Steel sheet for tension mask, making method thereof and tension mask
    2.
    发明申请
    Steel sheet for tension mask, making method thereof and tension mask 失效
    用于张力罩的钢板,其制造方法和张力罩

    公开(公告)号:US20020070653A1

    公开(公告)日:2002-06-13

    申请号:US09929850

    申请日:2001-08-14

    申请人: NKK CORPORATION

    IPC分类号: H01J029/07

    摘要: The present invention relates to a method of making a steel sheet for a tension mask, comprising the steps of: hot rolling a steel consisting essentially of, by weight %, C: less than 0.1%, Si: 0.05% or less, Mn: 0.4 to 2%, P: 0.03% or less, S: 0.03% or less, sol.Al: 0.01% or less, N: 0.010% or more, and the balance of Fe; and annealing the cold rolled steel sheet, followed by a secondary cold rolling at a reduction rate of 35% or higher. The steel sheet produced by this method shows excellent creep resistance during blackening treatment and excellent magnetic shielding property with an anhysteretic permeability of 3400 or more at a DC bias magnetic field of 0.35 Oe, and therefore causes no color-deviation when applied to the tension mask.

    摘要翻译: 本发明涉及一种制造张力掩模用钢板的方法,其特征在于,包括以下步骤:将基本上以C:小于0.1%,Si:0.05%以下的C: 0.4〜2%,P:0.03%以下,S:0.03%以下,sol.Al:0.01%以下,N:0.010%以上,余量为Fe; 对冷轧钢板进行退火,然后以35%以上的还原率进行二次冷轧。 通过该方法制造的钢板在0.35Oe的直流偏置磁场下显示出优异的抗蠕变性,并且在0.35Oe的直流偏置磁场下具有优异的磁阻屏蔽性,其具有3400以上的非磁滞渗透性,因此当施加到张力掩模时不会产生色差 。

    Steel sheet for heat shrink band
    3.
    发明申请
    Steel sheet for heat shrink band 审中-公开
    热收缩带用钢板

    公开(公告)号:US20020139450A1

    公开(公告)日:2002-10-03

    申请号:US10056153

    申请日:2002-01-24

    申请人: NKK CORPORATION

    IPC分类号: C22C038/00 C22C038/02

    摘要: The present invention provides a steel sheet for a heat shrink band, containing, by mass %, 0.005% or less of C, 0.5 to 4% of Si, 2% or less of Mn, 0.2% or less of P, 0.04% or less of S, 0.2% or less of sol.Al, 0.01% or less of N, 0.0003 to 0.004% of B, 0.005% or less of O, and 0.002 to 0.1% of Sb, the balance being substantially formed of Fe, or a steel sheet for a heat shrink band further having a ratio of content of B to content of N (B/N) in the range from 0.2 to 1. This steel sheet realizes a heat shrink band having high strength and sufficient magnetic shielding properties.

    摘要翻译: 本发明提供一种热收缩带用钢板,以质量%计含有C:0.005%以下,Si:0.5〜4%,Mn:2%以下,P:0.2%以下,0.04%以下 少量的S,0.2%以下的sol.Al,0.01%以下的N,0.0003〜0.004%的B,0.005%以下的O和0.002〜0.1%的Sb,余量基本上由Fe形成, 或进一步具有B含量与N含量(B / N)的比例在0.2〜1范围内的热收缩带钢板。该钢板实现了强度高,磁屏蔽性能充分的热收缩带 。