PDC is a new superhard material, which is synthesized with medium-high cobalt carbidee and synthetic diamond polycrystalline under high temperature and high pressure. The bits made with PDC have superior characters compared with traditional carbide bits, whose service life is 10 to 30 times than the later, and the time-saving performance is 50% higher.
PDC cutters(Polycrystalline Diamond Compacts)are made by sintering micron sized diamond particles onto a tungsten carbide substrate, with the characters of high hardness and wear resistance, which can be widely used for oil drilling, geographical exploration, coal mining and machinery processing, etc.
PDC cutter's characters: high impact toughness and wear resistance, service time is 10~20 times longer than normal carbide materials, easy to weld; heat stability is good below 650ºC, carbonization will turn up above 750ºC and the impact toughness and wear resistance will be decreased as well. So the welding temperature should be kept below 650ºC in order to ensure the product's service time.
1. High wear resistance and high impact toughness;
2. Without special requirements for instruments;
3. Multiple free cutting surfaces, high drilling efficiency, long service life, strong bits diameter protection capability.
4. Short drill time, low worker labor strength and high comprehensive performance.
PDC for geological drilling combines closely and has little binding agent. It is suitable for soft and medium rock formations with higher heat stability, wearresistance and impact toughness, which can be used in the field of mine supporting ad geological exploration.
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