| 摘要 |
FIELD: metallurgy; may be used in pickling of stainless steel. SUBSTANCE: stainless steel to be pickled is placed into bath with temperature maintained from 30 to 70 C and having the following initial composition, g/l: H<SB>2</SB>SO<SB>4</SB>, at least 150; Fe , at least 15; HF, at least 40; H<SB>2</SB>O<SB>2</SB> (added with known stabilizers), 1-20; wetting agents; polishing agents; inhibitors of acid corrosion. Supplied continuously to bath is air with flow rate of at least 3 cu.m/h per cu.m of bath and amount of stabilized H<SB>2</SB>O<SB>2</SB> regulated to produce bath redox potential equal to or above 250 mV. EFFECT: reduced expenditures; improved ecology, and increased quality of pickling. 11 cl, 3 dwg, 10 tbl
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