Title:
Apparatus for latent heat recovery mold temperature water generation, and a manufacturing method for the same
Document Type and Number:
Japanese Patent JP6051844
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a latent heat recovery type apparatus for producing hot water, which can reduce a fabrication cost by making a raw material cost of stainless steel inexpensive and has superior corrosion resistance.SOLUTION: The latent heat recovery type apparatus A for producing hot water includes a member 2 made of a ferritic stainless steel, wherein a chromium oxide film having a chromium concentration of 80% [cation atom%] or more is formed on a surface layer part of the member 2. Preferably, the ferritic stainless steel has a titanium concentration of 1% or less and a pitting resistance index less than 30 and the chromium oxide film is formed by adding heat treatment for high temperature oxidation to the member 2.
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Inventors:
Takahito Hishida
Yuji Nakatsuka
Yuji Nakatsuka
Application Number:
JP2012280349A
Publication Date:
December 27, 2016
Filing Date:
December 22, 2012
Export Citation:
Assignee:
Noritsu Co., Ltd.
International Classes:
F24H9/00; C22C38/00; C22C38/28; F16L58/08; F24H1/16
Domestic Patent References:
| JP2011184731A | ||||
| JP2002106970A | ||||
| JP7292446A | ||||
| JP2000176643A | ||||
| JP7233476A | ||||
| JP4183846A | ||||
| JP2006131945A |
Foreign References:
| WO1999000527A1 |
Attorney, Agent or Firm:
Masato Tsutsui
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