CN86102549A - A kind of technology for plating thick silver on high nickel-base alloy-steel - Google Patents
A kind of technology for plating thick silver on high nickel-base alloy-steel Download PDFInfo
- Publication number
- CN86102549A CN86102549A CN 86102549 CN86102549A CN86102549A CN 86102549 A CN86102549 A CN 86102549A CN 86102549 CN86102549 CN 86102549 CN 86102549 A CN86102549 A CN 86102549A CN 86102549 A CN86102549 A CN 86102549A
- Authority
- CN
- China
- Prior art keywords
- grams per
- technology
- plating
- per liters
- transition layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The present invention is a kind of high nickelio alloy plating thickness silver process, belongs to chemical field.Its objective is economically and can create conditions, in the selection of metal plating, utilize the existing rare metallic material of China for producing large-scale "O from now on.This technology selects for use rare precious metal such as palladium as transition layer, adopts anode activation and nickel preplating novel process.This transition layer performance is better than copper and makes transition layer.φ 1030.5 and its coating outward appearance of 962.5 millimeters "Os of φ of plating out by this technology obtain the white light, do not have loose spot, phenomenons such as dross.All plating baths that technology is used all do not add any additives.
Description
The invention belongs to chemical field:
Metal high nickel-base alloy-steel "O is the sealing element of nuclear reaction core pressure vessel, table
The performance of silvered film is most important to sealing.It is to the sealing of warranty test step pressurized vessel and carrying out smoothly of hot test, and then analyzes, calculates all directly relevant with whole nuclear reactor pressure container sealing.As for the electro-plating method that adopts on different metal material, the 6th phase of the nineteen eighty-two article of " the plating world " Zhang Jiahua is thought: the non-austenitic structure stainless steel of first kind carbon content height, nickel content is low, can adopt anodizing 1-2 minute.The second class austenitic structure stainless steel is shown because of the nickel content height
Very easy passivation can not be adopted anodizing.
" electroplating principle and technology " book of the chief editor of light industry junior college is thought: need to increase carbonate in the silvering solution, improve specific conductivity.
This technology is utilized the anode activation solution then in contrast, adopts anode activation 2-3 minute, the plating piece table
Slightly filbert being advisable, very favourable to strengthening the silvered film bonding force.And all plating baths do not use any organic and inorganic additive without exception.
This technology purpose is economically can be for producing large-scale "O from now on, and sealing element is for development nuclear industry corollary apparatus provides technical foundation.In the selection of substrate coating, utilize China's Rare Metals Materials, satisfy the technical requirements of sealing element.
This technology is that (ring diameter is respectively 962.5 millimeters of 1030.5 millimeters of φ and φ) is silver-plated on GH169 nickel-based alloy pipe (12,7 millimeters of 12,7 millimeters * wall thickness of the φ) "O.The plating pre-treatment is to select the strong detergent powder of soil removability, is cleaned, and reaches the oil removing purpose.After the scouring, again with the alkali lye of decontamination clean do not hang water to the plating piece till.Activate with acid after cleaning, the band acid of activation back enters coating bath again.For destroying oxide film fine and close on the plating piece, we have adopted the anode activating process.The pre-nickel plating that adopts nickelous chloride and nickelous sulfate plating liquid to carry out then ten minutes.The current density of being taked is all taken off limit even lower numerical value by electroplating the numerical value of being put down in writing in the handbook.As for the electric current commutation, we have adopted periodic reverse, and suitably control is stirred and negative electrode translational speed regulating YIN and YANG interpolar distance, obtains better coating.In addition, do not produce fault on the plating piece for making, this technology has also been taked dust prevention.Like this, plating piece has been avoided in hot test because the coating table
Be stained with dust and fault and foaming occur.
Rare precious metals such as this process using palladium are as the transition layer of silvered film, and this transition layer performance is better than the copper layer greatly, and silvered film appearance white light does not have phenomenons (seeing Table 1,2) such as loose spot, dross.The used plating bath of technology does not add any organic or inorganic additive.
*12.7 millimeters of the pipe material φ of sample system
Sample test result behind the large-scale "O of table 2 plating
*12.7 millimeters of the pipe material φ of plating piece system
Embodiment:
Pre-treatment anode activated solution and technology:
Hydrochloric acid 100-150 grams per liter
Nickelous chloride 150-300 grams per liter
0.3 ampere/decimeter of current density
2
Time 2-3 minute
Nickel preplating prescription and technology:
Single nickel salt 200-350 grams per liter
Sodium-chlor 5-10 grams per liter
Boric acid 25-35 grams per liter
pH 5-5.5
Current density 0.5-1 ampere/decimetre
2
Plating palladium liquid formula and technology:
Palladous chloride 18-25 grams per liter
Ammonium chloride 25-30 grams per liter
Strong aqua 35-45 millimeter/liter
pH 8-9
Current density 0.5-1.5 ampere/decimetre
2
Temperature 10-15 ℃
Silver plating liquid prescription and technology:
Silver chloride 45 grams per liters
Potassium cyanide 90 grams per liters
Current density 1-2 ampere/decimetre
2
Temperature 10-35 ℃
Claims (1)
- A kind of with high nickel-base alloy-steel employing anode activation and the nickel preplating technology for plating thick silver of rare precious metal as transition layer, it is characterized in that in the pre-treatment anode activated solution, hydrochloric acid is 100～150 grams per liters, nickelous chloride is 150～300 grams per liters, in the pre-nickel plating solution, single nickel salt is 200～350 grams per liters, and sodium-chlor 5～10 grams per liters, boric acid are 25～35 grams per liters, sodium sulfate is 35～45 grams per liters, in the silver plating solution, silver chloride is 45 grams per liters, and Repone K is 90 grams per liters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86102549 CN86102549A (en) | 1986-10-29 | 1986-10-29 | A kind of technology for plating thick silver on high nickel-base alloy-steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86102549 CN86102549A (en) | 1986-10-29 | 1986-10-29 | A kind of technology for plating thick silver on high nickel-base alloy-steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN86102549A true CN86102549A (en) | 1988-05-11 |
Family
ID=4801774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 86102549 Pending CN86102549A (en) | 1986-10-29 | 1986-10-29 | A kind of technology for plating thick silver on high nickel-base alloy-steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN86102549A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102181892A (en) * | 2011-05-18 | 2011-09-14 | 中国电子科技集团公司第三十八研究所 | Method for improving bonding force of non-cyanide silver plating layer on nickel layer |
| CN104805484A (en) * | 2015-05-08 | 2015-07-29 | 武汉钢铁(集团)公司 | Production method for Cu-Ni/Ni-Ag double-composite coating extra-thin steel strip |
| CN109252197A (en) * | 2018-09-29 | 2019-01-22 | 中国人民解放军第五七九工厂 | A kind of method of carburized parts electrosilvering |
| CN109295452A (en) * | 2018-11-05 | 2019-02-01 | 苏州热工研究院有限公司 | The method that a kind of nuclear power sealing O-ring surface prepares Ag coating |
-
1986
- 1986-10-29 CN CN 86102549 patent/CN86102549A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102181892A (en) * | 2011-05-18 | 2011-09-14 | 中国电子科技集团公司第三十八研究所 | Method for improving bonding force of non-cyanide silver plating layer on nickel layer |
| CN104805484A (en) * | 2015-05-08 | 2015-07-29 | 武汉钢铁(集团)公司 | Production method for Cu-Ni/Ni-Ag double-composite coating extra-thin steel strip |
| CN104805484B (en) * | 2015-05-08 | 2017-04-12 | 武汉钢铁(集团)公司 | Production method for Cu-Ni/Ni-Ag double-composite coating extra-thin steel strip |
| CN109252197A (en) * | 2018-09-29 | 2019-01-22 | 中国人民解放军第五七九工厂 | A kind of method of carburized parts electrosilvering |
| CN109295452A (en) * | 2018-11-05 | 2019-02-01 | 苏州热工研究院有限公司 | The method that a kind of nuclear power sealing O-ring surface prepares Ag coating |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102691081B (en) | A kind of plating silver solution and electro-plating method | |
| CN105483795B (en) | A kind of method that compound copper nano-wire is prepared using underpotential deposition technology | |
| CN103046091B (en) | A kind of electroplate liquid of non-cyanide silver electroplating and electro-plating method | |
| CN104862676A (en) | Graphene oxide nickel-phosphorus composite plating solution, preparation method and applications thereof | |
| CN101260549B (en) | Non-preplating type non-cyanide silver-plating electroplate liquid | |
| CN104357883A (en) | Cyanide-free electroforming gold solution and gold electroforming method | |
| CN105349971A (en) | Aluminum alloy surface modification technology | |
| CN101078131A (en) | Method for electrodepositing ornamental chromium coating in trivalency chromium coating solution | |
| CN1230575C (en) | Continuous nickel plating process for stainless steel wire | |
| CN103540978B (en) | A kind of alkaline non-cyanide is electroplated the method for Ag-Ni alloy | |
| CN109487088A (en) | A kind of waste and old plating piece gradient recycling metal process of copper-based nickel plating-Gold plated Layer | |
| CN86102549A (en) | A kind of technology for plating thick silver on high nickel-base alloy-steel | |
| CN87104216A (en) | Commercial nickel-phosphorus electroplating | |
| CN103540970B (en) | A kind of method of non-cyanide silver coating | |
| CN100575562C (en) | A kind of method for surface electroplating of high-resistivity metallic oxide material | |
| CN110965087A (en) | Cyanide-free zinc dipping solution and preparation method and application thereof | |
| CN102181892B (en) | Method for improving bonding force of non-cyanide silver plating layer on nickel layer | |
| Sherwin et al. | A brief review on nickel and chromium coatings developed by electrochemical route | |
| JPS6142796B2 (en) | ||
| CN105648485B (en) | A kind of cyanogen-free silver-plating solution | |
| CN108642532A (en) | The preparation method and application of scandium additive use and nanometer crystalline Ni-B-Sc coating | |
| CN1016521B (en) | Bright and hard silver electroplating | |
| CN1013592B (en) | Process for producing cyanogenless continuous copper plating | |
| CN110565078B (en) | Method for preparing cobalt-sulfur film on copper surface based on reverse replacement | |
| CN100562603C (en) | A kind of ferroboron chemical plating fluid and ferroboron coating material and preparation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| C10 | Entry into substantive examination | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |