| 摘要 |
FIELD: production and (or) treatment of fibrous masses. ^ SUBSTANCE: grinding member is made by casting steel, quenching it and subjecting it to heat treatment. Grinding member is made of alloy with next chemical content, mass %: carbon, 2.7 -3.2; silicone, 0.5 - 1.0; manganese, 0.7 -1.2; chrome, 21.0 -26.0; vanadium, 3.0 -6.0; nickel, no more than 0.5; molybdenum, no more than 0.5; iron and impurities, the balance. ^ EFFECT: increased useful life period of grinding discs. ^ 5 cl, 1 tbl |
