H22 drill rod manufacturers believe that in drilling and blasting projects, due to the limitation of borehole diameter, the cross-sectional area of rock drilling tools is very small. However, under severe wear and corrosive media conditions, this slender rod needs to withstand the tensile, compressive, bending and torsion cyclic stresses imposed by high-frequency, high-impact power rock drilling tools. Depen
H22 drill rod manufacturers believe that in drilling and blasting projects, due to the limitation of borehole diameter, the cross-sectional area of rock drilling tools is very small. However, under severe wear and corrosive media conditions, this slender rod needs to withstand the tensile, compressive, bending and torsion cyclic stresses imposed by high-frequency, high-impact power rock drilling tools. Depending on the load and rock hardness, its drilling life is usually short. The steel grade of the drill tool must first meet the basic characteristics of the drill tool.
H22 drill rod manufacturers believe that the main resistance indicators of drill bit fracture under stress corrosion conditions are tensile and compressive fatigue strength. The steel used for drilling tools needs to have sufficiently high fatigue strength, appropriate plasticity and toughness, especially good toughness, to ensure that the steel has low fatigue notch sensitivity. The drill rod works under cyclic stress, which requires the steel to have high cyclic toughness. Only with good cyclic toughness can the steel have good vibration reduction performance and reduce the propagation rate of fatigue cracks in the drill tool. The drill tool works in a very harsh environment, and the steel used for the drill tool also needs to have a certain corrosion resistance, mainly corrosion resistance to the atmosphere and mineral water.
H22 drill rod manufacturers believe that rock drills are usually used in infrastructure construction, road construction or mining. They are simple and effective work exercises. Through the design of mechanical principles, drill tools can play a huge role in stone mining. Play a huge role.
H22 drill rod manufacturers believe that rock drills support the operation of drill tools and have strong impact. It requires power support from steam and oil. At the same time, pay attention to the safety and reliability of the small tail. How to use drill tools correctly not only affects the safety of operations and avoids accidents, but also affects the service life and work efficiency of drill tools. First of all, when a new rock drill tool is used for the first time, it must be disassembled and the anti-rust grease inside must be cleaned. When reinstalling, lubricating oil is required to make all parts run smoothly. After the handle is ready, you can connect the rock drill tool to see if it works properly.
Secondly, H22 drill rod manufacturers believe that the lubricating oil used in rock drill tools is about 30# oil, and there are very strict requirements for the container used for storage. The container needs to be cleaned and covered to prevent dust and debris from entering the container. At the same time, the water pressure and wind pressure at the drilling site also have a great impact on the use of rock drill tools. The above are some knowledge points about rock drilling tools. I hope everyone can study and understand the relevant knowledge carefully.
H22 drill rod manufacturers believe that too low water pressure will lead to poor buffering effect, and too high water pressure will cause water to enter the machine, corrode the parts inside the machine, and affect work efficiency. Too high or too low wind pressure will also cause component damage or part corrosion. Therefore, when using rock drilling tools, you must pay attention to the influence of water pressure and wind pressure.
