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    • 3. 发明申请
    • Process for Producing Polyamide-Based Resin Film Roll
    • 生产聚酰胺基树脂膜卷的方法
    • US20090065979A1
    • 2009-03-12
    • US11918143
    • 2005-12-27
    • Tadashi NishiToshifumi NagataYoshinori MiyaguchiNaonobu OdaKatsuhiko Nose
    • Tadashi NishiToshifumi NagataYoshinori MiyaguchiNaonobu OdaKatsuhiko Nose
    • B29C35/10
    • B29C55/143B29C48/08B29C48/914B29C48/9165B29C48/919B29K2077/00
    • The present invention provides a process for production of a polyamide based resin film roll comprising a step of melt-extruding and cooling wherein polyamide based resin is melt-extruded and cooled in a sheet form onto a mobile cooling material surface to obtain an unstretched sheet; a step of biaxial stretching wherein an unstretched sheet is stretched biaxially in the longitudinal direction and the transverse direction; and a step of winding up the biaxially stretched film that is biaxially stretched in a form of roll. Then, in the step of melt-extruding and cooling polyamide based resin onto a mobile cooling material surface, corona discharge in a streamer corona state is performed between an electrode applied with high DC voltage and the polyamide based resin sheet in the melted state, and sufficient electric charges that enable the polyamide based resin sheet in the melted state to come in close contact with the mobile cooling material surface are imparted.
    • 本发明提供一种聚酰胺系树脂薄膜卷的制造方法,其特征在于,包括熔融挤出和冷却步骤,其中将聚酰胺类树脂熔融挤出并以片状冷却至移动冷却材料表面,得到未拉伸片; 双轴拉伸的步骤,其中未拉伸片材在纵向和横向双轴拉伸; 卷绕卷轴双轴拉伸的双轴拉伸膜的工序。 然后,在将聚酰胺类树脂熔融挤出冷却到移动冷却材料表面上的步骤中,在熔融状态下,在施加高直流电压的电极和聚酰胺类树脂片之间进行流光电晕状态的电晕放电, 赋予熔融状态的聚酰胺类树脂片与移动冷却材料表面紧密接触的足够的电荷。
    • 4. 发明授权
    • Toothed part manufacturing method, toothed part manufacturing device, and toothed part
    • 齿形部件制造方法,齿形部件制造装置和齿形部件
    • US09021702B2
    • 2015-05-05
    • US13365831
    • 2012-02-03
    • Hiromu SakamakiAriyoshi TeraoToshifumi Nagata
    • Hiromu SakamakiAriyoshi TeraoToshifumi Nagata
    • B21K1/30B23P15/14F16H55/17
    • B21K1/30F16H55/17Y10T29/49474Y10T74/1987
    • When forming a toothed portion on the outer section of a blank by contacting a tooth profile-forming portion of a forming die with a curved portion of the blank, the first projection of the blank is accommodated in a first depression, and a load is applied axially to a center section of the blank so a material of the blank flows radially outward. The material of the blank at the first projection flows in the axial direction to inside the first depression, and the material of the blank at an intermediate section between the center and the outer section flows in axially to inside a second depression to form a second projection. When the load is maximized, a space is provided between a toothed portion and the tooth profile-forming portion, between the first projection and the forming die, and between the second projection and the forming die.
    • 当通过使成型模具的齿形形成部分与坯料的弯曲部分接触来形成坯件的外部部分上的齿形部分时,将坯件的第一突起容纳在第一凹陷中,并施加负载 轴向地连接到坯料的中心部分,使得坯料的材料径向向外流动。 第一突起处的坯料的材料在轴向上流动到第一凹部的内部,坯料在中心部分与外部部分之间的中间部分的材料沿轴向流动到第二凹陷的内部,以形成第二凸起 。 当负载最大时,在第一突起和成形模之间以及第二突起与成形模之间的齿部和齿廓形成部之间设置空间。