Views:0 Author:Site Editor Publish Time: 2017-08-30 Origin:Site
1,6-7 grade complete homogeneous rock selection of artificial poly crystal table with diamond drill bit and coarse grain table diamond drill bit, particle size of 10-20 tablets / carat, carcass hardness should be around HRC45.
2,7-8 grade medium grinding, the more complete the use of rock formation size of 20-40 tablets / carat in the table table and drill head and 60 head with thick pregnant bit, the carcass hardness of HRC40 or so.
3,9 or more moderate grinding, the more complete selection of 80 sets of fine rock bit or grade good size of 40-60 tablets / carat fine grain table drill, the carcass hardness should be HRC35- 40 or so.
4, grinding strong rock (such as quartz sandstone) should be used in the carcass hardness, the higher the concentration, the smaller size of the pregnant bit or grade good, fine grain table bit (60-100 /carat).
5, drilling joint development, the construction of complex fractured rock formation, should be used in the hardness of the mother with large hardness of the drill bit or fine grain table drill bit, and must use double pipe drill.
Diamond core bit should be selected according to the specific rock layer to consider diamond concentration, and carcass hardness.
Wuxi Geological Drilling Equipment CO., LTD
Add: No122 Xizhang Road,Gushan Town,Jiangyin City,Jiangsu Province