In fact, the stainless steel square tube is extruded from the stainless steel round tube. After heat treatment, the stainless steel round tube with no surface defects, no cracks and no bending is placed on the roller equipment platform and extruded. The straightening process is then carried out. At this time, there will be stainless steel pipe manufacturers Xiyouwo's quality inspectors to detect mechanical properties, chemical analysis, tensile experiments and other processes. After confirming that it is correct, carry out the sawing machine cutting head processing. The mechanical grinding and polishing process is then carried out. The polished stainless steel square tube will be carefully packaged by the packaging staff in new material packaging bags, and can be shipped directly or put into the warehouse.
What kind of stainless steel square tube is inferior?
1. Irregular and uneven defects on the outer surface of the fake and inferior stainless steel square tube. Because the manufacturers of fake and inferior stainless steel square tubes want to pursue profits, the surface flatness that often occurs is low.
2. The surface of the fake and inferior stainless steel square tube is prone to scarring. There are two reasons:
(1) The material of the fake and inferior stainless steel square tube is uneven and there are many impurities.
(2) The guide and guard equipment of the fake and inferior manufacturers is simple and easy to stick to steel. These impurities
3. The surface of the fake and inferior material is prone to cracks, because its blank is adobe, and the adobe has many pores. During the cooling process, the adobe is subjected to thermal stress, resulting in cracks. After rolling, there are cracks.
4. The fake and inferior stainless steel square tube is easy to be scratched, the reason is that the fake and inferior stainless steel square tube manufacturer has simple equipment, which is easy to produce burrs and scratch the surface of the steel. Deep scratches reduce the strength of the steel.
5. The cross section of the fake and inferior stainless steel square tube is irregular. The reason is that in order to save materials, the reduction amount of the first two passes of the finished roller is too large. The strength of this stainless steel square tube is greatly reduced, and it does not conform to the shape of the stainless steel square tube. size standard.
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