As a necessity for industrial construction, abrasives can promote the process of industrialization to a large extent. At present, two-thirds of the industrial abrasives are still artificial Fused alumina(corundum) and silicon carbide.
In the field of abrasives, the sodium content of corundum has always been a headache. As an impurity in white corundum, its content directly affects the performance of white corundum abrasives. The sodium content in the white corundum abrasive is too high, which will generate a certain amount of β-alumina, which will affect the performance of the white corundum. The most obvious effect is that the crystal hardness of white corundum is reduced, the cutting ability is reduced, it is easy to be pulverized and broken, and the thermal stability is low.
The Na2O in white corundum mainly appears in the form of Na2O·11Al2O3. For example, the alumina raw material contains more than 0.6% sodium oxide, and the white corundum produced with it will contain more than 10% β-Al2O3. Therefore, white corundum with high sodium content has relatively poor comprehensive properties, which limits its application in the field of refractory materials and high-end abrasives.
Yufa Abrasives Group is a high-quality enterprise that has made its own brand in the alumina industry and adheres to the high-quality and high-end line. Improve core technology through continuous improvement and innovation. From the upstream of raw materials to the downstream of fine alumina, Yufa strictly controls each link and also invests more costs in the production process. Although it started from relatively traditional fields such as abrasives and refractory materials, Yufa has always kept pace with the times and conformed to the requirements of the times, forming a parallel model of large-scale brand products and refined innovative new products.