Injection molding permanent magnet composite material containing polyphenylene sulfide and preparation method thereof
A composite material and polyphenylene sulfide technology, which is applied in the field of injection molding permanent magnet composite materials and their preparation, can solve the problems of the influence of the magnetic properties of the composite material, the poor fluidity of the composite melt, and the difficulty in resin mixing, and achieve excellent magnetic properties and anti-resistance. Corrosion performance, excellent low temperature impact toughness, the effect of alleviating the decrease of coercivity
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Example Embodiment
[0043] Example 1
[0044] The raw materials of this embodiment and the mass percentages of each raw material are as follows:
[0045]
[0046] The mixed magnetic powder is composed of neodymium iron boron permanent magnet powder MQP-B, isotropic samarium iron nitrogen permanent magnet powder Sm 2 Fe 17 N 2.9 And strontium ferrite permanent magnet powder SrO·6Fe 2 O 3 The composition and the mass percentage of each permanent magnet powder are as follows:
[0047] MQP-B (particle size 54~150 microns) 96%
[0048] Sm 2 Fe 17 N 2.9 (Particle size 5-20 microns) 3%
[0049] SrO·6Fe 2 O 3 (Particle size 5-20 microns) 1%;
[0050] The process steps are as follows:
[0051] (1) Preparation of multi-element composite magnetic powder
[0052] Measure MQP-B permanent magnet powder and Sm according to the stated mass percentage 2 Fe 17 N 2.9 Permanent magnet powder and SrO·6Fe 2 O 3 Mixed magnetic powder composed of permanent magnetic powder and coupling agent γ-aminopropyltriethoxysilane (trade brand ...
Example Embodiment
[0059] Example 2
[0060] The raw materials of this embodiment and the mass percentages of each raw material are as follows:
[0061] Mixed magnetic powder 82.0%
[0062] Polyphenylene sulfide resin powder 17.8%
[0063] γ-(2,3 glycidoxy) propyl trimethoxysilane (trade name KH560) 0.2%;
[0064] The mixed magnetic powder is made of neodymium iron boron permanent magnet powder Nd 10.5 (FeCoZr) 83.5 B 6 , Isotropic samarium iron nitrogen permanent magnet powder Sm 2 Fe 17 N 2.9 And strontium ferrite permanent magnet powder SrO·6Fe 2 O 3 The composition and the mass percentage of each permanent magnet powder are as follows:
[0065] Nd 10.5 (FeCoZr) 83.5 B 6 (Particle size 54~150 microns) 60%
[0066] Sm 2 Fe 17 N 2.9 (Particle size 5-20 microns) 35%
[0067] SrO·6Fe 2 O 3 (Particle size 5-20 microns) 5%;
[0068] The process steps are as follows:
[0069] (1) Preparation of multi-element composite magnetic powder
[0070] Measure Nd according to the stated mass percentage 10.5 (FeCoZr) 83.5 B 6...
Example Embodiment
[0077] Example 3
[0078] The raw materials of this embodiment and the mass percentages of each raw material are as follows:
[0079]
[0080] The mixed magnetic powder is composed of neodymium iron boron permanent magnet powder MQP-A, isotropic samarium iron nitrogen permanent magnet powder Sm 2 Fe 17 N 2.9 And strontium ferrite permanent magnet powder SrO·6Fe 2 O 3 The composition and the mass percentage of each permanent magnet powder are as follows:
[0081] MQP-B (particle size 54~150 microns) 50%
[0082] Sm 2 Fe 17 N 2.9 (Particle size 5-20 microns) 5%
[0083] SrO·6Fe 2 O 3 (Particle size 5-20 microns) 45%;
[0084] The process steps are as follows:
[0085] (1) Preparation of multi-element composite magnetic powder
[0086] Measure MQP-B permanent magnet powder and Sm according to the stated mass percentage 2 Fe 17 N 2.9 Permanent magnet powder and SrO·6Fe 2 O 3 Mixed magnetic powder composed of permanent magnet powder and coupling agent γ-(2,3 glycidoxy) propyl trimethoxy silane ...
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