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A kind of high-hardness wear-resistant cam and its preparation method

A high-hardness, cam technology, applied in the field of wear-resistant cams, can solve the problems of easy wear and low life, and achieve the effect of enhancing tensile strength and ductility, high hardness, and high-strength hardness

Active Publication Date: 2017-10-10
ANQING XINYI AUTO PARTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The friction between the cam and the follower drives the follower to rotate. After a period of use, it is easy to wear and has a low service life. Now a high-hardness wear-resistant cam is needed.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A high-hardness wear-resistant cam proposed by the present invention, its components include by weight percentage: Cu: 4.50%, Si: 1.60%, Mn: 1.80%, Fe: 0.30%, Zn: 0.05%, Ti: 0.50%, Zr: 0.10%, Mg: 0.30%, Ni: 0.15%, Cr: 0.40%, Ce: 0.02%, B: 0.10%, and the balance is Al.

[0027] The preparation method of the above-mentioned high-hardness wear-resistant cam also proposed by the present invention includes the following steps: smelting and casting, hot extrusion, finishing, solution treatment, and aging treatment; in the hot extrusion step, the hot extrusion temperature is 400°C; In the solution treatment step, heat up to 380°C, hold for 45 minutes, then heat up to 450°C, hold for 20 minutes, then heat up to 530°C, hold for 4 hours, and water-cool; in the aging treatment step, natural aging is 180 minutes, followed by artificial aging for 180 minutes, artificial aging The temperature is 250°C.

Embodiment 2

[0029] A high-hardness wear-resistant cam proposed by the present invention, its components include by weight percentage: Cu: 5.00%, Si: 1.20%, Mn: 2.00%, Fe: 0.20%, Zn: 0.15%, Ti: 0.40%, Zr: 0.20%, Mg: 0.20%, Ni: 0.25%, Cr: 0.30%, Ce: 0.05%, B: 0.05%, and the balance is Al.

[0030] The preparation method of the above-mentioned high-hardness wear-resistant cam also proposed by the present invention includes the following steps: melting and casting, hot extrusion, finishing, solution treatment, and aging treatment; in the hot extrusion step, the hot extrusion temperature is 420°C; In the solid solution treatment step, heat up to 350°C, hold for 60 minutes, then heat up to 420°C, hold for 25 minutes, then heat up to 500°C, hold for 6 hours, and water-cool; in the aging treatment step, natural aging is 150 minutes, followed by artificial aging for 360 minutes, artificial aging The temperature is 220°C.

Embodiment 3

[0032] A high-hardness wear-resistant cam proposed by the present invention, its components include by weight percentage: its components by weight percentage include: Cu: 4.60%, Si: 1.50%, Mn: 1.85%, Fe: 0.25%, Zn: 0.08%, Ti: 0.46%, Zr: 0.13%, Mg: 0.28%, Ni: 0.18%, Cr: 0.38%, Ce: 0.03%, B: 0.08%, and the balance is Al.

[0033] The preparation method of the above-mentioned high-hardness wear-resistant cam also proposed by the present invention includes the following steps: smelting and casting, hot extrusion, finishing, solution treatment, and aging treatment; in the hot extrusion step, the hot extrusion temperature is 405°C; In the solid solution treatment step, heat up to 370°C, hold for 50 minutes, then heat up to 440°C, hold for 22 minutes, then heat up to 520°C, hold for 4.5 hours, and cool in water; in the aging treatment step, natural aging is 170 minutes, followed by artificial aging for 240 minutes, artificial The aging temperature was 240°C.

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Abstract

The invention discloses a high-hardness and wear-resisting cam. The high-hardness and wear-resisting cam comprises, by weight percent, 4.50-5.00% of Cu, 1.20-1.60% of Si, 1.80-2.00% of Mn, 0.50-0.70% of Mg, 0.05-0.15% of Zn and the balance Al. The invention further discloses a manufacturing method of the high-hardness and wear-resisting cam. The manufacturing method includes the following steps of melting casting, hot extruding, finishing, solution treating and aging treating. According to the high-hardness and wear-resisting cam and the manufacturing of the high-hardness and wear-resisting cam, the obtained cam is high in hardness and strength, good in wear-resisting performance and long in service life.

Description

technical field [0001] The invention relates to the technical field of wear-resistant cams, in particular to a high-hardness wear-resistant cam and a preparation method thereof. Background technique [0002] The cam mechanism is a widely used precision mechanical component. It is generally a high-level mechanism composed of three components: a cam, a follower and a frame. The cam usually rotates continuously at a constant speed, and the follower is designed according to the requirements of use so that it can obtain a certain regular movement. The cam mechanism can realize complex motion requirements and is widely used in various automatic and semi-automatic mechanical devices. [0003] The cam acts as a mechanical rotating or sliding member which transmits motion to, or it receives forces from, a roller moving against its edge or a needle bar freely moving on the groove. The frictional force between the cam and the follower drives the follower to rotate. After a period of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/18C22C21/16C22C21/14B23P15/00
CPCB23P15/00C22C21/14C22C21/16C22C21/18
Inventor 余峰
Owner ANQING XINYI AUTO PARTS