Title:
METHOD FOR PROCESSING SURFACE OF STAINLESS STEEL, AND HEAT EXCHANGER OBTAINED USING SAME
Document Type and Number:
WIPO Patent Application WO/2015/145808
Kind Code:
A1
Abstract:
Provided is a method for processing a surface of a stainless steel, the method being a method for forming a refined structure in the surface of a stainless steel, i.e., for forming a rugged structure (roughened surface) that is refined and has a large surface area. This method for processing a surface of a stainless steel is a method for forming a refined structure in a surface of a stainless steel, and is characterized by including: a first step in which the stainless steel is subjected to crystal-grain refinement in which the crystal grains inside the surface thereof are refined; and a second step in which after the first step, the surface of the stainless steel is etched for roughening with an etchant.
Inventors:
KAWAMURA TOSHINORI (JP)
TAMURA AKINORI (JP)
NAKANO HIROSHI (JP)
KITO KAZUAKI (JP)
TAMURA AKINORI (JP)
NAKANO HIROSHI (JP)
KITO KAZUAKI (JP)
Application Number:
PCT/JP2014/073606
Publication Date:
October 01, 2015
Filing Date:
September 08, 2014
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
C23F1/28; B24C1/06; C21D7/06; C23F1/00; F28F1/12; F28F21/08
Foreign References:
| JPS55122872A | 1980-09-20 | |||
| JP2009068079A | 2009-04-02 | |||
| JPH08218151A | 1996-08-27 |
Other References:
See also references of EP 3124650A4
Attorney, Agent or Firm:
INOUE Manabu et al. (JP)
Manabu Inoue (JP)
Manabu Inoue (JP)
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