CN100424227C - Aqueous solution composition for treating metal surface - Google Patents
Aqueous solution composition for treating metal surface Download PDFInfo
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- CN100424227C CN100424227C CNB2005100731402A CN200510073140A CN100424227C CN 100424227 C CN100424227 C CN 100424227C CN B2005100731402 A CNB2005100731402 A CN B2005100731402A CN 200510073140 A CN200510073140 A CN 200510073140A CN 100424227 C CN100424227 C CN 100424227C
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- aqueous solution
- metal surface
- processing object
- surface treatment
- carbon tool
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- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The present invention relates to an aqueous solution composition for treating a metal surface and application of removal of oxide skin membranes and burrs on a section of a hardened high-carbon tool-steel die cutting piece and the round-corner formation aspect for the section. After die cutting and cutting high-carbon tool steel completes quenching and tempering treatment in an air furnace, the surface of the die cutting and cutting high-carbon tool steel has a black oxidization layer of which the thickness is a plurality of ten microns; because the black oxidization layer is firmly combined with the steel, when a mechanical polishing mode is utilized to remove the black oxidization layer, the time is long, and the maintenance for the precise shape of a component and the dimensional precision is not easy. Thus, the present invention utilizes a chemical corrosion mode and adds chemical agent and oxidant in aqueous solution; the component having the burrs and the oxide scale membranes and the chemical agent are arranged in a slot together to be mixed, the oxide scale membranes and the burrs are removed in short time (in several minutes), and the round-corner formation of the section can be realized.
Description
Technical field
The invention relates to a kind of aqueous solution composition for treating metal surface and at oxide scale film and the burr of removing sclerosis high carbon tool steel die cutting section and make it application aspect the corners.Especially refer to a kind of chemical etching mode of utilizing,, can realize the aqueous solution composition for treating metal surface and the application method of die-cut section corners simultaneously oxide scale film and the cutting or the removal of die-cut burr on sclerosis high carbon tool steel surface.
Background technology
High carbon tool steel is cheap because of it, and can obtain comparatively tough mechanical characteristics, so widely industry member is used through heat-treatment quenching and tempering processing treatment.
Make fine now or thin plate high carbon tool steel workpiece (for example: knitting needle, pinhock and meticulous hardware or the like), generally reach after the suitable mechanical characteristics with thermal treatment all earlier, again through the machine punching and shaping, but, through the workpiece surface behind the punching and shaping, all form the zone of oxidation and the die-cut burr of tens of micron thickness.These zone of oxidation and die-cut burr, not only unfavorable following process also can hurt the user carelessly, and is very dangerous.So the workpiece behind the general punching and shaping must be removed these zone of oxidation and die-cut burr earlier, can use.
And the mode of at present this zone of oxidation and die-cut burr being removed is directly utilized mechanical mill mostly, makes contact-impact between workpiece and the abrasive grain (as powder emery SiC), and then removes zone of oxidation and die-cut burr; Because of the time that the complete processing of utilizing mechanical mill is required very of a specified duration, and workpiece contacts with the abrasive grain direct impact, workpiece size precision and profile are difficult to definite grasp, so the grinding quality of workpiece can't effectively promote.
Summary of the invention
The present invention's main purpose is to provide a kind of aqueous solution composition for treating metal surface and the application method that the oxide scale film and the burr of sclerosis high carbon tool steel die cutting section can be removed.
Another object of the present invention is to provide a kind of aqueous solution composition for treating metal surface and application method that makes sclerosis high carbon tool steel die cutting section corners.
A further object of the present invention is to provide a kind of processing operation that can replace mechanical mill really, shortens the time of handling scale removal film and burr, improves the aqueous solution composition for treating metal surface and the application method of workpiece quality relatively.
The present invention is an aqueous solution composition for treating metal surface, and utilize metal surface treatment aqueous solution to remove the oxide scale film and the burr of sclerosis high carbon tool steel die cutting section, and make it the method for corners, it mainly is to add chemical agent and oxygenant in the aqueous solution, and utilize the mode of chemical etching, together place the chemical etching groove to stir the processing object and the chemical agent of tool burr and oxide scale film, and can finish oxide scale film and the burr of removing processing object at short notice, and can realize the effect of section corners;
Wherein, aqueous solution composition for treating metal surface of the present invention comprises:
0.1 to 5 grams per liter sulfate ions, this sulfate ion is selected from sulfuric acid and vitriolic water-soluble metal salt;
5 to 50 grams per liter fluorine cpd, these fluorine cpd are selected from ammonium bifluoride, sodium bifluoride, potassium hydrogen fluoride, Neutral ammonium fluoride, hydrofluoric acid, and this sour water-soluble salt; And fluorine cpd produce hydrogen fluoride in the aqueous solution, and the hydrofluoric compound of described generation is selected from ammonium bifluoride, sodium bifluoride, potassium hydrogen fluoride, hydrofluoric acid and Neutral ammonium fluoride;
5 to 50 grams per liter additives, this additive are selected from urea, sulphur urine and water-soluble salt thereof; And
30 to 300 grams per liter hydrogen peroxide.
Certainly, the inventor can adopt various different components ratios at aforementioned metal surface treating aqueous solution composition, and the preferable composition ratio that its prescription is formed is as follows;
With the treatment process that aqueous solution composition for treating metal surface of the present invention carries out, please cooperate and consult shown in Figure 1ly, its step comprises:
Degreasing: grease that the processing object surface of the high carbon tool steel material of will hardening retains and Fouling Cleaning are removed, and make its surface cleaningization, and used clean-out system is any greasy clean-out system commonly used of removing;
Washing: the clean-out system that the processing object surface retains is removed, made its surface cleaningization;
Chemical etching: the processing object and the metal surface treatment aqueous solution of surface cleaningization are placed a chemical etching groove, for example the chemical etching groove can be selected anti-corrosion plastic material for use, as polypropylene (PP), polyvinyl chloride (PVC) etc., make processing object be able to contact with metal surface treatment aqueous solution, and be 3 minutes to 15 minutes its duration of contact, and the surface treatment temperature of maintenance processing object is 1 ℃ to 50 ℃; Wherein, this processing object should be soaked in the metal surface treatment aqueous solution and carry out, and perhaps can directly at least once spray on the processing object surface with metal surface treatment aqueous solution, thus processing object surface oxidation epithelium and burr is removed, and is made it corners;
Neutralization and antirust: the used treatment agent in front that the processing object surface is retained neutralizes, to avoid quick oxidation;
Oven dry: the moisture content that the processing object surface is remaining is removed, and makes surperficial rapid drying.
Description of drawings
Fig. 1 is an etch treatment scheme synoptic diagram of the present invention.
Fig. 2 A is the thin die-cut thermal treatment part of annulus schematic appearance.
Fig. 2 B is that die-cut section is assembled in the synoptic diagram on the turning axle.
Fig. 3 A is a workpiece surface synoptic diagram before the chemical etching.
Fig. 3 B is a workpiece surface synoptic diagram after the chemical etching.
Fig. 4 A is the synoptic diagram of die-cut section tool burr.
Fig. 4 B is the sectional schematic diagram after the chemical etching.
Fig. 5 A is the not synoptic diagram of deflashing of die-cut section.
Fig. 5 B is the synoptic diagram of deflashing and corners.
Fig. 6 is the synoptic diagram of fine plate burr removal and section corners.
Embodiment
Preparing metal surface treating aqueous solution composition
The inventor specifically adopts various different components ratios at aforementioned metal surface treating aqueous solution composition ratio range, forms preferable composition ratio following (but the present invention is not limited by this embodiment) in the mode of embodiment:
In the aforementioned formula ratio, numbering 6,8,10,12 is the optimum proportion of metal surface treatment aqueous solution of the present invention.The compound method of the aqueous solution of the present invention is conventional compound method.
Embodiment 2
Application method
Cooperate the aforementioned processing program, now explain application method of the present invention with specific embodiment.
See also shown in Figure 1, when carrying out chemical erosion of the present invention and handle, earlier with washing and degrease processing mode, the die-cut steel component surface of thermal treatment is cleaned, again with processing object and metal surface treatment aqueous solution of the present invention, place together in the chemical etching groove, mechanically stir equably, and utilize hydrogen peroxide, with the dissociated overvoltage of increase electrochemistry anode, and under this overvoltage, additional power source not, and borrowed sulfuric acid and fluorion in acidic solution, the oxide scale film and the die-cut burr of processing object to be removed, and through the processing object section thickness after corrode handling, can't be because of chemical etching obvious minification.
Simultaneously, because of the section right angle of processing object has the point discharge effect concurrently, charge transfer is fast than the plane, so when chemical etching, can quicken its anode and dissociate and form fillet gradually, with interference, the personnel's incised wound that prevents relevant assembly assembly and the spinning fluffing etc. of sliding.
Please cooperate and consult shown in Fig. 2 A, this figure is a thin die-cut thermal treatment part of annulus, exposes oxide scale film and die-cut section, and is assembled on the turning axle (as Fig. 2 B).
This rotating ring die cutting soaked place metal surface treatment aqueous solution of the present invention, make this turning axle rotate, and keep the rotating speed of 100rpm, can find, the oxide scale film of these about 15 micron thickness in rotating ring die cutting surface can be removed (as shown in Figure 3) in nearly three minutes fully; Simultaneously, the die-cut burr of this rotating ring die cutting also can quicken to dissociate because of the effect of point discharge, and with its removal (shown in Fig. 4 A, B).
In addition, processing object soaked place metal surface treatment aqueous solution, and the etch time is about between five minutes to 15 minutes, can find out that the section corners of the die-cut burr of processing object is fairly obvious by clear among Fig. 5 A, the B, in addition, processing object thickness decrement is very unobvious, all maintains below the 0.2mm, so can be because of after the chemical etching, reduce the thickness of former processing object, make its forfeiture structural strength.
Moreover, please cooperate consult shown in Figure 6, this figure is the fine plate of tool oxide scale film, this plate is dipped in the metal surface treatment aqueous solution of the present invention, continue to swing up and down (about 15 times of per minute), make it equably by the metal surface treatment aqueous solution etch, the oxide scale film of this plate was removed in five minutes, and the effect of burr and section corners is also very remarkable.
To sum up state, aqueous solution composition for treating metal surface of the present invention, and utilize metal surface treatment aqueous solution to remove the oxide scale film and the burr of sclerosis high carbon tool steel die cutting section, and make it the method for corners, system utilizes the mode of chemical etching, thermal treatment is hardened high carbon tool steel (as SK3, SK4 and SK5) surface oxidation epithelium and cutting or die-cut burr remove, it is few to handle used chemical agent amount, the utmost point meets the industrial safety emission standard, simultaneously, die-cut section corners can be made, the processing operation of mechanical mill can be replaced really, shorten the time of handling deoxidation epithelium and burr, improve the workpiece quality relatively.
Claims (6)
1. one kind is utilized metal surface treatment aqueous solution to remove the oxide scale film and the burr of sclerosis high carbon tool steel die cutting section and makes it the method for corners, and its step comprises:
Degreasing: grease that the high carbon tool steel processing object surface of will hardening retains and dirt are removed with clean-out system commonly used, make surface cleaning;
Washing: the used clean-out system in front that the processing object surface retains is removed, made surface cleaning;
Chemical etching: the processing object and the metal surface treatment aqueous solution of surface cleaningization are placed a chemical etching groove, make processing object be able to contact with metal surface treatment aqueous solution;
Neutralization and antirust:, avoid quick oxidation with the aforementioned metal surface treating aqueous solution neutralization that the processing object surface retains;
Oven dry: the moisture content that the processing object surface is remaining is removed, and makes surperficial rapid drying;
Wherein, described aqueous solution composition for treating metal surface comprises:
0.1 to 5 grams per liter sulfate ions;
5 to 50 grams per liter fluorine cpd, these fluorine cpd are selected from ammonium bifluoride, sodium bifluoride, potassium hydrogen fluoride, hydrofluoric acid, and this sour water-soluble salt;
5 to 50 grams per liter additives, this additive are selected from urea, sulphur urine and water-soluble salt thereof; And
30 to 300 grams per liter hydrogen peroxide.
2. utilize metal surface treatment aqueous solution to remove the oxide scale film and the burr of sclerosis high carbon tool steel die cutting section according to claim 1 and make it the method for corners, wherein, be 3 minutes to 15 minutes the duration of contact of this processing object and metal surface treatment aqueous solution.
3. utilize metal surface treatment aqueous solution to remove the oxide scale film and the burr of sclerosis high carbon tool steel die cutting section according to claim 1 and make it the method for corners, wherein, the surface treatment temperature of this processing object is 1 ℃ to 50 ℃.
4. utilize metal surface treatment aqueous solution to remove the oxide scale film and the burr of sclerosis high carbon tool steel die cutting section according to claim 1 and make it the method for corners, wherein, this processing object directly is soaked in the metal surface treatment aqueous solution.
5. utilize metal surface treatment aqueous solution to remove the oxide scale film and the burr of sclerosis high carbon tool steel die cutting section according to claim 1 and make it the method for corners, wherein, directly spray at least once with metal surface treatment aqueous solution on this processing object surface.
6. utilize metal surface treatment aqueous solution to remove the oxide scale film and the burr of sclerosis high carbon tool steel die cutting section according to claim 1 and make it the method for corners, this chemical etching flowing current separation is with being polypropylene (PP), the anti-corrosion plastic material of polyvinyl chloride (PVC).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03119730 CN1254561C (en) | 2003-03-10 | 2003-03-10 | Aqueous solution composition with metal surface treatment |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03119730 Division CN1254561C (en) | 2003-03-10 | 2003-03-10 | Aqueous solution composition with metal surface treatment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1721574A CN1721574A (en) | 2006-01-18 |
| CN100424227C true CN100424227C (en) | 2008-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03119730 Expired - Fee Related CN1254561C (en) | 2003-03-10 | 2003-03-10 | Aqueous solution composition with metal surface treatment |
| CNB2005100731402A Expired - Fee Related CN100424227C (en) | 2003-03-10 | 2003-03-10 | Aqueous solution composition for treating metal surface |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 03119730 Expired - Fee Related CN1254561C (en) | 2003-03-10 | 2003-03-10 | Aqueous solution composition with metal surface treatment |
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| CN (2) | CN1254561C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103966616B (en) * | 2014-04-25 | 2016-08-24 | 安庆谢德尔汽车零部件有限公司 | A kind of chemical deburring technique for spring surface |
| CN108930057B (en) * | 2018-07-03 | 2019-07-12 | 宁波工程学院 | A method of cap layers in removal anodic oxidation preparation SiC nanostructure |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1053647A (en) * | 1990-12-29 | 1991-08-07 | 孙永春 | The chemical stripping method of oxidizing layer of stainless steel |
| CN1148871A (en) * | 1994-03-28 | 1997-04-30 | 索尔维公司 | Baths and method for chemically polishing stainless steel surfaces |
-
2003
- 2003-03-10 CN CN 03119730 patent/CN1254561C/en not_active Expired - Fee Related
- 2003-03-10 CN CNB2005100731402A patent/CN100424227C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1053647A (en) * | 1990-12-29 | 1991-08-07 | 孙永春 | The chemical stripping method of oxidizing layer of stainless steel |
| CN1148871A (en) * | 1994-03-28 | 1997-04-30 | 索尔维公司 | Baths and method for chemically polishing stainless steel surfaces |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1530465A (en) | 2004-09-22 |
| CN1721574A (en) | 2006-01-18 |
| CN1254561C (en) | 2006-05-03 |
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Granted publication date: 20081008 Termination date: 20100310 |