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Home » FAQs » Two methods of quenching and tempering heat treatment are introduced
Two methods of quenching and tempering heat treatment are introduced
2017-02-27 10:28:11

 In order to save costs, cost savings, there are a lot of manufacturers due to mechanical processing conditions and funding constraints, no way to the various parts of the equipment to regulate the professional heat treatment. It is often used to repair the damaged, small or scrapped, etc.. In this paper, two methods of quenching and tempering heat treatment are introduced:

1, double quenching: finishing well shaft keyway step with gas torch is oxygen acetylene flame to heat the quenching temperature to 820 DEG C~840 DEG C, after quenching and tempering, and stay for about 10 minutes, then add 10% salt water cooling 7~8 seconds, the final cooling to room temperature in the air.
2: after high temperature tempering quenching cooling to the normal temperature of the shaft keyway step with oxygen acetylene flame heating to a high temperature tempering temperature of 500 DEG C~540 DEG C for 10 minutes, then cooling to room temperature in the air.

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