Novel high-strength anti-corrosion aluminum alloy safety guardrail

A safety guardrail and high-strength technology, which is applied in the municipal field, can solve the problems of aluminum alloys with less steel strength and formability, uneven structure, and inability to meet the requirements, so as to save resources, reduce smelting temperature, and reduce the effect of impact.

Inactive Publication Date: 2016-06-08
董超超
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In related technologies, aluminum alloy has the advantages of melting point, corrosion resistance, heat resistance, wear resistance, easy coating and good processability. However, aluminum alloy rarely has the strength and formability of steel, so that aluminum alloy cannot completely replace steel
Although an oxide film is formed on the surface of the aluminum alloy in the natural environment to resist corrosion, the oxide film formed on the surface of the aluminum alloy in the natural environment is about 4nm thick, loose and porous and has an uneven structure. Occurs from the pores of the oxide film, or from the wear of the oxide film, resulting in metal failure, which cannot meet the requirements of today's industrial development

Method used

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  • Novel high-strength anti-corrosion aluminum alloy safety guardrail
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  • Novel high-strength anti-corrosion aluminum alloy safety guardrail

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A new type of high-strength anti-corrosion aluminum alloy safety guardrail, said safety guardrail includes Mg0.2%, Si2.0%, Cu4.0%, Mn0.2%, Fe0.2%, Zr0.1%, Er0. 1%, Cr0.01%, Ni0.01%, Ti0.1%, Al balance.

[0018] A method for preparing a novel high-strength anti-corrosion aluminum alloy safety guardrail, the safety guardrail is made by the following steps:

[0019] (1) Preheat the heating furnace and pure aluminum used in smelting at 300°C for 1 to 2 hours; (2) After the preheated pure aluminum is completely melted in a heating furnace with a melting temperature of 750°C under reduced pressure, add single Crystalline silicon particles and single crystal silicon particles are melted and then added with aluminum-copper master alloy, aluminum-manganese master alloy, aluminum-chromium master alloy, aluminum-nickel master alloy, aluminum-iron master alloy, aluminum-zirconium master alloy and a small amount of rare earth element erbium, and keep warm for a period of time After...

Embodiment 2

[0030] A new type of high-strength anti-corrosion aluminum alloy safety guardrail, said safety guardrail includes Mg0.6%, Si3.5%, Cu6.0%, Mn0.3%, Fe0.3%, Zr0.5%, Er0. 5%, Cr0.02%, Ni0.02%, Ti0.2%, Al balance.

[0031] A method for preparing a novel high-strength anti-corrosion aluminum alloy safety guardrail, the safety guardrail is made by the following steps:

[0032] (1) Preheat the heating furnace and pure aluminum used in smelting at 320 for 1 to 2 hours; (2) After the preheated pure aluminum is completely melted in a heating furnace with a melting temperature of 750°C under reduced pressure, add single crystal Silicon particles, single crystal silicon particles are melted and then added with Al-Cu master alloy, Al-Mn master alloy, Al-Cr master alloy, Al-Ni master alloy, Al-Fe master alloy, Al-Zr master alloy and a small amount of rare earth element erbium, and keep warm for a period of time until The master alloy is completely melted, after fully stirring, the heating f...

Embodiment 3

[0044] A new type of high-strength anti-corrosion aluminum alloy safety guardrail, said safety guardrail includes Mg0.6%, Si2.0%, Cu5.0%, Mn0.25%, Fe0.25%, Zr0.3%, Er0. 3%, Cr0.015%, Ni0.015%, Ti0.015%, Al balance.

[0045] A method for preparing a novel high-strength anti-corrosion aluminum alloy safety guardrail, the safety guardrail is made by the following steps:

[0046] (1) Preheat the heating furnace and pure aluminum used in smelting at 330°C for 1 to 2 hours; (2) After the preheated pure aluminum is completely melted in a heating furnace with a melting temperature of 750°C under reduced pressure, add single Crystalline silicon particles and single crystal silicon particles are melted and then added with aluminum-copper master alloy, aluminum-manganese master alloy, aluminum-chromium master alloy, aluminum-nickel master alloy, aluminum-iron master alloy, aluminum-zirconium master alloy and a small amount of rare earth element erbium, and keep warm for a period of time ...

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Abstract

The invention discloses a novel high-strength anti-corrosion aluminum alloy safety guardrail. The safety guardrail comprises components in percentage by weight as follows: 0.2% of Mg, 2.0% of Si, 4.0% of Cu, 0.2% of Mn, 0.2% of Fe, 0.1% of Zr, 0.1% of Er, 0.01% of Cr, 0.01% of Ni, 0.1% of Ti and the balance of Al. The safety guardrail is obtained through the following steps: (1) smelting is performed; (2) three metal refinement modifiers including Al-5Ti-B, Al-lOSr and RE are added; (3) a mixture is left to stand for 2 h under the condition of 100 MPa, and an ingot is formed; (4) five-pass hot rolling is performed, and three-pass cold rolling is performed under ultrasonic vibration; (5) laser modification is performed with C and V; (6) a finished product is obtained after surface treatment with a n-octadecyltrichlorosilane solution. Various means are used for modifying and treating the material of the safety guardrail, so that completeness of an oxide film can be still kept under corrosion of the safety guardrail in severe working conditions, metal failure is avoided, and requirements for current industrial development are met.

Description

technical field [0001] The invention relates to the field of municipal administration, in particular to a novel high-strength anti-corrosion aluminum alloy safety guardrail. Background technique [0002] Guardrails are mainly used for the protection and protection of equipment and facilities in roads, factories, workshops, warehouses, parking lots, commercial areas, public places, etc., and are generally made of metal materials. Guardrails are prone to oxidation and damage when exposed to harsh environments for a long time. Compared with steel, aluminum alloy has the characteristics of light weight, which is very suitable for guardrails that need to move quickly. [0003] Aluminum alloy is the most widely used non-ferrous metal structural material in industry, and has been widely used in aviation, aerospace, automobile, machinery manufacturing, shipbuilding and chemical industry. In related technologies, aluminum alloys have the advantages of melting point, corrosion resis...

Claims

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Application Information

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IPC IPC(8): C22C21/16C22C1/03C22F1/057C23C24/10B05D1/18B21B11/00
CPCC22C21/16B05D1/18B21B11/00C22C1/026C22C1/03C22C21/14C22F1/057C23C24/10
Inventor 董超超
Owner 董超超
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