Method for treating fused aluminium alloy through flux spraying method

An aluminum alloy and flux method technology, which is applied in the field of smelting aluminum alloy profiles, can solve the problems of aluminum alloy melt purification with less removal, increased energy of inclusion particles, and reduced filtration efficiency, so as to improve the effect of slag removal and purification. Good effect and improved filtration efficiency

Inactive Publication Date: 2019-03-01
徐州一宁铝业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the continuous use of the porous ceramic tube, more and more impurity particles are deposited, intercepted and adsorbed in the filter channel. Small, the liquid metal flow rate increases, the energy applied to the inclusion particles increases, and as a result, the solid particles that have been deposited and adsorbed are easily washed into the liquid metal again, reducing the filtration efficiency, and the purification effect and reliability need to be improved.
Especially for micron-sized small-sized inclusions, the removal efficiency is lower. Therefore, the removal of small-sized non-metallic inclusions is the focus and difficulty of aluminum alloy melt purification. Therefore, it is necessary to find a more effective separation of inclusions craft

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A method for treating molten aluminum alloys by spraying flux, wherein the weight percentages of the components of the aluminum alloys are: Si13, Mg 0.5, Mn 0.05, Cu 0.1, Cr 0.10-0.20, Zn 0.3, Fe 0.1, rare earth RE 0.1, The remainder is aluminum.

[0021] The method for treating molten aluminum alloy by spraying flux method comprises the following steps,

[0022] S1: Melting of aluminum alloy, the above-mentioned aluminum alloy components are mixed according to the proportion; put in the melting furnace for melting, when the temperature rises to 740°C, stir evenly, and then use the slag removal device to obtain the aluminum alloy liquid;

[0023] S2: Spraying treatment of aluminum alloy liquid. The aluminum alloy liquid prepared in step S1 is poured into the diversion funnel of spraying under the condition of atmosphere protection. While the molten aluminum alloy is poured into the spraying equipment through diversion, the spraying equipment The spray gun in the spray ...

Embodiment 2

[0027] A method for treating molten aluminum alloy by spraying flux method, the weight percentage of each component of the aluminum alloy is: Si15, Mg 2, Mn 0.1, Cu 0.3, Cr 0.15, Zn 0.1, Fe 0.2, rare earth RE 0.1, and other components for aluminum;

[0028] The method for treating molten aluminum alloy by spraying flux method comprises the following steps,

[0029] S1: Melting of aluminum alloy, the above-mentioned aluminum alloy components are mixed according to the proportion; put in the melting furnace for melting, when the temperature rises to 750°C, stir evenly, and then use the slag removal device to obtain the aluminum alloy liquid;

[0030] S2: Spraying treatment of aluminum alloy liquid. The aluminum alloy liquid prepared in step S1 is poured into the diversion funnel of spraying under the condition of atmosphere protection. While the molten aluminum alloy is poured into the spraying equipment through diversion, the spraying equipment The spray gun in the spray gun u...

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Abstract

The invention relates to a method for treating fused aluminium alloy through a flux spraying method. The aluminium alloy is prepared from, by weight, 13-45 parts of Si, 0.5-5 parts of Mg, 0.05-0.20 part of Mn, 0.1-0.4 part of Cu, 0.10-0.20 part of Cr, 0.1-0.3 part of Zn, 0.1-0.6 part of Fe, 0.1-1 part of rare earth (RE) and the balance aluminium; in the step of treating the fused aluminium alloy through the flux spraying method, a spray gun is used, inert gas is used as a carrier, powder flux is sprayed in the direction vertical to the flowing direction of aluminium alloy liquid, even dispersion of the flux in fused aluminium is achieved, and the residue removal effect is obviously improved; meanwhile, the application amount of flux powder can be lowered, and the efficient method of treating the fused aluminium alloy through energy saving is established.

Description

technical field [0001] The invention relates to the field of smelting aluminum alloy profiles, in particular to a method for processing molten aluminum alloys by spraying flux. Background technique [0002] During the production process of aluminum alloy, some non-metallic inclusions will be brought in, and non-metallic inclusions will also be produced during the remelting process. These non-metallic inclusions are mainly oxidized inclusions, some of which are brought in by the charge, and some of which are oxidized by liquid metal before pouring. Large particle inclusions will make the casting structure discontinuous, reduce the air tightness of the workpiece, become the source of corrosion, significantly reduce the strength and plasticity of the material, and often become the source of cracks in the parts. In addition, the distribution of fine inclusions in the aluminum melt will increase the viscosity of the aluminum melt, thereby reducing the feeding ability of the alum...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/06C22C1/02C22C21/02
CPCC22C1/026C22C1/06C22C21/02
Inventor 张翠玲
Owner 徐州一宁铝业科技有限公司
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