Alkaline semi-bright non-cyanide immersion chemical silvering solution and preparation method thereof

A technology of electroless silver plating and plating solution, applied in liquid chemical plating, metal material coating process, coating, etc., can solve the problem of inability to fully replace, and achieve strong anti-pollution ability, strong tolerance ability, and stable plating solution. Effect

Inactive Publication Date: 2016-12-14
JIAXING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above process can replace cyanide silver plating in a s...

Method used

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  • Alkaline semi-bright non-cyanide immersion chemical silvering solution and preparation method thereof
  • Alkaline semi-bright non-cyanide immersion chemical silvering solution and preparation method thereof
  • Alkaline semi-bright non-cyanide immersion chemical silvering solution and preparation method thereof

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Embodiment 1

[0032] According to bright cyanogen-free silver-plated coating stabilizer preparation method of the present invention, following compound is formulated into stabilizer solution

[0033]

Embodiment 2

[0035] According to bright cyanogen-free silver-plated coating stabilizer preparation method of the present invention, following compound is formulated into stabilizer solution

[0036]

[0037] The plating solution of the invention has strong self-cleaning ability, high stability, low toxicity and can be stored for a long time. The coating has strong binding force, flat surface, semi-brightness, and good discoloration resistance, which can meet the requirements of functional chemical silver plating.

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PUM

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Abstract

The invention discloses an alkaline semi-bright non-cyanide immersion chemical silvering solution and a preparation method thereof. The silvering solution is stable and can be preserved for more than three years at the room temperature, the efficiency is high, the bonding force of a plating layer is good, and the surface of the plating layer is flat, semi-bright and good in anti-tarnish property. The silvering solution is easy to maintain, and only silver ions need to be supplemented during long-term operation; and in addition, the silvering solution is high in anti-pollution capacity and copper ion tolerance.

Description

technical field [0001] The invention specifically relates to the technical field of electrochemical silver plating, in particular to an alkaline semi-bright cyanide-free displacement chemical silver plating solution and a preparation method thereof. Background technique [0002] The silver-plated layer has high electrical and thermal conductivity, good welding performance, high chemical stability to organic acids and alkalis, and its price is cheaper than other precious metals. It has been widely used in the electronics industry, decorations, tableware and various A variety of handicrafts and other fields. Silver plating is divided into electroplating silver plating and chemical silver plating. The depth capability of the latter is much higher than that of the former, so it is applied to plated parts with complex structures. According to the working principle, electroless plating is divided into two types: displacement type and reduction type. The former has higher stabili...

Claims

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Application Information

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IPC IPC(8): C23C18/42
CPCC23C18/42
Inventor 赵健伟
Owner JIAXING UNIV
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