公开(公告)号：US5665178A

公开(公告)日：1997-09-09

申请号：US596996

申请日：1996-02-05

Applicant: Michiro Komatsubara ,  Masayoshi Ishida ,  Kunihiro Senda

Inventor： Michiro Komatsubara ,  Masayoshi Ishida ,  Kunihiro Senda

IPC: C21D8/12 ,  C21D11/00 ,  H01F1/14

CPC classification number: C21D8/1272 ,  C21D11/00 ,  C21D8/1244 ,  C21D8/1283

Abstract: A method of manufacturing a grain-oriented silicon steel sheet having excellent and stable magnetic characteristics which includes the steps of subjecting a silicon steel slab to hot rolling to form a hot-rolled sheet, cold rolling the hot-rolled sheet at least once with intermediate annealings between successive cold rollings to form a cold-roiled sheet, and thereafter primary recrystallization annealing the cold-rolled sheet to form a primary recrystallized sheet. The primary recrystallized sheet is then final finish annealed, which includes a secondary recrystallization annealing and a purifying annealing during which the steel slab is coated with an annealing separator. The coercive force of the primary recrystallized steel sheet is controlled to a predetermined range before the start of secondary recrystallization.

Abstract translation: 一种制造具有优异且稳定的磁特性的晶粒取向硅钢板的方法，包括以下步骤：对硅钢板进行热轧以形成热轧板，用中间体将热轧板冷轧至少一次 在连续冷轧之间进行退火以形成冷轧板，然后对冷轧板进行一次再结晶退火以形成一次再结晶薄板。 然后将一次再结晶薄板进行最终精加工退火，其中包括二次再结晶退火和纯化退火，在此期间钢板涂覆有退火分离器。 初次再结晶钢板的矫顽力在二次再结晶开始前控制在规定的范围。