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Aluminum alloy bat long in service life

An aluminum alloy, long-life technology, applied in the field of aluminum alloys, can solve the problems of uncoordinated strength, hardness and corrosion resistance, low adhesion between the film layer and aluminum alloy materials, and low corrosion resistance of aluminum alloys, etc., to achieve Increase corrosion resistance and mechanical properties, coordination of corrosion resistance and mechanical properties, mutual effect of corrosion resistance and mechanical properties

Inactive Publication Date: 2017-01-11
TIANCHANG ZHENGMU ALUMINUM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Baseball bats are often made of aluminum alloy. The corrosion resistance of aluminum alloy is not high, which will easily lead to the short service life of the baseball bat. People often use coating to increase the corrosion resistance of aluminum alloy, but the adhesion between the film layer and the aluminum alloy material It is not high and easy to fall off, so it is necessary to increase its corrosion resistance from the aluminum alloy itself. However, the strength, hardness and corrosion resistance of the current aluminum alloy baseball bats cannot be coordinated. While meeting the high strength and high hardness of baseball bats, Its corrosion resistance is not high, it is easy to corrode, and its service life is short

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] An aluminum alloy ball bat with long service life. The weight percentage of each component is as follows: Si: 0.04%, Fe: 0.04%, Cu: 0.08%, Mn: 0.14%, Mg: 0.8%, Cr: 0.1%, Zn: 0.1%, Ti: 0.04%, Sc: 0.25%, Nd: 0.2%, the balance is Al;

[0016] Among them, Sc*Nd / Mn / Cr=3.57, Sc / Mg+Mg*Zn / Cu=1.3;

[0017] In the process of preparing long-life aluminum alloy ball rods, the aluminum ingot and the remaining raw materials are melted, refined, poured into a solid solution, heated to 440°C, kept for 40 minutes, quenched with water once, cooled to room temperature, and then heated to 440 ℃, keep for 40min, quench twice with water, cool to room temperature, heat up to 150℃, keep for 15h, cool to 120℃, keep for 24h, and cool to room temperature to get long service life aluminum alloy bat.

Embodiment 2

[0019] An aluminum alloy ball bat with long service life, the weight percentage of each component is as follows: Si: 0.05%, Fe: 0.02%, Cu: 0.1%, Mn: 0.1%, Mg: 1%, Cr: 0.08%, Zn: 0.2%, Ti: 0.02%, Sc: 0.3%, Nd: 0.15%, the balance is Al;

[0020] Among them, Sc*Nd / Mn / Cr=5.63, Sc / Mg+Mg*Zn / Cu=2.3;

[0021] In the process of preparing long-life aluminum alloy ball rods, the aluminum ingot and the remaining raw materials are melted, refined, poured into shape, solid solution, heated to 450℃, kept for 30min, quenched with water once, cooled to room temperature, and then heated to 450 ℃, keep for 30min, quench twice with water, cool to room temperature, heat up to 170℃, keep for 10h, cool to 130℃, keep for 20h, and cool to room temperature to get long service life aluminum alloy bat.

Embodiment 3

[0023] An aluminum alloy ball bat with long service life. The weight percentage of each component is as follows: Si: 0.042%, Fe: 0.035%, Cu: 0.085%, Mn: 0.13%, Mg: 0.85%, Cr: 0.095%, Zn: 0.13%, Ti: 0.035%, Sc: 0.26%, Nd: 0.19%, the balance is Al;

[0024] Among them, Sc*Nd / Mn / Cr=4, Sc / Mg+Mg*Zn / Cu=1.61;

[0025] In the process of preparing long-life aluminum alloy ball bars, the aluminum ingot and the remaining raw materials are melted, refined, poured into shape, and dissolved, heated to 442°C, held for 38 minutes, quenched with water once, cooled to room temperature, and then heated to 442 ℃, keep for 38min, quench twice with water, cool to room temperature, warm up to 155℃, keep for 14h, cool to 123℃, keep for 23h, air-cool to room temperature to obtain aluminum alloy bat with long service life.

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PUM

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Abstract

The invention discloses an aluminum alloy bat long in service life. The aluminum alloy bat is composed of, by weight, 0.04%-0.05% of Si, 0.02%-0.04% of Fe, 0.08%-0.1% of Cu, 0.1%-0.14% of Mn, 0.8%-1% of Mg, 0.08%-0.1% of Cr, 0.1%-0.2% of Zn, 0.02%-0.04% of Ti, 0.25%-0.3% of Sc, 0.15%-0.2% of Nd and the balance Al. The expression '2.57<Sc*Nd / Mn / Cr<7.4' is satisfied. The aluminum alloy bat is good in corrosion resistance, high in mechanical performance and long in service life.

Description

Technical field [0001] The invention relates to the technical field of aluminum alloys, in particular to an aluminum alloy bat with a long service life. Background technique [0002] Baseball bats are usually made of aluminum alloy materials. The corrosion resistance of aluminum alloys is not high, which will easily lead to a short service life of baseball bats. People often use coating methods to increase the corrosion resistance of aluminum alloys, but the film layer and aluminum alloy materials adhesion It is not high and easy to fall off. Therefore, it is necessary to increase its corrosion resistance from the aluminum alloy itself. However, the strength, hardness and corrosion resistance of current aluminum alloy baseball bats cannot be coordinated. While meeting the high strength and hardness of baseball bats, Its corrosion resistance is not high, it is easy to corrode and has a short service life. Summary of the invention [0003] Based on the technical problems existing i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/08C22F1/047A63B59/51A63B102/18
CPCC22C21/08A63B59/51A63B2102/18A63B2209/00C22F1/002C22F1/047
Inventor 周良正
Owner TIANCHANG ZHENGMU ALUMINUM TECH
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