塑料粘结磁体磁场注射成型机的设计与制造

Design and Manufacture of Magnetic Field Injection Moulding Machine for Plastic Bonded Magnets

注射成型塑料粘结磁体与模压成型粘结磁体相比有更多的优点。磁场注射成型机是制造塑料粘结磁体的关键设备。我们设计和制造的塑料粘结磁体磁场注射成型机，由于采用耐热、耐磨损、耐腐蚀突变式螺杆，带加热器自锁式喷嘴，耐热、耐磨损加热料筒及独创的水冷却单片组合式高磁场线圈等，不仅性能优良、使用和维修方便，而且制造成本低，约为日本机价格的１／２０。用同种混炼料分别在自制机和日本机上注射成型磁体，其磁性能基本相同。

Plastic bonded magnets by injection moulding have many advantages over that by press moulding.Magnetic field injection moulding machine is a critical installation in producing plastic bonded magnets.By using heat ,wear ,and corrision resisting discontinuous screw,self lock nozzle with heater,heating barrel of heat and wear resisting as well as originative high magnetic field water cooled coil,et al,we have designed and manufactared a magnetic field injection molding machine for plastic bonded magnets,which have not only excellent performance,but also lower cost of about 1/20 of that of Japanese machine,and can mould plastic bonded magnets of about the same properties as that of magnets by Japanese injection moulding machine.