Stainless steel capillary has good corrosion resistance, tensile resistance, flexibility, waterproofness, excellent electromagnetic shielding performance, high temperature resistance, wear resistance, and is widely used in medical biochemical instruments, automation instruments, precision optical instruments, thermal instruments, industrial sensors, and electronic equipment.
In many industrial applications, the surface quality of the inner wall of the capillary is very high, and the inner wall needs to be polished. However, this kind of stainless steel capillary inner wall polishing faces two major problems: one is that the stainless steel material has sticky knife property during machining, and the capillary structure is slender and difficult to clamp; Second, the aperture is small and cannot be reached by conventional abrasives.
However, the abrasive flow polishing process can completely solve these two problems, that is, the use of fluid abrasives to extrude and grind the inner wall of the capillary to achieve the polishing effect.
In practice, the abrasive flow process is simple and convenient to operate. First, the stainless steel capillary to be polished is fixed on a special fixture, and then the abrasive and cleaning solution are mixed and fed into the capillary. Under the action of high pressure, the fluid passes through the inner wall of the capillary at high speed, grinding and polishing the surface. After a certain period of treatment, the finish of the inner wall of the tube will be significantly improved.
The abrasive flow machining process is used for the polishing of stainless steel capillaries to obtain satisfactory processing results, and the finishing of the inner hole of stainless steel capillaries is realized.