Abstract Diamond composite sheet is made of diamond micropowder and cemented carbide sintered under high temperature and high pressure. It is a composite material composed of diamond and cemented carbide matrix. The diamond composite sheet not only has the performance of the traditional cemented carbide, but also has the high hardness and wear resistance of the diamond material...
The diamond composite sheet is made of diamond micropowder and cemented carbide sintered under high temperature and high pressure, and is a composite material composed of diamond and cemented carbide matrix. Diamond composite sheets not only have the properties of traditional cemented carbides, but also have the advantages of high hardness and wear resistance of diamond materials. Therefore, diamond composite sheets are widely used in oil and gas drilling, geological exploration, coal mining drill bits and machining. Tools and other industries have greatly improved work efficiency. Nowadays, diamond composite sheets have been industrialized, with complete specifications and varieties, and the synthesis technology is continuously optimized, which makes the interface of diamond composite sheets firmly bonded, the polycrystalline diamond layer is more uniform, thermal stability, wear resistance and impact toughness. With the large-scale development of synthetic presses and increasing synthetic pressure, the use of new high-efficiency catalysts and new processes, diamond composite sheets will enter a period of rapid development, in order to meet the development needs of many industries in the future, The development direction of diamond composite sheets mainly has the following points:
1. The polycrystalline diamond layer is continuously thickened, and the life of the product is continuously improved.
2. The diamond grains are getting finer and finer, and the comprehensive performance (wear resistance and impact resistance) of the product is further improved.
3. The synthesis process is continuously improved to reduce the difference in performance (impact resistance) at different positions of the composite sheet.
4. The diameter of the composite sheet is continuously increased, and the product utilization efficiency can be improved when cutting into a blade.
5. Optimization of interface structure, by increasing the groove and changing the interface structure, to reduce the residual stress and stress concentration of the interface.
Henan Sifangda Superhard Materials Co., Ltd. mainly produces diamond composite products for petroleum and natural gas, diamond composite sheets for coalfield mining, and PCD blades for cutting tools.
Diamond composite sheet for oil and gas bit
Diamond composite sheet for coal field and mine
The diamond series PR series of Sifangda oil and gas drill bit uses high-grade diamond micropowder as raw material, adopts new production process and detection technology, and has high wear resistance and impact resistance. In the process of use, the customer is highly recognized.
The coal-field/mine diamond composite sheet produced by Sifangda adopts a new type of high-efficiency catalyst and production process, featuring high hardness, strong wear resistance, fast footage, high efficiency, less disintegration and economical and practical features in geological exploration and coal fields. Drilling and drilling bits and other fields have been widely used.
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