FIELD: metallurgy.
SUBSTANCE: nicotriding of parts is performed in mixture, containing charcoal carburiser, carbamid and Trilon-B. Nicotriding is carried out at 600-700°C with conditioning during 4-6 hours. Then contact copper coating is performed by means of holding parts in a 5-10% water solution of blue stone (CuSO4 5H2O) within 10-30 minutes. After that the parts are dried at 100-120°C during 45-60 minutes and working surfaces of parts are grinded in. In particular cases of this invention application copper coating of parts is carried out directly from the temperature of nicotriding, for example after their cooling up to 100-80°C or after their cooling up to an ambient temperature.
EFFECT: upgraded wear resistance of formed layers on working surfaces of steel friction pair parts due to improved tribological characteristics and contact strength.
4 cl, 5 dwg, 1 tbl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR NICOTYRATING OF STEEL PARTS AND TOOLS | 2003 |
|
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| COMPOUND FOR CARBONITRIDING OF ARTICLES MADE FROM ALLOYED STEELS | 2006 |
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| METHOD OF TREATMENT OF PRECISION PARTS FROM TITANIUM ALLOYS | 1993 |
|
RU2075536C1 |
| METHOD FOR HARDENING OF CUTTING AND FORMING TOOL FROM HEAT-RESISTANT CHROMIUM STEEL | 2001 |
|
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| METHOD FOR THERMOCHEMICAL TREATMENT OF ARTICLES, PREFERABLY PISTON PAIR DETAILS OF TRACTOR AND AUTOMOTIVE ENGINES | 2002 |
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| METHOD OF REINFORCEMENT OF TITANIUM ALLOY PARTS BY DIFFUSION SATURATION | 2013 |
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RU2550066C1 |
