ALLOY-COATED BOILER COMPONENT

WIPO Patent Application WO/2012/053287

A1

Provided is an alloy-coated boiler component an end of which is to be welded, wherein a metallic base material at an end region is subjected to fusion coating (15) by a first alloy material that contains not lower than 1.5% and not higher than 2.5% of B, not lower than 3.5% and not higher than 4.0% of Si, not higher than 0.4% of C, and not lower than 12.0% and not higher than 17.0% of Cr, with the remainder being Ni and unavoidable impurities, and a metallic base material at a non-end region is subjected to fusion coating (16) by a second alloy material that contains more than 2.5% and not higher than 4.0% of B, more than 4.0% and not higher than 5.0% of Si, not lower than 0.5% and not higher than 0.9% of C and not lower than 12.0% and not higher than 17.0% of Cr, with the remainder being Ni and unavoidable impurities (percentages are expressed in terms of mass percentages). This alloy-coated boiler component has a fusion coating that can be formed by performing a thermal spraying and remelting treatment over the entire metallic base material and is excellent in terms of the resistance to thermal shock of the fusion coating formed on the end region.

MATSUBARA YOICHI (JP)
SOCHI YOSHINOBU (JP)
TAKEYA AKIHIRO (JP)

PCT/JP2011/070111

April 26, 2012

September 05, 2011

Click for automatic bibliography generation  

DAI ICHI HIGH FREQUENCY CO LTD (JP)
MATSUBARA YOICHI (JP)
SOCHI YOSHINOBU (JP)
TAKEYA AKIHIRO (JP)

C23C4/06; B23K9/00; B23K9/028; B23K9/23; B23K35/30; C22C19/05; F22B37/04

JP2005274022A	2005-10-06
JPH0867937A	1996-03-12
JPH10170194A	1998-06-26
JP2004176158A	2004-06-24
JPH10170194A	1998-06-26
JP2001004101A	2001-01-12
JP2000329304A	2000-11-30
JP4411114B2	2010-02-10

See also references of EP 2631322A4

AICHI, HIROSHI (JP)
Yoshitomo 宏 (JP)

View/Download PDF      PDF Help

Previous Patent: SEPARATOR FOR ELECTROCHEMICAL ELEMENT, METHOD FOR MANUFACTURING SAME, ELECTRODE FOR ELECTROCHEMICAL ...

Next Patent: FUEL CELL