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A method of manufacturing a gearbox for an automobile

一种制造方法、变速箱的技术，应用在带有齿的元件、含杀生剂的油漆、防污/水下涂料等方向，能够解决难以满足等问题，达到提高耐蚀性能、成分简单、提高耐候抗污性能的效果

Active Publication Date: 2018-09-21
GAC HONDA AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To further expand the application of aluminum alloy materials in automobile structures and powertrain systems, the existing preparation methods and manufacturing processes of aluminum alloy castings have been difficult to meet this requirement

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A gearbox for automobiles, the gearbox includes a lower box and an upper box, the lower box and the upper box are connected to form a gearbox cavity, and the inner surface of the upper box is coated with an alumina-based ceramic material layer, The inner surface of the lower box is coated with a zirconia-based ceramic material layer, and the outer surfaces of the upper box and the lower box are coated with organic silicon paint,

[0031] The upper box and the lower box are made of aluminum alloy, and the chemical composition of the aluminum alloy is (weight percentage): Sn: 13%, : Cu6%, Mg: 2%, Si: 1%, Ti: 0.8%, Mn 0.6%, Fe: 0.4%, Ni: 0.2%, Co: 0.08%, Cr: 0.06%, Ag: 0.05%, Y: 0.06%, Mo: 0.08-%, the balance is Al and unavoidable impurities;

[0032] The preparation method of the upper box and the lower box includes the following steps: according to the above-mentioned chemical composition of the aluminum alloy, the aluminum ingot is first added to the melting furnace, an...

Embodiment 2

[0038] A gearbox for automobiles, the gearbox includes a lower box and an upper box, the lower box and the upper box are connected to form a gearbox cavity, and the inner surface of the upper box is coated with an alumina-based ceramic material layer, The inner surface of the lower box is coated with a zirconia-based ceramic material layer, and the outer surfaces of the upper box and the lower box are coated with organic silicon paint,

[0039] The upper box and the lower box are made of aluminum alloy, and the chemical composition of the aluminum alloy is (weight percent): Sn: 14%, : Cu7%, Mg: 3%, Si: 2%, Ti: 0.9%, Mn 0.7%, Fe: 0.5%, Ni: 0.3%, Co: 0.09%, Cr: 0.07%, Ag: 0.06%, Y: 0.07%, Mo: 0.09%, and the balance is Al and unavoidable impurities;

[0040] The preparation method of the upper box and the lower box includes the following steps: according to the above-mentioned chemical composition of the aluminum alloy, the aluminum ingot is first added to the melting furnace, an...

Embodiment 3

[0046] A gearbox for automobiles, the gearbox includes a lower box and an upper box, the lower box and the upper box are connected to form a gearbox cavity, and the inner surface of the upper box is coated with an alumina-based ceramic material layer, The inner surface of the lower box is coated with a zirconia-based ceramic material layer, and the outer surfaces of the upper box and the lower box are coated with organic silicon paint,

[0047] The upper box and the lower box are made of aluminum alloy, and the chemical composition of the aluminum alloy is (weight percent): Sn: 13.5%, Cu6.5%, Mg: 2.5%, Si: 1.5%, Ti: 0.85%, Mn 0.65 ﹪, Fe: 0.45%, Ni: 0.25%, Co: 0.085%, Cr: 0.065%, Ag: 0.055%, Y: 0.065%, Mo: 0.085%, and the balance is Al and unavoidable impurities;

[0048]The preparation method of the upper box and the lower box includes the following steps: according to the above-mentioned chemical composition of the aluminum alloy, the aluminum ingot is first added to the melt...

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PUM

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Abstract

A gearbox for an automobile comprises a lower box body and an upper box body, wherein the lower box body and the upper box body are connected to form a gearbox cavity, the inner surface of the upper box body is coated with an aluminum oxide series ceramic material layer, the inner surface of the lower box body is coated with a zirconium oxide series ceramic material layer, and the outer surface of the upper box body and the outer surface of the lower box body are coated with organic silicon coatings. Due to the fact that the inner surface of the lower box body makes contact with gearbox oil more easily than the inner surface of the upper box body, differentiated coating is conducted on the inner surface of the lower box body and the inner surface of the upper box body, corrosion resistance is improved, and the organic coatings are formed on the outer surfaces of the box bodies to effectively improve weather resistance and staining resistance.

Description

technical field [0001] The invention relates to a gearbox for automobiles, belonging to the technical field of automobile accessories. Background technique [0002] In the fierce competition in the world automobile market, all countries are developing in the direction of high quality, high reliability, light weight, energy saving and low cost. In terms of materials, it is lightweight, replacing some steel (iron) parts with aluminum alloys, in order to meet the requirements of high-quality, low-cost development of automobiles; in terms of technology, it is scientific, using advanced technology to replace traditional technology to achieve The purpose of improving blank precision, reducing machining allowance, reducing raw material consumption, and reducing cost. To further expand the application of aluminum alloy materials in automobile structures and powertrain systems, the existing preparation methods and manufacturing processes of aluminum alloy castings have been difficul...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/00C22C1/03C22C1/06C22F1/04C23C22/34F16H55/17C04B35/48C04B35/10C04B35/622C09D183/04C09D5/16C09D7/61C09D7/63
CPCC04B35/10C04B35/48C04B35/62222C04B2235/3232C04B2235/3418C04B2235/3843C04B2235/3873C04B2235/3886C04B2235/6562C04B2235/6565C04B2235/6567C08L2201/08C09D5/1675C09D5/1687C09D5/18C09D183/04C22C1/026C22C1/03C22C1/06C22C21/003C22F1/002C22F1/04C23C22/34F16H55/17F16H57/032C08L1/28C08K13/02C08K3/34C08K2003/3045C08K2003/287C08K2003/328
Inventor 田庭
Owner GAC HONDA AUTOMOBILE CO LTD
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