Highly coercive permanent magnets based on rare-earth alloy powder and polymer binder with B_r≥0.5 T, H_cB≥250 kA/m

摘要

Om producing CMHM, liquid and solid binder may be introduced. The optimal properties are obtained at a binder polymerization temperature no higher than 120 deg.C: B_r≥0.5 T, H_cB≥250 kA/m. The introduction of solid binder is techologically more convenient, since it excludes drying and the use of toxic acetone and simplifies the production technology. The operating temperature of CMHM is determined by the temperature strength of the binder (limited to Temperatures of 50-60 deg.C), and working life is determined by the resistance of the binder to the operating Conditions.