How to adjust if the levelness of the tray support ring is out of spec?

Weld-on metal is added to restore a flat surface; this is done when the gap is small

I’m not sure what the diameter of your tower is, nor how large the deviation is. If it’s not too significant, you can weld a tool similar to a \"duckbill\" shape and wrap steel pipe around it; press down on the higher parts and lift up the lower parts – this usually solves the problem! If the deviation is large, it is necessary to determine whether the tower is made of heat-treated material, composite material, or pure stainless steel. In such cases, the part with the significant deviation must be cut out and rewelded. For sections that have been cut and welded, the support ring should be at least 1 cm away from the tower wall, and the length of each such section should not exceed three times the width of the support ring. Similarly, for composite material towers, the support ring also needs to be kept at a certain distance from the tower wall when cutting. Of course, it’s best not to use cutting and welding; generally, using tools to lift and press is sufficient.

What was said upstairs makes sense; I agree with the view from the 3rd floor.

This post was last edited by chijun*ang on 2016-1-19 at 16:26. I have seen ways to adjust the level of welding shims; if sealing is required, shims are added between the tray and the support ring.

Indeed, there is such a method: local shimming is used followed by spot welding to the support ring. For this approach, shims of varying thickness but with the same curvature as the support ring are required, and the joints between the plates must also be welded and then polished smooth; otherwise, large gaps may form between the tray and the support ring