According to the actual situation of Yanzishan tunnel project, the specific application of rock drilling rig in its construction is analyzed in depth, including construction preparation and construction technology, and the advantages of rock drilling rig application are discussed, such as

continuous development of China's scientific and technological level, there has been a qualitative leap in underground mining technology. At present, in order to strengthen the mining efficiency of underground metal mines in China, it is necessary to strengthen research on underground mining

Brand : EPIROC
Part No. : 3115363501
Description : Piston
Use in : Cop 1838+ , Cop 1838hd , Cop 1838hd+ , Cop 1838he+

The shank adapter of hydraulic rock drill broke after drilling 4000 m. Failure analysis is conducted using fracture morphology observation, chemical composition, mechanical properties and microstructure analysis. The results show that the material of shank adapter has well wear resistance and

This paper mainly analyzes the processing technology of the hot embedded tooth drill body, that is, the machining process and the heat treatment process. By selecting the reasonable materials and processing through a series of steps, and through a large number of comparative experiments, it is

A large number and long mile age of railway tunnels are being constructed in China. Thedrilling and blasting technology has be come the most commonly used method in the tunnel construction process due to its unique advantages. The blasting is not only the first stage of tunnel excavation,but also

The 4Cr5Mo2V shank adapter for a hydraulic rock drill drill machine cracked after 10 days of use. Through the observation of fracture morphology, chemical composition analysis, mechanical properties and metallographic structure test, the causes of cracking of 4Cr5Mo2V shank bushing were

Brand : EPIROC
Part No. : 3128309436
Description : Shaft
Use in : Boltec 235 , Boltec 235h , Boltec Lc , Boltec Md

The construction of an extra-long and large cross-section highway tunnel is the key for entire construction period in expressway. To ensure construction quality and improve construction progress, the principles for supporting large-scale mechanized equipment, such as matching with geological

The 20CrNi3 shank adapter for hydraulic rock drill was fractured after drilling for 300 meters．The fracture causes of 20CrNi3 shank adapter were analyzed through chemical composition analysis，fracture morphology and microstructure observation，mechanical properties testing． The results showed