CN106222729A - Drill bit supercritical composite electroplating processing method based on moving anode - Google Patents
Drill bit supercritical composite electroplating processing method based on moving anode Download PDFInfo
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- CN106222729A CN106222729A CN201610587719.9A CN201610587719A CN106222729A CN 106222729 A CN106222729 A CN 106222729A CN 201610587719 A CN201610587719 A CN 201610587719A CN 106222729 A CN106222729 A CN 106222729A
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- drill bit
- anode
- mobile
- mobile anode
- supercritical
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- 239000002131 composite material Substances 0.000 title claims abstract description 24
- 238000009713 electroplating Methods 0.000 title abstract description 9
- 238000003672 processing method Methods 0.000 title description 2
- 238000000034 method Methods 0.000 claims abstract description 26
- 238000004070 electrodeposition Methods 0.000 claims abstract description 17
- 239000002114 nanocomposite Substances 0.000 claims abstract description 15
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 36
- 238000007747 plating Methods 0.000 claims description 29
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 22
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 20
- 238000000429 assembly Methods 0.000 claims description 20
- 230000000712 assembly Effects 0.000 claims description 20
- 239000001569 carbon dioxide Substances 0.000 claims description 18
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 14
- 229910052802 copper Inorganic materials 0.000 claims description 14
- 239000010949 copper Substances 0.000 claims description 14
- 239000002105 nanoparticle Substances 0.000 claims description 14
- 238000012545 processing Methods 0.000 claims description 14
- 238000003756 stirring Methods 0.000 claims description 14
- 239000011159 matrix material Substances 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000000654 additive Substances 0.000 claims description 10
- 230000000996 additive effect Effects 0.000 claims description 10
- 150000001875 compounds Chemical class 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 229910052759 nickel Inorganic materials 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 9
- -1 ether compound Chemical class 0.000 claims description 8
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 6
- 239000004327 boric acid Substances 0.000 claims description 6
- 230000033001 locomotion Effects 0.000 claims description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 5
- 150000002815 nickel Chemical class 0.000 claims description 5
- QMMRZOWCJAIUJA-UHFFFAOYSA-L nickel dichloride Chemical compound Cl[Ni]Cl QMMRZOWCJAIUJA-UHFFFAOYSA-L 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 239000010432 diamond Substances 0.000 claims description 4
- 229910003460 diamond Inorganic materials 0.000 claims description 4
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 229910052717 sulfur Inorganic materials 0.000 claims description 3
- 239000011593 sulfur Substances 0.000 claims description 3
- 229910002056 binary alloy Inorganic materials 0.000 claims description 2
- 230000033228 biological regulation Effects 0.000 claims description 2
- 239000000839 emulsion Substances 0.000 claims description 2
- 238000012805 post-processing Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 14
- 239000011248 coating agent Substances 0.000 abstract description 4
- 238000000576 coating method Methods 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000004140 cleaning Methods 0.000 abstract 1
- 238000010907 mechanical stirring Methods 0.000 abstract 1
- 239000002103 nanocoating Substances 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- 239000004094 surface-active agent Substances 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 14
- 238000005323 electroforming Methods 0.000 description 11
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 238000009413 insulation Methods 0.000 description 6
- 239000002113 nanodiamond Substances 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 239000008187 granular material Substances 0.000 description 5
- 239000002202 Polyethylene glycol Substances 0.000 description 4
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 4
- 229920006351 engineering plastic Polymers 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 229920001223 polyethylene glycol Polymers 0.000 description 4
- 239000004141 Sodium laurylsulphate Substances 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- 239000012266 salt solution Substances 0.000 description 3
- 235000019333 sodium laurylsulphate Nutrition 0.000 description 3
- 238000005054 agglomeration Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- LGQLOGILCSXPEA-UHFFFAOYSA-L nickel sulfate Chemical compound [Ni+2].[O-]S([O-])(=O)=O LGQLOGILCSXPEA-UHFFFAOYSA-L 0.000 description 2
- 229910000363 nickel(II) sulfate Inorganic materials 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 229910000997 High-speed steel Inorganic materials 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 238000002048 anodisation reaction Methods 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910001453 nickel ion Inorganic materials 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D15/00—Electrolytic or electrophoretic production of coatings containing embedded materials, e.g. particles, whiskers, wires
-
- 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
- C25D21/10—Agitating of electrolytes; Moving of racks
-
- 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
- C25D3/12—Electroplating: Baths therefor from solutions of nickel or cobalt
-
- 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
- C25D5/003—Electroplating using gases, e.g. pressure influence
-
- 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
- C25D5/04—Electroplating with moving electrodes
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D7/00—Electroplating characterised by the article coated
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
The invention provides a supercritical composite electroplating tool based on a mobile anodeThe method with the drill bit mainly comprises the following steps: pretreating a base material of the drill to enable the base material to have the capacity of electrodepositing a nano composite coating; adding prepared electroplating solution into the reactor, sealing, and introducing CO2Adding a surfactant into the gas to form an electroplating system under a supercritical condition; setting parameters such as current, temperature, mechanical stirring speed and the like which meet the requirements of electrodeposition; adjusting the relative position between the cathode and the anode, setting the moving speed and the stroke of the anode, and switching on a power supply to ensure that the nano composite coating can be perfectly deposited on the surface of a drill bit to be processed as a cathode main body; and taking down the drill bit after electrodeposition and cleaning to obtain the drill bit with the high-performance composite nano-coating on the surface. The drill bit prepared by the method has the advantages of fine surface texture, greatly improved wear resistance and hardness, and prolonged service life.
Description
The application is Application No. 201410412652.6, filing date on August 20th, 2014, and invention and created name is
The divisional application of the application for a patent for invention of " method of supercritical composite plating processing drill based on mobile anode ".
Technical field
The present invention relates to electrochemical deposition processing technique field, be specifically related to a kind of supercritical based on mobile anode and be combined
The method of plating processing drill.
Background technology
Supercritical fluid (Supercritical Fluid) refers to that pure material is in critical point (critical pressure and critical
Temperature) more than time, showed is a kind of between liquid with the fluid of gaseous state.At Near The Critical Point, supercritical fluid close
There is phenomenon jumpy in the physical property of all fluids such as degree, viscosity, dissolubility, thermal capacity, dielectric constant.CO2Gas has
Environmental protection, do not fire, nontoxic, inertia, deposit be abundant and critical pressure (7.39MPa) and temperature (31.1 DEG C) less advantages of higher, because of
This supercritical CO2Fluid is widely used.Due to supercritical CO2There is relatively low viscosity (0.03-0.1 MPa s) and higher
Diffusion coefficient (10- 4 cm2·s-1), good condition can be provided for mass transfer in electroforming system.
The moulding material of industry drill bit often uses titanium alloy, diamond or Special steel material etc., these materials at present
Get up complex process, high expensive and performance of the drill bit preparation of material is the most excellent, and uses the nano composite material can be preferably
Make up these shortcomings.Industry drill bit often uses high-speed steel and special steel etc. as matrix material, and this matrix material is generally difficult to
Directly carry out electrochemical deposition processing, and after using the method for chemical plating that matrix material is carried out pretreatment, then make at this base
Carry out nano compound electroplating on body to be possibly realized.When uniformly nano-particle is compounded in metal matrix material, nano-particle exists
The reunion occurred during electroforming and the poor problem of macro-uniformity are the most prominent.Mostly use stirring, Under Ultrasonic Vibration at present
The modes such as dynamic, interpolation dispersant process the agglomeration of nano-particle, but because grand master pattern (metal parts) is different, during plating
Electric field, flow field uniformity are wayward, still can cause nanoparticle agglomerates and skewness in nano composite electroforming deposit.Receive
The reunion of rice grain and skewness will cause the cast layer mechanical property difference of different parts huge, have a strong impact on it and use
Performance.
At present, under supercritical environment, the process of electrodeposited nanocrystalline composite and micro-workpiece and device be
There is finding.Chinese patent literature if Authorization Notice No. is CN 101092716B discloses a kind of trickle plating of supercritical fluid
Moulding process and device thereof, it is with SCF-CO2The molding of micro-structure part is carried out, by the gold of the method gained for plating environment
Belong to electrodeposited coating surface depositing homogeneous, without buildup, and cast layer tissue is fine and closely woven smooth, but gained cast layer is single metal, is not suitable for
Composite plating molding containing nano-particle；And for example publication No. is that the Chinese patent literature of CN 102146573A proposes one
The method of preparing nano composite material by supercritical fluid electroforming, it is mainly electro-deposition system under mechanical agitation subsidiary conditions
Standby metal-base nanometer composite material, Electric Field Distribution is fixing, from the point of view of its parameter is arranged and anode and cathode is arranged, it is impossible to column
Or tubulose class negative electrode effectively deposits nano-composite plate.
Summary of the invention
It is an object of the invention to: control nano-particle agglomeration in electroplating process, for negative electrode drill bit in plating
During can not be coated with nano composite material well, use supercritical composite plating method based on the mobile anode of coupling,
Make composite deposite can become to be uniformly dispersed in negative electrode bit face, surfacing, dense structure, crystal grain is tiny, performance is excellent
Different.
The technical scheme is that the side of the supercritical composite plating processing drill based on mobile anode of the present invention
Method, uses supercritical composite plating device based on mobile anode to implement, should supercritical composite plating dress based on mobile anode
Put and include reactor, DC source assembly, mechanical agitator, carbon dioxide steel cylinder and high-pressure pump；DC source assembly bag
Include power supply, anode stub and cathode bar；It is characterized in: above-mentioned supercritical composite plating device based on mobile anode also includes moving
Dynamic anode assemblies, driving assembly and the processed drill bit as cathode body；
Above-mentioned mobile anode assemblies includes fixed connecting plate and mobile anode；Mobile anode is fixing with fixed connecting plate to be connected；
Assembly is driven to include servomotor, drive leading screw and connecting rod；Leading screw is driven to be built-in with the elastic conduction coil being insulated from；Watch
Take motor and be connected with driving lead screw transmission；The left end of connecting rod is fixing with fixed connecting plate to be connected；The right-hand member of connecting rod and driving
Leading screw is fixing to be connected；Mobile anode is by the built-in elastic conduction coil of fixed connecting plate, connecting rod, driving leading screw and anode
Rod is connected with the positive electrical of power supply；The upper end of processed drill bit is fixing with the lower end of cathode bar to be connected and by cathode bar and power supply
Negative electricity connect；The mobile anode of above-mentioned mobile anode assemblies, can the most processed drill bit under the driving driving assembly
Upward and downward moves back and forth；
The mobile anode of above-mentioned mobile anode assemblies is provided with 4；These 4 mobile anodes are fixedly installed on the four of fixed connecting plate
Individual corner；Processed drill bit is provided with 4, and these 4 processed drill bits are the most corresponding with 4 mobile anodes respectively arranges 1；
The cylindric pure nickel thin-walled ring that above-mentioned mobile anode is high 2cm, diameter 3cm, thickness are 2mm；Outside processed drill bit
Distance between the inwall of wall and mobile anode is 1cm.
The method of processing drill, comprises the following steps:
1. the matrix to processed drill bit carries out chemical plating process in advance, and the matrix surface at processed drill bit plates last layer and is prone to
Carry out fine copper or the pure nickel of electro-deposition；
2. the binary system electroplate liquid containing nanometer hard particles and compound additive configured is added in reactor, fixing work
Processed drill bit for cathode body；The position of the mobile anode of the mobile anode assemblies of regulation makes to move anode can be relative to quilt
Processing drill moves up and down；Above-mentioned electroplate liquid is the nickel salt solution of sulfur acid nickel and Nickel dichloride.；Nanometer hard particles is diameter
The diamond nano-particles of 30～60nm；Compound additive is the interpolation being made up of dodecyl compounds and ether compound
Agent；Above-mentioned electroplate liquid also includes the boric acid as electro-deposition slow releasing agent that concentration is 30g/L～60g/L；
3. in reactor, be passed through carbon dioxide, control temperature in reactor 35～70 DEG C, pressure is 8～20MPa
In the range of, form the ternary plating system with supercritical carbon dioxide emulsion as carrier；
4. set mobile anode and move up and down maximum single direction stroke as 5cm relative to the processed drill bit as cathode body；Adopt
With at the uniform velocity or the move mode of simple harmonic motion, average speed controls at 1-20mm/s；Electrodeposition time is 1-3 hour；At machinery
Nano-composite plate is obtained under the stirring auxiliary of agitator；
5. electro-deposition is complete, by post processing, obtains the drill bit with nano-composite plate of desired properties requirement.
Further scheme is: the reactor of above-mentioned supercritical composite plating device based on mobile anode includes main body
And liner；Liner is located on the internal perisporium of main body；It is provided with air inlet on the left of the upper end of the main body of reactor；The main body of reactor
Leakage fluid dram it is provided with on the right side of upper end；The body interior of reactor is provided with heating coil；Mechanical agitator is arranged in reactor；Machinery
Agitator employing level works to intermittent stirring mode；High-pressure pump is for by the carbon dioxide of storage in carbon dioxide steel cylinder
Gas takes out pressure by the air inlet of the main body of reactor in main body；
The fixed connecting plate of above-mentioned mobile anode assemblies is the plate body part that entirety is square, and four corners of fixed connecting plate set
There is the breach of arc；Fixed connecting plate be by carrying out insulation outside copper frame structure, high pressure resistant, acidproof engineering plastics are made；Move
Dynamic anode is metallic conductor part；On the arc notch in four corners that mobile anode is fixedly installed on fixed connecting plate and with fixing
The copper frame structure electrical connection of connecting plate；
The leading screw that drives driving assembly is the leading screw of hollow；Above-mentioned elastic conduction coil is arranged on the hollow part driving leading screw
In；And the lower end of this elastic conduction coil stretch out drive leading screw left side；Driving leading screw is stretched out in the upper end of this elastic conduction coil
Upper end；This elastic conduction coil is insulated by insulation spacer with driving leading screw；Leading screw is driven to be passed with servomotor by its underpart
It is dynamically connected；Above-mentioned connecting rod by carrying out insulation outside copper post, high pressure resistant, acidproof engineering plastics are made.
Further scheme is: the concentration of above-mentioned nickel salt solution is 300～450g/L；The concentration of Nano diamond granule
It is 1～20g/L；The concentration of compound additive is 0.1～2g/L.
Further scheme is: the electric current density of the power supply output of above-mentioned DC source assembly is 7A/dm2；Above-mentioned
Mechanical agitator is arranged in reactor；Mechanical agitator level is to intermittent stirring, and stir speed (S.S.) is 200～500rpm.
Further scheme also has: above-mentioned compound additive is by sodium lauryl sulphate and Polyethylene Glycol trimethyl nonyl
Base ether；The concentration of sodium lauryl sulphate is 0.2g/L, and the concentration of Polyethylene Glycol trimethyl nonyl ethers is 0.8g/L.
The present invention has positive effect: (1) present invention is by using mobile anodization method, as cathode body
Processed drill bit ensure that each to uniformity of its surface when plating so that be electrodeposited on processed drill bit is nano combined
Coating can be smooth, uniform；Use level to intermittent stirring mode simultaneously, so make nano-particle have sedimentation in electroplating solution
Trend, further improves the uniformity during nano combined electroforming and concordance.(2) present invention can be at non-smooth metal
The nano-composite plate of excellent performance is formed on piece surface.(3) present invention can be according to the demand of use, by nano-particle
Process, use different nanometer hard materials to form the nano-composite plate of different performance on metal parts.(4) present invention
Multiple processed drill bits as cathode body can be carried out supercritical nano compound electroplating, it is possible to efficiently, prepare in batches simultaneously
Go out the drill bit of the nano composite material of excellent performance.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of electrotyping forming device of the present invention；
Fig. 2 is the structural representation of mobile anode in Fig. 1, also show processed with as cathode body of mobile anode in figure
The position matching of drill bit.
Reference in above-mentioned accompanying drawing is as follows:
Reactor 1, main body 11, air inlet 11-1, leakage fluid dram 11-2, heat coil 11-3, liner 12；
Mobile anode assemblies 2, fixed connecting plate 21, mobile anode 22；
Drive assembly 3, servomotor 31；Drive leading screw 32, connecting rod 33；
DC source assembly 4, power supply 41, anode stub 42, cathode bar 43；
Mechanical agitator 5；
Carbon dioxide steel cylinder 6；
High-pressure pump 7,
Processed drill bit 8.
Detailed description of the invention
The present invention is further detailed explanation with detailed description of the invention below in conjunction with the accompanying drawings.
(embodiment 1)
See Fig. 1 and Fig. 2, the supercritical composite plating processing drill method based on mobile anode of the present embodiment, use based on shifting
The supercritical composite plating device of dynamic anode is implemented, supercritical composite plating device based on mobile anode mainly by reactor 1,
Mobile anode assemblies 2, driving assembly 3, DC source 4, mechanical agitator 5, carbon dioxide steel cylinder 6 and high-pressure pump 7 form.
Reactor 1 is mainly made up of main body 11 and liner 12.It is provided with air inlet on the left of the upper end of the main body 11 of reactor 1
11-1；Leakage fluid dram 11-2 it is provided with on the right side of the upper end of reactor 1；The main body 11 of reactor 1 is internal is provided with heating coil 11-3.Liner
On 12 internal perisporiums being located at main body 11.
Mobile anode assemblies 2 is made up of fixed connecting plate 21 and mobile anode 22.Fixed connecting plate 21 is square for entirety
Plate body part, four corners of fixed connecting plate 21 are provided with the breach of arc.Fixed connecting plate 21 be by copper frame structure outside
Carry out insulation, high pressure resistant, acidproof engineering plastics are made.Mobile 22, anode preferably employs high 2cm, diameter 3cm, thickness in implementing
Cylindric pure nickel thin-walled ring for 2mm；Preferably employing 4 in mobile anode 22 the present embodiment, these 4 mobile anodes 22 are fixed and are set
Put on the arc notch in four corners of fixed connecting plate 21 and electrically connect with the copper frame structure of fixed connecting plate 21.
Assembly 3 is driven mainly to include servomotor 31, drive leading screw 32 and connecting rod 33.In servomotor 31 the present embodiment
Preferably employ the DC servo motor that model is KT290-A6-50.Driving leading screw 32 is the leading screw of hollow, drives in leading screw 32
Empty position is built-in with elastic conduction coil；The left side driving leading screw 32 is stretched out in the lower end of this elastic conduction coil；This elastic conduction
The upper end driving leading screw 32 is stretched out in the upper end of coil；And this elastic conduction coil is insulated by insulation spacer with driving leading screw 32；
Leading screw 32 is driven to be in transmission connection with servomotor 31 by its underpart.Connecting rod 33 is by carrying out insulation, high pressure resistant, acidproof work outside copper post
Engineering plastics is made.The right-hand member of connecting rod 33 is fixing with driving leading screw 32 to be connected；And connecting rod 33 is by the right-hand member of its internal copper post
Electrically connect with the lower end of the elastic conduction coil in driving leading screw 32；The left end of connecting rod 33 is fixing with mobile anode assemblies 2
The right side central of connecting plate 21 is fixing to be connected；And the copper of the left end that connecting rod 33 is by its internal copper post and fixed connecting plate 21
Frame structure electrically connects.
DC source assembly 4 is made up of power supply 41, anode stub 42 and cathode bar 43.The upper end of anode stub 42 and power supply 41
Positive electrical connects, and the lower end of anode stub 42 electrically connects with the upper end of the elastic conduction coil in the driving leading screw 32 driving assembly 3；
Thus tied by the elastic conduction coil in anode stub 42, driving leading screw 32, connecting rod 33, the copper framework of fixed connecting plate 21
Mobile anode 22 is connected by structure with the positive electrical of power supply 41.The upper end of cathode bar 43 is connected with the negative electricity of power supply 41, processed
The upper end of drill bit 8 is all fixing with the lower end of cathode bar 43 to be electrically connected.Processed drill bit 8 is as cathode body.Processed drill bit 8 sets
On axis in the mobile anode 22 of mobile anode assemblies 2；And the inwall of the outer wall of processed drill bit 8 and mobile anode 22
Between distance be 1cm.
Mechanical agitator 5 is arranged in reactor 1；Mechanical agitator 5 uses level to work to intermittent stirring mode, so that
Obtain nano-particle in electroplating solution, have Subsidence trend, improve the uniformity during nano combined electroforming and concordance.Machinery
Stirring horizontal direction intermittent stirring, stir speed (S.S.) is 200～500rpm.
Carbon dioxide steel cylinder 6 is used for storing carbon dioxide.
High-pressure pump 7 is for by the carbon dioxide of the storage main body 11 by reactor 1 in carbon dioxide steel cylinder 6
Air inlet 11-1 in main body 11, take out pressure.
The mobile anode 22 of aforesaid mobile anode assemblies 2, under the driving driving assembly 3, surrounds processed drill bit 8 and enters
The motion of row upward and downward；In the present embodiment, the maximum single direction stroke of the mobile the most processed drill bit of anode 22 8 is 5cm；Use even
Speed or the move mode of simple harmonic motion, average speed controls at 1-20mm/s.
The supercritical composite plating processing drill method based on mobile anode of the present embodiment, with Ni-based benefit processing drill 8
Illustrating as a example by electro-deposition Nano diamond composite, its processing method mainly comprises the steps that
1. the matrix to processed drill bit 8 carries out chemical plating process in advance, and it is easy that the matrix surface at processed drill bit 8 plates last layer
In the metal carrying out electro-deposition；This metal may select fine copper or pure nickel.In the present embodiment, it is preferred to use at processed drill bit 8
Matrix surface plates the uniform copper layer of about 10 μ m-thick.
2. in the reactor 1 of the supercritical composite plating device based on mobile anode of the present embodiment, nickel salt is added molten
Liquid, boric acid, Nano diamond granule and compound additive, stir 30 minutes so that it is be sufficiently mixed and nano-particle uniformly divides
Dissipate.Boric acid, as electro-deposition slow releasing agent, is optionally added, and the concentration of boric acid is 30g/L～60g/L.
Nickel salt solution is the solution of sulfur acid nickel and Nickel dichloride.；Wherein nickel sulfate consumption is 300～400g/L, and Nickel dichloride. is used
Amount is 30～50g/L；Diamond nano-particles, a diameter of 30～60nm, its consumption is 5～15g/L；Described compound additive
Forming for dodecyl compounds and ether compound, wherein dodecyl compounds consumption is 0.1～2g/L, ethers
Compound consumption is 0.1～1g/L.
In the present embodiment, additive preferably employs sodium lauryl sulphate and Polyethylene Glycol trimethyl nonyl ethers.Each material
Concentration be preferably: nickel sulfate 300g/L, Nickel dichloride. 35g/L, boric acid 40g/L, Nano diamond granule 15g/L, dodecyl
Sodium sulfate 0.2g/L, Polyethylene Glycol trimethyl nonyl ethers 0.8g/L.
3. high-pressure pump 7 is started, by the carbon dioxide in carbon dioxide steel cylinder 6 from the main body 11 of reactor 1
Air inlet 11-1 takes out in the main body 11 being pressed onto reactor；Control pressure is 13MPa；Make alternating current pass through adding of main body 11 simultaneously
Heat coil 11-3 heats under the effect of electromagnetic induction, is incited somebody to action by the control of the size of the current intensity to alternating current
Temperature controls at 35～70 DEG C, in the present embodiment preferably 50 DEG C, under above-mentioned pressure and temperature, is carried out by mechanical agitator 5
Stir and form the supercritical fluid electroforming solution containing Nano diamond granule.In the present embodiment, carbon dioxide is close
Test pressure in the main body 11 of the reactor 1 closed is 8～20MPa.
4. the upper end of the processed drill bit 8 as cathode body is solid with the lower end of the cathode bar 43 of DC source assembly 4
Fixed electrical connection；The upper end of the cathode bar 43 of DC source assembly 4 is electrically connected with the negative electrode of the power supply 41 of DC source assembly 4；
The upper end of the anode stub 42 of DC source assembly 4 is electrically connected with the anode of power supply 41；By the lower end of anode stub 42 and driving group
The driving leading screw 32 of part 3 is fixing to be connected；It is in transmission connection driving leading screw 32 with the servomotor 31 driving assembly 3；Group will be driven
The connecting rod 33 of part 3 is fixing with the fixed connecting plate 21 of mobile anode assemblies 2 to be connected；Processed drill bit 8 is located at mobile anode unit
On axis in the mobile anode 22 of part 2；And make the distance between the outer wall of processed drill bit 8 and the inwall of mobile anode 22
For 1cm；
The electric current density of power supply 41 output arranging DC source assembly 4 is 1～13A/dm-2, the present embodiment preferably employs
7A/dm2；The maximum single direction stroke of the most processed drill bit of mobile anode 22 8 arranging mobile anode assemblies 2 is 5cm；Movement side
Formula uses at the uniform velocity or simple harmonic motion, and average speed controls 1～20mm/s, so that Electric Field Distribution is more uniform during electroforming.
5. start the servomotor 31 driving assembly 3, control the mobile anode 21 of mobile anode assemblies 2 according to the ginseng set
Number moves up and down；Mechanical agitator 5 synchronizes employing level to intermittent stirring；Connect the power supply 41 of DC source assembly 4；Make
Obtain nickel ion to deposit to quickly and efficiently as on the processed drill bit 8 of cathode body with Nano diamond granule.The present embodiment
In, electrodeposition time is 1～3 hour.
6., after electroforming, by the leakage fluid dram 11-2 in the main body 11 of reactor 1, supercritical fluid electroforming solution is led
Entering in gas-liquid separator, the carbon dioxide of separation and electroforming solution are separately recovered in retracting device and recycle.
7. processed drill bit 8 is taken out from reactor 1, air-dry again clean by pickling by washing, i.e. obtain and quilt
The nano-particle that the matrix of processing drill 8 is combined closely is evenly distributed, dense structure, crystal grain are tiny, surfacing, excellent performance
Nano composite material electroformed layer.
Above example is the explanation of the detailed description of the invention to the present invention, rather than limitation of the present invention, relevant technology
The technical staff in field is without departing from the spirit and scope of the present invention, it is also possible to makes various conversion and change and obtains
To the technical scheme of corresponding equivalent, the technical scheme of the most all equivalents all should be included into the patent protection model of the present invention
Enclose.
Claims (1)
1. a supercritical composite plating processing drill method based on mobile anode, uses supercritical based on mobile anode multiple
Conjunction electroplanting device is implemented；Described supercritical composite plating device based on mobile anode includes reactor (1), DC source group
Part (4), mechanical agitator (5), carbon dioxide steel cylinder (6) and high-pressure pump (7)；Described DC source assembly (4) includes
Power supply (41), anode stub (42) and cathode bar (43)；It is characterized in that: described supercritical composite plating based on mobile anode
Device also includes mobile anode assemblies (2), drives assembly (3) and the processed drill bit (8) as cathode body；
Described mobile anode assemblies (2) includes fixed connecting plate (21) and mobile anode (22)；Mobile anode (22) is with fixing
Connecting plate (21) is fixing to be connected；Assembly (3) is driven to include servomotor (31), drive leading screw (32) and connecting rod (33)；Drive
Leading screw (32) is built-in with the elastic conduction coil being insulated from；Servomotor (31) is in transmission connection with driving leading screw (32)；Connect
The left end of bar (33) is fixing with fixed connecting plate (21) to be connected；The right-hand member of connecting rod (33) is fixing with driving leading screw (32) to be connected；
Mobile anode (22) by fixed connecting plate (21), connecting rod (33), drive the built-in elastic conduction coil of leading screw (32) and
Anode stub (42) is connected with the positive electrical of power supply (41)；The upper end of processed drill bit (8) is fixing with the lower end of cathode bar (43) to be connected
Connect and pass through cathode bar (43) and be connected with the negative electricity of power supply (41)；The mobile anode (22) of described mobile anode assemblies (2)
Under the driving driving assembly (3), can move back and forth by the most processed drill bit (8) upward and downward；
The mobile anode (22) of described mobile anode assemblies (2) is provided with 4；These 4 mobile anodes (22) are fixedly installed on
Determine four corners of connecting plate (21)；Processed drill bit (8) is provided with 4, these 4 processed drill bits (8) and 4 mobile anodes
(22) correspondence respectively arranges 1 respectively；
The cylindric pure nickel thin-walled ring that described mobile anode (22) is high 2cm, diameter 3cm, thickness are 2mm；Processed drill bit
(8) the distance between outer wall and the inwall of mobile anode (22) is 1cm；
The method of processing drill, comprises the following steps:
1. the matrix to processed drill bit (8) carries out chemical plating process in advance, and the matrix surface at processed drill bit (8) plates one
Layer is prone to carry out fine copper or the pure nickel of electro-deposition；
2. the binary system electroplate liquid containing nanometer hard particles and compound additive configured is added in reactor (1), Gu
It is set for the processed drill bit (8) for cathode body；The position of the mobile anode (22) of the mobile anode assemblies (2) of regulation makes mobile
Anode (22) can move up and down relative to processed drill bit (8)；Described electroplate liquid is that the nickel salt of sulfur acid nickel and Nickel dichloride. is molten
Liquid；Nanometer hard particles is the diamond nano-particles of diameter 30～60nm；Compound additive is by dodecyl compounds
Additive with ether compound composition；Described electroplate liquid also include concentration be 30g/L～60g/L as electro-deposition slow release
The boric acid of agent；
3. in reactor (1), be passed through carbon dioxide, control temperature in reactor (1) 35～70 DEG C, pressure 8～
In the range of 20MPa, form the ternary plating system with supercritical carbon dioxide emulsion as carrier；
4. set mobile anode (22) relative to the processed drill bit (8) as cathode body move up and down maximum single direction stroke as
5cm；Using at the uniform velocity or the move mode of simple harmonic motion, average speed controls at 1-20mm/s；Electrodeposition time is 1-3 hour；
Nano-composite plate is obtained under the stirring of mechanical agitator (5) assists；
5. electro-deposition is complete, by post processing, obtains the drill bit with nano-composite plate of desired properties requirement.
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| CN201410412652.6A CN104141161B (en) | 2014-08-20 | 2014-08-20 | Method for processing drill bit by supercritical composite electroplating based on mobile anode |
| CN201610587719.9A CN106222729B (en) | 2014-08-20 | 2014-08-20 | Drill bit supercritical composite electroplating processing method based on moving anode |
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| CN201410412652.6A Active CN104141161B (en) | 2014-08-20 | 2014-08-20 | Method for processing drill bit by supercritical composite electroplating based on mobile anode |
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| CN110257882A (en) * | 2019-06-26 | 2019-09-20 | 高国有 | Overcritical composite plating drill bit for machining and application method based on swap cathode |
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| CN106222729B (en) | 2018-02-06 |
| CN106087008B (en) | 2017-11-21 |
| CN106087008A (en) | 2016-11-09 |
| CN106048693B (en) | 2018-06-08 |
| CN104141161B (en) | 2016-08-17 |
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| CN104141161A (en) | 2014-11-12 |
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