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51. 发明专利

JPH06198389A SHELL MOLD JOINING DEVICE 失效
公开(公告)号：JPH06198389A
公开(公告)日：1994-07-19
申请号：JP14093
申请日：1993-01-05
申请人： MAZDA MOTOR
发明人： KIRA HIROSHI , KANEMURA MICHIHIRO
IPC分类号： B22C13/08
摘要： PURPOSE:To surely support upper and lower shell molds not having adverse effect from the variance of thickness of a mold. CONSTITUTION:A lower shell mold 18 is arranged with a through hole 30, which pierces from a rear surface 18A of mold 18 up to a joint surface 28 to an upper shell mold 12. A support means 32 arranged in a drag support mechanism 26 is inserted into the through hole 30, the support mechanism 32 is abutted on the joint surface between the mold 12 and mold 18, supporting the mold 12. An upper sheell mold pressurizing mechanism 14 is arranged with the first pressurizing means 36 at the position corresponding to the support means 32, when the upper shell mold pressurizing mechanism 14 descends, the mold 12 is held by the first pressurizing means 36 and support means 32. Further, a lower shell mold support mechanism 26 is arranged with the second pressurizing means 38 and the upper shell mold pressurizing mechanism 14 is arranged with the third pressurizing means 40 at the position corresponding to the second pressurizing means 38, by these both means 38, 40, both molds 12, 18 are joined.

52. 发明专利

JPH0699246A PRODUCTION OF SAND CORE 失效
公开(公告)号：JPH0699246A
公开(公告)日：1994-04-12
申请号：JP24931792
申请日：1992-09-18
申请人： UBE INDUSTRIES
发明人： OKAMOTO HIDEMASA , KUNIMURA MASARU , IITANI HIDEYUKI , YAO SHIGERU
IPC分类号： B22C1/22 , B22C3/00 , B22C9/10 , B22C13/08
摘要： PURPOSE:To provide the sand core having excellent coatability even with a sand core prototype solidified by using a shell mold method. CONSTITUTION:The sand core prototype subjected to a (meth)acrylate treatment is obtd. by immersing the sand core prototype formed by solidifying RCS into an aq. ammonium polyacrylate soln., etc. After this sand core prototype is dried by heating, the sand core prototype is immersed into a coating liquid, by which the surface of the sand core prototype is subjected to uniform coating and is then dried. The sand core having the excellent coating is obtd.

53. 发明专利

JPH0620592B2 失效
公开(公告)号：JPH0620592B2
公开(公告)日：1994-03-23
申请号：JP16994986
申请日：1986-07-21
申请人： ADORUFU HOTSUTEINGERU MASHIINENBAU GMBH
发明人： UERUNERU RANTOA , YURUGEN MYUURERU
IPC分类号： B22C9/10 , B22C13/08 , B22C23/00

54. 发明专利

JPH0639496A CORE FOR CASTING AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH0639496A
公开(公告)日：1994-02-15
申请号：JP21729992
申请日：1992-07-23
申请人： HONDA MOTOR CO LTD
发明人： YOSHIKAWA SHOICHI , MORITA TOSHIJI , NAKADA YASUSHI
IPC分类号： B22C9/10 , B22C13/08
摘要： PURPOSE:To easily cope with the alteration, etc., of a passage shape by sticking plural shell plates formed in cross sectional shape of the passage and laminating. CONSTITUTION:By using a core for casting, the passage is formed in a cast- formed material. This core is formed by sticking plural shell plates 14a-14e formed in cross sectional shape of the passage. A gas venting passage is formed near the stuck surface of one side stuck shell plate. A projecting part 17 fitted to a part of the degassing passage 15 is formed at the stuck surface side of the other shell plate. By superposing plural pieces of the shell base plates formed in thin plate state, the shell plate cut as the cross sectional shape of the passage is formed and each shell plate is stuck. By this method, the core mold is unnecessitated and the cost can be lowered.

55. 发明专利

JPH0631389A PRODUCTION OF COLLAPSIBLE SAND CORE 失效
公开(公告)号：JPH0631389A
公开(公告)日：1994-02-08
申请号：JP23254792
申请日：1992-07-17
申请人： UBE INDUSTRIES
发明人： OKAMOTO HIDEMASA , KUNIMURA MASARU , IITANI HIDEYUKI , KOYA MORIE
IPC分类号： B22C9/10 , B22C3/00 , B22C13/08
摘要： PURPOSE:To obtain the sand core which enables sufficient coating even with a sand core prototype solidified by using a shell mold method and has excellent collapsing property. CONSTITUTION:The sand core prototype formed by solidifying RCS is subjected to an alkaline treatment by immersing the prototype into an aq. caustic soda soln., etc., to obtain the sand core prototype. After the sand core prototype is dried by heating, the sand core prototype is washed with water and is then subjected to an org. acid salt treatment and is dried; thereafter, the prototype is immersed in a coating liquid, by which the surface of the sand core prototype is uniformly coated. The coated sand core prototype is then dried, by which the collapsible sand core is obtd.

56. 发明专利

JPH067886A FINE PARTICLE FILLING DEVICE 失效
公开(公告)号：JPH067886A
公开(公告)日：1994-01-18
申请号：JP19303392
申请日：1992-06-25
申请人： TOYOTA MOTOR CORP
发明人： KAKITA TORU
IPC分类号： B22C9/10 , B22C13/08 , B22C15/24
摘要： PURPOSE:To increase the filling property by controlling the flowing-out of fine particles. CONSTITUTION:A through hole 14a is cut in a plate body 14 which is fixed to the lower end of a blowhead 10 to store the molding sand S by means of a mounting member 12. A baffle plate 16 is fixed to the upper surface of the plate body 14 by six fixing bolts 18, and a plate packing 20 made of elastic rubber is fitted to the through hole 14a. A through hole 22 is cut in the plate packing 20, and a plurality of V-shaped grooves 24 are provided in parallel to each other on the upper surface in the right-to-left direction, and a plurality of fine particulate passages 24 of triangular section are formed between the groove and the buffle plate 16. When the compressed air is supplied to theinside of the blowhead 10, the molding sand S in the blowhead 10 is flowed out from the fine particle passages 24 which are arranged in parallel to an opening part 22, and the flow of the molding sand S is appropriately straightened, and successively filled in a cavity 6.

57. 发明专利

JPH05305389A 失效
公开(公告)号：JPH05305389A
公开(公告)日：1993-11-19
申请号：JP14979492
申请日：1992-04-24
申请人： UBE INDUSTRIES
发明人： OKAMOTO HIDEMASA , YAO SHIGERU
IPC分类号： B22C3/00 , B22C9/10 , B22C13/08 , B22D17/22
摘要： PURPOSE:To form a uniform and suitable coating layer by using RCS coated with phenol base synthetic resin for molding and applying a specified slurry coating on this surface after heat treating. CONSTITUTION:At first, RCS is used and by using a shell mold method heat- treated at 70-400 deg.C, a sand core original mold is molded and successively, the coating is applied to the hot sand core original mold. By this method, solvent vaporization from the coating is promoted and viscosity of the coating is raised to form the good coating layer. Then as the coating, those of 50-90wt.% solid content containing pulverized silica and pulverized alumina as the main components and added with small quantity of coloidal silica is used. Successively, as the coated sand core is manufactured by drying the sand core original mold obtd. with coating, the coating layer having uniform and suitable thickness can be formed without repelling the coating agent from the surface of the sand core original mold.

58. 发明专利

JPH05293590A 失效
公开(公告)号：JPH05293590A
公开(公告)日：1993-11-09
申请号：JP9974692
申请日：1992-04-20
申请人： MITUTOYO CORP
发明人： NAKAOKA KUNINORI , MORITA MASAKI , MISHIMA TOSHIHIKO
IPC分类号： B22C9/02 , B22C13/08
摘要： PURPOSE:To provide a manufacturing method of a mold by which a large scale mold can economically be manufactured. CONSTITUTION:A first, the mold is divided into two or more parts 13 and manufactured. Then, as for the number of the divisions of the mold, the dividing number is optionally decided as long as the number is >=2. Successively, the molds manufactured with the divisions are assembled to form one set of the mold 31. At the time of assembling, a recessed groove at the one side of the assembling part and a projecting part engaged with the recessed part are provided, then respectively and mutually engaged with each other. At the time of manufacturing the mold in such a manner, since the large scale mold can be manufactured even if a molding flask and a shell molding machine are not made in a large scale, this method is economic and the handling is facilitated, as well.

59. 发明专利

JPH05269545A 失效
公开(公告)号：JPH05269545A
公开(公告)日：1993-10-19
申请号：JP11513292
申请日：1992-03-23
IPC分类号： B22C13/08
摘要： PURPOSE:To eliminate a trouble of driving stop for a slide caused by a sand jamming between the lower bottom face of an upper hopper and a slide gate by mounting an eccentric guide roller. CONSTITUTION:The bottom part of a sand pool hopper provided directly above a sanding chamber is concentrically machined with a section eye hole making plate having fixed pitch and fixed diameter and a water hand sliding gate 3 capable of lightly adjustable to impulse with the eccentric guide roller 4 is formed. A stopping point for a change of sanding quantity within a fully closing range in which a hole coincident stopping point is fully opened is freely set by an adjusting stopper pin before reaching a fully opening stroke. Plural- staged sanding screens 8 are provided directly below the sliding gate 3 and a sanding chamber is provided directly below the sanding screens 8. The sand lowering in the sanding chamber after work discharges circulation-inadaptive material from a discharging port for a material on net by a vibrator driving lower screen for viscosity regenerating arranged directly below a lower hopper.

60. 实用新型

JPH0544350U 失效
公开(公告)号：JPH0544350U
公开(公告)日：1993-06-15
申请号：JP9280291
申请日：1991-11-13
IPC分类号： B22C13/08

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