CN108486620A - A kind of method that plating is stopped in zinc alloy workpiece inner cavity - Google Patents
A kind of method that plating is stopped in zinc alloy workpiece inner cavity Download PDFInfo
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- CN108486620A CN108486620A CN201810095515.2A CN201810095515A CN108486620A CN 108486620 A CN108486620 A CN 108486620A CN 201810095515 A CN201810095515 A CN 201810095515A CN 108486620 A CN108486620 A CN 108486620A
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- Prior art keywords
- zinc alloy
- alloy workpiece
- cleaning
- method described
- inner cavity
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Classifications
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/02—Electroplating of selected surface areas
Abstract
The present invention relates to a kind of zinc alloy workpiece inner cavities to stop the method plated, and described method includes following steps：Surface of zinc alloy workpiece is cleaned；It is dusted to the zinc alloy workpiece inner cavity after cleaning using mixed type epoxy powder coating；The coating in the zinc alloy workpiece conductiving point region after removal spraying.The method of the present invention can effectively solve the problems, such as that electroplate liquid is polluted in the active metals such as zinc, aluminium；Binding force is good between the type powder and kirsite base material simultaneously, has good acid and alkali-resistance, high-temperature resistant result.
Description
Technical field
The present invention relates to electroplating technologies more particularly to a kind of zinc alloy workpiece inner cavity to stop the method plated.
Background technology
It is conventional stop depositing process be usually used tape, the modes such as waxdip, spray insulation paint, exist in practical operation with
Lower problem：1. tape only applicable plane or regular surfaces, complicated part can not then use；2. all areas of product after waxdip
Domain will all enclose coating of wax, and the region of plated film is needed to dry wax completely only；Due to wax oil not heatproof, the not spies such as acid and alkali-resistance
Property, keep its use scope significantly limited.3. spray insulation paint is currently used mode, due to insulating lacquer layer and metal base
Between adhesive force be not so good as its adhesive force between plastic basis material, commonly used in plastic basis material only plate.
Kirsite can be used for replacing the copper alloy of higher price, be used widely in sanitary ware industry due to price advantage.
Presently used zinc alloy workpiece is generally by the way of compression casting and gravitational casting, to obtain the appearance of smooth, usually
Its outer surface can be mechanically polished to remove surface defect；And workpiece lumen will not do any processing, potential hole in inner cavity
The defects of hole, micro-crack, will bring pollution to follow-up electroplating work procedure, while seriously affect product appearance.Therefore, zinc alloy workpiece
Inner cavity closing is necessary, and especially some especially needed closed of complicated workpiece are only plated.
Chinese invention 200910166879 discloses a kind of filling closure of distant holes on surface of zinc die casting alloy and its preparation method, this is filled out
It includes the single metal or alloy that fusing point is less than kirsite to fill closing；The preparation method is in the kirsite Jing Guo dewaxing, degreasing, de-oiling
Surface imposes low-melting-point metal plating, after reaching target thickness, is dried through rinsing, then melt through anoxybiotic heating table, then through quenching
Processing procedure process, by kirsite after heating dredge hole in gas be discharged, and using melting state surface low-melting-point metal coating
Surface tension infiltration fill kirsite dredge hole, recycle During Quenching to reduce alloy crystal form size, reinforced structure intensity, increase
The leakproofness of work piece surface, the regeneration for avoiding dredging hole.The kirsite material blank method for sealing of the invention is more complicated, and
Sealing of hole is carried out using metal, promotion is not started to the corrosion resistance of of kirsite itself.
Chinese patent 200710182088 discloses a kind of surface treatment method of alloy material, and this method includes to alloy material
Material carries out electrophoretic painting, it is characterised in that, this method further includes first carrying out anodic oxidation to alloy material before electrophoretic painting.
Treated that outer surface of the alloy material after oil paint coating is formed for the surface treatment method for the alloy material that the invention provides
Film layer corrosion resistance and adhesive force it is preferable.It is well known that there is also high/low currents density variation in electrophoresis process,
Workpiece lumen is generally low current density or ultralow current density area, electrophoretic coating deposition too it is thin can cause inner cavity corrosion resistance and
Adhesive force degradation.
Invention content
For the above problem of the prior art, the object of the present invention is to provide a kind of zinc alloy workpiece inner cavities to stop plating
Method can effectively solve the problems, such as that electroplate liquid is polluted in the active metals such as zinc, aluminium；Simultaneously the type powder and kirsite base material it
Between binding force it is good, have good acid and alkali-resistance, high-temperature resistant result.
In order to solve the above-mentioned technical problem, the method plated is stopped in zinc alloy workpiece inner cavity of the invention, and the method includes such as
Lower step：
Surface of zinc alloy workpiece is cleaned；
It is dusted to the zinc alloy workpiece inner cavity after cleaning using mixed type epoxy powder coating；
The coating in the zinc alloy workpiece conductiving point region after removal spraying.
Further, the mode cleaned to surface of zinc alloy workpiece includes plasma clean, Dry ice cleaning, hydrocarbon
It is one or more in cleaning and cleaning agent cleaning.
Further, by mass percentage, the mixed type epoxy powder coating includes following component：Epoxy resin
50-60%, polyester resin 10-20%, curing agent 1-5%, curing accelerator 0.5%, filler 25-35%, auxiliary agent 0.1-1.0% and silane
Coupling agent 0.1-1.0%.
Further, the epoxy resin is bisphenol A type epoxy resin, in E-12 epoxy resin or E-06 epoxy resin
It is one or more；
The curing agent is dicyandiamide and/or dicyandiamide its derivative；
The curing accelerator is one in 2-methylimidazole or imidazole derivative, azepine benzene-series, cyamelide imidazoles
Kind or two kinds；
The filler is titanium dioxide or mica powder；
The auxiliary agent is organosilicon.
Further, cleaning is carried out to zinc alloy surface to specifically include：
Zinc alloy workpiece is put into the alkalescent cleaning agent of 50-70g/L, in 50-70 DEG C of ultrasonic wave electric current 1-5A, temperature condition
Lower cleaning 3-10min；Then it is dried after being rinsed successively with tap water, deionized water.
Further, the tool that dusts is carried out to the zinc alloy workpiece inner cavity after cleaning using mixed type epoxy powder coating
Body includes：
S1, it is dusted to the inner cavity of zinc alloy workpiece using extension rod type spray gun, the extension rod type spray tip bore is 0.5-
1.5mm；Spraying effective distance is 10-200mm；Coating spray volume is 5-20ml/min, and spraying swath bending angle is 0-300, spray gun
Movement speed is 50-300mm/s；
After S2, the end 3-7min that dusts, the powder of zinc alloy workpiece outer surface is removed, baking oven hot setting is then put it into.
Further, in step S1, the extension rod type spray tip bore is 0.5mm, and coating spray volume is 10ml/
Min, spraying swath bending angle are 120, spray gun movement speed is 100mm/s.
Further, in step S2, solidification temperature is 200-300 DEG C, and hardening time is 0.5-2.0 hours.
Further, the solidification temperature is 250 DEG C, and hardening time is 1 hour.
Further, further include to the zinc alloy workpiece charging after casting before being cleaned to surface of zinc alloy workpiece
The leftover pieces of mouth position.
Compared with prior art, the method plated is stopped in a kind of zinc alloy workpiece inner cavity of the invention, has the advantages that：
（1）The present invention using epoxy polyester mixed type powder to zinc alloy workpiece inner cavity carry out insulation processing, can effectively solve zinc,
Pollute the problem of electroplate liquid in the active metals such as aluminium；Binding force is good between the type powder and kirsite base material simultaneously, has very
Acid and alkali-resistance well, high-temperature resistant result.
（2）The present invention process of dusting is attached to the recyclable recycling of powder of other positions, powder using efficiency be up to 90% with
On.
（3）The method of the present invention can effectively improve zinc alloy surface processing yields, reduce non-renewable resources waste, drop
Low processing cost.
Specific implementation mode
The following is a clear and complete description of the technical scheme in the embodiments of the invention, it is clear that described embodiment
Only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
The every other embodiment that art personnel are obtained without making creative work belongs to the model that the present invention protects
It encloses.
Embodiment 1
The present embodiment provides a kind of zinc alloy workpiece inner cavities to stop the method plated, and includes the following steps：
After S1, zinc alloy workpiece casting, the leftover pieces of gating location, upper cleaning hanger are removed；
S2, surface of zinc alloy workpiece is cleaned, removal dust, greasy dirt and releasing agent etc..Surface of zinc alloy workpiece is carried out
The mode of cleaning includes one or more in plasma clean, Dry ice cleaning, hydrocarbon cleaning and cleaning agent cleaning.It is specific clear
Wash bags include：Zinc alloy workpiece is put into alkalescent cleaning agent, the cleaning agent is the special degreaser of kirsite, a concentration of
50-70g/L, ultrasonic wave electric current:1-5A, temperature:50-70 DEG C, the time：3-10min；Then tap water, deionized water are used successively
Rinsing；100 DEG C dry 0.5-1 hours.
S3, it is dusted to the zinc alloy workpiece inner cavity after cleaning using mixed type epoxy powder coating：It will drying
For workpiece transfer to workshop of dusting, the extension rod type spray tip bore is 0.5mm afterwards；Spraying effective distance is 10-200mm；
Coating spray volume is 10ml/min, and spraying swath bending angle is 120, spray gun movement speed is 100mm/s；It dusts after terminating 5min,
Then the powder for removing zinc alloy workpiece outer surface puts it into baking oven and cures 1 hour under the conditions of 250 DEG C of temperature.It is used
Mixed type epoxy powder coating proportioning be epoxy resin 50%, polyester resin 15%, curing agent 3%, curing accelerator 0.5%,
Filler 30%, auxiliary agent 0.8% and silane coupling agent 0.7%.The epoxy resin be bisphenol A type epoxy resin, E-12 epoxy resin or
It is one or more in E-06 epoxy resin；The curing agent is dicyandiamide and/or dicyandiamide its derivative；The solidification promotes
Agent is one or both of 2-methylimidazole or imidazole derivative, azepine benzene-series, cyamelide imidazoles, wherein two
Kind is mixed by equal weight ratio；The filler is titanium dioxide or mica powder；The auxiliary agent is organosilicon.
S4, after its cooling, be transferred to engineering shop, original set into the powder in plated conductive point region with cutter
Last layer removes, and keeps conductiving point region zinc-base material exposed.Since electroplating process needs conductiving point being placed at the non-appearance face of product
（Usually product cavity marginal position）, therefore by mechanical processing, the coating in conductiving point region is removed, it is conductive to solve product
Problem.
S5 and then the outer surface of workpiece of mechanical processing is processed by shot blasting again.
Plating line is transferred them to after S6, polishing to be electroplated.
Embodiment 2
The present embodiment provides a kind of zinc alloy workpiece inner cavities to stop the method plated, and includes the following steps：
After S1, zinc alloy workpiece casting, the leftover pieces of gating location, upper cleaning hanger are removed；
S2, surface of zinc alloy workpiece is cleaned, removal dust, greasy dirt and releasing agent etc..Surface of zinc alloy workpiece is carried out
The mode of cleaning includes one or more in plasma clean, Dry ice cleaning, hydrocarbon cleaning and cleaning agent cleaning.It is specific clear
Wash bags include：Zinc alloy workpiece is put into alkalescent cleaning agent, the cleaning agent is the special degreaser of kirsite, a concentration of
50-70g/L, ultrasonic wave electric current:1-5A, temperature:50-70 DEG C, the time：3-10min；Then tap water, deionized water are used successively
Rinsing；100 DEG C dry 0.5-1 hours.
S3, it is dusted to the zinc alloy workpiece inner cavity after cleaning using mixed type epoxy powder coating：It will drying
For workpiece transfer to workshop of dusting, the extension rod type spray tip bore is 1mm afterwards；Spraying effective distance is 10-200mm；It applies
Material spray volume is 5ml/min, and spraying swath bending angle is 00, spray gun movement speed is 50mm/s；It dusts after terminating 3min, removes dezincify
Then the powder of alloy workpiece outer surface puts it into baking oven and cures 0.5 hour under the conditions of 200 DEG C of temperature.Use mixing
Type epoxy powder coating formula is epoxy resin 55%, polyester resin 10%, curing agent 1%, curing accelerator 0.5%, filler
25%, auxiliary agent 0.1% and silane coupling agent 0.1%.The epoxy resin is bisphenol A type epoxy resin, E-12 epoxy resin or E-06
It is one or more in epoxy resin；The curing agent is dicyandiamide and/or dicyandiamide its derivative；The curing accelerator is
One or both of 2-methylimidazole or imidazole derivative, azepine benzene-series, cyamelide imidazoles, wherein two kinds are pressed
Equal weight ratio mixing；The filler is titanium dioxide or mica powder；The auxiliary agent is organosilicon.
S4, after its cooling, be transferred to engineering shop, original set into the powder in plated conductive point region with cutter
Last layer removes, and keeps conductiving point region zinc-base material exposed.Since electroplating process needs conductiving point being placed at the non-appearance face of product
（Usually product cavity marginal position）, therefore by mechanical processing, the coating in conductiving point region is removed, it is conductive to solve product
Problem.
S5 and then the outer surface of workpiece of mechanical processing is processed by shot blasting again.
Plating line is transferred them to after S6, polishing to be electroplated.
Embodiment 3
The present embodiment provides a kind of zinc alloy workpiece inner cavities to stop the method plated, and includes the following steps：
After S1, zinc alloy workpiece casting, the leftover pieces of gating location, upper cleaning hanger are removed；
S2, surface of zinc alloy workpiece is cleaned, removal dust, greasy dirt and releasing agent etc..Surface of zinc alloy workpiece is carried out
The mode of cleaning includes one or more in plasma clean, Dry ice cleaning, hydrocarbon cleaning and cleaning agent cleaning.It is specific clear
Wash bags include：Zinc alloy workpiece is put into alkalescent cleaning agent, the cleaning agent is the special degreaser of kirsite, a concentration of
50-70g/L, ultrasonic wave electric current:1-5A, temperature:50-70 DEG C, the time：3-10min；Then tap water, deionized water are used successively
Rinsing；100 DEG C dry 0.5-1 hours.
S3, it is dusted to the zinc alloy workpiece inner cavity after cleaning using mixed type epoxy powder coating：It will drying
For workpiece transfer to workshop of dusting, the extension rod type spray tip bore is 1.5mm afterwards；Spraying effective distance is 10-200mm；
Coating spray volume is 20ml/min, and spraying swath bending angle is 300, spray gun movement speed is 300mm/s；It dusts after terminating 7min,
Then the powder for removing zinc alloy workpiece outer surface puts it into baking oven and cures 2.0 hours under the conditions of 300 DEG C of temperature.Made
It is epoxy resin 60%, polyester resin 20%, curing agent 5%, curing accelerator with mixed type epoxy powder coating proportioning
0.5%, filler 35%, auxiliary agent 1.0% and silane coupling agent 1.0%.The epoxy resin is bisphenol A type epoxy resin, E-12 epoxies
It is one or more in resin or E-06 epoxy resin；The curing agent is dicyandiamide and/or dicyandiamide its derivative；It is described solid
Change accelerating agent be one or both of 2-methylimidazole or imidazole derivative, azepine benzene-series, cyamelide imidazoles,
In, it presses equal weight ratio for two kinds and mixes；The filler is titanium dioxide or mica powder；The auxiliary agent is organosilicon.
S4, after its cooling, be transferred to engineering shop, original set into the powder in plated conductive point region with cutter
Last layer removes, and keeps conductiving point region zinc-base material exposed.Since electroplating process needs conductiving point being placed at the non-appearance face of product
（Usually product cavity marginal position）, therefore by mechanical processing, the coating in conductiving point region is removed, it is conductive to solve product
Problem.
S5 and then the outer surface of workpiece of mechanical processing is processed by shot blasting again.
Plating line is transferred them to after S6, polishing to be electroplated.
As a result it tests
It zinc alloy workpiece inner cavity can be by following testing standard by dusting：
（1）Salt spray test, AASS 48 hours, does not have corrosion phenomenon；Testing standard：ASTM G85-09.
（2）Thermal quenching test, 150 DEG C * 1 hour, will not blister or peel；Testing standard：ASTM B571-97.
（3）Cross-cut tester is tested, and coating reaches 4A or more；Testing standard：ASME A112.18.1-2005/CSA,
B125.1-05, ASTM D3359-02.
（4）Chemical resistance test, A, 6N sodium hydroxide；B, 6N ammonium hydroxide；C, methanol；D, surfactant (nonionic;
100% polyethylene oxyethanol), no blistering is shunk, disbonding or base material corrosion；Testing standard：ASME
A112.18.1-2005/CSA B125.1-05。
（5）Water logging is tested, and is impregnated 24 ± 0.5 hours in 38 ± 1 DEG C of warm water, and coating is without blistering, contraction, disbonding or
Base material corrodes；Testing standard：ASME A112.18.1-2005/CSA B125.1-05.
The method plated is stopped in a kind of zinc alloy workpiece inner cavity of the present invention, has the advantages that：
（1）Insulation processing is carried out to zinc alloy workpiece inner cavity using epoxy polyester mixed type powder, it is living can effectively to solve zinc, aluminium etc.
The problem of sprinkling metallic pollution electroplate liquid；Binding force is good between the type powder and kirsite base material simultaneously, has resistance to well
Soda acid, high-temperature resistant result.
（2）The process of dusting is attached to the recyclable recycling of powder of other positions, and powder using efficiency is up to 90% or more.
（3）The method of the present invention can effectively improve zinc alloy surface processing yields, reduce non-renewable resources waste, drop
Low processing cost.
Above description has fully disclosed the specific implementation mode of the present invention.It should be pointed out that being familiar with the field
Technical staff is to any change for being done of specific implementation mode of the present invention all without departing from the range of claims of the present invention.
Correspondingly, the scope of the claims of the invention is also not limited only to previous embodiment.
Claims (10)
1. the method plated is stopped in a kind of zinc alloy workpiece inner cavity, which is characterized in that described method includes following steps：
Surface of zinc alloy workpiece is cleaned；
It is dusted to the zinc alloy workpiece inner cavity after cleaning using mixed type epoxy powder coating；
The coating in the zinc alloy workpiece conductiving point region after removal spraying.
2. according to the method described in claim 1, it is characterized in that, the mode cleaned to surface of zinc alloy workpiece includes etc.
It is one or more in gas ions cleaning, Dry ice cleaning, hydrocarbon cleaning and cleaning agent cleaning.
3. according to the method described in claim 1, it is characterized in that, by mass percentage, the mixed type epoxy powder
Coating includes following component：Epoxy resin 50-60%, polyester resin 10-20%, curing agent 1-5%, curing accelerator 0.5%, filler
25-35%, auxiliary agent 0.1-1.0% and silane coupling agent 0.1-1.0%.
4. according to the method described in claim 3, it is characterized in that,
The epoxy resin is bisphenol A type epoxy resin, one or more in E-12 epoxy resin or E-06 epoxy resin；
The curing agent is dicyandiamide and/or dicyandiamide its derivative；
The curing accelerator is one in 2-methylimidazole or imidazole derivative, azepine benzene-series, cyamelide imidazoles
Kind or two kinds；
The filler is titanium dioxide or mica powder；
The auxiliary agent is organosilicon.
5. according to the method described in claim 1, being specifically included it is characterized in that, carrying out cleaning to zinc alloy surface：
Zinc alloy workpiece is put into the alkalescent cleaning agent of 50-70g/L, in 50-70 DEG C of ultrasonic wave electric current 1-5A, temperature condition
Lower cleaning 3-10min；Then it is dried after being rinsed successively with tap water, deionized water.
6. according to the method described in claim 1, it is characterized in that, using mixed type epoxy powder coating to cleaning after
Zinc alloy workpiece inner cavity dust specifically including：
S1, it is dusted to the inner cavity of zinc alloy workpiece using extension rod type spray gun, the extension rod type spray tip bore is 0.5-
1.5mm；Spraying effective distance is 10-200mm；Coating spray volume is 5-20ml/min, and spraying swath bending angle is 0-300, spray gun
Movement speed is 50-300mm/s；
After S2, the end 3-7min that dusts, the powder of zinc alloy workpiece outer surface is removed, baking oven hot setting is then put it into.
7. according to the method described in claim 6, it is characterized in that, in step S1, the extension rod type spray tip bore is
0.5mm, coating spray volume are 10ml/min, and spraying swath bending angle is 120, spray gun movement speed is 100mm/s.
8. according to the method described in claim 6, it is characterized in that, in step S2, solidification temperature is 200-300 DEG C, when solidification
Between be 0.5-2.0 hours.
9. according to the method described in claim 8, it is characterized in that, the solidification temperature is 250 DEG C, hardening time is 1 hour.
10. according to the method described in claim 6, it is characterized in that, also being wrapped before being cleaned to surface of zinc alloy workpiece
Include the leftover pieces to the zinc alloy workpiece gating location after casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810095515.2A CN108486620A (en) | 2018-01-31 | 2018-01-31 | A kind of method that plating is stopped in zinc alloy workpiece inner cavity |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810095515.2A CN108486620A (en) | 2018-01-31 | 2018-01-31 | A kind of method that plating is stopped in zinc alloy workpiece inner cavity |
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ID=63343998
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1217393A (en) * | 1997-11-07 | 1999-05-26 | 连贻平 | Decorative plate with pattern formed on metal plate and producing method therefor |
| CN1632174A (en) * | 2004-11-09 | 2005-06-29 | 徐菁 | Electroplating isolation glue |
| CN1834173A (en) * | 2005-03-16 | 2006-09-20 | 嘉善维克托塑化有限公司 | Insulating electrostatic powdered paint and its prodn. technique |
| CN102653642A (en) * | 2012-04-27 | 2012-09-05 | 中国铝业股份有限公司 | Insulating paint for changing current distribution of cathode |
| CN103289532A (en) * | 2013-07-05 | 2013-09-11 | 河北工业大学 | Preparation method of epoxy powder coating highly resisting cathodic disbonding |
| CN103361686A (en) * | 2013-07-24 | 2013-10-23 | 北京亿海腾模型工业有限公司 | Method for processing chromeplate effect on outer surface of cellphone model product |
| CN103774189A (en) * | 2014-01-10 | 2014-05-07 | 今创集团股份有限公司 | Process method of composite surface treatment with chromium plating and water-transfer printing |
| CN105442005A (en) * | 2015-12-01 | 2016-03-30 | 上海交通大学 | Localized electro-deposition method for achieving material surface texturing |
| CN105860765A (en) * | 2016-06-08 | 2016-08-17 | 合肥市燕美粉末涂料有限公司 | High-temperature-resistant powder paint and preparation method thereof |
| CN106752759A (en) * | 2016-11-22 | 2017-05-31 | 天长市金陵电子有限责任公司 | A kind of electrostatic spraying special low temperature cured powder paint and preparation method thereof |
| CN106757177A (en) * | 2016-12-12 | 2017-05-31 | 株洲冶炼集团股份有限公司 | A kind of preparation method of the anti-corrosion zinc cathode aluminum plate of band coating |
-
2018
- 2018-01-31 CN CN201810095515.2A patent/CN108486620A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1217393A (en) * | 1997-11-07 | 1999-05-26 | 连贻平 | Decorative plate with pattern formed on metal plate and producing method therefor |
| CN1632174A (en) * | 2004-11-09 | 2005-06-29 | 徐菁 | Electroplating isolation glue |
| CN1834173A (en) * | 2005-03-16 | 2006-09-20 | 嘉善维克托塑化有限公司 | Insulating electrostatic powdered paint and its prodn. technique |
| CN102653642A (en) * | 2012-04-27 | 2012-09-05 | 中国铝业股份有限公司 | Insulating paint for changing current distribution of cathode |
| CN103289532A (en) * | 2013-07-05 | 2013-09-11 | 河北工业大学 | Preparation method of epoxy powder coating highly resisting cathodic disbonding |
| CN103361686A (en) * | 2013-07-24 | 2013-10-23 | 北京亿海腾模型工业有限公司 | Method for processing chromeplate effect on outer surface of cellphone model product |
| CN103774189A (en) * | 2014-01-10 | 2014-05-07 | 今创集团股份有限公司 | Process method of composite surface treatment with chromium plating and water-transfer printing |
| CN105442005A (en) * | 2015-12-01 | 2016-03-30 | 上海交通大学 | Localized electro-deposition method for achieving material surface texturing |
| CN105860765A (en) * | 2016-06-08 | 2016-08-17 | 合肥市燕美粉末涂料有限公司 | High-temperature-resistant powder paint and preparation method thereof |
| CN106752759A (en) * | 2016-11-22 | 2017-05-31 | 天长市金陵电子有限责任公司 | A kind of electrostatic spraying special low temperature cured powder paint and preparation method thereof |
| CN106757177A (en) * | 2016-12-12 | 2017-05-31 | 株洲冶炼集团股份有限公司 | A kind of preparation method of the anti-corrosion zinc cathode aluminum plate of band coating |
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Application publication date: 20180904 |