CN114525053A - Settling type paint and degumming agent and paint and degumming treatment process - Google Patents
Settling type paint and degumming agent and paint and degumming treatment process Download PDFInfo
- Publication number
- CN114525053A CN114525053A CN202111678190.9A CN202111678190A CN114525053A CN 114525053 A CN114525053 A CN 114525053A CN 202111678190 A CN202111678190 A CN 202111678190A CN 114525053 A CN114525053 A CN 114525053A
- Authority
- CN
- China
- Prior art keywords
- paint
- sedimentation type
- degumming
- type paint
- agent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003973 paint Substances 0.000 title claims abstract description 85
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 38
- 238000011282 treatment Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000004062 sedimentation Methods 0.000 claims abstract description 41
- 239000002904 solvent Substances 0.000 claims abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000003292 glue Substances 0.000 claims abstract description 19
- 150000001335 aliphatic alkanes Chemical class 0.000 claims abstract description 14
- 239000008139 complexing agent Substances 0.000 claims abstract description 8
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 24
- 238000002791 soaking Methods 0.000 claims description 10
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 9
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 8
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 claims description 7
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims description 3
- GDXHBFHOEYVPED-UHFFFAOYSA-N 1-(2-butoxyethoxy)butane Chemical compound CCCCOCCOCCCC GDXHBFHOEYVPED-UHFFFAOYSA-N 0.000 claims description 2
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 claims description 2
- 238000009835 boiling Methods 0.000 claims description 2
- 238000005507 spraying Methods 0.000 abstract description 18
- 239000000843 powder Substances 0.000 abstract description 13
- 229910052751 metal Inorganic materials 0.000 abstract description 8
- 239000002184 metal Substances 0.000 abstract description 8
- 238000003912 environmental pollution Methods 0.000 abstract description 6
- 230000008961 swelling Effects 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 4
- 230000002195 synergetic effect Effects 0.000 abstract description 3
- 238000000053 physical method Methods 0.000 abstract description 2
- 239000002893 slag Substances 0.000 abstract description 2
- 238000004381 surface treatment Methods 0.000 abstract description 2
- 238000004065 wastewater treatment Methods 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 11
- 238000010438 heat treatment Methods 0.000 description 8
- 239000000047 product Substances 0.000 description 8
- 238000004140 cleaning Methods 0.000 description 7
- 238000001035 drying Methods 0.000 description 7
- 239000013049 sediment Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 150000008282 halocarbons Chemical class 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- WVDDGKGOMKODPV-ZQBYOMGUSA-N phenyl(114C)methanol Chemical compound O[14CH2]C1=CC=CC=C1 WVDDGKGOMKODPV-ZQBYOMGUSA-N 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 235000015096 spirit Nutrition 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D9/00—Chemical paint or ink removers
- C09D9/005—Chemical paint or ink removers containing organic solvents
Abstract
The invention belongs to the technical field of metal surface treatment, and discloses a sedimentation type paint and degumming agent and a paint and degumming treatment process, wherein the sedimentation type paint and degumming agent comprises the following components in percentage by volume: 15-25% of strong base, 5-15% of complexing agent, 3-8% of alkane solvent oil, 3-8% of environment-friendly solvent and the balance of water. The sedimentation type paint removing and degumming agent provided by the invention is non-soluble, and paint or powder spraying or glue spraying swelling on the surface of a workpiece is separated from the workpiece after the paint or powder spraying or glue spraying swelling is carried out through the synergistic effect of the components in the formula, and the separated paint slag and the like are directly separated by a physical method, so that the sedimentation type paint removing and degumming agent can be recycled for multiple times, the service life of the sedimentation type paint removing and degumming agent is prolonged, the using amount of the sedimentation type paint removing and degumming agent is reduced, the waste liquid is reduced, the environmental pollution is reduced, and the wastewater treatment cost is reduced.
Description
Technical Field
The invention relates to the technical field of metal surface treatment, in particular to a sedimentation type paint and degumming agent and a paint and degumming treatment process.
Background
The metal is widely applied to a plurality of fields such as automobiles, building materials, 3C electronic products, mobile phones and the like. More and more products pursue fashionable appearance, surface processing treatment is diversified, corrosion resistance is enhanced, spraying, powder spraying or paint spraying is one of necessary processes for obtaining good appearance and ensuring product yield, and when the products are poor in spraying, powder spraying or paint spraying, a paint removing and powder removing cleaning agent is produced.
The conventional paint strippers have the following main disadvantages: (1) the halogenated hydrocarbon is mainly used as a solvent, so that the environmental pollution is great, the ozone layer is damaged, and with the increasing importance of the country on the environmental protection, the halogenated hydrocarbon is used as the main solvent, so that the sewage treatment pressure of enterprises is increased, and the sewage treatment cost is increased; (2) the traditional paint remover mainly adopts a dissolving mode to remove the sprayed powder or the painted paint on the metal surface, thereby causing the short service life of the paint remover and undoubtedly further increasing the environmental pollution and the production cost.
Based on the problems of the prior art, the development of an environment-friendly paint remover with long service life is needed by the research and development personnel in the field.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a sedimentation type paint removing and degumming agent, which can strip the paint or powder spraying on the metal surface in a non-dissolving manner, so that the paint removing agent can be recycled, the service life of the paint removing agent is prolonged, and the environmental pollution and the enterprise cost are reduced.
Another object of the present invention is to provide a method for paint removal using the above-mentioned paint-removing and paint-removing agent
In order to achieve the purpose, the invention adopts the following technical scheme:
a sedimentation type paint and glue removing agent comprises the following components in percentage by volume: 18-22% of strong base, 5-15% of complexing agent, 3-8% of alkane solvent oil, 3-8% of environment-friendly solvent and the balance of water.
Further, the sedimentation type paint and glue removing agent comprises the following components in percentage by volume: 20% of strong base, 10% of complexing agent, 5% of alkane solvent oil, 5% of environment-friendly solvent and the balance of water.
Further, the strong base is at least one of sodium hydroxide, potassium hydroxide and the like.
Further, the complexing agent is at least one of triethanolamine, monoethanolamine, diethanolamine, and the like.
Further, the initial boiling point of the alkane solvent oil is more than 200 ℃, and the density of the alkane solvent oil is less than 0.85g/cm3。
The alkane solvent oil is at least one of D80 solvent oil, D90 solvent oil and the like.
Further, the environment-friendly solvent is at least one of ethylene glycol monobutyl ether, ethylene glycol dibutyl ether and the like.
Further, the volume ratio of the alkane solvent oil to the environment-friendly solvent is 1: 1.
The invention also provides a paint-removing and degumming treatment process adopting the sedimentation type paint-removing and degumming agent,
the paint removal and degumming treatment process comprises the following steps: and (3) immersing the workpiece needing degumming and depainting into the sedimentation type depainting and depainting agent, and soaking for 5-30 min at 75-85 ℃.
Compared with the prior art, the invention has the following advantages:
(1) the invention provides a sedimentation type paint and gel removing agent, which comprises the following components in percentage by volume: 15-25% of strong base, 5-15% of complexing agent, 3-8% of alkane solvent oil, 3-8% of environment-friendly solvent and the balance of water. The sedimentation type paint removing and degumming agent provided by the invention is non-soluble, and paint or powder spraying or glue spraying swelling on the surface of a workpiece is separated from the workpiece after the paint or powder spraying or glue spraying swelling is carried out through the synergistic effect of the components in the formula, and the separated paint slag and the like are directly separated by a physical method, so that the sedimentation type paint removing and degumming agent can be recycled for multiple times, the service life of the sedimentation type paint removing and degumming agent is prolonged, the using amount of the sedimentation type paint removing and degumming agent is reduced, the waste liquid is reduced, the environmental pollution is reduced, and the wastewater treatment cost is reduced.
(2) The paint-removing and degumming treatment process provided by the invention has the characteristics of simple operation, and the specific use method comprises the steps of heating the sedimentation type paint-removing and degumming agent, directly soaking the metal workpiece to be treated in the sedimentation type paint-removing and degumming agent, gradually swelling the paint or powder or glue on the surface of the metal workpiece to a certain extent, enabling the paint or powder or glue to fall off from the metal workpiece, then precipitating to the bottom of the container, fishing and filtering sediments at the bottom of the container by using a filter screen at regular time, collecting the sediments after draining, and uniformly treating the sediments as solid wastes, thereby saving the treatment cost.
Drawings
FIG. 1 is a diagram showing the effect of the sludge after the depainting and degumming treatment is performed on a sample workpiece in example 1 of the present invention;
FIG. 2 is a graph showing the effect of the treating fluid after the sample workpiece is subjected to paint-removing and degumming treatment according to comparative example 1 of the present invention.
Detailed Description
The present invention will be described in further detail below with reference to specific embodiments and examples in conjunction with the accompanying drawings, but the embodiments of the present invention are not limited thereto. All the raw materials and reagents used in the present invention are commercially available raw materials and reagents, unless otherwise specified. In the examples, the components are used in g and mL in parts by mass.
The D80 solvent and the D90 solvent oil adopted in the embodiment of the invention are purchased from China petrochemical metallocene petrochemical company.
In the embodiment and the proportion of the invention, the hanger is adopted as a sample to carry out paint removal and degumming treatment, wherein the hanger is usually made of 316 type stainless steel, has high hardness, corrosion resistance and tensile lifting force, is not easy to bend and has high bearing capacity, then a product to be sprayed is hung on the hanger to carry out paint spraying or powder spraying on the product, and then the product is baked and shaped, the hanger can be sprayed on the product inevitably in the spraying process, and a thick layer of sprayed powder or paint is formed on the hanger in the past.
Example 1
The sedimentation type paint and glue removing agent comprises the following components in percentage by volume: 20% of sodium hydroxide, 10% of triethanolamine, 5% of D80 solvent oil, 5% of ethylene glycol monobutyl ether and the balance of water.
Paint removal and degumming treatment: heating the sedimentation type paint and glue removing agent to 80 ℃, then putting the hanger into the tank, soaking for 20min, taking out the workpiece, cleaning the workpiece with clear water, and drying.
Example 2
The sedimentation type paint and glue removing agent comprises the following components in percentage by volume: 22% of sodium hydroxide, 15% of triethanolamine, 3% of D80 solvent oil, 3% of ethylene glycol monobutyl ether and the balance of water.
Depainting and degumming treatment: heating the sedimentation type paint and glue removing agent to 85 ℃, then putting the hanger into the rack, soaking for 20min, taking out the workpiece, cleaning the workpiece with clear water, and drying.
Example 3
The sedimentation type paint and glue removing agent comprises the following components in percentage by volume: 18% of sodium hydroxide, 5% of triethanolamine, 8% of D80 solvent oil, 8% of ethylene glycol monobutyl ether and the balance of water.
Depainting and degumming treatment: heating the sedimentation type paint and glue removing agent to 80 ℃, then putting the hanger into the tank, soaking for 30min, taking out the workpiece, cleaning the workpiece with clear water, and drying.
Example 4
The sedimentation type paint and glue removing agent comprises the following components in percentage by volume: 20% of potassium hydroxide, 10% of diethanolamine, 5% of D90 solvent oil, 5% of ethylene glycol monobutyl ether and the balance of water.
Depainting and degumming treatment: heating the sedimentation type paint and glue removing agent to 80 ℃, then putting the hanger into the tank, soaking for 20min, taking out the workpiece, cleaning the workpiece with clear water, and drying.
Comparative example 1
The traditional paint remover is adopted and comprises the following components in percentage by volume: 20% of sodium hydroxide, 10% of water for preventing white water, 10% of triethanolamine and the balance of water.
Depainting and degumming treatment: heating the traditional paint remover to 80 ℃, then putting the hanger in the traditional paint remover, soaking for 20min, taking out the workpiece, cleaning the workpiece with clear water, and drying.
Comparative example 2
The composite material comprises the following components in percentage by volume: 25% of sodium hydroxide, 10% of triethanolamine, 5% of D40 solvent oil, 5% of ethylene glycol monobutyl ether and the balance of water.
Depainting and degumming treatment: heating the sedimentation type paint and glue removing agent to 80 ℃, then putting the hanger into the rack, soaking for 20min, taking out the workpiece, cleaning the workpiece with clear water, and drying.
Comparative example 3
The composite material comprises the following components in percentage by volume: 20% of sodium hydroxide, 10% of triethanolamine, 5% of benzyl alcohol, 5% of sodium dodecyl benzene sulfonate and the balance of water.
Depainting and degumming treatment: heating the sedimentation type paint and glue removing agent to 80 ℃, then putting the hanger into the tank, soaking for 20min, taking out the workpiece, cleaning the workpiece with clear water, and drying.
The results of the depainting and degumming agents after the depainting and degumming treatments of examples 1 to 4 and comparative examples 1 to 3 were evaluated, and are specifically shown in table 1.
TABLE 1 results of depainting and degumming treatments of different examples and comparative examples
| Item | Temperature of treatment | Paint removal effect | Whether or not to precipitate | State of paint stripper |
| Example 1 | 80℃ | Complete removal of | Is that | Clear and transparent |
| Example 2 | 80℃ | Complete removal of | Is that | Clear and transparent |
| Example 3 | 75℃ | Complete removal of | Is that | Clear and transparent |
| Example 4 | 80℃ | Slightly remains | Is that | Clear and transparent |
| Comparative example 1 | 80℃ | Complete removal of | Whether or not | Complete turbidity |
| Comparative example 2 | 80℃ | Complete removal of | Is that | Slightly cloudy |
| Comparative example 3 | 80℃ | A little residue | The amount of precipitate is less | Complete turbidity |
As can be seen from the data in Table 1, the paint removing and degumming agent of the embodiment of the invention can keep clear solution after processing samples, and can remove the spray paint on the surface of a hanger in a precipitation manner, as shown in the state of the solution after processing the hanger in the embodiment 1 in FIG. 1, the sediment is precipitated at the bottom of a container, and the solution still keeps clear and transparent; comparative example 1 is a conventional paint remover which is completely a soluble paint remover and can finally remove the painted paint on the surface of the hanger tightly, but the solution is completely turbid after the removal, as shown in fig. 2; comparative example 2 using D40 mineral spirits and a higher level of strong base, whilst also being able to remove the paint from the surface of the hanger, the final solution was slightly cloudy indicating that part of the paint still dissolved in the paint stripper; the comparison result shows that the paint remover in the comparison example 3 can partially dissolve paint residues to ensure that a solvent is turbid when the hanger is removed, and the sedimentation type paint remover provided by the invention can remove the paint on the surface of the hanger in a non-dissolving manner under the synergistic action of specific components and specific dosage proportion, so that the sediments can be directly filtered, and the effect of the paint remover is not greatly influenced, so that the service life of the sedimentation type paint remover can be prolonged, the generation of waste liquid is reduced, and the environmental pollution and the waste liquid treatment cost are reduced.
The above embodiments are the best mode for carrying out the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be regarded as equivalent substitutions and are included in the scope of the present invention.
Claims (10)
1. A sedimentation type paint and glue removing agent is characterized by comprising the following components in percentage by volume: 18-22% of strong base, 5-15% of complexing agent, 3-8% of alkane solvent oil, 3-8% of environment-friendly solvent and the balance of water.
2. A sedimentation type paint stripper as claimed in claim 1, characterized by comprising, in volume percent: 20% of strong base, 10% of complexing agent, 5% of alkane solvent oil, 5% of environment-friendly solvent and the balance of water.
3. A sedimentation type paint stripper as defined in claim 1, characterized in that: the strong base is at least one of sodium hydroxide and potassium hydroxide.
4. A sedimentation type paint stripper as defined in claim 1, characterized in that: the complexing agent is at least one of triethanolamine, monoethanolamine and diethanolamine.
5. A sedimentation type paint stripper as defined in claim 1, characterized in that: the initial boiling point of the alkane solvent oil is more than 200 ℃, and the density of the alkane solvent oil is less than 0.85g/cm3。
6. A sedimentation type paint stripper as defined in claim 5, characterized in that: the alkane solvent oil is at least one of D80 solvent oil and D90 solvent oil.
7. A sedimentation type paint stripper as defined in claim 6, characterized in that: the environment-friendly solvent is at least one of ethylene glycol monobutyl ether and ethylene glycol dibutyl ether.
8. A sedimentation type paint stripper as defined in claim 7, characterized in that: the volume ratio of the alkane solvent oil to the environment-friendly solvent is 1: 1.
9. A paint-removing and degumming treatment process is characterized in that: use of a sedimentation type paint stripper as claimed in any one of claims 1 to 8.
10. The paint stripping and degumming process according to claim 9, comprising the following steps: and (3) immersing the workpiece needing degumming and depainting into the sedimentation type depainting and depainting agent, and soaking for 5-30 min at 75-85 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111678190.9A CN114525053A (en) | 2021-12-31 | 2021-12-31 | Settling type paint and degumming agent and paint and degumming treatment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111678190.9A CN114525053A (en) | 2021-12-31 | 2021-12-31 | Settling type paint and degumming agent and paint and degumming treatment process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114525053A true CN114525053A (en) | 2022-05-24 |
Family
ID=81620707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111678190.9A Pending CN114525053A (en) | 2021-12-31 | 2021-12-31 | Settling type paint and degumming agent and paint and degumming treatment process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114525053A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101139474A (en) * | 2007-10-18 | 2008-03-12 | 珠海顺泽电子实业有限公司 | Printed circuit board green paint scavenging agent and method for producing the same |
| CN101921502A (en) * | 2009-06-11 | 2010-12-22 | 宝山钢铁股份有限公司 | Paint remover for removing cathodic electrophoretic paint film on surface of steel plate |
| CN102634247A (en) * | 2011-02-15 | 2012-08-15 | 关西涂料株式会社 | Method of stripping coated film |
| CN103937322A (en) * | 2014-04-23 | 2014-07-23 | 中国人民解放军第五七一九工厂 | Anhydrous paint remover composition |
| CN110218477A (en) * | 2019-06-13 | 2019-09-10 | 肇庆市哈力化工有限公司 | A kind of ultraviolet-curing paint paint stripper of metal universal and preparation method thereof |
-
2021
- 2021-12-31 CN CN202111678190.9A patent/CN114525053A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101139474A (en) * | 2007-10-18 | 2008-03-12 | 珠海顺泽电子实业有限公司 | Printed circuit board green paint scavenging agent and method for producing the same |
| CN101921502A (en) * | 2009-06-11 | 2010-12-22 | 宝山钢铁股份有限公司 | Paint remover for removing cathodic electrophoretic paint film on surface of steel plate |
| CN102634247A (en) * | 2011-02-15 | 2012-08-15 | 关西涂料株式会社 | Method of stripping coated film |
| CN103937322A (en) * | 2014-04-23 | 2014-07-23 | 中国人民解放军第五七一九工厂 | Anhydrous paint remover composition |
| CN110218477A (en) * | 2019-06-13 | 2019-09-10 | 肇庆市哈力化工有限公司 | A kind of ultraviolet-curing paint paint stripper of metal universal and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101092585A (en) | Process engineering for regenerating deposed lubricating oil | |
| CN1947870A (en) | Method for cleaning waste silicon materials | |
| CN1831052A (en) | Paint remover and method for removing paint from surface of plastic articles | |
| CN113231950B (en) | Environment-friendly CuCr contact surface treatment method | |
| CN112195478A (en) | Environment-friendly metal degreasing agent and preparation method thereof | |
| CN101823804B (en) | Waste water zero emission treatment system for hot-dip galvanizing workshop | |
| CN114525053A (en) | Settling type paint and degumming agent and paint and degumming treatment process | |
| CN110952120B (en) | Aluminum alloy nickel plating pretreatment method | |
| CN106583323A (en) | Efficient and environment-friendly cleaning process for re-manufactured steel part of automotive turbocharger | |
| CN111876199A (en) | Method for recycling waste mineral oil | |
| CN112680017A (en) | Blue film remover and demolding method of mobile phone glass workpiece | |
| CN105668839A (en) | Technology for treating heavy metal waste water through macroalgae | |
| CN109574305A (en) | A kind of application in nanometer of contact break material and its before plating processing of processing Ageing solution | |
| CN112624402A (en) | Copper-containing waste liquid pretreatment process | |
| CN1986892B (en) | Treating process of removing vacuum coating | |
| CN101956192B (en) | Method for treating aluminum alloy trivalent chromium passivation solution waste | |
| CN104762632A (en) | Aluminum alloy forging surface cleaning method | |
| CN2890095Y (en) | Automatic classification treatment device for heavy metal in discharged electroplating solution | |
| CN104098229A (en) | Oil paint waste water treatment method | |
| CN203269690U (en) | Wastewater treatment pipe network | |
| CN204824494U (en) | Glass waste water clean system | |
| CN104496088A (en) | Water-based ink wastewater treatment process | |
| CN109137003A (en) | A kind of nickel plating technology of clipper | |
| CN113046757B (en) | Rust remover, rust remover preparation process and rust removing method for metal surface | |
| CN112920884B (en) | Purifying agent for metal working fluid and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220524 |