Stainless steel capillary is a special type of stainless steel pipe. Its price is much higher than that of general industrial pipes. Relatively speaking, the surface production process of stainless steel capillary is also better.
Stainless steel capillary has a fine structure and high requirements for use, so this material needs to have a higher production inspection standard during the production process. If the requirements are not met, it is easy to have defective products such as capillary blockage and deformation, which directly affects normal use or cannot be used. Here are some factors that affect the quality of stainless steel capillary.
In addition to the basic mechanical properties such as good tensile strength, corrosion resistance and high hardness, 304 capillary tube also has a high-quality appearance, that is, its surface brightness reaches the standard height. However, it should be noted that the brightness of small-diameter stainless steel tubes will be reduced due to improper operation or insufficient preparation during processing.
An important factor affecting the surface quality of stainless steel capillary tubes is the excessive oil content of the emulsion. Emulsion is a solution for processing stainless steel plates in cold rolling mills, which plays an important role in the flattening and cooling of stainless steel plates. However, if the emulsion contains oil components, the oil will crack into carbon at high temperatures. If the oil in the emulsion is not cleaned up in time after carbonization at high temperature, it will accumulate on the surface of the tube and form indentations after rolling.
Because the stainless steel capillary emulsion contains a lot of oil, it will be carbonized and accumulated on the inner wall of the maintenance cover after annealing. In other processing processes, 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 a long period of 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 the capillary 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.
The above is an introduction to some factors that affect 304 stainless steel capillary. In the production process, more attention should be paid to these contents to ensure that the products produced have no problems in function and appearance.
Post time: Jul-24-2024