Method for removing iron contained in silicon-aluminum alloy
A technology of silicon-aluminum alloy and iron content, applied in the field of iron removal in silicon-aluminum alloy, can solve problems such as unsatisfactory effect, and achieve the effects of improved performance, increased elongation, and increased tensile strength
Inactive Publication Date: 2015-03-04
HENGYANG FENGSHUN AXLE CO LTD
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Problems solved by technology
At present, in order to remove iron in silicon-aluminum alloy, the treatment method of adding manganese element in the smelting process of silicon-aluminum alloy is usually adopted, but the effect is not ideal
Method used
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Experimental program
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Effect test
Embodiment Construction
[0006] First melt and dehydrate the manganese chloride, then cool and crystallize, then select the dehydrated and crystallized manganese chloride according to the weight ratio of 1.8 times the iron content in the smelted silicon-aluminum alloy, put it in a closed bell jar, and press it into the smelting silicon-aluminum alloy In the molten alloy, stir slowly until no bubbles come out and stop heating.
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The invention relates to a method for removing iron contained in a silicon-aluminum alloy. The method is characterized by comprising the following steps of: firstly carrying out melting dehydration on manganese chloride, and then carrying out cooling crystallization; then selecting the dehydrated and crystallized manganese chloride according to the weight ratio of 1.8-2 times of the ion content of a smelted silicon-aluminum alloy, placing into a closed bell jar, pressing into silicon-aluminum alloy melting liquid during smelting, slowly stirring, and heating till no bubble is formed. The treated silicon-aluminum alloy is obviously improved in property, enhanced in tensile strength by 5%-15%, enhanced in elongation percentage by more than 10% and convenient to operate.
Description
technical field [0001] The invention relates to a metal smelting treatment method, in particular to a method for removing iron from silicon-aluminum alloys. Background technique [0002] The silicon-aluminum alloy contains iron, which will reduce its strength and elongation. At present, in order to remove iron in silicon-aluminum alloy, the treatment method of adding manganese element during the smelting process of silicon-aluminum alloy is usually adopted, but the effect is not ideal. Contents of the invention [0003] The purpose of the present invention is to provide a method for removing iron in silicon-aluminum alloys with good removal effect, obvious improvement of product strength and elongation, and convenient operation. [0004] In order to achieve the purpose of the above invention, the specific removal method used in the present invention is: first melt and dehydrate the manganese chloride, then cool and crystallize, and then select the dehydrated and cryst...
Claims
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Patent Timeline
Login to View More IPC IPC(8): C22C1/06C22C21/02
Inventor 刘登发
Owner HENGYANG FENGSHUN AXLE CO LTD
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