High-strength corrosion-resistant aluminum alloy and preparation method thereof
A corrosion-resistant aluminum alloy, high-strength technology, applied in the field of aluminum alloy materials, can solve the problems of low strength and hardness of the alloy, insufficient strength, low strength and hardness, etc., to increase the ductility and corrosion resistance of the alloy, improve welding performance, The effect of improving the strength of the alloy
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[0025] The preparation method of high-strength corrosion-resistant aluminum alloy includes the following steps: (a) Melting master alloy: Zn, Al, Mg are made of pure zinc ingots, pure aluminum ingots and pure magnesium ingots, and Si, Fe, Mn, Cu and Cr are made of aluminum silicon Master alloys, aluminum-iron master alloys, aluminum-manganese master alloys, aluminum-copper master alloys, and aluminum-chromium master alloys; load pure aluminum ingots into the furnace, set the furnace gas temperature to 760℃, and hold the pure aluminum ingots for 30 minutes after melting for slagging , Then add aluminum-copper master alloy, aluminum-manganese master alloy, aluminum-iron master alloy and pure magnesium ingot into the smelting furnace according to the block weight and size from large to small, and then increase the furnace gas temperature by 15℃ to keep the temperature of the master alloy and After all the magnesium ingots are melted, the furnace gas temperature is increased by 15°C...
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[0030] Example 1
[0031] A high-strength corrosion-resistant aluminum alloy comprising the following components: 1.6% Mg, 1.7% Si, 0.8% Mn, 0.25% Cu, 0.6% Zn, 0.2% Fe, 0.14% Cr, 0.2% For other alloying elements, the balance is Al. The rare earth elements include: 70% Gd, 20% La, and 10% Eu. The other alloying elements include combinations of Ni, V, Ti, Zr, and rare earth elements in a ratio of 0.3:1.7:0.5:1.5:0.2.
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[0032] Example 2
[0033] A high-strength corrosion-resistant aluminum alloy comprising the following components: 1.3% Mg, 2.0% Si, 0.7% Mn, 0.4% Cu, 0.3% Zn, 0.1% Fe, 0.08% Cr, 0.1% For other alloying elements, the balance is Al; other alloying elements include a combination of Ni, V, Ti, Zr, and rare earth elements in a ratio of 0.4:1.6:0.6:1.4:0.2. The rare earth elements include: 70% Gd, 20% La, and 10% Eu.
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