The small stainless steel capillary tube is non-magnetic or weakly magnetic, while martensite or ferrite is magnetic. Because of component segregation or improper heat treatment during tempering, a small amount of martensite or ferrite in the austenitic 304 stainless steel tube will be caused. arrangement. In this way, the 304 stainless steel tube will have weak magnetism.
In addition, after 304 stainless steel pipe is cold worked, the arrangement structure will also transform to martensite. The greater the degree of cold working deformation, the greater the transformation of martensite and the greater the magnetic properties of the steel. It seems that a batch of steel belts produces Φ76 tubes without significant magnetic induction, and produces Φ9.5 tubes. The magnetic induction of the small stainless steel capillary tube is more pronounced due to the larger bending deformation. The square rectangular tube produced has a larger deformation than the round tube, especially the corner part, the deformation is more intense and the magnetism is more pronounced. If some manufacturers want to eliminate the magnetism contained in some stainless steel pipes, they can recover the austenite arrangement of the pipe under the condition of high temperature and solid solution, so as to eliminate the magnetism of the pipe.
The small stainless steel capillary tube has good flexibility, corrosion resistance, high temperature resistance, abrasion resistance, tensile resistance, water resistance, and provides a good electromagnetic shielding building material.
1. Wipe off the dust on the small stainless steel capillary every half month;
2. The process of the small stainless steel capillary determines its limiting function. Generally, seamless steel pipes have low precision: uneven wall thickness, low brightness on the inner surface of the pipe, high cost of sizing, and there are pits and black spots on the inner surface that are difficult to remove; it can be used Water cleaning.
3. The detection and shaping of the small stainless steel capillary must be processed offline. Therefore, it exhibits its superiority in terms of high pressure, high strength, and mechanical structural materials. Never wipe the stainless steel coil with alcohol!
4. The material of the small stainless steel capillary will undergo elastic and plastic strain under the action of flow force. If the stress is large enough, the small stainless steel capillary will cause cracking. Arrange the small stainless steel capillary and pay attention to the strength; pay attention to the interface.
5. Never let the coil catch the acidic medium; stainless steel will corrode if it encounters the acidic medium!
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