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71. 发明专利

JPH0825336A MANUFACTURE OF REINFORCEMENT TUBULAR FIBER MOLDING 失效
公开(公告)号：JPH0825336A
公开(公告)日：1996-01-30
申请号：JP16224794
申请日：1994-07-14
申请人： MITSUBISHI CHEM CORP
发明人： YAMAGUCHI KOJI , MIYAZAKI HIROSHI , MATSUOKA SHIRO
IPC分类号： B28B1/28 , B28B1/52 , B28B21/08 , B28B21/30 , B28B21/80 , C22C47/08 , C22C1/09
摘要： PURPOSE:To manufacture a consistent quality molding easily and continuously by allowing a mold to rotate at two different speeds: low rotational speed to make a molding material stick uniformly to the inside face of a molding and a high speed to dehydrate the molding material. CONSTITUTION:A mold in which the ratio of the area of drain holes to that of a surface is 0.1 to 1.0% and the diameter of an individual hole is 0.1 to 5mm is used. Dehydrating molding is performed by making a mold rotate around the central axis. Dehydrating molding is performed in two stages, first at a low rotational speed and then at a high rotational speed. Practically a total amount of a molding material is deposited from slurry and stuck to the inside face of the mold at an even thickness during a low rotational speed. In consequence, a reinforced tubular molding of consistent quality can be obtained easily even if accurate molding conditions and a complex type of equipment are not used.

72. 发明专利

JPH06143237A MANUFACTURE OF CERAMIC BENT TUBE 失效
公开(公告)号：JPH06143237A
公开(公告)日：1994-05-24
申请号：JP41880790
申请日：1990-12-27
申请人： KUBOTA KK
发明人： HINENO MINORU , SHINOZAKI TAKESHI
IPC分类号： B28B1/28 , B28B11/00 , B28B21/30 , B28B21/92 , C04B41/80
摘要： PURPOSE:To mold a ceramic pipe of a straight tube shape to a bent tube such as an elbow tube, a U-tube, etc., useful as a tube constituting material by bending (plasticizing) the ceramic pipe. CONSTITUTION:A hollow cylindrical molded form A made of ceramic particles each having a particle size of 1mum or less and molded by a centrifugal force slip casting method is baked as a baked material, refractory beads 30 are filled in a hollow hole of the baked material, and applied by a bending load while heating to plastically deform the baked material.

73. 发明专利

JPH05200712A CAST MOLDING METHOD AND APPARATUS FOR THE SAME 失效
公开(公告)号：JPH05200712A
公开(公告)日：1993-08-10
申请号：JP1377492
申请日：1992-01-29
申请人： JAPAN STEEL WORKS LTD
发明人： YAGUCHI HIROYASU
IPC分类号： B28B1/26 , B28B1/28
摘要： PURPOSE:To prepare a high-precision, high-quality molded body by casting slurry at low pressure in particular. CONSTITUTION:In a cast molding method in which a molded body is prepared by casting slurry prepared by dissolving a powdery raw material in water into a cavity 12 formed by a mold A consisting of an upper mold 8 and a lower mold 10, the slurry is cast into the cavity 12 while the mold being rotated to form the molded body by a low pressure casting method.

74. 发明专利

JPH04807B2 失效
公开(公告)号：JPH04807B2
公开(公告)日：1992-01-08
申请号：JP25765787
申请日：1987-10-13
申请人： NGK INSULATORS LTD
发明人： HAMANAKA TOSHUKI , HARADA SETSU , HATSUTORI FUMIO
IPC分类号： B28B1/26 , B28B1/28

75. 发明专利

JPH0367608A SLURRY CAST MOLDING MACHINE 失效
公开(公告)号：JPH0367608A
公开(公告)日：1991-03-22
申请号：JP20405089
申请日：1989-08-07
申请人： TOTO LTD
发明人： NARUI KAZUO , SAITO SATORU , ASO TAIICHI
IPC分类号： B28B1/28
摘要： PURPOSE:To permit both supply and exhaust paths from respective swivel joints to be rotated with rotating shafts and a frame integrally, and make flexible hoses unnecessary by providing slurry supply and exhaust paths and fluid supply and exhaust paths respectively within a pair of rotating shafts supporting the frame on a basement, and providing swivel joints outside respective rotating shafts of both supply and exhaust paths. CONSTITUTION:In a molding machine 11, there are provided an oil pressure supply and exhaust path 31 and slurry supply and exhaust path 35 respectively through left and right rotating shafts 23, 23, and swivel joints 33, 37 are provided outside respective rotating shafts thereof. During the rotating period of a frame 13, both supply an exhaust paths 31, 35 situated at the font ends, of respective swivel joints 33, 37 rotate followingly and integrally with the rotating shafts 23, 23 and frame 13. In this manner, supply and exhaust flexible houses are rendered unnecessary, and the lowering of an operative efficiency or cost-up of articles is prevented thereby. Besides, it is available that a pressurized air supply and exhaust pipe 29 is passed through the rotating shafts, summerizingly, it is preferable to pass a fluid pressurized air supply and exhaust pipe through the rotating shafts. And, it is also preferable to utilize the axially directional paths of the rotating shafts as supply and exhaust paths.

76. 发明专利

JPH0263803A MANUFACTURE OF HOLLOW CERAMIC SHELL 失效
公开(公告)号：JPH0263803A
公开(公告)日：1990-03-05
申请号：JP21707088
申请日：1988-08-31
申请人： MITSUBISHI ELECTRIC CORP
发明人： ABE TOSHIO
IPC分类号： B22D13/04 , B22F3/22 , B28B1/20 , B28B1/28
摘要： PURPOSE:To obtain a hollow ceramic shell free from a jointing area or a seal part by a method wherein a liquid ceramic material is put into a hollow template, turned round two axes of a vertical and horizontal ones, a ceramic layer is formed on the inside of the template, water is absorbed into the template for solidification and sintered through heating. CONSTITUTION:A template 5 is fitted to a supporting mechanism 6 and the first rotary table 7 is turned by the first motor 8. Then the second rotary table 10 is turned by the second motor 9. Then a ceramic solution 4 is stuck to the inside of the template 5 with centrifugal force, its water is absorbed and a hollow ceramic shell 11 is completed on the inside of the template. Then the ceramic shell 11 is taken out through the template 5, cured by sintering at a high temperature and comes to completion.

77. 发明专利

JPH0199803A PRODUCTION OF CERAMICS PORT LINER 失效
公开(公告)号：JPH0199803A
公开(公告)日：1989-04-18
申请号：JP25765987
申请日：1987-10-13
申请人： NGK INSULATORS LTD
发明人： HAMANAKA TOSHIYUKI , HARADA SETSU , HATTORI FUMIO
IPC分类号： F02F1/42 , B28B1/26 , B28B1/28
摘要： PURPOSE:To prevent the deformation of the edges of the openings of a part liner during firing, by forming the main body of a port liner having its extremities closed in bag form by cast molding and cutting off the extremities after the firing to provide openings. CONSTITUTION:The main body 1 of a port liner having its extremities 11 and 12 respectively on the engine side and the exhaust pipe side closed in bag form is formed by cast molding according to the drain casting method. After the draining, the moisture of slurry is absorbed through a mold 3 and ceramic is gradually deposited on the inner surface of the mold. When a desired wall thickness is attained, excessive slurry is again drained through a valve hole 2 to thereby form the main body 1 of a port liner having its extremities closed in bag form. Since the main body 1 is taken out of the mold 3 and fired after it has been formed with its extremities being closed in bag form, the edges of the openings of the port liner do not undergo deformation during firing.

78. 发明专利

JPH0196069A PRODUCTION OF CERAMIC SINTERED BODY 失效
公开(公告)号：JPH0196069A
公开(公告)日：1989-04-14
申请号：JP25178587
申请日：1987-10-06
申请人： KUBOTA LTD
发明人： HAYASHI HIROSHI , HIRAISHI HISASHI , SUGAI ATSUSHI
IPC分类号： B28B1/28 , C04B35/645
摘要： PURPOSE:To obtain a dence ceramic sintered body causing no breakage nor deformation and having sufficiently high handleability in a short time by performing preparation of a ceramic molded body by centrifugal molding and sintering under hot isostatic pressing in combination. CONSTITUTION:A slurry contg. ceramic particles is casted in a gypsum mold 1 from a hopper 4, and the gypsum mold 1 is rotated together with a metallic frame 2 around a center of the shaft of the metallic frame as a center of rotation with a rotary driven roller 5, forming thus a slurry layer along an internal peripheral surface of the gypsum mold 1 by the effect of centrifugal force. Further, the thickness of the slurry layer is increased by the water absorbing effect of the gypsum mold 1, forming thus a dense ceramic molded body A on the internal peripheral surface of the gypsum mold 1. Then, the molded body A is removed from the gypsum mold 1 and dried and sealed tightly in a capsule B. A ceramic sintered body is obtd. by subjecting the sealed material to hot isostatic press sintering.

79. 发明专利

JPS6354521B2 失效
公开(公告)号：JPS6354521B2
公开(公告)日：1988-10-28
申请号：JP6995780
申请日：1980-05-26
申请人： TOSHIBA CERAMICS CO
发明人： OKI KAZUO , TAKAHASHI SHOICHI , ITO JUGO
IPC分类号： B28B1/28 , B28B1/20

80. 发明专利

JPS60186454A REFRACTORY MOLDINGS 失效
公开(公告)号：JPS60186454A
公开(公告)日：1985-09-21
申请号：JP3987084
申请日：1984-03-02
申请人： MINO YOGYO KK , DAINICHI CONCRETE KOGYO KK
发明人： TANEMURA FUMIKAZU , YAJIMA KOUZOU , MIZUNO YOSHIROU , SHINANO TERUZOU , SASA KAZUICHI
IPC分类号： C04B35/622 , B28B1/20 , B28B1/26 , B28B1/28 , C04B35/00

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