What is the difference between resin refining and resin cutting


    China cutting disc for metal

    1: different uses Resin grinding discs are used for sanding. For example, the burr on the surface of the workpiece needs to be polished, and the weld on the surface of the workpiece needs to be ground. At this time, the angle grinder is equipped with a grinding disc, the burr is worn away, and the weld is smoothed; and the resin cutting sheet is used for cutting. For example, if you want to cut 2 meters of channel steel into two sections, you need to use a China cutting disc for metal. 2: different thickness The resin refining sheet is thick, the resin cutting sheet is thin, the cutting piece having a diameter of 100 is about 1 mm, and the thickness of the refining sheet having a diameter of 100 is more than 10 mm. The cutting piece is thin to minimize material waste and the resistance is small when cutting. If you use it to grind it, the side will be stressed, and if you grind it, you will be able to withstand the large lateral force. With it, it will not move. Resin cutting wheel abrasive material Abrasives commonly used in grinding wheels are brown fused alumina (A), white corundum (WA), black corundum (BA), black silicon carbide (c), etc. The most commonly used is brown fused alumina, because brown fused alumina has high hardness, high toughness, and sharp particles. It has strong applicability and low price compared with other abrasives. Brown fused alumina is divided into primary sand and secondary sand according to its reduction during smelting, mainly in chemical composition: Al2O3 content of primary sand is ≥94.5; Al2O3 content of secondary sand is <94.5%; generally 85% Left and right, and the Fe2O3 content is 4 to 5%; therefore, the secondary sand hardness is lower than that of the primary sand, but the price is also low; the brown corundum is suitable for the processing of various carbon steels and general alloy steels; the white corundum is higher in hardness than the brown corundum. It has large brittleness and small grinding heat. Because of its high price, it is used for heat deformation of workpieces. It is also used as a mixed abrasive for special material processing. The content of Al2O3 in black corundum is 70-85%, and the content of Fe203 is 7-9. Low hardness, poor cutting force, but the price is also cheap; black silicon carbide has high hardness and good brittleness, sharp cutting edge, good self-sharp performance, good thermal conductivity, and advantages in processing non-ferrous metals, plastics, rubber, and cast iron.