Grinding wheel characteristics analysis: particle size, hardness, binding agent, etc.
May 20, 2024| 1. Grain level
The grinding action of the grinding wheel mainly depends on the particles, so the grain level is one of the important properties of the grinding wheel. The method of indicating the grain level of the grinding wheel is through numbering, such as P60, P80, etc. The smaller the grain level number, the coarser the grain, the stronger the grinding effect of the grinding wheel, but the surface quality is relatively poor; the larger the grain level number, the finer the grain, the weaker the grinding effect of the grinding wheel, but the surface quality is relatively good.
2. Hardness
The hardness of the grinding wheel refers to the ability of the grinding wheel particles to resist wear and breakage during grinding. Hardness is one of the main factors acting on the workpiece in the grinding wheel. The hardness of the grinding wheel is usually indicated by its color. The darker the color, the higher the hardness. Generally speaking, for objects with high hardness, it is necessary to select a grinding wheel with higher hardness, and vice versa, it is necessary to select a grinding wheel with lower hardness.
3. Binding agent
The binding agent is the adhesive between the grinding wheel particles, which directly affects the strength and performance of the grinding wheel. According to the different binding agents, the grinding wheel can be divided into three types: inorganic bonded grinding wheel, organic bonded grinding wheel and ceramic bonded grinding wheel. Among them, the inorganic bonded grinding wheel has high strength and strong bonding; the organic bonded grinding wheel has slightly lower strength, but good grinding effect; the ceramic bonded grinding wheel has the characteristics of high strength and high grinding efficiency.
In short, the grinding wheel, as an important abrasive tool, plays a key role in industrial production. Only by understanding the performance characteristics of the grinding wheel and selecting the appropriate grinding wheel according to needs can the processing efficiency and quality be improved.