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High-strength, high-elongation and corrosion-resistant aluminum foil for honeycomb core and manufacturing method thereof

A manufacturing method and high-strength technology, applied in the direction of metal rolling, etc., can solve the problems of 3003 aluminum alloy honeycomb core, such as soft performance, rolling and wrinkling, and unsatisfactory, so that the version is not easy to wrinkle, the version is smooth, Effect of improving corrosion resistance life

Inactive Publication Date: 2020-09-18
JIANGSU DINGSHENG NEW MATERIAL JOINT STOCK CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] With the development of high-end decoration and super high-rise building demand, the requirements for pressure bearing, wind resistance and corrosion resistance of honeycomb aluminum panels are getting higher and higher. The performance of conventional 3003 aluminum alloy honeycomb cores is soft and difficult It is easy to roll and wrinkle, and then cause missing coating, which can no longer meet the requirements of high-demand usage scenarios

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] 1. A high-strength, high-elongation, corrosion-resistant aluminum foil for a honeycomb core, the aluminum foil is a single-layer light foil, the thickness specification is 0.03-0.06mm, and its composition and mass percentage are:

[0021] Fe0.40~0.60%, Si0.15~0.30%, Cu0.07~0.16%, Mn1.10~1.62%, Mg<0.05%, Zn1.0~1.60%, Ti<0.05%, and the rest is aluminum.

[0022] 1. The tensile strength of the finished aluminum foil is ≥270MPa, the elongation is ≥3%, the surface dyne value is ≥32dyn, and the electrochemical potential is -800±10mV / SCE.

[0023] A method for manufacturing a honeycomb core with high strength, high elongation and corrosion-resistant aluminum foil, the steps of the method are as follows:

[0024] (1) Smelting, casting and rolling: carry out batching, smelting, casting and rolling into a billet with a certain thickness according to the alloy composition;

[0025] (2) Billet rough rolling: the thickness of the cast-rolled billet is rolled to a thickness of 2.0mm...

Embodiment 2

[0042]A method for preparing a high-strength, high-strength, corrosion-resistant aluminum foil for a honeycomb core, the steps are as follows:

[0043] (1) Melting, casting and rolling: Si0.21%, Fe0.4%, Cu0.08%, Mn1.21%, Zn1.15% by weight percentage, the balance is Al as the basic component, and the alloy raw material is prepared Carry out billet smelting and casting and rolling to obtain 7.1*1285mm cast-rolled coils, the temperature of the casting-rolling front box is 702°C, and the length of the casting-rolling zone is 57mm; alloy "DS309";

[0044] (2) Billet rough rolling: the thickness of the cast-rolled billet is rolled to a thickness of 2.0mm by 3 passes through the rough rolling mill, and the rolling pass is 7.1→5.2→4.0→2.0mm;

[0045] (3) High-temperature annealing: The 2.0mm thick coil material obtained in step (2) is rough-rolled and put into the annealing furnace for high-temperature annealing. The annealing process uses the temperature of the furnace gas to rise to...

Embodiment 3

[0053] A method for preparing a high-strength, high-strength, corrosion-resistant aluminum foil for a honeycomb core, the steps are as follows:

[0054] (1) Melting, casting and rolling: by weight percentage Si0.25%, Fe0.50%, Cu0.12%, Mn1.56%, Zn1.59%, the balance is Al as the basic component, and the alloy raw material is prepared Carry out billet smelting and casting and rolling to obtain 6.9*1285mm cast-rolled coils, the temperature of the casting-rolling front box is 706°C, and the length of the casting-rolling zone is 55mm; alloy "DS309";

[0055] (2) Billet rough rolling: the thickness of the cast-rolled billet is rolled to a thickness of 2.0mm by three passes through the rough rolling mill, and the rolling pass is 6.9→5.2→4.0→2.0mm;

[0056] (3) High-temperature annealing: The 2.0mm thick coil obtained from step (2) is rough-rolled and put into the annealing furnace for high-temperature annealing. The annealing process uses the temperature of the furnace gas to be raise...

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Abstract

The invention belongs to the field of aluminum alloy foil rolling and discloses high-strength, high-elongation and corrosion-resistant aluminum foil for a honeycomb core and a manufacturing method thereof. The high-strength, high-elongation and corrosion-resistant aluminum foil for the honeycomb core is composed of, by mass, 0.40-0.60% of Fe, 0.15-0.30% of Si, 0.07-0.16% of Cu, 1.10-1.62% of Mn, smaller than 0.05% of Mg, 1.0-1.60 % of Zn, smaller than 0.05% of Ti, and the balance aluminum. The manufacturing method comprises the steps of smelting, casting-rolling, cogging and rough rolling, high-temperature annealing, intermediate rolling, intermediate trimming, finishing rolling, slitting, inspection and packaging and the like. The prepared aluminum foil finished product has the characteristics of being high in mechanical properties, high in impact resistance, high in elongation and easy to stretch and cut; wrinkling is not prone to happen in the core making process, the bonding quality is good, and the dislocation error is small; and meanwhile, an obvious potential difference exists between the aluminum foil and glued aluminum plates on both sides of the aluminum foil, so that a sacrificial protection effect can be formed to improve prolong the corrosion resistant life of a honeycomb panel.

Description

technical field [0001] The invention relates to the processing technology of aluminum alloy materials, in particular to a high-strength, high-elongation, corrosion-resistant aluminum foil for a honeycomb core and a manufacturing method thereof, belonging to the field of aluminum alloy foil rolling. Background technique [0002] The aluminum honeycomb core is bonded by multiple layers of aluminum foil, laminated, and then stretched to form a regular regular hexagonal honeycomb core. The aluminum honeycomb core has sharp, clear cell walls, no burrs, and is suitable for high-quality core-to-surface bonding and other uses. The core layer of the honeycomb panel is a hexagonal aluminum honeycomb structure, and the dense honeycombs restrained by each other are like many small I-beams, which can disperse the pressure from the direction of the panel, make the panel stressed evenly, and ensure that the panel can still maintain a large area. High flatness. The honeycomb core material...

Claims

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Application Information

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IPC IPC(8): C22C21/00C22C21/10C22F1/04C22F1/053B21B3/00B21B1/46B21B1/40
CPCB21B1/40B21B1/466B21B3/00B21B2003/001C22C21/00C22C21/10C22F1/04C22F1/053
Inventor 田国建刘前换史明飞胡江华胡刘飞
Owner JIANGSU DINGSHENG NEW MATERIAL JOINT STOCK CO LTD
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