What kind of drill is used to drill sandstone?
The A is equipped with the drilling tool is best to use the pipe clamp to fasten, does not use the tooth clamp fastening, the demolition drill bit.B) must have a clean, non metallic foreign body inside the hole.(c) the drill hole into the hole to pay attention to the slow and stable, to prevent the hole in the middle of the rock core bit.D drill bit into the hole to be opened after the water can be drilled into the normal can be addedPressure, speed drilling.
diamond bitI rely on the quality of professional geological exploration resources, through the practical study of a variety of strataElectroplated diamond bits are widely used in petroleum, metallurgy, water conservancy, construction, highway,Geological drilling, such as railway, bridge, coring test, especially in hard rock (7-12)The drilling efficiency is high, the drilling quality is good, and the core recovery rate is high,
Diamond bit.The rock breaking effect of diamond bit is accomplished by diamond particles. It is necessary to know the rock breaking effect of single diamond in order to know the rock breaking effect. In hard rocks, a single diamond in drilling pressure under the action of rock in high stress state (about 4200-5700MPa, some data suggest that up to 6300MPa), the change of lithology rock from brittle to plastic. Single diamond into the formation, under the action of torque cutting rock, the cutting depth is basically equal to the depth of the diamond grain intake. This process is called as "ploughs" plow cutting diamond bit.
