CN103540990A - Coating method - Google Patents
Coating method Download PDFInfo
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- CN103540990A CN103540990A CN201310477083.9A CN201310477083A CN103540990A CN 103540990 A CN103540990 A CN 103540990A CN 201310477083 A CN201310477083 A CN 201310477083A CN 103540990 A CN103540990 A CN 103540990A
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Abstract
The invention relates to the technical field of mechanical processing, and specifically relates to a coating method. The method comprises the steps that: surface galvanization is carried out upon a welded workpiece; the galvanized surface of the workpiece is subjected to a phosphorization treatment; organic zinc epoxy powder is coated and cured on the phosphorized workpiece surface; and blue and white porcelain powder is coated and cured on the workpiece surface with the coated and cured organic zinc epoxy powder. According to the coating method provided by the invention, the four coating layers of the zinc layer, the phosphorization layer, the organic zinc epoxy powder layer, and the organic zinc epoxy powder layer with good corrosion resistance and high hardness are coated on the surface of the workpiece. The coating process involves no pickling process. The coating is thicker compared with a coating formed by coating with an electrophoresis technology in prior art, and is not easy to fall under external impact. Therefore, compared with prior art, workpiece service life can be prolonged.
Description
Technical field
The present invention relates to Machining Technology field, in particular to a kind of coating process.
Background technology
Existing coating process generally adopts electrophoretic technique to carry out application.When using electrophoretic technique to carry out application to workpiece, the work in-process of workpiece must be first by carrying out the follow-up step of application after rust cleaning pickling.But work in-process workpiece is after overpickling, and its antiseptic property will reduce more than one times, thereby caused the easier corrosion of workpiece of carrying out application through the method for electrophoresis, the work-ing life of reducing workpiece.And when using electrophoretic technique to carry out application japanning to workpiece, being subject to the impact of voltage, workpiece varnishing is thin, its lacquer painting is in use easily destroyed, workpiece can be come out, and the part that workpiece exposes contacts with air, more easily corrosion, has reduced work-ing life of workpiece.
Summary of the invention
The object of the present invention is to provide a kind of coating process, to solve the above problems.
A kind of coating process is provided in an embodiment of the present invention, has comprised:
The workpiece surface having welded is zinc-plated;
Workpiece surface after zinc-plated is done to bonderizing;
Workpiece surface application after bonderizing is also solidified organic zinc epoxy powder;
Workpiece surface application after application curing organic zinc epoxy powder is also solidified bule and white porcelain powder.
The coating process of the above embodiment of the present invention, need to be zinc-plated respectively according to sequencing on the surface of workpiece, bonderizing, application is also solidified organic zinc epoxy powder and application curing bule and white porcelain powder, workpiece with this coating process application, due to the plated surface at workpiece one deck zinc, make erosion resistance and the rust-preventing characteristic of workpiece better, due to the workpiece after zinc-plated has been done to bonderizing, bonderizing can adhere to one deck phosphatize phosphate coat at workpiece surface, play protection workpiece, improve erosion resistance and antirust effect, and while making follow-up application, coating material has better sticking power.Organic zinc epoxy powder can make the erosion resistance of workpiece surface and rust resistance better, and because organic zinc epoxy powder is after overcuring, hardness is larger, is not easy because extraneous shock comes off while being attached on workpiece.The last processing of again workpiece being carried out application and solidifying bule and white porcelain powder, bule and white porcelain powder is a kind of of Hubei Wan Bang novel material company limited production, have nontoxic, acidproof, alkaline-resisting and there is the coating material of good decorative effect, by epoxy resin, vibrin, auxiliary agent, color stuffing and silver powder, mixed, application is also solidificated in after workpiece surface, is not easy to come off under extraneous shock, and protection against corrosion favorable rust preventing effect.To sum up, in coating process provided by the present invention, good in the external coating erosion resistance of workpiece, the zinc layer that hardness is large, phosphate coating, organic zinc epoxy bisque and four layers of coating layer of bule and white porcelain bisque, coating process can not relate to the process of pickling, and when the middle compared to prior art employing electrophoretic technique of coating is carried out application, formed coating is thicker, is not easy to come off under extraneous shock, thereby compared to prior art, can extend the work-ing life of workpiece.
Accompanying drawing explanation
Fig. 1 shows the schema of the coating process that the embodiment of the present invention one provides;
Fig. 2 shows the schema of the coating process that the embodiment of the present invention two provides.
Embodiment
For making object, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Below by specific embodiment, also by reference to the accompanying drawings the present invention is described in further detail.
Embodiment mono-:
Fig. 1 is the schema of the coating process that provides of the embodiment of the present invention one.Shown in Figure 1, a kind of coating process, comprising:
Step 101: the workpiece surface having welded is zinc-plated;
Step 102: the workpiece surface after zinc-plated is done to bonderizing;
Step 103: the workpiece surface application after bonderizing is also solidified organic zinc epoxy powder;
Step 104: the workpiece surface application after application curing organic zinc epoxy powder is also solidified bule and white porcelain powder.
In the coating process providing at the present embodiment one, need to be zinc-plated respectively according to sequencing on the surface of workpiece, bonderizing, application is also solidified organic zinc epoxy powder and application curing bule and white porcelain powder, workpiece with this coating process application, due to the plated surface at workpiece one deck zinc, make erosion resistance and the rust-preventing characteristic of workpiece better, due to the workpiece after zinc-plated has been done to bonderizing, bonderizing can adhere to one deck phosphatize phosphate coat at workpiece surface, play protection workpiece, improve erosion resistance and antirust effect, and while making follow-up application, coating material has better sticking power.Organic zinc epoxy powder can make the erosion resistance of workpiece surface and rust resistance better, and because organic zinc epoxy powder is after overcuring, hardness is larger, is not easy because extraneous shock comes off while being attached on workpiece.The last processing of again workpiece being carried out application and solidifying bule and white porcelain powder, bule and white porcelain powder is a kind of of Hubei Wan Bang novel material company limited production, have nontoxic, acidproof, alkaline-resisting and there is the coating material of good decorative effect, by epoxy resin, vibrin, auxiliary agent, color stuffing and silver powder, mixed, application is also solidificated in after workpiece surface, is not easy to come off under extraneous shock, and protection against corrosion favorable rust preventing effect.To sum up, in coating process provided by the present invention, good in the external coating erosion resistance of workpiece, the zinc layer that hardness is large, phosphate coating, organic zinc epoxy bisque and four layers of coating layer of bule and white porcelain bisque, coating process can not relate to the process of pickling, and when the middle compared to prior art employing electrophoretic technique of coating is carried out application, formed coating is thicker, is not easy to come off under extraneous shock, thereby compared to prior art, can extend the work-ing life of workpiece.
In each embodiment of the present invention, preferably, described the workpiece surface having welded is also comprised before zinc-plated: adopt gas protection welding process welding work pieces.
When using gas protection welding process to weld, can not damage the surface of workpiece, thus more not obvious than other welding technique at the left scar of workpiece surface, the convenient enforcement to subsequent process.
In each embodiment of the present invention, preferably, after described welding work pieces, also comprise: remove the scar after workpiece welding; The surface dressing of removing the workpiece after scar is smooth; Workpiece after effects on surface arrangement is smooth carries out sealing detection.
Because workpiece is in welding, may scar, therefore, after workpiece is welded, also need to remove the formed scar of welding.And because workpiece is to have the steel such as steel plate to make, steel, in the process of manufacturing, transporting, can form certain deformation, thereby need to be after workpiece welds, the surface dressing of workpiece is smooth.Because the workpiece of welding is for multiple fields, when using workpiece just to require the weld seam on workpiece must there is no sealing during contain fluid in workpiece, cooking and heating furnace for example, the sidewall of stove will have water flow, thereby need to carry out sealing detection to workpiece.
In each embodiment of the present invention, preferably, described that the workpiece surface having welded is zinc-plated, and described workpiece surface after zinc-plated is done between bonderizing and also comprised: the workpiece of surface galvanizing is carried out to surface finish arrangement.
The workpiece surface of surface galvanizing is carried out to polished finish, due in zinc-plated to workpiece, zinc layer possibly cannot be evenly distributed in workpiece surface completely, thereby in follow-up coating process, every one deck coating layer is all smooth, therefore the workpiece surface after zinc-plated need to be carried out to polished finish, make workpiece no matter be that naked eyes are seen, or with hand, touch all very level and smooth.
In each embodiment of the present invention, preferably, the described workpiece of surface galvanizing is carried out, after surface finish arrangement, also comprise: by the workpiece degreasing of carrying out after surface finish arrangement; Use clear water to clean the workpiece after degreasing.
Owing to making the material of workpiece and mechanically all having machinery oil, therefore, at the residual certain machinery oil of the surface of workpiece meeting, can affect in follow-up coating process the sticking power of coating layer on workpiece.Thereby the workpiece after surface finish need to being arranged carries out skimming treatment.Skimming treatment is generally used grease-removing agent to soak workpiece, removes the greasy dirt of workpiece surface, thereby after degreasing, and the workpiece after also needing to use clear water to degreasing cleans, and washes away the grease-removing agent of workpiece surface and residual greasy dirt.General this cleaning comprises at least twice cleaning, like this, can guarantee fully that the greasy dirt of workpiece surface and grease-removing agent are eliminated totally.
In each embodiment of the present invention, preferably, describedly workpiece surface after zinc-plated is done to bonderizing be specially: use table is adjusted the surface of workpiece is adjusted; The workpiece carrying out after surface is adjusted is done to bonderizing.
Use table is adjusted the surface of workpiece is adjusted, and table is adjusted and can be formed protective filmy layer on the surface of workpiece, and phosphate coating can be better attached on workpiece.
In each embodiment of the present invention, preferably, described, workpiece surface after zinc-plated is done to bonderizing, and also comprise between the described also curing organic zinc epoxy powder of workpiece surface application after bonderizing: the workpiece after bonderizing is washed away in cold water to the phosphatization slag that is attached to workpiece surface; The workpiece washing away after phosphatization slag is cleaned in more than 60 ℃ hot water.
Because workpiece is in the process of phosphatization, may be at the remained on surface phosphatization slag of workpiece, thereby smooth for after the external coating of workpiece, need in cold water, phosphatization slag be washed.Re-use 60 ℃ of above hot water workpiece is cleaned, can make dry faster of bonderizing formed phosphatize phosphate coat on workpiece surface, thereby make phosphatize phosphate coat on workpiece can better be adsorbed on the surface of workpiece.
In each embodiment of the present invention, preferably, described workpiece surface application after bonderizing curing organic zinc epoxy powder are specially:
At external coating one deck organic zinc epoxy powder of described workpiece, and dry at the temperature of 200 ℃;
Use solidifying agent to be cured processing to the organic zinc epoxy powder on workpiece.
Organic zinc epoxy powder is Powdered on being sprayed onto the surface of workpiece time, and organic zinc epoxy powder melts in more than 200 ℃, and be attached to the surface of workpiece, and then re-use solidifying agent and be cured being melted in workpiece surface organic zinc epoxy powder, can make the better sclerosis of organic zinc epoxy powder and more firmly be attached to the surface of workpiece.
In each embodiment of the present invention, preferably, described workpiece surface application curing bule and white porcelain powder after application curing organic zinc epoxy powder is specially:
Workpiece surface application bule and white porcelain powder after application curing organic zinc epoxy powder;
Use solidifying agent to be cured the bule and white porcelain powder of workpiece surface institute application.
In each embodiment of the present invention, preferably, described workpiece surface application after application curing organic zinc epoxy powder also comprises after also solidifying bule and white porcelain powder:
Workpiece after application curing bule and white porcelain powder is toasted at the temperature of at least 200 ℃;
The time of described baking is 1.8 hours-2.2 hours.
After four layers of coating layer are all coated with and install on workpiece, at more than 200 ℃ temperature, to workpiece baking 1.8 hours-2.2 hours, four layers of coating layer are further solidificated in to the surface of workpiece, make the more firm difficult drop-off of coating layer on workpiece, antiseptic and rustproof effect is stronger.Like this, four layers of coating layer are carried out to hot setting, make to use the workpiece of coating process provided by the present invention institute application than using the workpiece of prior art institute application to possess better high temperature resistant, corrosion resistance characteristic.
Simultaneously by coating repeatedly, solidify, after hot setting, not only make coating layer firm, strengthen antiseptic and rustproof effect, can also make simultaneously bule and white porcelain powder coating layer gloss bright clean, oily dirt free is dirty, is easy to cleaning.
Fig. 2 shows the schema of the coating process that the embodiment of the present invention two provides, and shown in Figure 2, the coating process that the present embodiment two provides comprises:
Step 201: adopt gas protection welding process welding work pieces;
Step 202: remove the scar after workpiece welding;
Step 203: the surface dressing of removing the workpiece after scar is smooth;
Step 204: the workpiece after effects on surface arrangement is smooth carries out sealing detection;
Step 205: the workpiece surface having welded is zinc-plated;
Step 206: the workpiece of surface galvanizing is carried out to surface finish arrangement;
Step 207: by the workpiece degreasing of carrying out after surface finish arrangement;
Step 208: use clear water to clean the workpiece after degreasing;
Step 209: use table is adjusted the surface of workpiece is adjusted;
Step 210: the workpiece carrying out after surface is adjusted is done to bonderizing;
Step 211: the workpiece after bonderizing is washed away in cold water to the phosphatization slag that is attached to workpiece surface;
Step 212: the workpiece that washes away phosphatization slag is cleaned in more than 60 ℃ hot water;
Step 213: at external coating one deck organic zinc epoxy powder of described workpiece, and dry at the temperature of 200 ℃;
Step 214: use solidifying agent to be cured processing to the organic zinc epoxy powder on workpiece;
Step 215: the workpiece surface application bule and white porcelain powder after application curing organic zinc epoxy powder;
Step 216: use solidifying agent to be cured the bule and white porcelain powder of workpiece surface institute application;
Step 217: the workpiece after application curing bule and white porcelain powder is toasted at the temperature of at least 200 ℃;
The time of described baking is 1.8 hours-2.2 hours.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a coating process, is characterized in that, comprising:
The workpiece surface having welded is zinc-plated;
Workpiece surface after zinc-plated is done to bonderizing;
Workpiece surface application after bonderizing is also solidified organic zinc epoxy powder;
Workpiece surface application after application curing organic zinc epoxy powder is also solidified bule and white porcelain powder.
2. a kind of coating process according to claim 1, is characterized in that, described the workpiece surface having welded is also comprised before zinc-plated:
Adopt gas protection welding process welding work pieces.
3. a kind of coating process according to claim 2, is characterized in that, after described welding work pieces, also comprises:
Remove the scar after workpiece welding;
The surface dressing of removing the workpiece after scar is smooth;
Workpiece after effects on surface arrangement is smooth carries out sealing detection.
4. a kind of coating process according to claim 1, is characterized in that, described that the workpiece surface having welded is zinc-plated, and described workpiece surface after zinc-plated is done between bonderizing and also comprised:
The workpiece of surface galvanizing is carried out to surface finish arrangement.
5. a kind of coating process according to claim 4, is characterized in that, the described workpiece of surface galvanizing is carried out, after surface finish arrangement, also comprises:
By the workpiece degreasing of carrying out after surface finish arrangement;
Use clear water to clean the workpiece after degreasing.
6. according to a kind of coating process described in claim 1-5 any one, it is characterized in that, describedly workpiece surface after zinc-plated is done to bonderizing be specially:
Use table is adjusted the surface of workpiece is adjusted;
The workpiece carrying out after surface is adjusted is done to bonderizing.
7. according to a kind of coating process described in claim 1-5 any one, it is characterized in that, described, workpiece surface after zinc-plated done to bonderizing, and also comprise between the described also curing organic zinc epoxy powder of workpiece surface application after bonderizing:
Workpiece after bonderizing is washed away in cold water to the phosphatization slag that is attached to workpiece surface;
The workpiece washing away after phosphatization slag is cleaned in more than 60 ℃ hot water.
8. according to a kind of coating process described in claim 1-5 any one, it is characterized in that, described workpiece surface application after bonderizing curing organic zinc epoxy powder are specially:
At external coating one deck organic zinc epoxy powder of described workpiece, and dry at the temperature of 200 ℃;
Use solidifying agent to be cured processing to the organic zinc epoxy powder on workpiece.
9. according to a kind of coating process described in claim 1-5 any one, it is characterized in that, described workpiece surface application curing bule and white porcelain powder after application curing organic zinc epoxy powder is specially:
Workpiece surface application bule and white porcelain powder after application curing organic zinc epoxy powder;
Use solidifying agent to be cured the bule and white porcelain powder of workpiece surface institute application.
10. according to a kind of coating process described in claim 1-5 any one, it is characterized in that, described workpiece surface application after application curing organic zinc epoxy powder also comprises after also solidifying bule and white porcelain powder:
Workpiece after application curing bule and white porcelain powder is toasted at the temperature of at least 200 ℃;
The time of described baking is 1.8 hours-2.2 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310477083.9A CN103540990B (en) | 2013-10-12 | 2013-10-12 | A kind of blue and white porcelain coating process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310477083.9A CN103540990B (en) | 2013-10-12 | 2013-10-12 | A kind of blue and white porcelain coating process |
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| CN103540990A true CN103540990A (en) | 2014-01-29 |
| CN103540990B CN103540990B (en) | 2017-03-29 |
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| CN201310477083.9A Expired - Fee Related CN103540990B (en) | 2013-10-12 | 2013-10-12 | A kind of blue and white porcelain coating process |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105624766A (en) * | 2015-12-21 | 2016-06-01 | 中磁科技股份有限公司 | Electrophoretic coating technology of neodymium iron boron products |
| CN107262348A (en) * | 2017-06-17 | 2017-10-20 | 山西银河镀锌有限公司 | A kind of method for composite coating of galvanizing flange |
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| CN1278288A (en) * | 1997-11-05 | 2000-12-27 | 亨克尔两合股份公司 | Conductive organic coatings |
| CN1718931A (en) * | 2005-07-23 | 2006-01-11 | 徐州正菱涂装有限公司 | Reforming method of old express way guard plate |
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| CN101892766A (en) * | 2010-07-13 | 2010-11-24 | 张家港固耐特围栏***有限公司 | Surface modified fence |
| CN102330852A (en) * | 2011-07-26 | 2012-01-25 | 广东联塑科技实业有限公司 | Piping material with zinc plated at outer part and plastic coated at inner part as well as production process of same |
| CN102839898A (en) * | 2011-06-22 | 2012-12-26 | 杜联合 | Zinc-steel fixed louver and vertical hinged louver |
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2013
- 2013-10-12 CN CN201310477083.9A patent/CN103540990B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0544057A (en) * | 1991-08-08 | 1993-02-23 | Kobe Steel Ltd | Surface treated al or al-alloy material excellent in press formability and corrosion resistance after coating |
| CN1278288A (en) * | 1997-11-05 | 2000-12-27 | 亨克尔两合股份公司 | Conductive organic coatings |
| CN1227278A (en) * | 1997-11-11 | 1999-09-01 | 川崎制铁株式会社 | Porcelain-enameled steel sheets and frits for enameling |
| CN1718931A (en) * | 2005-07-23 | 2006-01-11 | 徐州正菱涂装有限公司 | Reforming method of old express way guard plate |
| CN1730164A (en) * | 2005-09-06 | 2006-02-08 | 贵州科盛彩色喷涂有限公司 | Outdoor metal surface double coating antiseptic chromatic spray painting method |
| CN101892766A (en) * | 2010-07-13 | 2010-11-24 | 张家港固耐特围栏***有限公司 | Surface modified fence |
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| CN102330852A (en) * | 2011-07-26 | 2012-01-25 | 广东联塑科技实业有限公司 | Piping material with zinc plated at outer part and plastic coated at inner part as well as production process of same |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105624766A (en) * | 2015-12-21 | 2016-06-01 | 中磁科技股份有限公司 | Electrophoretic coating technology of neodymium iron boron products |
| CN107262348A (en) * | 2017-06-17 | 2017-10-20 | 山西银河镀锌有限公司 | A kind of method for composite coating of galvanizing flange |
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| CN103540990B (en) | 2017-03-29 |
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