Production process of high-strength aluminum alloy applied to bicycle frame

A production process, aluminum alloy technology, applied in the direction of metal material coating process, manufacturing tools, furnaces, etc., can solve the problems of environmental pollution, fatigue resistance and insufficient strength, and increase the nucleation rate, elongation and fatigue resistance. The effect of enhanced performance and increased hardness

Active Publication Date: 2022-04-15
ANHUI LANT ALUMINUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention: the existing aluminum alloy materials used in bicycle workshops have insufficient fatigue resistance and strength, and the coatings for preventing aluminum alloy surface corrosion have the problem of environmental pollution

Method used

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  • Production process of high-strength aluminum alloy applied to bicycle frame
  • Production process of high-strength aluminum alloy applied to bicycle frame
  • Production process of high-strength aluminum alloy applied to bicycle frame

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The ceramic composite material is prepared by the following steps:

[0031] In the first step, 2g TiB 2 Nanoparticles and 2g CeB 6 Nanoparticles were immersed in 45mL of acetone, filtered, dried, placed in a muffle furnace for oxidation, naturally cooled to room temperature, washed with deionized water, and dried to obtain modified TiB 2 Nanoparticles and Modified CeB 6 Nanoparticles;

[0032] In the second step, after mixing 1.4mL triphenylsilanol and 25mL ethanol aqueous solution evenly, a uniform solution is obtained;

[0033] The third step, the modified TiB 2 Nanoparticles and Modified CeB 6 Nanoparticles are dispersed in a homogeneous solution, stirred and reacted for 1 hour, filtered, washed and dried to obtain a ceramic composite material.

Embodiment 2

[0035] The ceramic composite material is prepared by the following steps:

[0036] In the first step, 2.5g TiB 2 Nanoparticles and 2.4g CeB 6 Nanoparticles were immersed in 50mL acetone, filtered, dried, placed in a muffle furnace for oxidation, cooled to room temperature naturally, washed with deionized water, and dried to obtain modified TiB 2 Nanoparticles and Modified CeB 6 Nanoparticles;

[0037]In the second step, after mixing 2mL triphenylsilanol and 30mL ethanol aqueous solution evenly, a uniform solution is obtained;

[0038] The third step, the modified TiB 2 Nanoparticles and Modified CeB 6 Nanoparticles are dispersed in a homogeneous solution, stirred and reacted for 2 hours, filtered, washed and dried to obtain a ceramic composite material.

Embodiment 3

[0040] A high-strength aluminum alloy production process applied to bicycle frames, comprising the following steps:

[0041] S1. Heat 90 kg of electrolytic aluminum ingot to 720°C to obtain electrolytic aluminum liquid, transfer it to a smelting furnace, add 1 kg of metal Mg, 1 kg of crystalline silicon Si, 0.8 kg of metal Cu, and 0.5 kg of metal Mn, heat to melt and stir evenly Obtain alloy melt;

[0042] S2. The temperature of the alloy melt is controlled in the range of 730° C., and the ceramic composite material prepared in Example 1 with an alloy melt mass of 1.5% is added into the alloy melt, and stirred and mixed evenly;

[0043] S3. Control the temperature to 720°C, blow the aluminum alloy refining agent into the bottom of the furnace evenly with nitrogen through the steel pipe, stir and refine for 10 minutes, remove scum, and let it stand for 1 hour;

[0044] S4, out of the furnace and pouring, to obtain the billet of the cast rod, which is formed by hot extrusion, a...

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Abstract

The invention relates to a production process of a high-strength aluminum alloy applied to a bicycle frame, and belongs to the technical field of alloy material preparation, and the production process comprises the following steps: transferring electrolytic aluminum liquid into a smelting furnace, adding Mg, Si, Cu and Mn, and heating for melting; adding a ceramic composite material; adding an aluminum alloy refining agent; discharging and pouring to obtain a cast rod blank, and carrying out hot extrusion forming and heat treatment on the cast rod blank to obtain an aluminum alloy pipe; and the surface of the aluminum alloy pipe is dip-coated with a super-hydrophobic coating. According to the technical scheme, the TiB2 and CeB6 nano-particles are introduced into the aluminum alloy melt, the TiB2 and CeB6 nano-particles have the potential of serving as nuclei, the nucleation rate during crystallization and solidification is increased, and the effect of refining aluminum alloy grains is achieved, so that the hardness of the generated aluminum alloy is increased, the elongation and the fatigue resistance are greatly improved, and the service life of the aluminum alloy is prolonged. The bicycle frame can pass the safety standard of European Union for the bicycle frame.

Description

technical field [0001] The invention belongs to the technical field of alloy material preparation, and in particular relates to a high-strength aluminum alloy production process applied to bicycle frames. Background technique [0002] At present, the most widely used frame aluminum alloy material is 6061 alloy. 6061 aluminum alloy is a material with relatively good comprehensive properties such as corrosion resistance, strength, weldability, and heat treatment processability. 7005 alloy is also commonly used to make bicycle frames. Its strength is higher than that of 6061, and it will undergo aging at room temperature, which can improve its performance to a certain extent. However, the cold forming, welding and heat treatment of this 7005 aluminum alloy are relatively difficult. 7075 is super duralumin, which is widely used in aviation industry, but it is difficult to weld and has poor corrosion resistance (it will turn white). It is mostly used in high-strength non-welded ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/02C22C1/06C22C21/02C22C21/08C22C21/14C22C21/16C22F1/043C22F1/047C22F1/057C23C26/00C23F1/20B21C23/08C21D9/08
CPCY02P10/20
Inventor 袁学兵潘祖堂熊茂清
Owner ANHUI LANT ALUMINUM
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