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Lightweight abrasion-resistant automobile gear and preparation method thereof

An automotive gear and lightweight technology, applied in the direction of belts/chains/gears, mechanical equipment, components with teeth, etc., can solve the problems of reducing the reliability of gears, shortening the service life of gears, and high production costs, and achieve excellent mechanics performance and usability, enhanced thermal conductivity, and overall lower mass effect

Inactive Publication Date: 2016-04-20
NINGBO QUNXING POWDER METALLURGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing automotive gears are severely worn, the transmission response is relatively slow, and the noise of the gears during transmission is relatively large, which shortens the service life of the gears and greatly reduces the reliability of the gears. At the same time, the production cost is relatively high, and the weight of the gears is relatively high. heavy, inconvenient to transport

Method used

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  • Lightweight abrasion-resistant automobile gear and preparation method thereof

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Comparison scheme
Effect test

Embodiment 1

[0030] The automobile gear in this embodiment includes a core body and an outer layer arranged on the surface of the core body. The core body is made of porous alloy steel ceramic material, and the porous alloy steel ceramic material is made of alloy steel with a mass ratio of 100:50.1:0.6:9. powder, ceramic powder, porogen, and resin binder. The porosity of porous alloy steel ceramics is 60.4%, and the pore diameter is 22.0 μm. The outer layer is made of alloy steel ceramic materials. The alloy steel ceramic material is composed of a mass ratio of 100:50.1:7 alloy steel powder, ceramic powder, resin binder.

[0031] The automobile gear of the present embodiment is obtained by the following method:

[0032] Mix the alloy steel powder, ceramic powder, porogen, and resin binder with a mass ratio of 100:50.1:0.6:9, and press it into a core body under a pressure of 1000Mpa; the mass ratio is 100:50.1:7 Alloy steel powder, ceramic powder, and resin binder are mixed evenly, coated ...

Embodiment 2

[0036] The automobile gear in this embodiment includes a core body and an outer layer arranged on the surface of the core body. The core body is made of a porous alloy steel ceramic material, and the porous alloy steel ceramic material is made of alloy steel with a mass ratio of 100:80:0.8:10. powder, ceramic powder, porogen, and resin binder, the porosity of porous alloy steel ceramics is 65.0%, the pore diameter is 18.2 μm, the outer layer is made of alloy steel ceramic materials, and the alloy steel ceramic materials are composed of a mass ratio of 100:85:8 alloy steel powder, ceramic powder, resin binder.

[0037] The automobile gear of the present embodiment is obtained by the following method:

[0038] Mix the alloy steel powder, ceramic powder, porogen, and resin binder with a mass ratio of 100:80:0.8:10, and press them into a core body under a pressure of 1080Mpa; the mass ratio is 100:85:8 Mix the alloy steel powder, ceramic powder, and resin binder, coat the mixed a...

Embodiment 3

[0042] The automobile gear in this embodiment includes a core body and an outer layer arranged on the surface of the core body. The core body is made of porous alloy steel ceramic material, and the porous alloy steel ceramic material is made of alloy steel with a mass ratio of 100:110:1.0:11. powder, ceramic powder, porogen, and resin binder, the porosity of porous alloy steel ceramics is 70.8%, the pore diameter is 12.3 μm, the outer layer is made of alloy steel ceramic materials, and the alloy steel ceramic materials are composed of a mass ratio of 100:100:9 alloy steel powder, ceramic powder, resin binder.

[0043] The automobile gear of the present embodiment is obtained by the following method:

[0044] Mix the alloy steel powder, ceramic powder, porogen, and resin binder with a mass ratio of 100:110:1.0:11, and press it into a core body under a pressure of 1150Mpa; the mass ratio is 100:100:9 Mix the alloy steel powder, ceramic powder and resin binder, coat the mixed al...

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Abstract

The invention relates to a lightweight abrasion-resistant automobile gear and belongs to the technical field of processing of automobile gears. The automobile gear comprises a core body and an outer layer arranged on the surface of the core body, wherein the core body is made of a porous alloy steel ceramic material. The porous alloy steel ceramic material comprises alloy steel powder, ceramic powder, a pore-foaming agent and a resin adhesive according to a mass ratio of 100 to (50.1-145.2) to (0.6-1.2) to (9-12). The outer layer is made of an alloy steel ceramic material; the alloy steel ceramic material comprises the alloy steel powder, the ceramic powder and the resin adhesive according to a mass ratio of 100 to (50.1-145.2) to (7-10). The lightweight abrasion-resistant automobile gear is excellent in mechanical property and high in sound-absorbing and vibration-damping effects, and can work for a long time under the harsh conditions.

Description

technical field [0001] The invention belongs to the technical field of automobile gear processing, and relates to a lightweight wear-resistant automobile gear and a preparation method thereof. Background technique [0002] A gear is a mechanical element with teeth on the rim that can continuously mesh to transmit motion and power. The gear is an important part of the car. The life of automotive gears is mainly evaluated by two indicators, one is the contact fatigue strength of automotive gears, the other is the bending fatigue strength of automotive gears, and the contact fatigue strength and bending fatigue strength are mainly determined by the properties of automotive gear materials. There are many steel grades for gears of medium and heavy trucks in my country. Existing automobile gears wear more seriously, the transmission response is relatively slow, and the noise of the gears during transmission is relatively large, which shortens the service life of the gears and gre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F1/00B22F5/08B22F3/14C22C38/02C22C38/18C22C38/08C22C38/12C22C38/04F16H55/17
CPCF16H55/17C22C38/002C22C38/005C22C38/02C22C38/04C22C38/08C22C38/12C22C38/18B22F3/14B22F5/08B22F2003/145B22F2998/10B22F1/10B22F3/02
Inventor 潘成群
Owner NINGBO QUNXING POWDER METALLURGY
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