Stable manufacturing method of aluminium-alloy medium-thickness plate

A manufacturing method, technology of aluminum alloy substrate, applied in the field of aluminum alloy

Inactive Publication Date: 2019-03-01
湖南恒佳新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to provide a stable manufacturing method for aluminum alloy medium and thick plates to solve the problem of how to Optimizing components, processes, etc., improving the tensile strength and yield strength of aluminum alloy thick plates

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A stable manufacturing method of an aluminum alloy plate, comprising the following steps:

[0046] S1: According to the mass percentage of the elements in the aluminum alloy rear plate, Mg2.5%, Fe≤0.6%, Si≤0.6%, Ni≤0.3%, Cu2.8%, Mn0.26%, Zn6.5%, Cr ≤ 0.4%, Ti ≤ 0.3%, Ca 0.34%, V < 0.4%, Zr 0.3%, the balance is Al, smelting at a temperature of 700°C for 6 hours to obtain an aluminum alloy melt;

[0047] S2: After degassing and filtering the aluminum alloy melt, put the aluminum alloy melt under the conditions of casting temperature of 650°C, casting speed of 60mm / min, cooling water strength of 0.15MPa, and cooling water temperature of 10°C Made into aluminum alloy ingot;

[0048] S3: Heat the aluminum alloy ingot at 450°C for 13 hours, perform stress relief treatment, then heat it in a heating furnace, heat it at 600°C for 5 hours, then hold it at 455°C for 4 hours, and take it out of the furnace;

[0049] S4: cutting the head and tail of the stress-relieved aluminum a...

Embodiment 2

[0055] A stable manufacturing method of an aluminum alloy plate, comprising the following steps:

[0056] S1: According to the mass percentage of the elements in the aluminum alloy rear plate, Mg0.5%, Fe≤0.6%, Si≤0.6%, Ni≤0.3%, Cu0.6%, Mn0.3%, Zn3.5%, Cr ≤ 0.4%, Ti ≤ 0.3%, Ca 0.4%, V < 0.4%, Zr 0.1%, the balance is Al, smelting at a temperature of 730°C for 8 hours to obtain an aluminum alloy melt;

[0057] S2: After degassing and filtering the aluminum alloy melt, put the aluminum alloy melt under the conditions of casting temperature of 690°C, casting speed of 40mm / min, cooling water strength of 0.16MPa, and cooling water temperature of 12°C Made into aluminum alloy ingot;

[0058] S3: Heat the aluminum alloy ingot at 350°C for 15 hours, perform stress relief treatment, then heat it in a heating furnace, heat it at 550°C for 8 hours, then hold it at 460°C for 5 hours, and take it out of the furnace;

[0059] S4: cutting the head and tail of the stress-relieved aluminum all...

Embodiment 3

[0065] A stable manufacturing method of an aluminum alloy plate, comprising the following steps:

[0066] S1: According to the mass percentage of elements in the aluminum alloy rear plate, Mg2.0%, Fe≤0.6%, Si≤0.6%, Ni≤0.3%, Cu2.5%, Mn0.2%, Zn5.5%, Cr≤0.4%, Ti≤0.3%, Ca0.3%, V<0.4%, Zr0.23%, the balance is Al, smelting at a temperature of 750°C for 10 hours to obtain an aluminum alloy melt;

[0067] S2: After degassing and filtering the aluminum alloy melt, put the aluminum alloy melt at a casting temperature of 750°C, a casting speed of 50mm / min, a cooling water strength of 0.17MPa, and a cooling water temperature of 13°C Made into aluminum alloy ingot;

[0068] S3: Heat the aluminum alloy ingot at 380°C for 8 hours, perform stress relief treatment, then heat it in a heating furnace, heat it at 580°C for 10 hours, then hold it at 450°C for 6 hours, and take it out of the furnace;

[0069] S4: cutting the head and tail of the stress-relieved aluminum alloy ingot, and sawing it...

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Abstract

The invention discloses a stable manufacturing method of an aluminium-alloy medium-thickness plate and belongs to the technical field of aluminium alloy. The stable manufacturing method comprises thefollowing steps: (S1) preparation of aluminium-alloy molten liquid; (S2) preparation of an aluminium-alloy cast ingot; (S3) destressing treatment; (S4) sawing of the aluminium-alloy ingot; (S5) solution treatment; (S6) multidirectional forging; (S7) prestretching; (S8) ageing treatment to obtain the finished product. The stable manufacturing method disclosed by the invention has the beneficial effects that by adoption of a reasonable machining process, the comprehensive properties of ductility, strength of extension, yield strength and the like of the aluminium-alloy medium-thickness plate areimproved.

Description

technical field [0001] The invention belongs to the technical field of aluminum alloys, and in particular relates to a stable manufacturing method of aluminum alloy medium and thick plates. Background technique [0002] Aluminum alloy is the most widely used non-ferrous metal structural material in the industry, because of its low density, relatively high strength, close to or exceeding high-quality steel, good plasticity, and excellent electrical conductivity, thermal conductivity and corrosion resistance. It can be processed into various profiles, and is widely used in machinery manufacturing, transportation machinery, power machinery and aviation industry, etc. [0003] The steps of the existing production method for producing aluminum alloy plates are as follows: [0004] 1) Quenching: heat the aluminum alloy plate by immersing it in liquid nitrate salt, after heating for a set time, take the aluminum alloy plate out of the furnace and immediately immerse it in water fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/02C22C21/10C22F1/053
CPCC22C21/10C22C1/026C22F1/002C22F1/053
Inventor 蒋继明蒋会阳陈智斌林建华谢芳
Owner 湖南恒佳新材料科技有限公司
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