CN113862766A - Method and device for processing surface grains of iron workpiece - Google Patents
Method and device for processing surface grains of iron workpiece Download PDFInfo
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- CN113862766A CN113862766A CN202110971013.3A CN202110971013A CN113862766A CN 113862766 A CN113862766 A CN 113862766A CN 202110971013 A CN202110971013 A CN 202110971013A CN 113862766 A CN113862766 A CN 113862766A
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 238
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 119
- 238000000034 method Methods 0.000 title claims abstract description 61
- 238000005530 etching Methods 0.000 claims abstract description 53
- 239000008151 electrolyte solution Substances 0.000 claims abstract description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 39
- 238000006479 redox reaction Methods 0.000 claims abstract description 7
- 229910052751 metal Inorganic materials 0.000 claims description 20
- 239000002184 metal Substances 0.000 claims description 20
- 238000003754 machining Methods 0.000 claims description 17
- 238000004140 cleaning Methods 0.000 claims description 15
- 239000010410 layer Substances 0.000 claims description 14
- 230000000694 effects Effects 0.000 claims description 10
- 244000137852 Petrea volubilis Species 0.000 claims description 8
- 239000000243 solution Substances 0.000 claims description 8
- 238000005498 polishing Methods 0.000 claims description 5
- 239000012459 cleaning agent Substances 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 239000003973 paint Substances 0.000 claims description 4
- 239000011241 protective layer Substances 0.000 claims description 4
- 239000000758 substrate Substances 0.000 claims description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical class [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 3
- 238000003672 processing method Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 31
- 229910021506 iron(II) hydroxide Inorganic materials 0.000 abstract description 11
- NCNCGGDMXMBVIA-UHFFFAOYSA-L iron(ii) hydroxide Chemical compound [OH-].[OH-].[Fe+2] NCNCGGDMXMBVIA-UHFFFAOYSA-L 0.000 abstract description 11
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract description 9
- 229910001448 ferrous ion Inorganic materials 0.000 abstract description 8
- 238000007254 oxidation reaction Methods 0.000 abstract description 8
- 229960004887 ferric hydroxide Drugs 0.000 abstract description 7
- IEECXTSVVFWGSE-UHFFFAOYSA-M iron(3+);oxygen(2-);hydroxide Chemical compound [OH-].[O-2].[Fe+3] IEECXTSVVFWGSE-UHFFFAOYSA-M 0.000 abstract description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 4
- 239000001301 oxygen Substances 0.000 abstract description 4
- 229910052760 oxygen Inorganic materials 0.000 abstract description 4
- 239000013049 sediment Substances 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 abstract description 2
- 230000003647 oxidation Effects 0.000 abstract description 2
- 229940021013 electrolyte solution Drugs 0.000 description 30
- 238000009413 insulation Methods 0.000 description 17
- 239000002253 acid Substances 0.000 description 14
- 238000011282 treatment Methods 0.000 description 14
- 238000004519 manufacturing process Methods 0.000 description 11
- 229910052739 hydrogen Inorganic materials 0.000 description 10
- 239000001257 hydrogen Substances 0.000 description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 9
- 229910052802 copper Inorganic materials 0.000 description 6
- 239000010949 copper Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 238000001035 drying Methods 0.000 description 4
- 150000002431 hydrogen Chemical class 0.000 description 4
- -1 hydrogen ions Chemical class 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 239000002244 precipitate Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 238000010147 laser engraving Methods 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 238000006722 reduction reaction Methods 0.000 description 3
- 238000007650 screen-printing Methods 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 239000002313 adhesive film Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000005282 brightening Methods 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000011133 lead Substances 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- 238000007539 photo-oxidation reaction Methods 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 239000011135 tin Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F3/00—Electrolytic etching or polishing
- C25F3/02—Etching
- C25F3/06—Etching of iron or steel
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F3/00—Electrolytic etching or polishing
- C25F3/02—Etching
- C25F3/14—Etching locally
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F7/00—Constructional parts, or assemblies thereof, of cells for electrolytic removal of material from objects; Servicing or operating
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- ing And Chemical Polishing (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
The application relates to a method and a device for processing surface grains of an iron workpiece. The method comprises the following steps: insulating the non-grain etching area of the iron workpiece to obtain a workpiece to be processed; connecting a workpiece to be processed with a positive electrode of a power supply and immersing the workpiece to be processed in an electrolyte solution; electrifying a power supply for a preset processing time to enable iron in a grain etching area of the workpiece to be processed and water molecules in an electrolyte solution to perform oxidation-reduction reaction to obtain a target workpiece; the surface of the target workpiece has a desired texture. In the scheme that this application provided, after the power circular telegram, the oxidation reaction takes place for the iron in the line etching district of iron work piece, generates ferrous ion and hydroxyl combination and forms ferrous hydroxide, further forms the ferric hydroxide sediment by oxygen molecular oxidation, and then forms required line. The scheme has simple processing process and no strong corrosivity of the product after reaction.
Description
Technical Field
The application relates to the technical field of electrochemical machining, in particular to a method and a device for machining surface grains of an iron workpiece.
Background
The requirement of making the grain effect on the surface of the iron workpiece widely exists in industries such as die production, electronic equipment production and the like, the grain on the surface of the iron workpiece can not only make the surface of the workpiece beautiful, but also realize certain functions, such as: skid resistance, etc.
In the current industry, two main implementation schemes for manufacturing lines on the surface of an iron workpiece are provided:
1. the laser engraving method, however, the laser processing equipment used in the proposal has high cost and long processing time.
2. The pattern-drying process is utilized, and the strong acid corrosive liquid is adopted to carry out chemical corrosion on the workpiece, so that the process is complex to operate, and the strong acid corrosive liquid is seriously polluted and is not environment-friendly.
In the prior art, a patent document with publication number CN103060876B discloses an anodic photo-oxidation composite process for continuous ceramic texture pattern effect of aluminum plate, and the process flow of the process sequentially comprises: unreeling an aluminum plate, carrying out a silk-screen printing process, carrying out an acid etching degreasing brightening process, carrying out water cleaning, carrying out an acid sand etching process or an acid texture etching process, carrying out water cleaning, carrying out an acid etching brightening process, carrying out water cleaning, carrying out a neutralization process, carrying out water cleaning, carrying out an ink removing process, carrying out water cleaning, carrying out an anodic oxidation process, carrying out water cleaning and drying, carrying out a photooxidation protection sealing process and reeling.
The scheme still has the problems that the strong acid corrosive liquid is adopted to carry out chemical corrosion on the workpiece, the process operation is complex, and the strong acid corrosive liquid is seriously polluted and is not environment-friendly.
Disclosure of Invention
In order to overcome the problems in the related art, the application provides the processing method and the device for the surface grains of the iron workpiece, the processing process of the method is more environment-friendly and cleaner, the processing period is short, and the operation is simple and easy.
The application provides in a first aspect a method for processing surface texture of an iron workpiece, comprising:
insulating the non-grain etching area of the iron workpiece to obtain a workpiece to be processed;
connecting the workpiece to be processed with a power supply anode and immersing the workpiece to be processed in an electrolyte solution; the electrolyte solution includes: saturated sodium chloride solution;
electrifying the power supply for a preset processing time, so that iron in the texture etching area of the workpiece to be processed and water molecules in the electrolyte solution are subjected to oxidation-reduction reaction to obtain a target workpiece; the surface of the target workpiece is provided with a required texture.
In one embodiment, the non-textured etched region comprises: a protection zone;
insulating processing is carried out to the non-line etching district of iron work piece, obtains treating the processing work piece, includes:
adhering an insulating tape to the protection area to obtain the workpiece to be processed;
or
And coating insulating paint on the protection area to obtain the workpiece to be processed.
In one embodiment, the non-textured etched region comprises: a grain gap region;
insulating processing is carried out to the non-line etching district of iron work piece, obtains treating the processing work piece, includes:
covering an insulating film on the grain gap region; the insulating film is provided with a hollow-out area; the hollow-out area is matched with the required lines.
In one embodiment, the insulating film is an insulating water-attached film;
the step of covering the grain gap region with an insulating film includes:
after the insulating water pasting film is soaked, the insulating water pasting film covers the grain gap area, and then the insulating water pasting film is dried.
In one embodiment, before performing an insulation treatment on the non-grain etching region of the iron workpiece to obtain the workpiece to be processed, the method includes:
and cleaning the surface of the iron workpiece.
In one embodiment, the cleaning the surface of the iron workpiece comprises:
and (3) polishing the iron workpiece by using sand paper until the surface of the iron workpiece is smooth, and then cleaning oil stains on the surface of the iron workpiece by using a cleaning agent.
In one embodiment, after the insulating treatment is performed on the non-grain etching region of the iron workpiece to obtain a workpiece to be processed, the method includes:
after connecting the negative electrode metal plate with the negative electrode of the power supply, immersing the negative electrode metal plate in the electrolyte solution; the metal activity of the negative metal plate is weaker than that of iron.
In one embodiment, the preset processing time period ranges from 2min to 5 min.
In one embodiment, the insulating water-lay film comprises: the substrate layer, the pattern layer and the protective layer; wherein the pattern layer is made of insulating ink;
covering the insulating water film on the grain gap region, specifically: and covering the pattern layer on the grain gap area.
The application second aspect provides a processingequipment of work piece surface line made of iron, includes:
a power supply, an insulating vessel 11 and an iron workpiece 12;
the insulating vessel 11 is used for storing electrolyte solution;
the power supply comprises a power supply anode 13 and a power supply cathode 14; the power supply anode 13 is connected with the iron workpiece 12; the iron work piece 12 is placed in the insulating vessel 11 and immersed in the electrolyte solution; the negative power supply 14 is in contact with the electrolyte solution.
The technical scheme provided by the application can comprise the following beneficial effects:
the iron workpiece is connected with the positive electrode of the power supply to serve as the anode, the negative electrode of the power supply serves as the cathode, the iron workpiece is immersed in the electrolyte solution, after the power supply is turned on, the non-grain etching area of the iron workpiece is subjected to insulation treatment, therefore, in the electrolyte solution, the non-grain etching area cannot form a conductive path with the negative electrode of the power supply, the grain etching area of the iron workpiece and the negative electrode of the power supply form a conductive path, further, iron in the grain etching area is subjected to oxidation reaction to generate ferrous ions, the cathode is subjected to reduction reaction, the hydrogen ions obtain electrons to form hydrogen, the ferrous ions and hydroxyl groups are combined to form ferrous hydroxide, the ferrous hydroxide is oxidized by oxygen molecules to form ferric hydroxide precipitate, further, the grain etching area and the non-grain etching area of the iron workpiece generate depth difference, and further, required grains are formed on the surface of the iron workpiece. In this course of working, generate ferric hydroxide sediment and hydrogen behind the redox reaction, do not generate the pollutant of strong corrosivity, and electrolyte solution is the solution that does not have strong corrosivity, also need not to use chemical reagents such as strong acid or alkali, therefore, the course of working is environmental protection more clean, and this course of working only need carry out the insulating treatment back to the non-line etching district of iron work piece, with its connect power supply positive back dip in electrolyte solution in the circular telegram carry out electrochemical machining, need not many times acid etching and water washing, simple step, and convenient operation.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The foregoing and other objects, features and advantages of the application will be apparent from the following more particular descriptions of exemplary embodiments of the application, as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the application.
Fig. 1 is a schematic flow chart illustrating a method for processing surface texture of an iron workpiece according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a processing apparatus for processing surface grains of an iron workpiece according to an embodiment of the present application.
Detailed Description
Preferred embodiments of the present application will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present application are shown in the drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It should be understood that although the terms "first," "second," "third," etc. may be used herein to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present application. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
Example one
In the current industry, two main implementation schemes for manufacturing lines on the surface of an iron workpiece are provided: laser engraving and pattern drying process; the laser processing equipment used in the laser engraving method has high cost and long processing time; and the pattern-drying process is utilized, and the strong acid corrosive liquid is adopted to carry out chemical corrosion on the workpiece, so that the process is complex to operate, and the strong acid corrosive liquid is seriously polluted and is not environment-friendly.
Aiming at the problems, the embodiment of the application provides the processing method of the surface grains of the iron workpiece, the processing process is simple and convenient, no strong corrosive pollutant is generated, and the processing process is environment-friendly and clean.
The technical solutions of the embodiments of the present application are described in detail below with reference to the accompanying drawings.
Referring to fig. 1, the method for processing the surface texture of the iron workpiece includes:
101. insulating the non-grain etching area of the iron workpiece to obtain a workpiece to be processed;
in an embodiment of the present application, the non-textured etching region includes: a protection zone; the protection area is a bottom surface and four side surfaces of the iron workpiece without processing surface grains;
further, the non-textured etched region comprises: a grain gap region; the surface of the iron workpiece needing to be processed with surface grains is provided with a grain gap area except the grain etching area.
In practical application, the specific material of the iron workpiece can be carbon steel or low alloy steel.
102. Connecting the workpiece to be processed with a power supply anode and immersing the workpiece to be processed in an electrolyte solution;
in the embodiment of the application, the workpiece to be processed is connected with the positive electrode of a power supply and is immersed in an electrolyte solution, that is, in the electrochemical processing process, the workpiece to be processed is taken as the anode, a power supply lead is a copper wire, and the metal activity of the copper is weaker than that of iron, so that the copper wire at the negative electrode of the power supply is taken as the cathode, after the power is supplied, an oxidation reaction occurs near the anode in the electrolyte solution, and a reduction reaction occurs near the cathode.
In an embodiment of the present application, the electrolyte solution includes: saturated sodium chloride solution, in the practical application process, other electrolyte solutions can also be selected, for example: ammonium sulfate solution.
In this application embodiment, in order to guarantee the processing effect of surface line to and improve machining efficiency, need with wait to process the work piece with the copper line of power negative pole is in the electrolyte solution completely, and the line etching district to guarantee to wait to process the work piece can be electrically conductive completely.
Furthermore, in order to increase the current passing area and improve the processing efficiency, a negative electrode metal plate can be connected with the negative electrode of the power supply and then immersed in the electrolyte solution; the material adopted by the negative electrode metal plate is a metal with metal activity weaker than that of iron, such as: tin, lead, hydrogen, copper, mercury, silver, platinum, and gold. Preferably, in the embodiment of the present application, a negative electrode metal plate made of copper is used.
103. And electrifying the power supply for a preset processing time, so that the iron in the texture etching area of the workpiece to be processed and the water molecules in the electrolyte solution are subjected to oxidation-reduction reaction to obtain the target workpiece.
The surface of the target workpiece is provided with a required texture.
After the power supply is turned on, as the non-grain etching area of the workpiece to be processed is subjected to insulation treatment, a path cannot be formed in a conductive manner; the grain etching area and a power supply cathode form a conductive path in an electrolyte solution, and a workpiece to be processed as an anode and a power supply cathode copper wire as a cathode respectively undergo oxidation reaction and reduction reaction.
Specifically, the method comprises the following steps:
the anode undergoes the following oxidation reactions: fe-2e-＝Fe2+Further oxidized to generate ferrous ions;
the cathode undergoes the following reduction: 2H++2e-＝H2The hydrogen ions gain electrons to form hydrogen gas.
The general equation for the chemical reaction in the electrolyte solution is:
in the process, because hydrogen ions in water molecules are consumed, the remaining hydroxide radicals are combined with ferrous ions to generate ferrous hydroxide, and the ferrous hydroxide is further oxidized by oxygen molecules to form ferric hydroxide precipitate.
In the above-mentioned circular telegram in-process, in order to prevent that the ferrous hydroxide that forms appears the flocculent surface that adheres to the work piece of treating processing, influence the oxidation reaction in line etching district, need stir solution gently with the insulating rod in the electrochemical machining in-process in step to ensure that the surface of the work piece of treating processing is not covered by ferrous hydroxide suspended solid, guarantee the homogeneity of final surface line.
In the embodiment of the application, the range of the preset processing time is 2min to 5min, and in the practical application process, the preset processing time can be adjusted according to practical processing requirements such as line depth, processing area and the like.
It is to be understood that the above description of the preset machining time period is only an example of the embodiment of the present application, and does not limit the present application.
In the practical application process, in order to ensure the final processed grain depth effect, the soft plasticine substance is used for engraving on the grain etching area of the workpiece to be processed, the grain depth is checked, and the power supply is turned off after the grain depth reaches the required grain depth.
It should be noted that the above-described checking step of the vein depth may be added according to actual production requirements, which is an example given in the embodiments of the present application and is not limited to the present application.
Further, before carrying out insulation treatment on the non-grain etching area of the iron workpiece, the embodiment of the application also cleans the surface of the iron workpiece, specifically: and (3) polishing the iron workpiece by using sand paper until the surface of the iron workpiece is smooth, and then cleaning oil stains on the surface of the iron workpiece by using a cleaning agent.
In this application embodiment, if there are greasy dirt and granule on iron work piece line etching district surface, not only can influence its electric conductivity nature, lead to machining efficiency low or local line etching district can not form electrically conductive route, the protruding granule in its surface still can influence the degree of consistency of the line degree of depth that final processing obtained. Therefore, before the surface texture is processed, the iron workpiece needs to be polished by using sand paper until the surface of the iron workpiece is smooth, and then the oil stain on the surface of the iron workpiece is cleaned by using a cleaning agent.
In the embodiment of the application, the sand paper with the granularity of 400-600 meshes is used for polishing, and it should be noted that in the practical application process, the sand paper with different meshes can be selected according to the surface roughness of the iron workpiece, or the surface of the iron workpiece is polished by using coarse sand paper to polish particles and then using fine sand paper to polish the surface.
In this application embodiment, can choose for use dustless paper or cotton to dip in the sanitizer, clean the greasy dirt cleaning in the regional of polishing on iron work piece surface.
It should be noted that the cleaning of the iron workpiece described above can be increased according to the actual production requirements, which is an example given in the embodiments of the present application and is not a limitation of the present application.
In the embodiment of the application, the iron workpiece is connected with the positive pole of the power supply as the anode and the negative pole of the power supply as the cathode, and the iron workpiece is immersed in the electrolyte solution, after the power supply is switched on, because the non-grain etching area of the iron workpiece is subjected to insulation treatment, in the electrolyte solution, the non-grain etching area and the negative pole of the power supply do not form a conductive path, the grain etching area of the iron workpiece and the negative pole of the power supply form a conductive path, then the iron in the grain etching area is oxidized to generate ferrous ions, the cathode is reduced, the hydrogen ions obtain electrons to become hydrogen, the ferrous ions are combined with hydroxide radicals to form ferrous hydroxide, the ferrous hydroxide is oxidized by oxygen molecules to form ferric hydroxide precipitate, so that the grain etching area and the non-grain etching area of the iron workpiece generate depth difference, and further the required grains are formed on the surface of the iron workpiece. In this course of working, generate ferric hydroxide sediment and hydrogen behind the redox reaction, do not generate the pollutant of strong corrosivity, and electrolyte solution is the solution that does not have strong corrosivity, also need not to use chemical reagents such as strong acid or alkali, therefore, the course of working is environmental protection more clean, and this course of working only need carry out the insulating treatment back to the non-line etching district of iron work piece, with its connect power supply positive back dip in electrolyte solution in the circular telegram carry out electrochemical machining, need not many times acid etching and water washing, simple step, and convenient operation.
Example two
The embodiment of the present application designs step 101 in the first embodiment, and the non-texture etching area is divided into two parts: the protection zone and the grain gap zone adopt different insulation treatments according to the structural characteristics of the two parts.
In an embodiment of the present application, the non-textured etching region includes: a protection zone;
the method comprises the following steps of performing insulation treatment on a non-grain etching area of an iron workpiece to obtain a workpiece to be processed, and specifically comprises the following steps:
adhering an insulating tape to the protection area to obtain the workpiece to be processed;
or
And coating insulating paint on the protection area to obtain the workpiece to be processed.
In the embodiment of the application, the insulating tape is polyvinyl chloride electric insulating tape.
In an embodiment of the present application, the non-textured etching region further includes: a grain gap region;
the method comprises the following steps of performing insulation treatment on a non-grain etching area of an iron workpiece to obtain a workpiece to be processed, and specifically comprises the following steps:
covering an insulating film on the grain gap region; the insulating film is provided with a hollow-out area; the hollow-out area is matched with the required lines.
In the embodiment of the application, the insulating film is an insulating water pasting film; the insulating water pasting film comprises: the substrate layer, the pattern layer and the protective layer; the material of the pattern layer is insulating ink. Because the insulating water sticking film is made of insulating ink, the area covered by the insulating water sticking film can not generate electrochemical reaction in electrolyte solution, and the hollow area of the insulating water sticking film is not subjected to insulating treatment, after the power is switched on, iron in the area is oxidized into ferrous ions and forms ferrous hydroxide with hydroxide radical in water, and the ferrous hydroxide is further oxidized into ferric hydroxide precipitate, so that surface grains corresponding to the hollow area are formed on the iron workpiece.
In this application embodiment, soak behind the insulating water pad pasting, cover insulating water pad pasting behind line clearance district, dry insulating water pad pasting, can accomplish line clearance district covers insulating film, and is specific: soak insulating water pad pasting in the clear water for at least 30 seconds, treat that insulating water pad pasting takes out after soaking completely, isolate insulating water pad pasting's substrate layer, then place the pattern layer on the surface that needs the preparation line on the iron work piece, air naturally 1 to 2 hours after, get rid of insulating water pad pasting's protective layer, then insulating water pad pasting's pattern layer is pasted on iron work piece surface, covers line clearance district.
In the practical application process, if the surface of the iron workpiece needing grain manufacturing is a non-shielding plane, insulating ink can be printed on the surface of the iron workpiece through a silk-screen printing process to form a corresponding insulating grain gap area. However, when the surface of the iron workpiece to be processed with the lines is an irregular curved surface or a shielding object is arranged around the surface, the surface is limited by the screen printing plate, and the insulating ink cannot be accurately coated on the surface of the iron workpiece, so that the line processing effect is affected. The insulating water adhesive film is a soft adhesive film, can be flatly adhered to the surface of the iron workpiece, is not limited by a silk screen plate compared with a silk screen process, and is suitable for iron workpieces in various shapes.
It should be noted that, in the present application, the order of the insulation processing of the protection region and the textured gap region is not strictly limited, and in the embodiment of the present application, the insulation processing of the protection region may be performed first, or the insulation processing of the textured gap region may be performed first. I.e., the order of the insulation process of the guard region and the textured gap region, does not constitute a limitation of the present application.
According to the embodiment of the application, the iron workpiece is divided into two parts to be subjected to insulation treatment, and the insulation of the large-area surface can be completed in a short time by adopting a mode of adhering an insulating tape or coating insulating paint for a protection area needing large-area insulation treatment; to the line clearance district that the small size just has the form to be injectd, then adopt the mode of attached insulating film, because the insulating film is processed out the fretwork region by mechanical equipment in advance, because, operating personnel only need paste the insulating film that has the fretwork region of specific shape on the surface that the work piece of iron needs the processing line, can accomplish the insulation processing in line clearance district, convenient operation, the insulation processing process is accurate.
EXAMPLE III
Corresponding to the embodiment of the application function implementation method, the application also provides a device for processing the surface grains of the iron workpiece and a corresponding embodiment.
Fig. 2 is a schematic structural diagram of a processing apparatus for processing surface grains of an iron workpiece according to an embodiment of the present application.
Referring to fig. 2, the apparatus for processing surface texture of an iron workpiece includes:
a power supply, an insulating vessel 11 and an iron workpiece 12;
the insulating vessel 11 is used for storing electrolyte solution;
the power supply comprises a power supply anode 13 and a power supply cathode 14; the power supply anode 13 is connected with the iron workpiece 12; the iron work piece 12 is placed in the insulating vessel 11 and immersed in the electrolyte solution; the negative power supply 14 is in contact with the electrolyte solution.
In the embodiment of the application, the power supply adopts a 36V power supply device.
In order to increase the current passing area and improve the processing efficiency, the processing device of the surface grains of the iron workpiece further comprises: a negative electrode metal plate 15 connected to a negative electrode of the power supply; the material used for the negative electrode metal plate 15 is a metal having a metal activity weaker than that of iron, for example: tin, lead, hydrogen, copper, mercury, silver, platinum, and gold. Preferably, in the embodiment of the present application, a negative electrode metal plate made of copper is used.
In the embodiment of the application, the electrolyte solution needs to be in the insulating vessel in a sufficient amount so as to be capable of immersing the etching area to be textured of the iron workpiece. The negative metal plate can not directly contact the etching area to be textured of the iron workpiece, so as to avoid short circuit and production accidents.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
The processing device of iron work piece surface line that this application embodiment shows, simple structure, required spare part is small in quantity, with low costs, carries out the processing of iron work piece surface line through this processingequipment, can save manufacturing cost, reduces production steps, improves production efficiency.
The aspects of the present application have been described in detail hereinabove with reference to the accompanying drawings. In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments. Those skilled in the art should also appreciate that the acts and modules referred to in the specification are not necessarily required in the present application. In addition, it can be understood that the steps in the method of the embodiment of the present application may be sequentially adjusted, combined, and deleted according to actual needs, and the modules in the device of the embodiment of the present application may be combined, divided, and deleted according to actual needs.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems and methods according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
Having described embodiments of the present application, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (10)
1. A processing method of surface grains of an iron workpiece is characterized by comprising the following steps:
insulating the non-grain etching area of the iron workpiece to obtain a workpiece to be processed;
connecting the workpiece to be processed with a power supply anode and immersing the workpiece to be processed in an electrolyte solution; the electrolyte solution includes: saturated sodium chloride solution;
electrifying the power supply for a preset processing time, so that iron in the texture etching area of the workpiece to be processed and water molecules in the electrolyte solution are subjected to oxidation-reduction reaction to obtain a target workpiece; the surface of the target workpiece is provided with a required texture.
2. The method of claim 1, wherein the machining step includes the step of machining the surface texture of the iron workpiece,
the non-textured etched region comprises: a protection zone;
insulating processing is carried out to the non-line etching district of iron work piece, obtains treating the processing work piece, includes:
adhering an insulating tape to the protection area to obtain the workpiece to be processed;
or
And coating insulating paint on the protection area to obtain the workpiece to be processed.
3. The method of claim 1, wherein the machining step includes the step of machining the surface texture of the iron workpiece,
the non-textured etched region comprises: a grain gap region;
insulating processing is carried out to the non-line etching district of iron work piece, obtains treating the processing work piece, includes:
covering an insulating film on the grain gap region; the insulating film is provided with a hollow-out area; the hollow-out area is matched with the required lines.
4. The method of claim 3, wherein the machining of the surface texture of the iron workpiece is performed by a machining tool,
the insulating film is an insulating water pasting film;
the step of covering the grain gap region with an insulating film includes:
after the insulating water pasting film is soaked, the insulating water pasting film covers the grain gap area, and then the insulating water pasting film is dried.
5. The method of claim 1, wherein the step of insulating the non-grain etched region of the iron workpiece to obtain the workpiece to be machined comprises:
and cleaning the surface of the iron workpiece.
6. The method of claim 5, wherein the cleaning the surface of the iron workpiece comprises:
and (3) polishing the iron workpiece by using sand paper until the surface of the iron workpiece is smooth, and then cleaning oil stains on the surface of the iron workpiece by using a cleaning agent.
7. The method for processing the surface texture of the iron workpiece as set forth in claim 1, wherein the step of insulating the non-texture etching region of the iron workpiece to obtain the workpiece to be processed comprises:
after connecting the negative electrode metal plate with the negative electrode of the power supply, immersing the negative electrode metal plate in the electrolyte solution; the metal activity of the negative metal plate is weaker than that of iron.
8. The method of claim 1, wherein the machining step includes the step of machining the surface texture of the iron workpiece,
the value range of the preset processing time is 2min to 5 min.
9. The method of machining surface grains of an iron workpiece according to claim 4,
the insulating water pasting film comprises: the substrate layer, the pattern layer and the protective layer; wherein the pattern layer is made of insulating ink;
covering the insulating water film on the grain gap region, specifically: and covering the pattern layer on the grain gap area.
10. The utility model provides a processingequipment of iron work piece surface line which characterized in that includes:
a power supply, an insulating vessel (11) and an iron workpiece (12);
the insulating vessel (11) is used for storing electrolyte solution;
the power supply comprises a power supply positive electrode (13) and a power supply negative electrode (14); the power supply anode (13) is connected with the iron workpiece (12); the iron workpiece (12) is placed in the insulating vessel (11) and immersed in the electrolyte solution; the negative power supply electrode (14) is in contact with the electrolyte solution.
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| US4123337A (en) * | 1977-11-02 | 1978-10-31 | Armco Steel Corporation | Method of improving the surface insulation resistance of electrical steels having an insulative coating thereon |
| CN1120078A (en) * | 1994-09-12 | 1996-04-10 | 北京科技大学 | Method of quick and deep chemical etching for stainless steel |
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Application publication date: 20211231 |