Preparation method of diatomite-doped refining agent used for smelting aluminium alloy sections
A technology of aluminum alloy profiles and diatomite, which is applied in the field of preparation of refining agents for smelting aluminum alloy profiles, can solve the problems of poor electrical conductivity, thermal conductivity and corrosion resistance of finished products, affecting the performance of alloy castings, and high proportion of oxide impurities , to achieve the effect of improving quality and processing performance, increasing yield, and improving mechanical properties
Active Publication Date: 2015-03-04
柳州增程材料科技有限公司
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Problems solved by technology
[0002] During the smelting process of aluminum alloy, covering agent, slag removing agent, slag cleaning agent, refining agent, etc. are needed, and the refining agent is added when the temperature of aluminum alloy reaches about 720 degrees. The refining agent used in the traditional aluminum alloy manufacturing process will lead to poor electrical conductivity, thermal conductivity, and corrosion resistance of the finished product, and the porosity in the produced alloy castings is relatively high, and many pores will be generated on the surface of the castings, oxidizing The proportion of impurities is also high, which affects the performance of alloy castings
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Embodiment Construction
[0013] The present invention will be further described below in conjunction with embodiment, but not limited to following embodiment.
[0014] A method for preparing a refining agent for smelting aluminum alloy profiles doped with diatomite, comprising the following steps: it is prepared from the following raw materials by weight (kg): potassium chloride 8, plant ash 5, diatomite 2, quartz Sand nano powder 3, bamboo charcoal powder 4, calcium fluoride 5, sodium nitrate 4, graphite powder 6, sodium fluorosilicate 9, sodium sulfate 4, aluminum chloride 7, potassium carbonate 4, attapulgite 9, NaBF 4 5-8, sodium chloride 4, potassium feldspar powder 7, Na 2 TiF 6 9. NaF 7, mix the plant ash and diatomaceous earth in the above parts by weight and add it to (0.8-1.2) g / L potassium permanganate solution for soaking to remove impurities, then filter and wash to neutral, and the temperature is 400-450 ℃ Calcined at low temperature for 1 hour, then ground into powder, finally added ...
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The invention discloses a preparation method of a diatomite-doped refining agent used for smelting aluminium alloy sections, and the preparation method comprises the following operation steps (described in the specification). The diatomite-doped refining agent is prepared from the following raw materials in parts by weight: 7-9 parts of potassium chloride, 4-6 parts of plant ash, 2-3 parts of diatomite, 2-4 parts of quartz sand nano powder, 3-5 parts of bamboo charcoal powder, 4-6 parts of calcium fluoride, 3-5 parts of sodium nitrate, 5-8 parts of graphite powder, 8-10 parts of sodium fluosilicate, 3-5 parts of sodium sulphate, 5-8 parts of aluminium chloride, 3-5 parts of potassium carbonate, 8-10 parts of attapulgite, 5-8 parts of NaBF4, 3-5 parts of sodium chloride, 5-8 parts of potassium feldspar powder, 8-10 parts of Na2TiF6 and 5-8 parts of NaF. By virtue of treatment by adopting the refining agent disclosed by the invention, high-quality aluminium alloy melt is obtained, and the yield is obviously increased when the aluminium alloy melt is used for foundry production; and especially the porosity of a casting is reduced by 1-2 degrees, the porosity is effectively controlled, no pore is produced on the surface of the casting, mixed oxide is also obviously reduced, and mixed oxide is about level 2.
Description
technical field [0001] The invention relates to the field of smelting aluminum alloy profiles, and belongs to a method for preparing a refining agent for smelting aluminum alloy profiles. Background technique [0002] During the smelting process of aluminum alloy, it is necessary to use covering agent, slag removing agent, slag cleaning agent, refining agent, etc. The refining agent is added when the temperature of aluminum alloy reaches about 720 degrees. The refining agent used in the traditional aluminum alloy manufacturing process will cause the finished product The electrical conductivity, thermal conductivity, and corrosion resistance are not strong, and the porosity in the produced alloy castings is relatively high. There are many pores on the surface of the castings, and the proportion of oxide impurities is also high, which affects the performance of the alloy castings. Contents of the invention [0003] The purpose of the present invention is to provide a method ...
Claims
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IPC IPC(8): C22C1/06C22C21/00
Inventor 陈学松黄德斌
Owner 柳州增程材料科技有限公司