Unlock instant, AI-driven research and patent intelligence for your innovation.

Iron remover

A technology of iron remover and weight percentage, applied in the field of iron removal of secondary aluminum alloys, can solve the problems of blank iron remover, etc., and achieve the effects of convenient operation, low melting point and good refining effect.

Inactive Publication Date: 2011-12-28
WUJIANG SHI FINE WORKMANSHIP & ALUMINUM WORD MANUFACTORY
View PDF4 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In response to the problem of excessive impurity elements in secondary aluminum, magnesium removers have appeared recently, but iron removers are still blank

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The iron remover is characterized by 15% sodium chloride, 25% zinc chloride, 20% borax by weight percentage, and the balance is aluminum alloy iron remover WH-Fe2.

[0025] A preparation method for removing iron from secondary aluminum alloys, characterized in that:

[0026] The first step: put the recycled aluminum alloy into the crucible, heat it to 680-720°C, and keep the temperature until it melts;

[0027] Step 2: Preheat 2.4-3.6%wt of recycled aluminum alloy iron remover at 150°C for 2 hours; after the alloy is melted, sprinkle the preheated iron remover described in claim 1 evenly on the metal liquid surface Cover the furnace lid and keep it for 5~10 minutes until the iron remover is completely melted and there is no hard shell, and stir evenly;

[0028] Step 3: After melting, pour it into the crucible, lower it to 600°C, keep it warm for 2 hours to let it settle, and finally cool it in the furnace;

[0029] Step 4: quench in water for 10 minutes, and filter. ...

Embodiment 2

[0031] The iron remover is characterized in that by weight percentage, 20% sodium chloride, 30% zinc chloride, 30% borax, and the balance is aluminum alloy iron remover WH-Fe2.

[0032] A preparation method for removing iron from secondary aluminum alloys, characterized in that:

[0033] The first step: put the recycled aluminum alloy into the crucible, heat it to 680-720°C, and keep the temperature until it melts;

[0034] Step 2: Preheat 2.4-3.6%wt of recycled aluminum alloy iron remover at 150°C for 2 hours; after the alloy is melted, sprinkle the preheated iron remover described in claim 1 evenly on the metal liquid surface Cover the furnace lid and keep it for 5~10 minutes until the iron remover is completely melted and there is no hard shell, and stir evenly;

[0035] Step 3: After melting, pour it into the crucible, lower it to 600°C, keep it warm for 2 hours to let it settle, and finally cool it in the furnace;

[0036] Step 4: quench in water for 10 minutes, and fil...

Embodiment 3

[0038] The iron remover is characterized by 17% sodium chloride, 28% zinc chloride, 26% borax, and the balance is aluminum alloy iron remover WH-Fe2 by weight percentage.

[0039] A preparation method for removing iron from secondary aluminum alloys, characterized in that:

[0040] The first step: put the recycled aluminum alloy into the crucible, heat it to 680-720°C, and keep the temperature until it melts;

[0041] Step 2: Preheat 2.4-3.6%wt of recycled aluminum alloy iron remover at 150°C for 2 hours; after the alloy is melted, sprinkle the preheated iron remover described in claim 1 evenly on the metal liquid surface Cover the furnace lid and keep it for 5~10 minutes until the iron remover is completely melted and there is no hard shell, and stir evenly;

[0042] Step 3: After melting, pour it into the crucible, lower it to 600°C, keep it warm for 2 hours to let it settle, and finally cool it in the furnace;

[0043] Step 4: quench in water for 10 minutes, and filter. ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to the technical field of iron removal from secondary aluminum alloys. The iron remover is characterized in that by weight percentage, 15-20% sodium chloride, 25-30% zinc chloride, 20-30% borax, and the balance is aluminum alloy iron remover WH-Fe2. The iron removal principle of the iron remover of the present invention is that boron can convert the harmful impurities Ti, V, Cr, and Zr in pure aluminum that affect the conductivity from a solid solution state to a precipitated state that is less harmful to the conductivity. AlB2 / AlB12 intermediate alloy is added to the liquid, and boron reacts rapidly with the above-mentioned harmful impurities to form TiB2, CrB2, VB2, ZrB2 precipitates, which will settle to the bottom of the crucible because their own density is much higher than that of aluminum liquid. Easy to operate.

Description

[0001] [0002] Technical field: the invention belongs to the technical field of iron removal from recycled aluminum alloys. [0003] Background technique: [0004] The comprehensive energy consumption of producing secondary aluminum is only 5% of that of electrolytic aluminum, CO 2 The emission can be reduced by more than 90%, and the energy saving, emission reduction and environmental benefits are very obvious. However, the salient features of recycled aluminum are its complex composition and high content of impurity elements, which largely limits the application of recycled aluminum alloys. Especially in the smelting process of waste miscellaneous aluminum, it is often encountered that alloy components or impurity elements exceed the standard, especially the problem of iron exceeding the standard. The removal of impurity element iron has become an international problem that plagues the development of the secondary aluminum industry. When the iron content exceeds the sta...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C22C1/06C22C21/00C22B21/06
Inventor 谢利荣
Owner WUJIANG SHI FINE WORKMANSHIP & ALUMINUM WORD MANUFACTORY