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

In practical terms.burnishBelonging to the 304 stainless steel tube surface roughness processing requirements, brushed is the same 304 stainless steel tube surface roughness processing requirements. So now to share with you, 304 stainless steel polished tube and 304 stainless steel drawing tube exactly what difference exists?

304 Stainless Steel Pipe

304 stainless steel tube polishing is divided into mechanical polishing and chemical polishing

First, 304 stainless steel tube mechanical polishing is divided into mechanical grinding and fluid grinding

1, the polishing machine is equipped with a polishing wheel, used for 304 stainless steel tube to do mechanical polishing, polishing, polishing wheel rotating at high speed, because the surface of the steel tube and the polishing wheel friction produces high temperature, making the tube surface plasticity, under the action of the polishing force, the surface of the substrate produces plastic deformation, the convex part is depressed and flow to the concave, resulting in a reduction of surface roughness, in addition, the 304 stainless steel polished tube chemical composition and when polishing Surrounding medium in the polishing process and the polished metal chemical reaction, greatly strengthen the polishing effect, and 304 stainless steel tube polishing can also be divided into coarse sand, fine sand and bright three kinds. With 180#-320# millipore wheel on the surface of the pipe surface processing presents the surface effect is coarse sand like, with 320#-600# millipore wheel on the surface of the pipe surface processing the surface effect is fine sand like, through the millipore wheel, sisal wheel, cloth wheel combination of polishing, can let the pipe surface get Mirror bright effect that mirror light, the advantages of this way of polishing is relatively simple equipment, easy to operate, and does not require chemical auxiliaries, the disadvantages of the 304 seamless tube can not be polished inside, and improperly disposed of if prone to produce scratches, but also more labour-intensive and time-consuming.

2, 304 stainless steel tube for fluid grinding, fluid polishing with the help of high-speed flow of liquid and the abrasive particles it carries, scouring the surface of the stainless steel square tube, in order to achieve the purpose of polishing, commonly used methods contain: abrasive jet processing, liquid jet processing, fluid power grinding, fluid magnetic power grinding, etc., fluid power grinding driven by hydraulic pressure, resulting in the carrying of abrasive particles of the liquid medium high speed reciprocating flow over the surface of the tube, the media is mainly used in the low pressure flow through good special compounds (polymer-like substances), and mixed with silicon carbide powder made of. Medium is mainly selected at lower pressure flow through the good special compounds (polymer-like substances), and mixed with abrasive made of abrasive can be used in silicon carbide powder. Such a method, used to polish, it has the advantage of relatively high brightness, and can be 304 stainless steel square tube to carry out the polishing operation, however, the disadvantage is that, have to be implemented for the square tube one by one spraying behaviour, resulting in low work efficiency.

Second, 304 stainless steel tube chemical polishing can be divided into: electrolytic polishing ep and chemical grinding cp

1, 304 stainless steel tube for electrolytic polishing EP, which belongs to the metal parts in specific conditions of the anodic erosion, this process can improve the metal surface micro-geometry, can reduce the degree of micro-roughness of the metal surface, and ultimately achieve the purpose of making the parts surface bright.

2, metal parts in specific conditions of chemical etching, that is, 304 stainless steel tube chemical grinding CP, in this etching process, the solution etching and levelling of the metal surface, and then get a brighter surface, the surface roughness is usually tens of microns.

304 stainless steel tube brushed

304 stainless steel tube brushed

304 stainless steel tube brushed belongs to a metal processing technology, it is today's stainless steel as well as aluminium products in the industry's most popular kind ofsurface treatmentTechnology. It is for 304 stainless steel material to implement the brushed effect treatment. 304 stainless steel tube brushed usually have several effects, respectively, straight wire pattern, snow pattern, nylon pattern. Straight wire is the kind of grain from the top through the bottom without stopping, generally with the help of fixed wire drawing machine to let the workpiece back and forth movement can be achieved. Snowflake pattern is currently the most popular one, it consists of a little bit with the rules of the point composition, can be used to achieve the effect of insect sandpaper. The length of the line, constituting a nylon pattern, nylon wheel texture is soft, so it can be sanded uneven parts, thereby reaching the nylon pattern.

The above is the difference between polished and brushed 304 stainless steel pipe, hope it can help you!