CN103526241B - Component of machine scratches reparation electric brushing coating installation and method - Google Patents
Component of machine scratches reparation electric brushing coating installation and method Download PDFInfo
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- CN103526241B CN103526241B CN201310435544.6A CN201310435544A CN103526241B CN 103526241 B CN103526241 B CN 103526241B CN 201310435544 A CN201310435544 A CN 201310435544A CN 103526241 B CN103526241 B CN 103526241B
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Abstract
The invention discloses a kind of component of machine and scratch reparation electric brushing coating installation and method.This device comprises clamping plated pen and the support of the plated pen drive unit driving it to do reciprocating linear motion, fixing plating piece and plating solution circulation supply equipment, plated pen comprises conductive stylus handle, conductive stylus handle one end tool for mounting has the graphite nib of hollow cavity, nib offers and the plating solution entrance hole of inner space, plating solution bleeding holes; Plating solution circulation supply equipment comprises container for storing liquid, and container for storing liquid liquid inlet is connected with liquid accumulating box liquid outlet, and container for storing liquid liquid outlet is connected with the plating solution entrance hole of nib, and conductive stylus handle, plating piece are connected with the positive and negative electrode of direct supply.The method comprises circulating feeding liquid, and after stable, nib is close to plating piece abraded area and is made reciprocating linear fricting movement, and conductive stylus handle, plating piece are energized, and starts Brush Plating operation.The present invention adopts feed flow in graphite plated pen, the mode of reciprocating linear friction mechanism component abraded area prepares coating, and realize repairing to abraded area, repairing effect is good.
Description
Technical field
The present invention relates to a kind of electric brushing coating installation and method, used electric brushing coating installation and method when espespecially a kind of scuffing for component of machine is repaired.
Background technology
There are a large amount of hard chrome plating component, as hydro-cylinder and piston rod etc. in the gun tube of cannon, engineering machinery in the component of machine used in the fields such as equipment.The matrix of these hard chrome plating component adopts plain steel, and is coated with one deck hard chromium on the surface of this plain steel.Hard chrome plating also claims wear-resisting chromium, and chromium coating has high hardness and low frictional coefficient, can improve its antiwear property, increase the service life after component of machine hard chrome plating.But in use, due to stressed effect or improper use, chromium-plated part can engender damage, the wearing and tearing, scuffing and gouge etc. of its damage type mainly local.
At present, all chromium coatings generally will first all grind off by the chromium-plated part for damage, and then rechroming is repaired.This restorative procedure is fairly simple, but there is following problem:
The first, the tooling cost of chromium coating is higher.Because chromium coating has very high hardness and excellent wear-resisting property, therefore cause processing chromium coating very difficult.The chromium coating of damage be removed, need to adopt diamond wheel to carry out grinding, process period is longer, and cost is higher.For the part that matrix added value is lower, the tooling cost that chromium coating is removed is more taller than buying new matrix part.
The second, cause the waste of non-damage location chromium coating.The inefficacy of major part chromium-plated part is all because local damage causes, the concentrated wear of such as coating, locally scuffing and local shedding etc., the area of the damage location of the part even had is still less than 1% (such as the scuffing on hydraulic part surface) of coating entire area.Mode according to rechroming is repaired, then on part, the intact chromium coating of major part will be worn away, and certainly will cause huge waste.
3rd, chromium plating technology is seriously polluted.In durionise process, in waste water and waste gas, sexavalent chrome can cause serious pollution to environment.At present, EPA is one of toxicant sexavalent chrome being decided to be 17 kinds of highly dangerous, and national governments also all take certain restriction to sexavalent chrome.
A few days ago, Brush Electroplating Technique is as a Surface Engineering and equipment remanufacturing technology, obtain develop rapidly in every field, it has the advantages such as plating rate is fast, coating kind is many, bonding strength is high, wide accommodation, environmental pollution are little, water and electric saving, be the powerful measure of component of machine surface reconditioning and strengthening, be particularly useful for the local route repair of component of machine.But, at present to component of machine, the particularly scuffing reparation of hard chrome plating component, what adopt is traditional-handwork Brush Plating mode mostly, which is held after graphite plated pen dips plating solution for workman, rub at the abraded area of component, there is following defect in this mode: the first, and labour intensity is large, inefficiency; The second, the mode manually dipping plating solution cannot ensure that plating solution contacts with abraded area uniform throughout, and the mode of manually friction also cannot accomplish graphite plated pen and abraded area uniform scratch everywhere, and the coating thus repaired out is unstable, of low quality.
As can be seen here, design a kind of technique and device to repair component of machine, the particularly scuffing of hard chrome plating component is current urgent problems.
Summary of the invention
A kind of component of machine is the object of the present invention is to provide to scratch reparation electric brushing coating installation and method, this electric brushing coating installation and method adopt the mode of feed flow, reciprocating linear friction mechanism component abraded area in graphite plated pen to prepare coating, realize repairing to component of machine abraded area, the coat binding strength prepared is high, compactness is strong, the wear resistance of the abraded area after reparation and solidity to corrosion good.
To achieve these goals, present invention employs following technical scheme:
A kind of component of machine scratches reparation electric brushing coating installation, it is characterized in that: it comprise be clamped with plated pen and the plated pen drive unit driving this plated pen to do reciprocating linear motion, for the support of fixing plating piece and the plating solution circulation supply equipment of circulating feeding liquid, wherein: this plated pen comprises conductive stylus handle, one end of this conductive stylus handle is provided with graphite nib, this nib has hollow cavity, this nib offers and the plating solution entrance hole of this inner space, plating solution bleeding holes; This plating solution circulation supply equipment comprises container for storing liquid, the liquid inlet of this container for storing liquid is connected with the liquid outlet of the liquid accumulating box be placed in during Brush Plating below this plating piece and this plated pen, the liquid outlet of this container for storing liquid is via peristaltic pump, strainer and being connected with the plating solution entrance hole of this nib, this peristaltic pump is connected with controller, and this conductive stylus handle, this plating piece are connected with the positive pole of direct supply, negative pole respectively; This plated pen drive unit comprises motor, the output shaft of this motor is connected with eccentric disk, this eccentric disk to be connected with slide block via cranking arm, this skid is arranged on slide rail, this slide block is connected with one end of sway brace, and the other end of this sway brace is connected with this conductive stylus handle of this plated pen via insulating clamp gripping member; This conductive stylus handle is flexibly connected with this insulating clamp gripping member, is provided with spring between the top that this conductive stylus handle is provided with and this insulating clamp gripping member; On this conductive stylus shank portion of this nib, radiator element is installed.
Described plated pen is that vertical state is arranged, and described plating piece is placed in the below of described nib, the basal surface of described nib offers described plating solution bleeding holes, the top surface of described nib offers described plating solution entrance hole.
Described nib offers the surface shape surface shape of described plating solution bleeding holes and described plating piece with abraded area suitable.
Described plating solution circulation supply equipment comprises the heating unit be placed in described container for storing liquid, and this heating unit comprises heating rod, thermoscope, and this heating rod, thermoscope are connected with described controller respectively.
A kind of component of machine realized based on described electric brushing coating installation scratches repairs electricity consumption brush plating method, it is characterized in that, it comprises the steps: step one: start described plating solution circulation supply equipment and start circulating feeding liquid, after feed flow to be recycled is stable, start described plated pen drive unit, the abraded area that described plated pen drive unit drives the described nib of described plated pen to be close to described plating piece makes reciprocating linear fricting movement; Step 2: described conductive stylus handle, described plating piece are connected with the positive pole of described direct supply, negative pole respectively; start to carry out Brush Plating operation in the plating solution that described nib and described plating piece ooze out in described nib; wherein: containing single nickel salt 260 ~ 300g in often liter of this plating solution; rose vitriol 100 ~ 110g; formic acid 15 ~ 20ml; acetic acid 45 ~ 55g, hydrochloric acid 10 ~ 20g, and for the aluminum oxide nanoparticle of improving plating solution erosion resistance and wear resistance or sodium hypophosphite.
If described plating solution circulation supply equipment is provided with heating unit, then according to technological temperature requirement, heated described plating solution by this heating unit, when described plating solution is within the scope of design temperature, described plating solution circulation supply equipment starts circulating feeding liquid.
Described in often liter of described plating solution, aluminum oxide nanoparticle is 20 ~ 30g; Described in often liter of described plating solution, sodium hypophosphite is 10 ~ 15g.
Advantage of the present invention is:
Electric brushing coating installation of the present invention and method adopt the mode of feed flow, reciprocating linear friction mechanism component abraded area in graphite plated pen to prepare coating, realize repairing to component of machine abraded area, the coat binding strength prepared is high, compactness is strong, the wear resistance of the abraded area after reparation and solidity to corrosion good.
Accompanying drawing explanation
Fig. 1 is the composition schematic diagram of electric brushing coating installation of the present invention.
Fig. 2 is the structure composition schematic diagram of plated pen drive unit.
Fig. 3 is that enlarged diagram is looked on the right side of graphite nib in Fig. 1.
Fig. 4 is the composition schematic diagram of plating solution circulation supply equipment.
Embodiment
As shown in Figures 1 to 4, component of machine of the present invention scratches reparation electric brushing coating installation and comprises and be clamped with plated pen 50 and drive the plated pen drive unit 10 that this plated pen 50 does reciprocating linear motion, for fixing plating piece 60 (namely with the component of machine scratched, negative electrode) support 70 and the plating solution circulation supply equipment 20 of circulating feeding liquid, wherein: this plated pen 50 comprises conductive stylus handle 51, one end of this conductive stylus handle 51 is provided with graphite nib (i.e. anode) 52, in conductive stylus handle 51 part of nib 52, radiator element 53 can be installed, this nib 52 has hollow cavity (not shown), this nib 52 offers the plating solution entrance hole (not marking in figure) with this inner space, plating solution bleeding holes 521, this conductive stylus handle 51 is connected with this plated pen drive unit 10, this plating solution circulation supply equipment 20 comprises container for storing liquid 22, the liquid inlet of this container for storing liquid 22 is connected via the liquid outlet of plating solution recovery tube 41 with the liquid accumulating box 40 be placed in during Brush Plating below this plating piece 60 and this plated pen 50, this liquid accumulating box 40 can be the uncovered box body placed upward, the liquid outlet of this container for storing liquid 22 is via peristaltic pump 23, strainer 24 and being connected with the plating solution entrance hole of this nib 52, the control port of this peristaltic pump 23 is connected with the corresponding controling end mouth of controller 21, this conductive stylus handle 51, this plating piece 60 respectively with the positive pole of direct supply (not shown), negative pole connects.
As Fig. 1 and Fig. 2, plated pen drive unit 10 comprises casing 11, motor (not shown) is provided with in this casing 11, the top of this casing 11 is provided with eccentric disk 12, the output shaft of this motor is connected with eccentric disk 12, and this eccentric disk 12 13 to be connected with slide block 15 via cranking arm, and this slide block 15 is slidably mounted on slide rail 14, this slide block 15 is connected with one end of sway brace 16, and the other end of this sway brace 16 is connected with the conductive stylus handle 51 of plated pen 50 via insulating clamp gripping member 19.This insulating clamp gripping member 19, for being come by the equipment blocking such as anode (nib 52) and motor, guarantees the Electrical Safety of the equipment such as motor.
In use, driven by motor eccentric disk 12 rotates, by the translational motion of the rotation motion of eccentric disk 12 in order to slide block 15, and slide rail 14 and crank arm 13 design serve the object of restriction slide block 15 linear motion range, slide block 15 is done reciprocating linear motion all the time on slide rail 14 in setting stroke range.In actual design, motor also can be provided with speed regulator (not shown).As Fig. 1, plated pen drives on the casing 11 of rotary device 10 correspondingly can be provided with start stop switch 18, speed adjustment knob 17.
It should be noted that plated pen drive unit 10 also can form structure by other, be not limited to above-mentioned.
In the present invention, plated pen 50 is a kind of interior feed flow plated pen, and the nib 52 of this plated pen 50 is a kind of hollow structure, has a hollow cavity, the surface that this nib 52 contacts with the abraded area of plating piece 60 offers plating solution bleeding holes 521, and offers plating solution entrance hole on other surfaces.As Fig. 1, plated pen 50 is arranged in vertical state, plated pen 50 is under the drive of plated pen drive unit 10, do reciprocating linear motion in horizontal plane, plating piece 60 is placed in the below of nib 52, the basal surface of nib 52 contacts with the abraded area on plating piece 60, therefore the basal surface of nib 52 offers plating solution bleeding holes 521, and the top surface of nib 52 offers plating solution entrance hole.
Plating solution entrance hole connects via the plating solution outlet of pipe-and-filter 24.Preferably, hydrops tank 30 is connected with in the plating solution exit of strainer 24, be specially, the plating solution outlet of strainer 24 is connected via the entrance of plating solution input tube 31 with hydrops tank 30, and the outlet of this hydrops tank 30 is connected with the plating solution entrance hole in nib 52 via ingress pipe 32.In use, under the effect of written 52 internal pressures, plating solution in nib 52 constantly overflows from plating solution bleeding holes 521, flows to and is positioned at below nib 52, with on the abraded area of the plating piece 60 of written 52 basal surface close contact (being tight against top), and then implement Brush Plating to abraded area.This interior feed liquid way ensure that feed flow fully and bath temperature stable, makes plating solution fully contact with abraded area, effectively extend the time for plating solution reacts, be conducive to raising quality of coating.
When actual design, conductive stylus handle 51 can be with insulating clamp gripping member 19 and is flexibly connected, and is provided with spring 55 between the top 54 that this conductive stylus handle 51 is provided with and insulating clamp gripping member 19.When actually operating, nib 52 is supported towards the abraded area of plating piece 60, spring 55 is made to be in compressed state, thus, spring 55 to nib 52 elastic thrust make nib 52 be tight against withstand on plating piece 60 abraded area on, and in the process of motion, spring 55 can make plated pen 50 keep certain pressure with the surface of abraded area all the time with on plating piece 60.Certainly, other mode also can be selected to realize being tight against top, be not limited to above-mentioned.
When actual design, nib 52 offers the surface shape surface shape of plating solution bleeding holes 521 and plating piece 60 with abraded area suitable.As Fig. 3, when plating piece is hydraulic part, because hydraulic part is cylindric, therefore, that surface that nib 52 contacts with hydraulic part should be made into the arcuation suitable with hydraulic part surface, such as, arc-shaped shown in Fig. 3.
In actual design, plating solution circulation supply equipment 20 also can comprise the heating unit 25 be placed in container for storing liquid 22, this heating unit 25 comprises heating rod, thermoscope (as temperature sensor), and the connectivity port of this heating rod, thermoscope is connected with the corresponding controling end mouth of controller 21 respectively.As Fig. 1, the shell of plating solution circulation supply equipment 20 correspondingly can be provided with temperature adjustment knob 29.
In actual design, also can be provided with the display screen 26 for showing the data messages such as Current Temperatures, the connectivity port of this display screen 26 is connected with the corresponding controling end mouth of controller 21.In practice, as Fig. 1, the shell of plating solution circulation supply equipment 20 correspondingly can be provided with cycling switch 27, revolution speed adjusting knob 28.
In the present invention, what controller 21, strainer 24, display screen 26, heating rod, support 70, insulating clamp gripping member 19 etc. were this area knows device or equipment, therefore does not here describe in detail.
Based on the invention described above electric brushing coating installation, the invention allows for a kind of component of machine and scratch reparation electricity consumption brush plating method, it comprises the steps:
Step one: press cycling switch 27, start plating solution circulation supply equipment 20, start circulating feeding liquid, plating solution is sent from plating solution circulation supply equipment 20 and is oozed out to the inner chamber of nib 52, implement plating solution supply to plating piece 60, the plating solution flowed down from plating piece 60 falls into liquid accumulating box 40 and is recycled in plating solution circulation supply equipment 20.After feed flow to be recycled is stable, press start stop switch 18, start plated pen drive unit 10, the abraded area that plated pen drive unit 10 drives the nib 52 (referring to that nib 52 is provided with the surface of plating solution bleeding holes 521) of plated pen 50 to be close to plating piece 60 makes reciprocating linear fricting movement.
Step 2: conductive stylus handle 51, plating piece 60 are connected with the positive pole of direct supply, negative pole respectively, namely opens direct supply, starts to carry out Brush Plating operation in the plating solutions that nib 52 and plating piece 60 ooze out in nib 52.
So plating solution fully activates abraded area, prepare the coating made new advances thereon.When thickness of coating reaches processing requirement thickness, just can close direct supply, plating solution circulation supply equipment 20 and plated pen drive unit 10, use washed with de-ionized water coating, polishing detects, warehousing after passing.
In the methods of the invention, plating solution adopts feed liquid way in circulation to send, be specially, by peristaltic pump 23, the plating solution in container for storing liquid 22 is sent into hydrops tank 30 by plating solution input tube 31 after filter 24 filters, save bit by bit to a certain extent at hydrops tank 30, plating solution is admitted in the inner chamber of nib 52 via ingress pipe 32, so, plating solution oozes out from plating solution bleeding holes 521, the surface making nib 52 self participate in Brush Plating operation is in feed flow environment with the plating piece 60 be arranged in below nib 52, Brush Plating operation is carried out under abundant feed flow condition, the plating solution flowed down then can fall into liquid accumulating box 40, flow back in container for storing liquid 22 by plating solution recovery tube 41, wait for and again sending.In this circulation, feed liquid way ensure that the cleanliness factor of the abundant of feed flow and plating solution, is conducive to improving quality of coating.
It should be noted that, in the methods of the invention, the priority execution sequence that startup plating solution circulation supply equipment 20, startup plated pen drive unit 10, conductive stylus handle 51 connect these three steps of direct supply positive and negative electrode with plating piece 60 is not limited to above-mentioned, these three steps can need according to actual electrical brush plating and set their execution sequence, and these three steps also can perform simultaneously in addition.
Here it should be noted that; before execution step one; first to accomplish: on plated pen drive unit 10, install plated pen 50; support 70 fixes plating piece 60; and make the abraded area close contact (being tight against top) on nib 52 basal surface of plated pen 50 and plating piece 60; adjustment eccentric disk 12, the track that plated pen 50 is moved is basic and abraded area is identical.It should be noted that, nib 52 and the abraded area close contact on plating piece 60, concrete restriction not to shrink range between it, such as shrink range can be 2-3mm, here close contact realizes by spring 55, the pressure of written 52 basal surfaces to abraded area is in a suitable pressure range, and it is well known technology that the elasticity of spring 55 supports mode, does not here describe in detail.
It should be noted that, the voltage signal that direct supply exports is high-voltage, and in the present invention, high voltage range can be set between 8V to 14V, high-tension be set as this area know technology, be not limited to above-mentioned high voltage range.
It should be noted that, in Brush Plating process, the speed of relative movement between plated pen 50 and plating piece 60 is not specifically limited, generally can be controlled between 10 ~ 20m/min.
In practice, if plating solution circulation supply equipment 20 is provided with heating unit 25, then should according to technological temperature requirement, heated by this heating unit 25 pairs of plating solutions, when plating solution is within the scope of design temperature, plating solution circulation supply equipment 20 starts circulating feeding liquid again.In the process of feed flow, if bath temperature is lower than design temperature scope, then starts heating unit 25 and heat, if be within the scope of design temperature, then stop heating.In practice, plating solution can be made to be in the temperature range of 20 ~ 40 degree, the constant temperature of plating solution is conducive to the sedimentation velocity accelerating coating, improves the quality of coating.
In reality is implemented; before the operation of execution Brush Plating; preferably; to repair the abraded area of plating piece, cover the pretreatment operation such as protection, electricity are clean, activation; what these pretreatment operation done before Brush Plating operation all belonged to this area knows technology; therefore here do not describe in detail, do not belong to the category involved by Brush Plating operation of the invention process.
For hard chrome plating component, generally when reality is implemented, pretreatment operation can comprise following step:
The abraded area of plating piece 60 is repaired, makes the width of abraded area be greater than five times of the degree of depth, make plated pen 50 can touch the bottom most position of abraded area, use insulation tape to cover protection to non-abraded area; Connect DC power anode at conductive stylus handle 51, under plating piece 60 connects the condition of DC power cathode, plated pen 50 dips the clean liquid of electricity, the matrix surface of friction abraded area, removing matrix surface greasy dirt with deionized water rinsing; DC power anode is connected, under plating piece 60 connects the condition of DC power cathode at conductive stylus handle 51, plated pen 50 dips the second activation solution, and fibrous base surface, etches carbon steel compound surface, until expose new carbon steel composition metal surface, and with deionized water rinsing; Connect DC power anode at conductive stylus handle 51, under plating piece 60 connects the condition of DC power cathode, plated pen 50 dips the 3rd activation solution, fibrous base surface, dissolves the carbon and alloying element thereof of separating out in carbon steel compound surface, and with deionized water rinsing; Connect DC power anode at conductive stylus handle 51, under plating piece 60 connects the condition of DC power cathode, plated pen 50 dips bottoming nickel plating bath, fibrous base surface, plain steel is formed and combines firmly nickel coating, and with deionized water rinsing; Burnishing matrix surface, makes hard chromium and plain steel surface become hard chromium and nickel coating complex matrix surface, and with deionized water rinsing; Connect DC power anode at conductive stylus handle 51, under plating piece 60 connects the condition of DC power cathode, plated pen 50 dips the first activation solution, fibrous base surface, fully activation hard chromium and nickel coating complex matrix surface.
Wherein, in the clean liquid of electricity, each component and concentration thereof can be set as: sodium hydroxide 20 ~ 30g/L, tertiary sodium phosphate 40 ~ 60g/L, sodium carbonate 20 ~ 25g/L and sodium-chlor 2 ~ 3g/L; In first activation solution, each component and concentration thereof can be set as: the vitriol oil 80 ~ 90g/L, ammonium sulfate 90 ~ 100g/L, phosphatase 24 ~ 6g/L and silicofluoric acid 4 ~ 6g/L; In second activation solution, each component and concentration thereof can be set as: hydrochloric acid 20 ~ 30g/L, sodium-chlor 130 ~ 150g/L; In 3rd activation solution, each component and concentration thereof can be set as: trisodium citrate 130 ~ 150g/L, citric acid 90 ~ 100g/L, nickelous chloride 2 ~ 4g/L; In bottoming nickel plating bath, each component and concentration thereof can be set as: single nickel salt 350-390g/L, nickelous chloride 15-20g/L, hydrochloric acid 20-25g/L, acetic acid 60-70g/L.
Citing: in the clean liquid of electricity, each component and concentration thereof are: sodium hydroxide 20g/L, tertiary sodium phosphate 60g/L, sodium carbonate 25g/L, sodium-chlor 2g/L; In first activation solution, each component and concentration thereof are: vitriol oil 80g/L, ammonium sulfate 100g/L, phosphatase 24 g/L, silicofluoric acid 4g/L; In second activation solution, each component and concentration thereof are: hydrochloric acid 20g/L, sodium-chlor 130g/L; In 3rd activation solution, each component and concentration thereof are: trisodium citrate 150g/L, citric acid 100g/L, nickelous chloride 2g/L; In bottoming nickel plating bath, each component and concentration thereof are: single nickel salt 380g/L, nickelous chloride 15g/L, hydrochloric acid 21g/L, acetic acid 69g/L.
For the present invention; special plating solution can be used to repair the scuffing of hard chrome plating component; be specially: containing single nickel salt 260 ~ 300g in often liter of this plating solution; rose vitriol 100 ~ 110g, formic acid 15 ~ 20ml, acetic acid 45 ~ 55g; hydrochloric acid 10 ~ 20g; according to plating piece condition to be repaired, also comprise aluminum oxide nanoparticle or sodium hypophosphite, dissolve with distilled water.
When require coating with wear-resisting be main time, the chromium-plated part of such as some engineering machinery, namely in this plating solution, aluminum oxide nanoparticle is added, aluminum oxide nanoparticle 20 ~ 30g is added in often liter of this plating solution, adopt high-energy mechanochemistry method (known technology can adopt the patent No. for method disclosed in the Chinese invention patent of 02101196.6) dispersion.Add aluminum oxide nanoparticle in this plating solution after, wear resistance and the erosion resistance of coating can be increased, and wear resistance increases outstanding simultaneously.
When require coating with corrosion-resistant be main time, more such as paddle or coastland use chromium-plated part, namely in this plating solution, add sodium hypophosphite, in often liter of this plating solution, add sodium hypophosphite 10 ~ 15g, stir dissolve.Add sodium hypophosphite in this plating solution after, wear resistance and the erosion resistance of coating can be increased, and erosion resistance increases outstanding simultaneously.
Plating solution embodiment 1:
Get single nickel salt 260g, rose vitriol 100g, formic acid 15ml, acetic acid 50g, hydrochloric acid 20g, dissolve with distilled water, then add aluminum oxide nanoparticle 20g, adopt high-energy mechanochemistry method dispersion, and with distilled water diluting to 1L.
Plating solution embodiment 2:
Get single nickel salt 300g, rose vitriol 100g, formic acid 20ml, acetic acid 45g, hydrochloric acid 10g, dissolve with distilled water, then add aluminum oxide nanoparticle 30g, adopt high-energy mechanochemistry method dispersion, and with distilled water diluting to 1L.
Plating solution embodiment 3:
Get single nickel salt 280g, rose vitriol 110g, formic acid 15ml, acetic acid 45g, hydrochloric acid 15g, dissolve with distilled water, then add aluminum oxide nanoparticle 20g, adopt high-energy mechanochemistry method dispersion, and with distilled water diluting to 1L.
Plating solution embodiment 4:
Get single nickel salt 300g, rose vitriol 110g, formic acid 16ml, acetic acid 50g, hydrochloric acid 15g, sodium hypophosphite 10g, is dissolved to 1L with distilled water.
Plating solution embodiment 5:
Get single nickel salt 260g, rose vitriol 110g, formic acid 15ml, acetic acid 55g, hydrochloric acid 10g, sodium hypophosphite 14g, is dissolved to 1L with distilled water.
Plating solution embodiment 6:
Get single nickel salt 270g, rose vitriol 100g, formic acid 20ml, acetic acid 45g, hydrochloric acid 15g, sodium hypophosphite 15g, is dissolved to 1L with distilled water.
Contrast between the hard chromium that the nickel-base alloy coating prepared below by plating solution embodiment 1,4 and existing Brush Electroplating Technique are prepared, is described further plating solution.When it should be noted that Brush Plating, processing parameter is: volts DS 8 ~ 14V, bath temperature 20 ~ 40 degree, speed of relative movement 10 ~ 15m/min between plated pen and plating piece.
Table 1
As can be seen from upper table 1, the nickel-base alloy coating prepared after utilizing this special plating solution to carry out Brush Plating has following advantages: sedimentation velocity is accelerated greatly, and coating crystallization is careful, and smooth finish is higher, and surfaceness obviously declines, and hardness obviously strengthens; Quality of coating is stablized, with the strong adhesion of matrix; Wear resistance and the solidity to corrosion of coating are all better than hard chromium.In addition, not containing the hexavalent chromium of severe toxicity in special plating solution, without obvious irritating smell, for operator provides good Working environment.
Advantage of the present invention is:
1, compared with traditional-handwork Brush Plating mode, traditional-handwork Brush Plating mode dips plating solution for manual, and labour intensity is large, inefficiency.And in the present invention, plating solution is supplied by plating solution circulation supply equipment, strainer is designed with in plating solution circulation supply equipment, ensure that purity and the degree of cleaning of plating solution, ensure that the abundant of feed flow, ensure that abraded area all can contact with plating solution in real time everywhere, and constantly can take away the heat that Brush Plating process produces, make plating solution keep constant temperature, thus accelerate the sedimentation velocity of coating, improve the quality of coating.
2, compared with traditional-handwork Brush Plating mode, the present invention adopts the mode of plated pen reciprocating linear friction mechanism component abraded area to carry out Brush Plating reparation, this linear reciprocation friction mode is movement locus substantially with abraded area, achieve abraded area (genus part) real-time reparation from the beginning to the end, improve working efficiency, shorten repair time, the sedimentation velocity of coating that clearly makes of repairing object is accelerated, and quality of coating improves.
3, plated pen of the present invention adopts interior feed liquid way, and this mode ensure that the abundant and stable of feed flow, ensure that the constant temperature of plating solution, effectively improves the quality of coating.
4, compared with the hand-held plated pen of traditional-handwork Brush Plating mode, the present invention is full-automatic repair process, and labour intensity is little, and tooling cost is low, and in repair process, the friction everywhere of plated pen and abraded area is even, ensure that the steady quality of coating.
5, compared with heating before using with the plating solution of traditional-handwork Brush Plating mode, traditional-handwork Brush Plating mode is difficult to the constant temperature keeping plating solution, and the present invention is in repair process, by the heating unit Real-Time Monitoring bath temperature in plating solution circulation supply equipment, when bath temperature is lower than processing requirement temperature, namely heating unit heats plating solution, ensure that the constant temperature of plating solution, thus improves the quality of coating.
6, the present invention only repairs for abraded area, and non-abraded area and matrix can not be affected, and therefore can not cause unnecessary coating waste, the particularly waste of hard chromium.
7, the special plating solution in the present invention is specially adapted to the scuffing reparation of hard chrome plating component, this plating solution fully can activate hard chromium and the plain steel of abraded area, accelerate coating deposition rate, the nickel-base alloy coating bonding strength prepared is high, compactness is strong, the wear resistance of the abraded area after reparation and solidity to corrosion good.
It should be noted that, the present invention be directed to the improvement of traditional-handwork Brush Plating, the scuffing reparation of component of machine is needed to the Brush Plating mode of this " the non-steeped formula " that use the present invention or above-mentioned traditional-handwork Brush Electroplating Technique, " non-steeped formula " and " immersion type " belong to two kinds of different Brush Plating modes completely.Such as, number of patent application is 201310071554.6, denomination of invention for Brush Plating mode disclosed in the Chinese invention patent application of " flat-type metallic element electric brushing coating installation " be the Brush Plating mode of a kind of " immersion type ", component of machine will be in always be loaded with in the brush coating bath of plating solution, it can not be used for component of machine, particularly the scuffing reparation of hard chrome plating component.
The above know-why being preferred embodiment of the present invention and using; for a person skilled in the art; when not deviating from the spirit and scope of the present invention; any based on apparent changes such as the equivalent transformation on technical solution of the present invention basis, simple replacements, all belong within scope.
Claims (7)
1. a component of machine scratches reparation electric brushing coating installation, it is characterized in that: it comprise be clamped with plated pen and the plated pen drive unit driving this plated pen to do reciprocating linear motion, for the support of fixing plating piece and the plating solution circulation supply equipment of circulating feeding liquid, wherein: this plated pen comprises conductive stylus handle, one end of this conductive stylus handle is provided with graphite nib, this nib has hollow cavity, this nib offers and the plating solution entrance hole of this inner space, plating solution bleeding holes; This plating solution circulation supply equipment comprises container for storing liquid, the liquid inlet of this container for storing liquid is connected with the liquid outlet of the liquid accumulating box be placed in during Brush Plating below this plating piece and this plated pen, the liquid outlet of this container for storing liquid is via peristaltic pump, strainer and being connected with the plating solution entrance hole of this nib, this peristaltic pump is connected with controller, and this conductive stylus handle, this plating piece are connected with the positive pole of direct supply, negative pole respectively; This plated pen drive unit comprises motor, the output shaft of this motor is connected with eccentric disk, this eccentric disk to be connected with slide block via cranking arm, this skid is arranged on slide rail, this slide block is connected with one end of sway brace, and the other end of this sway brace is connected with this conductive stylus handle of this plated pen via insulating clamp gripping member; This conductive stylus handle is flexibly connected with this insulating clamp gripping member, is provided with spring between the top that this conductive stylus handle is provided with and this insulating clamp gripping member; On this conductive stylus shank portion of this nib, radiator element is installed.
2. electric brushing coating installation as claimed in claim 1, is characterized in that:
Described plated pen is that vertical state is arranged, and described plating piece is placed in the below of described nib, the basal surface of described nib offers described plating solution bleeding holes, the top surface of described nib offers described plating solution entrance hole.
3. electric brushing coating installation as claimed in claim 1 or 2, is characterized in that:
Described nib offers the surface shape surface shape of described plating solution bleeding holes and described plating piece with abraded area suitable.
4. electric brushing coating installation as claimed in claim 1 or 2, is characterized in that:
Described plating solution circulation supply equipment comprises the heating unit be placed in described container for storing liquid, and this heating unit comprises heating rod, thermoscope, and this heating rod, thermoscope are connected with described controller respectively.
5. the component of machine realized based on the electric brushing coating installation according to any one of claims 1 to 3 scratches repairs an electricity consumption brush plating method, and it is characterized in that, it comprises the steps:
Step one: start described plating solution circulation supply equipment and start circulating feeding liquid, after feed flow to be recycled is stable, start described plated pen drive unit, the abraded area that described plated pen drive unit drives the described nib of described plated pen to be close to described plating piece makes reciprocating linear fricting movement;
Step 2: described conductive stylus handle, described plating piece are connected with the positive pole of described direct supply, negative pole respectively; start to carry out Brush Plating operation in the plating solution that described nib and described plating piece ooze out in described nib; wherein: containing single nickel salt 260 ~ 300g in often liter of this plating solution; rose vitriol 100 ~ 110g; formic acid 15 ~ 20m1; acetic acid 45 ~ 55g, hydrochloric acid 10 ~ 20g, and for the aluminum oxide nanoparticle of improving plating solution erosion resistance and wear resistance or sodium hypophosphite.
6. Brush Plating method as claimed in claim 5, is characterized in that:
If described plating solution circulation supply equipment is provided with heating unit, then according to technological temperature requirement, heated described plating solution by this heating unit, when described plating solution is within the scope of design temperature, described plating solution circulation supply equipment starts circulating feeding liquid.
7. Brush Plating method as claimed in claim 5, is characterized in that:
Described in often liter of described plating solution, aluminum oxide nanoparticle is 20 ~ 30g;
Described in often liter of described plating solution, sodium hypophosphite is 10 ~ 15g.
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| CN201310435544.6A CN103526241B (en) | 2013-09-23 | 2013-09-23 | Component of machine scratches reparation electric brushing coating installation and method |
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| CN201310435544.6A CN103526241B (en) | 2013-09-23 | 2013-09-23 | Component of machine scratches reparation electric brushing coating installation and method |
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| CN103526241A CN103526241A (en) | 2014-01-22 |
| CN103526241B true CN103526241B (en) | 2016-04-13 |
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| CN112144085B (en) * | 2020-10-20 | 2022-05-06 | 山东中安电力科技有限公司 | Mechanical electric brush silver plating method and device based on multi-parameter control |
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