Rare earth carburizing process using rolling furnace to treat screws
A screw and carburizing technology, applied in the field of metal surface carburizing treatment, can solve the problems of high equipment maintenance rate, long process time, low productivity, etc., and achieve the effect of reducing equipment maintenance rate, simple operation and improving productivity
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[0015] The rare earth carburizing process of screws is treated with a rolling furnace, which specifically includes the following steps:
[0016] (1) Configuration contains 0.2g / L cerium chloride, 0.3 / L lanthanum chloride aqueous solution, above-mentioned solution is stirred into refractory soil, is kneaded to ball, control contains 0.02g cerium chloride, 0.02g cerium chloride, 0.03 g of lanthanum chloride;
[0017] (2) Remove the oil on the surface of the screw;
[0018] (3) Put the screws into the rolling furnace, add 40-50 kg of screws for every 40-50 kg of screws, put in 2-3 refractory soil pellets equivalent to 100 grams, and under the protection of nitrogen, feed the carbon generated by the combustion of liquefied gas into the screws Inside, the temperature in the furnace is required to be 840-860 ° C, and the temperature is kept for 80 minutes;
[0019] (4) After the heat preservation in step (3), pour the screws in the rolling furnace into cold water, take them out of...
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