CN106676593A - Palladium, copper, nickel and molybdenum alloy membrane layer on stainless steel surface and preparation method of palladium, copper, nickel and molybdenum alloy membrane layer - Google Patents
Palladium, copper, nickel and molybdenum alloy membrane layer on stainless steel surface and preparation method of palladium, copper, nickel and molybdenum alloy membrane layer Download PDFInfo
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- CN106676593A CN106676593A CN201611144843.4A CN201611144843A CN106676593A CN 106676593 A CN106676593 A CN 106676593A CN 201611144843 A CN201611144843 A CN 201611144843A CN 106676593 A CN106676593 A CN 106676593A
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- China
- Prior art keywords
- palladium
- molybdenum alloy
- stainless steel
- nickel
- film layer
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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
- C25D3/56—Electroplating: Baths therefor from solutions of alloys
Abstract
The invention relates to a palladium, copper, nickel and molybdenum alloy membrane layer on the stainless steel surface and a preparation method of the palladium, copper, nickel and molybdenum alloy membrane layer. The palladium, copper, nickel and molybdenum alloy membrane layer is made on the stainless steel surface in an electroplating manner; plating liquid is composed of 14-20 g/L of PdCl2, 1-5 g/L of CuSO4.5H2O, 15-30 g/L of NiSO4, 15-30 g/L of Na2MoO4, 2-8 g/L of NaCl, 65-100 ml/L of NH3.H2O, 10-50 g/L of trisodium citrate and 40-100 g/L of ammonium chloride; and according to the process parameters, the current density is 0.5-2 A/dm<2>, temperature is 35-50 DEG C, pH is 8-10, and time is 3-20 min. The binding force between the prepared palladium, copper, nickel and molybdenum alloy membrane layer and a matrix is good, and the corrosion resistant performance is good.
Description
Technical field
The present invention relates to surface treatment technology of material, and in particular to a kind of stainless steel surfaces palladium cupro-nickel molybdenum alloy film layer and its
Preparation method.
Background technology
The good corrosion resistance of rustless steel and machining property make it suffer from extensive utilization in many industries.But
In some special environments, rustless steel still can corrode so that equipment is damaged, and to commercial production huge economic damage is brought
Lose.Wherein, high temperature dilute sulfuric acid and high temperature acetic acid are two typical special environments.
Corrosion potential of the rustless steel in non-oxidative medium can be improved in stainless steel surfaces plating palladium, so as to improve not
The corrosion resistance of rust steel.Add appropriate copper in pure palladium film layer, can further improve rustless steel in non-oxidative medium
In corrosion resistance, copper can improve as a kind of alloying element palladium film layer hardness, reduce palladium film layer porosity, while copper
It is the beneficial element for strengthening rustless steel corrosion-resistant ability.
The content of the invention
It is an object of the invention to provide a kind of stainless steel surfaces palladium cupro-nickel molybdenum alloy film layer and preparation method thereof, with matrix
Adhesion is good, corrosion resistance and good.
To achieve the above object, the present invention provides a kind of stainless steel surfaces palladium cupro-nickel molybdenum alloy film layer, in rustless steel
Electroplating surface is obtained, and plating solution is consisted of the following composition：PdCl214-20g/L, CuSO4·5H2O 1-5g/L, NiSO4 15-
30g/L, Na2MoO415-30g/L, NaCl 2-8g/L, NH3·H2O 65-100ml/L, trisodium citrate 10-50g/
L, ammonium chloride 40-100g/L；Technological parameter is：Electric current density 0.5-2A/dm2, temperature 35-50 DEG C, pH 8-10, time 3-
20min。
Another technical scheme that the present invention is provided is a kind of stainless steel surfaces palladium cupro-nickel molybdenum alloy film layer preparation method, bag
Include：In stainless steel surfaces palladium plating cupro-nickel molybdenum alloy film layer, plating solution is consisted of the following composition：PdCl214-20g/L, CuSO4·
5H2O 1-5g/L, NiSO4 15-30g/L, Na2MoO415-30g/L, NaCl 2-8g/L, NH3·H2O 65-100ml/
L, trisodium citrate 10-50g/L, ammonium chloride 40-100g/L；Technological parameter is：Electric current density 0.5-2A/dm2, temperature
35-50 DEG C, pH 8-10, time 3-20min.
Above-mentioned stainless steel surfaces palladium cupro-nickel molybdenum alloy film layer preparation method, wherein, the preparation method is also wrapped before plating
Include electrochemical deoiling step；Electrochemical deoiling solution composition is：Sodium carbonate 30--60g/L, sodium silicate 20--30g/L, sodium phosphate
40--60 g/L and a little surfactant；Technological parameter is：Temperature 70-80 DEG C, time 5-10min.
Above-mentioned stainless steel surfaces palladium cupro-nickel molybdenum alloy film layer preparation method, wherein, the preparation method is also wrapped after plating
Include drying steps；The drying steps are carried out in drying baker, and operating condition is：85 ± 5 DEG C of temperature, the min of time 30.
Stainless steel surfaces palladium cupro-nickel molybdenum alloy film layer of the present invention and preparation method thereof, can obtain the quaternary of even compact
Alloy film layer, the quaternary alloy film layer is good with basal body binding force, while with good corrosion resistance, test shows, the quaternary is closed
Corrosion rate of the golden membranous layer in 102 DEG C of bromine ion-containing acetic acid is 0.02 gm-2·h-1。
Description of the drawings
Fig. 1 is palladium cupro-nickel molybdenum alloy film layer microscopic appearance figure.
Fig. 2 is the EDS test collection of illustrative plates of palladium cupro-nickel molybdenum alloy film layer.
Specific embodiment
Below in conjunction with Fig. 1~Fig. 2 stainless steel surfaces palladium cupro-nickel molybdenum alloy film layer and preparation method thereof of the present invention is made into
The detailed description of one step.
In present pre-ferred embodiments, the technological process for plating palladium cupro-nickel molybdenum alloy film layer in stainless steel surfaces is：Before plating
Inspection → Solvent degreasing → electrochemical deoiling → hot water wash → pure water washes → activates → and pure water washes → electroplates → and cold water washes → and it is pure
Washing → be dried → packaging.
1）Solvent degreasing
Oil removing is carried out using aviation gasoline, after natural airing next procedure is turned.
2）Electrochemical deoiling
Electrochemical deoiling solution composition and technological parameter are as shown in table 1：
The electrochemical deoiling technique of table 1
| Sodium carbonate（Na2CO3） | 30--60g/L |
| Sodium silicate（Na2SiO3） | 20--30g/L |
| Sodium phosphate（Na3PO4） | 40--60 g/L |
| Surfactant | A little |
| Temperature | 70-80℃ |
| Time | 5-10min |
3）Plating
The present embodiment prepares palladium cupro-nickel molybdenum alloy film layer using galvanoplastic in stainless steel surfaces, and its plating solution is consisted of the following composition：
PdCl214-20g/L,
CuSO4·5H2O 1-5g/L,
NiSO4 15-30g/L,
Na2MoO415-30g/L,
NaCl 2-8g/L,
NH3·H2O 65-100ml/L,
Trisodium citrate 10-50g/L,
Ammonium chloride 40-100g/L.
Technological parameter is as follows：Electric current density 0.5-2A/dm2, temperature 35-50 DEG C, pH 8-10, time 3-20min.
4）It is dried
Process is dried in drying baker.
Operating condition：
Temperature： 85±5℃
Time： 30 min.
5）Packaging
Part is wrapped up with cotton paper and be put in Special packaging box.
The quaternary alloy film layer of even compact can be obtained by this method, as shown in figure 1, the quaternary alloy film layer is tied with matrix
With joint efforts well, while with good corrosion resistance, test shows, the corruption of the quaternary alloy film layer in 102 DEG C of bromine ion-containing acetic acid
Erosion speed is 0.02 gm-2·h-1, as shown in Figure 2.
Claims (4)
1. stainless steel surfaces palladium cupro-nickel molybdenum alloy film layer, it is characterised in that be obtained in stainless steel surfaces plating, plating solution by it is following into
It is grouped into：PdCl214-20g/L, CuSO4·5H2O 1-5g/L, NiSO4 15-30g/L, Na2MoO415-30g/L,
NaCl 2-8g/L, NH3·H2O 65-100ml/L, trisodium citrate 10-50g/L, ammonium chloride 40-100g/L；Technique
Parameter is：Electric current density 0.5-2A/dm2, temperature 35-50 DEG C, pH 8-10, time 3-20min.
2. stainless steel surfaces palladium cupro-nickel molybdenum alloy film layer preparation method, it is characterised in that include：In stainless steel surfaces palladium plating copper
Nickel-molybdenum alloy film layer, plating solution is consisted of the following composition：PdCl214-20g/L, CuSO4·5H2O 1-5g/L, NiSO4 15-
30g/L, Na2MoO415-30g/L, NaCl 2-8g/L, NH3·H2O 65-100ml/L, trisodium citrate 10-50g/
L, ammonium chloride 40-100g/L；Technological parameter is：Electric current density 0.5-2A/dm2, temperature 35-50 DEG C, pH 8-10, time 3-
20min。
3. stainless steel surfaces palladium cupro-nickel molybdenum alloy film layer preparation method as claimed in claim 2, it is characterised in that the preparation
Method also includes before plating electrochemical deoiling step；Electrochemical deoiling solution composition is：Sodium carbonate 30--60g/L, sodium silicate
20--30g/L, sodium phosphate 40--60 g/L and a little surfactant；Technological parameter is：Temperature 70-80 DEG C, time 5-
10min。
4. stainless steel surfaces palladium cupro-nickel molybdenum alloy film layer preparation method as claimed in claim 2, it is characterised in that the preparation
Method also includes after plating drying steps；The drying steps are carried out in drying baker, and operating condition is：Temperature 85 ± 5
DEG C, the min of time 30.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611144843.4A CN106676593A (en) | 2016-12-13 | 2016-12-13 | Palladium, copper, nickel and molybdenum alloy membrane layer on stainless steel surface and preparation method of palladium, copper, nickel and molybdenum alloy membrane layer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611144843.4A CN106676593A (en) | 2016-12-13 | 2016-12-13 | Palladium, copper, nickel and molybdenum alloy membrane layer on stainless steel surface and preparation method of palladium, copper, nickel and molybdenum alloy membrane layer |
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| Publication Number | Publication Date |
|---|---|
| CN106676593A true CN106676593A (en) | 2017-05-17 |
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| CN201611144843.4A Pending CN106676593A (en) | 2016-12-13 | 2016-12-13 | Palladium, copper, nickel and molybdenum alloy membrane layer on stainless steel surface and preparation method of palladium, copper, nickel and molybdenum alloy membrane layer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108796564A (en) * | 2018-07-10 | 2018-11-13 | 中国科学院金属研究所 | A kind of Ni-Mo that high hardness wear-resisting is anti-corrosion alloys/diamond composite coating and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1191392A (en) * | 1997-02-20 | 1998-08-26 | 三星航空产业株式会社 | Multi-layer plated lead frame |
| JP2001234392A (en) * | 2000-02-28 | 2001-08-31 | Seiko Corp | Decorative member |
| CN1383460A (en) * | 2000-06-27 | 2002-12-04 | 西铁城钟表股份有限公司 | Decorative article having white film and prodn. method therefor |
| US8652239B2 (en) * | 2010-05-03 | 2014-02-18 | Worcester Polytechnic Institute | High permeance sulfur tolerant Pd/Cu alloy membranes |
-
2016
- 2016-12-13 CN CN201611144843.4A patent/CN106676593A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1191392A (en) * | 1997-02-20 | 1998-08-26 | 三星航空产业株式会社 | Multi-layer plated lead frame |
| JP2001234392A (en) * | 2000-02-28 | 2001-08-31 | Seiko Corp | Decorative member |
| CN1383460A (en) * | 2000-06-27 | 2002-12-04 | 西铁城钟表股份有限公司 | Decorative article having white film and prodn. method therefor |
| US8652239B2 (en) * | 2010-05-03 | 2014-02-18 | Worcester Polytechnic Institute | High permeance sulfur tolerant Pd/Cu alloy membranes |
Non-Patent Citations (1)
| Title |
|---|
| 鞠鹏飞: "316L不锈钢表面电镀钯合金膜层工艺及其在非氧化性介质中的耐蚀性能研究", 《中国博士学位论文全文数据库 工程科技I辑》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108796564A (en) * | 2018-07-10 | 2018-11-13 | 中国科学院金属研究所 | A kind of Ni-Mo that high hardness wear-resisting is anti-corrosion alloys/diamond composite coating and preparation method thereof |
| CN108796564B (en) * | 2018-07-10 | 2020-05-01 | 中国科学院金属研究所 | High-hardness wear-resistant corrosion-resistant Ni-Mo alloy/diamond composite coating and preparation method thereof |
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Application publication date: 20170517 |