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High-strength fatigue-resistant aluminum alloy door frame and preparation technique thereof

A preparation process and aluminum alloy technology, which is applied in the field of aluminum alloy door frames, can solve problems such as high strength and high fatigue resistance, and achieve the effects of improving life, high temperature strength, and fatigue resistance

Inactive Publication Date: 2018-09-14
河南颇文商贸有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it still cannot meet the requirements of high strength and high fatigue resistance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The high-strength fatigue-resistant aluminum alloy door frame of this embodiment contains the following elements in terms of weight percentage: silicon powder: 6.18%, magnesium: 1.28%, iron powder: 0.89%, nano-carbon powder: 0.56 %, boron: 0.12%, titanium: 0.03%, chromium: 0.26%, nitrogen: 0.16%, trace elements: 0.005%, impurities are controlled at less than or equal to 0.01%, and the rest is aluminum.

[0033] Wherein, the nitrogen element in the aluminum alloy door frame exists in the form of nitride.

[0034] Wherein, the nitride is at least one of titanium nitride, aluminum nitride and silicon nitride.

[0035] Wherein, the trace element addition element is at least one of yttrium, cerium, promethium, gallium, and bismuth.

[0036] The present invention also provides a preparation process for the above-mentioned high-strength fatigue-resistant aluminum alloy door frame, which includes the following steps:

[0037] (1) Add pure aluminum to the resistance furnace, a...

Embodiment 2

[0049] The high-strength fatigue-resistant aluminum alloy door frame of this embodiment contains the following elements by weight percentage: silicon powder: 12.87%, magnesium: 3.56%, iron powder: 1.75%, nano-carbon powder: 0.95% %, boron: 0.31%, titanium: 0.16%, chromium: 0.48%, nitrogen: 0.54%, trace elements: 0.12%, impurities are controlled at less than or equal to 0.01%, and the rest is aluminum.

[0050] Wherein, the nitrogen element in the aluminum alloy door frame exists in the form of nitride.

[0051] Wherein, the nitride is at least one of titanium nitride, aluminum nitride and silicon nitride.

[0052] Wherein, the trace element addition element is at least one of yttrium, cerium, promethium, gallium, and bismuth.

[0053] The present invention also provides a preparation process for the above-mentioned high-strength fatigue-resistant aluminum alloy door frame, which includes the following steps:

[0054] (1) Add pure aluminum to the resistance furnace, and raise...

Embodiment 3

[0066] The high-strength fatigue-resistant aluminum alloy door frame of this embodiment contains the following elements by weight percentage: silicon powder: 9.45%, magnesium: 2.05%, iron powder: 1.25%, nano-carbon powder: 0.70 %, boron: 0.22%, titanium: 0.11%, chromium: 0.37%, nitrogen: 0.44%, trace elements: 0.08%, impurities are controlled at less than or equal to 0.01%, and the rest is aluminum.

[0067] Wherein, the nitrogen element in the aluminum alloy door frame exists in the form of nitride.

[0068] Wherein, the nitride is at least one of titanium nitride, aluminum nitride and silicon nitride.

[0069] Wherein, the trace element addition element is at least one of yttrium, cerium, promethium, gallium, and bismuth.

[0070] The present invention also provides a preparation process for the above-mentioned high-strength fatigue-resistant aluminum alloy door frame, which includes the following steps:

[0071] (1) Add pure aluminum to the resistance furnace, and raise t...

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Abstract

The invention discloses a high-strength fatigue-resistant aluminum alloy door frame and a preparation technique thereof. The high-strength fatigue-resistant aluminum alloy door frame includes the following elements of, by weight, 6.18-12.87% of silicon powder, 1.28-3.56% of magnesium, 0.89-1.75% of iron powder, 0.56-0.95% of nanometer carbon powder, 0.12-0.31% of boron, 0.03-0.16% of titanium, 0.26-0.48% of chromium, 0.16-0.54% of nitrogen, 0.005-0.12% of minor additive elements, impurities controlled to be smaller than or equal to 0.01% and the balance Al. According to the high-strength fatigue-resistant aluminum alloy door frame and the preparation technique thereof, by optimizing the contents of all the components, mutual compensation is conducted, and the problems that in the using process of an existing aluminum alloy, strength is low, and deformation is likely to occur are solved; and the aluminum alloy door frame made of the materials has great impact resistance and fatigue resistance, the service life of the aluminum alloy door frame is greatly prolonged, and accidents are reduced.

Description

technical field [0001] The invention relates to the technical field of aluminum alloy door frames, in particular to a high-strength fatigue-resistant aluminum alloy door frame and a preparation process thereof. Background technique [0002] The aluminum alloy door frame is a door frame component made of surface-treated aluminum alloy profiles through blanking, drilling, milling, tapping, manufacturing and other processing processes, and then used with connectors, sealing materials and opening and closing hardware accessories Assembled. With the continuous advancement of science and technology and the continuous improvement of living standards, the requirements for the mechanical strength and fatigue resistance of aluminum alloy door frames are also increasing. [0003] Therefore, it is necessary to look for a high-strength fatigue-resistant aluminum alloy door frame. [0004] After searching the prior art, a Chinese invention patent application 201510285971.X (published on...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/02C22C1/10C22F1/043C22F1/02
CPCC22C1/1036C22C21/02C22F1/02C22F1/043C22C1/1047
Inventor 向晓霞
Owner 河南颇文商贸有限公司
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