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Preparation method of corrosion-resistant double-curvature aluminum alloy plate

An aluminum alloy plate, double curvature technology, used in metal processing equipment, manufacturing tools, metal processing machinery parts, etc., can solve the problem of increasing process complexity, equipment cost, low forming efficiency, no mention of microstructure and corrosion resistance Improve the effect and other issues, achieve high adaptability and production efficiency, reduce anisotropy, and improve the effect of comprehensive mechanical properties

Pending Publication Date: 2022-07-01
JIANGSU RIGID BUILDING MATERIALS TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] 1) Although the low-voltage DC high-current power supply can achieve rapid heating of profiles or thin-walled parts, additional insulation equipment is required for insulation, which increases equipment costs and process complexity
[0009] 2) Although the composite process of drawing + discharge can overcome certain springback problems, it is necessary to use electromagnetic coils to sequentially discharge different areas of the sheet or heat the parts that are easy to wrinkle, which undoubtedly increases the cost of the process. Complexity and equipment cost, resulting in inefficient forming
[0010] 3) The existing technology does not mention the effect of improving the microstructure and corrosion resistance

Method used

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  • Preparation method of corrosion-resistant double-curvature aluminum alloy plate
  • Preparation method of corrosion-resistant double-curvature aluminum alloy plate
  • Preparation method of corrosion-resistant double-curvature aluminum alloy plate

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Embodiment 1

[0050] like Figure 1-3 As shown, the scheme adopted by the corrosion-resistant double-curvature aluminum alloy plate preparation method of the present invention is as follows:

[0051] (1) Material preparation: Saw the H112 state (hot working state) aluminum alloy square billet into 600 (±5mm) × 600 (±5 mm) × 1000 (±5 mm) billets according to the process size requirements, and mark them before forging The pen marks the end face of the blank to distinguish the three directions during forging and pre-stretching to obtain the raw material;

[0052] (2) Homogenization treatment: put the raw materials obtained in step (1) into a furnace at room temperature, heat up to 545±5°C for 6 hours according to the power, and then heat up to 580±5°C for 0.5 hours at a heating rate of 60°C / h, and then pass After 3 hours of cooling to 480 ℃ in the furnace, the temperature is kept for 0.5 hours, and the uniformity of the furnace temperature is ensured, so that the raw materials are soaked;

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Abstract

The invention discloses a preparation method of a corrosion-resistant double-curvature aluminum alloy plate. The preparation method comprises the following technological processes of material preparation, homogenization treatment, multi-axis free forging, recrystallization annealing, saw cutting and face milling, pre-stretching, online rapid heating, double-curvature forming and saw cutting and sizing. The method is convenient to operate, crushing and dissolving of a coarse residual phase and uniform refinement of grain size are effectively promoted through the technologies such as large plastic deformation multi-axis free forging cogging, recrystallization annealing and pre-stretching on the square ingot subjected to grading homogenization treatment, and anisotropy of a formed plate is obviously reduced; and the obdurability and the corrosion resistance of the plate are further improved through deformed double-curvature forming. The obtained aluminum alloy plate has the advantages of being uniform in structure, fine in grain, low in internal stress, good in corrosion resistance, high in surface quality and the like.

Description

technical field [0001] The invention relates to the technical field of aluminum alloy forming and heat treatment, in particular to a preparation method for improving the comprehensive mechanical properties and corrosion resistance of a double-curvature aluminum alloy plate. Background technique [0002] The double-curvature aluminum alloy plate is the new favorite of large-scale high-end engineering architectural decoration design. Its perfect lines are not only easy to set off and integrate with the surrounding environment, but also reflect a strong sense of curve. The main manufacturing process of the double-curvature aluminum alloy plate is to make a module according to the hyperbola designed in the drawing, and then use the module to open the aluminum material, and then go through welding, grinding, polishing, cleaning and painting. The double-curvature aluminum alloy plate is not only beautiful in appearance, but also has the advantages of light weight, good rigidity, h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00B23Q11/10C22F1/04C22F1/047
CPCB23P15/00B23Q11/10C22F1/04C22F1/047
Inventor 王健杨宝金王军阚允
Owner JIANGSU RIGID BUILDING MATERIALS TECH CO LTD
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