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31. 发明专利

JPH09324796A VOLUTE PUMP CASING 失效
公开(公告)号：JPH09324796A
公开(公告)日：1997-12-16
申请号：JP16820796
申请日：1996-06-07
申请人： EBARA CORP
发明人： NASUNO ISOROKU , NAKAMURA TOSHIO
IPC分类号： F04D29/42 , F04D29/60
摘要： PROBLEM TO BE SOLVED: To make small the size of a forming mold of a pump casing using material of light weight and excellent corrosion resistance by building an molding assembly made of plastics or rubber in an outer shell having a nearly circular section and high rigidity, and forming a flow passage form changing the flow passage sectional area by the molded article and the outer shell. SOLUTION: In this volute casing C, a circular outer shell 1 made of steel plate is formed with a horizontal or inclined bottom plate 2 made of steel plate, and a discharge port 3 is to the outer circumferential side of the outer shell 1 and a suction port 5 opposite to the inlet of an impeler is to the bottom plate 2, respectively connected. A molding assembly 7 made of plastics or rubber having a watershed 6 is built in the casing C constituted of the circular outer shell 1 and the bottom plate 2. The molding assembly 7 connects continuously the watershed 6 to the inner face of the outer shell 1 with a curved face, so as to obtain necessary change of flow passage sectional area. The watershed 6 is constituted so that it is gradually separated in the radial direction from the axis O as it goes to the lower stream side of a flow so as to gradually increase the flow passage sectional area in the flowing direction.

32. 发明专利

JPH0617796A CASING MADE OF RESIN FOR FLUID MACHINE 失效
公开(公告)号：JPH0617796A
公开(公告)日：1994-01-25
申请号：JP8803391
申请日：1991-04-19
申请人： EBARA CORP
发明人： NAKAMURA TOSHIO , SOEDA SHIGEYOSHI
IPC分类号： F04D29/42
摘要： PURPOSE:To extend the using range of general purpose engineering plastic, used in a fluid machine casing made of resin, to a high temperature area of 80 deg.C or more. CONSTITUTION:Ribs 5 the radiation area of which is sufficiently increased are arranged in a bamboo basket mesh-form manner on the outer surface of a casing 6 on which temperature and a fluid pressure are exerted. The height of the rib is designed such that temperature is kept at a value approximately equal to an atmospheric temperature at the tip of the rib spaced farmost away from a casing body. The ribs are arranged at the wall of the casing surrounded with ribs base bottoms such that an area is set to a value enough to allow slight deformation even at a high temperature area and the casing is durable to all forces generated by an internal pressure exerted on the casing 6 by means of the strength of only the ribs 5.

33. 发明专利

JPH05228483A LARGE COMBINED TREATMENT/PURIFICATION TANK 失效
公开(公告)号：JPH05228483A
公开(公告)日：1993-09-07
申请号：JP7266192
申请日：1992-02-21
申请人： EBARA CORP
发明人： NAKAMURA TOSHIO , SOEDA SHIGEYOSHI , YAMAGUCHI MAKOTO , SAKURAI KIYOSHI
IPC分类号： B65D88/06 , B65D90/08 , C02F3/00
摘要： PURPOSE:To make it possible to cut the number of operating steps significantly by covering the periphery of a flange part with a resin using RIM technology and connecting tank bodies with the flange part to obtain a treatment/ purification tank. CONSTITUTION:A contact part between a tank body 10-2 and a tank body 10-3 is formed into flanges 10-2a, 10-3a, and further, engagement grooves 10-2c, 10-3c for a partition plate are formed on the contact surface of the flange. At the same time, sealing material introduction grooves 10-2a, 10-3b are formed at the bottom of the engagement groove for a partition plate. In addition, a packing material 16 is introduced into the sealing material introduction groove of the flange, and at the same time, the flanges are fastened using a bolt 12 and a nut 13 after engaging the partition plate 14 with the engagement groove for a partition plate. Next, the periphery of the flange part is covered with a resin 15 using RIM technology to bind the tank body 10-2 to the tank body 10-3. Thus, the tank bodies are bound together using the flange part to obtain the object treatment/purification tank.

34. 发明专利

JPH0596561A INJECTION DEVICE FOR REACTIVE INJECTION MOLDING 失效
公开(公告)号：JPH0596561A
公开(公告)日：1993-04-20
申请号：JP28921591
申请日：1991-10-08
申请人： EBARA CORP
发明人： NAKAMURA TOSHIO , SOEDA SHIGEYOSHI , SAKURAI KIYOSHI , YAMAGUCHI MAKOTO
IPC分类号： B29B7/76 , B29C39/24 , B29C45/00 , B29C45/17
摘要： PURPOSE:To provide the title injection device using the injection pressure of the returned reaction solution in a tank without using a motor as the power source of a stirrer. CONSTITUTION:In an injection device for reactive injection molding equipped with a plurality of tanks 1,2 receiving respective different reaction solutions and pumps 3,4 and injecting the reaction solutions in a resin mold from the tanks 1,2 by the pumps 3,4 through a mixing head 7, the injection pressure of the reaction solution returned to the tank 1 provided with a stirrer 11 from the tank 1 by the pump 3 is utilized as the power source of the stirrer 11 provided in the tank 1.

35. 发明专利

JPH03164217A REACTIVE INJECTION MOLDING METHOD 失效
公开(公告)号：JPH03164217A
公开(公告)日：1991-07-16
申请号：JP30616789
申请日：1989-11-24
申请人： EBARA CORP , NIPPON ZEON CO
发明人： NAKAMURA TOSHIO , SHINNO KENJI , SOEDA SHIGEYOSHI , YAMATO MOTOTOSHI , TOUHO KAZUO
IPC分类号： B29C45/00 , B29B7/76 , B29C39/24 , B29C45/18
摘要： PURPOSE:To obtain a large resin thick-walled molded product having no flaw by adjusting the temp. of a mixed resin raw solution by changing the mixing ratio of resin stock solutions different in temp. corresponding to a preset temp. pattern before injecting the mixed resin stock solution. CONSTITUTION:The opening degrees of the electromotive valves 8-1, 8-2 arranged between tanks 2-2, 2-3 and pumps 5-1, 5-2 are controlled by a control apparatus 1 and the mixing ratio of the stock solutions received in the tanks 2-2, 2-3 different in temp. is changed to adjust the temp. of the mixed resin stock solution. Therefore, the mixing ratio of the stock solutions different in temp. is changed corresponding to the preset temp. pattern corresponding to various conditions such as the shape, size or strength of a molded product to adjust the temp. of the mixed stock solution before injection. Since the temp. of the mixed stock solution issued from a mixing head 6 can be accurately changed without delay by changing the mixing ratio of the stock solutions different in temp., the injection temp. of the mixed stock solution can be accurately controlled.

36. 发明专利

JPH01253416A RESIN INJECTION MOLDING APPARATUS 失效
公开(公告)号：JPH01253416A
公开(公告)日：1989-10-09
申请号：JP8047388
申请日：1988-04-01
申请人： EBARA CORP
发明人： NAKAMURA TOSHIO , SHINNO KENJI , FURUICHI TAKERU , SOEDA SHIGEYOSHI , SAKURAI KIYOSHI
IPC分类号： B29C45/00 , B29C45/14 , B29C45/22 , B29C45/26 , B29C70/06 , B29K101/10 , B29K105/06
摘要： PURPOSE:To eliminate the necessity of a molding machine having high injection pressure even in case of a molded piece having a relatively complicate shape and a large size, and to obviate a defect such as air voids, pinholes or the like in a molded product by providing a plurality of gates communicating with the air gap of a sealed molding die according to the injection amount of mixed resin and the shape of the air gap, and simultaneously injecting the resin from the machine into the air gap through a distributor. CONSTITUTION:A reinforcing material such as glass fiber is filled in advance in air gaps 5 formed between an outer mold made of upper and lower molds 2, 3 and a telescopic mold 4. When the valve of a distributor 11 is opened in this state and mixed resin in which thermosetting liquid resin is mixed with a curing agent is fed from an injection machine 13 to the distributor 11, the resin is supplied from nozzles 8,... through pipes 9,... and gates 6,... into the gaps 4. The portions of air in the gaps 5 are discharged through air vent holes 7,... to the exterior by supplying the resin into the gaps 5. The supply of the resin is stopped in a state that the resin is filled in the gaps 5, the molds 2, 3 are removed in a state that the resin is solidified by reaction curing, thereby completing an FRP molded piece.

37. 发明专利

JPH01221216A RESIN INJECTION MOLDING DEVICE 失效
公开(公告)号：JPH01221216A
公开(公告)日：1989-09-04
申请号：JP4914688
申请日：1988-03-01
申请人： EBARA CORP
发明人： NAKAMURA TOSHIO , SHINNO KENJI , FURUICHI TAKERU , SOEDA SHIGEYOSHI , SAKURAI KIYOSHI
IPC分类号： B29C33/10 , B29C45/00 , B29C45/14 , B29C45/34 , B29C70/06 , B29K101/10 , B29K105/06
摘要： PURPOSE:To prevent the generation of a defect such as a bubble in a molded product forming a comparatively complicated from, by a method wherein casting ports for mixed liquid resin are provided respectively to the lowermost part of an air gap and the independent insular bottom of a closed mold for molding. CONSTITUTION:For example, a product having an undercut partly is molded by a molding device. A closed mold for molding is constituted of a top and bottom forces 17, 18 and a core mold 19. Then casting ports 22 casting mixed liquid resin are formed on the lowermost parts 21-1, 21-3 of a gap having a form of a product and an independent insular bottom 21-2. Then air removal holes 23 of a fine diameter discharging air of the inside of an air gap 21 are formed on the uppermost parts 21-4, 21-6 of the air gap 21 and the independent insular upper part 21-5. Then the casting port 22 and air removal hole 23 are in a positional relation where they deviate relatively from each other. Then the mixed liquid resin obtained by mixing continuously and quantitatively with a curing agent through the casting port 22. In this instance, neither a turbulent flow in the cast mixed liquid resin nor the inclusion of air within the air gap 21 are generated.

38. 发明专利

JPH01221211A FIBER REINFORCED PLASTIC PRODUCT MOLDED BY RESIN INJECTION PROCESS 失效
公开(公告)号：JPH01221211A
公开(公告)日：1989-09-04
申请号：JP4914888
申请日：1988-03-01
申请人： EBARA CORP
发明人： NAKAMURA TOSHIO , SHINNO KENJI , FURUICHI TAKERU , SOEDA SHIGEYOSHI , SAKURAI KIYOSHI
IPC分类号： B29C39/22 , B29C39/10 , B29C45/00 , B29C45/14 , B29C70/10 , B29K105/06 , B29K105/08
摘要： PURPOSE:To contrive to improve the strength of a product and to simplify the charging operation of fiber by a method in which a plurality of mats composed of reinforcing fiber as the member of reinforcing fiber, are mutually lapped, and they are sewn like a quilting. CONSTITUTION:The member 1 of reinforcing fiber to be used for a product is made by lapping and sewing a plurality of mats composed of glass fiber, etc. The lapped body made of the mats is divided into many small divisions and is formed like a quilting at sewn parts 3. A plurality of reinforcing fiber- members 1 are preliminarily charged into the cavity 14 of the mold in the resin injection device for molding a product so that the sewn point 3 and a projected part are mutually lapped. Then, the liquid mixed resin in which a prescribed amount of curing agent is mixed with liquid thermosetting resin, is poured into the cavity 14. The cavity 14 is filled with said mixed liquid resin, and a fiber reinforced plastic product may be made by curing reaction. Consequently, the including rate of the reinforcing fibers in the molded product may be remarkably improved, and the fiber reinforced plastic product with very high strength is obtained.

39. 发明专利

JPH01206011A METHOD FOR INTEGRALLY FORMING PLASTIC PRODUCT AND PLASTIC PRODUCT THEREOF 失效
公开(公告)号：JPH01206011A
公开(公告)日：1989-08-18
申请号：JP3051788
申请日：1988-02-12
申请人： EBARA CORP
发明人： NAKAMURA TOSHIO , SHINNO KENJI , FURUICHI TAKERU , SOEDA SHIGEYOSHI , SAKURAI KIYOSHI
IPC分类号： B29C33/02 , B29C33/54 , B29C39/02 , B29C39/26 , B29C45/00 , B29C45/14 , B29K101/10 , B29K105/06
摘要： PURPOSE:To make it possible to easily and accurately form a part with a complicated shape by a method wherein liquid resin is poured in gaps made by a core and a mold and, after the solidification of the liquid resin, a plastic product is integrally formed by removing the core and the mold. CONSTITUTION:Cores 20 and 21, which form respectively the water passage part 14 and the central part 15 of a guide casing or a part of a pump, are prepared. In addition, molds 22, 23 and 24 are arranged outside the cores 20 and 21 so as to make gaps 27 and 28. Further, a plurality of pouring ports 26 for pouring liquid resin in the gaps 27 and 28 are made in the mold 24 and in the core 21. The cores 20 and 21 and the like, which can not release from the molds without being broken, are formed out of a molding material which is produced by blending molding sand for manufacturing mold with a proper amount of binder. After that, resin sent from a resin pouring pump is poured through a resin disperser from the pouring ports 26. After liquid resin fills the gaps 27 and 28 and solidifies, the molds 22, 23 and 24 and the cores 20 and 21 are removed and a plastic guide casing 10 is completed as an integral body.

40. 发明专利

JP2002219440A METHOD FOR TREATING WASTE AND TREATING EQUIPMENT 失效
公开(公告)号：JP2002219440A
公开(公告)日：2002-08-06
申请号：JP2001020679
申请日：2001-01-29
申请人： EBARA CORP
发明人： NAKAMURA TOSHIO , SAKURAI KIYOSHI , KONDO HIDEKI , KOZUKA HIROSHI , TOKUTOME TATSUO
IPC分类号： F23G5/00 , B02C18/00 , B02C19/18 , B02C23/08 , B03B5/28 , B09B3/00 , B29B17/02 , B29B17/04 , F23G7/12 , F23J1/00 , B02C18/44
摘要： PROBLEM TO BE SOLVED: To provide a method for treating a waste capable of easily separating and reducing heavy metals contained in the waste and efficiently recycling plastics and a treating equipment. SOLUTION: The waste containing the plastics is heated at a temperature of 300 to 700 deg.C, a solid substance solidified after a component is melted and dripped is crushed into a powder, which is allowed to be suspended in a liquid and a powder containing much of heavy metal components is separated by allowing it to sediment.

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