single-arm rock drilling jumbo The Design of 1DM4 Single-arm Rock Drilling Jumbo Aiming at the problems of low technical level and poor reliability of domestic rock drilling jumbo, high cost and long supply cycle of purchasing foreign brands, Jinchuan Nickel Cobalt Research & Design Institute developed and designed 1DM4 single-arm rock drilling jumbo. Through CAN bus, the data
mountain tunnel Application of Rock Drilling Bogie in Mountain Tunnel Construction 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
underground mines Underground Mining Technology and its Trend Analysis 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
parts search 3115205300 Brand : EPIROCPart No. : 3115205300Description : Seal KitUse in : Cop 2160 , Cop 2550 , Cop 2550+ , Cop 2560 , Cop 2560+ , Cop Sc25
Hydraulic rock drill Fracture Failure Analysis of Shank Adapter for Hydraulic Rock Drill 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
Rock drilling tool The Processing Technology of Hot Embedded Tooth Drill Body for Rock Drilling Tool 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
High-speed railway Analysis of Mechanized Construction Technology for High-Speed Railway Tunnel In this paper, the mechanized construction technology for high-speed railway tunnel is comprehensively analyzed. Through the introduction of advanced mechanical equipment and technology, such as full computer three-arm drilling rig, long-span telescopic mobile treble, etc., multiple improvements
tunnel blasting Development status and trends of railway tunnel blasting technology in China 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
Hydraulic rock drill Analysis and Improvement Measures of Cracking Failure of Shank Bushing 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
parts search 3115329018 Brand : EPIROCPart No. : 3115329018Description : Seal RingUse in : Cop 1638hd+ , Cop 1838+ , Cop 1838hd , Cop 1838hd+ , Cop 1838he+ , Cop 1838mux , Cop 1838mux+ , Cop 1840+ , Cop 2238hd , Cop 2238hd+ , Cop 2550+ , Cop 2560+ , Cop Sc25
roads Large-scale Mechanized Construction Technology of Full-section Drilling and Blasting of Extra-long Highway Tunnel 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
Hydraulic rock drill Fracture Analysis of 20CrNi3 Shank Adapter for Hydraulic Rock Drill 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
