INNER SURFACE ANTICORROSION CAST IRON PIPE

Title:

INNER SURFACE ANTICORROSION CAST IRON PIPE

Document Type and Number:

Japanese Patent JP2016109215

Kind Code:

A

Abstract:

PROBLEM TO BE SOLVED: To provide a manufacturing method of simply performing inner surface anticorrosion of a straight tube type cast iron pipe having a cement mortar lining layer while suppressing pH increase of passing water, and provide an inner surface anticorrosion cast iron pipe.SOLUTION: An inner surface anticorrosion cast iron pipe is configured such that the inner surface of a cast iron pipe 1a is covered with a cement mortar layer 21, and further covered with a coating film 22 of solventless type epoxy resin paint not containing silica sand. The solventless type epoxy resin paint is injected from an injection nozzle 73 through a mixture transport pipe 72. With rotation of a rotation roller 61, a travel device 68 is operated to advance in a shaft direction, the solventless type epoxy resin paint injected downward in a pipe covers the surface of the cement mortar layer 21, and thereby a coating film 22 covering the whole of the cement mortar layer 21 is formed.SELECTED DRAWING: Figure 5

Inventors:

NISHIHARA YOSHIKAZU
OTSU HIDEKI
DEGUCHI TAKAAKI

Application Number:

JP2014247703A

Publication Date:

June 20, 2016

Filing Date:

December 08, 2014

Export Citation:

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Assignee:

KURIMOTO LTD

International Classes:

F16L9/14; B05D7/00; B05D7/22; B05D7/24; C09D5/08; C09D163/00; C23F15/00; F16L58/06; F16L58/10

Domestic Patent References:

JPH10185080A	1998-07-14
JP2000273391A	2000-10-03
JP2002241683A	2002-08-28
JPS626867B2	1987-02-13
JP2001087706A	2001-04-03
JPH0615070B2	1994-03-02
JPH07171494A	1995-07-11

Attorney, Agent or Firm:

Naoya Kamata
Bunji Kamada
Yaichiro Nakatani
Nozomi Jiro

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