Rare earth-nickel-cobalt-boron multi-element alloy anticorrosion and wear-resistant plating, electroplating liquid and preparation method of electroplating liquid

A multi-alloy, anti-corrosion and wear-resistant technology, applied in the field of metal surface treatment, can solve the problems of high internal stress, easy cracking, high energy consumption, etc., to achieve high current efficiency, reduce internal stress, and increase corrosion resistance.
CN102433577AInactive Publication Date: 2012-05-02黄激扬
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
黄激扬
Publication Date
2012-05-02
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a rare earth-nickel-cobalt-boron multi-element alloy anticorrosion and wear-resistant plating, an electroplating liquid and a preparation method of the electroplating liquid. The plating is of an amorphous mingled nanocrystalline structure, and the microhardness of the plating is HV700-HV1300; and the plating comprises the following components by weight percent: 1wt%-40wt% of cobalt, 0.1wt%-1.5wt% of boron and the balance of nickel and trace rare earth. The electroplating liquid comprises the following components: 180-250g / L of nickel sulfate, 20-50g / L of cobalt sulfate, 30-60g / L of nickel chloride, 2-4g / L of dimethylamine-borane, 30-50g / L of boric acid, 0.001-2g / L of rare earth, 3-5g / L of sodium tartrate, 10-30g / L of sodium citrate or citric acid, and deionzied water which is added to achieve a metered / constant volume. The preparation method of the electroplating liquid comprises the following steps: dissolving nickel sulfate, cobalt sulfate, boric acid and nickel chloride with the deionized water and regulating the pH value; and adding sodium citrate or citric acid, sodium tartrate, rare earth and dimethylamine-borane for the constant volume and sufficiently stirring. The preparation method of electroplating liquid is simple to operate, is high in current efficiency and energy-saving and environmentally-friendly; and the plating is of the amorphous mingled nanocrystalline structure, and has bright, smooth and flaw-free appearance, extremely low porosity, high hardness and good anticorrosion and wear-resistant properties and comprehensive mechanical properties.
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Description

Technical field

[0001] The present invention is the field of metal surface treatment, which specializes in a rare earth -nickel -nickel -cobalt -boron multi -alloy anti -corrosion and abrasion -resistant plating layer, electroplating fluid and its preparation methods. Background technique

[0002] At present, with the continuous enhancement of environmental protection awareness of countries around the world, the traditional hexavalent chromium plating process has faced the trend of being eliminated due to defects such as high pollution, high energy consumption, inefficient, and difficult treatment.The use of hexavalent chromium plating.

[0003] In order to replace heavy pollution hexavalent chromium plating, realize clean production, protect the ecological environment and people's physical health, as a binary or three -yuan alloy plating of chromium plating, it has excellent corrosion resistance and abrasion resistance.The excellent appearance of the peculiar appearance of chrom...

Claims

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