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1. 发明专利

JPH1038184A MENDING METHOD AND MENDING JIG FOR LEAKAGE PORTION OF FLUID PIPING 失效
公开(公告)号：JPH1038184A
公开(公告)日：1998-02-13
申请号：JP19800596
申请日：1996-07-26
申请人： NIPPON PETORA KK
发明人： KAWANO FUMIO
IPC分类号： F16L55/16 , F16L55/18
摘要： PROBLEM TO BE SOLVED: To obtain sufficient leakage prevention rate and substantially permanent leakage preventive effect by fixing and adhering an abutting member provided with a female screw hole at its center to an outer surface of a piping at a leakage portion through adhesive, and integrally screwing a short bolt with the female screw hole through sealing agent. SOLUTION: An outer surface of a leakage portion 10 of a piping is cleaned by the use of solvent such as thinner or cleaner. An adhesive 9 is applied to a connection surface 2a of an abutting member 1. Then a cylindrical pressure escaping fine pipe 8 penetrates through a female screw hole 4 of the abutting member 1 and is fixed thereto. One end of the pressure escaping fine pipe 8 is faced to the leakage portion, while leaking fluid is introduced from the other end of the pipe 8. The connection surface 2a is bonded to the cleaned outer surface of the piping. After the adhesion 9 is hardened, the pressure escaping fine pipe 8 is demounted. Sealing agent (or the adhesive 9) is applied to a threaded portion of a short bolt 5 which is then screwed with the female screw hole 4. The short bolt 5 is screwed with the abutting member 1 through the sealing agent for integration.

2. 发明专利

JPH06193791A CORROSION-PROOF COVERING STRUCTURE FOR WATER SUPPLY PIPE AND CONSTRUCTION METHOD THEREFOR 失效
公开(公告)号：JPH06193791A
公开(公告)日：1994-07-15
申请号：JP34707292
申请日：1992-12-25
申请人： DAIYUU PAINT KK , NIPPON PETORA KK , YAMAUCHI CORP
发明人： YONEYAMA SEIGO , KAWANO FUMIO , IKEDA JUNSUKE
IPC分类号： B05D7/22 , C09D5/00 , C09D5/08 , F16L58/04 , F16L58/06 , F16L58/16
摘要： PURPOSE:To improve the chip resistance and prolong the endurance years by successively forming an undercoat layer consisting of the corrosion-proof paint containing cement group powder, middle coat layer impregnated on a fiber cloth, and an upper coat layer, on the outer surface of a corrosion-proof covering object such as water supply pipe. CONSTITUTION:As for a corrosion-proof covering structure for a water pipe bridge which is exposed in particular to the atmosphere of a water supply pipe for water and sewage works, etc., an undercoat layer 2 consisting of the corrosion proof paint which is made by compounding the cement group powder as additive into a solvent type paint is formed on the outer surface of the corrosion-proof covering object 1 such as water supply pipe, and a tensile fiber cloth layer 3 is winding covered on the undercoat layer 2. Further, a middle coat layer 4 consisting of the corrosion-proof paint similar to the coating in impregnation in the fiber cloth layer 3 is formed, and an upper coat layer 5 consisting of the similar erosionproof paint is formed. The middle and upper paint coated layers 4 and 5 are set so that each cement powder content is relatively less than those in the under and middle coat layers 2 and 4 in the substrate.

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