公开(公告)号：US4609412A

公开(公告)日：1986-09-02

申请号：US704804

申请日：1985-02-25

申请人： Morinori Kamio ,  Masahiro Tsuji ,  Susumu Kawauchi ,  Jun Ono ,  Hideki Isayama ,  Akihiko Nishimoto ,  Yoshiharu Miyawaki ,  Osamu Nozoe ,  Koji Iwase

发明人： Morinori Kamio ,  Masahiro Tsuji ,  Susumu Kawauchi ,  Jun Ono ,  Hideki Isayama ,  Akihiko Nishimoto ,  Yoshiharu Miyawaki ,  Osamu Nozoe ,  Koji Iwase

IPC分类号： C22C38/00 ,  C22C38/06 ,  C21D9/52

CPC分类号： C22C38/06 ,  C22C38/001

摘要： An Al-killed cold-rolled steel sheet with excellent demagnetization characteristics is provided which is substantially consisted of 0.005% or less C; from 0.05 to 0.50% Mn; 0.010% or less S; from 0.01 to 0.08% Sol.Al; 0.0050% or less N; wherein Mn %/S %.gtoreq.7 and (Sol.Al % - 0.003%)/N %.gtoreq.6; and the remainder iron and inevitable impurities. A shadow mask made of such Al-killed cold-rolled steel sheet and a color television receiver using the same exhibit a very excellent function. A preferred process for producing such an Al-killed cold-rolled steel is also provided, said process being characterized in first obtaining a steel or a specific composition by the use of a vacuum degassing apparatus and then subjecting the steel to sequential steps of hot rolling, cold rolling, decarburization-annealing, and cold rolling.

摘要翻译： 提供了具有优异退磁特性的Al杀死冷轧钢板，其基本上由0.005％以下C组成; 0.05〜0.50％的Mn; 0.010％以下S; 0.01〜0.08％Sol.Al; 0.0050％以下N; 其中Mn％/ S％> / = 7和（Sol.Al％-0.003％）/ N％> = 6; 剩余的铁和不可避免的杂质。 由Al杀死的冷轧钢板制成的荫罩和使用其的彩色电视接收机显示出非常优异的功能。 还提供了生产这种Al杀死冷轧钢的优选方法，所述方法的特征在于首先通过使用真空脱气装置获得钢或特定组成，然后对钢进行依次的热轧步骤 ，冷轧，脱碳退火和冷轧。