Large-size variable-curvature aluminum alloy wallboard preloading equipment and forming method

An aluminum alloy and preloading technology, which is applied in the field of preloading equipment and forming of large-scale variable curvature aluminum alloy siding, can solve problems such as cracks and breakage of siding ribs, and influence of siding performance, and achieve large forming force, Reliable molding and high production efficiency

Active Publication Date: 2022-03-25
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the patent CN104561848A, in order to reduce the hanging height between the mold and the wall plate, a method of creep aging forming after rolling bending is proposed. This method is easy to cause cracks or even breakage of the wall plate ribs during the wall plate rolling process. , has a great influence on the performance of the wall panel after creep aging forming

Method used

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  • Large-size variable-curvature aluminum alloy wallboard preloading equipment and forming method
  • Large-size variable-curvature aluminum alloy wallboard preloading equipment and forming method
  • Large-size variable-curvature aluminum alloy wallboard preloading equipment and forming method

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Experimental program
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Effect test

Embodiment 1

[0066] This embodiment provides a method for forming a large-size variable-curvature aluminum alloy panel, which includes the following steps:

[0067] 1. First mill the aluminum alloy wall panel with the size of 5000×3000×6mm into the required shape of the ribbed wall panel, and the milling depth is 2mm;

[0068] 2. Lift the mold to the bottom of the gantry with a crane and complete the positioning of the mold. Put the ribbed wallboard after milling into the mold for positioning, set sealant around the mold, and lay air-permeable air on the upper surface of the wallboard. felt, vacuum bag, silicone;

[0069]3. Because the hanging height between the wall plate and the mold is too high, the pushing distance of the push rod of the loading box is limited, so it is necessary to use a jack for part of the pushing; firstly, adjust the jack at the upper end of the loading box so that the push rod 2.3 of each loading box is formed to be in line with the mold The curvature of the surf...

Embodiment 2

[0072] This embodiment provides a method for forming a large-size variable-curvature aluminum alloy panel, which includes the following steps:

[0073] 1. First mill the aluminum alloy wall panel with the size of 4000×2500×5mm into the required shape of the ribbed wall panel, and the milling depth is 2mm;

[0074] 2. Lift the mold to the bottom of the gantry with a crane and complete the positioning of the mold. Put the ribbed wallboard after milling into the mold for positioning, set sealant around the mold, and lay air-permeable air on the upper surface of the wallboard. felt, vacuum bag, silicone;

[0075] 3. The panel forming requirement is a multi-curvature panel with a small curvature. Since the push rod of the loading box meets the maximum hanging height, the push rod on the loading box can be directly used for preloading. Firstly, the motor in each loading box is driven , so that the push rods 2.3 of each loading box form a curvature similar to that of the mold surfac...

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Abstract

The invention discloses preloading equipment and a forming method for a large-size variable-curvature aluminum alloy wall plate. The preloading equipment comprises a portal frame and a loading mechanism array. The portal frame comprises a plurality of supporting arm groups with supporting arms and cross beams, the loading mechanism array comprises a plurality of loading mechanism units, each loading mechanism unit comprises a loading box and a jack, each loading box comprises a box body, a push plate, a push rod and a driving device, and each driving device comprises a driving motor, a pinion, a bull gear, a screw rod and a fixing plate. The preloading equipment can adapt to large-size wallboards with different curvatures and reduce the large-size hanging height under a certain loading pressure condition, then vacuum force is used for keeping the aluminum alloy wallboards tightly attached to the mold, finally mechanical loading force is removed, the mold and the wallboards are fed into an autoclave for creep aging forming, the process is stable and reliable, and the production efficiency is high. And the situation that the vacuum bag is broken due to the fact that the vacuum process is difficult to control does not exist.

Description

technical field [0001] The invention relates to the technical field of forming aluminum alloy sidings, in particular to a large-size variable-curvature aluminum alloy siding preloading device and a forming method. Background technique [0002] In the process of using the autoclave creep aging forming process to prepare large-size single / multi-curvature aluminum alloy panels, first use the crane to place the large-size panel on the upper surface of the mold with a certain curvature and complete the positioning, and set a seal around the mold Glue, lay air felt and vacuum bag on the surface of the wall board, then seal the vacuum bag, turn on the vacuum system of the autoclave to make the wall board and the mold surface fit, put the mold and the wall board together into the autoclave for creep Variable aging molding. [0003] In the prior art, the entire vacuum compaction process is artificially controlled during the creep aging forming process of aluminum alloy siding, that ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D5/02B21D35/00B23P15/00
CPCB21D5/0209B21D35/002B23P15/00
Inventor 湛利华张德超杨有良钟掘
Owner CENT SOUTH UNIV
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