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A kind of copper substrate surface coating structure and preparation method thereof

A copper substrate and coating technology, applied in chemical instruments and methods, metal material coating technology, coating, etc., can solve the problem of products being easily burnt, so as to save the electrochrome plating process, shorten the process flow, simplify The effect of the production process

Active Publication Date: 2016-08-17
XIAMEN RUNNER IND CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the above-mentioned problems existing in the existing copper and copper alloy electroplating, to provide a production process that can shorten the surface electroplating of copper substrates, to eliminate the harm of electroplating chromium to the environment, and to solve the problem that products are easily burned during electroplating. Coke problem, greatly improve yield rate and reduce production cost, save resources of a copper substrate surface coating structure and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A coating structure on the surface of a copper substrate, the structure of which starts from the copper substrate layer is a watt nickel layer with a thickness of 0.5 μm, a semi-gloss nickel layer with a thickness of 10 μm, a PVD corrosion-resistant alloy layer with a thickness of 0.5 μm, and corrosion resistance The alloy can be a zirconium-silicon alloy (zirconium-silicon atomic composition is zirconium 98 silicon 2), a PVD color layer with a thickness of 0.3 μm, and the color layer is zirconium nitride.

[0031] A preparation method of a copper substrate surface coating structure is as follows:

[0032] The first step is the pretreatment of the copper substrate: chemical wax removal and oil removal → electrolytic degreasing → activation; the pretreatment of the copper substrate is carried out in accordance with the currently known treatment methods for chemical wax removal and oil removal, electrolytic degreasing and activation. The material refers to the base materi...

Embodiment 2

[0042] A coating structure on the surface of a copper substrate, the structure of which starts from the copper substrate layer is a watt nickel layer with a thickness of 3 μm, a semi-gloss nickel layer with a thickness of 3 μm, a PVD corrosion-resistant alloy layer with a thickness of 2 μm, and the corrosion-resistant alloy can be It is a chromium-silicon alloy (zirconium-silicon atomic composition is chromium 98 silicon 2), PVD color layer with a thickness of 0.1 μm, and the color layer is zirconium carbide nitrogen.

[0043] A preparation method of a copper substrate surface coating structure is as follows:

[0044] The first step is the pretreatment of the copper substrate: chemical wax removal and oil removal → electrolytic degreasing → activation; the pretreatment of the copper substrate is carried out in accordance with the currently known treatment methods for chemical wax removal and oil removal, electrolytic degreasing and activation. The material refers to the base m...

Embodiment 3

[0055] A coating structure on the surface of a copper substrate, the structure of which starts from the copper substrate layer is a watt nickel layer with a thickness of 1 μm, a semi-gloss nickel layer with a thickness of 4 μm, a PVD corrosion-resistant alloy layer with a thickness of 1 μm, and the corrosion-resistant alloy can be It is a chromium-silicon alloy (the atomic composition of chromium and silicon is chromium 50 silicon 50), PVD color layer with a thickness of 0.2 μm, and the color layer is zirconia.

[0056] A preparation method of a copper substrate surface coating structure is as follows:

[0057] The first step is the pretreatment of the copper substrate: chemical wax removal and oil removal → electrolytic degreasing → activation; the pretreatment of the copper substrate is carried out in accordance with the currently known treatment methods for chemical wax removal and oil removal, electrolytic degreasing and activation. The material refers to the base material...

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Abstract

The invention relates to metal surface treatment, and particularly relates to a surface coating structure of a copper base material and a preparation method thereof. The surface coating structure comprises, from a copper base material layer, a Watt's nickel layer, a semi-bright nickel layer, a PVD corrosion-resistant alloy layer and a PVD color layer. The method includes a step of pretreatment of the copper base material, namely, a step of subjecting the copper base material to chemical paraffin removal and oil removal treatment, performing electrolytic degreasing, and activating; a step of nickel electroplating of the copper base material, namely, a step of subjecting the processed copper base material to Watt's nickel electroplating, and then performing semi-bright nickel electroplating; a step of subjecting the semi-bright nickel layer of the copper base material to wiredrawing processing; a step of hanging the processed copper base material to an electroplating hanger used for PVD film coating to perform hydrocarbon vacuum oil removal and drying; and a step of plating the processed copper base material, after the hydrocarbon vacuum oil removal and drying step, with a PVD corrosion-resistant alloy layer and a PVD color layer. Processes are shortened. The production efficiency is increased. The first pass yield of products is increased by 5-10%.

Description

technical field [0001] The invention relates to metal surface treatment, in particular to a copper substrate surface coating structure and a preparation method thereof. Background technique [0002] At present, the surface nickel-plating and wire-drawing treatment methods of metal copper and copper alloys used in sanitary ware, household appliances and other industries are: chemical wax removal and oil removal → electrolytic degreasing → activation → watt nickel → electroplating copper → semi-bright nickel → wire drawing → chemical degreasing →Bright chrome→PVD vacuum coating color layer. This production process will produce a large amount of waste water and heavy metal ions, such as hexavalent chromium ions, which will cause harm to the environment and human beings. At the same time, this process needs to be manually hung up and down three times, and the production efficiency is low. [0003] Hazards of chrome plating: damage to human skin Hexavalent chromium compounds are...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B9/04B32B15/01C23C28/00C23C28/02
Inventor 余水张先超陈玲李明仁
Owner XIAMEN RUNNER IND CORP