CN108950625B - Electroplating system for electroplating chromium on revolving body workpiece - Google Patents
Electroplating system for electroplating chromium on revolving body workpiece Download PDFInfo
- Publication number
- CN108950625B CN108950625B CN201810646506.8A CN201810646506A CN108950625B CN 108950625 B CN108950625 B CN 108950625B CN 201810646506 A CN201810646506 A CN 201810646506A CN 108950625 B CN108950625 B CN 108950625B
- Authority
- CN
- China
- Prior art keywords
- electroplating
- clamp
- cathode
- tank
- workpiece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- C25D5/08—Electroplating with moving electrolyte e.g. jet electroplating
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D21/00—Processes for servicing or operating cells for electrolytic coating
- C25D21/04—Removal of gases or vapours ; Gas or pressure control
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D21/00—Processes for servicing or operating cells for electrolytic coating
- C25D21/16—Regeneration of process solutions
- C25D21/18—Regeneration of process solutions of electrolytes
-
- 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
- C25D5/48—After-treatment of electroplated surfaces
Abstract
The invention provides an electroplating system for chromium electroplating treatment of a revolving body workpiece, which comprises a working tank, an electroplating device, a workpiece positioning device, a liquid storage tank, a cleaning liquid backflow liquid storage tank, a water tank and a waste gas treatment tank, wherein the workpiece positioning device and the electroplating device are arranged on the working tank, the workpiece positioning device is used for fixing the workpiece, and the electroplating device is used for electroplating the workpiece; a liquid inlet at the bottom and a liquid outlet at the side wall of the working tank are respectively communicated with a liquid outlet and a liquid inlet of the liquid storage tank through pipelines; the exhaust port of the working groove is communicated with the waste gas treatment groove through a pipeline; the spraying cleaning port of the working tank is connected with the water tank through a water inlet pump. The invention has reasonable structure, convenient operation and simple use; the electroplating uniformity of the surface of the workpiece is improved by arranging the electroplating device, the subsequent grinding workload is reduced, and the energy consumption is saved; the waste gas treatment tank and the cleaning liquid backflow liquid storage tank are arranged, so that the discharge of waste gas and waste liquid is reduced, and the recovery treatment and zero discharge of the waste gas and the waste liquid are realized.
Description
Technical Field
The invention relates to an electroplating system, in particular to an electroplating system for chromium electroplating treatment of a revolving body workpiece.
Background
The chromium plating layer has excellent wear resistance and corrosion resistance, although the EU ROHS instruction clearly specifies that the motor electronic equipment cannot contain hexavalent chromium since 2008, and the Chinese ROHS plan matched with the EU instruction is already promoted in China, because the low-cost process technology capable of replacing the chromium plating layer, particularly the hard chromium plating layer, is very deficient in the manufacturing of actual industrial products, the chromium electroplating process still has very wide application in the manufacturing industry field, for example, the steel cold rolling industry adopts the hard chromium plating layer for roughing treatment and out-of-tolerance repair of a roller; the piston ring, the inner wall of the cylinder, the piston rod and the like of the gas turbine adopt hard chromium wear-resistant coatings to prolong the service life; the crane jib of the large engineering machinery adopts a hard chromium plating layer as a wear-resistant and corrosion-resistant protective coating to prolong the service life of a hydraulic piston and a piston cylinder; the large-scale wear out-of-tolerance shaft parts still adopt hard chromium electroplating as out-of-tolerance repair process.
The implementation process of the chromium electroplating process for the large-scale revolving body workpiece has two outstanding problems, one is the problem of controlling the uniformity of the thickness along the axial length direction and the circumferential direction of the revolving body, and because the length of the large-scale revolving body workpiece is larger than 1.5m-4m and even longer, and the circumferential diameter is larger than 250mm-600mm, the large-scale revolving body workpiece often has larger thickness difference at the end part and the circumferential direction of the workpiece, and needs subsequent grinding to keep the uniformity of the whole size, thereby increasing the working procedures and increasing the cost. For some electroplating coatings with textured surfaces, such as roughened chromium-plated workpieces, the subsequent grinding process is strictly forbidden, so that the method has important engineering significance on improving the uniformity of the chromium coating of the large-sized workpiece.
In addition, in the implementation of the chromium electroplating process, the harm of hexavalent chromium in waste gas and cleaning solution to human body and environment is also a problem to be solved urgently. In the chromium electroplating process, substances harmful to human bodies and the environment are mainly hexavalent chromium, belong to swallow poison/inhalation toxicant, can invade the human bodies through digestion, respiratory tracts, skins and mucous membranes, possibly cause hereditary gene defects, have carcinogenic risks and have lasting risks to the environment.
The coating thickness uniformity is often influenced by the cathode-anode spacing distribution uniformity, especially for large-scale revolving body workpieces, the conventional common suspension plating tool fixture cannot ensure the coating thickness uniformity, the thickness deviation of the upper position, the lower position and the circumferential coating is large, and the precise control of the structure size of the surface coating cannot be realized. The electroplating device comprises an electroplating bath and a tool clamp and the like matched with a workpiece, and the reasonable arrangement of the electroplating device plays an important role in ensuring the stability and continuity of electroplating process parameters and the stability of the quality of a workpiece coating. In the published patent "electroplating device and method for optimizing temperature field distribution, ZL 201410203254.3", a design method for realizing uniform plating on the surface of a workpiece by designing an insoluble cylindrical anode, controlling an electrolyte flow field, and spacing between a cathode and an anode is introduced, but no good solution is provided for ensuring the stability of the relative position of the cathode and the anode, solving the problems of waste gas (electrolyte vapor) discharge, automatic cleaning backflow and the like, and in addition, the insoluble cylindrical anode with a fixed size has the defects of difficulty in disassembly and assembly, inflexibility in adjustment and the like. The invention aims to provide an environment-friendly compact electroplating device, which avoids the influence of steam and waste liquid on the surrounding environment and constructors, achieves the effect of environmental protection, and solves the problem of uniformity of the thickness of an electroplated chromium coating of a large-sized revolving body workpiece through structural design, circulating flow of electrolyte, a rotating electrode and the like. The electroplating device provided by the invention is not only suitable for the chromium electroplating process of large-scale revolving body workpieces, such as cold-rolled strip steel roughened rollers, piston columns, cylinders and the like, but also suitable for the electroplating of other metals or electroplating surface treatment processes of the workpieces, and the reduction and the amplification of the device are the embodiment of the invention idea of the invention.
Disclosure of Invention
In view of the defects in the prior art, the invention aims to provide an electroplating system for the chromium electroplating treatment of a revolving body workpiece.
The invention provides an electroplating system for chromium electroplating treatment of a revolving body workpiece, which comprises a working tank, an electroplating device, a workpiece positioning device, a liquid storage tank, a cleaning liquid backflow liquid storage tank, a water tank and a waste gas treatment tank, wherein:
the workpiece positioning device and the electroplating device are arranged on the working tank, the workpiece positioning device is used for fixing a workpiece, and the electroplating device is used for electroplating the workpiece;
a liquid inlet at the bottom and a liquid outlet at the side wall of the working tank are respectively communicated with a liquid outlet and a liquid inlet of the liquid storage tank through pipelines;
the exhaust port of the working tank is communicated with the waste gas treatment tank through a pipeline, and the waste gas treatment tank is used for treating waste gas discharged from the working tank;
the spraying cleaning port of the working groove is connected with a water tank through a water inlet pump, and the water tank can clean the working groove.
Preferably, the plating apparatus includes an anode clamp, a cathode clamp, and a cathode brush clamp, wherein: an insulating material interval is arranged between the anode clamp and the cathode clamp; the cathode electric brush clamp is sleeved on the cathode clamp; the anode clamp and the cathode electric brush clamp are respectively connected to the anode and the cathode of an electroplating power supply.
Preferably, the anode clamp comprises an electric connection end, a plurality of anode hanging pieces and a positioning hole, wherein:
the electric connection end is used for connecting the anode of an electroplating power supply;
a plurality of positioning holes are arranged on the anode clamp, each positioning hole is used for fixing one end of an anode hanging piece, and the other end of the anode hanging piece extends into the working groove;
the anode clamp is fastened above the working groove.
Preferably, the cathode clamp comprises a transmission gear matching surface and a cathode clamp conductive surface, wherein:
the matching surface of the transmission gear is matched with an external gear to realize the transmission of cathode clamping;
the cathode clamp conductive surface is used for contacting the cathode brush clamp.
Preferably, the cathode electric shock clamp includes a conductive end, a fixed mounting end and a brush holder, wherein:
the conductive end is connected with the cathode of the electroplating power supply;
the fixed mounting end is used for fixing the cathode electric shock clamp;
the electric brush fixing frames are distributed in a ring shape and used for clamping the contact cathode.
Preferably, the workpiece positioning device comprises a workpiece positioning clamp installation conical surface, the workpiece positioning device is tightly connected with the end part of the workpiece, and the workpiece positioning device is connected with the cathode clamp through the workpiece positioning clamp installation conical surface in a matched mode.
Preferably, a liquid inlet pump and a liquid outlet pump are arranged between the working groove and the liquid outlet groove;
an air pump is arranged between the working tank and the waste gas treatment tank.
Preferably, a bottom liquid outlet is arranged at the bottom of the working tank, and the working tank is communicated with the liquid storage tank and the cleaning liquid backflow liquid storage tank through the bottom liquid outlet.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention has reasonable and compact structure, convenient operation and disassembly and low cost;
2. the electroplating device is arranged to improve the electroplating uniformity of the surface of the workpiece, reduce the subsequent grinding workload and save energy consumption;
3. the invention is provided with the waste gas treatment tank and the cleaning liquid backflow liquid storage tank, reduces the discharge of waste gas and waste liquid, and realizes the recovery treatment and zero discharge of the waste gas and the waste liquid.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic view of an electroplating system for chromium electroplating treatment of a revolving body workpiece;
FIG. 2 is a cross-sectional view of the working tank of the electroplating system for chromium electroplating treatment of a revolving body workpiece;
FIG. 3 is an exploded view of an electroplating system for chromium electroplating of a rotating body workpiece;
FIG. 4 is a schematic structural diagram of an anode clamp of an electroplating system for chromium electroplating treatment of a revolving body workpiece;
FIG. 5 is a schematic diagram of the assembly of a cathode clamp and a cathode brush clamp of an electroplating system for chromium electroplating treatment of a revolving body workpiece;
FIG. 6 is a schematic diagram of the anode clamp and the working tank sealing cover plate of the electroplating system for chromium electroplating treatment of the revolving body workpiece;
FIG. 7 is a schematic diagram of a workpiece positioning clamp of an electroplating system for chromium electroplating treatment of a revolving workpiece.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.
As shown in fig. 1 to 6, according to the electroplating system for chromium electroplating treatment of a revolving body workpiece provided by the invention, the electroplating system is accurate in position, is in closed circulation, can perform self-cleaning backflow, is simple and compact in structure, has the advantages of low construction cost, high recycling rate, convenience in assembly and disassembly, uniform temperature field distribution, zero emission, environmental protection and the like, and can deposit a coating which is uniform in component, good in surface quality and free of subsequent processing on the surface of the whole large revolving body workpiece. The electroplating system comprises an electroplating power supply 1, a working tank 2, a working tank sealing cover plate 3, an anode clamp 4, an insulating material, a cathode clamp 6, a cathode brush clamp 7, a plating workpiece 8, a workpiece positioning clamp 9, a liquid storage tank 10, a cleaning liquid backflow liquid storage tank 16, a water tank 18 and a waste gas treatment tank 20, wherein: the working tank 2 can be made of stainless steel, titanium alloy, polytetrafluoroethylene and the like, optimally, the titanium alloy is used as the tank body material, the stainless steel can be lined outside the titanium alloy tank body to increase the structural strength, and the polytetrafluoroethylene can be used as the lining material of the titanium alloy tank body to further improve the corrosion resistance. The working groove sealing cover plate 3, the anode clamp 4, the polytetrafluoroethylene lining steel sleeve 5, the cathode clamp 6, the cathode electric brush clamp 7, the plating workpiece 8 and the workpiece positioning clamp 9 are all arranged on the working groove 2, specifically, the working groove 2 is fixedly provided with the working groove sealing cover plate 3, the anode clamp 4 is embedded on the working groove sealing cover plate 3 and is fixed with the working groove 2, the polytetrafluoroethylene lining steel sleeve 5 is placed, the cathode clamp 6 is embedded and arranged, the cathode electric brush clamp 7 is arranged, and finally the workpiece with the workpiece positioning clamp 9 fixed is directly seated on the cathode clamp 6.
In more detail, the working groove sealing cover plate 3 is made of engineering plastics with excellent insulation and corrosion resistance, preferably polytetrafluoroethylene is selected as a cover plate material, and the anode clamp 4 is nested on the working groove sealing cover plate 3; the anode clamp 4 is made of high-conductivity red copper, the anode clamp 4 and an external conductive copper bar are connected to a power supply, the anode clamp 4 comprises an electric connection end 41 and an anode hanging piece 42, the electric connection end 41 is connected with an anode of the electroplating power supply 1, and the anode clamp can also be used as a fixed mounting end to have a positioning function; the anode hanging piece 42 is positioned in the positioning hole 43 of the anode clamp 4 and is connected with the fixed position through welding or threads; the anode hanging piece 42 is matched with the positioning hole 32 and the positioning surface 31 of the working groove sealing cover plate 3, and the anode hanging piece 41 is made of lead-tin alloy material, pure titanium or titanium alloy, platinum-plated pure titanium or titanium alloy, and yttrium oxide-plated pure titanium or titanium alloy; preferably, in order to improve the conductivity of the anode hanging pieces 41 and prevent the anode mud from polluting the electrolyte, platinum-plated pure titanium or titanium alloy is preferably used as an anode hanging piece material, the anode hanging pieces 41 can be made of bars or plates, the width of the anode hanging pieces is 50-100mm, the number of the hanging pieces is selected according to the diameter of a workpiece, the distance between a cathode and an anode and the width of the hanging pieces, preferably 6-24, and more preferably 12 hanging pieces are selected; the anode hanger 41 and the anode clamp 4 may be fixed by welding, screwing, or the like. The whole is fastened on a fixed mounting surface 21 of the working groove 2 through a bolt; the positioning surface 31 has a function of fixing the anode holder 4 and can shield the anode holder 4 from corrosion by the electrolyte.
Furthermore, the insulating material between the anode clamp 4 and the cathode clamp 6 is a polytetrafluoroethylene-lined steel sleeve 5, the polytetrafluoroethylene-lined steel sleeve 5 comprises a boss positioning surface 51, the polytetrafluoroethylene-lined steel sleeve 5 is in threaded connection and fixed with the anode clamp 4 below, the cathode clamp 6 is nested in the boss positioning surface 51 above, the surface of the polytetrafluoroethylene-lined steel sleeve 5 plays a role in insulation and friction lubrication, the friction resistance of the cathode clamp 6 during rotation is conveniently reduced, and the rotary positioning function of the cathode clamp 6 is achieved.
As will be further explained below, the cathode holder 6 includes a workpiece positioning surface 64, a gear surface 62, and a positioning rotary ring groove 61; the workpiece positioning surface 64 is a conical surface in an inner hole at the upper part of the cathode clamp 6, and is matched with the workpiece positioning clamp conical surface 93 of the workpiece positioning clamp 9 to position the plated workpiece 8, so that the stability of the relative position between the plated workpiece 8 and the anode hanging piece 41 is ensured, and the distance between the anode hanging piece 41 and the plated workpiece 8 is kept between 50mm and 400mm, more preferably between 50mm and 200mm, and most preferably between 50mm and 100 mm. The gear surface 62 is positioned on the outer ring surface at the bottom of the cathode clamp 6 and is matched with an external transmission gear to realize the rotation of the cathode clamp 6 and the plating workpiece 8; the positioning rotary ring groove 61 is positioned at the bottom of the cathode clamp 6, and the ring groove surface of the positioning rotary ring groove 61 is matched with a polytetrafluoroethylene-lined steel sleeve 5 fixed on the anode clamp 4 to realize the rotary positioning function; the positioning and rotating structure of the cathode clamp 6 can be designed not only by the ring groove design method, but also by other positioning methods such as inner ring gear surface positioning or fixed multi-gear positioning, which are all the modifications and improvements of the design method of the invention, and belong to the protection scope of the invention.
Furthermore, the cathode electric brush clamp 7 is an installation and clamping platform of conductive carbon brushes, the cathode electric brush clamp 7 is made of high-conductivity red copper, the carbon brushes are uniformly distributed on the cathode electric brush clamp 7 at intervals, the carbon brushes are clamped and then tightly attached to a cathode clamp conductive surface 63 of the cathode clamp 6, so that the input of cathode current of a workpiece is realized, the number of the carbon brushes is selected according to the input current power, and is preferably 6-24. The cathode brush holder 7 has a fixing end 72 for fixing the cathode brush holder 7 so that the cathode brush holder can be fixed in position when the cathode holder 6 rotates, and can be connected to an external bracket by a bolt; the conductive end 71 is connected with the negative electrode of the external electroplating power supply 1; the brush fixing frame 73 is a fixing support of a carbon brush, and is tightly attached to the cathode clamp conductive surface 63 during operation, so that the external power supply is communicated with the cathode clamp 6;
the workpiece positioning clamp 9 selects carbon steel with better strength and toughness as a material, the outer surface of the workpiece positioning clamp can be plated with copper or other high-conductivity coatings such as platinum and gold for improving the conductivity of the workpiece positioning clamp, the workpiece positioning clamp has the function of clamping and fixing the plated workpiece 8, and the open-close type clamp 92 and the workpiece spindle head 81 of the plated workpiece 8 are fastened through the bolt 91, so that the conductive connection between the plated workpiece 8 and the cathode clamp 6 and the positioning of the workpiece are realized. The clamping and fixing are carried out in a manner of holding tightly in an opening and closing manner and assisting in bolt fastening. More preferably, the gripping surface 94 may be an internally threaded surface to increase friction; the positioning function of the workpiece positioning clamp 9 is realized by the outer conical surface 93 of the positioning clamp 9, and the stable control of the position between the plated workpiece 8 and the anode hanging piece 41 is realized by the matching of the workpiece positioning surface 64 of the cathode clamp 6; the outer conical surface positioning is only a design mode for realizing the design idea of the invention, and deformation design processing is carried out on the outer conical surface positioning, such as steps, multi-stage step conical surfaces, multi-stage step steps and the like, which belong to the deformation and improvement of the design method of the invention and belong to the protection scope of the invention.
Furthermore, the electroplating system for the chromium electroplating treatment of the revolving body workpiece further comprises a shielding clamp 82, the shielding clamp 82 is arranged at the end part of the workpiece 8 to be plated, the shielding clamp 82 has the function of isolating the part, which does not need to be plated, in the workpiece 8 to be plated, and shielding an external electric field and an electrolyte, and the material of the shielding clamp can be selected from insulating and corrosion-resistant engineering plastics, such as polytetrafluoroethylene, polypropylene and the like.
The working tank 2 is provided with a plurality of connecting holes, the bottom of the working tank 2 is provided with a liquid inlet 23, the liquid inlet 23 can be used as a liquid outlet when reflowing, the working tank 2 is respectively connected with a liquid storage tank 10 and a cleaning liquid reflowing liquid storage tank 16 through the liquid inlet 23, the side wall of the working tank 2 is provided with a liquid outlet 22, an exhaust port 24 and a spraying cleaning port 25, the liquid outlet 22 is connected with the liquid storage tank 10 through a liquid outlet pump 11, the liquid outlet 22 circulates the electrolyte flowing from the bottom of the working tank 2 to the liquid storage tank 10 when the plating work piece 8 is plated until the plating process is finished, the position of the liquid outlet 22 is lower than the exhaust port 24 and the spraying cleaning port 25; the exhaust port 24 is connected with the waste gas treatment tank 20 through the air extraction pump 19, the exhaust port 24 is mainly used for chromium fog, hydrogen and water vapor generated in the chromium electroplating process, the exhaust port is connected with a pipeline and the air extraction pump 19, and is led into the waste gas treatment tank containing lime water for neutralization and precipitation treatment to remove hexavalent chromium ions in the waste gas; the spray cleaning port 25 is connected with the water tank 18 through the water inlet pump 17.
The working tank 2 is stored with electrolyte circulated from an external liquid storage tank 10, and is a place for electroplating implementation, the platinum-gold-titanium alloy plating anode and the workpiece 8 to be plated are immersed in the electrolyte, electrode reaction occurs in a power-on state, and plating deposition is completed within a specified process time. The liquid storage tank 10 only participates in the circulation of the electrolyte in the electroplating process of the plated workpiece 8 and serves as a storage place of the working electrolyte; the solution in the cleaning solution backflow storage tank 16 does not participate in the circulation of the electrolyte in the electroplating process of the plated workpiece 8, is only used as a temporary cleaning solution storage area, is added into the liquid storage tank 10 to be used as the electrolyte after being subjected to concentration treatment and component analysis adjustment, and achieves the reutilization and zero emission of the cleaning waste liquid.
The working process of the invention is as follows: the plating workpiece 8 is arranged and fixed on the electroplating device after being degreased and activated; after the concentration and the temperature of the electrolyte are adjusted in the liquid storage tank 10, the electrolyte enters the working tank 2 through the liquid inlet pump 13; the flowing direction of the electrolyte in the working tank 2 is from bottom to top; opening the exhaust port 24, connecting the air suction pump 19 and the liquid outlet pump 12, connecting the rotating device, and connecting the power supply to finish electroplating; closing the upper liquid outlet pump 22, closing the lower liquid inlet pump 13, switching on the lower liquid outlet pump 12, and pumping the residual solution back to the liquid storage tank 10; and (4) switching on a water inlet pump 17, returning the residual liquid to a cleaning liquid return storage tank 16 after spraying cleaning, closing rotation, lifting out of the working tank, and completing electroplating.
Specifically, before electroplating, the working tank sealing cover plate 3 and the anode clamp 4 with the fixed anode hanging piece 42 are fastened on the fixed mounting surface 21 of the working tank through bolts; the cathode electric brush clamp 7 and the anode clamp 4 are respectively connected with the cathode and the anode of the electroplating power supply 1; the cathode clamp 6 nested on the polytetrafluoroethylene-lined steel sleeve 5 rotates under the transmission of an external gear and drives the plated workpiece 8, and a carbon brush fixed on the cathode electric brush clamp 7 is tightly attached to the cathode clamp conductive surface 63 to realize the power connection of the plated workpiece 8; the workpiece positioning clamp 9 and the plating workpiece 8 are fastened and then directly sleeved on the cathode clamp 6;
during electroplating: a liquid inlet 23 at the bottom of the working tank 2 is communicated with the liquid storage tank 10 through a liquid inlet pump 13, a three-way valve 14 and a pipeline, so that the electrolyte with the adjusted temperature and components enters the working tank 2; a liquid outlet 22 on the upper side wall of the working tank 2, a pipeline and a liquid outlet pump 11 are communicated with the liquid storage tank 10, so that the circulation of the electrolyte is realized; the exhaust port 24, the air pump 19 and the pipeline on the upper side wall of the working tank 2 are communicated with the waste gas treatment tank 20, so that the waste gas is neutralized in the electroplating process; switching on the electroplating power supply 1 and the gear transmission power supply to start electroplating;
after the electroplating is finished: after the electroplating is finished, the electroplating power supply 1, the liquid inlet pump 13 and the air suction pump 19 are closed; a liquid outlet 23 at the bottom of the working tank 2 is communicated with the liquid storage tank 10 through a liquid outlet pump 12, a three-way valve 14 and a pipeline, and the electrolyte in the working tank 2 is pumped back to the liquid storage tank 10; the spraying cleaning port 25, the pipeline and the water inlet pump 17 on the upper side wall of the working groove 2 are communicated with the water tank 18, and external cleaning water is introduced to perform spraying cleaning on the plated workpiece; a liquid outlet 23 at the bottom of the working tank 2 is communicated with the cleaning liquid reflux liquid storage tank 16 through a liquid outlet pump 15, a three-way valve 14 and a pipeline, and residual liquid and cleaning liquid are refluxed to the cleaning liquid reflux liquid storage tank; and (3) turning off the cathode clamping gear transmission power supply, turning off the cleaning water inlet pump 17 and the liquid outlet pump 12, and hanging out the plating workpiece 8 to finish electroplating.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (5)
1. The utility model provides an electroplating system for solid of revolution work piece chromium electroplating is handled which characterized in that, includes work groove, electroplating device, work piece positioner, reservoir, washing liquid backward flow reservoir, water tank and exhaust-gas treatment groove, wherein:
the workpiece positioning device and the electroplating device are arranged on the working tank, the workpiece positioning device is used for fixing a workpiece, and the electroplating device is used for electroplating the workpiece;
a liquid inlet at the bottom and a liquid outlet at the side wall of the working tank are respectively communicated with a liquid outlet and a liquid inlet of the liquid storage tank through pipelines;
the exhaust port of the working tank is communicated with the waste gas treatment tank through a pipeline, and the waste gas treatment tank is used for treating waste gas discharged from the working tank;
the spraying cleaning port of the working tank is connected with a water tank through a water inlet pump, and the water tank can clean the working tank;
the electroplating device comprises an anode clamp, a cathode clamp and a cathode brush clamp, wherein: an insulating material interval is arranged between the anode clamp and the cathode clamp; the cathode electric brush clamp is sleeved on the cathode clamp; the anode clamp and the cathode electric brush clamp are respectively connected to the anode and the cathode of an electroplating power supply;
the workpiece positioning device comprises a workpiece positioning clamping conical surface, the workpiece positioning device is tightly connected with the end part of the workpiece, and the workpiece positioning device is connected with a cathode clamp through the workpiece positioning clamping conical surface in a matched manner;
the cathode clamp comprises a transmission gear matching surface and a cathode clamp conductive surface, wherein:
the matching surface of the transmission gear is matched with an external gear to realize the transmission of cathode clamping;
the cathode clamp conductive surface is used for contacting the cathode brush clamp.
2. The electroplating system for chromium electroplating treatment of revolving body workpieces according to claim 1, wherein the anode clamp comprises an electric connection end, a plurality of anode hanging pieces and a positioning hole, wherein:
the electric connection end is used for connecting the anode of an electroplating power supply;
a plurality of positioning holes are arranged on the anode clamp, each positioning hole is used for fixing one end of an anode hanging piece, and the other end of the anode hanging piece extends into the working groove;
the anode clamp is fastened above the working groove.
3. The electroplating system for chromium electroplating treatment of revolving body workpieces according to claim 1, wherein the cathode electric shock clamp comprises a conductive end, a fixed mounting end and a brush holder, wherein:
the conductive end is connected with the cathode of the electroplating power supply;
the fixed mounting end is used for fixing the cathode electric shock clamp;
the electric brush fixing frames are distributed in a ring shape and used for clamping the contact cathode.
4. The electroplating system for chromium electroplating treatment of revolving body workpieces according to claim 1,
a liquid inlet pump and a liquid outlet pump are arranged between the working tank and the liquid storage tank;
an air pump is arranged between the working tank and the waste gas treatment tank.
5. An electroplating system for chromium electroplating treatment of a revolving body workpiece according to claim 1, wherein a bottom liquid outlet is arranged at the bottom of the working tank, and the working tank is communicated with the liquid storage tank and the cleaning liquid reflux liquid storage tank through the bottom liquid outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810646506.8A CN108950625B (en) | 2018-06-21 | 2018-06-21 | Electroplating system for electroplating chromium on revolving body workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810646506.8A CN108950625B (en) | 2018-06-21 | 2018-06-21 | Electroplating system for electroplating chromium on revolving body workpiece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108950625A CN108950625A (en) | 2018-12-07 |
| CN108950625B true CN108950625B (en) | 2020-02-21 |
Family
ID=64491785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810646506.8A Active CN108950625B (en) | 2018-06-21 | 2018-06-21 | Electroplating system for electroplating chromium on revolving body workpiece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108950625B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023067864A1 (en) * | 2021-10-19 | 2023-04-27 | 日立Astemo株式会社 | Rod production method and anode device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2167100Y (en) * | 1993-07-07 | 1994-06-01 | 张伟敏 | Device for turning cathode for electroplating |
| CN200964446Y (en) * | 2006-10-11 | 2007-10-24 | 比亚迪股份有限公司 | Anode for electric plating |
| CN102061496A (en) * | 2010-12-29 | 2011-05-18 | 沈阳仪表科学研究院 | Electro-deposition metallic bellows forming device |
| CN102330141A (en) * | 2011-06-30 | 2012-01-25 | 无锡出新环保设备有限公司 | Plating waste gas treatment device |
| CN103290437A (en) * | 2013-06-17 | 2013-09-11 | 中南大学 | Negative multi-DOF (Degree of Freedom) motion micro-electroforming device |
| CN203625519U (en) * | 2013-12-06 | 2014-06-04 | 东莞市常晋凹版模具有限公司 | Semicircular chromium plated anode |
| CN104005077A (en) * | 2014-05-14 | 2014-08-27 | 上海交通大学 | Electroplating device with optimized temperature field distribution and electroplating method thereof |
| CN104152977A (en) * | 2014-07-31 | 2014-11-19 | 河北昊昱机电设备研究所有限公司 | Full automatic electroplating production line |
| CN207294929U (en) * | 2017-09-20 | 2018-05-01 | 山东建筑大学 | A kind of emission-control equipment of nickel plating electroplating bath |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9121102B2 (en) * | 2012-06-26 | 2015-09-01 | Es3 | Plating apparatus |
-
2018
- 2018-06-21 CN CN201810646506.8A patent/CN108950625B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2167100Y (en) * | 1993-07-07 | 1994-06-01 | 张伟敏 | Device for turning cathode for electroplating |
| CN200964446Y (en) * | 2006-10-11 | 2007-10-24 | 比亚迪股份有限公司 | Anode for electric plating |
| CN102061496A (en) * | 2010-12-29 | 2011-05-18 | 沈阳仪表科学研究院 | Electro-deposition metallic bellows forming device |
| CN102330141A (en) * | 2011-06-30 | 2012-01-25 | 无锡出新环保设备有限公司 | Plating waste gas treatment device |
| CN103290437A (en) * | 2013-06-17 | 2013-09-11 | 中南大学 | Negative multi-DOF (Degree of Freedom) motion micro-electroforming device |
| CN203625519U (en) * | 2013-12-06 | 2014-06-04 | 东莞市常晋凹版模具有限公司 | Semicircular chromium plated anode |
| CN104005077A (en) * | 2014-05-14 | 2014-08-27 | 上海交通大学 | Electroplating device with optimized temperature field distribution and electroplating method thereof |
| CN104152977A (en) * | 2014-07-31 | 2014-11-19 | 河北昊昱机电设备研究所有限公司 | Full automatic electroplating production line |
| CN207294929U (en) * | 2017-09-20 | 2018-05-01 | 山东建筑大学 | A kind of emission-control equipment of nickel plating electroplating bath |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108950625A (en) | 2018-12-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106283166B (en) | A kind of device for being used to prepare hollow work-piece inner surface Ni SiC composite deposites | |
| US10760173B2 (en) | Ecologic method for the continuous chrome plating of bars and associated device | |
| CN108950625B (en) | Electroplating system for electroplating chromium on revolving body workpiece | |
| CN102418126B (en) | Plating apparatus and plating method | |
| US5002649A (en) | Selective stripping apparatus | |
| CN112899764A (en) | Electroplating production process and equipment thereof | |
| CN210916307U (en) | Water-saving anode device for barrel nickel plating production line | |
| JP3400780B2 (en) | Method and apparatus for performing electrochemical treatment | |
| CN214937882U (en) | Micro-arc oxidation device for inner hole surface of aluminum alloy part | |
| CN214244653U (en) | Automobile electrophoresis energy-saving device | |
| CN215404517U (en) | Panel phosphorization device | |
| CN211848099U (en) | Hot-galvanize assembly line of auto parts | |
| JP5187500B2 (en) | Surface treatment method and surface treatment apparatus for workpiece | |
| CN109183136B (en) | Anode structure for repairing large-size inner hole iron plating and application | |
| CN114045472A (en) | Novel chemical nickel plating equipment | |
| EP1575715B1 (en) | Arrangement for treating the inner surface of a metal tube | |
| JPH08319576A (en) | Electroless plating method and plating device for long-sized pipe | |
| CN214918691U (en) | Electroplating water washing device | |
| CN218435997U (en) | Steel pipe electroplating device | |
| RU2275446C2 (en) | Method of electrolytic chromium plating of the inner surfaces of the pipes and the installation for the method realization | |
| CN205590818U (en) | Side -hanging manner slab anode | |
| CN213772256U (en) | Coating machine is used in quartz chip production and processing | |
| CN212051720U (en) | Electroplating machine with constant temperature heat radiation structure | |
| CN211570809U (en) | Anti-corrosion structure of electrophoresis hanger | |
| CN108823611B (en) | Repair tool, repair device and repair method for square billet crystallizer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |