Method for preparing tubular pipe to perform non destructive testing in e.g. oil industry, using ultrasound, involves preparing part with strips close together on portion of part, where strips are provided with magnetostrictive properties

• Main Authors: SCANDELLA FABRICE, CHAUVEAU DANIEL, CHEHAIBOU ABDELKRIM
• Format: Patent
• Language: English; French
• Published: 03.02.2012
• Subjects: CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; METALLURGY; PHYSICS; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TESTING

The method involves preparing a part i.e. tubular pipe (10), with two parallel basic strips (41a, 41b) close together on a portion (11) of a surface of the part, where the strips are non-continuous and provided with magnetostrictive properties. A coating magnetostrictive material (40) is deposited on the portion of the part to form the strips, where the material impacts the surface of the part in a form of powder. The coating magnetostrictive material deposited on the portion of the part is realized by dynamic cold projection. L'invention concerne un procédé de préparation d'une pièce (10) pour permettre son contrôle par ondes guidées produites par effet magnétostrictif dans lequel on solidarise un matériau magnétostrictif (40) de revêtement avec la surface de la pièce (10). On dépose ce matériau sur au moins une première portion (11) de surface de la pièce (10) par projection.