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Recently, our company’s small partners often encountered customer feedback in the process of talking with customers. In their previous procurement experience, they often encountered the problem of cra...

The surface problem of seamless steel pipes is the most common one in the process of purchasing seamless steel pipes by all customers. We often encounter customers who conflict with downstream custome...

How much smoothness of the inner hole of the cold drawn seamless steel pipe can be achieved? This is mainly based on the customer's product requirements. In the field of hydraulic steel pipes, the inn...

Generally, the deformation of welded parts does not need to be corrected. Only when the post-weld deformation exceeds the technical requirements, it needs to be corrected. The welding deformation is m...

High-frequency straight seam steel pipe (ERW welded pipe) is based on the principle of electromagnetic induction and the skin effect, proximity effect and eddy current heating effect of electric charg...

In addition to the skin effect, the proximity effect is another feature of current. When alternating currents of equal magnitude and opposite directions pass through two adjacent conductors, the curre...

Dimensional tolerance defects, surface defects and straightness defects are common defects of welded pipes in the sizing section. 1. Dimensional tolerance defects The adjustment difficulty of the ...

Upset tubing, as the name suggests, is to thicken the tubing to make the tubing more robust and durable. The thickness of a standard pipe is not increased randomly. Increasing randomly may cause crack...

How to prevent well casing pipe damage? How to repair well casing to restore its production? These are important questions in the development of oil field. Causes of well casing pipe damage: Improper...

Causes of welding deformation of thin steel plate: 1. Analysis of welding deformation Welding uses heat to connect two workpieces, but the heat will cause welding thermal deformation of ...