CN1035047C - Electrolytically and mechanically combined polishing technology for inner surface of container - Google Patents
Electrolytically and mechanically combined polishing technology for inner surface of container Download PDFInfo
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- CN1035047C CN1035047C CN 92109346 CN92109346A CN1035047C CN 1035047 C CN1035047 C CN 1035047C CN 92109346 CN92109346 CN 92109346 CN 92109346 A CN92109346 A CN 92109346A CN 1035047 C CN1035047 C CN 1035047C
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- emery cloth
- cloth wheel
- electrode
- polishing
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Abstract
The present invention relates to an electrolytically and mechanically combined polishing technology for the inner surface of a container. The present invention is characterized in that the inner surface of a container is polished in an electrolytical and mechanical polishing combined mode; a workpiece which is polished is used as an anode, and a cathode is additionally arranged; a certain gap is reserved between the anode and the cathode; electrolyte flows into the gap and electrolyzes the inner surface of the workpiece; the inner surface of the workpiece is electrolyzed, and simultaneously, the inner surface of the workpiece is polished by an abrasive cloth wheel; the electrolyzing process and the mechanical polishing process are repeatedly carried out, which leads the inner surface of the workpiece to be gradually smooth; finally, the inner surface of the workpiece accords with the requirement of a mirror surface. The technology of the present invention can lead the roughness of the inner surface of the workpiece to reach Ra 0.005 to 0.02 mum.
Description
The present invention relates to a kind of vessel surface electrochemical machinery bonded complete processing, particularly inner surface of container electrolysis and mechanically combined polishing technology.
At present, carry out the glossing of vessel surface electrolysis and mechanical bond, a kind of scheme is " the polyvinyl chloride still inwall mirror finish technology " that is proposed by Dalian University of Technology, and the patent No. is CN85102757A.Technical characterictic is, utilizes electrolytic polishing principle, carries out polishing operation in conjunction with sand milling again.Its mechanical polishing parts are abrasive bands.Specifically, be exactly the abrasive band, electropolishing technology.Abrasive band the mode with line contact of being in operation contacts throws the part surface.Exist shortcoming to be: 1. because the abrasive band is that line contacts with workpiece, and contact area is little, grinding and polishing efficient is low; 2. because the abrasive band is supported with pinch roller, and the abrasive band is stretching, is that rigidity contacts with the throwing workpiece.Produces and beat easily with between throwing face in when work, to throw appearance part, part surface rough and uneven in surface and cause, and influences the grinding and polishing effect; Since the abrasive band just at emery cloth surface arrangement sand grains, and abrasive band bending the time by pinch roller, sand grains is as easy as rolling off a log to come off, and the gap between sand grains is easy to be thrown the part detritus and fills and leads up, and causes grinding and polishing efficient to reduce.So abrasive band turnover rate height is so polishing efficiency is low.4. the electrolytic parameter that is adopted is a steady state value, promptly no matter which time polishing operation all adopts a kind of electrolysis that related parameter is arranged.Poor with the mechanical polishing conformability.Because there is as above shortcoming in abrasive band electropolishing technology, the workpiece that causes this technology to be polished, its roughness can only reach R
aAbout=0.1 μ m.
The objective of the invention is to propose a kind of new electrolysis and mechanically combined polishing technology, make its shortcoming that overcomes prior art, and have the polishing efficiency height, throw the low characteristics of part roughness.Be exactly to utilize the compound technology of laminated emery cloth wheel and electrolysis specifically, also claim: laminated emery cloth wheel and electropolishing technology the vessel surface polishing.
Realize that the object of the invention scheme is, use the electropolishing technology, utilize laminated emery cloth wheel vessel surface to be carried out the compound rubbing down of orderly electrochemistry and machinery.Electropolishing partly adopts the device and the electrochemistry that adapt with laminated emery cloth wheel that related parameter is arranged, the emery cloth wheel of laminated structure is partly adopted in mechanical polishing, diameter by selected laminated emery cloth wheel, thickness, grit size, rotating speed and with the speed of relative movement of polishing workpiece, adjusting electrolyzer has related parameter, repeatedly repeat workpiece is carried out grinding and polishing, until reaching technical requirements.
Adopt the present invention program's technology to carry out the vessel surface polishing.Advantage mainly shows: 1, because the laminated emery cloth that adopted wheel is the flexible face contact to throws workpiece, and the machined surface effect is mild, and grinding is even, and does not vibrate, unlikelyly cause new part injustice.2, because the emery cloth of emery cloth wheel is the laminated annular array, in the grinding and polishing process, constantly there is new sand grains to contact, grinding and polishing efficient height with workpiece; 3, because emery cloth wheel is soft the contact with workpiece, the sand grains difficult drop-off, and every emery cloth automatically resets after by the sand milling face, the grinding and polishing detritus can not accumulate between sand grains, thereby keeps good sand grains state; 4, owing to adopt laminated emery cloth wheel, draft, play coadapted effect and electrolytic parameter is supporting with it.
Because the present invention has as above advantage, efficient is higher when vessel surface is polished, and average per minute polishing area can reach 0.33m
2More than, and its polishing workpiece roughness is low, can reach R
aAbout=0.03 μ m, adapt to the requirement of metal vessel surface finish, can realize that especially the workpiece area is big, surfaceness requires extremely low vessel surface polishing.
Elaborate below in conjunction with accompanying drawing
Accompanying drawing is a process schematic representation of the present invention.
Technology required equipment device of the present invention has electrolysis section and mechanical part.Mechanical part is an emery cloth wheel 5.It is to be laminated ring row by the emery cloth that some one sides are stained with sand grains to be fixed on the emery cloth wheel wheel hub and to constitute.Driving it by power set can rotate with certain speed.Electrolysis section is by continuous-current plant 2, workpiece anode 1, tool cathode 3, and electrolytic solution 4 can be transported between anode 1 and the negative electrode 3 by electrolytic solution transferpump 6, and under meter 7 is used to observe the flow of electrolytic solution 4.
Vessel surface polishing specific embodiment is: at first the container that will polish is fixed on the anchor, can rotates if container is columnar its container.The emery cloth wheel is the tangential direction setting with vessel surface, and under certain pressure, contacts with vessel surface.The emery cloth wheel also can rotate.Then, dc power anode is connected on the polished container, as electrolytic anode 1, dc power cathode is connected on the tool-electrode 3 again, tool-electrode 3 leaves certain clearance with vessel surface, with electrolytic solution 4 usefulness transferpumps 6 by the road with tool-electrode 3 in orifice flow arrive among cathode and anode two gaps.When polishing operation begins, connect direct supply, make anode generation electrochemical dissolution, the vessel surface metal is dissolved in the electrolytic solution with ionic condition, and produces passive film in the metallic surface.When separating direct supply by energising, connect power, laminated emery cloth wheel is rotated with certain speed, simultaneously, container is also with the certain speed rotation, and emery cloth wheel one side is rotated, one side constantly changes the rubbing down position in the vessel surface relative displacement, and vessel surface is carried out grinding.Remove the passive film that vessel surface metal and electrolysis are produced.Electrolysis and emery cloth wheel corrodes effect with grinding to the vessel surface metal simultaneously, makes its surface smooth-out.According to different containers, selected different polishing stage and processing parameters.
To the common metal container, polishing process can carry out stage by stage.That is: slightly throw the stage elementary throwing stage, intermediate throwing stage, senior throwing stage.Concrete processing parameter such as the following table of cooperating:
U in the table (V) is an electrode voltage
| Operation stage | U(V) | i(A) | V(m/s) | P(MPa) | Granularity w |
| The thick throwing | 20-25 | 8-10 | 10 | 0.3 | 180-240 |
| Just throw | 16-20 | 4-8 | 12 | 0.25 | 320-400 |
| Middle rank is thrown | 10-16 | 1.5-4 | 13 | 0.15 | 500-600 |
| Senior throwing | 5-10 | 0-1.5 | 15 | 0.10 | 700-800 |
I (A) is a current density
V (M/S) is emery cloth wheel rotational line speed
P (MPa) is the pressure of emery cloth wheel to workpiece
Granularity w
#Be emery cloth wheel emery cloth granularity electrolyte prescription: NaNO
318%
NaNO
2 2％
H
2O 80% emery cloth wheel with the electrolytic parameter matching principle is, slightly throws, just the throwing stage selects for use emery cloth wheel sand grains big, and the voltage height that is adopted, current density is big, and emery cloth wheel pressure is big, and velocity of rotation is low.The grinding and polishing amount that is produced is big.Intermediate, senior throwing stage selects parameter then to select for use emery cloth wheel sand grains little, and institute's voltage that adopts is low, and current density is little, and it is little that emery cloth is taken turns pressure, the rotating speed height.What produced is bright and clean effective.
The embodiment explanation.Adopt technology polishing polypropylene second reactor of the present invention.Material is a stainless steel, and surfaceness requires Ra≤0.05, and the workpiece area is 45m
2, the emery cloth wheel diameter that is adopted is 150mm, width 60mm.
Process parameter table
| The rank parameter | Thick level | Elementary | Middle rank | Senior |
| U(V) | 23 | 18 | 13 | 7 |
| i(A) | 9 | 6 | 3 | 1 |
| V(m/s) | 10 | 12 | 13 | 15 |
| P(MPa) | 0.3 | 0.25 | 0.15 | 0.1 |
| Granularity w | 180-240 | 320-400 | 500-600 | 700-800 |
Selected electrolyte prescription is: NaNO
318%, NaNO
22%, H
2O 80%.
The described reactor polishing of present embodiment processing, area is 45m
2Only can finish with about 50 hours, surfaceness has reached Ra=0.03 μ m, conforms to the product surface technical requirements fully.
Claims (1)
1, a kind of electrolytically and mechanically combined polishing technology for inner surface of container, to be connect the just very anode of direct supply (2) by Throwing light workpiece (1), other establishes a tool-electrode (3) and is connected with direct supply (2) negative pole for negative electrode, tool-electrode (3) and left certain interval between Throwing light workpiece (1) internal surface, electrolytic solution (4) is carried with transferpump (6), by the road and the centre hole of tool-electrode (3) flow in negative and positive two clearance between poles, connect power supply simultaneously, make anode generation electrochemical dissolution, produce passive film, when connecting electrolysis power, make emery cloth wheel (5) rotation work, remove the passive film of surperficial protuberance metal of workpiece (1) and protuberance metallic surface, electrolysis and emery cloth wheel prop up the process of removing to carry out repeatedly, make workpiece (1) internal surface smooth-out gradually, thereby reach minute surface, it is characterized in that the emery cloth wheel that mechanical Throwing light adopts is the emery cloth wheel of laminated structure, have the electrolysis and the operating parameters that adapt with it:
Electrode voltage: u=5～25V
Current density: D=0～10A/CM
2
Emery cloth wheel linear velocity: V=10～15M/S
The emery cloth wheel is to workpiece pressure: P=0.1～0.3MPa
Emery cloth wheel grit size: 180
#～800
#
Electrode and emery cloth wheel and the workpiece amount of feed=20～50mm/min
Electrode and workpiece gap: d=1mm
Electrolyte ratio: NaNo 18%
NaNo 2％
H
2O 80％
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92109346 CN1035047C (en) | 1992-08-15 | 1992-08-15 | Electrolytically and mechanically combined polishing technology for inner surface of container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92109346 CN1035047C (en) | 1992-08-15 | 1992-08-15 | Electrolytically and mechanically combined polishing technology for inner surface of container |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1081946A CN1081946A (en) | 1994-02-16 |
| CN1035047C true CN1035047C (en) | 1997-06-04 |
Family
ID=4944093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92109346 Expired - Fee Related CN1035047C (en) | 1992-08-15 | 1992-08-15 | Electrolytically and mechanically combined polishing technology for inner surface of container |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1035047C (en) |
Cited By (1)
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|---|---|---|---|---|
| CN110722407A (en) * | 2019-10-23 | 2020-01-24 | 扬州大学 | Honeycomb ring electrolytic grinding machining system and machining method |
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-
1992
- 1992-08-15 CN CN 92109346 patent/CN1035047C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110722407A (en) * | 2019-10-23 | 2020-01-24 | 扬州大学 | Honeycomb ring electrolytic grinding machining system and machining method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1081946A (en) | 1994-02-16 |
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| C14 | Grant of patent or utility model | ||
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