Refining method of aluminum-silicon cast aluminum alloy
A technology for casting aluminum alloys and aluminum-silicon systems, applied in the field of metal materials, can solve the problems of reducing the cleanliness of aluminum alloy ingots, achieve the effects of reducing wettability, strengthening refining effects, and improving quality
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[0021] Example 1
[0022] A refining method for aluminum-silicon cast aluminum alloy, including the following steps:
[0023] A. Ingredients: The mass percentage ratio of each element in the raw material of aluminum alloy ingot is as follows:
[0024]
[0025]
[0026] Weigh the various raw material components mentioned above according to the mass percentage;
[0027] B. Melting: Put all the raw material components weighed in step A into the smelting furnace for smelting. The smelting process is smelting, stirring, slagging, sampling and testing, standing insulation, refining, stirring, slagging, online Refining, degassing, filtering, casting;
[0028] C. Deslagging and degassing: Weigh a certain mass of dried alum KAl(SO 4 ) 2 ·12H 2 O, the alum dried in the oven and 99.5% nitrogen purity are sent into the aluminum liquid through the spray gun, where the alum addition rate is 10% kg / tAl, the nitrogen is injected into the aluminum liquid through the graphite rotor, and the nitrogen is ...
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[0031] Example 2
[0032] The difference between embodiment 2 and embodiment 1 lies in that the mass percentage ratio of each element in the raw material of the aluminum alloy ingot in step A is as follows:
[0033] element
Example Embodiment
[0034] Example 3
[0035] The difference between Example 3 and Example 1 lies in that the mass percentage ratio of each element in the raw material of the aluminum alloy ingot in step A is as follows:
[0036] element
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