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What is the difference between the polishing of 304 stainless steel pipe and 304 brushed stainless steel pipe?

by:HHGG     2021-05-02
What is the difference between the polishing of 304 stainless steel pipe and 304 brushed stainless steel pipe? 2019-08-14    Polishing and wire drawing are actually processing requirements for the surface roughness of 304 stainless steel pipes. Today I will share with you what is the difference between 304 stainless steel polished pipe and 304 stainless steel wire drawing pipe?    304 stainless steel pipe polishing is divided into mechanical polishing and chemical polishing 1. Mechanical polishing of 304 stainless steel pipe is divided into mechanical grinding and fluid grinding 1, 304 stainless steel pipe For mechanical polishing, the polishing machine is equipped with a polishing wheel. During polishing, the polishing wheel rotates at a high speed. The high temperature generated by the friction between the surface of the steel pipe and the polishing wheel increases the plasticity of the pipe surface. Under the action of the polishing force, the surface of the substrate is plastically deformed, and the convex part is depressed and flows to the recess, making the surface rough. The degree is reduced. In addition, the chemical composition of the 304 stainless steel polished tube and the surrounding medium during polishing chemically react with the polished metal during the polishing process, which greatly enhances the polishing effect. 304 stainless steel pipe polishing can also be divided into three types: coarse sand, fine sand and bright sand. Coarse sand uses 180#--320# thousand impeller to the surface effect of the pipe surface after processing. Fine sand is the surface effect of the pipe surface processed by 320#--600# thousand impeller. The mirror light is polished by a combination of a thousand impeller wheel, a hemp wheel, and a cloth wheel, so that the tube surface can obtain a mirror-like bright effect. The advantages of this method of polishing are that the equipment is relatively simple, easy to operate, and does not require chemical auxiliary agents. The disadvantage is that the 304 seamless polished tube cannot be internally polished, and improper handling is prone to scratches, which is time-consuming and time-consuming.  2, 304 stainless steel pipe fluid grinding, fluid polishing is to rely on the high-speed flowing liquid and the abrasive particles carried by it to wash the surface of the stainless steel square pipe to achieve the purpose of polishing. Commonly used methods are: abrasive jet processing, liquid jet processing, hydrodynamic grinding, hydromagnetic dynamic grinding and so on. Hydrodynamic grinding is driven by hydraulic pressure to make the liquid medium carrying abrasive particles flow back and forth across the surface of the steel pipe at high speed. The medium is mainly made of special compounds (polymer-like substances) with good flowability under lower pressure and mixed with abrasives. The abrasives can be made of silicon carbide powder. The advantage of this method of polishing is that the brightness is high, and the 304 stainless steel square tube can be internally polished. The disadvantage is that the other tube needs to be sprayed one by one, and the work efficiency is low.  Second, 304 stainless steel pipe chemical polishing can be divided into: electrolytic polishing ep and chemical grinding cp  1, 304 stainless steel pipe electrolytic polishing EP, which is the anodic corrosion of metal parts under specific conditions. This process can improve the microscopic geometry of the metal surface, reduce the micro-roughness of the metal surface, and achieve the purpose of brightening the surface of the part.  2, 304 stainless steel pipe chemical grinding CP is the chemical etching of metal parts under specific conditions. In this etching process, the metal surface is etched and leveled by the solution, thereby obtaining a relatively bright surface. The surface roughness is generally several tens of microns.  304 stainless steel pipe drawing  304 stainless steel pipe drawing is a kind of metal processing technology, which is a popular surface treatment technology in today's stainless steel and aluminum products industry. It is the drawing effect treatment of 304 stainless steel pipe. 304 stainless steel pipe drawing generally has several effects: straight silk pattern, snow pattern, nylon pattern. Straight thread pattern is an uninterrupted pattern from top to bottom, and it is generally sufficient to use a fixed drawing machine to move the workpiece back and forth. Snow pattern is one of the more popular ones now. It is composed of a little bit of regular dots, and can be used with insect sandpaper to achieve the effect. The nylon pattern is composed of lines of different lengths. Because the nylon wheel is soft in texture, it can grind uneven parts to reach the nylon pattern.   The above is the difference between 304 stainless steel pipe polishing and wire drawing, I hope I can help everyone!   
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