Smelting-casting technique of 6010 aluminum alloy
An aluminum alloy ingot and process technology, applied in the field of aluminum alloy melting and casting, can solve the problems of high price, high production cost, inability to meet the requirements, and achieve the effects of optimizing the casting speed, avoiding casting cracks, and reducing the content of non-metallic slag inclusions.
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[0012] The present invention will be further described in detail below in conjunction with the examples.
[0013] (1) Ingredients: 99.7% pure aluminum ingots, electrolytic copper, zinc ingots, manganese agent, instant silicon, magnesium ingots and aluminum alloy wastes of the same brand are used as raw materials for ingredients. The proportion of the waste materials to the total raw materials is 30%- 50%; the mass fraction of each element after batching is as follows: Si: 0.8-1.2%, Fe: <0.5%, Cu: 0.15-0.6%, Mn: 0.2-0.8%, Mg: 0.6-1.0%, Zn: <0.25% , Ti: ≤0.1%, the balance is Al.
[0014] (2) Melting: During the melting process, the melting temperature is strictly controlled at 720~750°C. After the molten aluminum is completely melted, start the electromagnetic stirrer to stir for 30 minutes to ensure the composition and temperature uniformity of the alloy melt; Carry out pre-refining to reduce slag content, hydrogen content and alkali metal content in the melt.
[0015] (3) S...
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