home News How to solve the uneven thickness of stainless steel welded pipe?

How to solve the uneven thickness of stainless steel welded pipe?

Feb,Wed,2022

There are many problems which we often meet during processing stianless steel welded pipes. Uneven thickness is one of these problems. This problem is normal and we should care about this more. However, how to solve this problem? It main has helical uneven wall thickness, linear uneven wall thickness and thick and thin wall thickness at the head and tail.

1644374225614980.jpg

Such as the causes of helical uneven wall thickness:

1.       The rolling center line of the piercing machine is not accurate. The uneven wall thickness caused by the adjustment of the inclination angle of the two rolls or the too small reduction in front of the plug is generally distributed in a spiral shape along the whole length of the steel pipe.

2.       Opening the centering roller too early when rolling stainless steel welded pipe. The uneven wall thickness caused by the wrong adjustment of the centering roller and manderl jitter.

So we can take measures:

1.      Adjusting the rolling center line of the piercing machine to make the inclination angle of the two rollers equal.

2.     Adjust the opening time of the centering roller according to the outlet speed of the stainless steel welded pipe. Do not open the centering roller too early during the rolling process to prevent the ejector from shaking and causing uneven wall thickness. The opening of the centering roller needs to be adjusted appropriately according to the change of the diameter of the capillary, and the amount of the capillary runout should be considered.


Recent News
Products Menu

Copyright 2008 - 2021 Contec Steel INDUSTRIAL CO.,LTD

Phone:

+86 15961849200

Leave Your Message