High-strength cold rolled steel sheet and process for producing the same
    7.
    发明授权
    High-strength cold rolled steel sheet and process for producing the same 有权
    高强度冷轧钢板及其制造方法

    公开(公告)号:US07559997B2

    公开(公告)日:2009-07-14

    申请号:US10496433

    申请日:2003-06-23

    摘要: The invention provides a high strength cold rolled steel sheet comprising ferrite phases and second phases, in which the mean grain size of the ferrite phases is 20 μm or less, the volume fraction of the second phase is 0.1% or more to less than 10%, the absolute value |Δr| of in-plane anisotropy of r value is less than 0.15, and the thickness is 0.4 mm or more. The high strength cold rolled steel sheet of the present invention has a tensile strength of 370 to 590 MPa, and has excellent stretchability, dent resistance, surface precision, secondary working embrittlement, anti-aging, and surface appearance, therefore it is suitable for outer panels of automobile.

    摘要翻译: 本发明提供一种包含铁素体相和第二相的高强度冷轧钢板,其中铁素体相的平均粒径为20μm以下,第二相的体积分数为0.1%以上且小于10% ,绝对值| Deltar | 的r值的面内各向异性小于0.15,厚度为0.4mm以上。 本发明的高强度冷轧钢板的拉伸强度为370〜590MPa,拉伸性,耐凹陷性,表面精度,二次加工脆性,耐老化性,表面外观优异,因此适用于外部 汽车面板

    Coupling structure and method of resin moldings
    8.
    发明授权
    Coupling structure and method of resin moldings 失效
    树脂模具的耦合结构和方法

    公开(公告)号:US5131778A

    公开(公告)日:1992-07-21

    申请号:US653866

    申请日:1991-02-08

    摘要: A coupling structure and a method of coupling resin structures wherein a first member is coupled with a thermoplastic second member through a coupling force produced by constricting the volume of the resin during molding and/or the generation of an undercut structure. The undercut structure results from the deformation of a projection member caused by the flow pressure and temperature of the resin. A recess is provided in one of the members. The recess is indented in the laying direction. On the other member, a projection is provided which enters the recess. The coupling of the two members is therefore simple and does not require the use of a subsidiary material. Additionally, when an undercut structure is formed, extremely strong coupling is obtained. Since the undercut is formed by deformation of the projection, no undercut structure is required to be formed on the die, so that no extra cost or burden has to be forced on the die.

    摘要翻译: 耦合结构和耦合树脂结构的方法,其中第一构件通过在模制期间收缩树脂的体积和/或产生底切结构而产生的耦合力与热塑性第二构件联接。 底切结构是由于树脂的流动压力和温度引起的突出部件的变形。 在其中一个构件中设置有凹部。 凹槽在铺设方向上缩进。 在另一个构件上,提供进入凹部的突起。 因此,两个构件的联接是简单的,并且不需要使用辅助材料。 此外,当形成底切结构时,获得极强的耦合。 由于底切是通过突起的变形而形成的,因此不需要在模具上形成底切结构,因此不需要在模具上施加额外的成本或负担。