Process for producing chromium alloy cast steel shots
A production process and technology for casting steel shot, applied in the field of metal particle production process, can solve the problems of poor surface finish of steel shot, high melting point of Cr, poor fluidity, etc., and achieve guaranteed speed, strong hardenability and good wear resistance. Effect
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[0012] 1. Put 900 kg of GCr15 bearing steel corner waste into a 1.5-ton intermediate frequency furnace, then add 600 kg of low-carbon steel, heat to 1680-1700 ° C for melting, and add 15 kg of manganese 10-5 minutes before the furnace is melted , then add 15 kg of silicon, take it out of the furnace, pour it into the tundish, and transport it to the pouring machine by the crane, pour the molten steel into the pouring machine, and form it by centrifugal casting to obtain steel shots of different sizes.
[0013] 2. After the smelted and poured steel shot is taken out from the pool, put it into a heating furnace with a temperature of 400-500°C to dry to remove moisture.
[0014] 3. Put the dried steel shot into a six-layer vibrating screen for vibratory screening, and roughly divide it into 0.1-0.8 as a class, 0.8-1.4 as a class, 1.4-2.0 as a class, and 2.0-2.8 as a class.
[0015] 4. Put the coarsely divided steel shot into the tempering device. The tempering temperature is betw...
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