What are the characteristics of the material of the water seal of the hydraulic rock drill?
2022-12-22
At present, the commonly used water sealing material is polyester polyurethane. This material is characterized by good physical and mechanical properties, but its hydrolytic stability is very poor. The reason is that water has a strong expansion and hydrolysis effect on this polyurethane. The so-called swelling effect refers to the formation of hydrogen bonds between the water and the polar groups in the polyurethane elastomer,
High-quality downhole drilling series products, 43mm,45mm drill bits;
2022-12-22
High-quality downhole drilling series products, 43mm,45mm drill bits; H35,3700mm,4305mm boring drill rod; 76mm,89mm,102mm reaming drill bit; T38 thread drill tail.
What are the performance requirements of hydraulic rock drill water seal?
2022-12-12
The working condition of the rock drill is more complicated. The drill tail has both axial movement under the impact of the piston and rotation under the action of the motor. At the same time, due to the long drill rod, the drill has a certain degree of swing.
2022-12-12
High quality finished steel The overall carburizing process product performs very well. Taper drill rods
What is the drill rod of the tunneling drilling jumbo?
2022-12-06
Hydraulic excavation drilling jumbo is used in underground mine roadway excavation, mining and anchoring rock drilling operations, highway, railway tunnel excavation, hydropower and water conservancy construction, slope support rock drilling operations. Hydraulic boring drill rod is one of the main supporting drilling tools used in hydraulic boring drill, which is widely used.
2022-12-06
Connection thread: ST58 Lianhuashan drilling tools high quality drilling tools
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