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Stainless steel welded pipe, referred to as welded pipe, is a steel pipe made of commonly used steel or steel strips after being crimped and formed by a unit and a mold. Welded steel pipes have a simple production process, high production efficiency, many varieties and specifications, and less equipment investment, but the general strength is lower than that of seamless steel pipes.
Since the 1930s, with the rapid development of continuous rolling production of high-quality strip steel and the advancement of welding and inspection technology, the quality of welds has been continuously improved, and the varieties and specifications of welded steel pipes have been increasing. Heat exchange equipment has replaced seamless steel pipes with pipes, decorative pipes, medium and low-pressure fluid pipes, etc.
1. Small-diameter stainless steel welded pipes are continuously produced online. The thicker the wall thickness, the greater the investment in the unit and welding equipment, and the less economical and practical it is. The thinner the wall thickness, the lower its input-output ratio will be.
2. The process of this product determines its advantages and disadvantages. Generally, the welded steel pipe has high precision, uniform wall thickness, and high brightness inside and outside the pipe (the surface brightness of the steel pipe is determined by the surface grade of the steel plate), and can be arbitrarily determined. Therefore, it reflects its economy and aesthetics in high-precision, medium and low-pressure fluid applications.
The welding technology, it can be divided into automatic welding and manual welding. Automatic welding generally adopts submerged arc welding and plasma welding, and manual welding generally adopts argon arc welding.
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