Manufacturing method of automobile gearbox

A manufacturing method and gearbox technology, applied to components with teeth, biocide-containing paint, portable lifting devices, etc., can solve problems that are difficult to meet, achieve improved corrosion resistance, simple ingredients, and improved weather resistance and anti-fouling performance effect

Active Publication Date: 2017-07-18
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, the chemical composition of the aluminum alloy is (weight percentage): Sn: 13%,: Cu 6%, 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, and t...

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 percentage): Sn: 14%, Cu 7%, 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,...

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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Abstract

The invention provides a manufacturing method of an automobile gearbox. The gearbox comprises an upper box body and a lower box body. The upper box body and the lower box body are connected to form a gearbox cavity. The inner surface of the upper box body is coated with an aluminum-oxide-system ceramic material layer. The inner surface of the lower box body is coated with a zirconia-system ceramic material layer. The outer surfaces of the upper box body and the lower box body are coated with organic silicon coatings. Because the inner surface of the lower box body can more easily make contact with gearbox oil than the inner surface of the upper box body, the inner surface of the lower box body and the inner surface of the upper box body are coated with the different coatings; and in this way, the corrosion resistance is improved. The organic coatings are formed on the outer surfaces of the box bodies, so that the weather-proof performance and the stain-resistant performance are effectively improved.

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 Applications(China)
IPC IPC(8): C22C21/00C22C1/03C22C1/06C22F1/04C23C22/34F16H55/17C04B35/48C04B35/10C04B35/622C09D183/04C09D5/16C09D7/12
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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