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.