member is low-temperature (180 ~ 200 ° C) than only induction quenching Sex high results. Regardless of the frequency, the amount of wear is reduced in the amount of 150-200 ° C, which has reduced the residual pressure stress, and the tempering temperature is increased, and wear The amount increases, which is due to the reduction in hardness.
Therefore, induction quenching parts, any required quenched layer has abrasion resistance and the hardening layer to withstand friction (containing ground), it must be low-temperature tempering after quenching; in turn, the hardened layer is not affected by friction, low temperature back The need for fire can be considering according to other conditions. Tractor track packages, rear bridge shafts and other parts are not refurbished in actual production.
Therefore, induction quenching parts, any required quenched layer has abrasion resistance and the hardening layer to withstand friction (containing ground), it must be low-temperature tempering after quenching; in turn, the hardened layer is not affected by friction, low temperature back The need for fire can be considering according to other conditions. Tractor track packages, rear bridge shafts and other parts are not refurbished in actual production.
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