CN106637357A - Method for removing electrophoretic paint on carbon steel workpiece surface - Google Patents
Method for removing electrophoretic paint on carbon steel workpiece surface Download PDFInfo
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- CN106637357A CN106637357A CN201510710577.6A CN201510710577A CN106637357A CN 106637357 A CN106637357 A CN 106637357A CN 201510710577 A CN201510710577 A CN 201510710577A CN 106637357 A CN106637357 A CN 106637357A
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Abstract
The invention relates to a method for removing electrophoretic paint on the carbon steel workpiece surface. The method includes the following steps that (1) workpiece containing is carried out, wherein workpieces are contained into corresponding material baskets according to specifications; (2) acid pickling is carried out, wherein the material baskets containing the workpieces are placed into an acid pickling pool, acid pickling is carried out for 10 minutes at 70 DEG C, and then the material baskets are taken out; (3) washing is carried out, wherein the workpieces obtained after acid pickling is washed with water for 1 minute at the normal temperature; (4) neutralization is carried out, wherein the workpieces washed with water is washed with neutralization liquid for 1 minute at the normal temperature; and (5) deionized water washing is carried out, wherein the workpieces are soaked for 5 minutes in deionized water, a phosphating solution on the workpiece surface is thoroughly washed, and the conductivity is smaller than 30 [mu]S/cm. The method is simple in process step, easy to operate and clean and through in electrophoretic paint removal, and the carbon steel workpiece appearance is guaranteed.
Description
Technical field
The present invention relates to a kind of method for removing electrophoretic paint, specifically a kind of method for removing carbon steel work-piece surface electrophoretic paint.
Background technology
When in use, surface of the work electrophoretic paint can not be removed completely the method for removing carbon steel work-piece surface electrophoretic paint of prior art, or easily workpiece outward appearance, size etc. are impacted after removing completely, directly affect the quality of workpiece.
The content of the invention
It is an object of the present invention to provide a kind of simply and easily remove the electrophoretic paint on carbon steel work-piece surface, and carbon steel work-piece outward appearance, the processing method of size are not affected.
The technical scheme is that：Perform in following processing steps：
1）Piece installing：Workpiece is placed in corresponding charging basket according to specification；
2）Pickling：The charging basket that will be equipped with workpiece is placed in pickling tube, at a certain temperature, is taken out after pickling 5-10 minutes；
3）Washing：To be carried out at normal temperatures cleaning 0.5-1 minutes with water through the workpiece of pickling；
4）Neutralization：To be cleaned 0.5-1 minutes with neutralizer at normal temperatures through the workpiece of washing：
5）Deionization is washed：Workpiece is soaked in deionized water 3-5 minutes, the Phosphating Solution of surface of the work is cleaned up, electrical conductivity is the μ S/cm of ＜ 30.
Preferential, step 2）In, the concentration of the described concentrated sulfuric acid is 98%, at 60 DEG C -80 DEG C, to workpiece pickling is carried out.
Preferential, step 4）In, described neutralizer contains 20% phosphate buffer, 10% anhydrous phosphoric acid, 5% potassium dihydrogen phosphate, and remaining is aqueous solvent.
The invention has the beneficial effects as follows, by above processing method, the electrophoretic paint on carbon steel work-piece surface is removed totally, thoroughly, and the outward appearance of workpiece, size will not be impacted.
Specific embodiment
The present invention is carried out according to following processing step：
1）Piece installing：Workpiece is placed in corresponding charging basket according to specification；
2）Pickling：The charging basket that will be equipped with workpiece is placed in pickling tube, and at a temperature of 70 DEG C, pickling is taken out after 10 minutes；
3）Washing：Cleaning 1 minute will be carried out with water at normal temperatures through the workpiece of pickling；
4）Neutralization：To be cleaned with neutralizer at normal temperatures 1 minute through the workpiece of washing：
5）Deionization is washed：Workpiece is soaked in deionized water 5 minutes, the Phosphating Solution of surface of the work is cleaned up, electrical conductivity is the μ S/cm of ＜ 30.
Present invention process step is simple, it is easy to operate, and electrophoretic paint removes clean, thorough, it is ensured that the outward appearance of carbon steel work-piece.
It should be noted that, above example is only to illustrate technical scheme and unrestricted, although being described in detail to the present invention with reference to above-described embodiment, still technical scheme can be modified or equivalent, without deviating from the spirit and scope of technical solution of the present invention, all should cover in the middle of scope of the presently claimed invention.
Claims (1)
1. a kind of method for removing carbon steel work-piece surface electrophoretic paint, it is characterised in that have following technological process：
1）Piece installing：Workpiece is placed in corresponding charging basket according to specification；
2）Pickling：The charging basket that will be equipped with workpiece is placed in pickling tube, at a certain temperature, is taken out after pickling 5-10 minutes；
3）Washing：To be carried out at normal temperatures cleaning 0.5-1 minutes with water through the workpiece of pickling；
4）Neutralization：To be cleaned 0.5-1 minutes with neutralizer at normal temperatures through the workpiece of washing：
5）Deionization is washed：Workpiece is soaked in deionized water 3-5 minutes, the Phosphating Solution of surface of the work is cleaned up, electrical conductivity is the μ S/cm of ＜ 30.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510710577.6A CN106637357A (en) | 2015-10-28 | 2015-10-28 | Method for removing electrophoretic paint on carbon steel workpiece surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510710577.6A CN106637357A (en) | 2015-10-28 | 2015-10-28 | Method for removing electrophoretic paint on carbon steel workpiece surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106637357A true CN106637357A (en) | 2017-05-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510710577.6A Pending CN106637357A (en) | 2015-10-28 | 2015-10-28 | Method for removing electrophoretic paint on carbon steel workpiece surface |
Country Status (1)
| Country | Link |
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| CN (1) | CN106637357A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108296215A (en) * | 2018-03-06 | 2018-07-20 | 中核(天津)科技发展有限公司 | A kind of stripping method of spraying hanging tool |
-
2015
- 2015-10-28 CN CN201510710577.6A patent/CN106637357A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108296215A (en) * | 2018-03-06 | 2018-07-20 | 中核(天津)科技发展有限公司 | A kind of stripping method of spraying hanging tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170510 |
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| WD01 | Invention patent application deemed withdrawn after publication |