内置电磁线圈注塑模具中取向磁场三维有限元模拟  

Simulation of Magnetic Field in Injection Mold Integrated With Electromagnetic Coils by 3D Finite Element

作　　者：李培军[1] 赵树高[1] 

机构地区：[1]青岛科技大学橡塑材料与工程教育部重点实验室,山东青岛266042

出　　处：《现代塑料加工应用》2011年第2期52-55,共4页Modern Plastics Processing and Applications

基　　金：国家自然科学基金资助项目(50673047);山东省重大科技专项资助项目(2006GG1103085)

摘　　要：使用三维有限元软件Opera 3d对在内置电磁线圈的注塑模具中的磁场强度(H)及分布进行了模拟。结果表明,在电流强度(I)低于5.00 A时,模腔中的H随电磁线圈中I值的增加而线性增加,I高于5.00A后,由于模具材料被饱和磁化,H的模拟值偏离实测值。通过模拟还发现,模腔中H及均匀性随导磁模具钢与非导磁模具钢磁导率(μ_r)比值的增大提高。The distribution of magnetic field strength （H） in the cavity of an injec- tion mold integrated with electromagnetic coils was simulated with three-dimensional finite element software Opera 3d. The results show that, when the current density （I） in the coil is less than 5.00 A, the H in the cavity increases linearly with the increase of I. When I is higher than 5.00 A,the simulated H value in the cavity deviates from the measured one, which is caused by the saturated magnetization of materials of the mould. It is also found that the H and homogeneity of the H in the cavity of the mold is improved when the ratio of the relative permeability（μ） of conductor and isolator increases.

关 键 词：模具 塑料黏接磁体 有限元模拟 磁场强度 磁场分布 

分 类 号：TM273[一般工业技术—材料科学与工程]