CN100342046C

CN100342046C - High-specific capacity alloy foil and producing mehtod thereof

Info

Publication number: CN100342046C
Application number: CNB031324258A
Authority: CN
Inventors: 王涛; 粱岩; 马保伟; 刘桂云; 徐涛; 王�琦
Original assignee: Northeast Light Alloy Co Ltd
Current assignee: Medium Aluminum Foil Co ltd
Priority date: 2003-06-06
Filing date: 2003-06-06
Publication date: 2007-10-10
Anticipated expiration: 2023-06-06
Also published as: CN1552929A; CN1990890A; CN100478475C

Abstract

The present invention relates to aluminum base alloy and a production method thereof, particularly to a high-specific capacity alloy foil and a production method thereof. The alloy comprises the components of the following portions by weight: 0.2 to 0.25 portion of Cu, 0.04 to 0.06 portion of Mg, 0.20 portion of Zn, 0.1 to 0.4 portion of Mn, 0.8 to 1.0 portion of Fe, 1.0 portion of Si, 0.2 portion of Ti and 100 portions of Al. The production method of the high-specific capacity alloy foil comprises the following steps: raw materials are mixed; a forging process is carried out; an equalization treatment is carried out under the temperature of 600 DEG C; a thick roll is formed by a heat rolling process under the temperature of 500 DEG C, and then a cold rolling process is carried out; an intermediate annealing treatment is carried out, and the temperature of the intermediate annealing treatment is from 380 to 420 DEG C by control; a foil material with the thickness of 0.04 to 0.05mm is formed by rolling. The high-specific capacity alloy foil produced by the production method of the high-specific capacity alloy foil has ideal corrosive speed and can form a uniform porous corrosion surface under a specified condition, and the specific capacity of the high-specific capacity alloy foil can reach 370 to 430 Ufcm.

Description

High specific capacitance alloy foil and production method

Technology neck city: what the present invention relates to is a kind of alloy and production method thereof with high specific capacitance.

Background technology: in the existing technology, in order increasing than electric capacity, generally to be that raw material is carried out chemical corrosion in acid solution, to make its surface form the multi-hole type corrosion layer, enlarged surface is long-pending.Existing than capacitor board, its composition (weight percent) is Cu 0.20, Mg 0.05, Zn 0.10, Mn 1.0～1.6, Fe 0.7, Si 0.6, Ti 0.15, the Al of other impurity summation 0.10 (individual element 0.05) and surplus.The ratio electric capacity of this alloy can only reach 80uFcm, and anti-corrosion, and corrosion speed is low, and production efficiency is low.

Summary of the invention:

The objective of the invention is to: a kind of Alloy Foil material that can obtain ideal corrosion surface and high specific capacitance is provided, and a kind of production method that obtains the Alloy Foil of ideal corrosion surface and high specific capacitance can be provided.

The object of the present invention is achieved like this:

A kind of high specific capacitance alloy foil, the alloy ingredient ratio of weight and number is: Cu 0.2～0.25, Mg0.04～0.06, Zn 0.20, Mn 0.1～0.4, Fe 0.8～1.0, Si 1.0, Ti 0.2, Al 100, make the foil that its thickness is 0.04～0.05mm.

Above-mentioned high specific capacitance alloy foil, the ratio of weight and number Cu 0.2 of alloying constituent, Mg 0.3, Zn 0.20, Mn 0.3, Fe 1.0, Si 1.0, Ti 0.3, Al 100.

A kind of production method of high specific capacitance alloy foil, by the alloy ingredient ratio of weight and number be: Cu 0.2～0.25, Mg0.04～0.06, Zn0.20, Mn0.1～0.4, Fe0.8～1.0, Si1.0, Ti0.2, Al100, prepare former trembling, forge, carry out homogenizing at 600 ℃ and handle, under 500 ℃, be rolled into thick volume, cold rollingly again carry out process annealing then and handle, the process annealing temperature is controlled at 380～420 ℃, finally rolls into the thick foil of 0.04～0.05mm; The soaking time that wherein said homogenizing is handled is 8 hours.

The invention has the advantages that:

1, Zn, Mn are regarded as impurity in the traditional aluminium alloy, need strict its content of control, in this product, it as necessary interpolation element, is joined in the alloy with high relatively amount, and the product that adopts processing method of the present invention to make, its corrosion speed is fast than common aluminum alloy, the corrosion back forms uniform porous corrosion surface, improves than electric capacity, and the ratio electric capacity of product of the present invention reaches 380～430uFcm.Its production method ratio is easier to realize, improves the content of Cu, Mg in valid interval, will help the raising of quality product.

2, Alloy Foil is employed in the motorcar air conditioner of being everlasting, and the structure of former scatterer is that many tubing intert into composite foil after soldering forms.Can change the tubing that damages during use.The application of porous flat pipe in automative air conditioning along with continuously extruded technology is produced proposed new requirement to heat transmission soldering composite foil gradually.With the flat motorcar air conditioner of making of porous by a perforated tube after processing with the composite foil brazing filler metal together.In case flat tube has a place to damage like this, then can cause integral body to scrap, and existing composite foil corrosion resistance is better than the corrosion-resistant energy of porous flat pipe material.So in use porous flat pipe damages prior to composite foil often, cause whole scrapping.This product is a kind ofly can satisfy the soldering requirement, can reduce the spoilage of porous flat pipe prior to the multiple paper tinsel of porous flat pipe corrosive pin weldering under working conditions again.

Embodiment 1.

High specific capacitance alloy foil, the alloy ingredient ratio of weight and number is: Cu 0.2 or 0.22 or 0.25, Mg 0.04 or 0.05 or 0.06, Zn 0.20, Mn 0.1 or 0.25 or 0.4, Fe 0.8 or 0.9 or 1.0, Si 1.0, Ti 0.2, Al 100, make the foil that its thickness is 0.04～0.05mm.

Concrete production method is: preparation raw material, forge, and carry out homogenizing at 600 ℃ and handle, under 500 ℃, be rolled into thick volume, cold rollingly again carry out process annealing then and handle, the process annealing temperature is controlled at 380～420 ℃, finally rolls into the thick foil of 0.04～0.05mm.

Embodiment 2.

High specific capacitance alloy foil, the ratio of weight and number Cu 0.2 of alloying constituent, Mg 0.3, Zn 0.20, Mn 0.3, Fe 1.0, Si 1.0, Ti 0.3, Al 100.Its production method is: by the proportioning preparation raw material, forge, carry out homogenizing at 600 ℃ and handle, under 500 ℃, be rolled into thick volume, cold rollingly again carry out process annealing then and handle, the process annealing temperature is controlled at 380～420 ℃, finally rolls into the thick foil of 0.04～0.05mm.The soaking time that described homogenizing is handled is 8～10 hours.

Claims

1, a kind of high specific capacitance alloy foil, it is characterized in that: the alloy ingredient ratio of weight and number is: Cu0.2～0.25, Mg 0.04～0.06, Zn 0.20, Mn 0.1～0.4, Fe 0.8～1.0, Si 1.0, Ti 0.2, Al100, make the foil that its thickness is 0.04～0.05mm.

2, a kind of production method of high specific capacitance alloy foil, it is characterized in that: be: Cu 0.2～0.25, Mg 0.04～0.06, Zn 0.20, Mn 0.1～0.4, Fe 0.8～1.0, Si 1.0, Ti 0.2, Al 100 by the alloy ingredient ratio of weight and number, prepare former trembling, forge, carrying out homogenizing at 600 ℃ handles, under 500 ℃, be rolled into thick volume, cold rollingly again carry out process annealing then and handle, the process annealing temperature is controlled at 380～420 ℃, finally rolls into the thick foil of 0.04～0.05mm; The soaking time that wherein said homogenizing is handled is 8 hours.