Corundum Abrasive Manufacturers Share Abrasives With High Temperature Resistance
1 Attending
  • machineunique machineunique

Friday, July 5, 2019 10:31 am - 1:31 pm

Shuanglin Industrial Park, Huzhou City, Zhejiang Province
Shuanglin Industrial Park, Huzhou City, Zhejiang Province
Huzhou
313000
China
Marker
Abrasive is a particulate material with high hardness and a certain mechanical strength for the manufacture of abrasive tools or for direct grinding and polishing. It is widely used in the grinding of metal parts, alloy tools, ceramics, glass, rubber, plastics and other materials. The following Corundum Abrasive manufacturers.


To share the properties of abrasives.

1, higher hardness than the workpiece
Abrasive hardness is higher than that of the workpiece to be ground, which is the primary condition for grinding. Otherwise, it is impossible to grind debris from the surface of the part during processing. When the other conditions are the same, the harder the abrasive, the better the wear resistance and the better the cutting performance.

2. It can process the abrasive grains of different sizes and has the characteristics of uniform and uniform particle size and shape. The grinding process is different from the cutting process. It is the use of numerous fine cutting edges composed of many particles on the surface of the abrasive tool to strip the processed workpiece. The surface of the particles. Therefore, in order to obtain the necessary processing precision and efficiency, the abrasive must be processed into particles of a certain size and uniform shape.

3. Appropriate resistance to breakage, moderate self-sharpness when the abrasive cutting edge is blunt
For the grinding process, the toughness of the abrasive particles, ie the ability to resist chipping, is also an important indicator. If the toughness is too low, the grinding will become blunt and will not break, which will reduce the grinding efficiency. Therefore, the abrasive particles should have a fairly sharp cutting edge and a certain degree of brittleness so that they can be sharpened by themselves during the working process, that is, they can be cracked under a certain pressure to expose a new sharp blade for grinding. This property of abrasives is generally referred to as self-sharpness.

4. High temperature resistance, maintaining its inherent hardness and strength under high temperature grinding
When the grinding tool is working, a large amount of heat often occurs, and the local temperature can be reached at a high temperature, and the temperature rise is greater at heavy load grinding and high-speed grinding, up to 1500 °C.

Therefore, diamond has the highest hardness, but when it exceeds 800 °C, it becomes carbonized and becomes graphite. The hardness and strength drop sharply, which limits its application to some extent.



information about corundum abrasive: https://www.zhongyun-machine.com/product/abrasive/