FIELD: mechanical engineering. SUBSTANCE: articles are heated to austenization temperature and sustained. Then they are immersed into water at rate 0.03-0.04 m/s, end having less content of alloying elements being disposed lower. Sustaining time is 6-10 min. Then articles are removed off water, the process is carried out in the same position as mentioned above and at the same rate. Then cooling in oil to 100-150 C takes place. EFFECT: produces uniform properties of article along its lengthwise.
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