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11. 发明专利

JPH08193789A BURNER TYPE ROTARY FURNACE 失效
公开(公告)号：JPH08193789A
公开(公告)日：1996-07-30
申请号：JP512495
申请日：1995-01-17
申请人： TOYODA AUTOMATIC LOOM WORKS , TOYOTA MOTOR CORP , TEISAN KK , NANIWA ROKI KENKYUSHO KK
发明人： HIRANO HARUYOSHI , KAMIYA YUJI , HIRAI HIDETOSHI , KOBAYASHI HIROSHI , OKADA YUJI , SHIRAKAWA HIROICHI , TSURUOKA HIROYUKI , ONO YUTAKA , TAKIMOTO YUTAKA , MURATA HIROTOSHI
IPC分类号： F27B7/20
摘要： PURPOSE: To prevent the dropping of an unmelted raw material floated based on the rotation of a furnace body. CONSTITUTION: This burner type rotary furnace comprises a raw material drop preventing cylinder 20 inserted to a charging inlet and an exhaust outlet 10b of a raw material opened at the end of a furnace body 10, and a spiral dam 23 having a reversely spiral line to the rotating direction and formed at the inner wall of the cylinder 20, wherein the dropping of the unmelted raw material floated based on the rotation of the body 10 from the outlet 10b are surely prevented.

12. 发明专利

JP2007039744A Rotary degassing device 审中-公开
标题翻译：旋转脱水装置
公开(公告)号：JP2007039744A
公开(公告)日：2007-02-15
申请号：JP2005225508
申请日：2005-08-03
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： OKADA YUJI
IPC分类号： C22B21/06 , B22D1/00 , C22B9/05
摘要： PROBLEM TO BE SOLVED: To provide a rotary gassing device which suppresses occurrence of a vortex flow in the face of molten metal, and prevents deterioration in the cleanliness of the molten metal, and remarkably contributes to the cleanliness of the molten metal.
SOLUTION: In the rotary degassing device where a hollow rotary rod 3 whose tip is provided with a rotor 2 is dipped into a molten metal M in a holding furnace 1, inert gas is blown into the molten metal M from the rotor 2 through the hollow inside of the rotary rod 3, the blown gas is cracked by the rotation of the rotor 2 and is floated up as fine bubbles G, and the gas in the molten metal M is captured into the bubbles G so as to perform degassing, in the vicinity of the surface of the molten metal M, porous rectification blocks 14 are radially installed in a state a part thereof is projected from the molten metal surface, the molten metal in the vicinity of the molten metal surface is made to go in and out to/from the holes of the rectification blocks 14, the occurrence of a vortex flow in the molten metal surface is suppressed by a wave dissipating operation owing to the holes, and also, oxide produced by the oxidation of the molten metal in the holes is captured, and the contamination of the molten metal caused by the oxide is prevented.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种抑制熔融金属表面的涡流的产生的旋转放气装置，防止熔融金属的清洁度的劣化，显着地有助于熔融金属的清洁。解决方案：在旋转脱气装置中，其顶端设置有转子2的中空旋转杆3被浸入保持炉1中的熔融金属M中，惰性气体从转子2吹入熔融金属M 通过旋转杆3的中空内部，吹出的气体由于转子2的旋转而被破裂，并且被浮起为微小气泡G，并且熔融金属M中的气体被捕获到气泡G中以进行脱气在熔融金属M的表面附近，多孔整流块14的一部分从熔融金属表面突出的状态被径向安装，熔融金属表面附近的熔融金属进入并且从整流块14的孔出来，通过由于空穴而产生的波浪耗散操作来抑制熔融金属表面中的涡流的发生，并且通过在熔融金属表面中的熔融金属的氧化产生的氧化物孔被捕获，并且污染物防止由氧化物引起的熔融金属的引入。版权所有（C）2007，JPO＆INPIT

13. 发明专利

JP2004162140A Al-Mg ALLOY FOR DIE CASTING AND METHOD FOR MANUFACTURING DIE-CAST PRODUCT MADE FROM Al-Mg ALLOY 审中-公开
公开(公告)号：JP2004162140A
公开(公告)日：2004-06-10
申请号：JP2002331111
申请日：2002-11-14
申请人： Toyota Central Res & Dev Lab Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社豊田中央研究所
发明人： OKADA YUJI , SHIMIZU YOSHIHIRO
IPC分类号： B22D17/00 , B22D17/32 , B22D27/04 , C22C21/06
摘要： PROBLEM TO BE SOLVED: To provide an Al-Mg alloy for die casting causing little solidification cracking and giving high quality of conformance, and to provide a method for manufacturing the Al-Mg alloy for providing a die-cast product having little solidification cracking and high quality of conformance.
SOLUTION: The Al-Mg alloy comprises 0.3 mass% or less Si, 2 to 5% Mg, 0.3 to 2% Mn and the balance Al with unavoidable impurities, while a content of either element of Zn, Na, Sr or Ca is controlled to respectively less than 1.0%, less than 100 ppm, less than 100 ppm or less than 50 ppm. The method for manufacturing the die-cast product made of the Al-Mg alloy is characterized by controlling of the time in cooling the Al-Mg alloy from 550°C to a predetermined temperature into a predetermined time or shorter.
COPYRIGHT: (C)2004,JPO

14. 发明专利

JPH10156485A RESIN CORE AND CASTING METHOD USING THE SAME 失效
公开(公告)号：JPH10156485A
公开(公告)日：1998-06-16
申请号：JP30971696
申请日：1996-11-20
申请人： TOYOTA MOTOR CORP
发明人： ITO TAKEJI , OKADA YUJI , ONOYAMA KAZUTOSHI , SUGIURA SHINJI
IPC分类号： B22C9/10
摘要： PROBLEM TO BE SOLVED: To smoothly pull out a resin core from a casting by uniformly softening the resin core. SOLUTION: In the resin core 10 which provides core bodies 12a, 14a forming the casting (w) and a cavity (ws) and core prints 12b, 14b fixed to a mold for positioning the core bodies 12a, 14a and pulls out the core bodies 12a, 14a from the casting by applying the pulling force to the core prints 12b, 14b, the core bodies 12a, 14a and the core prints 12b, 14b, are formed by combining plural resin core pieces 12, 14 pulled out in the same direction. Therefore, heat tansfer between the resin core pieces 12, 14, becomes little, and each resin core piece 12, 14 is scarcely affected in mutually and individually softened. By this constitution, the resin cores 12, 14 can almost uniformly be softened by suitably setting heat capacity of the resin core pieces 12, 14 to the heat capacity of the casting (w).

15. 发明专利

JPH09287033A TREATMENT OF WASTE CONTAINING OXIDE AND METHOD THEREFOR 失效
公开(公告)号：JPH09287033A
公开(公告)日：1997-11-04
申请号：JP12567396
申请日：1996-05-21
申请人： TOYOTA MOTOR CORP , AICHI STEEL WORKS LTD , TOYOKIN KK
发明人： OKADA YUJI , SHIRAKAWA HIROICHI , OKADA MASAMICHI , HARA TOSHIKATSU , SASAMOTO HIROHIKO , SUZUKI KAZUHIRO
IPC分类号： B09B3/00 , C22B5/16 , C22B7/00 , C22B7/02 , C22B13/02 , C22B19/30
摘要： PROBLEM TO BE SOLVED: To provide a method and a device for removing and recovering zinc and lead from a waste containing zinc and lead in an oxide state. SOLUTION: This treatment method comprises vaporizing and recovering zinc and lead converted into pure metals by mixing a reducing agent 2 with the waste containing zinc and lead in the oxide state such as a steel making dust 1, charging into a heat treating furnace 3, evacuating the furnace 3 and heating to reduce zinc and lead. The waste and the reducing agent are charged into the furnace 3 preferably after being mixed and briquetted. The recovered zinc or lead is preferably ingotted by providing an ingot case in a recovering device 5. The furnace 3 is preferably a rotary furnace and is preferably intermittently rotated.

16. 发明专利

JPH09271921A METHOD FOR REMOVING RESIN CORE 失效
公开(公告)号：JPH09271921A
公开(公告)日：1997-10-21
申请号：JP8277696
申请日：1996-04-04
申请人： TOYOTA MOTOR CORP , AISIN SEIKI , TOSHIBA SILICONE
发明人： OKADA YUJI , SHIRAKAWA HIROICHI , TOMITAKA SHUICHI , ITO KUNIO
IPC分类号： B22D17/22 , B22C9/10 , B22D17/32 , B22D29/00
摘要： PROBLEM TO BE SOLVED: To completely remove a core by feeding the pressurized fluid between a resin core and a die from a heat resistant tube embedded in the core in advance to extrude the resin core in removing the core after the die casting using the resin core. SOLUTION: A cast product 2 is cast using a core 1 made of the thermoplastic resin in which a heat resistant tube 5 made of silicone resin, etc., is embedded in advance. After the casting, when the resin of a part other than the heat resistant tube 5 is softened, the pressurized fluid 6 is fed into the tube 5 to break the resin part of the core at the tip of the tube, and the pressurized fluid 6 is led between the heat resistant tube 5 and the cast product 2 to extrude the core 1. The core can be completely removed without being affected by the degree of softening and melting of the core resin. In some applications, a heat resistant core which is engaged with the core resin at a plurality of parts is embedded in advance, and after the casting, the softened resin core may be pulled out together with the core.

17. 发明专利

JPH09108814A CORE FOR CASTING AND CASTING METHOD 失效
公开(公告)号：JPH09108814A
公开(公告)日：1997-04-28
申请号：JP26550995
申请日：1995-10-13
申请人： AISIN SEIKI , TOYOTA MOTOR CORP
发明人： ISHIKAWA TSUTOMU , OKADA YUJI , OKADA MASAMICHI
IPC分类号： B22D17/22 , B22C9/10 , B22D29/00
摘要： PROBLEM TO BE SOLVED: To provide a core for casting which contributes to the lightening of a cast product remaining the metallic core and facilitates the manufacture. SOLUTION: In the core 1 for casting used to form a hollow shape or an undercut shape in the product formed with a metallic mold, a synthetic resin- made packing material 5 softened with the heat at the time of casting is packed into the inner part of an outer shell metal 4 formed with a sheet metal. Since the synthetic resin-made packing material 5 has small heat conductivity, the packing material is hardened in the molten metal state, and it is unnecessary that the thickness of the outer shell metal 4 remained in the cast product is formed to the thickness in consideration of the casting pressure. Further, the packing material 5 is softened with the heat at the time of casting and can easily be removed.

18. 发明专利

JPH0947856A VACUUM DIE CASTING APPARATUS 失效
公开(公告)号：JPH0947856A
公开(公告)日：1997-02-18
申请号：JP19992795
申请日：1995-08-04
申请人： TOYOTA MOTOR CORP
发明人： OKADA YUJI
IPC分类号： B22D17/14 , B22D17/20
摘要： PROBLEM TO BE SOLVED: To provide a vacuum die casting apparatus which is profitable to prevent the disturbance of molten metal and can reduce or avoid casting defect. SOLUTION: This apparatus is provided with a molten metal injection device 3 for injecting the molten metal into a forming cavity 10 under reduced pressure. The molten metal injection device 3 is provided with a first chamber 31 communicated with the forming cavity 10, a first plunger 5, a second chamber 32 having a molten metal supplying hole 37 for supplying the molten metal and a chamber communicating hole 39 and a second plunger 6. A molten metal receiving chamber 63 is communicated with the molten metal supplying hole 37 and also, shut off to the chamber communicating hole 39 according to the retreat in the arrow mark C2 direction of the second plunger 6. The molten metal receiving chamber 63 is shut off to the molten metal supplying hole 37 and also, communicated with the chamber communicating hole 39 according to the advance in the arrow mark C1 direction of the second plunger 6.

19. 发明专利

JPH08219650A SLAG COLLECTION METHOD FOR BURNER FURNACE AND SLAG COLLECTION STRUCTURE 失效
公开(公告)号：JPH08219650A
公开(公告)日：1996-08-30
申请号：JP2683795
申请日：1995-02-15
申请人： TOYOTA MOTOR CORP
发明人： OKADA YUJI , SHIRAKAWA HIROICHI
IPC分类号： F27D1/06 , F27B7/28 , F27D15/00
摘要： PURPOSE: To make it possible to prevent a reduction in an inside diameter of a furnace attributable to deposited slags and melt the slags in a continuous mode with a plurality of charges. CONSTITUTION: This invention relates to a slag collection method for a burner furnace wherein a porous fire resisting material layer is formed on a furnace wall of a burner furnace and slags 12 generated in a melting material is arranged to be caught in a porous layer and constitutes a slag collection structure wherein the inner most layer of the furnace wall of the burner furnace is formed with the porous fire resisting material layer.

20. 发明专利

JPH0871697A METHOD FOR REPAIRING RESIN CORE 失效
公开(公告)号：JPH0871697A
公开(公告)日：1996-03-19
申请号：JP21278694
申请日：1994-09-06
申请人： TOYOTA MOTOR CORP
发明人： OKADA YUJI , OKADA MASAMICHI , SHIRAKAWA HIROICHI , TOMITAKA SHUICHI
IPC分类号： B22D17/22 , B22C1/00 , B22C9/10
摘要： PURPOSE: To provide a method for repairing a resin core which is reusable by resetting the core to a prescribed shape without requiring a stage of melting injection molding for the plastically deformed resin core. CONSTITUTION: The resin core 30 plastically deformed by drawing is inserted into through-holes 6A, 6B of repair molds 4A, 4B in such a manner that its deformed part 34 corresponds to hole parts 8A, 8B and is heated near the hole parts 8A, 8B by heaters 10 to 10, by which the deformed part 34 is heated and softened. Both ends 30A, 30B of the resin core 30 are simultaneously pressurized inward by pressurizing means on both sides of the repair molds 4A, 4B and the part 34 softened by heating is made into projecting parts 36A, 36B. These parts are packed into the hole parts 8A, 8B and are reset to the resin core of the prescribed shape. Cooling water is thereafter passed into cooling water pipings 12 to 12, by which the projecting parts 36A, 36B are cooled to solidify. The resin core repaired in such a manner is taken out by dividing the repair molds 4A, 4B and is used for next casting.

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