FIELD: metallurgy; chemical-thermal treatment of articles.
SUBSTANCE: proposed method includes successive case-hardening and chromizing in fluidized layer. For case-hardening of articles use is made of mixture containing the following components, mass-%: charcoal, 5-30; water, 5-10; the remainder being corundum. Chromizing is carried out in mixture containing the following components, mass-%: metallic chromium, 0.8-12; ammonia chloride, 0.008-0.16; the remainder being corundum. In particular cases, case-hardening is carried out in solid carburizer at temperature of 900-1000°C continued for 90-240 min and chromizing is carried out at temperature of 900-950°C for 60-240 min.
EFFECT: increased saturating capacity; reduced duration of process; enhanced wear resistance and corrosion resistance of steel parts.
2 cl, 1 tbl,, 1 ex
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