A high-strength powder metallurgy hub bearing unit
A wheel hub bearing and powder metallurgy technology, which is applied in the field of high-strength powder metallurgy hub bearing units, can solve the problems of affecting the service life of the product, the rough turning surface of parts, and affecting the gloss, and achieve long service life, strong thermal conductivity, and gloss. Good results
Active Publication Date: 2016-08-24
ANHUI JISITE INTELLIGENT EQUIP CO LTD
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Problems solved by technology
Since the pump shaft of the powder metallurgy centrifugal pump is formed in a granular form, the reduced formula will easily lead to rough turning surface of the parts during machining, which will affect the gloss, and if it is serious, it will easily break, which will affect the service life of the product.
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0011] Below in conjunction with specific embodiment, further illustrate the present invention, it should be understood that these embodiments are only for illustrating the present invention
[0012] A 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, and 5 parts of magnesium agent -7 parts, 8-15 parts of cobalt, added to the mixer in turn for stirring, the stirring time is 40-50 minutes, to make an intermediate mixture, and the intermediate mixture is pulverized into granular form; the above-mentioned 20-30 parts of intermediate mixture, 10-20 parts Hard phase, 6-9 parts of bonding phase, 50-55 parts of alloy phase, after mixing and stirring steps, pressing steps, sintering steps, heat treatment steps, turning steps, surface treatment steps, sintering in the sintering furnace for 3.5 ~4.5h, sintering furnace temperature 940℃~1000℃, in the heat ...
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Abstract
The invention discloses a high-strength powder metallurgy hub bearing unit, which comprises 20-25 parts of carbon fiber, 4-6 parts of antioxidant, 12-15 parts of glass fiber and 3-8 parts of zinc agent in parts by weight. , 5-7 parts of magnesium, 8-15 parts of cobalt, are added in the mixer successively and stirred, and the stirring time is 40-50 minutes to make an intermediate mixture, and the intermediate mixture is pulverized and processed into granules; the above-mentioned 20-30 parts of intermediate mixture, 10-20 parts of hard phase, 6-9 parts of adhesive phase, and 50-55 parts of alloy phase, the invention has simple process, not easy to deform, and excellent thermal conductivity, and effectively reduces the alloy material of the current automobile hub bearing unit The cost has strong economic benefits.
Description
technical field [0001] The invention relates to a high-strength powder metallurgy hub bearing unit. Background technique [0002] The existing powder metallurgy centrifugal pump shaft production process is mostly: mixing - forming - sintering - turning - heat treatment - vibration grinding - packaging and other processes. In this process, in order to reduce costs, many companies adopt methods such as streamlining formulas or reducing processes. Although streamlining formulas saves costs, it does not guarantee product performance and quality. Since the pump shaft of the powder metallurgy centrifugal pump is formed in a granular form, the reduced formula will easily lead to rough turning surfaces of the parts during machining, which will affect the gloss. In severe cases, it will easily break and affect the service life of the product. Contents of the invention [0003] In view of the above problems, the object of the present invention is to provide a high-strength powder m...
Claims
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IPC IPC(8): B22F5/10B22F1/00
Inventor 王兴松许飞云罗翔戴挺章功国
Owner ANHUI JISITE INTELLIGENT EQUIP CO LTD