Title:
CHEMICAL CONVERSION-TREATED STEEL PIPE
Document Type and Number:
WIPO Patent Application WO/2016/063521
Kind Code:
A1
Abstract:
A chemical conversion-treated steel pipe has a chemical conversion treatment film on a plated layer on a steel sheet. The plated layer is configured from a zinc alloy comprising 0.05-60 mass% aluminum and 0.1-10.0 mass% magnesium. The chemical conversion treatment film contains a fluorine resin, a base resin, metal flakes and a chemical conversion treatment component. The base resin is one or more selected from a group consisting of polyurethane, polyester, acrylic resins, epoxy resins and polyolefin. The content of fluorine resin with respect to the total amount of fluorine resin and base resin is at least 3.0 mass% calculated as fluorine atoms. The content of the base resin with respect to 100 parts by mass of the fluorine resin is at least 10 parts by mass. The content of metal flakes in the chemical conversion treatment film is greater than 20 mass% up to and including 60 mass%.
Inventors:
MATSUNO MASANORI
YAMAMOTO MASAYA
YAMAMOTO MASAYA
Application Number:
PCT/JP2015/005290
Publication Date:
April 28, 2016
Filing Date:
October 20, 2015
Export Citation:
Assignee:
NISSHIN STEEL CO LTD (JP)
International Classes:
C23C28/00; B32B1/08; B32B15/08; C23C2/00; C23C4/16; C23C22/36; C23C22/42
Domestic Patent References:
| WO2011158513A1 | 2011-12-22 |
Foreign References:
| JP2011038026A | 2011-02-24 | |||
| JP2012177147A | 2012-09-13 |
Attorney, Agent or Firm:
WASHIDA, KIMIHITO (JP)
Koichi Washida (JP)
Koichi Washida (JP)
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