Application
Aluminum oxide abrasive is widely used in the manufacture of grinding wheels and can be used to grind various metal and non-metal materials, including stainless steel, quartz glass and ceramics.
In the petroleum industry, it can be used for mud treatment, improving oil well drilling efficiency and reducing drill bit wear.
It can also be used to manufacture wear-resistant, high-strength cutting tools, such as drills, milling cutters and knives, etc.
It has insulating properties and can be used as an insulating material for electronic components.
Can be used for ship repairs including removal of bio-fouling and rust pits etc.
Compared with silicon carbide abrasives, the hardness of Aluminum oxide abrasive is slightly lower, but it is more suitable for processing materials with higher hardness. Compared with diamond abrasives, aluminum oxide abrasives have lower cost, but the grinding efficiency is slightly lower. According to the specific processing needs and requirements, the appropriate abrasive type can be selected.
Production Process
Different manufacturers may use different sources and purities of alumina feedstock. High quality alumina raw materials can produce superior abrasive products.
The production of aluminum oxide abrasive usually involves melting alumina raw material at high temperature and forming hard crystals through specific process methods. The temperature, time and furnace atmosphere of melting may vary between manufacturers, affecting the hardness and crystal structure of the abrasive.
The alumina crystals after smelting usually need to be refined and classified to obtain abrasive products of different particle sizes. The refinement process can adopt physical or chemical methods, such as grinding, sieving or suspending agent sedimentation, to meet the needs of different users.
Some Aluminum oxide abrasives may undergo surface treatment, such as coating with special materials or adding lubricants, to improve their performance and stability during grinding.
Some may require sintering to enhance the hardness and stability of the abrasive.
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