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Aluminium strip for capacitor shell

A technology for aluminum strips and capacitors, applied in capacitors, electrical components, furnace types, etc., can solve the problem that the requirements of the punching process cannot be guaranteed, and achieve moderate tensile strength, good comprehensive mechanical properties, and small ear rate. Effect

Active Publication Date: 2007-06-06
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

[0002] Aluminum is the main material for the shell of electrolytic capacitors. With the development of the electronics industry, the demand for electrolytic capacitors, the main electronic components, is also increasing. At present, the shells of capacitors at home and abroad are mainly made of 1060 alloy aluminum strips. The process plan Cast-rolling, cold-rolling, and finished product annealing are followed in sequence, and the temperature is 250-350°C. However, the aluminum strips for capacitor shells made of this brand of aluminum have blackened surfaces after punching, and the ear-making rate during processing and forming is generally between More than 3.5%, can not guarantee the shell punching process requirements

Method used

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Examples

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Effect test

Embodiment 1

[0006] Embodiment 1: The raw material adopts the aluminum material of 1100 alloy, and its weight composition is: Al: 99 parts; Fe: 0.53 parts; Si: 0.18 parts; Mn: 0.05 parts; Zn: 0.10 parts; After smelting, casting and rolling, one cold rolling to 6mm, the homogenized annealing temperature is 620°C for 15 hours, the second cold rolling is to 2.5mm, and the intermediate annealing temperature is 450°C for 10 hours; three times cold rolling to the thickness of the finished product is 0.35mm, the annealing temperature of the finished product is 240°C, lasts for 20 hours, and then it is made by cutting and packaging processes. In the prior art, the process and process parameters of capacitor aluminum strips produced with 1060 grade aluminum as raw materials are different.

Embodiment 2

[0007] Embodiment 2: The raw material adopts 1100 grades of aluminum, and its weight components are: Al: 99.09 parts; Fe: 0.49 parts; Si: 0.15 parts; Mn: 0.05 parts; Zn: 0.10 parts; After smelting, casting and rolling, one cold rolling to 5mm, the homogenized annealing temperature is 590°C for 15 hours, the second cold rolling is to 1.0mm, and the intermediate annealing temperature is 500°C for 10 hours; three times cold rolling to the thickness of the finished product is 0.26mm, the annealing temperature of the finished product is 210°C, lasts for 20 hours, and then it is made by cutting and packaging processes. In the prior art, the process and process parameters of capacitor aluminum strips produced with 1060 grade aluminum as raw materials are different.

Embodiment 3

[0008] Embodiment 3: The raw material adopts 1100 grades of aluminum, and its weight components are: Al: 99.02 parts; Fe: 0.51 parts; Si: 0.17 parts; Mn: 0.05 parts; Zn: 0.10 parts; After smelting, casting and rolling, one cold rolling to 3mm, the homogenized annealing temperature is 550°C for 15 hours, the second cold rolling is to 2.0mm, and the intermediate annealing temperature is 550°C for 10 hours; three times cold rolling to the thickness of the finished product is 0.28mm, the annealing temperature of the finished product is 180°C, lasts for 20 hours, and then it is made by cutting and packaging processes. In the prior art, the process and process parameters of capacitor aluminum strips produced with 1060 grade aluminum as raw materials are different.

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Abstract

The aluminum strip for capacitor shell is produced through smelting, casting and rolling, the first cold rolling, homogeneous annealing at 550-620 deg.c, the secondary cold rolling, the middle annealing at 450-550 deg.c, the third cold rolling, product annealing at 180-240 deg.c and other technological steps. The material alloy contains Al 99-99.09 weight portions, Fe 0.49-0.53 weight portions, Si 0.15-0.18 weight portions, Mn 0.05 weight portions, Zn 0.10 weight portions, and Cu 0.12-0.15 weight portions. The aluminum strip has moderate tensile strength, high elongation, low earing rate and high comprehensive mechanical performance.

Description

Technical field [0001] The invention relates to an aluminum strip material for capacitor shells. Background technique [0002] Aluminum is the main material for the shell of electrolytic capacitors. With the development of the electronics industry, the demand for electrolytic capacitors, the main electronic components, is also increasing. At present, the shells of capacitors at home and abroad are mainly made of 1060 alloy aluminum strips. The process plan Cast-rolling, cold-rolling, and finished product annealing are followed in sequence, and the temperature is 250-350°C. However, the aluminum strips for capacitor shells made of this brand of aluminum have blackened surfaces after punching, and the ear-making rate during processing and forming is generally between More than 3.5%, can not guarantee the shell punching process requirements. Contents of the invention [0003] In order to overcome the deficiencies of the prior art, the invention provides an aluminum strip mat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P23/04C22C21/00C21D9/52H01G2/10
Inventor 刘倜刘文彬
Owner JIANGSU DINGSHENG NEW MATERIAL JOINT STOCK CO LTD
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