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High-strength and high-hardness aluminum alloy profile for fire truck and preparation method thereof

A technology of aluminum alloy profiles and aluminum alloys, which is applied in the field of aluminum alloys, can solve problems that need to be improved, and achieve the effects of reducing crack sensitivity, increasing strength, and reducing content

Active Publication Date: 2020-07-03
安徽鑫铂科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the improvement of people's performance requirements for aluminum alloy profiles, the strength, hardness and corrosion resistance of aluminum alloy profiles for fire trucks still need to be improved.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The present invention proposes a high-strength and high-hardness aluminum alloy profile for fire trucks, including an aluminum alloy substrate and a ceramic coating. The aluminum alloy substrate includes the following components by mass fraction: Mg: 0.7%, Li: 0.7%, Zn: 3.6% , Cu: 0.8%, Mn: 0.5%, Si: 0.3%, Fe: 0.4%, Cr: 0.3%, Ti: 0.15%, Ni: 0.15%, Zr: 0.12%, V: 0.08%, Nb: 0.06% , Sc: 0.08%, Ce: 0.08%, Eu: 0.1%, Er: 0.06%, the rest are Al and unavoidable impurities; the raw materials of ceramic coating include: 10 parts of SiC, 25 parts of Al 2 o 3 , 10 parts of TiN, 6 parts of NiO, 15 parts of TiO 2 .

[0021] The present invention also proposes a method for preparing a high-strength and high-hardness aluminum alloy profile for a fire truck, comprising the following steps:

[0022] S1. Melting the raw materials to obtain the alloy liquid, and obtaining the primary aluminum alloy matrix after casting and extruding;

[0023] S2, heat-treating the primary aluminum allo...

Embodiment 2

[0026] The present invention proposes a high-strength and high-hardness aluminum alloy profile for fire trucks, including an aluminum alloy substrate and a ceramic coating, and the aluminum alloy substrate includes the following components by mass fraction: Mg: 1%, Li: 0.4%, Zn: 3.2% , Cu: 1.2%, Mn: 0.38%, Si: 0.42%, Fe: 0.6%, Cr: 0.2%, Ti: 0.3%, Ni: 0.25%, Zr: 0.06%, V: 0.15%, Nb: 0.12% , Sc: 0.02%, Ce: 0.2%, Eu: 0.05%, Er: 0.15%, the rest are Al and unavoidable impurities; the raw materials of ceramic coating include: 20 parts of SiC, 15 parts of Al 2 o 3 , 20 parts of TiN, 12 parts of NiO, 8 parts of TiO 2 .

[0027] Wherein, the weight ratio between the aluminum alloy substrate and the ceramic coating is 2000:1.5.

[0028] The present invention also proposes a method for preparing a high-strength and high-hardness aluminum alloy profile for a fire truck, comprising the following steps:

[0029] S1. Melting the raw materials to obtain the alloy liquid, and obtaining the p...

Embodiment 3

[0033] A high-strength and high-hardness aluminum alloy profile for a fire truck proposed by the present invention includes an aluminum alloy substrate and a ceramic coating, and the aluminum alloy substrate includes the following components by mass fraction: Mg: 0.85%, Li: 0.55%, Zn: 3.4% , Cu: 1.05%, Mn: 0.45%, Si: 0.34%, Fe: 0.52%, Cr: 0.26%, Ti: 0.22%, Ni: 0.2%, Zr: 0.1%, V: 0.11%, Nb: 0.09% , Sc: 0.05%, Ce: 0.14%, Eu: 0.08%, Er: 0.1%, and the rest are Al and unavoidable impurities; the raw materials of ceramic coating include: 15 parts of SiC, 20 parts of Al 2 o 3 , 15 parts of TiN, 9 parts of NiO, 12 parts of TiO 2 .

[0034] Wherein, the weight ratio between the aluminum alloy substrate and the ceramic coating is 2200:1.

[0035] The present invention also proposes a method for preparing a high-strength and high-hardness aluminum alloy profile for a fire truck, comprising the following steps:

[0036] S1. Melting the raw materials to obtain the alloy liquid, and obt...

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Abstract

The invention discloses a high-strength high-hardness aluminum alloy profile for a fire fighting truck and a preparation method of the high-strength high-hardness aluminum alloy profile. The aluminumalloy profile is prepared from Mg, Li, Zn, Cu, Mn, Si, Fe, Cr, Ti, Ni, Zr, V, Nb, Sc, Ce, Eu, Er and the balance Al and inevitable impurities. The aluminum alloy profile obtained through the preparation method is small in density, large in strength and hardness, good in corrosion resistance and wear resistance, good in machining performance, long in service life and capable of effectively improving performance of the fire fighting truck.

Description

technical field [0001] The invention relates to the technical field of aluminum alloys, in particular to a high-strength and high-hardness aluminum alloy profile for a fire truck and a preparation method thereof. Background technique [0002] Due to its high specific strength, good processing performance, strong corrosion resistance and environmental protection performance, aluminum profiles are widely used in the field of vehicle manufacturing, and can effectively improve the manufacturing efficiency and service life of vehicles. Among them, the fire truck is a special vehicle used to perform fire response tasks, and it has practical significance to improve the performance of the fire truck. With the improvement of people's performance requirements for aluminum alloy profiles, the strength, hardness and corrosion resistance of aluminum alloy profiles for fire trucks still need to be improved. Contents of the invention [0003] Based on the technical problems existing in ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/10C22C1/02C23C4/134
CPCC22C1/02C22C21/10C23C4/134
Inventor 唐开健李杰王超孙金东
Owner 安徽鑫铂科技有限公司
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