High-strength powder metallurgical hub bearing unit
A kind of wheel hub bearing and powder metallurgy technology, applied in the field of high-strength powder metallurgy wheel hub bearing units, can solve problems such as affecting the service life of products, rough turning surfaces of parts, affecting glossiness, etc., and achieve long service life, strong thermal conductivity and glossiness. Good results
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[0015] In the following, the present invention will be further clarified in conjunction with specific examples. It should be understood that these examples are only used to illustrate the present invention
[0016] A kind of high-strength powder metallurgy wheel hub bearing unit, in parts by weight, 20-25 parts of carbon fiber, 4-6 parts of antioxidant, 12-15 parts of glass fiber, 3-8 parts of zinc agent, 5 parts of magnesium -7 parts, 8-15 parts of cobalt, sequentially added to the mixer for stirring, stirring time 40-50 minutes, made into an intermediate mixture, the intermediate mixture is crushed into granules; the above-mentioned 20-30 parts of the intermediate mixture, 10-20 parts Hard phase, 6-9 parts of binder phase, 50-55 parts of alloy phase, after mixing and stirring step, pressing step, sintering step, heat treatment step, turning processing step, surface treatment step, sintering in the sintering furnace 3.5 ~4.5h, sintering furnace temperature 940℃~1000℃, in the hea...
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