CN115613090A - Electroplating process and equipment for antiwear coating on metal surface - Google Patents
Electroplating process and equipment for antiwear coating on metal surface Download PDFInfo
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- CN115613090A CN115613090A CN202211347337.0A CN202211347337A CN115613090A CN 115613090 A CN115613090 A CN 115613090A CN 202211347337 A CN202211347337 A CN 202211347337A CN 115613090 A CN115613090 A CN 115613090A
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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
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/34—Pretreatment of metallic surfaces to be electroplated
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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
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
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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
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
- C25D17/008—Current shielding devices
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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
- C25D3/04—Electroplating: Baths therefor from solutions of chromium
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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
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
Abstract
The invention relates to the technical field of electroplating processes, in particular to an electroplating process and equipment for a wear-resistant coating on a metal surface, which comprises the following steps: polishing a plurality of pieces to be plated, cleaning, drying and then loading on a hanger; the first motor drives a plurality of moving blocks to move to clamp the piece to be plated, the elastic conductive copper sheet is contacted with the plurality of pieces to be plated, the piece to be plated is sequentially subjected to rust removal and oil removal, water washing, chemical nickel plating, water washing, drying and acid activation, the piece to be plated after acid activation continuously receives water spraying in the process of moving to an electroplating bath, a plating strip can be installed in a bottom bath, and an insulating shielding plate can be installed in a side bath; according to the technical scheme, the nickel layer is chemically plated in the pretreatment, so that the plating layer is easier to form on the surface of the piece to be plated, the piece to be plated is sprayed by water before the piece to be plated is turned into the plating bath, the piece to be plated is prevented from being oxidized again, the insulation board reduces the current at the sharp corner of the piece to be plated, and the plating accompanying strip can divide part of the current at the sharp corner of the piece to be plated in the electroplating process so as to relieve the current density at the sharp corner and uniform the plating thickness.
Description
Technical Field
The invention relates to the technical field of electroplating processes, in particular to an electroplating process and equipment for a wear-resistant coating on a metal surface.
Background
Electroplating is a process of plating a thin layer of other metals or alloys on the surface of some metals by using the principle of electrolysis, and is a process of attaching a layer of metal film on the surface of a metal or other material product by using the action of electrolysis so as to play roles of preventing metal oxidation, improving wear resistance, conductivity, light reflection, corrosion resistance, enhancing appearance and the like. In order to ensure the electroplating quality, the metal to be plated needs to be pretreated before electroplating, specifically, the surface of the metal to be plated is decontaminated and dried; meanwhile, the surface of the metal to be plated is subjected to some special treatment to enable the metal to be plated with a plating layer more easily, the positions of equipment for pretreating the metal to be plated and equipment for electroplating are not tight enough at present, after pretreatment is carried out, the surface of the metal to be plated is influenced or is influenced during the period of putting the metal to be plated into the electroplating equipment, and after wax removal and oil removal, the surface of the metal is provided with a scale film and an oxidation film layer which can influence the effect of the plating layer on the metal;
as is known from the electroplating principle, a coating is only formed when the cathodic polarization potential meets the precipitation potential of the metal ions to be deposited, and the current density at the cathode interface is called the critical current density, which is influenced by the nature of the workpiece substrate, the composition of the electroplating bath and the electroplating process. The current density concentration phenomenon can occur at the sharp corner of a plating piece with a sharp-angled structure, and the burning plating condition can occur when the current density at the sharp corner is more than the limit current density which can be borne by the plating piece. Aiming at the defects of the prior art, the electroplating process and the electroplating equipment for the wear-resistant coating on the metal surface are provided.
Disclosure of Invention
The invention aims to solve the defects in the background technology by providing an electroplating process and equipment for a wear-resistant coating on a metal surface.
The technical scheme adopted by the invention is as follows:
an electroplating process for providing a wear resistant coating on a metal surface, comprising:
the method comprises the following steps: polishing a plurality of pieces to be plated, cleaning, drying and then loading on a hanger;
step two: pretreating the part to be plated, and driving the part to be plated to sequentially perform ultrasonic rust removal, ultrasonic oil removal, water washing and chemical nickel plating by using a moving assembly, wherein the chemical nickel plating time is 5min and the temperature is 90-92 ℃; activating the workpiece to be plated by using a sulfuric acid solution with the mass concentration of 8% as an activating solution for 10s, and spraying tap water on the workpiece to be plated;
step three: adding electroplating solution into the electroplating bath, hanging the pretreated workpiece to be electroplated into the electroplating bath, and electrifying the electroplating bath for electroplating at 30-45 deg.C for 15 min.
As a preferred technical scheme of the invention: the electroplating solution in the third step comprises the following raw materials in concentration:
basic chromium sulfate with the concentration of 0.4mol/L-0.6mol/L;
sodium acetate trihydrate, the concentration is 0.6mol/L;
boric acid with the concentration of 1mol/L;
potassium sulfate with concentration of 0.3-1.2 mol/L.
An electroplating apparatus for providing a wear resistant coating on a metal surface, comprising: the moving assembly is used for driving the piece to be plated to move;
the pretreatment part is positioned below the moving assembly and is used for pretreating the piece to be plated before electroplating;
and the electroplating bath is used for plating chromium on the surface of the piece to be plated.
As a preferred technical scheme of the invention: the pretreatment part comprises a first ultrasonic wave groove, a second ultrasonic wave groove, a first rinsing groove, a nickel plating groove, a second rinsing groove, a drying cylinder and an activation groove in sequence.
As a preferred technical scheme of the invention: the right side of the activation groove is provided with the electroplating bath, two water tanks are arranged between the activation groove and the electroplating bath, and a plurality of spray heads are arranged on the two water tanks and used for spraying the activated part to be plated.
As a preferred technical scheme of the invention: a plurality of bottom grooves are formed in the bottom end of the electroplating bath, side grooves are formed in the inner side walls of the front end and the rear end of the electroplating bath, the bottom grooves are used for installing the plating accompanying strips, and the side grooves are used for installing the shielding plates.
As a preferred technical scheme of the invention: the moving assembly comprises a hanger, a mechanism for driving the hanger to horizontally move and a mechanism for driving the hanger to move up and down.
As a preferred technical scheme of the invention: the hanger comprises a plurality of moving blocks and a fixed seat, wherein elastic conductive copper sheets are arranged between the moving blocks and the fixed seat and are used for contacting a part to be plated to conduct electricity.
Compared with the prior art, the invention has the beneficial effects that: the rack is rotated by 90 degrees through a moving assembly, a pretreatment part, an electroplating bath and the like, a plurality of pieces to be plated are placed on a fixed seat, a first motor is started, the first motor drives a plurality of moving blocks to move to clamp the plurality of pieces to be plated, an elastic conductive copper sheet is contacted with the plurality of pieces to be plated, a second motor and a third motor drive the plurality of pieces to be plated on the rack to sequentially pass through a plurality of grooves of the pretreatment part, the pieces to be plated sequentially undergo rust and oil removal, water washing, chemical nickel plating, water washing, drying and acid activation, the pieces to be plated after acid activation continuously receive water spraying in the process of moving to the electroplating bath, an accompanying plating strip can be installed in a bottom groove and is arranged below a sharp corner of the pieces to be plated, the accompanying plating strip is connected with a cathode of an external power supply, an insulating shielding plate can be installed in a side groove, the insulating shielding plate is positioned on one side of the sharp corner of the pieces to be plated, namely between the anode and the cathode, and current can be distributed around the shielding plate; according to the technical scheme, the nickel layer is chemically plated in the pretreatment, so that a plating layer is more easily formed on the surface of the piece to be plated, the piece to be plated is sprayed by water before the piece to be plated is turned into the plating bath, the piece to be plated is prevented from being oxidized again, the current at the sharp corner of the piece to be plated is reduced by the insulating plate, and the plating accompanying strip can divide part of the current at the sharp corner of the piece to be plated in the electroplating process so as to relieve the current density at the sharp corner and uniform the thickness of the plating layer.
Drawings
FIG. 1 is a schematic overall structure of a preferred embodiment of the present invention;
FIG. 2 is a partial schematic view of a preferred embodiment of the present invention;
FIG. 3 is a partial structural cross-sectional view of a preferred embodiment of the present invention;
FIG. 4 is a second partial schematic structural diagram of the preferred embodiment of the present invention;
FIG. 5 is a third partial schematic view of the preferred embodiment of the present invention;
FIG. 6 is a fourth partial schematic structural view of the preferred embodiment of the present invention;
FIG. 7 is a fifth partial schematic view of the preferred embodiment of the present invention.
The meaning of each label in the figure is:
1. a moving assembly; 11. supporting legs; 12. a cross beam; 121. a slide rail; 13. a first lead screw; 14. a travel bar; 15. a hanging tool; 151. a main board; 1511. a chute; 152. a lifting plate; 153. a moving block; 154. an elastic conductive copper sheet; 155. a fixed seat; 1551. a groove; 156. a second screw rod; 157. a driving gear; 158. a driven gear; 159. a first motor; 16. a second motor; 17. a third motor; 18. a third screw rod;
2. a pretreatment section; 21. a first ultrasonic tank; 211. an ultrasonic generator; 22. a second ultrasonic groove; 23. a first rinsing bath; 231. an overflow plate; 24. a nickel plating bath; 241. a vacuum chamber; 242. an electric heating wire; 25. a second rinsing bath; 26. a drying cylinder; 27. an activation tank;
3. a base;
4. a water tank; 41. a spray head;
5. an electroplating bath; 51. a bottom groove; 52. a side groove; 53. an anode;
6. and (6) a recycling bin.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and the features in the embodiments may be combined with each other, and the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1 to 7, the present embodiment details the above technical solution by the following contents:
the electroplating process of the wear-resistant coating on the metal surface comprises the following steps:
the method comprises the following steps: polishing, cleaning and drying a plurality of pieces to be plated and then mounting the pieces on a hanger 15; the surface of the workpiece to be plated is leveled by utilizing the grinding effect of mechanical polishing, so that the roughness of the surface of the workpiece to be plated is reduced, and preparation is made for subsequent pretreatment.
Step two: pretreating a to-be-plated part, and driving the to-be-plated part by the movable assembly 1 to sequentially perform ultrasonic rust removal, ultrasonic oil removal, water washing and chemical nickel plating, wherein the time of the chemical nickel plating is 5min, and the temperature is 91 ℃; activating the workpiece to be plated by using a sulfuric acid solution with the mass concentration of 8% as an activating solution for 10s, and spraying tap water on the workpiece to be plated; the nickel layer is pre-plated before the hard chromium layer is plated, so that the base body of the piece to be plated and the chromium layer have good bonding force; common activating solutions comprise dilute sulfuric acid and dilute hydrochloric acid solutions, and because the uniform plating capacity and the plating layer binding force of the sulfuric acid type trivalent chromium plating solution are reduced when the concentration of chloride ions in the sulfuric acid type trivalent chromium plating solution is too high, a sulfuric acid solution is adopted to activate a workpiece to be plated, so that the introduction of chloride ions is avoided.
Step three: adding electroplating solution into the electroplating bath, hanging the pretreated to-be-plated part into the electroplating bath, electrifying the electroplating bath for electroplating for 15min at 37 ℃.
The electroplating solution in the third step comprises the following raw materials in concentration:
basic chromium sulfate with the concentration of 0.6mol/L; for providing trivalent chromium ions;
sodium acetate trihydrate, the concentration is 0.6mol/L; sodium acetate trihydrate is a complexing agent of the electroplating solution, the sodium acetate trihydrate can form metal complex ions with chromium ions, and the complex does not change valence in an oxidation-reduction reaction, so that trivalent chromium is prevented from being changed into hexavalent chromium;
boric acid with the concentration of 0.8mol/L; the device is used for maintaining the pH value of the electroplating solution to be stable;
potassium sulfate with concentration of 1mol/L is conductive salt, so that the electroplating solution can be conductive.
In addition, the preferred embodiment of the invention provides electroplating equipment for a wear-resistant coating on a metal surface, which comprises a moving component 1, wherein the moving component 1 is used for driving a part to be plated to move; the pretreatment part 2 is positioned below the mobile component 1, and the pretreatment part 2 is used for pretreating the piece to be plated before electroplating; and the electroplating bath 5 is used for plating chromium on the surface of the piece to be plated.
The pretreatment part 2 comprises a first ultrasonic wave tank 21, a second ultrasonic wave tank 22, a first rinsing tank 23, a nickel plating tank 24, a second rinsing tank 25, a drying cylinder 26 and an activation tank 27 in sequence.
The ultrasonic generators 211 are respectively arranged in the two side tank walls of the first ultrasonic tank 21 and the second ultrasonic tank 22, and the workpiece to be plated is sequentially subjected to rust removal and oil removal through ultrasonic waves.
The periphery of the nickel plating bath 24 is provided with a vacuum chamber 241, the inner walls of the two sides of the nickel plating bath 24 are provided with heating wires 242 for heating the liquid in the nickel plating bath 24, and the vacuum chamber 241 has a certain heat preservation function for preventing the liquid in the nickel plating bath 24 from being cooled.
A plurality of kerve 51 has been seted up to the bottom of plating bath 5, side groove 52 has all been seted up on the both ends inside wall around plating bath 5, kerve 51 is used for the installation to accompany and plates the strip, side groove 52 is used for installing the shielding plate, one side of the inside of plating bath 5 is equipped with positive pole 53, positive pole 53 is plumbous-tin alloy in this embodiment, insulating shielding plate is located the one side of waiting to plate a closed angle department, between positive pole 53 and the negative pole promptly, the electric current can be walked around the shielding plate and distributes, reduce the electric current gathering of waiting to plate a closed angle department, accompany and plate the strip and can divide the electric current of partly waiting to plate a closed angle department in the electroplating process in order to alleviate closed angle department electric current intensive, even cladding material thickness.
The moving assembly 1 comprises a hanger 15, a mechanism for driving the hanger 15 to move horizontally and a mechanism for driving the hanger 15 to move up and down.
The hanger 15 comprises a plurality of moving blocks 153 and a fixed base 155, and an elastic conductive copper sheet 154 is arranged between the plurality of moving blocks 153 and the fixed base 155 and is used for contacting a part to be plated to conduct electricity.
The movable assembly 1 comprises a plurality of parallel supporting legs 11, the tops of the two front supporting legs 11 and the top of the two rear supporting legs 11 are fixedly connected with a beam 12, slide rails 121 are installed on the inner side wall of the rear beam 12, the upper end of the front beam 12 is provided with a first screw rod 13, a third motor 17 is installed on the left side wall of the front beam 12, an output shaft of the third motor 17 is coaxially connected with the first screw rod 13 after rotatably penetrating through the beam 12, a movable rod 14 is arranged between the two beams 12, the rear end of the movable rod 14 extends into the slide rails 121 and is slidably connected with the slide rails 121, the front end of the movable rod 14 penetrates through the first screw rod 13 and is in threaded connection with the first screw rod 13, and the third motor 17 drives the movable rod 14 to move in parallel.
The lower extreme of carriage release lever 14 is equipped with hanger 15, hanger 15 includes mainboard 151, the top of mainboard 151 is equipped with lifter plate 152, the bottom of lifter plate 152 is articulated with the top of mainboard 151, second motor 16 is installed on the top of carriage release lever 14, coaxial coupling has third lead screw 18 behind the output shaft of second motor 16 rotationally passes carriage release lever 14, third lead screw 18 pass one side of lifter plate 152 and with lifter plate 152 threaded connection, second motor 16 is used for driving lifter plate 152 and drives hanger 15 and go up and down.
The bottom end of the main board 151 is provided with a plurality of sliding grooves 1511, each sliding groove 1511 is internally provided with a moving block 153, the top ends of the moving blocks 153 are slidably connected with the sliding groove 1511, the moving blocks 153 are fixedly connected with one another, the top ends of the moving blocks 153 penetrate through the middle sliding groove 1511 and then extend into the main board 151, a second lead screw 156 is arranged inside the main board 151, the second lead screw 156 penetrates through the top end of the moving block 153 and is in threaded connection with the moving blocks 153, a driving gear 157 and a driven gear 158 are arranged on the rear side of the second lead screw 156, the driving gear 157 and the driven gear 158 are both conical gears, the driving gear 157 and the driven gear 158 are meshed with one another, a first motor 159 is installed on the rear side of the top end of the main board 151, an output shaft of the first motor 159 rotatably penetrates through the main board 151 and is fixedly connected with the center of the driving gear 157, the center of the driven gear 158 is fixedly connected with the second lead screw 156, fixing seats 155 are arranged on the rear sides of the moving blocks 153, grooves 1551 are formed in the front side wall of the fixing seats 155, and the first motor 159 is used for driving the moving blocks 153 to horizontally move and to cooperate with the fixing seats 155 to clamp a part to be plated.
The below of preliminary treatment portion 2 is equipped with base 3, and equal fixed connection in the top of base 3 in every groove.
In the device for the wear-resistant coating on the metal surface, a user rotates the hanger 15 by 90 degrees, places a plurality of pieces to be coated on the fixed seat 155, turns on the first motor 159, the first motor 159 drives the driving gear 157 to rotate, the driving gear 157 drives the driven gear 158 to rotate, the driven gear 158 drives the second lead screw 156 to rotate, the plurality of moving blocks 153 move backwards and are matched with the fixed seat 155 to clamp the plurality of pieces to be coated, the grooves 1551 can accommodate the heads of the pieces to be coated, and the elastic conductive copper sheets 154 are in more uniform contact with the plurality of pieces to be coated;
the second motor 16 drives the third screw rod 18 to rotate, the lifting plate 152 is driven by the third screw rod 18 to move downwards, the plurality of pieces to be plated move downwards to enter the first ultrasonic groove 21 for treatment, and after the treatment is finished, the second motor 16 is started again to drive the plurality of pieces to be plated to move upwards and leave the first ultrasonic groove 21;
the third motor 17 drives the first screw rod 13 to rotate, the first screw rod 13 drives the moving rod 14 to move horizontally, a plurality of pieces to be plated on the hanger 15 move horizontally from the upper end of the first ultrasonic groove 21 to the upper end of the second ultrasonic groove 22, the steps are repeated, and the pieces to be plated are processed through the plurality of grooves in sequence;
the workpiece to be plated is sequentially subjected to rust removal and oil removal, water washing, chemical nickel plating, water washing, drying and acid activation, the workpiece to be plated after acid activation continuously receives water spraying in the process of moving to the electroplating bath 5 until the workpiece to be plated enters the electroplating bath 5, and electroplating is started after the power is on.
Comparative example 1
The present comparative example details the above technical solution by the following:
the method comprises the following steps: polishing, cleaning and drying a plurality of pieces to be plated, and then putting the pieces on a hanging tool 15;
step two: pretreating the piece to be plated, and driving the piece to be plated by the moving assembly 1 to sequentially perform ultrasonic rust removal, ultrasonic oil removal, water washing and chemical nickel plating, wherein the time of the chemical nickel plating is 5min, and the temperature is 90 ℃; activating the workpiece to be plated by using a sulfuric acid solution with the mass concentration of 5% as an activating solution for 10s, and spraying tap water on the workpiece to be plated;
step three: adding electroplating solution into the electroplating bath, hanging the pretreated to-be-plated part into the electroplating bath, electrifying the electroplating bath for electroplating for 15min at the electroplating temperature of 36 ℃.
The electroplating solution in the third step comprises the following raw materials in concentration:
basic chromium sulfate with the concentration of 0.6mol/L;
sodium acetate trihydrate, the concentration is 0.8mol/L;
boric acid with the concentration of 0.8mol/L;
potassium sulfate with concentration of 1mol/L.
From a comparison of the plating results of example 1 and comparative example 1, the following conclusions were made:
the difference between example 1 and comparative example 1 is that the concentration of the complexing agent in the electroplating solution is different, namely the concentration of sodium acetate trihydrate is different, the concentration of sodium acetate trihydrate in example 1 is 0.6mol/L, the concentration of sodium acetate trihydrate in comparative example 1 is 0.8mol/L, the same metal is electroplated by using the electroplating solution prepared in example 1 and the electroplating solution prepared in comparative example 1 respectively under the condition that the concentrations of other substances in the electroplating solutions are not changed, and the metal electroplated in example 1 and the metal electroplated in comparative example 1 are subjected to all-around polishing experiments after the electroplating is finished, and the result shows that the metal electroplated in example 1 is more uniform and wear-resistant than the metal electroplated in comparative example 1, so the effect of forming metal complex ions is better by using the sodium acetate trihydrate with the concentration of 0.6mol/L, which is preferred by the invention, and the formed coating is more uniform.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. The electroplating process of the wear-resistant coating on the metal surface is characterized by comprising the following steps:
the method comprises the following steps: polishing, cleaning and drying a plurality of pieces to be plated and then mounting the pieces to a hanger (15);
step two: pretreating the part to be plated, and driving the part to be plated by the moving assembly (1) to sequentially perform ultrasonic rust removal, ultrasonic oil removal, water washing and chemical nickel plating, wherein the time of the chemical nickel plating is 5min, and the temperature is 90-92 ℃; activating the workpiece to be plated by using a sulfuric acid solution with the mass concentration of 8% as an activating solution for 10s, and spraying tap water on the workpiece to be plated;
step three: adding electroplating solution into the electroplating bath, hanging the pretreated workpiece to be electroplated into the electroplating bath, electrifying the electroplating bath for electroplating for 15min at 30-45 deg.C.
2. The process of claim 1, wherein the plating process comprises the steps of: the electroplating solution in the third step comprises the following raw materials in concentration:
basic chromium sulfate with the concentration of 0.4mol/L-0.6mol/L;
sodium acetate trihydrate, the concentration is 0.6mol/L;
boric acid with the concentration of 1mol/L;
potassium sulfate with concentration of 0.3-1.2 mol/L.
3. Electroplating equipment for a wear-resistant coating on a metal surface is characterized by comprising:
the moving component (1), the moving component (1) is used for driving the piece to be plated to move;
the pretreatment part (2), the pretreatment part (2) is positioned below the mobile assembly (1), and the pretreatment part (2) is used for pretreating a piece to be plated before electroplating;
the electroplating bath (5) is used for plating chromium on the surface of the part to be plated.
4. An apparatus for electroplating a wear-resistant coating on a metal surface according to claim 3, wherein: the pretreatment part (2) sequentially comprises a first ultrasonic groove (21), a second ultrasonic groove (22), a first rinsing groove (23), a nickel plating groove (24), a second rinsing groove (25), a drying cylinder (26) and an activation groove (27).
5. An apparatus for electroplating a wear-resistant coating on a metal surface according to claim 4, wherein: the right side of activation groove (27) is equipped with plating bath (5), activation groove (27) with be equipped with two water tanks (4) between plating bath (5), two install a plurality of shower nozzle (41) on water tank (4) for to the activation after wait to plate the piece and spray.
6. An apparatus for the galvanic coating of a wear resistant metal surface according to claim 5, characterized in that: a plurality of bottom grooves (51) are formed in the bottom end of the electroplating tank (5), side grooves (52) are formed in the inner side walls of the front end and the rear end of the electroplating tank (5), the bottom grooves (51) are used for installing plating accompanying strips, and the side grooves (52) are used for installing shielding plates.
7. An apparatus for the galvanic coating of a wear resistant metal surface according to claim 3, characterized in that: the moving assembly (1) comprises a hanger (15), a mechanism for driving the hanger (15) to horizontally move and a mechanism for driving the hanger (15) to move up and down.
8. An apparatus for electroplating a wear-resistant coating on a metal surface according to claim 7, wherein: the hanger (15) comprises a plurality of moving blocks (153) and a fixed seat (155), and elastic conductive copper sheets (154) are arranged between the plurality of moving blocks (153) and the fixed seat (155) and are used for contacting a part to be plated to conduct electricity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211347337.0A CN115613090A (en) | 2022-10-31 | 2022-10-31 | Electroplating process and equipment for antiwear coating on metal surface |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211347337.0A CN115613090A (en) | 2022-10-31 | 2022-10-31 | Electroplating process and equipment for antiwear coating on metal surface |
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| CN115613090A true CN115613090A (en) | 2023-01-17 |
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| CN202211347337.0A Pending CN115613090A (en) | 2022-10-31 | 2022-10-31 | Electroplating process and equipment for antiwear coating on metal surface |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116145120A (en) * | 2023-02-03 | 2023-05-23 | 中国石油大学(华东) | Device and method for chemical plating on surface of oil pipe |
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2022
- 2022-10-31 CN CN202211347337.0A patent/CN115613090A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116145120A (en) * | 2023-02-03 | 2023-05-23 | 中国石油大学(华东) | Device and method for chemical plating on surface of oil pipe |
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