Diamond segments have been developed in China for more than 30 years From the beginning since no one cares about them and to occupy most of the diamond segment market in the world, from scratch and completely relying on imports to the final formation of high, medium and low-end comprehensive the quality of diamond segments products, the development process is difficult and turbulent This article briefly describes the history and development of diamond segment products, showing the development history of diamond segments in China in an era

The diamond segment is a combination of two parts: diamond and metal bond powder The metal bond is also called metal powder It is a mixed powder material mixed with various metal materials This powder can be adjusted by These metal powders are proportioned, and some manufacturers will choose prefabricated metal powders This has the advantage of reducing the requirements on the formulation and shortening the segment production and molding time period

The two most critical quality manifestations of diamond segment are sharpness and lifespan When a set of segments are used on a saw blade, the lifespan is very high, but the sharpness is not good In such a situation, we need to upgrade the segment formula In the case of a guaranteed lifespan, to increase the sharpness of the segment, then how to increase the sharpness of the segment? This is the problem to be solved in this article

diamond segment are often used to diamond saw blade serrate, can also be used for metal mill, CNC shaping tools, grinding tools, concrete hollow drill tools such as grinding parts processing, the advantage is to reduce the cost of the use of these tools, especially matrix expensive big saw blade and the bit of matrix reuse saves a large amount of processing cost This paper mainly introduces the whole process of the diamond segment on the diamond saw blade in the actual production and application, so that we can better understand the technology and use of the diamond segment

Although diamond segments are non-standard products, there are still many grades that can be divided according to their specific performance For example, good diamond segments have much higher life and cutting efficiency than bad ones Most people are very unfamiliar with the appraisal of the segments, so it is impossible to distinguish the quality when buying the segments This article will let you know several basic segments quality appraisal methods through a simple comparison

diamond segment in the welding process will involve the arcing process This process is mainly to increase the contact area of the welding surface, and remove the oxidation part of the diamond segment Through arcing processing, the diamond segment is better integrated with the substation surface, thus forming a tighter mechanical stress structure, with better impact resistance and welding strength

In the production process of diamond segment, the most important process is the pressurized sintering process In this process, high temperature and high pressure make the material inside the segment become dense, making the structure of the segment more compact, and the density of the segment becomes larger, thereby forming a more stable structure and stronger holding power

Diamond segment in the production process, there will be a variety of problems There are problems in the production process of improper operation, there are formulations and combination of binder in the process of various reasons Many of these problems have affected the use of the segment, in general, such a situation, diamond segment is not able to use or cannot work very well, affecting the production efficiency of slate or even increase production costs and so on

In the welding process of diamond segment, the following requirements must be followed, otherwise the diamond segment produced will either not conform to the stone processing specifications, or there will be quality problems, resulting in the reduction of cutting life and efficiency Diamond segment welding

In the production process of diamond segment, the most important process is the pressurized sintering process In this process, high temperature and high pressure make the material inside the segment become dense, making the structure of the segment more compact, and the density of the segment becomes larger, thereby forming a more stable structure and stronger holding power

The sintering process of diamond is as follows: customized graphite abrasive → applied mould release agent → cold pressed billet (order the working layer and non-working layer as finished segments)→ upper die frame → adiabatic partition on pad → tighten fastening screw → feed into hot press preloading (preloading pressure is 30-40% of hot pressing pressure)→ power heating, heat preservation and pressure keeping (pressure holding pressure is 20-30 MPa)→ pressure relief (down the sintering pressure to 30-40% of sintering pressure) →cooling → unloading

calculate the pressure required by the cold pressing process of diamond segment