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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

Active Publication Date: 2014-10-08
ANHUI JISITE INTELLIGENT EQUIP CO LTD
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  • Abstract
  • Description
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AI Technical Summary

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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Embodiment Construction

[0015] 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

[0016] 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 metallurgical hub bearing unit. The high-strength powder metallurgical hub bearing unit is manufactured by the following steps: in part by weight, sequentially adding 20-25 parts of carbon fiber, 4-6 parts of antioxidant, 12-15 parts of glass fiber, 3-8 parts of zinc, 5-7 parts of magnesium and 8-15 parts of cobalt into a stirrer, stirring for 40-50 minutes to obtain an intermediate mixture, grinding the intermediate mixture into granules, and processing 20-30 parts of intermediate mixture, 10-20 parts of hard phase, 6-9 parts of bonding phase and 50-55 parts of alloy phase. The high-strength powder metallurgical hub bearing unit is simple in manufacturing process and has good properties of unlikeliness in deformation and good thermal conductivity; the cost of the alloy material of the current automobile hub bearing unit is effectively reduced, so that the high-strength powder metallurgical hub bearing unit is very high in economic benefit.

Description

[0001] technical field [0002] The invention relates to a high-strength powder metallurgy hub bearing unit. [0003] Background technique [0004] 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. [0005] Contents of the invention [0006] In view of the above problems, the object of the present invention is to pro...

Claims

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Application Information

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IPC IPC(8): B22F5/10B22F1/00
Inventor 章功国王泾文段宗银李纯金陈超王淑妍张少伍王晓芬谢勇
Owner ANHUI JISITE INTELLIGENT EQUIP CO LTD
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