This process as "plough" so Mining Drilling Equipment called plough type cutting action of diamond bit. For different strata, using the principle of rock and bit products is also different. Some harder to use enhanced diamond bit rock, soft rock, the use of ordinary products. In some larger brittle rocks such as sandstone, limestone, etc.), the diamond grains on the 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 diamond compact bit is the main components, compact damage, the bit will be scrapped. So, to understand the mechanism of rock fragmentation is really important. Diamond bit is widely used in all kinds of rock drilling, in the face of different rock ore, we should take different measures to solve it. Hard rock is the easiest damaged drill equipment, this kind of rock during mining should pay attention to what content. Rigid compact weak abrasive formations, say again "skid" formation. Slipping formation comparing with the general formation has a different time:
1, large rock hardness, high silica content. This rock drilling tools kind of formation rock pressure into the hardness is up to 5000 MPa commonly, partly between 5500 ~ 6500 MPa, individual and even up to 7000 MPa.
2, high strength. These strata rock forming minerals, particle size is 0.01 ~ 0.2 mm more, siliceous cementation, and resultant force between particles is large, compact structure, high overall strength, the uniaxial compressive strength of 150 mpa or higher.
3, abrasive weak. Because of the low drilling time, less dust and rock powder particles, the drill bits wear little, king kong stone to the blade.
Improve the drilling efficiency of this kind of formation has been our diamond drill bit manufacturer concerns, produce is suitable for all kinds of hard rock reinforced diamond bit product is our efforts in the direction of the staff. To solve this problem, first of all those who want an attention is the quality problem of the bit.
Diamond strength decisive effect to the mining dth bit drilling efficiency, the higher the strength of the diamond, the drilling pressure, the greater the drilling rate is higher. But is not to say that the diamond intensity, the higher the better. Because not only should consider the nature of drilling rock, consider the unit price of diamond problem, must consider economic benefit has made. Bit quality guaranteed, they can better apply to all types of rock drilling.