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Annealing process for aluminum foil of air conditioner heat radiator

An annealing process and heat sink technology, which is applied in the field of aluminum product processing, can solve the problems that the comprehensive performance of the product cannot meet the requirements of air-conditioning radiator fins, etc., and achieve the effect of facilitating subsequent processing and deformation, excellent comprehensive performance, and fine structure

Inactive Publication Date: 2009-01-07
SHANGHAI DATUN ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the comprehensive performance of products produced by the original annealing process can no longer meet the requirements of air-conditioning radiator fins

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] Three rolls of air-conditioning foil of 0.095×1245×C produced according to the prescribed casting-rolling and cold-rolling process are annealed in a 20-ton annealing furnace in the foil workshop at a furnace temperature of 290°C and a total annealing time of 22 hours. After annealing, the product is tested The tensile strength is 135-140Mpa, the elongation is above 20%, and the cup convex value (Vaseline for lubricant) is about 6.0mm. After coating, the customer adopts a high-speed punching machine at a speed of 320 times / min, and no radiator fins appear. Punching edge cracking phenomenon.

Embodiment 2

[0010] Three rolls of air-conditioning foil of 0.105×936×C produced according to the prescribed casting and cold rolling process are annealed in a 20-ton annealing furnace in the plate workshop at a furnace temperature of 280°C and a total annealing time of 24 hours. After annealing, the product is tested for resistance The tensile strength is 130-133Mpa, the elongation is above 18%, and the cup convex value (lubricant oil) is about 5.0mm. After coating, the customer adopts a high-speed punching machine at a speed of 340 times / min, and there is no radiator fin punching. Cracking at the edge of the hole.

Embodiment 3

[0012] Three rolls of air-conditioning foil of 0.098×780×C produced according to the prescribed casting and cold rolling process are annealed in a 20-ton annealing furnace in the plate workshop at a furnace temperature of 280°C and a total annealing time of 24 hours. After annealing, the product is tested for resistance The tensile strength is 135-140Mpa, the elongation is above 18%, and the cup convex value (lubricant oil) is about 5.0mm. After coating, the customer uses a high-speed punching machine at a speed of 310 times / min, and there is no radiator fin punching. Cracking at the edge of the hole.

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Abstract

The invention discloses an annealing technique for an aluminum foil of an air conditioner radiator which belongs to the processing field of an aluminum product. A production mode for controlling the air of a furnace is adopted in an annealing furnace; the temperature of the air of the furnace is directly set to be 280 to 290 DEG C; the total annealing time is 20 to 26 hours; according to the size of the load of the furnace, a material column is fed on a frame without a thermal couple and can be directly discharged and cooled after the annealing is finished. The annealing technique of the invention has the beneficial effects that: the annealing technique only controls the temperature of the air of the furnace; the material column does not need a thermal couple; the operation is simple and convenient and the generating of waste material is avoided; the setting of the temperature and the time not only is beneficial to improving the production efficiency, but also leads the tissue of an aluminum foil product to be exquisite and leads the comprehensive performances to be excellent, is beneficial to subsequent processing and deformation in particular; the annealing technique of the invention reduces the production cost, can realize to punch the fin rays of the air conditioner at a high speed without cracking and meet the demands of a top customer.

Description

technical field [0001] The invention relates to an annealing process for aluminum foil, specifically an annealing process suitable for producing aluminum foil for air-conditioning radiators, and belongs to the field of aluminum product processing. Background technique [0002] With the development of modern market economy, the fierce competition in the air conditioner market and the narrowing of profit margins are becoming more and more obvious. Reducing the cost of air conditioner fin aluminum foil and improving the forming efficiency are the focus of air conditioner manufacturers. Therefore, research and development of thin and high-performance air-conditioning foil products is the main trend of air-conditioning foil technology progress. In order to meet the market's requirements for the performance of air-conditioning aluminum foil, it is necessary to continuously improve the production process, especially the composition ratio of the blank and the annealing process of th...

Claims

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Application Information

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IPC IPC(8): C22F1/04
Inventor 徐静霞曾凡炯雷银娥
Owner SHANGHAI DATUN ENERGY
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