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公开(公告)号:US4468947A
公开(公告)日:1984-09-04
申请号:US335034
申请日:1981-12-28
申请人: Tooru Takeda , Masakatsu Hayakawa , Yasuo Inoue
发明人: Tooru Takeda , Masakatsu Hayakawa , Yasuo Inoue
CPC分类号: B21C3/02 , B21C25/025 , B21C3/18
摘要: A die is described, comprising a die body and a steel case, characterized in that: a die body made of a silicon nitride ceramic or a silicon carbide ceramic is shrink fitted or force fitted into a steel case wherein an optional wide recess may be cut in the inner surface of the bottom of said steel case along a corner where the bottom and the inner wall of said steel case meet.
摘要翻译: 描述了一种模具,其包括模具主体和钢壳体,其特征在于:由氮化硅陶瓷或碳化硅陶瓷制成的模具体被收缩配合或强制装配到钢壳体中,其中可以切割可选的宽凹槽 在所述钢壳的底部的内表面沿着所述钢壳的底壁和内壁相交的角部。
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公开(公告)号:US4993174A
公开(公告)日:1991-02-19
申请号:US511429
申请日:1990-04-23
CPC分类号: A43C15/005
摘要: A ceramics spike pin is provided with a pin body having a horizontal cross section of a substantially circular shape, which pin body is provided with a rounded free end portion having a predetermined radius of curvature and a connecting base portion having a predetermined radius of curvature, and a horizontally expanded base connected to the connecting base portion, wherein a diameter (d) of the connecting base portion in horizontal cross section, the radius of curvature(r) of the connecting base portion, and a maximum diagonal length (D) of the horizontally expanded base satisfy the relationship of 0
摘要翻译: 陶瓷尖钉设置有具有大致圆形形状的水平截面的销体,该销体设置有具有预定曲率半径的圆形自由端部和具有预定曲率半径的连接基部, 以及与所述连接基部连接的水平膨胀基部,其中,所述连接基部的水平截面的直径(d),所述连接基部的曲率半径(r)和所述连接基部的最大对角线长度(D) 水平扩展的基座满足0
/ = 1.36之间的关系。 因此,可以大大减轻应力集中,提高耐冲击性,从而提高耐久性。
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