Stainless steel capillary pipe is a special kind of stainless steel pipe. Its price is also much higher than that of general industrial pipes. Relatively speaking, the surface production process of stainless steel capillary pipes will also be better.
Due to the fine structure and high requirements of use, the stainless steel capillary pipe requires high production inspection standards in the production process. If the requirements are not up to standard, defective products such as capillary blockage and deformation are likely to occur, which directly affects normal use or cannot be used for use. The following will introduce several factors that affect the quality of stainless steel capillary pipes.
In addition to basic mechanical properties such as good tensile strength, corrosion resistance and high hardness, 304 capillary pipe also has a high-quality appearance. That is, its surface brightness reaches a standard height. However, it should be noted that the brightness of small diameter stainless steel pipes will be reduced due to improper handling or insufficient preparation during processing.
An important factor affecting the surface quality of stainless steel capillary pipes is that the oil content of the emulsion is too high. Emulsion is a solution for processing stainless steel in cold rolling mills, and plays an important role in the smoothing and cooling of stainless steel. However, if the emulsion contains oil, the oil will crack into carbon at high temperatures. If the oil in the emulsion is not cleaned in time after carbonization at high temperature, it will accumulate on the surface of the tube and form indentations after rolling.
Due to the large amount of oil in the stainless steel capillary pipe emulsion, it will carbonize and accumulate on the inner wall of the maintenance hood after annealing. During other processing, these carbon blacks will be brought to the surface of the small diameter stainless steel tube, thereby covering the surface of the tube and affecting the appearance quality. After prolonged treatment, many impurities such as oil, carbon black and dust will accumulate on the convection plate and furnace. If they are not cleaned in time, these impurities will also fall on the surface of the stainless steel plate.
In fact, the chemical composition and surface finish of stainless steel capillary pipe are closely related to the manufacturing environment and cleanliness. As long as the convection plate, furnace and the inner wall of the inspection cover are cleaned in time, the surface quality of the stainless steel capillary can be indirectly improved.
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