The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 05, 2010
Filed:
Mar. 24, 2005
Yoichi Matsubara, Kawasaki, JP;
Yoshinobu Sochi, Kawasaki, JP;
Makoto Kumakawa, Kawasaki, JP;
Shin-nan Lee, Taipei, TW;
Yoichi Matsubara, Kawasaki, JP;
Yoshinobu Sochi, Kawasaki, JP;
Makoto Kumakawa, Kawasaki, JP;
Shin-Nan Lee, Taipei, TW;
Dai-Ichi High Frequency Co., Ltd., Kanagawa, JP;
Flourshing Enterprise Co., Ltd., Taipei, TW;
Abstract
An alloy-coated boiler part is furnished with a melted coating of alloy material excellent in erosion/corrosion resistance when joined by welding, and free from thermal shock cracking. Super alloy coating () is applied over rapid temperature rise region width (C), where thermal shock cracking may occur at a welding operation, at end portions subjected to weld joint including the vicinity. Self-fluxing alloy coating () is applied on remaining regions other than the rapid temperature rise region width (C). While over a half proportion of each of the alloy coatings () occupied by an Ni-enriched Ni—Cr component, the super alloy coating () has the contents of B and Si suppressed to equal or less than 0.1% and equal or less than%, respectively, and in the self-fluxing alloy coating (), the content of each of B and Si is in the range of 1 to 5%.