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11. 发明专利

JP2004009386A MOLD CLAMPING DEVICE OF MOTOR-OPERATED INJECTION MOLDING MACHINE 审中-公开
公开(公告)号：JP2004009386A
公开(公告)日：2004-01-15
申请号：JP2002163408
申请日：2002-06-04
申请人： JAPAN STEEL WORKS LTD
发明人： YUKITOMO HIROSHI
IPC分类号： B29C45/66
摘要： PROBLEM TO BE SOLVED: To reduce the tumbling moment of a cross head, to prevent the action of the load of a link pin or a bush biassed in the axial direction, and to do molding corresponding to a molding having an asymmetric shape or different upper and lower thicknesses. SOLUTION: A plurality of screw mechanisms 6 are arranged in the facing arrangement direction of toggle link mechanisms 5a and 5b. A driving device dedicated to each screw mechanism 6 is provided. Screw mechanisms 6 are driven synchronously. Each screw mechanism 6 is driven to change the relative position of each nut 13 during a period from immediately before a mold touch to the end of mold clamping. COPYRIGHT: (C)2004,JPO

12. 发明专利

JP2004009117A AUTOFRETTAGE METHOD FOR THICK-WALLED PRESSURE VESSEL HAVING A PLURALITY OF HOLES 审中-公开
公开(公告)号：JP2004009117A
公开(公告)日：2004-01-15
申请号：JP2002168497
申请日：2002-06-10
申请人： JAPAN STEEL WORKS LTD
发明人： OKUNO HIROTO , KOEDA HIDEO , TAKAHASHI TERUO , TADA HIROBUMI
IPC分类号： B21J5/06
摘要： PROBLEM TO BE SOLVED: To avoid any local stress concentration by applying autofrettage to holes in a thick-walled pressure vessel having ≥ 4 and ≤ 10 holes one by one, or every other holes. SOLUTION: In an autofrettage method of a thick-walled pressure vessel having a plurality of holes, the stress distribution is unified by applying the autofrettage to holes (2) one by one or every other holes for the thick-walled pressure vessel (1) having ≥ 4 and ≤ 10 holes (2) concentrically formed therein. COPYRIGHT: (C)2004,JPO

13. 发明专利

JP2003266521A KNEADING CYLINDER DEVICE FOR KNEADING EXTRUDER 审中-公开
公开(公告)号：JP2003266521A
公开(公告)日：2003-09-24
申请号：JP2002076333
申请日：2002-03-19
申请人： JAPAN STEEL WORKS LTD
发明人： YAMAZAWA TAKAYUKI , INOUE SHIGEKI , TAKAMOTO SEIJI
IPC分类号： B29C47/66
摘要： PROBLEM TO BE SOLVED: To enhance kneading dispersibility by changing the depth of an axial groove formed along an axial direction. SOLUTION: The kneading cylinder device for a kneading extruder is constituted so that the axial grooves (6) are formed to the inner hole (5) of the kneading cylinder (2) of a kneading part (1) at a plurality of places along the axial direction of the kneading cylinder (2) and the depth of the axial grooves (6) is changed along the axial direction. COPYRIGHT: (C)2003,JPO

14. 发明专利

JP2003251672A SUPERCRITICAL FLUID INJECTING APPARATUS 审中-公开
公开(公告)号：JP2003251672A
公开(公告)日：2003-09-09
申请号：JP2002055425
申请日：2002-03-01
申请人： JAPAN STEEL WORKS LTD
发明人： UESONO HIROMASA
IPC分类号： B29C45/84 , B29C45/18 , B29C45/50 , B29C45/76
摘要： PROBLEM TO BE SOLVED: To obtain a supercritical fluid injecting apparatus by which safety of the supercritical fluid injecting apparatus such as an injector can be improved, the injector can be prevented from being broken and molding can be prevented from becoming inferior caused by injection pressure of the supercritical fluid. SOLUTION: A supercritical fluid pressure control valve 7 is fitted with a pressure detector 8A with an external signal outputting function and the outputting signal is taken in a controller 10A to always monitor the injection pressure of the supercritical fluid, and when an abnormal pressure is generated, an alarm signal is outputted to an alarm unit 20 and a stop command is outputted to a screw driving device 3 to stop driving. COPYRIGHT: (C)2003,JPO

15. 发明专利

JP2003245962A CONTROL UNIT FOR TEMPERATURE OF NOZZLE/CYLINDER OF INJECTION MOLDING MACHINE 审中-公开
公开(公告)号：JP2003245962A
公开(公告)日：2003-09-02
申请号：JP2002046255
申请日：2002-02-22
申请人： JAPAN STEEL WORKS LTD
发明人： MORII AKIRA , FUKUSHIGE YOICHI , MORIMOTO TAKASHI
IPC分类号： B29C45/78 , B29C45/20 , B29C45/62
摘要： PROBLEM TO BE SOLVED: To provide a temperature control unit for the nozzle/cylinder of an injection molding machine, capable of preventing the carbonization and deterioration of the resin in a nozzle to prevent molding failure such as the yellowing of the resin, a black spot or the like after the start of molding. SOLUTION: In the temperature control unit for the nozzle/cylinder of the injection molding machine constituted so as to control a rise in the temperatures of the cylinder (2) having a screw inserted therein and the nozzle (1), the temperature rise starting timing of the nozzle (1) is delayed by a predetermined time as compared with that of the cylinder (2). COPYRIGHT: (C)2003,JPO

16. 发明专利

JP2003220606A GRANULATING DIE IN RESIN WATER 审中-公开
公开(公告)号：JP2003220606A
公开(公告)日：2003-08-05
申请号：JP2002020910
申请日：2002-01-30
申请人： JAPAN STEEL WORKS LTD
发明人： KODATE KAZUHIRO
IPC分类号： B29B9/06 , B29K101/00
摘要： PROBLEM TO BE SOLVED: To increase a mechanical strength such as rigidity while the number of nozzles capable of being provided in a nozzle region is increased. SOLUTION: A plurality of nozzle lines 2 are provided peripherally at intervals from each other in a ring-like nozzle region X, and a first annular passage 7 and a second annular passage 8 are jointly provided outside the outer periphery of the nozzle region X. A heating medium passage 6 constituted so that a heating medium for heating flows reciprocatively not to solidify a resin flowing in each nozzle 3 is provided to a side part of the nozzle line 2 between adjacent introducing grooves 4. Each heating medium passage 6 keeps one side passage 6c branched from the first annular passage 7 communicating with the other side passage 6a branched from the second annular passage 8 via an annular return passage 6b provided to an inner peripheral side of the nozzle region X. COPYRIGHT: (C)2003,JPO

17. 发明专利

JP2003211440A KNEADING DISC 审中-公开
公开(公告)号：JP2003211440A
公开(公告)日：2003-07-29
申请号：JP2002010279
申请日：2002-01-18
申请人： JAPAN STEEL WORKS LTD
发明人： ISHIBASHI MASAMICHI
IPC分类号： B29B7/58 , B29B7/48 , B29K101/00
摘要： PROBLEM TO BE SOLVED: To solve the problem wherein a conventional kneading disc itself has no feed capacity because the disc has a left and right symmetric shape formed by cutting the entire periphery of the outer shape of the disc by a seg ment extending in the center axial direction of the disc and a compound to be kneaded becomes a uniform flow because receives only kneading while it is almost uniformly extruded to both sides of the center axial direction of the kneading disc and there is a limit even in kneading function. SOLUTION: In a plurality of the kneading discs 1 provided to the kneading part 10 of the screw 21 arranged in a cylinder 20 in a freely rotatable manner, the crest parts 1a of the kneading discs 1 are formed so as to be inclined with respect to a center axial line X-X. COPYRIGHT: (C)2003,JPO

18. 发明专利

JP2003205356A METHOD FOR COATING METAL FORMED PRODUCT BY USING FORMING DIE 审中-公开
公开(公告)号：JP2003205356A
公开(公告)日：2003-07-22
申请号：JP2002003835
申请日：2002-01-10
申请人： JAPAN STEEL WORKS LTD
发明人： NAKATSUGAWA ISAO
IPC分类号： B22D21/04 , B22D17/00 , B22D29/00 , B29C65/70
摘要： PROBLEM TO BE SOLVED: To provide a new coating method for magnesium or a magnesium alloy formed product by which a protective film can quickly be deposited on the surface of the formed product at a low cost. SOLUTION: After forming the formed product 20 by using forming dies 11, 12, the forming dies 11, 12 are opened and a resin film 30 is disposed between the forming dies 11, 12 and the formed product 20. Successively, the forming dies 11, 12 are closed and the resin film 30 is held between the forming dies 11, 12 and the formed product 20, and melted on the formed product 20 with the remaining heat of the formed product 20. In this way, the coating is easily and quickly deposited and therefore, the bringing about of surface blister or of deformation of the formed product can be avoided. Further, the coating is obtained at a low cost. COPYRIGHT: (C)2003,JPO

19. 发明专利

JP2003147445A METHOD FOR REFINING MAGNESIUM ALLOY 审中-公开
公开(公告)号：JP2003147445A
公开(公告)日：2003-05-21
申请号：JP2001337466
申请日：2001-11-02
申请人： JAPAN STEEL WORKS LTD
发明人： OKINO MISAO , NARITA HIDEKI , YAMADA HITOHISA
IPC分类号： C22B7/00 , C22B26/22
摘要： PROBLEM TO BE SOLVED: To provide a refining method having good workability without using inert gas and a filter, to the refining of a molten Mg alloy remelted in recycling Mg alloy scrap. SOLUTION: The Mg alloy scrap 3 is melted in a crucible 2 to obtain the molten magnesium alloy 5. Impurities 7 in the molten Mg alloy 5 are settled by giving the vibration of an ultrasonic vibrator 13 to the sludge 8 on the bottom part. Thus it is unnecessary to use flux, bubbling with the inert gas and the filter for removing the impurities, and the Mg alloy scrap can be economically be recycled under good working environment.

20. 发明专利

JP2003126951A METAL INJECTION MOLDING DEVICE FOR LOW-MELTING POINT METALLIC MATERIAL 审中-公开
公开(公告)号：JP2003126951A
公开(公告)日：2003-05-08
申请号：JP2001326628
申请日：2001-10-24
申请人： JAPAN STEEL WORKS LTD
发明人： OKIMOTO SHINICHI , SAWADA YASUHIKO
IPC分类号： B22D17/20 , B22D17/30
摘要： PROBLEM TO BE SOLVED: To provide a metal injection molding device which can melt, safely in a short time, a large quantity of a metallic material and also can produce metal molded goods of high quality that do not contain air bubbles and the like. SOLUTION: The metal injection molding device comprises a melting part (1) which melts metallic material in the solid state, a weighing part (30) and an injecting part (40). The melting part (1) comprises a screw (10) and a vertical type heating tube (2) which is composed of the first area part (2a) where the metallic material in the solid state is heated and the second area part (2b, 3) where a molten metallic material is stored and the heated metallic material is melted. A weighing chamber (33) comprises a vertical pipe (31) and the injecting part (40) comprises the weighing chamber (33) and a horizontal type plunger cylinder (41) separated from the weighing chamber (33). As the weighing chamber (33) comprises the vertical tube (31), air bubbles are not contained at the time of weighing. As the weighing chamber (33) and the plunger cylinder (41) are separated each other, no backflow is brought about at the time of injection even if a check valve or the like is not installed.

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