High-strength antibacterial aluminum alloy for aluminum alloy ladder and preparation method thereof

An aluminum alloy, high-strength technology, applied in the direction of anodic oxidation, electrolytic coating, surface reaction electrolytic coating, etc., can solve the problems of bacteria growth on the surface of aluminum alloy, unfavorable human health, etc., and achieve good air isolation effect and hole sealing High speed and improved corrosion resistance

Active Publication Date: 2017-09-26
浙江洋铭实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this layer of anti-corrosion protection film solves the anti-corrosion problem of aluminum alloy, it does not solve the problem of bacterial growth on the surface of aluminum alloy. If the ladder assembled by this aluminum alloy is used for a long time, a large number of bacteria will accumulate on the surface of aluminum alloy, which is not conducive to human health.

Method used

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  • High-strength antibacterial aluminum alloy for aluminum alloy ladder and preparation method thereof
  • High-strength antibacterial aluminum alloy for aluminum alloy ladder and preparation method thereof
  • High-strength antibacterial aluminum alloy for aluminum alloy ladder and preparation method thereof

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Effect test

Embodiment 1

[0033] The weight percent of the raw material component that the high-strength antibacterial aluminum alloy of the present embodiment uses is as follows:

[0034] Zinc 4.5%, magnesium 1.8%, copper 1.05%, zirconium 0.13%, iron 0.13%, silicon 0.14%, chromium 0.07%, manganese 0.08%, boron 0.75%, nickel 0.56%, compound rare earth 0.8%, the balance is aluminum, The compound rare earth contains 15% of cerium, 14% of neodymium, 10% of samarium, 10% of praseodymium, and the balance is lanthanum.

[0035] The preparation method of the high-strength antibacterial aluminum alloy of the present embodiment is as follows:

[0036] Step 1, metal smelting: remove the rust, scale, grease, sand and other dirt and debris on the surface of each metal raw material, then dry it, weigh the ingredients according to the above ingredient ratio, and add aluminum to the vacuum furnace after the ingredients are completed. And raise the temperature to 735°C until the aluminum is completely melted, then ad...

Embodiment 2

[0052] The weight percent of the raw material component that the high-strength antibacterial aluminum alloy of the present embodiment uses is as follows:

[0053] Zinc 6.5%, magnesium 0.8%, copper 1.75%, zirconium 0.05%, iron 0.19%, silicon 0.05%, chromium 0.10%, manganese 0.03%, boron 0.36%, nickel 0.13%, complex rare earth 1.8%, the balance is aluminum, Among them, the composite rare earth contains 19% of cerium, 10% of neodymium, 6% of samarium, 14% of praseodymium, and the balance is lanthanum.

[0054] The preparation method of the high-strength antibacterial aluminum alloy of the present embodiment is as follows:

[0055] Step 1, metal smelting: remove the rust, scale, grease, sand and other dirt and debris on the surface of each metal raw material, then dry it, weigh the ingredients according to the above ingredient ratio, and add aluminum to the vacuum furnace after the ingredients are completed. And raise the temperature to 735°C until the aluminum is completely melt...

Embodiment 3

[0070] The weight percent of the raw material component that the high-strength antibacterial aluminum alloy of the present embodiment uses is as follows:

[0071] Zinc 5.2%, magnesium 1.2%, copper 1.38%, zirconium 0.09%, iron 0.15%, silicon 0.08%, chromium 0.08%, manganese 0.04%, boron 0.52%, nickel 0.41%, compound rare earth 1.1%, the balance is aluminum, The compound rare earth contains 18% of cerium, 12% of neodymium, 8% of samarium, 12% of praseodymium, and the balance is lanthanum.

[0072] The preparation method of the high-strength antibacterial aluminum alloy of the present embodiment is as follows:

[0073] Step 1, metal smelting: remove the rust, scale, grease, sand and other dirt and debris on the surface of each metal raw material, then dry it, weigh the ingredients according to the above ingredient ratio, and add aluminum to the vacuum furnace after the ingredients are completed. And raise the temperature to 735°C until the aluminum is completely melted, then add...

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Abstract

The invention relates to the technical field of aluminum alloy ladder preparation, and particularly relates to high-strength antibacterial aluminum alloy for an aluminum alloy ladder and a preparation method thereof. The aluminum alloy comprises a high-strength aluminum alloy matrix and a micro-arc oxidation film, wherein the micro-arc oxidation film is arranged on the surface of the aluminum alloy matrix, the weight of a hole sealing agent on the micro-arc oxidation film is 0.15 g / cm<2> to 0.90 g / cm<2>, and the hole sealing agent covers at least 92% of micropores in the micro-arc oxidation film. The preparation method comprises the steps of smelting metal, modifying, refining and degassing, pouring and forming and performing quenching treatment, aging treatment, micro-arc oxidation and hole sealing treatment, wherein in the step of modifying, nanometer modificators are uniformly dispersed into liquid alloy obtained by smelting; in the step of refining and degassing, 0.23% to 0.38% of hexachloroethane is added to the modified liquid alloy so as to refine and degas; and the aging treatment is divided into four-stage aging treatment. The aluminum alloy prepared by adopting the preparation method has the characteristics of high hardness, high strength, wear resistance, corrosion resistance, good anti-cracking performance, good antibacterial effect, difficulty in aging and deformation and long service life.

Description

technical field [0001] The invention relates to the technical field of preparation of aluminum alloy ladders, in particular to a high-strength antibacterial aluminum alloy used for aluminum alloy ladders and a preparation method thereof. Background technique [0002] A ladder is a daily utensil, generally made of two thick poles, with a crossbar suitable for climbing across the middle, used for climbing. At present, there are all kinds of ladders on the market, including telescopic ladders that can be extended and shortened, folding ladders that can be folded and carried easily, and ladder ladders that are more stable and do not need to be supported by walls. From the main materials used, it can be divided into aluminum alloy ladders, stainless steel ladders, fiberglass ladders, bamboo ladders and wooden ladders. Aluminum alloy has the characteristics of low density, high specific strength and specific stiffness, good thermal conductivity, excellent castability and good pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/10C22C1/02C22C1/06C22F1/053C25D11/06C25D11/24
CPCC22C1/026C22C1/06C22C21/10C22F1/002C22F1/053C25D11/026C25D11/06C25D11/246
Inventor 胡洋铭
Owner 浙江洋铭实业有限公司
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