Welding seam refers to a seam formed by melting and connecting the welding rod and the metal at the joint using the high temperature of the welding heat source. After the weld metal cools down、 the two welding components are connected as a whole. According to the shape of the weld metal and the different positions of the welded parts、 it can be divided into butt welds、 fillet welds、 plug welds、 and electric riveting welds. Fillet welds are often used for lap joints; Plug welds and electric riveting are less commonly used、 and are only considered to reduce the overlap length of the welded component; Butt welds are commonly used for splicing plates and steel sections. In order to facilitate welding and ensure weld quality、 the edges of the welded parts are often machined into various shapes of grooves、 so butt welds are also known as groove welds P>
Function of testing report:
1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report
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1. Telephone communication and confirmation of requirements
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1. The testing industry is fully covered、 meeting different testing needs
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