The continuous belt machine in the high slope upward transportation prone to summarize the problems, carefully analyze the reasons and take the corresponding solution measures, is to ensure that the tunnel constructio...The continuous belt machine in the high slope upward transportation prone to summarize the problems, carefully analyze the reasons and take the corresponding solution measures, is to ensure that the tunnel construction can achieve high efficiency and high efficiency of the necessary conditions. As TBM is more and more applied to tunnel construction, the efficiency of tunnel construction have been greatly improved, and the supporting slag discharge mode has also become a hot topic in the engineering field. At present, the belt continuous conveying system has become an important equipment of tunnel slag transport system, and it has the characteristics of long transmission distance, continuous operation, convenient maintenance and high efficiency.展开更多
A new method of the design and machining the casting moulds of helical intake ports of diesel engines is presented based on CAD / CAM technique. The problems about the smooth continuity between patches, the cutter int...A new method of the design and machining the casting moulds of helical intake ports of diesel engines is presented based on CAD / CAM technique. The problems about the smooth continuity between patches, the cutter interference and the determination of the mould split curve are discussed in details.The CAGD system of the intake port has been developed. and the casting mould is machined sucessfully on NC machine.展开更多
文摘The continuous belt machine in the high slope upward transportation prone to summarize the problems, carefully analyze the reasons and take the corresponding solution measures, is to ensure that the tunnel construction can achieve high efficiency and high efficiency of the necessary conditions. As TBM is more and more applied to tunnel construction, the efficiency of tunnel construction have been greatly improved, and the supporting slag discharge mode has also become a hot topic in the engineering field. At present, the belt continuous conveying system has become an important equipment of tunnel slag transport system, and it has the characteristics of long transmission distance, continuous operation, convenient maintenance and high efficiency.
文摘A new method of the design and machining the casting moulds of helical intake ports of diesel engines is presented based on CAD / CAM technique. The problems about the smooth continuity between patches, the cutter interference and the determination of the mould split curve are discussed in details.The CAGD system of the intake port has been developed. and the casting mould is machined sucessfully on NC machine.
