发明名称 Spring steel superior in workability
摘要 A spring steel which is superior in both shaving properties and green drawing properties, which are important in spring production. A process for making the spring steel into wire rods for good springs. A rolled spring steel superior in workability characterized in that it has the following mechanical properties. Tensile strength &le; 1200 MPa 30% &le; reduction of area &le; 70% A process for producing a steel wire rod for springs from said spring steel, said process comprising drawing, shaving, and oil tempering, which are carried out sequentially, said drawing being optionally followed by prescribed treatment. <IMAGE>
申请公布号 EP1013780(A1) 申请公布日期 2000.06.28
申请号 EP19990125316 申请日期 1999.12.20
申请人 KABUSHIKI KAISHA KOBE SEIKO SHO 发明人 KURODA, TAKESHI;IBARAKI, NOBUHIKO;YOSHIHARA, NAO
分类号 C22C38/44;C21D8/06;C21D9/02;C21D9/52 主分类号 C22C38/44
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