Abrasive sheet refers to the use of ultra-precision coating techniques, the selection of the micron or nanoscale powder abrasive (diamond, silicon carbide, aluminum oxide, silicon oxide, cerium oxide, etc.) and the uniformly dispersed high-performance adhesives, applied to high-strength PET polyester film (pOLYESTER) surface and then processed through high-precision cutting process.
Types and functions of the abrasive sheet
1, LP-87 or yellowish color (hard glass material multi-purpose);
2, LP-57 White (NOx species Multi-General);
3, LP-26 pink (NOx species generally multi-purpose, single-chip, multi-chip may be);
4, LP-66 red-brown or dark red (or multi-sheet multi-purpose tray large mirror);
5, GR-35 Gray (soft glass material multi-purpose).
Abrasive sheet according to their thickness dimensions are divided into: 0.5mm, 0.8mm, 1mm, 1.25mm and 1.5mm variety. Usually a thin chip processing abrasive sheet (0.5mm or 0.8mm), and a large piece of lens or mirror disk processing large diameter should be used when thick abrasive sheet.
1, abrasive sheet classification
Depending on the abrasive can be divided into: wet grind, grind dry, semi-dry RESEARCH.
Wet research: also known as deposited sand grinding, filling or the continuous liquid abrasive coated abrasive surface, abrasive between the workpiece and the lap constantly sliding and rolling, forming a cutting motion. Wet research generally used for coarse grinding, abrasive particle size coarse powder used in W7.
Dry research: also known as embedded sand grinding, the abrasive pressure uniformly embedded in the surface layer of the lap, grinding aids only in the lap coated with a small amount of fat stearate and the like. Dry research commonly used in fine grinding, abrasive particle size of the fine powder used in W7.
Semi research: Wet similar research, the use of abrasive paste is abrasive paste. Either by hand polishing, can also be carried out on a grinding machine. Workpiece by other processing methods must first obtain high machining accuracy prior to the pre-polishing, polishing the left margin is generally 5 to 30 microns.
2, abrasive classification
Abrasives and abrasive is a mixture consisting of water or oil. According to the hardness of the workpiece and the allowance, you can choose different specifications of the abrasive.
The abrasive according to the source can be divided into natural and artificial abrasive abrasive. Natural abrasives include diamond, corundum, garnet and so on. There Artificial abrasive diamond, artificial corundum, silicon carbide, boron magnetization.
3, abrasive disk and material classification
Grinding disc, comprising a disc, a baffle plate and a polishing pad; wherein the top disc includes several riveting element, a positioning plate, a top plate, a bolt, a lower positioning plate and a nut.