Method for Making a Strong Aluminum Alloy
a technology of aluminum alloy and aluminum alloy, which is applied in the field of making a strong aluminum alloy, can solve the problems of low density, poor tensile strength of al—si—mg alloy, and high cost of sc, and achieve excellent tensile strength, low density, and excellent radiation
Inactive Publication Date: 2014-05-15
NAT CHUNG SHAN INST SCI & TECH
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Benefits of technology
The patent aims to provide a method for making an aluminum alloy with strong tensile strength, low density, and excellent radiation performance.
Problems solved by technology
Al—Si—Mg alloys however exhibit inadequate strength and need improvement.
Sc is rare and therefore expensive.
Accordingly, the Al—Si—Mg alloys added with the Sc are expensive.
Method used
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[0021]Referring to FIG. 1, there is shown a method for providing an aluminum alloy with excellent mechanical properties. The excellent mechanical properties include tensile strength, hardness and radiation and low density.
[0022]At first, there is provided a base material 10. The base material 10 includes 92.55 wt % to 97.38 wt % of aluminum 101, 0.9 wt % to 1.8 wt % of silicon 102, 0.5 wt % of iron 103, 0.6 wt % to 1.2 wt % of copper 104, 0.4 wt % to 1.1 wt % of manganese 105, 0.6 wt % to 1.4 wt % of magnesium 106, less than 0.4 wt % of chromium 107, less than 0.25 wt % of zinc 108 and less than 0.20 wt % of titanium 109. Then, the basic material 10 is added with zirconium 111 and vanadium 112, and molten in argon in an induction furnace, thus providing aluminum alloy melt 11.
[0023]Secondly, the aluminum alloy melt 11 is subjected to degassing and slag-removing before it is subjected to extruding b in the form of chill casting to provide an aluminum alloy nugget 12.
[0024]Thirdly, th...
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Abstract
A method is used to make an aluminum alloy with excellent tensile strength, low density and excellent radiation. The method includes the steps of providing a base material, adding 0.06 wt % to 0.30 wt % of zirconium and 0.06 wt % to 0.30 wt % of vanadium to the base material, and melting the basic material with the zirconium and vanadium to provide an aluminum alloy. The base material includes 92.55 wt % to 97.38 wt % of aluminum, 0.9 wt % to 1.8 wt % of silicon, less than 0.5 wt % of iron, 0.6 wt % to 1.2 wt % of copper, 0.4 wt % to 1.1 wt % of manganese, 0.6 wt % to 1.4 wt % of magnesium, less than 0.40 wt % of chromium, less than 0.25 wt % of zinc and less than 0.20 wt % of titanium.
Description
BACKGROUND OF INVENTION[0001]1. Field of Invention[0002]The present invention relates to a method for making a strong aluminum alloy and, more particularly, to a method for providing an aluminum alloy with excellent tensile strength, hardness and radiation and low density.[0003]2. Related Prior Art[0004]Al—Si—Mg (6000 series) alloys have been used in the defense industry, automobile industry and sports industry for being light weight. Al—Si—Mg alloys however exhibit inadequate strength and need improvement.[0005]To improve the strength of commercially available Al—Si—Mg alloys, they may be added with Sc as a grain refiner. The concentration of the Sc is about 0.03% to 0.20% to increase the tensile strength and hardness of the Al—Si—Mg alloys to about 450 MPa.[0006]Sc is rare and therefore expensive. Accordingly, the Al—Si—Mg alloys added with the Sc are expensive.[0007]The present invention is therefore intended to obviate or at least alleviate the problems encountered in convention...
Claims
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IPC IPC(8): C22C1/02
CPCC22C1/026B22D25/00C22C21/02B22D1/00B22D17/00B22D21/007
Inventor HSU, CHANG-CHUANTORNG, SHANYANG, SY-CHERNGTSENG, FAN-CHUNHUANG, WEI-MINGLUO, REN-AN
Owner NAT CHUNG SHAN INST SCI & TECH