High-yield-ratio air-conditioner foil base material and preparation method thereof

A high yield ratio, air-conditioning foil technology, applied in the field of aluminum foil rolling manufacturing, can solve the problems of reducing the production cost and disadvantages of air-conditioning fins, and achieve the effects of improving the uniformity of the alloy structure, increasing production efficiency, and increasing the yield ratio

Active Publication Date: 2019-12-31
JIANGSU DINGSHENG NEW MATERIAL JOINT STOCK CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a high yield ratio air-conditioning foil base material and its preparation method to solve the problem that the air-conditioning aluminum foil in the prior art cannot have both good extensibility and yield ratio. Technical problems that are not conducive to reducing the production cost of air-conditioning fins and improving their production efficiency

Method used

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Examples

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preparation example Construction

[0022] Based on the composition of the above-mentioned air-conditioning foil base material, the specific embodiment of the present invention also provides a method for preparing a high-yield ratio air-conditioning foil base material. The method is a rolling control method under an alloy composition system, including the following steps:

[0023] (1) Smelting stage: During smelting, the raw materials are fully stirred evenly, the melting temperature is 730-750°C, and the furnace temperature is 735-750°C;

[0024] (2) Casting and rolling stage: during casting and rolling production, the temperature of the front box is 693-697°C, the hydrogen content in the melt is ≤0.12ml / 100gAl, the casting-rolling speed is 900-1000mm / min, and the casting-rolling area is 55-65mm. The thickness of the cast-rolled finished coil prepared is 6.2±0.3mm;

[0025] (3) Cold rolling stage: Roughly roll the cast-rolled finished coil to a thickness of 4.0mm, then perform intermediate homogenization anneal...

Embodiment 1

[0030] The embodiment of the present invention relates to a high yield ratio air conditioner foil substrate and a preparation method thereof. First, the composition and mass percentage of the air-conditioning foil substrate are controlled as follows: Si: 0.59%, Fe: 0.78%, Cu: 0.03%, Mn: 0.02%, Zn: 0.015%, Ti: 0.03%, and the balance is Al.

[0031] Based on the above-mentioned component control, the air-conditioning foil base material is prepared and obtained, and the method is as follows:

[0032] (1) Melting: The raw materials are fully stirred evenly, and the melting temperature is 745°C. During smelting, use a special refining agent to first refine at 730°C for 20 minutes, and then at 740°C for 20 minutes. After the composition is adjusted to meet the aforementioned component control requirements, the furnace is reversed. The temperature of the furnace is 750°C. The special refining agent is a compound of chloride salt, which is mainly sprayed into the molten aluminum for ...

Embodiment 2

[0038] The embodiment of the present invention relates to a high yield ratio air conditioner foil substrate and a preparation method thereof. First, firstly, the composition and mass percentage of air conditioner foil base material are controlled as follows: Si: 0.60%, Fe: 0.81%, Cu: 0.03%, Mn: 0.02%, Zn: 0.015%, Ti: 0.03%, and the balance is Al.

[0039] Based on the above component control, the air conditioner foil substrate was prepared, and the preparation method was exactly the same as that described in Example 1.

[0040] The air conditioner foil product prepared in this example has a tensile strength of 135mpa, a yield ratio of 97%, an elongation rate of 22%, and a cup convex value of 6.6mm. The performance of the aluminum foil is stable, and it is completely satisfactory in the trial of the air conditioner fin punching machine. Product requirements, stable punching process, no cracking, suitable for high-speed punching machines.

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Abstract

The invention discloses a high-yield-ratio air-conditioner foil base material and a preparation method thereof in the technical field of calendaring manufacturing for aluminum foils, and aims at solving the technical problem that an aluminum foil for an air conditioner is incapable of being high in both extensibility and yield ratio, and not beneficial to reducing the production cost for fins forthe air conditioner, and increasing the production efficiency for the fins in the prior art. The base material comprises the following components in percentage by mass: Al, 0.57%-0.63% of Si, 0.77%-0.83% of Fe, not greater than 0.05% of Cu, not greater than 0.01% of Mn, not greater than 0.03% of Zn and not greater than 0.04% of Ti. The method comprises the following step: a cold-rolling phase of carrying out rough rolling on a finished cast-rolled coil to reach a preset thickness, and then carrying out intermediate homogenization annealing treatment.

Description

technical field [0001] The invention relates to a high-yield-ratio air-conditioning foil base material and a preparation method thereof, and belongs to the technical field of aluminum foil calendering manufacturing. Background technique [0002] The competition in the air conditioner market is increasing day by day, and the profit margin is shrinking day by day. How to reduce the production cost and improve the production efficiency of air conditioner fins as the components of air conditioners has become the focus of attention of various air conditioner manufacturers. With the continuous improvement and optimization of air conditioner fin forming equipment and molds, the thinning of aluminum foil for air conditioners and the application of high-speed punching machines have become a necessary trend in the technological development of the air conditioner industry. In order to improve the stability, aluminum foil with better performance must be developed. [0003] At present, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/00C22C1/02C22F1/04
CPCC22C1/026C22C21/00C22F1/04
Inventor 李高林曾元吴宝剑黄寿志王昭浪
Owner JIANGSU DINGSHENG NEW MATERIAL JOINT STOCK CO LTD
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