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    Core material, its production process and production device and production method for extrusion molded article
    1.
    发明专利
    Core material, its production process and production device and production method for extrusion molded article 审中-公开
    核心材料及其生产工艺和生产设备及挤压成型制品的生产方法

    公开(公告)号：JP2010143152A

    公开(公告)日：2010-07-01

    申请号：JP2008324620

    申请日：2008-12-19

    Applicant: Tokai Kogyo Co Ltd ,  東海興業株式会社

    Inventor： TAMURA TATSUYA

    IPC: B29C53/04 ,  B21C23/24 ,  B29C47/02 ,  B60R13/06

    Abstract: PROBLEM TO BE SOLVED: To inhibit fault by twist deformation of a core chip when roll shaping a core material into U-shaped cross section, regarding the core material buried as a weather stripping. SOLUTION: After forming a plurality of slits at a given interval in a longitudinal direction of a raw core material by slit work and forming core chips 22 between respective slits, a core material 16 having core chips 22 and inter-spaces 24 alternately in longitudinal direction is formed by rolling the enlargement of the slits in longitudinal direction to form the inter-spaces 24. In this occasion, preliminary twist treatment is performed along with the slit work to force the core chip 22 a plastic deformation in a specific direction so that the plastic deformation of the core chip 22 twisted by the preliminary twist treatment may be corrected by a twisted deformation thereafter of the core chip 22 when the core material 16 is made into U-shaped cross section by roller forming work and width direction ends of core chips 22 may be aligned in longitudinal direction, thereby formation of step between edges of longitudinally adjacent core chips 22 is avoided. COPYRIGHT: (C)2010,JPO&INPIT

    Abstract translation: 要解决的问题：为了将芯材卷成形为U形截面时的芯片的扭曲变形来抑制故障，关于作为气候剥离掩埋的芯材料。 解决方案：通过狭缝加工在原料芯的纵向方向上以给定的间隔形成多个狭缝，并在相应的狭缝之间形成芯片22，将具有芯片22和间隙24的芯材16交替 通过在纵向方向上滚动狭缝的扩大来形成纵向方向以形成间隔部24.在这种情况下，与狭缝加工一起进行预捻加工，以迫使芯片22沿特定方向塑性变形 使得通过预捻加工扭转的芯片22的塑性变形可以通过芯片22之后的扭曲变形来校正，当芯材16通过辊成形工作成为U形横截面并且宽度方向端 芯芯22的纵向方向可以对准，从而避免了纵向相邻芯片22的边缘之间形成台阶。 版权所有（C）2010，JPO＆INPIT

    DEVICE FOR MANUFACTURING COMPOSITE BAR FOR TUBULAR AND MULTIPLE-LAYER COMPOSITE MATERIAL
    2.
    发明专利
    DEVICE FOR MANUFACTURING COMPOSITE BAR FOR TUBULAR AND MULTIPLE-LAYER COMPOSITE MATERIAL 失效

    公开(公告)号：JPH11114619A

    公开(公告)日：1999-04-27

    申请号：JP27563897

    申请日：1997-10-08

    Applicant: HITACHI CABLE

    Inventor： KONO HIDEO ,  SHIMOJIMA KIYOSHI ,  OHASHI SEISHIRO

    IPC: B21C37/04 ,  B21C23/21 ,  B21C23/22 ,  B21C23/24 ,  B21C37/06

    Abstract: PROBLEM TO BE SOLVED: To efficiently manufacture a high-quality composite bar for tubular or a multiple-layer composite material with a manufacturing device having simple constitution. SOLUTION: Movable wheels 1, 2 which are arranged at a prescribed interval on the same vertical line and around which materials 11, 12 are respectively wound are vertically arranged at the prescribed interval setting their axial centers on the vertical line. A mandrel 4 is arranged between these movable wheels, a chamber into which the material 11 is supplied and die with which the diameter of the tube is determined are arranged at the poststage of the mandrel, extrusion is executed with them and an aluminum tube is manufactured. Furthermore, the chamber 7 into which the material 12 is supplied is provided in the poststage of the chamber 6 and the die 8 is provided adjacently to this chamber 7. The covering layer of the material 12 is formed on the surface of the tube by extrusion with this die 8 and the composite tube is obtained.

    MANUFACTURE OF ALUMINUM COMPOSITE SUPERCONDUCTING WIRE
    6.
    发明专利
    MANUFACTURE OF ALUMINUM COMPOSITE SUPERCONDUCTING WIRE 失效

    公开(公告)号：JPH0512939A

    公开(公告)日：1993-01-22

    申请号：JP18558291

    申请日：1991-06-29

    Applicant: HITACHI CABLE

    Inventor： IWAKI GENZO ,  SAKAI SHUJI ,  INABA SHOJI

    IPC: B21C23/00 ,  B21C23/24 ,  H01B12/10 ,  H01B13/00

    Abstract: PURPOSE:To prevent the ununiformed deformation in an extrusion forming by using a material having the Vickers hardness of not exceeding specified value as a Nb-Ti superconducting mono-filament wire constituting a composite billet together with Al. CONSTITUTION:A diffusion preventing tube 2 is provided outside a high purity Al rod 1, a copper tube 3 for filling air being provided outside it, and subsequently a Nb-Ti superconducting mono-filament wire aggregate 4 being provided outside the aforementioned, followed by coating with a copper tube 5. After the composite extruded billet being extruded and formed by a hydrostatic (oil) pressure extrusion, it is reduced in area by a drawing forming to produce an aluminum composite superconducting wire. Here, the mono-filament aggregate 4 has a Vickers hardness of not exceeding 170. And the extrusion is preferably done at a temperature of less than 200 deg.C. Whereby, an ununiformed deformation upon extrusion of the composite billet, can be prevented.

    PRODUCTION OF FLUX CORED WIRE FOR WELDING
    8.
    发明专利
    PRODUCTION OF FLUX CORED WIRE FOR WELDING 失效

    公开(公告)号：JPH04162989A

    公开(公告)日：1992-06-08

    申请号：JP28598790

    申请日：1990-10-25

    Applicant: KAWASAKI STEEL CO

    Inventor： TABATA NOBUHISA ,  SHIGA CHIAKI

    IPC: B21C37/06 ,  B21C23/24 ,  B23K35/02 ,  B23K35/40

    Abstract: PURPOSE:To improve the feedability and welding workability of the wire by using a flux cored steel blank wire as a core wire and extrusion molding a plated wire onto the outer peripheral surface of the core material, thereby closing the joint of a sheath material and subjecting the material to a copper plating treatment. CONSTITUTION:The flux cored steel blank wire coated with the plating material which is obtd. by using the flux cored steel blank wire as the core material, introducing this wire to an extrusion molding device and combining the plating wire by extrusion molding on the outer peripheral surface thereof is subjected to finish drawing until a desired wire diameter is obtd. by way of intermediate drawing. The use of fluxes having any forms is possible and, therefore, the flux cored wire for welding which has the excellent energizing property and feedability at the time of a welding operation, exhibits good arc stability, has high productivity and is economically advantageous for improving the quality of materials to be welded is produced without impairing the quality as the welding wire.

    MANUFACTURE OF CLAD PIPE
    10.
    发明专利
    MANUFACTURE OF CLAD PIPE 失效

    公开(公告)号：JPH0327812A

    公开(公告)日：1991-02-06

    申请号：JP3344290

    申请日：1990-02-13

    Applicant: SUMITOMO ELECTRIC INDUSTRIES

    Inventor： HATA RYOSUKE

    IPC: B21C23/24 ,  B21C23/22

    Abstract: PURPOSE:To obtain a clad pipe which a lead pipe of excellent corrosion resistance is bonded on the inner peripheral surface of aluminum pipe by feeding the lead pipe to a continuous aluminum extruder which can wrap up a long sized substance after manufacturing that lead pipe and covering adhesively the outer peripheral surface of the lead pipe with aluminum by taking the above lead pipe as a core. CONSTITUTION:After the lead pipe 3 is extruding formed with a continuous extruder, that lead pipe 3 is fed to the continuous aluminum extruder which can wrap up the long sized substance in the interior. Taking the above lead pipe 3 as the core, the aluminum pipe 2 is formed on the outer periphery of the lead pipe 3 by covering continuously the outer peripheral surface of the lead pipe 3 with aluminum. To improve adhesion between the aluminum pipe and lead pipe, a supply drum 14 around which the lead pipe 3 is wound is provided in a vacuum supply tank 13, the supply tank 13 is evacuated to the vacuum with a vacuum pump 15, the lead pipe is led to the continuous aluminum extruder 6 under the vacuum, and the aluminum pipe 2 is covered on the lead pipe 3. Thereby, the clad pipe of excellent corrosion resistance can be manufactured.

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