Tapered Bit is often used in high-strength DTH rock drilling operations, so lubrication is necessary. DTH drill manufacturers tell you the importance of lubrication.
1) Anti-corrosion effect. Impact parts are susceptible to corrosion by compressed air and chemicals in the water during drilling, and the corrosive effect exists together with those in the parts. It will cause the parts to be severely reduced; corrosion will also cause the cracks to further expand. The damage of the parts may be directly caused by the rust area of the corrosion pit. Therefore, avoiding corrosion is one of the important effects of lubrication;
2) Sealing effect. It is suitable for lubricating the seal between the moving parts of the impactor to avoid reducing the power of the impactor due to poor sealing;
3) Reduce the conflict loss of moving parts. What's more serious is that excessive conflict caused by lack of lubrication will cause small summer clothes to be touched on the surface, such as crack propagation will cause damage to the parts. In addition, the overheating of the surface caused by excessive conflicts will cause some softening and plastic deformation of the metal, which will eventually lead to the damage of the cylinder and the piston.
Requirements for the quality of lubricating oil
1) High liquid film strength;
2) No smoke and poisonous gas can be discharged;
3) No matter in cold or hot gas, it does not constitute a sticky residue;
4) No corrosion under any conditions;
5) Eruption or disturbing the movement of the valve plate cannot easily occur;
6) It can be fully lubricated under the conditions of high drilling speed, high temperature and low temperature;
7) It can quickly lubricate the parts that need to be lubricated;
8) It has high oiliness.
After the above understanding, I believe that everyone knows the importance of the use of lubrication for Drill pipe. Because of the harsh working environment of the machine, we must do a good job of lubrication in daily use.