CN109402684A - A kind of stainless steel is silver-plated to use electroplate liquid and application method - Google Patents
A kind of stainless steel is silver-plated to use electroplate liquid and application method Download PDFInfo
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- CN109402684A CN109402684A CN201811400337.6A CN201811400337A CN109402684A CN 109402684 A CN109402684 A CN 109402684A CN 201811400337 A CN201811400337 A CN 201811400337A CN 109402684 A CN109402684 A CN 109402684A
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/46—Electroplating: Baths therefor from solutions of silver
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- Electroplating And Plating Baths Therefor (AREA)
Abstract
Electroplate liquid is used the invention discloses a kind of stainless steel is silver-plated.100~150g/L of sulfosalicylic acid, 15~25g/L of silver nitrate, 80~120g/L of ammonium chloride, 8~15g/L of ethylenediamine, 20~30mL/L of ammonium hydroxide, 1~5g/L of selenium dioxide；The present invention has adherence of coating strong, the stable and environmentally friendly feature of quality.
Description
Technical field
The present invention relates to silver plating process, especially a kind of stainless steel is silver-plated to use electroplate liquid and application method.
Background technique
Currently, the electroplate liquid used in silver-plated industry is mainly the plating solution containing cyanide, cyanide is severe toxicity chemistry system
Agent, the discharge of wastewater containing cyanide will cause serious environmental pollution.Country has put into effect relevant policies and has forbidden using containing at present
The electroplate liquid of cyanide is silver-plated.Has the technical study of non-cyanide silver coating for above situation.But in the presence of current non-cyanide silver coating
State disadvantage: 1) piece surface adherence of coating is bad；2) plating solution unstable quality, service life are short.
Summary of the invention
The purpose of the present invention is to provide a kind of stainless steel silver-plated electroplate liquid and application method.The present invention has coating attached
Property it is strong, quality is stable and the feature of environmental protection.
The invention is realized in this way.A kind of stainless steel it is silver-plated use electroplate liquid, it be made of with following raw materials,
100~150g/L of sulfosalicylic acid, 15~25g/L of silver nitrate,
80~120g/L of ammonium chloride, 8~15g/L of ethylenediamine,
20~30mL/L of ammonium hydroxide, 1~5g/L of selenium dioxide；
The electroplate liquid is prepared as follows:
A, sulfosalicylic acid and silver nitrate solution are mixed, obtains A product；
B, ethylenediamine and ammonium chloride solution are mixed, obtains B product；
C, A product are mixed with B product, obtains C product；
D, ammonium hydroxide is added into C product, until ammonia supersaturation in C product, obtains D product；
E, ammonium acetate is added into D product, obtains E product；
F, by E product pH value be adjusted to 7.5~8 to get.
Stainless steel above-mentioned it is silver-plated use electroplate liquid, it be made of with following raw materials,
110~140g/L of sulfosalicylic acid, 18~23g/L of silver nitrate,
85~110g/L of ammonium chloride, 9~13g/L of ethylenediamine,
22~28mL/L of ammonium hydroxide, 2~4g/L of selenium dioxide.
Stainless steel above-mentioned it is silver-plated use electroplate liquid, it be made of with following raw materials,
Sulfosalicylic acid 130g/L, silver nitrate 20g/L,
Ammonium chloride 100g/L, ethylenediamine 12g/L,
Ammonium hydroxide 25mL/L, selenium dioxide 3g/L.
Stainless steel above-mentioned is silver-plated with the application method of electroplate liquid: piece surface being cleaned up, the electroplate liquid is immersed
It carries out silver-plated；Silver-plated temperature is 20~30 DEG C；Current density is 0.4~0.45A/dm2；When silver-plated area * electroplating current × electricity
When the plating time is 1000~1150dm2AH, 25~30mL/L ammonium hydroxide is added into electroplate liquid.
Compared with the prior art, electroplate liquid of the invention prevents escaping for ammonia by the way that ethylenediamine is added in sulfosalicylic acid
Ease, improves the stability of plating solution, and in the plating process, and silver-plated area * electroplating current * electroplating time is 1000~1150dm
When 2AH, 25~30mL/L ammonium hydroxide is added into electroplate liquid, the stability of electroplate liquid is improved with this, extends plating
The service life of liquid, reduces electroplating cost；Coating adhesion of the invention is strong, effectively increases electroplating quality, and the present invention
Electroplate liquid in be free of cyanide, it is more environmentally-friendly.
Specific embodiment
Embodiment 1.A kind of stainless steel is silver-plated to use electroplate liquid, it is made of with following raw materials:
100~150g/L of sulfosalicylic acid, 15~25g/L of silver nitrate,
80~120g/L of ammonium chloride, 8~15g/L of ethylenediamine,
20~30mL/L of ammonium hydroxide, 1~5g/L of selenium dioxide；
Cyanideless electro-plating liquid above-mentioned is prepared, is prepared according to the following steps:
A, sulfosalicylic acid and silver nitrate solution are mixed, obtains A product；
B, ethylenediamine and ammonium chloride solution are mixed, obtains B product；
C, A product are mixed with B product, obtains C product；
D, ammonium hydroxide is added into C product, until ammonia supersaturation in C product, obtains D product；
E, ammonium acetate is added into D product, obtains E product；
F, by E product pH value be adjusted to 7.5~8 to get.
The silver-plated application method with electroplate liquid of aforementioned stainless steel are as follows: piece surface is cleaned up, the electroplate liquid is immersed
It carries out silver-plated；Silver-plated temperature is 20~30 DEG C；Current density is 0.4~0.45A/dm2；When silver-plated area * electroplating current * is electroplated
When time is 1000~1150dm2AH, 25~30mL/L ammonium hydroxide is added into electroplate liquid.
Embodiment 2.A kind of stainless steel is silver-plated to use electroplate liquid, it is made of with following raw materials:
110~140g/L of sulfosalicylic acid, 18~23g/L of silver nitrate,
85~110g/L of ammonium chloride, 9~13g/L of ethylenediamine,
22~28mL/L of ammonium hydroxide, 2~4g/L of selenium dioxide.
Cyanideless electro-plating liquid above-mentioned is prepared, is prepared according to the following steps:
A, sulfosalicylic acid and silver nitrate solution are mixed, obtains A product；
B, ethylenediamine and ammonium chloride solution are mixed, obtains B product；
C, A product are mixed with B product, obtains C product；
D, ammonium hydroxide is added into C product, until ammonia supersaturation in C product, obtains D product；
E, ammonium acetate is added into D product, obtains E product；
F, by E product pH value be adjusted to 7.5~8 to get.
Aforementioned stainless steel is silver-plated same as Example 1 with the application method of electroplate liquid.
Embodiment 3.A kind of stainless steel is silver-plated to use electroplate liquid, it is made of with following raw materials:
Sulfosalicylic acid 130g/L, silver nitrate 20g/L,
Ammonium chloride 100g/L, ethylenediamine 12g/L,
Ammonium hydroxide 25mL/L, selenium dioxide 3g/L.
Cyanideless electro-plating liquid above-mentioned is prepared, is prepared according to the following steps:
A, sulfosalicylic acid and silver nitrate solution are mixed, obtains A product；
B, ethylenediamine and ammonium chloride solution are mixed, obtains B product；
C, A product are mixed with B product, obtains C product；
D, ammonium hydroxide is added into C product, until ammonia supersaturation in C product, obtains D product；
E, ammonium acetate is added into D product, obtains E product；
F, by E product pH value be adjusted to 7.5~8 to get.
Aforementioned stainless steel is silver-plated same as Example 1 with the application method of electroplate liquid.
Claims (4)
1. a kind of stainless steel it is silver-plated use electroplate liquid, it is characterised in that: it be made of with following raw materials,
The electroplate liquid is prepared as follows:
A, sulfosalicylic acid and silver nitrate solution are mixed, obtains A product；
B, ethylenediamine and ammonium chloride solution are mixed, obtains B product；
C, A product are mixed with B product, obtains C product；
D, ammonium hydroxide is added into C product, until ammonia supersaturation in C product, obtains D product；
E, ammonium acetate is added into D product, obtains E product；
F, by E product pH value be adjusted to 7.5~8 to get.
2. stainless steel according to claim 1 it is silver-plated use electroplate liquid, it is characterised in that: it be made of with following raw materials,
3. stainless steel according to claim 2 it is silver-plated use electroplate liquid, it is characterised in that: it be made of with following raw materials,
4. the silver-plated application method with electroplate liquid of stainless steel according to claim 1-3, it is characterised in that: by zero
Part surface clean is clean, and it is silver-plated to immerse the electroplate liquid progress；Silver-plated temperature is 20~30 DEG C；Current density be 0.4~
0.45A/dm2；When silver-plated area * electroplating current * electroplating time is 1000~1150dm2When AH, 25 are added into electroplate liquid
~30mL/L ammonium hydroxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811400337.6A CN109402684A (en) | 2018-11-22 | 2018-11-22 | A kind of stainless steel is silver-plated to use electroplate liquid and application method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811400337.6A CN109402684A (en) | 2018-11-22 | 2018-11-22 | A kind of stainless steel is silver-plated to use electroplate liquid and application method |
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| CN109402684A true CN109402684A (en) | 2019-03-01 |
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| CN201811400337.6A Pending CN109402684A (en) | 2018-11-22 | 2018-11-22 | A kind of stainless steel is silver-plated to use electroplate liquid and application method |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1692182A (en) * | 2002-11-28 | 2005-11-02 | 新光电气工业株式会社 | Electrolytic silver plating solution |
| CN102560571A (en) * | 2012-02-22 | 2012-07-11 | 江苏大学 | Cyanide-free silver plating stable electroplating solution and preparation method thereof, and silver plating method |
| CN103540970A (en) * | 2013-10-11 | 2014-01-29 | 上海大学 | Method for non-cyanide silver plating |
| CN103540978A (en) * | 2013-10-11 | 2014-01-29 | 上海大学 | Alkaline non-cyanide Ag-Ni alloy electroplating method |
| CN104480500A (en) * | 2014-12-26 | 2015-04-01 | 贵州振华群英电器有限公司（国营第八九一厂） | Cyanide-free electroplating solution for silver plating of copper or copper alloy, preparation method and silver plating process |
| CN104611737A (en) * | 2013-11-05 | 2015-05-13 | 无锡市雪江环境工程设备有限公司 | Imidazole-sulfosalicylic acid silver plating solution and electroplating method |
| CN107299367A (en) * | 2017-08-24 | 2017-10-27 | 重庆立道表面技术有限公司 | Non-cyanide bright plate silver plating solution |
-
2018
- 2018-11-22 CN CN201811400337.6A patent/CN109402684A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1692182A (en) * | 2002-11-28 | 2005-11-02 | 新光电气工业株式会社 | Electrolytic silver plating solution |
| CN102560571A (en) * | 2012-02-22 | 2012-07-11 | 江苏大学 | Cyanide-free silver plating stable electroplating solution and preparation method thereof, and silver plating method |
| CN103540970A (en) * | 2013-10-11 | 2014-01-29 | 上海大学 | Method for non-cyanide silver plating |
| CN103540978A (en) * | 2013-10-11 | 2014-01-29 | 上海大学 | Alkaline non-cyanide Ag-Ni alloy electroplating method |
| CN104611737A (en) * | 2013-11-05 | 2015-05-13 | 无锡市雪江环境工程设备有限公司 | Imidazole-sulfosalicylic acid silver plating solution and electroplating method |
| CN104480500A (en) * | 2014-12-26 | 2015-04-01 | 贵州振华群英电器有限公司（国营第八九一厂） | Cyanide-free electroplating solution for silver plating of copper or copper alloy, preparation method and silver plating process |
| CN107299367A (en) * | 2017-08-24 | 2017-10-27 | 重庆立道表面技术有限公司 | Non-cyanide bright plate silver plating solution |
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Application publication date: 20190301 |