Title:
管路補修方法
Document Type and Number:
Japanese Patent JP7228285
Kind Code:
B2
Abstract:
To facilitate hardening of a hardening resin infiltrated into a lining material sufficiently in a duct repair method in which the hardening resin, which is infiltrated into the lining material and facilitates hardening by heating, is heated.SOLUTION: A duct repair method includes: an inversion pressure contact step S5 in which a lining material 8 is sent to a connection portion connected to a main pipe 72 while being inverted toward an attachment pipe 71 by a fluid pressure and the lining material 8 is placed in pressure contact with an inner surface of the attachment pipe 71; an insertion step S7 in which a body part 51 of a heating device 5 for heating a supplied fluid into the lining material 8, which is inverted in the attachment pipe 71 and reaches the connection portion at its tip, to a tip portion; and a heating step S8 in which the fluid is supplied to the body part 51 of the heating device 5 inserted in the insertion step S7 and hardening of a hardening resin is facilitated by the fluid, heated in the lining material 8 by the body part 51 of the heating device 5, with the lining material 8 placed in pressure contact with the inner surface of the attachment pipe 71.SELECTED DRAWING: Figure 2
Inventors:
Takuka Umeda
Application Number:
JP2021160630A
Publication Date:
February 24, 2023
Filing Date:
September 30, 2021
Export Citation:
Assignee:
Aquaintec Corporation
International Classes:
F16L1/00; B29C63/36; F16L53/30; F16L55/165
Domestic Patent References:
| JP2017052228A | ||||
| JP2013230598A | ||||
| JP2006297615A | ||||
| JP2184421A | ||||
| JP2043024A |
Attorney, Agent or Firm:
Akihiro Yoshinobu
Yagi Hideyuki
Naoto Kurasawa
Yagi Hideyuki
Naoto Kurasawa
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