In the stone processing industry, the polishing efficiency of the curbstone polishing machine is one of the key indicators for evaluating its performance. As the core element in the polishing process, the polishing material directly affects the working efficiency and final polishing quality of the polishing machine. Therefore, it is crucial to have a deep understanding of the types, characteristics and applications of polishing materials.
Types and characteristics of polishing materials
The selection of polishing materials plays a decisive role in polishing efficiency and quality. Common polishing materials on the market mainly include diamond, silicon carbide, aluminum oxide and cerium oxide. These materials have their own characteristics and are suitable for polishing stones of different hardness and types.
Diamond: As the highest hardness polishing material, diamond has excellent wear resistance and is particularly suitable for polishing extremely hard stones such as granite and marble. However, the cost of diamond polishing materials is relatively high, and the degree of wear on the polishing machine is also relatively large, so it needs to be selected carefully.
Silicon carbide: This material has moderate hardness and good wear resistance, and is suitable for polishing medium hardness stones. The economy of silicon carbide makes it one of the widely used polishing materials in the stone processing industry.
Alumina: Although aluminum oxide has a relatively low hardness, it has excellent wear resistance and is suitable for polishing softer stones such as limestone and sandstone. Its low cost and slight wear on the polishing machine make it an ideal choice.
Cerium oxide: As a medium-hard polishing material, cerium oxide performs well in polishing high-gloss stone surfaces and has good self-sharpening properties. Its moderate cost makes it a preferred material for high-end stone polishing.
Polishing Material Particle Size and Shape
The particle size and shape of the polishing material also have a significant impact on the polishing efficiency. Generally speaking, the finer the particle size, the higher the surface finish of the polished stone, but the polishing speed is relatively slow; conversely, coarser particle size can speed up the polishing speed, but may affect the surface finish. Therefore, the selection of the appropriate polishing material particle size needs to be adjusted according to the stone type and specific polishing requirements.
The shape of the polishing material also affects its efficiency. Common polishing material shapes include spheres, flakes, and needles. Spherical polishing materials have good rolling properties during the polishing process and are suitable for polishing large areas of stone; flake materials are more suitable for processing the edges and corners of stone; and needle-shaped materials, due to their sharp shape, can penetrate into the tiny gaps on the surface of the stone, thereby improving the polishing efficiency.
Ratio and dosage of polishing materials
The influence of the ratio and dosage of polishing materials on the polishing efficiency should not be ignored. Reasonable ratios can give full play to the advantages of different polishing materials, thereby improving the polishing efficiency. For example, when processing high-hardness stones, the proportion of diamond polishing materials can be appropriately increased; while when polishing low-hardness stones, the proportion of aluminum oxide should be increased.
The amount of polishing materials should also be reasonably controlled. Excessive polishing materials may cause material accumulation during the polishing process, thereby reducing efficiency; insufficient amount may not achieve the expected polishing effect. Therefore, in actual operation, the amount of polishing materials should be accurately controlled according to the type of stone and polishing requirements to ensure the best polishing effect.