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Annealing method of medium, high voltage electronic aluminium foil product in vaccum oven

An electronic aluminum foil and vacuum furnace technology, which is applied in the field of processing and rolling of finished metal foils, can solve the problems of long production cycle, many processes of finished annealing, increase production cost, etc., and achieve the effect of reducing production cost and shortening production cycle.

Inactive Publication Date: 2004-10-06
XINJIANG JOINWORLD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that there are many annealing processes for finished products, the production cycle is long, and the production cost is increased.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] The temperature of the furnace is raised to 250°C, and the temperature is kept for 10 hours → the temperature of the furnace is raised to 500°C, and the temperature is kept for 5 hours.

[0009] The above-mentioned two-stage heating rate is 2°C / min.

[0010] After annealing, the finished foil is measured by D5000 X-ray diffractometer, and the occupancy rate of {100} plane texture is 95.0%, and the specific volume reaches 1.03μF / cm at 375V working voltage 2 .

Embodiment 2

[0012] The temperature of the furnace is raised to 280°C, and the temperature is maintained for 12.5 hours → the temperature of the furnace is increased to 510°C, and the temperature is maintained for 7.5 hours.

[0013] The above-mentioned two-stage heating rate is 5° C. / min.

[0014] After annealing, the finished foil is measured by D5000 X-ray diffractometer, and the occupancy rate of {100} plane texture is 95.4%, and the specific volume reaches 1.03μF / cm at 375V working voltage 2 .

Embodiment 3

[0016] The temperature of the furnace is raised to 300°C and kept for 15 hours → the temperature of the furnace is raised to 520°C and kept for 10 hours.

[0017] The above-mentioned two-stage heating rate is 10° C. / min.

[0018] After annealing, the finished foil is measured by D5000 X-ray diffractometer, and the occupancy rate of {100} plane texture is 96.3%, and the specific volume reaches 1.05μF / cm at 375V working voltage 2 , the finished foil has the best performance.

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PUM

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Abstract

A process for annealing the finished aluminium foil used for medium-or high-voltage electronic products in the vacuum furnace includes heating to 250-320 deg.c, holding the temp for 10-18 hr, heating to 500-550 deg.C and holding the temp for 5-15 hr. Their temp raising speed is 1-12 deg.C / min. Its advantages are simple process, short period, low cost and high effect.

Description

Technical field [0001] The invention relates to a method for annealing medium and high-voltage electronic aluminum foil products in a vacuum furnace, and belongs to the field of rolling and processing of metal product foils. Background technique [0002] In CN1341765A, a production process of aluminum foil for high-voltage anode of electrolytic capacitor is disclosed. The annealing process and parameters of the finished product are as follows: the first stage: the temperature is raised from room temperature to 220-260°C, and the holding time is 120-300 minutes; the second stage : Heating up to 300-350°C, the holding time is 120-300 minutes; the third stage: heating up to 520-560°C, holding time is 900-1500 minutes, the heating rate of the above three stages is controlled at 1-3°C / min . The disadvantage is that there are many annealing processes for finished products, and the production cycle is long, which increases the production cost. Contents of the invention [0003]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22F1/04
Inventor 左宏
Owner XINJIANG JOINWORLD CO LTD