CN103866323A - Burr treatment method - Google Patents
Burr treatment method Download PDFInfo
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- CN103866323A CN103866323A CN201210536846.8A CN201210536846A CN103866323A CN 103866323 A CN103866323 A CN 103866323A CN 201210536846 A CN201210536846 A CN 201210536846A CN 103866323 A CN103866323 A CN 103866323A
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- burr
- treatment process
- burr treatment
- protective layer
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Abstract
The present invention provides a burr treatment method, which comprises: coating a protection layer on the surface of a metal work-piece; punching on the metal work-piece, wherein burrs are formed on the back surface of the through hole; carrying out acid washing passivation on the metal work-piece to remove the burrs; and removing the protection layer. According to the present invention, the protection layer is coated on the surface of the metal work-piece before punching, damage is only produced on the protection layer near the through hole after punching, the burrs are removed through acid washing, and then the protection layer is removed, such that the burrs are removed while the aesthetic property of the metal work-piece is not affected.
Description
Technical field
The present invention relates to metal surface treating method, relate in particular to a kind of burr treatment process.
Background technology
Laser boring is by the laser straight of the high-temperature metals such as wearing stainless steel of returning, and can leave obvious burr at the back side of the metals such as stainless steel like this, affects the functional of aperture.For fin cutting, and not destroying the stainless steel surface of polishing, is can be by polishing fin cutting again under normal circumstances.If but the workpiece of punching cannot carry out polished finish, for example: workpiece is that the back side of tubular and punching is in tube shape component inner bottom part or other positions that cannot carry out polishing, just need to remove by common acid cleaning process, but will destroy like this metallic surface of workpiece, cannot meet the demand of the aesthetic property of workpiece.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, when a kind of fin cutting is provided, do not affect the burr treatment process of metal works aesthetic property.
Technical scheme of the present invention provides a kind of burr treatment process, comprises the following steps: apply layer protective layer at surface of workpiece; Described metal works is punched, and the back side of through hole forms burr; Described metal works is carried out to acid wash passivation to remove described burr; Remove protective layer.
Preferably, described protective layer is electrocoating paint.
Preferably, use neutral paint stripper to remove electrophoretic paint layer.
Preferably, the time of acid wash passivation processing is 8 ~ 10 minutes, and temperature is 35 ~ 40 DEG C.
Preferably, described metal works is utilized to laser boring.
Preferably, described protective layer covers the whole surface of described metal works.
Adopt after technique scheme, there is following beneficial effect: due to the surface-coated matcoveredn at metal works before punching, after punching, only near protective layer through hole is produced and destroyed, after utilizing pickling that burr is removed, then remove protective layer.In fin cutting, do not affect like this aesthetic property of metal works.
Brief description of the drawings
Fig. 1 is the schema of burr treatment process in one embodiment of the invention.
Embodiment
Further illustrate the specific embodiment of the present invention below in conjunction with accompanying drawing.
As shown in Figure 1, burr treatment process comprises the following steps:
S101: apply layer protective layer at surface of workpiece;
Preferably, protective layer is electrocoating paint.Electrocoating paint is a kind of low pollution, the province energy, resource-saving, plays the coating of protection and non-corrosibility effect, has smooth coating, the features such as water tolerance and chemical resistant properties.The present invention utilizes electrocoating paint chemical-resistant feature, can protect the surface of metal works not to be subject to the impact of pickling.
Preferably, the whole surface of electrocoating paint covering metal workpiece.Electrocoating paint can also only be coated on the surface that need to ensure aesthetic property.
Preferably, metal works is utilized to laser boring.Also can be that punching press forms hole, or boring.
S102: metal works is punched, and the back side of through hole forms burr; After punching, destroyed near the electrocoating paint of through hole, the burr of formation is exposed to outside and is not covered by electrocoating paint.
S103: metal works is carried out to acid wash passivation with fin cutting; Because electrocoating paint has been protected other surfaces except the metal works of through hole and burr; acid cleaning process is burr and the corrosion thing that the chemical reaction by metal and acid solution forms salt and be dissolved in acid solution and remove part; now the aperture position on part can produce pickling reaction very soon; thereby in fin cutting, do not destroy the part with electrocoating paint around.
Preferably, the time of acid wash passivation processing is 8 ~ 10 minutes, and temperature is 35 ~ 40 DEG C.
S104: remove protective layer.
Preferably, use neutral paint stripper to remove electrophoretic paint layer.Use neutral paint stripper can effectively remove its surperficial sprayed coating, at short notice (30-180 second) electrophoretic layer and metal separation that various metals have been coated; It is fast that it has paint stripping rate, do not injure electrolytic coating, and nondiscoloration is cleaned easyly after depainting, do not stay residue, just can directly again process coating without doing over again.Commercially available paint remover all can be used for the present invention.
Paint remover technical indicator in the present embodiment is:
The flammable effective constituent volatility of outward appearance solubleness PH relative density
Colourless transparent liquid 20.57 ± 17 ± 1 does not fire 99.9% micro-1.15 ± 0.05
According to above method, the metallic surface except through hole can not destroyed by Acidwash solution.Leave over burr after removal laser boring in, both reach the Functional Requirement of through hole, and can meet again the outward appearance demand of surface of workpiece.
Above-described is only principle of the present invention and preferred embodiment.It should be pointed out that for the person of ordinary skill of the art, on the basis of the principle of the invention, can also make some other modification, also should be considered as protection scope of the present invention.
Claims (6)
1. a burr treatment process, comprises the following steps:
Apply layer protective layer at surface of workpiece;
Described metal works is punched, and the back side of through hole forms burr;
Described metal works is carried out to acid wash passivation to remove described burr;
Remove described protective layer.
2. burr treatment process according to claim 1, is characterized in that, described protective layer is electrocoating paint.
3. burr treatment process according to claim 2, is characterized in that, uses neutral paint stripper to remove electrophoretic paint layer.
4. burr treatment process according to claim 1, is characterized in that, the time of acid wash passivation processing is 8 ~ 10 minutes, and temperature is 35 ~ 40 DEG C.
5. burr treatment process according to claim 1, is characterized in that, described metal works is utilized to laser boring.
6. burr treatment process according to claim 1, is characterized in that, described protective layer covers the whole surface of described metal works.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201210536846.8A CN103866323A (en) | 2012-12-12 | 2012-12-12 | Burr treatment method |
Applications Claiming Priority (1)
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CN201210536846.8A CN103866323A (en) | 2012-12-12 | 2012-12-12 | Burr treatment method |
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CN103866323A true CN103866323A (en) | 2014-06-18 |
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CN201210536846.8A Pending CN103866323A (en) | 2012-12-12 | 2012-12-12 | Burr treatment method |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105537866A (en) * | 2015-12-14 | 2016-05-04 | 广东长盈精密技术有限公司 | Metal workpiece machining method |
CN109161894A (en) * | 2018-09-21 | 2019-01-08 | 佛山市禅城区诺高环保科技有限公司 | A kind of method of steel surface deburring |
CN110129859A (en) * | 2018-02-08 | 2019-08-16 | 通用电气公司 | The method sheltered the hole in element and element is handled |
CN112708911A (en) * | 2020-11-30 | 2021-04-27 | 沈阳富创精密设备股份有限公司 | Special process method for reducing nickel brushing burrs |
CN113927185A (en) * | 2021-09-09 | 2022-01-14 | 中国航发南方工业有限公司 | Method for processing vent hole on metal part body by using laser |
CN114559223A (en) * | 2022-03-23 | 2022-05-31 | 惠州市国丰达五金制品有限公司 | Manufacturing method of metal power supply shell |
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JP2005177611A (en) * | 2003-12-19 | 2005-07-07 | Shuho:Kk | Method of surface treatment for product composed of metal or conductive material and article obtained thereby |
CN101254138A (en) * | 2008-03-28 | 2008-09-03 | 西北有色金属研究院 | Micropore processing method of bone repairing body rough surface |
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2012
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Patent Citations (2)
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JP2005177611A (en) * | 2003-12-19 | 2005-07-07 | Shuho:Kk | Method of surface treatment for product composed of metal or conductive material and article obtained thereby |
CN101254138A (en) * | 2008-03-28 | 2008-09-03 | 西北有色金属研究院 | Micropore processing method of bone repairing body rough surface |
Non-Patent Citations (3)
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105537866A (en) * | 2015-12-14 | 2016-05-04 | 广东长盈精密技术有限公司 | Metal workpiece machining method |
CN110129859A (en) * | 2018-02-08 | 2019-08-16 | 通用电气公司 | The method sheltered the hole in element and element is handled |
US11814742B2 (en) | 2018-02-08 | 2023-11-14 | General Electric Company | Method of masking apertures in a component and processing the component |
CN109161894A (en) * | 2018-09-21 | 2019-01-08 | 佛山市禅城区诺高环保科技有限公司 | A kind of method of steel surface deburring |
CN112708911A (en) * | 2020-11-30 | 2021-04-27 | 沈阳富创精密设备股份有限公司 | Special process method for reducing nickel brushing burrs |
CN113927185A (en) * | 2021-09-09 | 2022-01-14 | 中国航发南方工业有限公司 | Method for processing vent hole on metal part body by using laser |
CN113927185B (en) * | 2021-09-09 | 2024-05-10 | 中国航发南方工业有限公司 | Method for machining vent hole on metal part body by laser |
CN114559223A (en) * | 2022-03-23 | 2022-05-31 | 惠州市国丰达五金制品有限公司 | Manufacturing method of metal power supply shell |
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Application publication date: 20140618 |