CN107755836A - One kind wheel is to skin processing neutral electrolyte - Google Patents
One kind wheel is to skin processing neutral electrolyte Download PDFInfo
- Publication number
- CN107755836A CN107755836A CN201610690939.4A CN201610690939A CN107755836A CN 107755836 A CN107755836 A CN 107755836A CN 201610690939 A CN201610690939 A CN 201610690939A CN 107755836 A CN107755836 A CN 107755836A
- Authority
- CN
- China
- Prior art keywords
- wheel
- negative electrode
- neutral electrolyte
- skin processing
- naclo3
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H3/00—Electrochemical machining, i.e. removing metal by passing current between an electrode and a workpiece in the presence of an electrolyte
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H3/00—Electrochemical machining, i.e. removing metal by passing current between an electrode and a workpiece in the presence of an electrolyte
- B23H3/02—Electric circuits specially adapted therefor, e.g. power supply, control, preventing short circuits
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H3/00—Electrochemical machining, i.e. removing metal by passing current between an electrode and a workpiece in the presence of an electrolyte
- B23H3/08—Working media
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses one kind wheel to skin processing neutral electrolyte.Conventional wheel to manufacturing process exist take turns it is small to microhardness, wear no resistance, surface roughness is big, the production cycle is long, environmental pollution is serious the problems such as.The present invention is made up of NaNO3, NaCl, NaClO3, NaSO4, water, and by weight percentage, the proportioning respectively formed is NaNO3：18%~30%, NaCl：12%~18%, NaClO3：6%~9%, NaSO4：1%~2%, remaining is water.Wheel after induced with laser is strengthened is connect into pulse power positive pole, negative electrode connects pulse power negative pole, and neutral electrolyte is passed between wheel and negative electrode, and chuck holding-wheel is rotated, negative electrode does feed motion simultaneously, and skin processing is carried out to surface to wheel by pulse electrochemical technology.Enhancing wheel of the invention is to hardness, raising surface abrasion resistance, reduction surface roughness, raising fatigue life.
Description
Technical field
The present invention relates to a kind of neutral electrolyte, more particularly to swashs a kind of wheel to skin processing neutral electrolyte, belongs to
Photo chemistry technology field.
Background technology
Generally wheel is to being to do rotary rolling, and carries the total weight of carrier vehicle, therefore holds very much in the process of running
Easily wear.The manufacturing process of conventional wheel pair is：Wheel blank forging → rough turn cylindrical → fine turning outer circle and internal orifice dimension → in
Frequency quenching, tempering blanking → repair center lapping → cylindrical grinding → keyseat.Although heat treatment can change material structure performance,
Easily cause slight plastic deformation.Mid frequency induction hardening, tempering are difficult to the microhardness and abrasion resistant effect for improving wheel pair.Corase grind, half
Fine grinding, fine grinding are Grinding wheels to most common manufacturing procedure, and grinding speed is very high during due to fine grinding, and grinding area transient temperature is also very
Height, scorch and grinding crack are easily produced, therefore it is difficult to ensure that wheel is ground to very low surface roughness, wheel pair to foreign round
If surface roughness is big, stress concentration can substantially reduce the fatigue strength of wheel pair with regard to strong.Further, since grinding workload is big, mill
A large amount of mist of oils or water smoke can be produced when cutting processing, environment is polluted, workers ' health is caused damage.Therefore above-mentioned operation is deposited
Take turns it is small to microhardness, wear no resistance, surface roughness is big, the production cycle is long, environmental pollution is serious the problems such as.
The content of the invention
In view of the shortcomings of the prior art, the invention provides one kind wheel to skin processing neutral electrolyte, to strengthen wheel
To hardness, improve surface abrasion resistance, reduction surface roughness, raising fatigue life.
The present invention is achieved by the following scheme：
One kind wheel is to skin processing neutral electrolyte, it is characterised in that it is made up of NaNO3, NaCl, NaClO3, NaSO4, water,
By weight percentage, the proportioning respectively formed is NaNO3：18%~30%, NaCl：12%~18%, NaClO3：6%~9%,
NaSO4：1%~2%, remaining is water.
According to another aspect of the present invention, there is provided one kind wheel is to polishing processing method：By after induced with laser is strengthened
Wheel connects pulse power positive pole, and negative electrode connects pulse power negative pole, and neutral electrolyte, chuck clamping trolley are passed between wheel and negative electrode
Wheel is rotated, and negative electrode does feed motion simultaneously, and skin processing is carried out to surface to wheel by pulse electrochemical technology.
Improved as of the invention further, pulse current value be 80 A~180A, pulses range for 600 Hz~
9KHz。
Compared with prior art, the present invention has the advantages that：
（1）It can be reduced to wheel tread surface roughness to carrying out skin processing wheel using pulse electrochemical polishing technology
Less than Ra0.08 μm, so as to process the surface of ultra-smooth, tread surface roughness is smaller, and stress concentration is smaller, fatigue strength
Also it is higher；Because wheel is high to hardness, surface roughness is low, its fatigue life can be made to improve 3-5 times；
（2）The efficiency of pulse electrochemical finishing is unrelated to case hardness with taking turns, also can be quickly for the very high surface of hardness
Complete skin processing；
（3）Grinding force and grinding heat are not produced during skin processing, does not produce additional stress, machining accuracy is high, and surface is not yet
Produce grinding burning and crack；
（4）Wheel after finishing is to that can be supplied directly to user after adjustment assembly, it is not necessary to carry out race for a long time and the production cycle is big
It is big to shorten；
（5）Process due to reducing half fine grinding, fine grinding is right by the mist of oil that grinding is produced is greatly decreased in workshop
The pollution of environment is also greatly decreased, and is a kind of Method of Green Manufacture.
Brief description of the drawings
Fig. 1 is pulse electrochemical finishing schematic diagram of the present invention.
Wherein：1 is wheel, and 2 be electrolyte, and 3 be negative electrode, and 4 be the pulse power.
Embodiment
Below in conjunction with the accompanying drawings, the embodiment of the present invention is described in detail.
By taking metal surface In-situ reaction generation Ti (C, N) as an example, first it is strong to carry out induced with laser for the tread to wheel and wheel rim
Change, using TiO2, formamide, hydrocarbon black powder mixing quality ratio as 5:5:4, laser power 1300W, acetylene, nitrogen flow difference
For 6L/min and 8L/min, the sweep speed of the laser beam is 400mm/min, and optical maser wavelength is 10.6 μm, and spot diameter is
3mm, it is 7r/min to take turns to rotary speed.Wheel tread and wheel rim top layer In-situ reaction generation thickness up to 480 μm Ti (C,
N) layer, microhardness is up to HV2600.
It is polished using the pulse current Electrochemical Finishing of following technological parameter：Pulse frequency 9KHz, arteries and veins
Rush the A of current value 180.The use of Neutral Electrolysis formula of liquid is 20%NaNO3,15%NaCl, 7%NaClO3,2%NaSO4, remaining is water.
By 15 minutes or so, the surface roughness of wheel tread can be polished to Ra0.05 μm.
Claims (3)
1. one kind wheel is to skin processing neutral electrolyte, it is characterised in that by NaNO3, NaCl, NaClO3, NaSO4, water group
Into by weight percentage, the proportioning respectively formed is NaNO3：18%~30%, NaCl：12%~18%, NaClO3：6%~9%,
NaSO4：1%~2%, remaining is water.
2. a kind of neutral electrolyte using described in claim 1 enters road wheel to polishing processing method：It is strong induced with laser will to be passed through
Wheel after change connects pulse power positive pole, and negative electrode connects pulse power negative pole, and neutral electrolyte, chuck are passed between wheel and negative electrode
Holding-wheel is rotated, and negative electrode does feed motion simultaneously, and skin processing is carried out to surface to wheel by pulse electrochemical technology.
3. wheel according to claim 2 is to polishing processing method, it is characterised in that：Pulse current value is 80 A~180A,
Pulses range is 600 Hz~9KHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610690939.4A CN107755836A (en) | 2016-08-20 | 2016-08-20 | One kind wheel is to skin processing neutral electrolyte |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610690939.4A CN107755836A (en) | 2016-08-20 | 2016-08-20 | One kind wheel is to skin processing neutral electrolyte |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107755836A true CN107755836A (en) | 2018-03-06 |
Family
ID=61262457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610690939.4A Pending CN107755836A (en) | 2016-08-20 | 2016-08-20 | One kind wheel is to skin processing neutral electrolyte |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107755836A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114309835A (en) * | 2021-12-15 | 2022-04-12 | 中车株洲电力机车有限公司 | Profiling repair method and system for wheels of railway vehicle |
-
2016
- 2016-08-20 CN CN201610690939.4A patent/CN107755836A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114309835A (en) * | 2021-12-15 | 2022-04-12 | 中车株洲电力机车有限公司 | Profiling repair method and system for wheels of railway vehicle |
| CN114309835B (en) * | 2021-12-15 | 2023-01-20 | 中车株洲电力机车有限公司 | Profiling repair method and system for wheels of railway vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180306 |
|
| WD01 | Invention patent application deemed withdrawn after publication |