Properties of Synthetic Diamond Micropowder

From the perspective of the development of diamond powder manufacturing technology, there are still many problems. For example, in terms of deagglomeration of nano-scale diamond powder, some people use the method of surface modification, some people use the critical drying method to solve the existence of hard agglomerates in the powder drying process, and the formulation of new standards, etc. All in all, With the unremitting efforts of our country's industry technicians, the manufacturing level of diamond micropowder in my country is constantly improving. We can proudly believe that under the same material and equipment conditions, the diamond micropowder we manufacture has the highest cost performance in the world. The diamond powder of our country is still relatively rough, especially the subdivision is not very detailed, which is also our future task and development goal.

 

High wear-resistant diamond powder

 

Most domestic diamond micropowders are made of I-type single crystal diamond as raw material. Due to the inherent characteristics of I-type materials: high impurity content and low strength, they cannot meet the product requirements of high-end market for diamond micropowder. A few domestic diamond micropowder manufacturers use single crystal diamond of type II or III as raw material to produce diamond micropowder. According to market feedback, the processing efficiency of this micropowder is much higher than that of ordinary diamond micropowder, and the wear resistance is increased by more than 30%. Effective for processing polygonal diamonds; components such as silicon and germanium diodes can be processed to the highest level of mirror finish.

 

Special diamond powder

 

Different diamond powders have their own characteristics. According to the different uses of diamond powder, a few domestic manufacturers are divided into: cutting tool (PCD), petroleum composite (PDC), diamond wire saw, resin bond abrasives, metal bond products, grinding paste, grinding fluid and other special diamond powders. meet different needs. This is the right direction for my country's diamond powder to adjust its product structure and develop towards specialization, and it is also an important step for my country's diamond powder to catch up with the world's advanced level.

 

Polycrystalline diamond powder is characterized by brittleness. Its particle shape is irregular quasi-circular block, and its surface is rough and uneven. When the particles are subjected to stress, their brittleness leads to particle fragmentation, resulting in new sharp Cutting point, self-sharpening is better. This kind of diamond powder is more ideal for the manufacture of resin-bonded grinding wheels, etc., and has a gentle fine grinding and polishing effect.

 

There is no doubt that diamond micropowder is an indispensable abrasive for the development of high, precise and sharp products. Its application has a very broad prospect, and its application field is constantly expanding.

 

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