How to Ensure the Quality of Welded Steel Pipe?
Date:2017-06-23 View(s):746 Tag:welded steel pipe
To ensure the standard of welded steel pipe, we want to require the geometric dimensions of steel strip into thought, beacause the fluctuation of the strip dimension not solely affects the accuracy of the steel pipe's outer diameter, however conjointly seriously affects the surface quality of the steel pipe.
1. If the dimension of the steel strip is a smaller amount than the allowable deviation, the compression force of the welded steel pipe are reduced, which is able to cause the attachment of the steel pipe loose, and cracks or open-end pipe can seem.
2. If the dimension of the strip is bigger than the allowable deviation,the compression force are inflated once the steel pipe is welded, which is able to cause tip, attachment or burr attachment defects showing on the weld of the steel pipe.
Thickness fluctuations not solely have an effect on the thickness accuracy of the finished steel pipe, at a similar time, the distinction of steel strip's thickness can cause the extrusion pressure and attachment temperature ar instability whereas the steel pipe within the attachment, which is able to lead to welded steel pipe weld quality instability. additionally, the existence of bed, impurities, eye disease and different material defects within the interior of steel is additionally a very important issue to have an effect on the standard of steel pipe .
For Prime Steel Pipe, before attachment the steel strip , we'll check the surface quality and geometric size of every steel strip. If Prime Steel Pipe notice the steel strip that the standard doesn't meet the quality needs, we can't do production to avoid needless losses.