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Aluminum alloy material and surface treatment method and application thereof

A technology of aluminum alloy surface and treatment method, applied in metal material coating technology, surface polishing machine tools, metal processing equipment and other directions, can solve the problem of difficult polishing of wear-resistant coatings, etc. Improve the effect of polishing

Active Publication Date: 2019-10-01
GUANGDONG MIDEA WHITE HOME APPLIANCE TECH INNOVATION CENT CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In order to solve the problem that the surface of the wear-resistant coating of high-hardness and high-roughness aluminum alloy materials is difficult to polish, the present invention proposes a new surface treatment method for aluminum alloys

Method used

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  • Aluminum alloy material and surface treatment method and application thereof
  • Aluminum alloy material and surface treatment method and application thereof
  • Aluminum alloy material and surface treatment method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] This embodiment provides a surface treatment method for aluminum alloy materials, such as figure 1 shown, including the following steps:

[0039] (1) Coarsening: by degreasing and cleaning the surface of the superhard aluminum alloy substrate 1, rough milling and grinding the surface requiring high gloss, and then performing surface roughening treatment by sandblasting to form a zigzag structure 2, the surface The roughness Ra reaches 3.2μm;

[0040] Table 1 Composition of superhard aluminum alloy matrix

[0041]

[0042] (2) Spraying: Put the aluminum alloy substrate after the surface sandblasting treatment into the thermal spraying room, first preheat the surface, in order to prevent the temperature from being too high, use compressed air to cool the sample surface during the entire spraying process;

[0043] The supersonic flame spraying method is used for spraying: through the high-speed and high-temperature flame generated in the combustion chamber by compress...

Embodiment 2

[0053] This embodiment provides a surface treatment method for an aluminum alloy material, comprising the following steps:

[0054] (1) Coarsening: by degreasing and cleaning the surface of the superhard aluminum alloy substrate, performing CNC rough milling and grinding treatment on the surface requiring high gloss, and then performing roughening treatment on the surface by sandblasting to form a zigzag structure with a rough surface The degree reaches 3.2μm;

[0055] Table 2 Composition of superhard aluminum alloy matrix

[0056]

[0057] (2) Spraying: Put the aluminum alloy substrate after the surface sandblasting treatment into the thermal spraying room, first preheat the surface, in order to prevent the temperature from being too high, use compressed air to cool the sample surface during the entire spraying process;

[0058] The supersonic flame spraying method is used for spraying: through the high-speed and high-temperature flame generated in the combustion chamber ...

Embodiment 3

[0067] This embodiment provides a surface treatment method for an aluminum alloy material, comprising the following steps:

[0068] (1) Coarsening: by degreasing and cleaning the surface of the superhard aluminum alloy substrate, performing CNC rough milling and grinding treatment on the surface requiring high gloss, and then performing roughening treatment on the surface by sandblasting to form a zigzag structure with a rough surface The degree reaches 3.2μm;

[0069] Table 3 Composition of superhard aluminum alloy matrix

[0070]

[0071] (2) Spraying: Put the aluminum alloy substrate after the surface sandblasting treatment into the thermal spraying room, first preheat the surface, in order to prevent the temperature from being too high, use compressed air to cool the sample surface during the entire spraying process;

[0072] Spraying by supersonic flame spraying method: through the high-speed and high-temperature flame generated in the combustion chamber by compressed...

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Abstract

The invention belongs to the technical field of surface treatment and particularly relates to an aluminum alloy material and a surface treatment method of the aluminum alloy material. The aluminum alloy surface treatment method comprises the step that polishing is conducted on an aluminum alloy matrix with the surface provided with a wear-proof coating with the hardness of 900HV or over and the roughness Ra of 1-5 microns; the polishing treatment comprises the step that precision carving treatment is conducted on the wear-proof coating. By the adoption of the aluminum alloy material, on the basis that excellent wear resistance, high hardness and other features are kept, the obtained aluminum alloy material has high smooth finish, and the obtained aluminum alloy material can be used for manufacturing high-finish injection molding mold.

Description

technical field [0001] The invention belongs to the technical field of surface treatment, and in particular relates to an aluminum alloy material and a surface treatment method and application thereof. Background technique [0002] In order to make plastic products have good surface gloss and smooth appearance, the mold material needs to have high mirror polishing, so that the molding surface can be processed into a smooth and mirror state according to product requirements. [0003] The usual high-gloss injection mold is made of mold steel, and the high-gloss parts are polished to a mirror surface of 12-14 by sandpaper, oil stone, wool wool and abrasive polishing paste. This type of mold has a service life of hundreds of thousands or even millions of mold times, and has high wear resistance. However, the existing steel injection mold has slow heat conduction, and its thermal conductivity is about 1 / 5 of that of aluminum alloy, which makes the molding cycle of injection mold...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C4/18C23C4/129C23C4/06C22C21/10B24B1/00B24B19/20B24B29/02B24C1/06B29C45/26B29C33/38
CPCC23C4/18C23C4/129C23C4/06C22C21/10B24B1/00B24B19/20B24B29/02B24C1/06B29C45/26B29C33/3842
Inventor 李涵蒋飞黄维邦朱建华罗科峰陈飞帆王凯
Owner GUANGDONG MIDEA WHITE HOME APPLIANCE TECH INNOVATION CENT CO LTD
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