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Aluminium alloy for household appliance handle and purification method of melt of aluminium alloy

An aluminum alloy melt and aluminum alloy technology, applied in the field of aluminum alloy processing, can solve the problems of shortage of stainless steel or copper components, high production cost, insufficient strength, etc., and achieve the effects of good mechanical properties, strong metal feeling and smooth surface

Active Publication Date: 2014-12-24
ALNAN ALUMINIUM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The handles of traditional refrigerators, freezers, microwave ovens and other home appliances are mainly pure plastic components, stainless steel or copper components, aluminum alloy and plastic composite components, etc. The pure plastic components are not strong enough, easy to age, and easy to deform at high temperatures; stainless steel or copper components Component materials are in short supply and production costs are high; aluminum alloy and plastic composite components need to be connected or the strength of the adhesive should be good to ensure the service life

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Percentage by weight: Mg: 1.0%, Si: 0.16%, La+Ce: 0.1%, Fe﹤0.25%, Cr: ≤0.02%, Mn: ≤0.02%, Zn≤0.03%, Cu≤0.02%, others The single content of impurity elements is ≤0.02%, the total content of other impurity elements is ≤0.15%, and the balance is Al. Do the batching, and carry out smelting and purification according to the following steps:

[0022] (1) Smelting: Aluminum ingots and intermediate alloy elements with a purity of 99.70% and above are weighed according to the above ratio, and then put into a melting furnace for melting, using regenerative nozzle aluminum melting furnaces with good thermal efficiency and airtightness. For smelting, inflate and stir during the smelting process to speed up the smelting speed, and put 0.1% of the total amount of aluminum alloy into the furnace evenly into the slagging agent, and after the temperature of the molten aluminum reaches 690-730°C, carry out the slag removal operation on the slag inclusions of the molten aluminum , until t...

Embodiment 2

[0029] Percent by weight: Mg: 1.08%, Si: 0.18%, La+Ce: 0.2%, Fe﹤0.25%, Cr: ≤0.02%, Mn: ≤0.02%, Zn≤0.03%, Cu≤0.02%, others The single content of impurity elements is ≤0.02%, the total content of other impurity elements is ≤0.15%, and the balance is Al. Do the batching, and carry out smelting and purification according to the following steps:

[0030] (1) Melting: Aluminum ingots and intermediate alloy elements with a purity of 99.70% and above are weighed according to the above ratio, and then put into a melting furnace for melting, using regenerative nozzle aluminum melting furnaces with good thermal efficiency and airtightness. For smelting, inflate and stir during the smelting process to accelerate the smelting speed, put slag-removing agent evenly into the furnace according to 0.15% of the total aluminum alloy, after the temperature of the molten aluminum reaches 690-730°C, perform slag removal operation on the slag inclusion of the molten aluminum , until there is no conti...

Embodiment 3

[0037] Percentage by weight: Mg: 1.1%, Si: 0.20%, La+Ce: 0.35%, Fe﹤0.25%, Cr: ≤0.02%, Mn: ≤0.02%, Zn≤0.03%, Cu≤0.02%, others The single content of impurity elements is ≤0.02%, the total content of other impurity elements is ≤0.15%, and the balance is Al. Do the batching, and carry out smelting and purification according to the following steps:

[0038] (1) Smelting: Aluminum ingots and intermediate alloy elements with a purity of 99.70% and above are weighed according to the above ratio, and then put into a melting furnace for melting, using regenerative nozzle aluminum melting furnaces with good thermal efficiency and airtightness. For smelting, inflate and stir during the smelting process to speed up the smelting speed, and put 0.18% of the total aluminum alloy into the furnace evenly to put slagging agent into the furnace. After the temperature of the molten aluminum reaches 690-730°C, carry out the slag removal operation on the slag inclusion of the molten aluminum , until...

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Abstract

The invention relates to an aluminium alloy for a household appliance handle and a purification method of melt of the aluminium alloy. The aluminium alloy is characterized by comprising the following chemical components in percentage by weight: 1.0%-1.12% of Mg, 0.16%-0.22% of Si, 0.1%-0.5% of La+Ce, less than 0.25% of Fe, no more than 0.02% of Cr, no more than 0.02% of Mn, no more than 0.03% of Zn, no more than 0.02% of Cu, no more than 0.02% of each of other impurity elements, and the balance of Al, wherein the total content of the other impurity elements is not more than 0.15%. By adding rare earth elements La and Ce, the aluminium alloy for the household appliance handle is capable of improving the surface quality of an aluminium alloy section and improving the extrusion speed of the aluminium alloy. The household appliance handle produced by adopting the aluminium alloy for the household appliance handle disclosed by the invention has the advantages of being smooth in surface, strong in metal feel, environment-friendly and durable, collision-resistant, corrosion-resistant, high in strength, good in mechanical property and the like.

Description

technical field [0001] The invention relates to the field of aluminum alloy processing, in particular to an aluminum alloy used for handles of household appliances such as refrigerators, freezers, and microwave ovens, and a method for purifying aluminum alloys and melts thereof. Background technique [0002] The handles of traditional refrigerators, freezers, microwave ovens and other home appliances are mainly pure plastic components, stainless steel or copper components, aluminum alloy and plastic composite components, etc. The pure plastic components are not strong enough, easy to age, and easy to deform at high temperatures; stainless steel or copper components Component materials are in short supply and the production cost is high; aluminum alloy and plastic composite components need to be connected or the strength of the adhesive is good to ensure the service life. [0003] Aluminum and aluminum alloy materials have excellent properties such as low density, high specif...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/08C22C1/06C22C1/02
Inventor 周雄多何小梅雷素萍李永弟
Owner ALNAN ALUMINIUM CO LTD
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