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Beta-300 Pro Automatic Cut-off Machine
Beta-300Pro is an automatic cut-off machine which adopted advanced intelligent control & touch s...
Metallographic polishing cloth The fiber should be soft and not mixed with hard fibers. Before polishing, wash your hands and metallographic polishing cloth to avoid bringing coarse sand into the polishing disc and causing a new deformed layer. Metallographic polishing cloth is mainly used for mechanical polishing of metallographic samples.
Mechanical polishing relies on the grinding and rolling effects of fine diamond powder (nano alumina powder) to polish the metallographic sample into a lubricated mirror surface. Polishing powder is embedded in the voids of the metallographic polishing cloth during polishing. Equivalent to the cutting effect of metallographic sandpaper. The equipment used for mechanical polishing is mainly a metallographic polishing machine. The metallographic polishing machine is composed of a metallographic polishing cloth driven by a motor, and the structure is relatively simple. A good metallographic polishing machine can not have axial and radial runout, and the metallographic polishing cloth should be stable and low noise during use. Commonly used abrasives for polishing are diamond micropowder, nano alumina powder, iron oxide and magnesium oxide. The polishing abrasives are made into an aqueous suspension for use. The most commonly used polishing agent is metallographic polishing agent because of its high polishing efficiency and good surface quality.
The metallographic polishing cloth has a very important effect on the polishing of the sample. It relies on the conflict between the metallographic polishing cloth and the grinding surface to make the grinding surface bright. In the polishing process, the fiber voids of the fabric can also store polishing powder and then grind. The commonly used metallographic polishing cloth is canvas, woolen cloth, velvet and silk for fine polished and fine polished fabrics.
During the polishing operation, the pressure applied to the sample should be balanced and consistent, and should be heavier first and then lighter. In the early stage of polishing, the direction of the wear marks on the sample should be straight with the direction of the polishing disc rolling, in order to quickly remove the wear marks left by the previous procedure. In the later stage of polishing, the sample needs to be rolled slowly, which is conducive to obtaining a bright polished surface.
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