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Low-voltage electronic aluminum foil for capacitor and preparation process thereof

An electronic aluminum foil and preparation process technology, applied in the direction of manufacturing tools, metal rolling, furnace types, etc., can solve the problems of short production cycle and shorten production cycle, and achieve the effect of less residue, elimination of uneven structure, and improvement of surface quality

Active Publication Date: 2021-08-10
广西正润新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] Aiming at the deficiencies in the prior art, the present invention provides a low-voltage electronic aluminum foil for capacitors and its preparation process. Through the production mode of casting and continuous air cushion furnace, the production cycle is shortened; the problem of uneven structure is improved by annealing in the air cushion furnace, In order to improve the performance and cubic texture, the hovering furnace improves the cleanliness of the aluminum foil through the integration of alkali cleaning, roller coating and other functions, and enhances the corrosion and porosity performance of the aluminum foil, and obtains capacitors with uniform grain size, good corrosion effect, high capacity and short production cycle Aluminum foil for low voltage electronics

Method used

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  • Low-voltage electronic aluminum foil for capacitor and preparation process thereof
  • Low-voltage electronic aluminum foil for capacitor and preparation process thereof
  • Low-voltage electronic aluminum foil for capacitor and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Preparation process of low voltage electron aluminum foil with a capacitor, including the following steps:

[0052] 1) Cast: The raw material of high-pure aluminum solution is smelted, insulated, refined and standing, using semi-continuous casting to produce flat ingots, casting temperature 710 ° C, rapid cooling to form flat ingots;

[0053] 2) Homogenization: The molded flat ingot obtained by the upper step is homogenized by annealing furnace, homogenizing temperature 590 ° C, homogenizing time 19 h, and homogenized after air cooling to room temperature;

[0054] 3) Hot rolling: The flat ingot after homogenization of the upper step is made of hot rolling treatment, the hot rolling temperature is 520 ° C, the final rolling temperature is 250 ° C, and the heat rolling thickness is 5.5 mm. Roll material;

[0055] 4) Cold rolling: The upper step is obtained by a hot rolled web for cold rolling treatment, and the cold rolling speed is 450 m / min to obtain a cold rolled coil h...

Embodiment 2

[0065] Preparation process of low voltage electron aluminum foil with a capacitor, including the following steps:

[0066] 1) Cast: High-pure aluminum-coated raw materials After smelting, holding, refining and standing, using semi-continuous casting production of flat ingots, casting temperature 685 ° C, rapid cooling of the formed flat ingot;

[0067] 2) Uniformity: The molded flat ingot obtained by the upper step is homogenized by an annealing furnace, the homogenization temperature is 550 ° C, the homogenization time is 15 h, and the homogeneration is holested to room temperature;

[0068] 3) Hot rolling: The flat ingot after homogenization of the upper step is made of hot rolling treatment, the hot rolling temperature is 500 ° C, the final rolling temperature is 300 ° C, resulting in a hot rolling with a hot rolling thickness of 5 mm. Coil;

[0069] 4) Cold rolling: The upper step is obtained by a hot rolled web for cold rolling treatment, and the cold rolling speed is 200 m / ...

Embodiment 3

[0079] Preparation process of low voltage electron aluminum foil with a capacitor, including the following steps:

[0080] 1) Casting: High-pure aluminum-coated raw materials After smelting, holding, refining, and standing, semi-continuous casting is used to produce flat ingots, casting temperature 720 ° C, rapidly cooling the formation flat ingot;

[0081] 2) Homogenization: The molded flat ingot obtained by the upper step is homogenized by an annealing furnace, the homogenization temperature is 600 ° C, the homogenization time is 25h, and the homogeneration is holested to room temperature;

[0082] 3) Hot rolling: The flat ingot after homogenization of the upper step is made of hot rolling treatment, the hot rolling temperature is 550 ° C, the final rolling temperature is 350 ° C, resulting in a hot rolled thickness of 7 mm. Coil;

[0083] 4) Cold rolling: The upper step is obtained by the hot rolled web for cold rolling treatment, the cold rolling speed is 600 m / min, resultin...

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Abstract

The invention discloses a low-voltage electronic aluminum foil for a capacitor and a preparation process thereof. The low-voltage electronic aluminum foil for the capacitor, which is uniform in grain size, good in corrosion effect, high in capacity and short in production period, can be obtained through the process steps of casting, homogenizing, hot rolling, cold rolling, intermediate annealing, foil rolling, finished product annealing, coil dividing, packaging and the like.

Description

[Technical field] [0001] The present invention relates to the field of low-voltage electron aluminum foil processing, and more particularly to a low pressure electron aluminum foil for a capacitor and a preparation process thereof. 【Background technique】 [0002] Electronic aluminum foil is a key raw material for an aluminum electrolytic capacitor, which is a base material manufactured by electrode foil. Aluminum electrolytic capacitors are widely used in household appliances, computer, communication equipment, industrial control, electric vehicles, electric locomotives and military and aerospace equipment. With the rapid development of electronic technology, the use of aluminum electrolytic capacitors is more widely used in rail transit, flat panel display, solar, wind energy batteries and energy-saving sectors, which has been widely used, and the development of electronic aluminum foil is even more quickly. [0003] Electronic aluminum foil as a core raw material of an aluminum...

Claims

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Application Information

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IPC IPC(8): C22F1/04C22F1/02C21D9/46B21B37/74B21B1/40B05D7/14B05D1/28
CPCC22F1/04C21D9/46C22F1/02B21B1/40B21B37/74B05D7/14B05D1/28B05D2202/25
Inventor 刘挺贾桂龙尹建平伍志铭李永春胡传彬黄奎覃雪黄玉芳
Owner 广西正润新材料科技有限公司
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