G - Physics – 01 – N
Patent
G - Physics
01
N
G01N 29/40 (2006.01) G01N 29/11 (2006.01)
Patent
CA 2285790
A method for evaluating bonding properties of a metallic pipe, the method comprises steps of measuring, in advance of a pipe expansion operation, at least one selected from a degree of shape discontinuity, a degree of defect at a bonding portion, and a degree of change in crystal structure, and comparing a measurement value with a predetermined threshold value to evaluate suitability of the bonding properties for applying pipe expansion.
Horio Hirotsugu
Shimizu Takao
Yamada Ryuzo
Daido Tokushuko Kabushiki Kaisha
Smart & Biggar
LandOfFree
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