What is precision stainless steel welded pipe

First of all, welded pipes have more advantages than seamless pipes in terms of production methods; the wall thickness of welded steel pipes is more uniform, and can be arbitrarily sized, and both the pipe diameter and wall thickness can be precisely controlled; welded pipes can be made of thick walls It can also be made of thin wall, and the raw materials can be controlled at will. This is also an important reason for the wider audience of stainless steel welded pipes. Let's see where the precision is reflected.
1. Surface smoothness: Stainless steel precision tubes for furniture and bathrooms have high requirements for surface smoothness. Mechanical polishing or electrochemical polishing is used. Except for surface scratches, rust and sand holes, the precision needs to reach 6K mirror surface. As a result, the Ra value of the finish is about 0.8 μm, and excessive polishing cannot cause uneven wall thickness. The weld reinforcement is difficult to deal with. In addition to testing the polishing technology, the overlap precision between the steel strips during welding and forming directly affects the weld reinforcement. Precision stainless steel welded pipes use high-end equipment in the welding and forming process, plus After precision polishing in the last stage, the weld seam has almost zero touch.
2. Perpendicularity: The electronic and electrical shell has certain requirements for the verticality of the welded pipe. The data detected by the computer according to the bending of the pipe is processed by the measurement and control system to give the straightening correction control parameters, and then controlled by the PLC. Servo speed-regulating motor drive Rotate the top so that the direction of the maximum bending point of the workpiece is vertically upward, and finally the hydraulic cylinder performs a linear motion to drive the pressure head to press the workpiece down to complete the straightening cycle.
In addition to the straightening process, the cutting process will also affect the verticality. When the stainless steel workpiece has low hardness and small wall thickness, it is easy to bend and tilt the pipe body during the cutting process; our Gangzheng manufacturer will choose materials with appropriate hardness and adopt Laser cutting process, zero contact with the workpiece during operation, ensuring the verticality of the precision stainless steel tube.
3. Ovality: Some special components of mechanical equipment need to be punched, drilled or slotted on the pipe body. This process will easily cause the pipe body to sag and the nozzle to deform. The laser process can avoid the deformation of the nozzle caused by the impact force, and when the punching process is performed, the mold is precisely customized, no matter the shape or size is worn, it ensures a high degree of fit between the stainless steel tube and the mold, and ensures that the ovality is controlled at an extremely low level value.