The manufacturer of Seamless steel pipe for ship building tells you that the thickness precision of seamless steel pipes is an important quality standard for seamless steel pipes, and it has a very critical hazard to the performance indicators and production costs of seamless steel pipes. The manufacturer of Seamless steel pipe for ship building tells you that uneven wall thickness will occur during the production of seamless steel pipes. What is causing this? Let’s analyze with the seamless steel pipe factory below:

1. The manufacturer of Seamless steel pipe for ship building tells you that the wall thickness of hot-rolled pipe is uneven, and the key is to break the hole once in hot rolling. The uneven wall thickness of the capillary hole is likely to be caused by the following three factors.
1. The heating of the tube is not symmetrical, which is the yin and yang face in general.
The manufacturer of Seamless steel pipe for ship building tells you that when the pipe material is heated in the inclined-hearth furnace, if the pipe material is not transferred frequently, it will cause the pipe material to be half "cooked" and half "raw". When the hole is broken, the friction resistance is different, resulting in wall thickness. Uneven.
2. The hazards of the top side and the position
The manufacturer of Seamless steel pipe for ship building tells you that there is too much application on the top edge, and part of the fused deposition "station". The aspect ratio of the "station" is uneven, which is equivalent to the top edge is not round, which will harm the uneven wall thickness; more serious At times, it will continue to scratch the middle and surface layers of the capillary, resulting in "heavy leather" inside. After the top edge, the uniformity of the wall thickness will also be compromised.
3. The small chain vibrates.
The manufacturer of the Seamless steel pipe for ship building tells you that the piercing machine's rest assured roller is not adjusted in time, and the small chain cannot be steadily "held". The small chain vibrates, resulting in uneven wall thickness.
2. Cold-drawn steel pipes, cold-drawn seamless pipes and thick-walled pipes. Causes of unevenness:
1. The manufacturer of the Seamless steel pipe for ship building tells you that the front-cut slope of the pipe material, excessive bending, and the skewed pipe material relief hole can easily lead to uneven wall thickness at the top of the seamless steel pipe head.
2. The seamless steel pipe for ship building manufacturer tells you that the widening index is very large when the hole is broken, the speed ratio of the hot-rolled strip is too high, and the cold-rolling is unstable.
3. The unstable steel throwing of the piercer can easily lead to uneven wall thickness at the end of the capillary.