I don’t know if our users have encountered low brightness on the surface of the tube when using stainless steel heat exchange tubes, so are you curious about the reason?
There are many reasons for the low brightness of the stainless steel heat exchange tube surface, which can be analyzed from two aspects, one is the raw material, and the other is the polishing process.
1. Raw materials
1. The raw materials of stainless steel heat exchange tubes are very important. Good raw materials can produce good products. Because of the stable element content of the steel strip, the stainless steel heat exchange tubes produced have high gloss; on the contrary, poor raw materials produce The element content of the stainless steel heat exchange tube strip is unstable, so the surface brightness is low.
2. The material hardness of the raw material of the stainless steel heat exchange tube. If the hardness of the material used is too low, it will not be easy to polish during polishing. At the same time, it is easy to appear orange peel phenomenon on the surface during deep drawing, resulting in low brightness of the surface of the heat exchange tube. If the material hardness is high, the polishing effect will be better, and the surface of the heat exchange tube will be glossy. The degree is also good. It should be known that the polishing effect of the stainless steel heat exchange tube is better when the thickness is between 0.52-1.1mm, because the thickness is too thin or too thick will cause the polishing to be difficult to control.
3. Defects on the surface of stainless steel heat exchange tubes, such as pitting, scratches, scratches and blisters, will affect the production process of stainless steel heat exchange tubes, which will lead to low brightness on the surface of the produced stainless steel heat exchange tubes.
2. Polishing process
The polishing process of the stainless steel heat exchange tube is the most direct factor that can affect the brightness of the surface of the stainless steel heat exchange tube.
When polishing stainless steel heat exchange tubes, external factors such as temperature and humidity will cause problems in the polishing process of stainless steel heat exchange tubes, so the outer surface of the produced stainless steel heat exchange tubes will have low brightness and dark color.
The above is the explanation for the low brightness of the surface of some stainless steel heat exchange tubes.