FIELD: metallurgy.
SUBSTANCE: invention relates to metallurgy filed, particularly to surface treatment of steel products from high-speed steels. Cementation method of high-speed steel in hard carburiser includes heating up to saturation temperature, isolation at this temperature with feeding 20-25%-water solution of ethanoic acid at a feeding rate 0.25-1.0 ml of solution for 100 g carburiser per hour and cooling on air.
EFFECT: reduction of coefficient of linear expansion.
1 dwg, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR CARBURIZING IN SOLID CARBURIZING AGENT | 0 |
|
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| PROCEDURE FOR THERMAL TREATMENT OF HIGH PURITY IRON | 2009 |
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| METHOD OF FAST CARBURIZING OF STEEL | 2004 |
|
RU2283893C2 |
