| 摘要 |
ferrous metallurgy, particularly, production of electrical-sheet steel for manufacture of magnetic circuits, relay systems and accelerating generators. SUBSTANCE: method includes melting of metal in steel-melting unit; vacuum treatment of unreduced steel up to carbon content of 0.01%; modification with phosphorus and aluminum to obtain their content is steel in amount of 0.04-0.10 and 0.1-0.3%, respectively; subsequent continuous casting; hot rolling; coiling of strips; cold rolling in one or two stages and heat treatment. Temperature of finishing of hot rolling is set at level exceeding temperature of point A1 by 50-80 C. Temperature of strip coiling is maintained at 30-60 C below temperature of point A1. In cold rolling in two stages, degree of deformation at the second stage equals 10-15%. EFFECT: provision of qualitative new level of magnetic properties of steel, improved stamping ability, increased stability of stamping tools, higher productivity of stamping transfer lines, higher space factor of magnetic circuit. 2 cl, 2 tbl, 3 ex
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