CN105040052A - Electroplate liquid and technology for preparing nanocrystalline iron-cobalt-nickel-phosphorus quaternary alloy coating using same - Google Patents
Electroplate liquid and technology for preparing nanocrystalline iron-cobalt-nickel-phosphorus quaternary alloy coating using same Download PDFInfo
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- CN105040052A CN105040052A CN201510585809.XA CN201510585809A CN105040052A CN 105040052 A CN105040052 A CN 105040052A CN 201510585809 A CN201510585809 A CN 201510585809A CN 105040052 A CN105040052 A CN 105040052A
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Abstract
The invention discloses electroplate liquid. The electroplate liquid comprises NiSO4.6H2O, NiCl2.6H2O, FeSO4.7H2O, CoC12.7H2O, H3PO3, H3BO3, trisodium citrate, ascorbic acid and sodium dodecyl sulfate. The invention further discloses a technology for preparing a nanocrystalline iron-cobalt-nickel-phosphorus quaternary alloy coating using the electroplate liquid. The technology comprises the steps that the technology comprises the pretreatment of a plating piece and the electrodeposition treatment process, the pretreated plating piece is taken as a cathode, a nickel plate is taken as an anode, the pretreated plating piece and the nickel plate are directly put into the electroplate liquid to conduct direct current electrodeposition, and the quaternary nano-alloy coating which is bright, smooth and compact in texture is obtained finally. According to the electroplate liquid and the technology for preparing the nanocrystalline iron-cobalt-nickel-phosphorus quaternary alloy coating using the same, the technology is simple, the electroplate is environmentally friendly and stable, the plating is made of nanocrystalline, brightness and smoothness are achieved, the texture is compact, and high hardness, high abrasion resistance and high corrosion resistance are achieved.
Description
Technical field
The present invention relates to a kind of electroplate liquid and utilize it to prepare the technique of nano crystal iron-cobalt-nickel-phosphorus quad alloy coating, belong to metal deposition electroplating technology technical field.
Background technology
Galvanic deposit is one of important surface engineering technology, and along with the progress of expanding economy and technology, galvanic deposit is anti-corrosion to height from the protection of general decoration, finish and functional future development.Metal alloy coating, because having the outstanding over-all properties not available for many single element metal plating, obtains in each field and uses widely.Iron-cobalt-nickel-phosphorus quad alloy coating, coating light is smooth, dense structure, has high rigidity, high-wearing feature and high-corrosion resistance, is far smaller than chromium, is of very high actual application value to the pollution of environment.
Summary of the invention
For solving the deficiencies in the prior art, the object of the invention is to, a kind of galvanic deposit preparation technology of nano crystal iron-cobalt-nickel-phosphorus quad alloy coating is provided, make the coating of acquisition have higher surface hardness, high-wearing feature and high corrosion resistance.
Technical scheme of the present invention is: a kind of electroplate liquid, is characterized in that, the solution of described electroplate liquid is deionized water, and each component and the mass body volume concentrations of solute are:
A kind of technique utilizing electroplate liquid to prepare nano crystal iron-cobalt-nickel-phosphorus quad alloy coating, comprise pre-treatment and the electrodeposition process process of plating piece, it is characterized in that, negative electrode will be done through pretreated plating piece, nickel plate does anode, directly insert in electroplate liquid and carry out DC electrodeposition, finally obtain quaternary nano-alloy plating layer that is bright smooth, dense structure.
The aforesaid technique utilizing electroplate liquid to prepare nano crystal iron-cobalt-nickel-phosphorus quad alloy coating, is characterized in that,
Specific embodiment is as follows:
(1) according to said components and mass body volume concentrations preparation electroplate liquid;
(2) pre-treatment of plating piece: by plated matrix surface oil removing, activating pretreatment, removes the oil on plating piece surface, schmutzband and zone of oxidation;
(3) electrodeposition process: the plating piece as negative electrode and the nickel plate as anode are inserted in the electroplate liquid that step (1) prepares and carry out DC electrodeposition, finally obtains that light is smooth, the quaternary nano-alloy plating layer of dense structure.
The aforesaid technique utilizing electroplate liquid to prepare nano crystal iron-cobalt-nickel-phosphorus quad alloy coating, it is characterized in that, also comprise the step of galvanic deposit aftertreatment after described electrodeposition process: washed by the plating piece after galvanic deposit, and dry up with blower after cleaning.
The aforesaid technique utilizing electroplate liquid to prepare nano crystal iron-cobalt-nickel-phosphorus quad alloy coating, is characterized in that, the current density that described DC electrodeposition adopts is 2 ~ 4A/dm
2.
The aforesaid technique utilizing electroplate liquid to prepare nano crystal iron-cobalt-nickel-phosphorus quad alloy coating, it is characterized in that, described electrodeposition temperature 50 ~ 70 DEG C, electrodeposition time is 2 ~ 3h.
The aforesaid technique utilizing electroplate liquid to prepare nano crystal iron-cobalt-nickel-phosphorus quad alloy coating, it is characterized in that, the pH value of described electroplate liquid is 1.5 ~ 3.
The beneficial effect that the present invention reaches:
1, plating solution environmental protection, little to the pollution of environment, not containing sexavalent chrome in waste liquid;
2, coating is nanocrystalline, smooth, the dense structure of light;
3, hardness is high, can reach more than 1000HV, and wear resisting property is good;
4, corrosion resistance and good.
Accompanying drawing explanation
Fig. 1 is nano-alloy plating layer microscope (SEM) schematic diagram of the embodiment of the present invention 1;
Fig. 2 is nano-alloy plating layer microscope (SEM) schematic diagram of the embodiment of the present invention 2;
Fig. 3 is nano-alloy plating layer microscope (SEM) schematic diagram of the embodiment of the present invention 3;
Fig. 4 is nano-alloy plating layer X-ray diffraction (XRD) schematic diagram of the embodiment of the present invention 1;
Fig. 5 is nano-alloy plating layer X-ray diffraction (XRD) schematic diagram of the embodiment of the present invention 2;
Fig. 6 is nano-alloy plating layer X-ray diffraction (XRD) schematic diagram of the embodiment of the present invention 3.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
Embodiment 1:
Electroplate liquid used in the present embodiment composed as follows, by mass body volume concentrations (g/L):
Wherein, the pH value of described electroplate liquid is 3.
Utilize electroplate liquid to prepare a technique for nano crystal iron-cobalt-nickel-phosphorus quad alloy coating, specific embodiment is as follows:
(1) according to said components and mass body volume concentrations preparation galvanic deposit nano crystal iron-cobalt-nickel-phosphor alloy electroplate liquid;
(2) pre-treatment of plating piece: by plated matrix surface oil removing, activating pretreatment, removes the oil on plating piece surface, schmutzband and zone of oxidation;
(3) electrodeposition process: the plating piece as negative electrode and the nickel plate as anode are inserted in the electroplate liquid that step (1) prepares and carry out DC electrodeposition, current density is 2A/dm
2, keep electrodeposition temperature 65 DEG C, electrodeposition time 2h, finally obtain quaternary nano-alloy plating layer that is bright smooth, dense structure.
(4) galvanic deposit aftertreatment: the plating piece after galvanic deposit is washed, and dry up with blower after cleaning.
Embodiment 2
Electroplate liquid used in the present embodiment composed as follows, by mass body volume concentrations (g/L):
Wherein, the pH value of described electroplate liquid is 2.5.
Utilize electroplate liquid to prepare a technique for nano crystal iron-cobalt-nickel-phosphorus quad alloy coating, specific embodiment is as follows:
(1) according to said components and mass body volume concentrations preparation galvanic deposit nano crystal iron-cobalt-nickel-phosphor alloy electroplate liquid;
(2) pre-treatment of plating piece: by plated matrix surface oil removing, activating pretreatment, removes the oil on plating piece surface, schmutzband and zone of oxidation;
(3) electrodeposition process: the plating piece as negative electrode and the nickel plate as anode are inserted in the electroplate liquid that step (1) prepares and carry out DC electrodeposition, current density is 3A/dm
2, keep electrodeposition temperature 65 DEG C, electrodeposition time 2h, finally obtain quaternary nano-alloy plating layer that is bright smooth, dense structure.
(4) galvanic deposit aftertreatment: the plating piece after galvanic deposit is washed, and dry up with blower after cleaning.
Embodiment 3
Electroplate liquid used in the present embodiment composed as follows, by mass body volume concentrations (g/L):
The pH value of electroplate liquid is 1.5.
Utilize electroplate liquid to prepare a technique for nano crystal iron-cobalt-nickel-phosphorus quad alloy coating, specific embodiment is as follows:
(1) according to said components and mass body volume concentrations preparation galvanic deposit nano crystal iron-cobalt-nickel-phosphor alloy electroplate liquid;
(2) pre-treatment of plating piece: by plated matrix surface oil removing, activating pretreatment, removes the oil on plating piece surface, schmutzband and zone of oxidation;
(3) electrodeposition process: the plating piece as negative electrode and the nickel plate as anode are inserted in the electroplate liquid that step (1) prepares and carry out DC electrodeposition, current density is 4A/dm
2, keep electrodeposition temperature 65 DEG C, electrodeposition time 2h, finally obtain quaternary nano-alloy plating layer that is bright smooth, dense structure.
(4) galvanic deposit aftertreatment: the plating piece after galvanic deposit is washed, and dry up with blower after cleaning.
Corrosion resistant test to embodiment gained coating:
Polarization curve is adopted to measure the erosion resistance of alloy: carry out on PS-268A electrochemical workstation, corrosive fluid is 3.5%NaCl solution, and reference electrode is saturated calomel electrode, and supporting electrode is Pt electrode, and alloy layer is working electrode.
Sample in Example, area is 1cm
2, by sample epoxy encapsulation, coating is exposed, and is immersed in 3.5%NaCl solution, measures its polarization curve, and the corrosion electric current density of coating the results are shown in following table 1:
The solidity to corrosion experiment of each embodiment coating of table 1
Experimental result shows: along with the increase of P content in coating, and the solidity to corrosion of coating improves, and along with the increase of P content, the amplitude that solidity to corrosion improves reduces.
Hardness determination to embodiment gained coating:
HXD-1000TC digital micro-analysis sclerometer is adopted to measure the microhardness of coating.Test load 0.98N, the load hold-time is 15s, and the microhardness testing of each sample the results are shown in following table 2:
The experiment of hardness of each embodiment coating of table 2
| Embodiment | Hardness (HV) |
| 1 | 860.5 |
| 2 | 1219.4 |
| 3 | 1040.3 |
Experimental result shows: the hardness of iron-cobalt-nickel-phosphorus quad alloy coating is higher, along with the increase of P content in coating, and the hardness first increases and then decreases of coating.
Nano-alloy plating layer Electronic Speculum (SEM) photo of each embodiment gained coating as shown in Figure 1 to Figure 3, as seen from the figure: the alloy layer of DC electrodeposition is without micro-crack, and dense structure, grain-size is in ten a few to tens of nanometers.
X-ray diffraction (XRD) collection of illustrative plates of each embodiment gained coating see Fig. 4, Fig. 5, Fig. 6, as seen from the figure:
Because XRD figure spectrum is upper containing wide diffuse scattering peak, this illustrates that iron-cobalt-nickel-phosphorus quad alloy coating contains noncrystalline structure.So coating formed mutually primarily of nano-crystalline and amorphous.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and distortion, these improve and distortion also should be considered as protection scope of the present invention.
Claims (7)
1. an electroplate liquid, is characterized in that, the solution of described electroplate liquid is deionized water, and each component and the mass body volume concentrations of solute are:
2. the technique utilizing the electroplate liquid described in claim 1 to prepare nano crystal iron-cobalt-nickel-phosphorus quad alloy coating, comprise pre-treatment and the electrodeposition process process of plating piece, it is characterized in that, negative electrode will be done through pretreated plating piece, nickel plate does anode, directly insert in electroplate liquid and carry out DC electrodeposition, finally obtain quaternary nano-alloy plating layer that is bright smooth, dense structure.
3. the technique utilizing electroplate liquid to prepare nano crystal iron-cobalt-nickel-phosphorus quad alloy coating according to claim 2, it is characterized in that, specific embodiment is as follows:
(1) according to said components and mass body volume concentrations preparation electroplate liquid;
(2) pre-treatment of plating piece: by plated matrix surface oil removing, activating pretreatment, removes the oil on plating piece surface, schmutzband and zone of oxidation;
(3) electrodeposition process: the plating piece as negative electrode and the nickel plate as anode are inserted in the electroplate liquid that step (1) prepares and carry out DC electrodeposition, finally obtains that light is smooth, the quaternary nano-alloy plating layer of dense structure.
4. the technique utilizing electroplate liquid to prepare nano crystal iron-cobalt-nickel-phosphorus quad alloy coating according to claim 3, it is characterized in that, also comprise the step of galvanic deposit aftertreatment after described electrodeposition process: washed by the plating piece after galvanic deposit, and dry up with blower after cleaning.
5. the technique utilizing electroplate liquid to prepare nano crystal iron-cobalt-nickel-phosphorus quad alloy coating according to claim 3, is characterized in that, the current density that described DC electrodeposition adopts is 2 ~ 4A/dm
2.
6. the technique utilizing electroplate liquid to prepare nano crystal iron-cobalt-nickel-phosphorus quad alloy coating according to claim 3, it is characterized in that, described electrodeposition temperature 50 ~ 70 DEG C, electrodeposition time is 2 ~ 3h.
7. prepare the technique of nano crystal iron-cobalt-nickel-phosphorus quad alloy coating according to the electroplate liquid that utilizes in claim 1-6 described in any one, it is characterized in that, the pH value of described electroplate liquid is 1.5 ~ 3.
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| CN108642547A (en) * | 2018-05-28 | 2018-10-12 | 西南石油大学 | A kind of method that electro-deposition prepares graphene-Ni-Fe-Co alloy layers |
| CN109440149A (en) * | 2018-11-23 | 2019-03-08 | 云南师范大学 | A kind of plating high-speed rail-low tin content electroplate liquid composition and technique |
| CN110029376A (en) * | 2018-01-11 | 2019-07-19 | 泰科电子(上海)有限公司 | Alloy layer, workpiece and electroplate liquid |
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| CN101532152A (en) * | 2009-03-09 | 2009-09-16 | 乔瀚文 | Cobalt-tungsten-iron-nickel alloy electroplating liquid |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110029376A (en) * | 2018-01-11 | 2019-07-19 | 泰科电子(上海)有限公司 | Alloy layer, workpiece and electroplate liquid |
| CN108642547A (en) * | 2018-05-28 | 2018-10-12 | 西南石油大学 | A kind of method that electro-deposition prepares graphene-Ni-Fe-Co alloy layers |
| CN109440149A (en) * | 2018-11-23 | 2019-03-08 | 云南师范大学 | A kind of plating high-speed rail-low tin content electroplate liquid composition and technique |
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