How to extend the cutting life of diamond segment
Diamond is the hardest material in nature discovered by humans so far. In the cutting process, the wear of stone powder to diamond is extremely small. There are three main reasons for the wear of diamond. First, the strong collision between diamond and stone. The force causes the diamond to break and shatter; second, the diamond generates high heat during the cutting process, and this heat cannot be dissipated, resulting in high-temperature carbonization of the diamond, causing the diamond to become brittle and causing consumption; third, the use of poor grade diamonds, In the process of cutting the stone, it is constantly smoothed. In order to avoid these problems, it is very important to choose diamond that matches the hardness of the stone during the cutting process. Then, the amount of cooling water and the use of coolant during the cutting process are also effective methods to help improve the service life of the diamond segment.
Of course, the main problem with the diamond segment life is the matrix. The main reason for most of the diamond segment are not durable is that the material of the matrix is too soft or not wear-resistant in the process of cutting the stone The diamond powder will fall off in large quantities, which is the main reason for the insufficient diamond segment life.
The matrix, also known as diamond bond, is mainly composed of metal powders, such as copper, iron, cobalt, silicon carbide, tin and other metals. Since it is composed of different metal powders, the matrix will appear if the content of various metals is inconsistent. The hardness is different, but no matter which kind of matrix, its hardness is lower than diamond, so in the process of processing stone, especially granite stone, the use of circulating water will cause the stone powder or particles to affect the matrix twice. Wear, this kind of wear is very fatal, and it is also the most important factor affecting the life of the diamond segment.
In order to reduce the wear of stone powder and stone particles on the diamond segment, we can adopt several methods. When the stone powder is purified, you can choose: natural sinking method, mechanical removal method, chemical flocculation method. The natural sinking method is more suitable for removing stone powder with relatively large particles, but it takes time to filter. The best method at present is to filter the water inlet with a mesh screen. The mechanical removal method and chemical flocculation method are suitable for removing small and medium stone particles powder are widely used. In addition to these, in the cutting process, increasing the water intake, the design of the diamond segment with a multi-layer non-working layer structure, the design of the upper width and the lower narrow, etc. can improve the chip removal and increase diamond segment life.