Monthly Archives: January 2022

The surface of the 304 stainless steel pipe is due to the production process. The surface will bring some defects such as: crack, hairline, fold, fold, rolling broken, the straight, straight, delamina...

The so-called difference between stainless steel seamless pipe and carbon steel seamless pipe, stainless steel and carbon steel mainly refers to the difference in the design rules, that is, the design...

Production process of large diameter thick-walled square tube are as follows: The first step: Raw materials that strip, wire, flux. In the input before going through a rigorous physical and chemical t...

There are some steps about how to bend the square tube bending machine not o be wrinkled: 1. Clamp (clamping) part of the tube must be clamped, if not clamping, it will wrinkle. 2. If the clamping c...

Stainless steel square tube connection is varied, the commonly used types of the pipe fitting viega profi-press, compression type, propulsion, welding and various derived connection mode, many manufac...

Forming method of circular tube is called bending, and the forming method of the rectangular tube is called buckling. There are two basic ways to bend forming: solid bending and empty bending. 1, Real...

With the progress of the times, more and more cars are being manufactured. The production materials of automobiles are made of square tube. People have a lack of understanding and understanding of the...

Method of checking the hardness of the square tube is as follows: ① Scratch hardness. Mainly used to compare the degree of hardness of different minerals, the method is to choose a hard end of the sof...

After any workpiece is machined, there will remain prestressed on the surface. The residual compressive stress on the rectangular tube can improve the wear resistance of the rectangular tube and the p...

Residual stresses caused by uneven cooling of seamless square tubes. Residual stress is the internal self-equilibrium stress in the absence of external force. Hot-rolled steel of all kinds of cross-se...