WELDING METHOD FOR DIFFERENT MATERIAL

PROBLEM TO BE SOLVED: To provide a welding method for different material in which cracks do not penetrate in a welding joint of different materials of an austenitic stainless steel pipe with a CrMo steel pipe even after using for a long time. SOLUTION: In this welding method for different material,...

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Bibliographic Details
Main Author KOYAMA TERUO
Format Patent
LanguageEnglish
Published 08.01.2002
Edition7
Subjects
CLADDING OR PLATING BY SOLDERING OR WELDING
CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING
MACHINE TOOLS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
PERFORMING OPERATIONS
SOLDERING OR UNSOLDERING
TRANSPORTING
WELDING
WORKING BY LASER BEAM
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Summary:PROBLEM TO BE SOLVED: To provide a welding method for different material in which cracks do not penetrate in a welding joint of different materials of an austenitic stainless steel pipe with a CrMo steel pipe even after using for a long time. SOLUTION: In this welding method for different material, an austenitic stainless steel pipe 1 is welded to a low alloy steel 2 with an Inconel series welding material, and a cladding by welding metal 4 is formed or a weld metal having a final layer by overlaying is formed so as to differ a position of heat affected zone on the low alloy steel side from a position where Cr content on the outside surface is changed.
Bibliography:Application Number: JP20000184426