The material of DTH drill PDC DTH drill Borehole Drill Bits bit has a close relationship with work efficiency, good materials can effectively improve the service life of the DTH drill, help staff effectively mining in mines, it is and DTH drill steel body materials has a direct relationship, our colorful diamond DTH drill products, always pay attention to the quality of your goods, so for the selection of raw materials, we have been very pay attention to production personnel. As a cutting tool people use twist DTH drill bit has a history of more than one hundred years. Due to twist the DTH drill core part is completely negative cutting Angle, cutting resistance is very big, so the twist DTH bit cutting force by 50% to 60% is caused by the DTH drill core. Coupled with the factor of steel, so the twist DTH bit could not have done a lot. Processing more deeper hole must be expanded from drill holes to start step by step, until it met the requirement of the bore hole size.
Hollow DTH bit has expanded the DHD Drill bit advent of DTH bit cutting range, the use of relatively small power can deep hole processing large hole, also can do the size of the hollow DTH drill is very big, only used on cutting edge better or the best steel, not only reduces the manufacturing cost, also the thought impossible way into processing technology was possible. Blue steel tools in henan province science and technology co., LTD., has been trying to study macroporous technical problems of deep hole processing, not only design and develop the small size of high speed tool steel hollow DTH bit mass production capacity, and formed on the steel structure, sheet metal and railway has played a large role, in addition, development and design of the large size of high speed steel and carbide hollow DTH drill, someone according to the effect of DTH bit also called nesting DTH drill or core DTH drill.
Some hard rock to use enhanced diamond dth hammer bit DTH drill, some soft rock, using ordinary products. In some larger brittle rocks such as sandstone, limestone, etc.), diamond particles on DTH bit under the effect of wob torque at the same time, the volume of broken rock is greater than the diamond particle rotation and eat into the volume. When the pressure is not big, only along the movement direction of the diamond form small groove, increased pressure will make little rock broken, on either side of the groove depth and the section size of more than diamond grains. Composite patches on the DTH PDC bit are the main components, compact damage, the DTH bit will be scrapped. So, to understand the mechanism of rock fragmentation is really important.