首页>
外国专利>
METHOD AND APPARATUS FOR APPLYING MULTIPOLAR MAGNETIC FIELD TO PLURALITY OF CAVITY DEMARCATED TO MAGNETIC FIELD INJECTION MOLDING DIE
METHOD AND APPARATUS FOR APPLYING MULTIPOLAR MAGNETIC FIELD TO PLURALITY OF CAVITY DEMARCATED TO MAGNETIC FIELD INJECTION MOLDING DIE
展开▼
机译:将多极磁场应用于划分为磁场注射模头的型腔的多个的方法和装置
展开▼
页面导航
摘要
著录项
相似文献
摘要
PURPOSE:To decrease the number of exciting coils, and to take out a large number of resin magnets brought into a multipolar anisotropic state by inducing a magnetic field to a common magnetizing yoke connecting adjacent cavities, distributing the magnetic field into each cavity and feeding back the magnetic field to a closed loop. CONSTITUTION:A plurality of cavities 22 are demarcated in a movable side die 18 in predetermined arrangement, and the adjacent cavities 22, 22 are connected in common by each magnetizing yoke 24. A magnetic field excited by an exciting coil 27 is induced in a path of a yoke 26 for inducing a first magnetic field, a magnetizing yoke 24, a yoke 28 for inducing a second magnetic field, a movable die 30a and a tie bar 30b to form a closed loop of the magnetic field. The number of the exciting coils requiring at least n/2 (n represents the number of magnetizing yokes) per each cavity in conventional devices can be decreased largely.
展开▼