May 21, 2024

Common Problems and Solutions for Burr Removal in High-frequency Welded Pipes

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Common problems within the removal procedure for internal burrs include eccentric, deep, shallow, etc., which ones will affect the caliber of weld recognition and lower the yield of ERW welded pipes. Particularly, the interior burr is deeply crawled and also the wall thickness from the weld can be When the needs aren’t met, the bearing capacity is inadequate. In severe cases, the welded pipe may burst. The techniques for removing burrs within the longitudinally welded pipe are usually split into two sorts: offline and online. The cleaning method is by using the interior burr trimming blade around the inner burr trolley around the traction bar, and employ the relative movement from the tool to organize the burrs.

Internal burr scraping

Once the internal burr is crawled, you will see steps around the inner wall from the welded pipe in the weld, and also the online flaw recognition from the weld will alarm and modify the weld excellence of the welded pipe. The reason behind the interior burr would be that the internal burr around the drawbar is crawled in the internal burr around the trolley. The middle type of the blade doesn’t coincide using the center type of the burr within the welded pipe, leading to deviation. With the inspection from the welded pipe opening, it may be discovered that the interior burr removed is clearly crawled. The interior burr blade has scratched the bottom material. Check the positioning of the tow bar, adjust the positioning of the tow bar to make sure that the mechanical connection from the tow bar is nice, in order to be sure that the tow bar won’t shake during work, that will affect the caliber of the interior burr. It’s also essential to check if the internal burr trolley around the tow bar is Put it within the correct working position and appearance if the blade screw around the inner burr trolley is loose.

Internal burr shaved deep

Once the internal burr is crawled deeply, the wall thickness from the weld won’t satisfy the needs, leading to inadequate pressure-bearing capacity, as well as in severe cases, the pipe may burst.

Once the internal burr is crawled deeply, the wall thickness from the weld won’t satisfy the needs, leading to inadequate pressure-bearing capacity, as well as in severe cases, the pipe may burst.

With the inspection from the physical burr, it’s discovered that the interior burr is simply too deep, and area of the substrate continues to be crawled off. Once the inner burr blade is working, its working height is comparatively high towards the inner wall from the welded pipe. When the height from the inner burr blade doesn’t satisfy the needs, it’ll cause Deep inner burr scraping or shallow scraping, at the moment, you have to adjust the significant height from the inner burr blade to make sure that its height is inside the standard range. Additionally, look into the fasteners around the inner burr trolley to make sure that they’re tightly suited to avoid Loose when working.

Shallow shaving of internal burrs

Once the inner burr is shallow, it’ll make the inner burr to protrude, that will seriously hinder the transportation of gas and oil. Additionally, the interior burr will seriously modify the inspection excellence of the weld. Once the inner burr is shallow, you have to adjust the peak from the inner burr blade and appearance the interior The fastening screw from the burr blade to make sure that it won’t deviate in the correct working position because of uneven pressure during work, and also the fixing seat from the traction fishing rod must be checked to make sure that the traction fishing rod won’t be brought on by looseness during work While shaving internal burrs, the traction fishing rod is away from the correct working position because of the pressure.

Once the internal burr is shallow, because it can’t be removed online, it must be removed offline through the internal burr removal device. Following the offline internal burr removal is finished, offline inspection is needed to guarantee the excellence of the weld. Additionally, when the offline inspection isn’t Qualified, further manual inspection from the weld is needed to guarantee the excellence of the weld and steer clear of the unqualified welded pipe because of the excellence of the weld.

When removing internal burrs on welded pipes, you will find mainly problems for example offset, deep scraping, shallow scraping, etc. Each problem will modify the weld quality of welded pipes. Therefore, within the production procedure for welded pipes , attention ought to be compensated to taking out the internal burrs to make sure that they’re removed. The interior burr meets the conventional.