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31. 发明专利

JPH04336228A LINING METHOD 失效
公开(公告)号：JPH04336228A
公开(公告)日：1992-11-24
申请号：JP13533691
申请日：1991-05-13
申请人： JAPAN STEEL & TUBE CONSTR
发明人： IKEDA SHINTARO
IPC分类号： B29C63/34 , B29C63/36 , B29L23/00 , F16L58/10
摘要： PURPOSE:To insert a synthetic resin pipe in an existing pipe without damaging the resin pipe and to certainly form the synthetic resin pipe having no irregularity in thickness to the inner surface of the existing pipe in a close contact state. CONSTITUTION:When a thermoplastic resin pipe 3 having an outer diameter 70-90% of the inner diameter of an existing pipe is heated and softened to be drawn and inserted in the existing pipe 1, the resin pipe 3 is softened by passing hot air having the softening temp. within the anti-shearing and high elastic region of the resin pipe 3 along the outside the resin pipe 3. Further, a heated pressure fluid is supplied into the resin pipe 3 from the heating hose 12 connected to the tip of the resin pipe 3 drawn in the existing pipe 1 up to the introducing port thereof to restore the shape of the resin pipe 3.

32. 发明专利

JPH04314525A RESIN PIPE INTRODUCING METHOD AND RESIN PIPE INTRODUCING DEVICE 失效
公开(公告)号：JPH04314525A
公开(公告)日：1992-11-05
申请号：JP10654691
申请日：1991-04-12
申请人： JAPAN STEEL & TUBE CONSTR
发明人： YAMAMURA TAKAO , IKEDA SHINTARO
IPC分类号： B29C53/08 , B29C63/34 , F16L57/00
摘要： PURPOSE:A long resin pipe is molded reasonably and inserted easily into an existing pipe for traction. CONSTITUTION:A flat resin pipe 15 which is molded into the same diameter as the inside diameter of an existing pipe 3 or a little smaller outer diameter and processed so that a sectional area becomes small is bent gently along a pipe axis by a pair of uneven molding rollers 6 having the high radius of curvature in the vicinity of a pulling-out port of a heating and pressurizing vessel 4 and premolded. The flat resin pipe 15 is pulled down in the vicinity of the existing pipe, molding-processed gradually by a pair of molding rollers 7, 8 whose radii of curvature become smaller in order and bending of the flat resin pipe is made large. The flat resin pipe bent and molded large is bent by a recessed type roller 9 so that both ends of a widthwise direction are approached and introduced into the existing pipe by molding into a double wall cylindrical state.

33. 发明专利

JPH0369341A METHOD OF LINING CONSTRUCTION 失效
公开(公告)号：JPH0369341A
公开(公告)日：1991-03-25
申请号：JP20566089
申请日：1989-08-10
申请人： JAPAN STEEL & TUBE CONSTR
发明人： YAMAMURA TAKAO , IKEDA SHINTARO
IPC分类号： B29C63/36 , B29K67/00 , B29L23/00
摘要： PURPOSE:To push a lining material against the inner surface of an existing pipe and curing the lining material positively by a simple device by a method wherein the lower section of th existing pipe is filled with water, the lining material is inserted and penetrated into the existing pipe, and the lining material is pushed into the existing pipe and irradiated with ultraviolet rays. CONSTITUTION:Weirs 8 are installed to the lower sections of both ends of an existing pipe 1, the inside of the weirs is filled with water 9, and a rope 10 is stretched and a lining material 2 is inserted into the existing pipe 1. Frictional resistance can be lowered, and the lining material 2 can be inserted smoothly. A fluid supply valve 11 and a safety valve 12 are fixed at the front end section of the lining material 2, and a rear end section is fastened into a pressure-fluid supply port 14 together with the front end section of a reversal hose 15. The fluid supply valve 11 is opened, a pressure fluid is fed, and the lining material 2 is expanded to approximately half or more of the existing pipe 1. The fluid supply valve 11 is closed, the pressure fluid is supplied from the pressure-fluid supply port 14, the reversal hose 15 is reversed and advanced to the lining material 2, and the lining material 2 is pushed against the inner surface of the existing pipe 1. The safety valve 12 is opened by the increase of the pressure of the inside 16 of the lining material 2, and fixed pressure is kept at all times in the inside 16. Ultraviolet generator 19 are inserted into the lining material 2 by a cable 2, and the lining material 2 is irradiated with ultraviolet rays, and cured.

34. 发明专利

JPH02235616A METHOD OF IMPREGNATING RESIN INTO LINED TUBE 失效
公开(公告)号：JPH02235616A
公开(公告)日：1990-09-18
申请号：JP5721489
申请日：1989-03-09
申请人： NIPPON KOKAN KK , JAPAN STEEL & TUBE CONSTR
发明人： HAGIO AKIRA , ONO YOSHIMI , HONMA HIROSHI , IKEDA SHINTARO , TAKASU KAZUHIRO
IPC分类号： B05D7/22 , B29C63/36 , B29K101/10 , B29L9/00 , B29L23/00 , F16L1/00
摘要： PURPOSE:To impregnate a thermosetting resin uniformly throughout the resin impregnated layer of a line tube by injecting thermosetting resin in one end within the lined tube, and then holding by a pair of rollers so as to push and uniform the thermosetting resin to the other end of the lined tube, and thus impregnating to a resin impregnated layer while vibrating these rollers. CONSTITUTION:The injection rate of thermosetting resin A is decided in accordance with the diameter and length of a lined tube 10, and the thickness of a resin impregnated layer 11, and it is injected at only required rate for impregnating almost the total length of the resin impregnated layer 11 of the line tube 10. And, after the initiation of vibration in each direction of X, Y, Z of rollers 23, 24, and rotation of the lower roller 23, while performing continuously air extraction within the lined tube 10, the lined tube 10 is transported again by a roller conveyor 20 in the longitudinal direction, and further, the lined tube 10 is drawn and pressed from the side of resin injection end by means of rollers 23, 24 in a pushing and uniforming unit, thus impregnating the thermosetting resin A injected into the side of a tip end within the tube 10 into the resin impregnated layer 11 of the lined tube 10.

35. 发明专利

JPH01204726A METHOD FOR LINING PIPE LINE 失效
公开(公告)号：JPH01204726A
公开(公告)日：1989-08-17
申请号：JP2762288
申请日：1988-02-10
申请人： JAPAN STEEL & TUBE CONSTR
发明人： YAMAMURA TAKAO , IKEDA SHINTARO , TAKASU KAZUHIRO , HARA NAOKI
IPC分类号： B29C63/36 , B29K101/10 , B29K105/08
摘要： PURPOSE:To constitute the title method so that inversion/insertion of a long-sized hose impregnated with thermosetting resin can be performed without taking time and possesses at least equal mechanical strength to that of an existing pipe and enable adhesion to an inner wall, by a method wherein the long-sized hose is inserted into a pressure vessel, the long-sized hose is moved forward by introducing pressurized water and the thermosetting resin of the long-sized hose is cured with warm water through a warm water circulation hose. CONSTITUTION:The tip of a long-sized hose 20 is pulled out and inserted into an arclike slit 26 of a pressure vessel 22. The tip of the long-sized hose 20 is put over an external circumferential surface of a tip cylinder 24 by folding back the tip of the long-sized hose 20 from the tip cylinder 24 and ties up firmly annularly. Then simultaneously with pouring of pressurized water 35 into the pressure vessel through a water supply port 25 the long-sized hose 20 is kept sent into the pressure vessel 22. With this construction, an inverting part 20a is moved forward within an existing pipe 19. At the time when the inverting part 20a has advanced up to the middle a hose 21 for warm water circulation is pulled in, the whole length is heated evenly by warm water in a short period of time, thermosetting resin is cured and the existing pipe is formed in a state where a synthetic resin pipe whose strength is excellent is stuck close to the existing pipe.

36. 发明专利

JPS63217207A FLATNESS MEASURING INSTRUMENT FOR BURIED PIPE 失效
公开(公告)号：JPS63217207A
公开(公告)日：1988-09-09
申请号：JP5034587
申请日：1987-03-06
申请人： JAPAN STEEL & TUBE CONSTR
发明人： YAMAMURA TAKAO , IKEDA SHINTARO , TAKASU KAZUHIRO
IPC分类号： G01B11/24 , F17D5/00
摘要： PURPOSE:To measure the flatness of a buried pipe accurately and automatically by reflecting a light beam by a rotary mirror and projecting it on the wall of the buried pipe successively, detecting the irradiation track formed according to the deformation of the buried pipe, and processing the internal shape of the buried pipe. CONSTITUTION:A laser oscillator 12 is mounted on a carriage 4 which moves in the buried pipe 1 to be measured, and emits laser light 13 in an axial direction of the buried pipe 1. Then, the rotary mirror 14 is fitted on a carriage 4 in the laser light emission direction and reflects the light 13 toward the pipe wall of the buried pipe 1. Further, a television camera 16 is fitted on the carriage 16 and detects the pipe wall irradiation position of the light 13 reflected by the rotary mirror 14. An image pickup signal obtained by the camera 16 is supplied to an arithmetic means which computes the internal shape of the buried pipe 1. Thus, the light 13 is reflected by the rotary mirror 14 to irradiate the pipe wall in order in a peripheral direction, so the irradiation track of the light 13 formed on the pipe wall according to the shape of the buried pipe 1 can be detected, so that the internal shape of the buried pipe 1 is found.

37. 发明专利

JP2001056091A PROTECTION METHOD OF PROPULSION PIPE 失效
公开(公告)号：JP2001056091A
公开(公告)日：2001-02-27
申请号：JP23024299
申请日：1999-08-17
申请人： NIPPON ZEON CO , JAPAN STEEL & TUBE CONSTR , NIPPON KOKAN KK
发明人： TANIMOTO HIROTOSHI , IKEDA SHINTARO , FUKUSATO TORU , OKANO YOSHIHIRO
IPC分类号： E21D9/06 , F16L58/18
摘要： PROBLEM TO BE SOLVED: To protect a corrosion prevention layer in a propulsion pipe joint. SOLUTION: This is provided with a corrosion prevention layer forming process for forming a corrosion prevention layer 3 by a corrosion prevention material onto the site joint of a propulsion pipe, a reaction liquid injecting process for injecting a norbornene monomer, a metathesis catalyst and a reaction liquid containing an active agent into an air gap part formed by the outside periphery surface of the propulsion pipe and a meatal die by arranging the metal die while covering the pipe body cover part on the pipe body cover part of the front side in the propulsion direction of the site joint and a front side protection layer forming process for forming a front side protection layer 12 for covering the outside periphery surface by hardening the reaction liquid.

38. 发明专利

JPH1148352A METHOD FOR REPAIRING REACTIVE INJECTION MOLDING 失效
公开(公告)号：JPH1148352A
公开(公告)日：1999-02-23
申请号：JP21914697
申请日：1997-07-30
申请人： NIPPON ZEON CO , JAPAN STEEL & TUBE CONSTR
发明人： TANIMOTO HIROTOSHI , IKEDA SHINTARO , OHAMA HIROYUKI
IPC分类号： B29C45/00 , B29C73/02 , B29K55/00 , C09D5/34 , C09J163/00
摘要： PROBLEM TO BE SOLVED: To carry out the rapid and flawless repair on-site of a part intended for repair such as a void formed on the surface of a protecting sleeve by embedding a polythiol curable epoxy resin additive into the part intended for repair such as the void formed on the surface of a reactive injection molding. SOLUTION: A polythiol curable epoxy resin additive is embedded into e.g. a void 60 or an unfilled part 62, when either of these parts 60, 62 is generated on the surface of a protecting sleeve 50 comprising a reactive injection molding of norbornene monomer. This adhesive is of a two-pack curable type, so that during a repair work, a chief agent and a curing agent are beforehand milled separately, on, for example, the surface of a polypropylene plate material and the respectively required amounts of the chief agent and the curing agent are mixed at a stage in which a part intended for repair is detected on the surface of the reactive injection molding to fill the part intended for repair with this mixture. The chief agent of the additive is composed of an epoxy oligomer with two or more epoxy groups in a molecule and the curing agent is of the polythiol type.

39. 发明专利

JPH10166446A LINING MATERIAL AND LINING METHOD THEREFOR 失效
公开(公告)号：JPH10166446A
公开(公告)日：1998-06-23
申请号：JP34453196
申请日：1996-12-10
申请人： JAPAN STEEL & TUBE CONSTR , MARUBAYASHI KAZUHIRO
发明人： IKEDA SHINTARO , FUKUSATO TORU , MARUBAYASHI KAZUHIRO
IPC分类号： F16L1/00 , B29C63/34 , B29L9/00 , B29L23/00
摘要： PROBLEM TO BE SOLVED: To perform the work safely even in a highly humid atmosphere and effect heat setting rapidly. SOLUTION: Two parallel electrodes 4a, 4b are temporarily fixed to one of the ends of a plain weave carbon fabric sheet 3 of a lining material 1 comprising a non-electroconductive felt sheet 2 and the sheet 3 and to a location spaced from the other end thereof by a certain distance, respectively. The material 1 is wound round a packer so that the sheet 3 is located inside the sheet 2, which is drawn in to a damaged part from a manhole. Pressure fluid is fed into the packer to expand the diameter thereof so that the material 1 is pressed against the inner surface of a sewage main pipe and low voltage is applied to the electrodes 4a, 4b to heat the sheet 3, whereby thermosetting resin impregnated into the sheet 2 is heated and cured to form a lining layer over the damaged part of the main pipe.

40. 发明专利

JPH0791588A MATERIAL AND METHOD FOR COATING OUTER SURFACE OF PIPE 失效
公开(公告)号：JPH0791588A
公开(公告)日：1995-04-04
申请号：JP25520193
申请日：1993-09-20
申请人： JAPAN STEEL & TUBE CONSTR
发明人： IKEDA SHINTARO , MIMURA MICHIO , OHAMA HIROYUKI
IPC分类号： F16L1/024 , F16L58/04
摘要： PURPOSE:To provide a coating material capable of simply coating on the spot by applying hot melt adhesives kneaded with conductor powder to one of the inner surface of a crosslinked polyethylene tube or a crosslinked polyethylene sheet. CONSTITUTION:A coating tube 1 used in coating a welded joint part 5 for a gas conduit, oil transportation pipe 4, etc., has an outer layer 2 irradiated with radiation to be crosslinked in the molecular structure and consisting of polyethylene tube having a stress cracking resistant property, high heat resisting property and thermal contraction property. An inner layer 3 having an adhesive layer 3a provided with a fixed width and an adhesive layer 3b provided in the central part is applied to both ends of the inner surface of the outer layer 2. The adhesive layer 3a contains mainly hot melt adhesives kneaded with 10-50vol.% of graphite powder of non-metal anticorrosive conductor having 10-100mum of grain diameter. Also, the adhesive layer 3b uses materials of asphalt-butyl rubber.

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