Stainless steel during hot working, machining or place after a certain period of time the surface will form a layer of black or gray scale, the main ingredients for Cr2O3, NiO and very refractory FeO, Cr2O3, affect the appearance quality, their presence on the one hand, on the other hand also influence on the performance of the product use, so to take appropriate measures to remove them.
half fine buffing. By using sand paper need to be at least 320 mesh, or even higher. Also for rotary polishing, this one phase after the completion of the steel tube surface to about 400 mesh surface finish.
phase of a thick, throw. When mechanical polishing, choose strip sharpening stone and kerosene as a lubricant. Set the speed to 35000-40000 RPM rotation surface of the stainless steel pipe (here refers to rules of circular steel tube). The end of this process, can get 180 ~ 240 object of surface finish.
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fine buffing. After the previous two stages after polishing, this phase is more than 400 mesh cloth plate as polishing materials. To be sure, the material of cloth plate can effectively avoid the phenomenon such as scratches, get more shining surface. At this time of surface roughness for at least 600 mesh.
1.Smaller diameter with high tensile strength.
2.High precision can be used as small batch production.
3.Cold drawn finished products of high precision, good surface quality.
4.Steel pipe transverse area is more complex.
5.Steel pipe is superior performance, dense metal.
Round steel preparation—Heating—Hot rolling punch—Cut the head—Pickling—Lubrication—Cold rolling processing—Skim—Solid solution heat treatment—Straightening—Pipe cutting—Pickling—Finished goods inspection
(1) the implementation of standards should have good high temperature strength and high temperature plastic properties;
(2) in the oxidation resistance and corrosion resistance has a very good performance;
(3) has a stable tissue stability;
(4) chemical composition are;
Miele Corporation is one of the biggest manufacturers and producers for stainless steel rectangular square tube .We can supply various sizes of stainless steel rectangular square tube on high quality but factory supply pricing at most competitive rate. This material has been very useful and effective in many industries, and if it wasn't for stainless steel, we definitely would have experienced a shortcoming in critical industrial processes.