Process for preparing low-alloy wear-resistant steel without high temperature heat treatment
A technology of high temperature heat treatment and preparation process, applied in the production field of low-alloy wear-resistant cast steel, can solve the problems of high energy consumption, high mechanical properties, low energy consumption, etc., to reduce pollution, avoid oxidative burning loss, and reduce energy consumption and the effect of labor
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[0010] The specific steps of the preparation process of the high-temperature heat treatment-free low-alloy wear-resistant cast steel of the present invention are as follows:
[0011] (a) Inject molten steel qualified for smelting into the mold to control the solidification temperature of the casting; the molten steel qualified for smelting contains elements that can greatly shift the heat treatment C curve to the right, and the trace or small amount of elements is boron or titanium or vanadium Or one or more of them; the addition of trace or small amount of elements accounts for the weight percentage of molten steel: the addition of boron is at 0.003-0.004%, the addition of titanium is at 0.2-0.4%, and the addition of vanadium is at 0.2-0.6%.
[0012] (b) When the temperature of the casting drops to 900-850°C, take the casting out of the mold and quench it into water. Depending on the wall thickness of the casting and the cooling rate of the mold, it is most appropriate to co...
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