How to optimize the hardness of the Polishing Grinding Disc by adjusting the material composition?
Publish Time: 2024-11-05
Selection and ratio of resinResin is the key component of the Polishing Grinding Disc, and different types of resin have different hardness characteristics. For example, phenolic resin has high hardness and heat resistance. Properly increasing the proportion of phenolic resin in the formula can effectively improve the overall hardness of the Polishing Grinding Disc. At the same time, epoxy resin has good toughness and can be used in combination with phenolic resin. By adjusting the ratio of the two, the hardness can be improved while ensuring a certain toughness. When a high-hardness grinding disc is required, the ratio of phenolic resin to epoxy resin can be adjusted to 7:3 or higher; if there are certain requirements for toughness, a ratio of about 6:4 can be used.Influence of abrasivesThe type and content of abrasives are crucial to the hardness of the Polishing Grinding Disc. Common abrasives such as silicon carbide and aluminum oxide have high hardness. Increasing the proportion of abrasives in the grinding disc can increase the hardness of the grinding disc. For example, by increasing the volume fraction of silicon carbide abrasive from 30% to 40%, the disc can resist wear more effectively and maintain its shape during use, thereby achieving a better polishing effect. In addition, choosing finer-grained abrasives and distributing them reasonably can also improve the hardness uniformity of the disc to a certain extent.The role of additivesSome additives can assist in optimizing the hardness of the Polishing Grinding Disc. For example, adding an appropriate amount of lubricant additives such as zinc stearate, although its own hardness is not high, can improve the internal structure of the disc, make the resin and abrasive combine more closely, thereby indirectly improving the hardness of the disc. There are also some reinforcing fiber additives, such as glass fiber, which are evenly dispersed in the resin matrix, which can enhance the structural strength of the disc like a skeleton, thereby improving the hardness. At the same time, nano-scale additives, such as nano-titanium dioxide, can fill the tiny pores in the resin, increase the density of the material, and improve the hardness of the disc.By scientifically adjusting the types, proportions and addition methods of these material components, the hardness of the Polishing Grinding Disc can be accurately optimized to meet the needs of different polishing scenarios.
