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Natural abrasives

发布时间:2019-8-30 9:35:24    字体大小:【】【】【

The Difference between Natural Abrasives and Artificial Abrasives

Abrasives can be divided into natural abrasives and artificial abrasives according to their source of raw materials. Oilstone is the only natural abrasive tool commonly used in machinery industry. Artificial Abrasives can be divided into five categories according to their basic shape and structural characteristics: grinding wheel, grinding head and oil stone. Abrasives above the sand tile are generally referred to as consolidated abrasives and coated abrasives. In addition, it is customary to classify Abrasives as a class of abrasives.

In the process of using abrasives, when the abrasives are worn bluntly, the abrasives fall off partly or completely from the abrasives due to the fragmentation of the abrasives themselves or the fracture of the binder, while the abrasives on the working face of the abrasives constantly appear new cutting edges or continuously expose new sharp abrasives, so that the abrasives can maintain the cutting performance for a certain period of time. This self-sharpening of abrasives is a prominent feature of abrasives compared with general tools. As early as the Neolithic Age, human beings began to use natural grinding stone to process tools such as stone knives, stone axes, bones, horns and teeth; in 1872, ceramic grinding wheels fired with natural abrasives combined with clay appeared in the United States; around 1900, artificial abrasives came out, and various abrasives made with artificial abrasives successively. It has created conditions for the rapid development of grinding and grinding machine. Since then, the proportion of natural abrasives in abrasives has gradually decreased.

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