A high-strength, toughness, and high-modulus aluminum alloy material and its die-casting process
An aluminum alloy material and die-casting technology, applied in the field of metal materials, can solve the problem that the elastic modulus and strength of the aluminum alloy cannot meet the requirements for use, and achieve the effects of maintaining mechanical properties, simple preparation method, and improving the elastic modulus of the alloy.
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Embodiment 1
[0030] The high-strength, toughness and high-modulus aluminum alloy material provided in this embodiment is composed of the following elements in mass percentage
[0031] Mg: 2.6%, Ce: 0.3%, La: 0.2%, Cr: 5.0%, and unavoidable impurities Fe≤0.3%, Si≤0.15%, Al balance. Its die-casting process is:
[0032] a. Melting the alloy to obtain an aluminum alloy melt. Melting steps: (1) Baking, preheating the raw material at 250°C for 2 hours; (2) Melting, setting the melting temperature of the melting furnace to 800°C, when the furnace temperature rises to 300°C, add industrial pure aluminum until it melts, Stir evenly; heat up the melt to 760°C, add aluminum-cerium, aluminum-lanthanum, aluminum-chromium intermediate alloys, stir evenly until the melt is clear; when the melt temperature drops to 720°C, add industrial pure magnesium, melt, and Stir evenly until the melt is clear; (3) Refining, when the melt temperature reaches 740°C, add powder spraying refining agent (Dingchen) for r...
Embodiment 2
[0036] The high-strength and high-modulus aluminum alloy material provided in this embodiment is composed of the following elements in terms of mass percentage: Mg: 4.1%, Ce: 0.2%, La: 0.1%, Mn: 1.0%, Cr: 1.0%, V: 1.0%, and unavoidable impurities Fe≤0.3%, Si≤0.15%, Al balance. Its die-casting process is:
[0037] a. Melting the alloy to obtain an aluminum alloy melt. Melting steps: (1) Baking, preheating the raw material at 250°C for 2 hours; (2) Melting, setting the melting temperature of the melting furnace to 800°C, when the furnace temperature rises to 300°C, add industrial pure aluminum until it melts, Stir evenly; heat up the melt to 760°C, add aluminum-cerium, aluminum-lanthanum, aluminum-manganese, aluminum-chromium, aluminum-vanadium intermediate alloys, stir evenly until the melt is clear; when the melt temperature drops to 720°C, Add industrial pure magnesium, melt it, and stir it evenly until it melts clear; (3) Refining, when the melt temperature reaches 740°C, ...
Embodiment 3
[0041] The high-strength, toughness and high-modulus aluminum alloy material provided in this embodiment is composed of the following elements by mass percentage: Mg: 4.3%, La: 0.01%, Cr: 0.1%, and unavoidable impurities Fe≤0.3%, Si≤0.15% , Al balance. Its die-casting process is:
[0042] a. Melting the alloy to obtain an aluminum alloy melt. Melting steps: (1) Baking, preheating the raw material at 250°C for 2 hours; (2) Melting, setting the melting temperature of the melting furnace to 800°C, when the furnace temperature rises to 300°C, add industrial pure aluminum until it melts, Stir evenly; heat up the melt to 760°C, add aluminum-lanthanum and aluminum-chromium intermediate alloys and stir evenly until the melt is clear; when the melt temperature drops to 720°C, add industrial pure magnesium, melt, and stir evenly until melted Clear; (3) Refining, when the temperature of the melt reaches 740°C, add powder spraying refining agent (Dingchen) for refining, continue for 10 ...
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Abstract
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