Non-destructive butt weld inspection method

Details Non-destructive butt weld inspection method Non-destructive butt weld inspection method

G - Physics

01

N

G01N 25/72 (2006.01) B29C 65/82 (2006.01) G01N 19/06 (2006.01) B29C 37/04 (2006.01) B29C 65/20 (2006.01)

Patent

CA 2433944

A non-destructive plastic butt weld inspection method in which the weld bead (42) is removed from an exterior surface of a weld zone region (44) of a butt weld and the weld zone region (44) is heated to a temperature sufficient to visualize the weld zone (44). After heating, defective joints are readily identified by the appearance of a bond line (40) in the weld zone (44) while satisfactory joints merely show the weld zone (44) with no evidence of a bond line (40). Surface irregularities such as ridges (46) and indentations (48) may also form in the weld zone during the heating step.

L'invention concerne un procédé d'inspection de soudure bout à bout en plastique non destructif, dans lequel le cordon de soudure (42) est retiré de la surface extérieure d'une région de zone de soudure (44) d'une soudure bout à bout, cette région de zone de soudure (44) étant chauffée à une température suffisante pour visualiser la zone de soudure (44). Après chauffage, les joints défectueux sont tout de suite identifiés grâce à l'apparition d'une ligne de liaison (40) dans la zone de soudure (44), alors que les joints satisfaisants indiquent simplement la zone de soudure (44), sans faire apparaître de ligne de liaison (40). Des irrégularités de surface, telles que des stries (46) et des indentations (48) peuvent également se former dans la zone de soudure au cours de l'étape de chauffage.

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