Have you ever noticed that there is a big difference in the surface brightness of stainless steel heat exchange tubes on the market, for example, some stainless steel heat exchange tubes are bright and beautiful in appearance; some stainless steel heat exchange tubes have low brightness and are slightly inferior. So why is there such a phenomenon?
There are two reasons for this situation: the problem of the raw material of the heat exchange tube and the manufacturing process of the heat exchange tube.
The first is the problem of raw materials, which can be subdivided into three situations.
1. The quality of raw materials:
If the selected raw materials are of high quality, the quality of the produced heat exchange tubes will be good. The element content of a good steel strip is stable, so the surface of the stainless steel heat exchange tubes has high brightness and luster; on the contrary, if the raw materials are relatively inferior, the produced heat exchange tubes will The content of tube elements is unstable, so the surface brightness of stainless steel heat exchange tubes is low.
2. The material of the raw material:
If the hardness of the raw material is too low, it will not be easy to polish during the polishing process. If the hardness is too low, it will also affect the subsequent processing. During deep drawing, it will easily cause orange peel on the surface of the heat exchange tube, which will affect the stainless steel heat exchange tube. The surface brightness of the stainless steel heat exchange tube is relatively high if the raw material with high hardness is selected, and the subsequent polishing effect is good.
3. Defects in raw materials:
There are defects such as scratches, pits, scratches, sand holes, etc. on the surface of selected raw materials, which will directly affect the production process of stainless steel heat exchange tubes.
In addition to the problem of raw materials, there is also the manufacturing process, that is, the polishing process of the stainless steel heat exchange tube, which is also the reason that directly affects the brightness of the heat exchange tube.
When the stainless steel heat exchange tube is polished, if it is affected by external factors (such as temperature and humidity) and causes problems in the polishing process, the gloss of the produced stainless steel heat exchange tube will definitely be affected, and the surface brightness will be low. .
The above is the reason for the difference in the surface brightness of stainless steel heat exchange tubes.