An automotive aluminum casting connector
A connecting piece and aluminum casting technology, which is applied in the field of auto parts, can solve the problems of easy damage of rigid connection, poor compatibility, complicated installation, etc., and achieve the effect of saving usage, good effect and improving production efficiency
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Embodiment 1
[0037] S1: Preheat the melting furnace to 200°C;
[0038] S2: The raw material for the composition, in mass percentage: Si1%, Fe0.1%, Mn0.2%, Cu0.5%, Mg2%, Zn6%, Zr0.1%, Y0.1%, the balance It is aluminum. After the raw materials are mixed uniformly, they are added to the smelting furnace and heated to 680°C to be completely melted into molten aluminum, where the raw aluminum is added in 3 times;
[0039] S3: Add a mixture of sodium fluoride, sodium chloride, and potassium chloride with a mass ratio of 1.5:4:1 to the molten aluminum, the added amount of the mixture is 1.5% by mass, and 0.8% by mass is added for refining The refining agent is a mixture of 70% by mass of hexachloroethane, 10% of sodium fluorosilicate, and 20% of carnallite. After degassing and refining, let it stand for 5 minutes, and after removing the liquid residue, it is poured into aluminum Ingots, machining aluminum ingots to obtain semi-finished automotive aluminum casting connectors;
[0040] S4: Put the semi-...
Embodiment 2
[0042] S1: Preheat the melting furnace to 300°C;
[0043] S2: The raw material for the composition, in mass percentage: Si1.5%, Fe0.1%, Mn0.2%, Cu2%, Mg3.2%, Zn8%, Zr0.1%, Y0.1%, The balance is aluminum. After the raw materials are mixed uniformly, they are added to the melting furnace and heated to 680°C to be completely melted into molten aluminum, where the raw aluminum is added in 4 times;
[0044] S3: Add a mixture of sodium fluoride, sodium chloride, and potassium chloride with a mass ratio of 1.5:5:1 to the molten aluminum, the added amount of the mixture is 1.5% by mass, and 0.7% by mass is added for refining The refining agent is a mixture of 68% by mass of hexachloroethane, 18% of sodium fluorosilicate, and 16% of carnallite. After degassing and refining, let it stand for 10 minutes. After removing the liquid residue, it is poured into aluminum Ingots, machining aluminum ingots to obtain semi-finished automotive aluminum casting connectors;
[0045] S4: Put the semi-finis...
Embodiment 3
[0047] S1: Preheat the melting furnace to 300°C;
[0048] S2: The raw material for the composition, in mass percentage: Si1.3%, Fe0.1%, Mn0.3%, Cu1%, Mg2.8%, Zn7%, Zr0.14%, Y0.1%, The remainder is aluminum. After the raw materials are mixed uniformly, they are added to the melting furnace and heated to 680°C to be completely melted into molten aluminum. The raw aluminum is added in 5 times;
[0049] S3: Add a mixture of sodium fluoride, sodium chloride, and potassium chloride with a mass ratio of 2:4:1 to the molten aluminum, the added amount of the mixture is 2% by mass, and 0.6% by mass is added for refining The refining agent is a mixture of 69% by mass of hexachloroethane, 17% of sodium fluorosilicate, and 14% of carnallite. After degassing and refining, let it stand for 7 minutes, and after removing the liquid residue, it is poured into aluminum. Ingots, machining aluminum ingots to obtain semi-finished automotive aluminum casting connectors;
[0050] S4: Put the semi-finished...
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