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ST44 pipe manufacturer will show you: uneven wall thickness of seamless steel pipe
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ST44 pipe manufacturer will show you: uneven wall thickness of seamless steel pipe

  • Categories:Industry news
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  • Time of issue:2021-07-16
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(Summary description)ST44 pipe manufacturers tell you that the thickness precision of seamless steel pipes is an important quality standard for seamless steel pipes, and it has a critical hazard to the performance indicators and production costs of seamless steel pipes.

ST44 pipe manufacturer will show you: uneven wall thickness of seamless steel pipe

(Summary description)ST44 pipe manufacturers tell you that the thickness precision of seamless steel pipes is an important quality standard for seamless steel pipes, and it has a critical hazard to the performance indicators and production costs of seamless steel pipes.

  • Categories:Industry news
  • Author:
  • Origin:
  • Time of issue:2021-07-16
  • Views:0
Information

ST44 pipe manufacturers tell you that the thickness precision of seamless steel pipes is an important quality standard for seamless steel pipes, and it has a critical hazard to the performance indicators and production costs of seamless steel pipes. The ST44 pipe manufacturer tells you that uneven wall thickness will occur during the production of seamless steel pipes. What is causing this? Let’s analyze it together with the seamless steel pipe factory:

customized ST44 pipe from China manufacturer
The key to the uneven wall thickness of the hot-rolled pipe is the one-shot hole in the hot rolling. The ST44 pipe manufacturer tells you that the wall thickness of the capillary hole is uneven, which is likely to be caused by the following three factors:
1. The ST44 pipe manufacturer tells you that the pipe material is not symmetrically heated, which is the yin and yang face in general.
When the pipe material is heated in the inclined-hearth furnace, the inadequate transfer of the material will cause the pipe material to be half "cooked" and half "raw". When the hole is broken, the friction resistance is different, resulting in uneven wall thickness.
2. The hazards of the shape and position of the top side.
 The ST44 pipe manufacturer tells you that the top edge is applied too much, and part of the fused deposition is "station". The aspect ratio of the "station" is uneven, which is equivalent to that the top edge is not round, which will harm the uneven wall thickness; when it is more serious, 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 trembles.
 The manufacturer of ST44 pipe tells you that the piercing machine's rest assured roller is not adjusted in time, and the small chain cannot be steadily "held tightly". The small chain vibrates, resulting in uneven wall thickness.
Causes of unevenness of cold drawn steel pipes and cold drawn seamless pipes thick-walled pipes:
1. The ST44 pipe manufacturer 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 ST44 pipe 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). ST44 pipe manufacturers tell you that the unstable steel throwing of the piercer can easily lead to uneven wall thickness at the end of the capillary tube.

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