紧凑型双匝电磁轨道炮及多发填弹器的研制

该文介绍了由脉冲补偿电机供能的连发电磁轨道炮,该连发炮由自动填弹控制电源控制的步进电动机驱动“WJ蜗杆凸轮步进机构”,以高定位精度分度驱动转膛式连发机构,将弹丸连续触发,经过渡段进入双匝加强型轨道炮进一步加速后出腔,初速V=250m/s     

Design and Manufacture of Full-Size Testing Joints for EAST

The conductors of both the toroidal field （TF） and poloidal field （PF） coils of EAST are NiTi cable-in-conduit conductors （CICCs）. The sizes of this type of CICC are 20.3 mm×20.3 mm and 18.5 mm×18.5 mm respectively. A relevant R＆D program has been carried out for three years at the Research and Manufacture Center （RMC） of the Institute of Plasma Physics, Chinese Academy of Sciences （ASIPP） to acquire the manufacturing techniques and master the behavior of the testing joints. Based on the experience gained from the manufacture and test of a sub-cable joint, three kinds of joints were made. The final design was determined after carefully evaluating their simple mechanism, good cooling line, lower AC loss and resistance, compact size, and convenience for manufacture and on-site assembly. Two steps were developed to carry out the final joint. The first step was forming the terminals＇ super conductors. The second step was clamping the two terminals together to ensure their good contact with the copper conductor sole. The two terminals could be connected in different directions to get two kinds of conductor connections. A hydraulic instrument was developed to impact the terminals. It could impact the terminals in high accuracy in terms of their size and shape. The cross section of the terminal was tried in circular and an elliptic shape. Five full-size joints were made according to the design and then tested. When they were tested in bathing cold condition, their resistance was from 2 nΩ to 4 nΩ The latest joint was tested in real working conditions where the resistance varied from 2 nΩ to 12 nΩ, depending on the testing current ranging from 2 kA to 10 kA.     

A 600—m Jacketing Line of Cable—In—Conduit Conductor（CICC） and the First 600—m Dummy Cable

1. IntroductionCable in conduit conductors (CICCs) have beeninvestigated and widely used during the past 15years. It has been already and will be used in makingtoroidal field (TF) magnets and poloidal field (PF)magnets of superconducting tokamaks. lt is desiredto have a long lengtll in winding coils to reduce thenumber of superconducting joints and get a good su-per conducting property. There are two main waysfor jacketing such coIlductors. One is a cable over-lapped by a steel ro[)e, t,hi…