Aluminium strip with tin soldering performance and high corrosion resistance and preparation technology thereof

A preparation process and corrosion-resistant technology, which is applied in the direction of metal material coating process, liquid chemical plating, coating, etc., can solve problems such as unsatisfactory welding of aluminum strips, impossibility of assembly line production, cumbersome production process, etc., to achieve durability Improved acid-base corrosion performance, slow corrosion rate, and improved corrosion resistance

Active Publication Date: 2011-10-12
HUNAN YONGSHENG NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this welding method cannot meet the needs of large-area welded aluminum strips. At the same time, the production process is relatively cumbersome and cannot be used for assembly line production.

Method used

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  • Aluminium strip with tin soldering performance and high corrosion resistance and preparation technology thereof
  • Aluminium strip with tin soldering performance and high corrosion resistance and preparation technology thereof
  • Aluminium strip with tin soldering performance and high corrosion resistance and preparation technology thereof

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Embodiment Construction

[0090] The following examples are intended to illustrate the present invention without further limiting the invention.

[0091] (Example)

[0092] A1060H16 aluminum strip with a thickness of 0.2mm is selected as the base material, and the following process is used to process it.

[0093] 1. Aluminum strip surface pretreatment: alkali etching, water washing, pickling, water washing, zinc dipping, water washing, pickling, water washing, secondary zinc dipping, water washing;

[0094] 2. Electrodeposition process: electroplating copper, washing; electroplating nickel-cobalt alloy, washing; electroplating nickel-tin alloy, washing; drying.

[0095] 3. Post-plating treatment: heat preservation and hydrogen removal.

[0096] The formula and treatment process of above-mentioned various solutions and plating solutions are as follows:

[0097] The formula and treatment process of alkaline etching solution:

[0098] NaOH: 30~70g / L

[0099] Na 3 PO 4 : 20~50g / L

[0100] Na 2 CO ...

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Abstract

The invention discloses an aluminium strip with tin soldering performance and high corrosion resistance and a preparation technology thereof. The aluminium strip can be widely applied to various fields of electrons, energy, precise instruments, automobiles and the like, and the problem that the aluminium strip is difficult to weld is solved. According to the aluminium strip and the preparation technology thereof, aluminium and aluminium alloy strips (aluminium strips for short) serve as a substrate; two surfaces of the substrate are successively electroplated with a copper coating, a nickel and cobalt alloy coating and a tin and nickel alloy coating; and multiple electroplated membranes and the substrate have the advantages of good bonding force, strong anticorrosion performance and better tin soldering performance. The aluminium strip prepared by the preparation technology can be produced by a continuous electroplating method so as to satisfy the requirement on aluminium strip surface treatment.

Description

technical field [0001] The invention belongs to the field of material processing, and in particular relates to a solderable aluminum strip with high corrosion resistance and a preparation process thereof. Background technique [0002] With the development of economy and progress of society, the problems of resources, energy and environment faced by the world will become increasingly severe. In recent years, in order to save energy and materials and reduce production costs, various metal products have been developed in the direction of light, thin, short and small. Aluminum has many advantages such as light weight, good specific strength, high electrical and thermal conductivity, easy recycling, and relatively low cost, and has been used more and more widely. [0003] Aluminum and aluminum alloy strips (hereinafter referred to as aluminum strips) prepared by processing aluminum materials have excellent properties of aluminum materials. First, the specific gravity of aluminum...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D5/14C25D5/50C23F1/36C23G1/12C23C18/31C25D3/38C25D3/56
Inventor 潘勇杜超朱岭唐伦圆雷维新郑军
Owner HUNAN YONGSHENG NEW MATERIALS
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