How to improve the quality of diamond segment

With the continuous development of the stone processing industry, the important tool in stone cutting tools - diamond segment is constantly changing in quality. There are several improvement measures to improve the quality of the diamond segment. Let's take a look in detail below:
1. Improvement of diamond quality. The grade of diamond is mainly improved in the following aspects:
1) The improvement in strength mainly solves the problem that the diamond is broken rapidly due to insufficient strength of the diamond segment during the cutting process. The improvement in this aspect directly solves the frequency of diamond breaking, thereby increasing the utilization rate of diamond;

2) The stable performance is mainly reflected in the reduction of the diamond crushing surface.  
It mainly solves the problem that the diamond falls off in a large area during the cutting process of the diamond segment. It uses layering, partitioning, and block methods to solve the problem of diamond crushing after being stressed, so that the diamond is broken in a small area, reduce the broken surface. And the use efficiency of the diamond is improve in order to reduce the degree of diamond fragmentation, thereby increasing the utilization rate of diamond;

3) Coarse particles, if the diamond solves the previous two problems, the diamond with coarse particles will have greater advantages in the use process. For example, if the cutting distance is large, it is easier to form a cutting waterway, better to form a trailing phenomenon, and improve the sharpness of cutting.

4) Excellent thermal stability. If the diamond has higher thermal stability, if it is not affected during the sintering process and the welding process, then the diamond segment can achieve better performance.

2.Formation of strong carbides. The reason why the diamond can be firmly fixed in the metal bond is that the diamond and the matrix form a strong carbide, which allows the matrix and the diamond to form a firm and inseparable whole. The force is called the holding force. In the process of studying the improvement of the quality of the diamond segment, the improvement of the holding force of the metal bond to the diamond has become the direction of scientific research.

How to make diamond carbon and metal powder form strong carbides under high temperature and high pressure is a problem that is being solved all the time. The better the holding force, the stronger the cutting ability of the diamond segment. And the stability of the segment, the cutting life and the cutting sharpness can be guaranteed. The holding force is the appearance of the quality of the diamond, and the formation of strong carbides is the core principle.

At present, people use titanium plating, chrome plating, nickel plating, tungsten plating and other processes to coat diamond with a layer of metal, so as to help diamond form a stronger compound. In actual performance, the holding force can be increased, but the most obvious performance is the diamond strength. It can be improved, and the cutting ability becomes stronger is the biggest improvement.

3.Ultrafine powders and pre-alloyed powders. In the production of special saw blades, ultrafine metal powder and pre-alloyed powder should be used. The refinement of metal powder is beneficial to reduce the sintering temperature and increase the hardness. The use of pre-alloyed powder can prevent premature loss and segregation of low-melting point metals, which is beneficial to the elastic limit and yield strength of sintered products, increases the holding force of diamond, and can also reduce the sintering temperature and holding time.

4.Vigorously promote protective gas sintering equipment. In the manufacturing and production process of the diamond segment, oxidation greatly affects the stability of the diamond segment and various chemical reactions during the sintering process of the diamond segment. Through large-scale experiments, it is found that the diamond segment is under the protection of rare gas. The stability of the diamond segment has been significantly improved.
All of the above are the problems we need to face in terms of improving the quality of the diamond segment during the cutting process. It not only puts forward higher requirements for diamond manufacturers, but also puts forward higher research and development requirements for diamond tool companies. In addition, the future demand of the market is clarified, the development direction of the diamond industry in the future is pointed out, and the road for the development of the diamond tool industry in the future is also pointed out.