The development of diamond saw blades
The progress of material technology is the reason for the continuous breakthrough and development of diamond saw blades. The continuous innovation of metal bond, the continuous research and development of the fusion of metal materials, and the continuous optimization of the particle size of diamond powder are the reasons for the development of diamond saw blades. The performance is essentially the root cause of the improvement. Science and technology is the primary productive force, and it is also applicable in the diamond industry.
The real reduction in the threshold of diamond saw blades is that in the 1970s, synthetic diamonds began to replace natural diamonds in large quantities. The mass production of synthetic diamonds allowed natural diamonds to be completely separated from the industry, thereby greatly reducing the production cost, and the controllability of the particle size and structure of synthetic diamond also improves the stability of diamond powder. In addition, in powder metallurgy, the birth of laser welding technology allows the segment and the blade body to be closely combined, which not only reduces the cost of diamond saw blades, but also improves the performance of diamond saw blades to another high stage.
With the improvement of the diamond saw blades performance, diamond saw blades have gradually transitioned from the earliest cutting jade, wood, aluminum and other materials to the field of stone sawing processing. In this transition process, diamond technology and metallurgical technology are the core factors. The most fundamental factor is the continuous improvement of the hardness of the diamond saw blade segment. There is an old Chinese saying that The stones of those hills may be used to polish gems. Hardness directly determines the cutting ability of diamond saw blades. At present, the hardness of diamond blades can reach Mohs hardness 10-11, while the Mohs hardness of stone is about 6-8. In this way, the use hardness to overcome hardness is the cutting principle of diamond saw blades.
Generally speaking, the Mohs hardness largely determines the segment sharpness and the life. However, in practical applications, there will be two bad situations for the cutter head with too high Mohs hardness. First, The diamond loss exceeds the consumption of the segment bond, then such a saw blade will not be able to cut, the blade body will be distorted, the diamond saw blade will be damaged, or the slab will be broken. In more serious cases, the saw blade will rise the cutting machine main shaft that causes mechanical damage. Second, the diamond loss is lower than the loss of the segment bond, so it is easy to peel off the diamond powder.
According to the quality of diamond saw blades, there are mainly super-class Italian and Korean saw blades. They use good materials and advanced technology, but they are expensive. The second batch is saw blades produced by Chinese manufacturers, occupying stone with cost-effectiveness. The third batch of saw blades for developing countries, such as saw blades produced in India, Indonesia and other countries, are mainly low-priced products