公开(公告)号：US5445309A

公开(公告)日：1995-08-29

申请号：US988891

申请日：1992-12-10

申请人： Yonekazu Yamada ,  Yutaka Yoshino ,  Mitsuhira Kitada ,  Kazuo Seki

发明人： Yonekazu Yamada ,  Yutaka Yoshino ,  Mitsuhira Kitada ,  Kazuo Seki

IPC分类号： B29C65/20 ,  F16L47/26 ,  F16L47/34 ,  B23K101/04 ,  B23K20/00 ,  B29C65/02

CPC分类号： B29C65/20 ,  B29C66/5224 ,  B29C66/52241 ,  F16L47/26 ,  F16L47/34 ,  B29L2031/246 ,  Y10T29/49442

摘要： In a method for making a joined pipe, a main pipe is cut so that two V-shaped edges of a right angle are formed in the diametrical positions on the periphery of the main pipe, and a branch pipe is cut so that two peaked edges of a right angle are formed in the diametrical positions on the periphery of the branch pipe. Then, the facets of the V-shaped edges and the peaked edges are fused by heating, and butt-welded under pressure.

摘要翻译： 在制造连接管的方法中，切割主管，使得在主管的周围的直径位置形成直角的两个V形边缘，并且切断分支管，使得两个峰值边缘 在分支管的周边上的直径位置形成直角。 然后，通过加热使V形边缘和峰值边缘的面融合，并在压力下对接焊接。

公开(公告)号：US4721643A

公开(公告)日：1988-01-26

申请号：US7866

申请日：1987-01-28

申请人： Hiroshi Harayama ,  Hideo Nishimura ,  Satoshi Ohmura ,  Yutaka Yoshino ,  Rikizou Tanaka ,  Fumimasa Kuno

发明人： Hiroshi Harayama ,  Hideo Nishimura ,  Satoshi Ohmura ,  Yutaka Yoshino ,  Rikizou Tanaka ,  Fumimasa Kuno

IPC分类号： B32B5/18 ,  B32B37/15 ,  B32B38/04 ,  B32B38/06 ,  B32B3/26 ,  B32B5/32 ,  B32B31/06 ,  B32B31/26

CPC分类号： B32B38/06 ,  B29C65/103 ,  B29C65/106 ,  B29C66/1122 ,  B29C66/45 ,  B29C66/71 ,  B29C66/723 ,  B29C66/727 ,  B29C66/73755 ,  B29C66/73756 ,  B29C66/7394 ,  B29C66/73941 ,  B29C66/83413 ,  B32B37/04 ,  B32B37/06 ,  B32B5/18 ,  B29C66/7392 ,  B29C66/919 ,  B29C66/939 ,  B29K2105/046 ,  B32B2305/022 ,  B32B2310/0445 ,  B32B2310/0825 ,  B32B2605/003 ,  B32B37/153 ,  Y10T428/23943 ,  Y10T428/23979 ,  Y10T428/24967 ,  Y10T428/249981 ,  Y10T428/249988 ,  Y10T428/249992 ,  Y10T428/249993

摘要： A laminated structure comprising a laminated foamed sheet material composed of two cured foamed sheets each comprising a propylene-type polymer and an ethylene-type polymer and being laminated to each other through a substantially non-foamed or lowly foamed heat-fused layer, and non-foamed surface skin layers composed of a propylene-type polymer and laminated respectively to both surfaces of said laminated foamed sheet material, the ratio of the thickness Ts of each of said surface skin layer to the solid thickness Tf of each of the cured foamed sheets, Ts/Tf, being from 1 to 50, the thickness T1 of the heat-fused layer being 0.1 to 0.5 mm, and the thickness T1 being 1 to 25% of the thickness of each of the cured foamed sheets. The laminated structure can be produced by extrusion-laminating a non-foamed surface skin layer of a propylene-type polymer to one surface of each of two cured foamed sheets each comprising a propylene-type polymer and an ethylene-type polymer to thereby form two laminates, placing the two laminates such that the surfaces of the cured foamed sheets face each other, and melting and bonding the facing two surfaces to form a substantially non-foamed or lowly foamed heat-fused layer between the laminates.

摘要翻译： 一种叠层结构，包括由两个固化的发泡片材构成的层叠发泡片材，每个固化的发泡片材均包含丙烯类聚合物和乙烯类聚合物，并通过基本上不发泡或低发泡的热熔层彼此层压， 由层压发泡片材的两面分别层叠由丙烯类聚合物构成的发泡表面层，将各表层表层的厚度Ts与固化发泡片材的固体厚度Tf的比例 ，Ts / Tf为1〜50，热熔层的厚度T1为0.1〜0.5mm，厚度T1为固化发泡片的厚度的1〜25％。 层压结构可以通过将丙烯类聚合物的非发泡表面表层挤压层压到每个包含丙烯类聚合物和乙烯类聚合物的两个固化的发泡片材的一个表面中，从而形成两个 将两个层压体放置成使得固化的发泡片材的表面彼此面对，并且熔化并粘合相对的两个表面以在层压体之间形成基本上非发泡或低发泡的热熔融层。