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

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

Brand : EPIROC
Part No. : 3115219681
Description : Test Valve. Compl
Use in : Cop 1132 , Cop 1435 , Cop 1532 , Cop 1638 , Cop 1638hd , Cop 1838 , Cop 1838+ , Cop 1838cr , Cop 1838hd , Cop 1838hd+ , Cop 1838mux , Cop 1840 , Cop 1850 , Cop 1850cr , Cop 2160 , Cop 2238 , Cop 2238hd , Cop 2550 ...

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

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

In view of the characteristics of two-way eight-lane and single-hole four-lane large-section tunnel construction of expressway, the application of large-scale mechanized full-process operation technology is studied. Through the use of advanced geological prediction technology, the condition of the

Brand : MONTABERT
Part No. : 86634003
Description : Diaphragm Kit
Use in : Hc 109 , Hc 120 , Hc 150

In order to further improve the level of large-scale mechanized construction of plateau railway tunnels, reduce construction risks, and ensure the construction progress, combined with the characteristics and construction requirements of the surrounding rock of plateau tunnels, the application

With the continuous development of China's social economy, the land transportation system has become increasingly perfect in recent years, and the number of new highway projects has increased. Many highway construction needs to cross mountains, among which tunnel construction has become a key and