Is it necessary to perform UT testing on the inner surface of the composite plate after rolling it? Thank you
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Is it necessary to perform UT testing on the inner surface of the composite plate after rolling it? Thank you
It’s not necessary, right? It’s never been mentioned like that before. There’s no need for that!
When composite board raw materials arrive at the factory, UT testing is carried out to check the adhesion rate; the minimum requirement for B1 grade is typically 98%, while many design specifications require 100%. Performing UT on the inner surface of the composite plate after it has been rolled is probably done to prevent the composite layer from coming loose due to poor adhesion to the base layer during the rolling process of thick plates. Do you all think it makes sense? Because if it is to detect defects in the steel plate, this should be done when the material arrives at the factory; defective materials cannot be rolled into coils
It depends on how you phrase it; if it’s to be done, many aspects need to be addressed, first and foremost the retesting of materials and the verification rate. Second, the post-rolling fitting rate. Third, when the internal components are welded to the cladding, the fit rate within a certain range around the weld seam must be checked.