Ultrathin air-conditioning aluminum foil and manufacturing method thereof

A manufacturing method and technology of aluminum foil, applied in the direction of manufacturing tools, metal rolling, metal rolling, etc., can solve the problem of increasing the production difficulty and production cost of air-conditioning foil manufacturers, reducing the anti-reverse ability of heat dissipation fins, and increasing the number of rolling passes. and other problems, to achieve significant technical and economic effects, good isotropy, and improve the effect of casting and rolling structure.

Active Publication Date: 2013-11-27
RUYUAN DONGYANG UACJ PRECISION FOIL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, reducing the thickness will lead to a decrease in the anti-reversal ability of the cooling fins, which requires increasing the strength to make up for it. However, the strength and elongation are usually always a pair of contradictions: increasing the strength will decrease the elongation, and the elongation will decrease. The lower the length ratio, the higher the fragmentation rate during the fin punching process
Therefore, how to achieve a better overall performance of the finned air-conditioning foil, that is, a well-balanced strength, elongation, and cupping value, and to maintain a good isotropy of the above-mentioned mechanical properties, has become a technical problem faced by various companies; On the one hand, reducing the thickness of finned air-conditioning foil usually requires increasing the number of rolling passes, so it will also sharply increase the production difficulty and production cost of air-conditioning foil manufacturers

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033]Composition by weight as follows: Al: 99.40%, Fe: 0.28%, Si: 0.08%, Mn: 0.17%, Cu: 0.0005%, Mg: 0.0005%, Ti: 0.025%, V: 0.010%, others are unavoidable impurities. The preparation process is as follows: (1) put the raw materials in the said parts by weight into a smelting furnace, and carry out smelting and refining respectively at temperatures of 700-760°C and 735-750°C. (2) At a temperature of 690-700°C, add Al-5Ti-1B alloy wire at the inlet of the degassing box, and use a casting-rolling machine to continuously cast and roll molten aluminum into a thickness of 6.2mm and a width of 1300mm at a speed of 1100-1200mm / min Rolled cast-rolled plate. (3) Rolling with a large reduction in each pass, the plate thickness decreases and the process in the 5 passes of cold rolling is: 6.2-2.85-1.45-0.82-the width after trimming on both sides is 1260mm-0.42-0.23 to obtain a coiled cold rolling The aluminum foil is then foil-rolled for 2 passes, in which the thickness of the plate d...

Embodiment 2

[0035] Composition by weight ratio as follows: Al: 99.20%, Fe: 0.36%, Si: 0.13%, Mn: 0.23%, Cu: 0.005%, Mg: 0.005%, Ti: 0.04%, V: 0.015%, others are unavoidable impurities. Its preparation method is as follows: (1) put the raw materials in said parts by weight into a smelting furnace, and carry out smelting and refining at temperatures of 700-760° C. and 735-750° C. respectively. (2) At a temperature of 690-700°C, add Al-5Ti-1B alloy wire at the inlet of the degassing box, and use a casting-rolling machine to continuously cast and roll molten aluminum into a thickness of 6.2mm and a width of 1720mm at a speed of 1100-1200mm / min Rolled cast-rolled plate. (3) Rolling with a large reduction in each pass, the plate thickness decreases and the process in the 5 passes of cold rolling is: 6.2-2.85-1.45-0.82-the width after trimming on both sides is 1675mm-0.42-0.23 to obtain a coiled cold rolling The aluminum foil is then foil-rolled for 2 passes, in which the thickness of the plat...

Embodiment 3

[0037] Composition by weight as follows: Al: 99.35%, Fe: 0.32%, Si: 0.11%, Mn: 0.20%, Cu: 0.004%, Mg: 0.001%, Ti: 0.03%, V: 0.013%, others unavoidable impurities. Its preparation method is as follows: (1) put the raw materials in said parts by weight into a smelting furnace, and carry out smelting and refining respectively at a temperature of 700-760° C. and 735-750° C. to form aluminum liquid. (2) At a temperature of 690-700°C, add Al-5Ti-1B alloy wire at the inlet of the degassing box, and use a casting-rolling machine to continuously cast and roll molten aluminum into a thickness of 6.2mm and a width of 1575mm at a speed of 1100-1200mm / min Rolled cast-rolled plate. (3) Rolling with a large reduction in each pass, the plate thickness decreases and the process in the 5 passes of cold rolling is: 6.2-2.85-1.45-0.82-the width after trimming on both sides is 1535mm-0.42-0.23 to obtain a coiled cold rolling The aluminum foil is then foil-rolled for 2 passes, in which the thickn...

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Abstract

The invention relates to an ultrathin air-conditioning aluminum foil and a manufacturing method thereof. The air-conditioning aluminum foil comprises the following components in percentage by weight: 99.10 to 99.50 percent of Al, 0.26 to 0.38 percent of Fe, 0.06 to 0.15 percent of Si, 0.15 to 0.25 percent of Mn, 0.008 to 0.017 percent of V, 0.023 to 0.043 percent of Ti, less than or equal to 0.01 percent of Cu, less than or equal to 0.01 percent of Mg, and the balance of inevitable impurities. Regarding the problems in the traditional technology, a fin air-conditioning foil with balanced and excellent strength, elongation and cupping value, excellent isotropy of related mechanical performance, namely excellent comprehensive performance, can be produced by the ultrathin air-conditioning aluminum foil and the manufacturing method thereof with few passes and lower cost.

Description

technical field [0001] The invention relates to an aluminum foil and a preparation method thereof, more specifically, the invention relates to an air conditioner aluminum foil and a preparation method thereof. Background technique [0002] As air conditioners are increasingly widely used in various fields of industry, commerce, military and civilian use, the competition among refrigerator manufacturers in technology and market is also deepening, further realizing the lightweight and miniaturization of air conditioners, and effectively reducing production costs. Become an important aspect and effective means of enterprise competition. For this reason, air conditioner manufacturers usually adopt the method of reducing the thickness of air conditioner foil to achieve the competitive effect of killing multiple birds with one stone. [0003] However, reducing the thickness will lead to a decrease in the anti-reversal ability of the cooling fins, which requires increasing the str...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/00C22F1/04C21D9/54B21B1/46B21B1/40B21B37/00
Inventor 池国明朱灵斐
Owner RUYUAN DONGYANG UACJ PRECISION FOIL CO LTD
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