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A lightweight high-strength aluminum alloy

An aluminum alloy and high-strength technology, applied in the field of metal materials, can solve problems such as low strength and hardness, poor toughness, and inability to withstand impact forces, and achieve the elimination of coarse non-equilibrium solidification eutectic and dendrite segregation, and the precipitation of strengthening phases with reasonable distribution , The effect of heat treatment process improvement

Active Publication Date: 2017-05-24
TIANCHANG ZHENGMU ALUMINUM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, light-weight high-strength aluminum alloy materials are widely used in construction, military and industrial fields. The light-weight high-strength aluminum alloy materials produced by civil and military enterprises have low strength, low hardness, and poor toughness, which cannot meet the requirements of modern technology development for lightweight high-strength aluminum alloys. Alloy materials require high load, light weight and good toughness
Existing bats made of lightweight high-strength aluminum alloy materials often have low strength and hardness, and cannot withstand the impact force of the ball on the bat when hitting the ball violently. In addition, the bats made of existing lightweight high-strength aluminum alloy materials The toughness is poor, and it cannot be quickly restored to its original shape by the violent impact of the ball, and it often causes brittle cracks, or causes vibration and shock to the human body, making people feel uncomfortable and reducing the quality of exercise.

Method used

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  • A lightweight high-strength aluminum alloy

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] S1: Smelting, weighing each raw material according to its composition, adding the aluminum ingot into the melting furnace and heating it to 750°C to make it completely melted, then adding other raw materials in order of melting point from high to low, and wait until the other raw materials are completely After melting, all the raw materials were added and completely melted, and all the slag removal operations were carried out, and the alloy melt was obtained at 720°C for 30 minutes, and poured. After the alloy melt solidified, the mold was opened, and the ingot was air-cooled to room temperature; During the solidification process of the melt, the alloy melt is vibrated by knocking on the mold, and the melting process of each raw material is carried out in a sealed space;

[0028] S2: Homogenization, place the ingot obtained in S1 in a holding furnace at room temperature, and raise the temperature to 400°C at a constant speed of 60°C / h, and then heat it at a constant spee...

Embodiment 2

[0032]S1: Smelting, weighing each raw material according to its composition, adding the aluminum ingot into the melting furnace and heating it to 700°C to make it completely melted, then adding other raw materials in order of melting point from high to low, and wait until the other raw materials are completely After melting, all the raw materials were added and completely melted, and all the slag removal operations were carried out, and the alloy melt was obtained at 680°C for 2 hours, and poured. After the alloy melt solidified, the mold was opened, and the ingot was air-cooled to room temperature; During the solidification process of the melt, the alloy melt is vibrated by knocking on the mold, and the melting process of each raw material is carried out in a sealed space;

[0033] S2: Homogenization, place the ingot obtained in S1 in a holding furnace at room temperature, and raise the temperature to 400°C at a constant speed of 60°C / h, and then heat it at a constant speed of...

Embodiment 3

[0037] S1: Melting, weighing each raw material according to its composition, adding the aluminum ingot into the melting furnace and heating it to 720°C to make it completely melted, then adding other raw materials in order of melting point from high to low, and wait until the other raw materials are completely After melting, all the raw materials were added and completely melted, and all the slag removal operations were carried out, and the alloy melt was obtained at 700°C for 1 hour, and poured. After the alloy melt solidified, the mold was opened, and the ingot was air-cooled to room temperature; During the solidification process of the melt, the alloy melt is vibrated by knocking on the mold, and the melting process of each raw material is carried out in a sealed space;

[0038] S2: Homogenization, place the ingot obtained in S1 in a holding furnace at room temperature, and raise the temperature to 400°C at a constant speed of 60°C / h, and then heat it at a constant speed of ...

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Abstract

The invention discloses a lightweight high-strength aluminum alloy. The lightweight high-strength aluminum alloy comprises the following components by weight: 0.05% of Si, 0.08 to 0.15% of Fe, 2.0 to 2.2% of Cu, 0.05% of Mn, 2.3 to 2.8% of Mg, 0.01% of Cr, 7.2 to 7.8% of Zn, 0.06 to 0.08% of Ti and 0.15% of Zr, with the balance being Al. According to the invention, through increase of the content of zinc in the composition of the aluminum alloy, strength and hardness of the aluminum alloy are effectively improved; through increase of the content of titanium in the aluminum alloy, crystal grains are refined, brittleness is inhibited, and the disadvantage of poor toughness of conventional aluminum alloys is overcome; through improvement of melting and heat treatment technology, overall performance of the aluminum alloy is effectively enhanced, and the aluminum alloy can meet requirements of modern technological development for high-load, lightweight and good toughness of aluminum alloy materials; and the aluminum alloy has the characteristics of light weight, good toughness and fast travel distance of hit balls when applied to a baseball bat.

Description

technical field [0001] The invention relates to the field of metal materials, in particular to a lightweight high-strength aluminum alloy. Background technique [0002] Baseball and softball are a kind of ball games characterized by playing with a bat, and are highly collective and antagonistic. Most of the bats are metal bats. With the development of sports, more and more people like to enjoy the fun brought by this type of sports. The quality of the bat directly determines the quality of sports. A good quality bat not only needs a certain hardness and strength to withstand the impact of the ball during strenuous exercise, but also has good toughness to reduce the impact of the ball on the human body during exercise. , to reduce the damage to the human body during exercise. [0003] Aluminum alloy is a general term for aluminum-based alloys. The main alloying elements include copper, silicon, magnesium, zinc, and manganese, and the secondary elements include nickel, iron,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/10C22C1/02C22F1/053
CPCC22C1/026C22C21/10C22F1/053
Inventor 周良正
Owner TIANCHANG ZHENGMU ALUMINUM TECH
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