CN109482989A - A kind of electrolyte and preparation method thereof and the application in double strand chain wheel shaft Electrolyzed Processing precision correction of the flank shape - Google Patents
A kind of electrolyte and preparation method thereof and the application in double strand chain wheel shaft Electrolyzed Processing precision correction of the flank shape Download PDFInfo
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- CN109482989A CN109482989A CN201710818884.5A CN201710818884A CN109482989A CN 109482989 A CN109482989 A CN 109482989A CN 201710818884 A CN201710818884 A CN 201710818884A CN 109482989 A CN109482989 A CN 109482989A
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- China
- Prior art keywords
- electrolyte
- chain wheel
- wheel shaft
- double strand
- strand chain
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Classifications
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- 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
Abstract
The present invention discloses a kind of electrolyte and preparation method thereof and the application in double strand chain wheel shaft Electrolyzed Processing precision correction of the flank shape, it is made of sodium nitrate, sodium sulphate and deionized water, sodium nitrate is 10-20 mass parts, sodium sulphate is 4-10 mass parts, deionized water is 70-85 mass parts, and the processing that Electrolyzed Processing is applied to the double strand chain wheel shaft after engineering machinery reparation can well solve unmanageable problem after axial workpiece Bead weld repair, and the cost of raw material is cheap, preparation process is simple, and processing effect is good.
Description
Technical field
The present invention relates to a kind of electrolyte of Electrolyzed Processing more particularly to one kind can be to used in engineering machinery
Double strand chain wheel shaft carry out Electrolyzed Processing electrolyte.
Background technique
Double strand chain wheel shaft is primarily subjected to reverse during the work time as driving parts the most commonly used in mechanical engineering
Stress and alternating load.During machine operation, finish, the coefficient of expansion and assembly technology of each component etc. incomplete one
It causes, there is certain gap each other.Therefore, in the operational process that equipment is in big load, bearing is to double strand chain wheel shaft
There is radial impact.Although double strand chain wheel shaft intensity with higher, impact resistance and deformability are poor, prolonged to be on active service
Cause gap constantly to increase, to generate relative motion, further cause the abrasion of double strand chain wheel shaft, so that equipment can not be normal
Operation.After double strand chain wheel shaft wear-out failure, need to carry out skin patching.Currently, in the remanufacturing of engineering machinery, mainly
Surface reconditioning is carried out to the double strand chain wheel shaft after abrasion using advanced process for treating surface, wherein built-up welding is current using most
A kind of repairing technique.This method is repaired using the wearing part of welding method components, to reach removal zero
Parts surface wear-out defect restores the mechanical property of components, thus the service life of elongated component.But using built-up welding
Technology carries out built-up welding to the double strand chain wheel shaft after abrasion, is usually unable to reach qualified size requirement.Therefore, it is necessary to heap postwelding
Components processing is further processed.Double strand chain wheel shaft is this using tool generally using modulation steel, such as 42CrMo steel
There is very high hardness, is difficult to adopt traditional mechanical turning and it is processed.And solve duplex chain wheel uranium pile postwelding
One of the important channel of accurate correction of the flank shape difficult processing topic is exactly using precision ECM processing technology.
Electrolyzed Processing is also known as electrical-chemistry method (Electrochemical Machining-ECM), disagrees traditional machine
Tool processing and common modern processing, Electrolyzed Processing are the anodic solution principles based on electrolytic process and by preforming
Cathode by workpiece according to the contactless special process method of one kind of certain shape and size machine-shaping.Processed
Cheng Zhong, interpolar pass to the direct current or pulse current of low-voltage, high current density, while passing to swiftly flowing electrolyte.Yin
Pole tool is fed with certain speed, to maintain interelectrode constant small―gap suture.Anode workpiece then follow Faraday's law according to
The shape of tool cathode constantly dissolves, until the shape and size of workpiece reach requirement.Electrolyzed Processing is not by processed
The limitation of the intensity, hardness, toughness of material can almost process all conductive materials, microcosmic group of workpiece material after processing
It knits and does not change substantially.Therefore, it is usually used in processing the difficult machining such as hard alloy, high temperature alloy, hardened steel, stainless steel
Material.Therefore, to the accurate correction of the flank shape of engineering machinery double strand chain wheel shaft, Electrolyzed Processing is even more a kind of suitable new process for processing.
Electrochemical Machining Technology is mainly used in the processing of aeroturbine blade and gun tube rifling previously, thereafter and gradually
It is expanded to the fields such as forging die cavity, deep hole, aperture, section blades and integral wheel and deburring.It has also appeared later
Processing to titanium alloy, high temperature heat-resisting Thin-Wall Outer Casing.Due to the traditional processing field of Electrolyzed Processing relate generally to it is above several
Correlative study is not unfolded to the non-advantage field of Electrolyzed Processing in a aspect, researcher.Duplex chain wheel in engineering machinery
After axis part is repaired using technique for overlaying, so that the hardness of workpiece surface further increases, so that traditional machining process
It can not process, lead to the design size for being unable to reach original workpiece after double strand chain wheel shaft reparation.Therefore, it needs to seek new processing
Technique carries out accurate correction of the flank shape to the double strand chain wheel shaft after reparation.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of electrolyte and preparation method thereof and double
Electrolyzed Processing is applied to adding for the double strand chain wheel shaft after engineering machinery is repaired by the application in sprocket shaft Electrolyzed Processing precision correction of the flank shape
Work can well solve unmanageable problem after axial workpiece Bead weld repair, and corresponding need is developed properly
Electrolyte, suitable electrolyte can obtain good processing quality, good surface roughness.
Technical purpose of the invention is achieved by following technical proposals:
A kind of electrolyte is made of sodium nitrate, sodium sulphate and deionized water, and sodium nitrate is 10-20 mass parts, sodium sulphate
For 4-10 mass parts, deionized water is 70-85 mass parts, and every part is 1g；It is preferred that sodium nitrate is 12-18 mass parts, sodium sulphate
For 4-8 mass parts, deionized water is 74-84 mass parts.
When being prepared, sodium nitrate powder and sodium sulfate powder are uniformly mixed, deionized water is then added and dispersed
Uniformly, it is completely dissolved powder, electrolyte can be obtained.In terms of being come by the mass percent of component each in electrolyte, sodium nitrate
It is 10-20%, sodium sulphate is 4-10%, and deionized water is 70-85%；It is preferred that sodium nitrate is 12%~18%, sodium sulphate is
4%~8%, deionized water is 74%~84%.
It is carrying out in use, selection sodium nitrate 12%, sodium sulphate 4%, deionized water 84% or sodium nitrate 18%, sulfuric acid
Sodium 8%, deionized water 74%.
Electrolyte of the invention is in the application in double strand chain wheel shaft Electrolyzed Processing precision correction of the flank shape, for double after weld deposit repairing
Row chain wheel shaft part carries out Electrolyzed Processing, to realize that voltage is to the removal of weld reinforcement and the adjustment of material surface roughness
10-20V, primary clearance △00.2-0.4mm, feed speed be 0.1-0.5mm/min, hydraulic pressure 0.5-1.0MPa, preferably
Voltage is 14-20V, primary clearance △00.2-0.4mm, feed speed are 0.2-0.3mm/min, hydraulic pressure 0.8-
1.0MPa.Electrolyzed Processing temperature is 20-25 degrees Celsius of room temperature, and the time is 1-5min, preferably 1-2.5min；Realize that surface is thick
0.4-0.8um of rugosity.
Compared with prior art, the present invention provides a kind of electrolysis for being suitable for engineering machinery double strand chain wheel shaft Electrolyzed Processing
Liquid, the cost of raw material of the invention is cheap, and preparation process is simple, and processing effect is good, can be used for engineering machinery double strand chain wheel shaft
Electrolyzed Processing.
Detailed description of the invention
Fig. 1 is the photo in kind after the abrasion of double strand chain wheel shaft.
Fig. 2 is the photo in kind after being repaired using built-up welding to the abrasion of double strand chain wheel shaft.
Fig. 3 is the photo in kind that Electrolyzed Processing is carried out to double strand chain wheel shaft after repairing.
Fig. 4 is the surface topography photo of the double strand chain wheel shaft after Electrolyzed Processing.
Specific embodiment
Below by specific embodiment, the invention will be further described.
Processing object is double strand chain wheel shaft, ingredient 42CrMo, specific alloying component such as following table institute in the present invention
Show:
Experimental material ingredient (mass percent wt%, remaining is Fe)
The technological parameter of the Electrolyzed Processing of this experiment, as shown in the table, electrolytic processing process parameter
Embodiment 1
(1) sodium nitrate 0.36kg and sodium sulphate 0.06kg powder are weighed, is uniformly mixed.
(2) deionized water 14.8kg is weighed, the mixed-powder of step (1) is poured into the beaker electrolyte for filling plasma water
In slot, the powder in electrolytic cell is stirred, until powder is completely dissolved, electrolyte is made.
The processing experiment of double strand chain wheel shaft (using double strand chain wheel shaft as anode), axial workpiece built-up welding are carried out by the electrolyte
It surface (the double strand chain wheel shaft after being repaired using built-up welding to the abrasion of double strand chain wheel shaft), will within 1 minute process time
Weld reinforcement all removes, and surface roughness reaches 0.7um, and machining accuracy is high, can replicate the shape of processing cathode substantially.
Embodiment 2
(1) sodium nitrate 2.4kg and sodium sulphate 0.8kg powder are weighed, is uniformly mixed.
(2) deionized water 16.8kg is weighed, the mixed-powder of step (1) is poured into the electrolytic cell for filling plasma water,
Powder in electrolytic cell is stirred, until powder is completely dissolved, electrolyte is made.
By the electrolyte carry out double strand chain wheel shaft part processing experiment, axial workpiece facing surface 2.5 minutes plus
In working hour, weld reinforcement is removed, material surface roughness reaches 0.5um, and machining accuracy highest can replicate processing cathode
Shape.
Embodiment 3
(1) sodium nitrate 0.36kg and sodium sulphate 0.08kg powder are weighed, is uniformly mixed.
(2) deionized water 19.56kg is weighed, the mixed-powder of step (1) is poured into the electrolytic cell for filling plasma water,
Powder in electrolytic cell is adequately stirred, until powder is completely dissolved, electrolyte is made.
By the electrolyte carry out double strand chain wheel shaft part processing experiment, axial workpiece facing surface 2.5 minutes plus
In working hour, weld reinforcement is removed, material surface roughness reaches 0.7um, and machining accuracy is higher, can preferably replicate and add
Work cathode shape.
Record formula and technological parameter according to the present invention and can be achieved for after weld deposit repairing double strand chain wheel shaft part plus
Work, to realize to the removal of weld reinforcement and the adjustment of material surface roughness.Illustrative description has been done to the present invention above,
It should be noted that in the case where not departing from core of the invention, any simple deformation, modification or other this field skills
Art personnel can not spend the equivalent replacement of creative work to each fall within protection scope of the present invention.
Claims (6)
1. a kind of electrolyte, which is characterized in that be made of sodium nitrate, sodium sulphate and deionized water, sodium nitrate is 10-20 quality
Part, sodium sulphate is 4-10 mass parts, and deionized water is 70-85 mass parts.
2. a kind of electrolyte according to claim 1, which is characterized in that preferred sodium nitrate is 12-18 mass parts, sulfuric acid
Sodium is 4-8 mass parts, and deionized water is 74-84 mass parts.
3. the preparation method of electrolyte as described in claim 1, which is characterized in that mix sodium nitrate powder and sodium sulfate powder
It closes uniformly, deionized water is then added and is uniformly dispersed, be completely dissolved powder, electrolyte can be obtained.
4. application of the electrolyte as described in claim 1 in double strand chain wheel shaft Electrolyzed Processing precision correction of the flank shape, which is characterized in that
Electrolyzed Processing is carried out for double strand chain wheel shaft part after weld deposit repairing, it is coarse to the removal of weld reinforcement and material surface to realize
The adjustment of degree.
5. application according to claim 4, which is characterized in that voltage is 10-20V, primary clearance △00.2-0.4mm,
Feed speed is 0.1-0.5mm/min, and hydraulic pressure 0.5-1.0MPa, Electrolyzed Processing temperature is 20-25 degrees Celsius of room temperature, the time
For 1-5min；Realize 0.4-0.8um of surface roughness.
6. application according to claim 4, which is characterized in that voltage is 14-20V, primary clearance △00.2-0.4mm,
Feed speed is 0.2-0.3mm/min, and hydraulic pressure 0.8-1.0MPa, Electrolyzed Processing temperature is 20-25 degrees Celsius of room temperature, the time
For 1-2.5min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710818884.5A CN109482989A (en) | 2017-09-12 | 2017-09-12 | A kind of electrolyte and preparation method thereof and the application in double strand chain wheel shaft Electrolyzed Processing precision correction of the flank shape |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710818884.5A CN109482989A (en) | 2017-09-12 | 2017-09-12 | A kind of electrolyte and preparation method thereof and the application in double strand chain wheel shaft Electrolyzed Processing precision correction of the flank shape |
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| CN109482989A true CN109482989A (en) | 2019-03-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110919115A (en) * | 2019-12-13 | 2020-03-27 | 南京航空航天大学 | Phosphoric acid-ethanol mixed electrolyte for micro-electrolysis linear cutting and polishing and method thereof |
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Patent Citations (7)
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| CN1586761A (en) * | 2004-07-29 | 2005-03-02 | 上海交通大学 | Method for preparing diamond thin film self support round window sample |
| CN101733491A (en) * | 2009-12-22 | 2010-06-16 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for electrolytically machining complex case type surface |
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| CN110919115A (en) * | 2019-12-13 | 2020-03-27 | 南京航空航天大学 | Phosphoric acid-ethanol mixed electrolyte for micro-electrolysis linear cutting and polishing and method thereof |
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Application publication date: 20190319 |