CN108315788A - A kind of stainless steel continuous electroplating nickel phosphorus boron alloy roll bending and preparation method thereof - Google Patents

A kind of stainless steel continuous electroplating nickel phosphorus boron alloy roll bending and preparation method thereof Download PDF

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Publication number
CN108315788A
CN108315788A CN201810005393.3A CN201810005393A CN108315788A CN 108315788 A CN108315788 A CN 108315788A CN 201810005393 A CN201810005393 A CN 201810005393A CN 108315788 A CN108315788 A CN 108315788A
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nickel
washing
stainless steel
boron alloy
phosphorus boron
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CN201810005393.3A
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CN108315788B (en
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路兴浩
覃仁树
黄鹏超
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Nine Days New Energy Materials Co Ltds In Jiangsu East
Zhenjiang Dongfang Electric Heating Technology Co ltd
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JIANGSU JIUTIAN PHOTOELECTRIC TECHNOLOGY Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/10Electroplating with more than one layer of the same or of different metals
    • C25D5/12Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium
    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D3/00Electroplating: Baths therefor
    • C25D3/02Electroplating: Baths therefor from solutions
    • C25D3/12Electroplating: Baths therefor from solutions of nickel or cobalt
    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D3/00Electroplating: Baths therefor
    • C25D3/02Electroplating: Baths therefor from solutions
    • C25D3/56Electroplating: Baths therefor from solutions of alloys
    • C25D3/562Electroplating: Baths therefor from solutions of alloys containing more than 50% by weight of iron or nickel or cobalt
    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D7/00Electroplating characterised by the article coated

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electroplating Methods And Accessories (AREA)

Abstract

The invention discloses a kind of stainless steel continuous electroplating nickel phosphorus boron alloy roll bendings and preparation method thereof, and preparation section includes successively:Degreasing, electrolytic degreasing, washing, activation, washing, pre-immersion, nickel preplating, washing, the dark nickel of plating, electronickelling phosphorus boron alloy, washing, passivation, washing, closing, washing and drying.Stainless steel electronickelling phosphorus boron alloy roll bending of the present invention has case hardness high, and corrosion resistance is good, the advantages that easily welding.

Description

A kind of stainless steel continuous electroplating nickel phosphorus boron alloy roll bending and preparation method thereof
Technical field
The present invention relates to a kind of stainless steel continuous electroplating nickel phosphorus boron alloy roll bendings and preparation method thereof.
Background technology
Currently, stainless steel has good rustless property, it is widely used, but low easy to produce of stainless steel watch surface hardness is drawn Trace the problems such as being not easy to weld, limits the range of its application.
The technique that stainless steel surface carries out nickel plating is more mature, and CN101824636A discloses a kind of for button lithium electricity The surface treated stainless steel band and its preparation process of pond shell describe the technique that nanometer nickel plating is carried out in stainless steel surface, can To increase the corrosion resistance of coating, improve soldering of stainless steel etc.;CN102409375A discloses a kind of nickel-phosphorus alloy plating Method is primarily adapted for use in the rack plating of irony workpiece;
The technique that stainless-steel roll surface carries out continuous electroplating nickel phosphorus boron alloy has no pertinent literature, with above-mentioned known patent In the presence of apparent difference.
Invention content
Purpose of the present invention is to provide a kind of stainless steel continuous electroplating nickel phosphorus boron alloy volume in view of the defects existing in the prior art The production process of plate is related to blunt after stainless steel pre-immersion and nickel preplating technology, electronickelling phosphorus boron ternary alloy technology and plating Change sealing technique.
The present invention to achieve the above object, adopts the following technical scheme that:A kind of stainless steel continuous electroplating nickel phosphorus boron alloy volume Plate, the roll bending are to use SUS304 SUS430 trades mark stainless steel as substrate, the roll bending formed through continuous electroplating nickel phosphorus boron.
A kind of preparation method of stainless steel continuous electroplating nickel phosphorus boron alloy roll bending, preparation section include successively:Degreasing, electrolysis Degreasing, washing, activation, washing, pre-immersion, nickel preplating, washing, the dark nickel of plating, electronickelling phosphorus boron alloy, washing, passivation, water It washes, close, wash and dries.
Further, the technique of the degreasing be use weight percent for 5~10% metal degreasing agent, temperature 65~ 75 degree;The technique of the electrolytic degreasing is to use weight percent for 5~10% electrolytic etching of metal degreasing agent, temperature 65~75 Degree, 5~10A/dm2 of current density;The technical recipe of the pre-immersion and nickel preplating is:Nickel chloride 150-200g/L, hydrochloric acid 80-150g/L, temperature are 45-55 degree, and wherein pre-immersion is chemical immersion, and the cathode-current density of nickel preplating is 3-10A/ Dm2, pH value 2-4, anode is using titanium indigo plant assembly nickel angle.
Further, the technical recipe of the electronickelling phosphorus boron alloy is:Nickel sulfate 250-350g/L, nickel chloride 40- 50g/L, boric acid 40-50g/L, sodium hypophosphite 70-90g/L, dimethylamino borine 1~3g/L, half brightener DN-99A2- 4ml/L, lauryl sodium sulfate 0.2-0.4ml/L, temperature are 45-55 degree, cathode-current density 3-20A/dm2, pH value 4- 5, anode is using titanium indigo plant assembly nickel angle, coating phosphorus content 5-12%, boron content 0.1-0.5%.
Further, the technique of the passivation is using chromic acid chemical passivation, and the closed technique is closed for BN-96B Processing.
Further, the washing is washed using multi-stage countercurrent, wherein last washing together is recirculated water, conductivity is less than 10us/cm, drying temperature are 100 degree, accelerate drying rate by hot air circulation.
Beneficial effects of the present invention:Stainless steel electronickelling phosphorus boron alloy roll bending of the present invention has case hardness height, Corrosion resistance is good, the advantages that easily welding.
Specific implementation mode
For a better understanding of the present invention, with reference to the embodiment content that the present invention is furture elucidated.But these are implemented Example is only illustrative of the invention and is not intended to limit the scope of the invention.Those skilled in the art can make the present invention various change Dynamic or modification, such equivalent forms are equally listed by the application within the scope of claims limited.
The present invention carries out corrosion resistance coating detection by GB/T6548 using the neutral salt spray test casees of JK~60;Using fluorescence Spectrometer EDX-1800BS surveys plating thickness;Using glow discharge instrument GDS detection coating phosphorus, boron content.
Embodiment 1
It selects the SUS304 stainless steels of 0.1*406mm as substrate, first passes through degreasing, electrolytic degreasing, washing, activation, water It washes, pre-immersion, nickel preplating, washing, dark nickel, electronickelling phosphorus boron alloy, washing, passivation, washing, closing, washing and drying be electroplated Etc. processes.
(1) chemical degreasing agent is used to carry out immersion oil removing, degreasing agent concentration 5%, temperature 70 C, degreasing time 20s.
(2) electrolytic degreasing agent is used to carry out immersion electrolytic degreasing, degreasing agent concentration 5%, temperature 70 C, current density is 10A/dm2, electrolysis time 20s, then washed through 3 stage countercurrents and rinse plate face, rear washing together is recirculated water, and conductivity requires to be less than 10us/cm;
(3) 3% mass concentration sulfuric acid and 3% volumetric concentration hydrochloric acid mixed solution is used to carry out acid-wash activation, pickling time It for 20s, then is washed through 3 stage countercurrents and rinses plate face, rear washing together is recirculated water, and conductivity requires to be less than 10us/cm;
(4) technical recipe that pre-immersion uses for:Nickel chloride 150g/L, hydrochloric acid 80g/L, temperature are 50 degree, immerse the time 20s;
(5) technical recipe that nickel preplating uses for:Nickel chloride 150g/L, hydrochloric acid 80g/L, temperature are 50 degree, cathode current Density is 5A/dm2, anode is using titanium indigo plant assembly nickel angle, time 20s;
(6) be electroplated the technical recipe that dark nickel uses for:Nickel sulfate 250g/L, nickel chloride 40g/L, boric acid 40g/L, temperature are 50 degree, cathode-current density 5A/dm2, anode is using titanium indigo plant assembly nickel angle, time 60s;
(7) electronickelling phosphorus boron alloy use technical recipe for:Nickel sulfate 250g/L, nickel chloride 40g/L, boric acid 40g/L are secondary Sodium phosphite 70g/L, dimethylamino borine 1g/L, half brightener DN-99A 3ml/L, lauryl sodium sulfate 0.3ml/L, temperature Degree is 50 degree, cathode-current density 6A/dm2, pH value 4.5, anode is using titanium indigo plant assembly nickel angle, electroplating time 40s;
(8) chromic acid passivation uses:Chromic anhydride 30g/L, 40 degree of temperature, passivation time 10s;
(9) closing uses:BN-96B mass concentrations 3%, 40 degree of temperature, off-period 10s;
Embodiment 2
It selects the SUS304 stainless steels of 0.1*406mm as substrate, first passes through degreasing, electrolytic degreasing, washing, activation, water It washes, pre-immersion, nickel preplating, washing, dark nickel, electronickelling phosphorus boron alloy, washing, passivation, washing, closing, washing and drying be electroplated Etc. processes.
(1) with (1) in embodiment 1~(6) step;
(2) electronickelling phosphorus boron alloy use technical recipe for:Nickel sulfate 250g/L, nickel chloride 40g/L, boric acid 40g/L are secondary Sodium phosphite 80g/L, dimethylamino borine 2g/L, half brightener DN-99A 3ml/L, lauryl sodium sulfate 0.3ml/L, temperature Degree is 50 degree, cathode-current density 6A/dm2, pH value 4.5, anode is using titanium indigo plant assembly nickel angle, electroplating time 40s;
(3) with (8) in embodiment 1~(9) step;
Embodiment 3
It selects the SUS304 stainless steels of 0.1*406mm as substrate, first passes through degreasing, electrolytic degreasing, washing, activation, water It washes, pre-immersion, nickel preplating, washing, dark nickel, electronickelling phosphorus boron alloy, washing, passivation, washing, closing, washing and drying be electroplated Etc. processes.
(1) with (1) in embodiment 1~(6) step;
(2) electronickelling phosphorus boron alloy use technical recipe for:Nickel sulfate 250g/L, nickel chloride 40g/L, boric acid 40g/L are secondary Sodium phosphite 90g/L, dimethylamino borine 3g/L, half brightener DN-99A 3ml/L, lauryl sodium sulfate 0.3ml/L, temperature Degree is 50 degree, cathode-current density 6A/dm2, pH value 4.5, anode is using titanium indigo plant assembly nickel angle, electroplating time 40s;
(3) with (8) in embodiment 1~(9) step;
Case Pre-nickel plating Dark nickel layer Nickel phosphorus boron layer Binding force Neutral salt spray 48h Weldability Phosphorus content % Boron content %
Embodiment 1 0.3um 0.9um 0.7um Well 8 grades Well 6.3 0.1
Embodiment 2 0.3um 0.9um 0.7um Well 9 grades Well 7.2 0.15
Embodiment 3 0.3um 0.9um 0.7um Well 10 grades Well 8.5 0.17
Table 1
The bound value of each technological parameter (such as temperature, current density, time etc.) cited by the present invention and its area Between be worth, can realize the present invention, embodiment numerous to list herein.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.

Claims (6)

1. a kind of stainless steel continuous electroplating nickel phosphorus boron alloy roll bending, which is characterized in that the roll bending be using SUS304 or SUS430 trades mark stainless steel is as substrate, the roll bending formed through continuous electroplating nickel phosphorus boron.
2. a kind of preparation method based on stainless steel continuous electroplating nickel phosphorus boron alloy roll bending described in claim 1, feature exist In preparation section includes successively:Degreasing, electrolytic degreasing, washing, activation, washing, pre-immersion, nickel preplating, washing, the dark nickel of plating, Electronickelling phosphorus boron alloy, washing, passivation, washing, closing, washing and drying.
3. the preparation method of stainless steel continuous electroplating nickel phosphorus boron alloy roll bending as claimed in claim 2, which is characterized in that described The technique of degreasing is to use weight percent for 5~10% metal degreasing agent, 65~75 degree of temperature;The work of the electrolytic degreasing Skill is to use weight percent for 5~10% electrolytic etching of metal degreasing agent, 65~75 degree of temperature, 5~10A/dm2 of current density; The technical recipe of the pre-immersion and nickel preplating is:Nickel chloride 150-200g/L, hydrochloric acid 80-150g/L, temperature 45-55 Degree, wherein pre-immersion are chemical immersion, and the cathode-current density of nickel preplating is 3-10A/dm2, and pH value 2-4, anode is using titanium Indigo plant assembly nickel angle.
4. the preparation method of stainless steel continuous electroplating nickel phosphorus boron alloy roll bending as claimed in claim 2, which is characterized in that described The technical recipe of electronickelling phosphorus boron alloy is:Nickel sulfate 250-350g/L, nickel chloride 40-50g/L, boric acid 40-50g/L, secondary Asia Sodium phosphate 70-90g/L, dimethylamino borine 1~3g/L, half brightener DN-99A 2-4ml/L, lauryl sodium sulfate 0.2- 0.4ml/L, temperature are 45-55 degree, cathode-current density 3-20A/dm2, pH value 4-5, anode is using titanium indigo plant assembly nickel angle, plating Layer phosphorus content 5-12%, boron content 0.1-0.5%.
5. the preparation method of stainless steel continuous electroplating nickel phosphorus boron alloy roll bending as claimed in claim 2, which is characterized in that described The technique of passivation is using chromic acid chemical passivation, and the closed technique is BN-96B Seal treatments.
6. the preparation method of stainless steel continuous electroplating nickel phosphorus boron alloy roll bending as claimed in claim 2, which is characterized in that described Washing is washed using multi-stage countercurrent, wherein last washing together is recirculated water, conductivity is less than 10us/cm, drying temperature 100 Degree, accelerates drying rate by hot air circulation.
CN201810005393.3A 2018-01-03 2018-01-03 Stainless steel continuous electroplating nickel-phosphorus-boron alloy coiled plate and preparation method thereof Active CN108315788B (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109208049A (en) * 2018-11-08 2019-01-15 天津亿鑫通金属表面处理有限公司 A kind of uniform stainless steel continuous plating process of tint
CN109811334A (en) * 2019-02-25 2019-05-28 宁夏北方巨源液压工贸有限公司 A kind of environment-friendly type metal surface treatment process
CN110029379A (en) * 2019-05-05 2019-07-19 东莞市康圣精密合金材料有限公司 Ultra-wide stainless steel materials nickel plating appearance optimization technique
CN114717614A (en) * 2022-05-27 2022-07-08 江苏星火特钢集团有限公司 Electroplating solution and surface treatment method for improving corrosion resistance of stainless steel by using same
CN116536714A (en) * 2023-05-22 2023-08-04 东莞市华铭铭牌有限公司 Manufacturing method for electroplating thick gold on inner wall of electroformed pipe

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61279696A (en) * 1985-06-04 1986-12-10 Nippon Steel Corp Production of turne sheet having excellent corrosion resistance
CN1526856A (en) * 2003-09-23 2004-09-08 贵研铂业股份有限公司 Continuous nickel plating process for stainless steel wire
KR20050028449A (en) * 2003-09-18 2005-03-23 한국원자력연구소 Method for electroplating ni-p-b alloy and its plating solution
CN1958845A (en) * 2006-11-20 2007-05-09 中国重型汽车集团有限公司 Method in use for chemical plating Mi-P alloy on surface of stainless steel
CN104818508A (en) * 2015-03-31 2015-08-05 江苏九天光电科技有限公司 Precision nickel composite steel strip preparation method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61279696A (en) * 1985-06-04 1986-12-10 Nippon Steel Corp Production of turne sheet having excellent corrosion resistance
KR20050028449A (en) * 2003-09-18 2005-03-23 한국원자력연구소 Method for electroplating ni-p-b alloy and its plating solution
CN1526856A (en) * 2003-09-23 2004-09-08 贵研铂业股份有限公司 Continuous nickel plating process for stainless steel wire
CN1958845A (en) * 2006-11-20 2007-05-09 中国重型汽车集团有限公司 Method in use for chemical plating Mi-P alloy on surface of stainless steel
CN104818508A (en) * 2015-03-31 2015-08-05 江苏九天光电科技有限公司 Precision nickel composite steel strip preparation method

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
曾晓雁: "《表面工程学》", 30 April 2017, 机械工业出版社 *
沈亚学: "《防护与装饰性电镀》", 30 November 2008, 国防工业出版社 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109208049A (en) * 2018-11-08 2019-01-15 天津亿鑫通金属表面处理有限公司 A kind of uniform stainless steel continuous plating process of tint
CN109811334A (en) * 2019-02-25 2019-05-28 宁夏北方巨源液压工贸有限公司 A kind of environment-friendly type metal surface treatment process
CN110029379A (en) * 2019-05-05 2019-07-19 东莞市康圣精密合金材料有限公司 Ultra-wide stainless steel materials nickel plating appearance optimization technique
CN114717614A (en) * 2022-05-27 2022-07-08 江苏星火特钢集团有限公司 Electroplating solution and surface treatment method for improving corrosion resistance of stainless steel by using same
CN116536714A (en) * 2023-05-22 2023-08-04 东莞市华铭铭牌有限公司 Manufacturing method for electroplating thick gold on inner wall of electroformed pipe

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