Which of the abrasives is more wear-resistant than emery, br

Writer： admin Time：2021-06-29 Browse：℃

In the abrasive, which is more wear-resistant than emery, brown fused alumina, or silicon carbide? First of all, the classification is wrong. Emery is the general term for brown fused alumina, white fused alumina, black fused alumina, and silicon carbide, while brown fused alumina and silicon carbide belong to diamond One kind. Many people who don't know how to do it are easy to make mistakes, so Starlight will explain it for you.
The Mohs hardness of brown fused alumina is 9.0, the Knoop hardness is 2000-2200 (kg/㎡), and the melting point is 2250°C. The Mohs hardness of white fused alumina and black fused alumina is the same as that of brown fused alumina at 9.0, while the Mohs hardness of silicon carbide is slightly higher, 9.2, second only to the hardness of diamond and boron carbide. So in contrast, silicon carbide in abrasive emery is more wear-resistant.
 
　　Brown fused alumina has the advantages of mineral properties, such as high hardness, good toughness, high specific gravity, and no harmful substances. It is a kind of natural environmentally friendly grinding material, which plays a very important role in the blasting and grinding industry. The main advantages of brown fused alumina are as follows:
1. Low dust and low ash content; 2. Strong grinding force and high efficiency; 3. Low loss; 4. High surface treatment quality; 5. Environmental protection and pollution-free; 6. Recyclable.
In addition to stable chemical properties and high temperature resistance, silicon carbide products have high thermal conductivity, low thermal expansion coefficient and high thermal shock resistance, so they are often used as a high-quality refractory material.
The main advantages of silicon carbide are as follows:
1. Wear resistance, corrosion resistance, high temperature resistance; 2. Good thermal conductivity; 3. High hardness; 4. Energy saving: Outstanding thermal conductivity and thermal stability, as a heat exchanger, reduce fuel consumption by 20% and save fuel by 35%.
　　 is the editor’s answer to the question "Which is more wear-resistant than emery, brown fused alumina, or silicon carbide in abrasives?". Also remind everyone that the price of brown fused alumina is much lower than that of silicon carbide, so it is also an abrasive, so you must consider your own use when choosing.