Magnet for micro-electronic water pump rotor and preparation method thereof
A technology of electronic water pump and manufacturing method, which is applied in the manufacture of stator/rotor body, permanent magnet manufacturing, inductor/transformer/magnet manufacturing, etc. It can solve the problems of acid and alkali resistance, solvent resistance and oxidation resistance, and insufficient magnetic properties, etc. problem, to achieve the effect of improving affinity, reducing volume and improving work efficiency
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[0041] Example 1:
[0042] A miniature electronic water pump rotor magnet, including a magnet body, the magnet body is an injection molded polyphenylene sulfide PPS-neodymium iron boron magnet; the magnet energy product of the magnet body is 6.3MGOe; the outer surface of the magnet body is treated by plasma surface modification A low-temperature plasma dielectric layer with a thickness of 80 nm is formed, and a parylene vacuum vapor deposition layer with a thickness of 200 μm is formed on the outside of the low-temperature plasma dielectric layer by a vacuum vapor deposition method.
[0043] Specific preparation method:
[0044] (1) Use commercially available injection molded polyphenylene sulfide PPS-NdFeB pellets (brand TRP-N760, energy product 6.3MGOe), use German Arburg production injection molding machine, injection molding at 310-330 ℃ injection temperature Injected polyphenylene sulfide PPS-neodymium iron boron water pump rotor magnet to form the magnet body;
[0045] (2) The ...
Example Embodiment
[0048] Example 2:
[0049] A miniature electronic water pump rotor magnet, including a magnet body, the magnet body is an injection molded polyphenylene sulfide PPS-neodymium iron boron magnet; the magnet energy product of the magnet body is 6.3MGOe; the outer surface of the magnet body is treated by plasma surface modification A low-temperature plasma dielectric layer with a thickness of 120 nm is formed, and a parylene vacuum vapor deposition layer with a thickness of 300 μm is formed on the outside of the low-temperature plasma dielectric layer by a vacuum vapor deposition method.
[0050] Specific preparation method:
[0051] (1) Use commercially available injection-molded PPS-NdFeB pellets (trademark TRP-N760, energy product 6.3MGOe), use German Arburg injection molding machine, and inject injection molding PPS- at an injection temperature of 310-330℃ Magnet for the rotor of neodymium iron boron water pump, forming the magnet body;
[0052] (2) On the outer surface of (1) the in...
Example Embodiment
[0055] Example 3:
[0056] A miniature electronic water pump rotor magnet, including a magnet body, the magnet body is an injection molded polyphenylene sulfide PPS-neodymium iron boron magnet; the magnet energy product of the magnet body is 6.3MGOe; the outer surface of the magnet body is treated by plasma surface modification A low-temperature plasma dielectric layer with a thickness of 60 nm is formed, and the magnet body is formed with a parylene vacuum vapor deposition layer with a thickness of 100 μm on the outside of the low-temperature plasma dielectric layer by a vacuum vapor deposition method.
[0057] Specific preparation method:
[0058] (1) Use commercially available injection-molded PPS-NdFeB pellets (trademark TRP-N760, energy product 6.3MGOe), use German Arburg injection molding machine, and inject injection molding PPS- at an injection temperature of 310-330℃ Magnets for NdFeB water pump rotors;
[0059] (2) On the outer surface of (1) the injection molded magnet bod...
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