Wear-resistant powder metallurgy magnet ring for magnetic water pump of new energy vehicle and manufacturing method of wear-resistant powder metallurgy magnet ring
A new energy vehicle, powder metallurgy technology, used in the manufacture of inductors/transformers/magnets, magnetic materials, magnetic objects, etc., can solve the problems of small hardness, wear resistance, poor acid and alkali resistance, and corrosion resistance, and reduce segregation. , grain refinement, wear resistance and excellent insulation effect
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[0015] A powder metallurgy magnetic ring for wear-resistant new energy automobile magnetic water pump, made of the following raw materials in parts by weight: chromium 19, carbon 0.027, manganese 3, phosphorus 0.3, copper 11, nano-graphite powder 1.5, antimony trioxide 0.7, Aluminum oxide 0.4, calcium carbonate 1, carbon fiber 2, aminosilane 2.5, castor oil 4, water glass 7, manganese zinc ferrite 1.4, iron 53, the molar formula ratio of the manganese zinc ferrite is iron oxide: oxide Manganese: Zinc Oxide = 51.5:24.5:24.
[0016] A method for manufacturing a powder metallurgy magnetic ring for a wear-resistant new energy automobile magnetic water pump includes the following steps:
[0017] (1) After ultrasonically dispersing the nano-graphite powder and castor oil evenly, add carbon fiber and aminosilane and heat to 50-70°C, fully grind for 5-8 hours, and spray dry;
[0018] (2) Put the copper powder into the crucible resistance furnace and heat it up rapidly until it is com...
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