公开(公告)号：US4960624A

公开(公告)日：1990-10-02

申请号：US188724

申请日：1988-04-29

申请人： Keiji Ueno

发明人： Keiji Ueno

IPC分类号： B29C35/08 ,  B29C61/00 ,  B29C71/04 ,  C08F259/08 ,  C08L27/18 ,  H01B3/44

CPC分类号： H01B3/445 ,  B29C61/003 ,  B29C71/04 ,  C08F259/08 ,  C08L27/18 ,  H01B3/441 ,  B29C2035/0877 ,  B29K2027/12 ,  B29K2027/18 ,  G05B2219/49293 ,  Y10T428/1331

摘要： A fluoroelastomer composition is disclosed, which comprises a mixture of 100 parts by weight of a tetrafluoroethyline-propylene copolymer, not smaller than 1 part by weight and smaller than 100 parts by weight of a vinylidene fluoride-fluoroolefin copolymer having a fluoroolefin content of 1 to 20 mol %, and a cross-linking agent, said mixture being cross-linked by irradiation with electron beams. The fluoroelastomer composition has a high mechanical strength and improved low temperature characteristics. When the content of the vinylidene fluoride-fluoroolefin copolymer is not smaller than 10 parts by weight and smaller than 100 parts by weight per 100 parts by weight of the tetrafluoroethylene-propylene copolymer the fluoroelastomer composition is suitable as a material for producing heat shrinkable tubes.

摘要翻译： 公开了含氟弹性体组合物，其包含100重量份的四氟乙烯 - 丙烯共聚物，不少于1重量份且小于100重量份的氟代烯烃含量为1〜 20摩尔％和交联剂，所述混合物通过用电子束照射而交联。 含氟弹性体组合物具有高的机械强度和改善的低温特性。 当偏二氟乙烯 - 氟代烯烃共聚物的含量不小于10重量份且小于100重量份时，相对于每100重量份的四氟乙烯 - 丙烯共聚物，含氟弹性体组合物适合作为制造热收缩管的材料。

公开(公告)号：US4862380A

公开(公告)日：1989-08-29

申请号：US143129

申请日：1987-12-04

申请人： Hideaki Kawamura ,  Takao Sasaki

发明人： Hideaki Kawamura ,  Takao Sasaki

IPC分类号： G05B19/18

CPC分类号： G05B19/182 ,  G05B2219/49293 ,  G05B2219/49376 ,  G05B2219/50235 ,  G05B2219/50387

摘要： A numerical control unit grips a bar-shaped workpiece (18) at two points longitudinally of the workpiece by gripping members (16, 17), and rotates the gripping members synchronously by respective spindle motors (14, 15). The workpiece is subjected to turning machining by a cutter (25) while the gripping members are being synchronously rotated, and an end face of the workpiece is thereafter subjected to separate machining. The unit synchronously controls a first axis along which the first spindle motor (14) is moved in the horizontal direction and a second axis along which the second spindle motor (15) is moved in the horizontal direction in accordance with numerical information regarding the first axis in response to a synchronous control command. The first and second axes are controlled in accordance with numerical information regarding each of the first and second axes in response to an independent control command.