Continuous Piece Casting In Vacuum Induction Technology And Its Computer Control System Design And Realization

Nanocrystalline composite rare earth permanent magnet high theoretical magnetic and is considered the most potential of the new permanent magnetism materials, especially in recent years, along with the rapid development of automobile industry of nanocrystalline composite rare earth permanent magnet put forward higher request. But after years of domestic research also not conquer production nanocrystalline composite rare earth permanent magnet of key equipment and technology - vacuum induction continuous casting technology piece.From the nanocrystalline composite of rare earth permanent magnet technology situation at home and abroad, the paper analyzes the two kinds of the most representative preparation technology - arc type fast quenching vacuum induction method and continuous casting technology advantages, slice the only attack vacuum induction continuous casting technology to stability slice mass production of high-performance fast nd-fe-b magnetic powder quenching.Through the analysis of rapid solidification theory, combined with the actual needs of large industrialized production, design and manufacture of a continuous casting technology vacuum inductive slice through its platform, 3 rooms, 3 packets and computer integrated induction of PLC control system is achieved very good in vacuum induction melt materials, insulation, spray and continuous casting, but after initial tests to find high dewatering alloy smelting must be continuous casting technology, technology is studied piece, just can make production running smoothly. The study through the foam ceramic filter technology and furnace atmosphere control system to solve the above problems.Because of this set of equipment to work long hours, therefore, design and manufacture for vacuum induction of online continuous casting system chips sampling device, this device does not affect the normal production in the circumstance of product sampling may at any time.This set of equipment is relatively complex, and control the development process, the computer control system of foreign advanced experience and theory, a set of continuous casting for vacuum induction piece of equipment, computer control system, PLC as the core, to cooperate with other auxiliary functions of each subsystem of equipment, the height of complete automation.Limited by domestic manufacturing high quality materials and the limit, vacuum inductive continuous casting technology slice, although has made a great progress, but long stable injection molded still has a large space, finally ascend a prospect and the problems to be solved are expounded.