CN1579644A - Powder coating method - Google Patents
Powder coating method Download PDFInfo
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- CN1579644A CN1579644A CN 03154342 CN03154342A CN1579644A CN 1579644 A CN1579644 A CN 1579644A CN 03154342 CN03154342 CN 03154342 CN 03154342 A CN03154342 A CN 03154342A CN 1579644 A CN1579644 A CN 1579644A
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Abstract
The invention discloses a powder-coating method and has the following steps: provide a backing material of mantle, definite a preconcerted pattern on the surface of the backing material, make the charge distribution on the surface with the preconcerted pattern different from that on the surface without the preconcerted pattern and finally carry out the corona spray coating to make the powder with charges sprayed onto the surface of the backing material.
Description
Technical field
The present invention relates to a kind of powder coating method, relate in particular to a kind of powder coating method that utilizes the electric field influence distribution of charges to form predetermined pattern.
Background technology
Current a lot of daily living article all needs through surface treatment, for example utilizes technology such as spraying technology or powder coated to reach effect attractive in appearance and the protection product.Because traditional spraying technology must use solvent to come dissolution of coatings, therefore need cost wholesale solvent funds, and need to make subsequent treatment to the solvent contamination problem, to meet environmental protection and ecological requirement, and powder coated on technology because need not use solvent, so can reduce production costs, so used in a large number by industry.
Please refer to Fig. 1, Fig. 1 is the existing schematic diagram that utilizes the powder coating method of corona spraying.Dull and stereotyped 10 is the ground connection covering substrates of desiring to carry out powder coated.When carrying out the corona spraying, the nozzle 14 of spray gun 12 can apply a voltage, so that have electric charge via the powder 16 of nozzle 14 ejections, and along with airflow direction (direction of arrow among the figure) that nozzle 14 sprayed and flow, be adsorbed in then on the surface of flat board 10, utilize a photocuring or heat curing process at last again, powder 16 is bonded on dull and stereotyped 10 surfaces, form a planar film.
Traditionally, powder coated can only be carried out whole powder coated to smooth product surface or the covering substrates that has had relief pattern and be handled, and can't be directly produce variation at product surface as embossing pattern with powder coated, also can't form specific pattern, so the standard, fixing comparatively of the product appearance after powder coated is handled at product surface.Therefore, the alternative of existing powder coated all is to utilize the mould that is carved with pattern that product surface is covered earlier, stay hole, utilize the corona spraying process subsequently again, so that powder is adsorbed on the product surface that exposes by in the mould hole the product surface spray coating powder with pattern form.Yet the harm of above-mentioned alternative is that at different figures and product size, the specific mould of all necessary making could cooperate the pattern that powder coated is produced to be needed.In addition, the produced coating of existing powder coated all has certain thickness, and in order to satisfy the size requirements of product, when design, also must consider tolerance variation, could do suitable processing respectively to the products of day by day popularizing such as information, computer and consumer electronics one by one with existing powder coated.
From the above, industry still must be done further research and development and improvement to powder coated at present, could break through the restriction that existing powder coated product is stiff and lack variation.
Summary of the invention
Therefore the technical problem to be solved in the present invention provides a kind of powder coating method that forms specific pattern, to solve the problems referred to above that exist in the existing powder coated.
In order to address the above problem, powder coating method provided by the invention may further comprise the steps: a covering substrates is provided, defines a predetermined pattern in this covering substrates surface; Make definition have the distribution of charges on the covering substrates surface of this predetermined pattern to be different from the undefined distribution of charges that the covering substrates surface of this predetermined pattern is arranged; And carry out corona spraying step, be sprayed at this covering substrates surface so that have the powder of electric charge.
The powder coating method according to the present invention, also disclose a kind of distribution of charges that defines the covering substrates surface that predetermined pattern is arranged that makes and be different from the undefined distribution of charges method that the covering substrates surface of this predetermined pattern is arranged, it utilizes a chemical method to finish, this method comprises the following steps: that the predetermined pattern place is coated with a chemical coating on the covering substrates surface, and this covering substrates applied a voltage, be different from the undefined distribution of charges that the covering substrates surface of this predetermined pattern is arranged so that be coated with the distribution of charges on the covering substrates surface of this chemical coating.
According to powder coating method of the present invention, other has disclosed a kind of distribution of charges that defines the covering substrates surface that this predetermined pattern is arranged that makes and has been different from the undefined method that the covering substrates surface of this predetermined pattern is arranged, it utilizes a physical method to finish, this method comprises the following steps: to provide an impressed field to above-mentioned covering substrates, in order to charge characteristic or the charge movement path that influences this covering substrates surface, and this covering substrates applied a voltage, so that the electric charge on this covering substrates surface is different distribution of charges with above-mentioned impressed field.
Because powder coating method of the present invention is to coat special chemical coating on the covering substrates surface or provide an impressed field to covering substrates, so that when having the powder of electric charge and being sprayed on the covering substrates, can be automatically bestow the adding condition of covering substrates and form a predetermined pattern or the different powder distribution of thickness along with above-mentioned, can only do whole surface-treated restriction to object frigidly so can effectively break through in the existing powder coated, and save the time and the cost of manufacture process significantly.
Description of drawings
Fig. 1 is the existing schematic diagram that utilizes the powder coating method of corona spraying;
Fig. 2 to Fig. 3 is the schematic diagram of first embodiment of powder coating method of the present invention;
Fig. 4 is the schematic diagram of second embodiment of powder coating method of the present invention;
Fig. 5 is the schematic diagram of the 4th embodiment of powder coating method of the present invention.
The drawing reference numeral explanation
10 dull and stereotyped 12 spray guns
14 nozzles, 16 powder
30 covering substrates, 32 predetermined patterns
The 36 charging neutrality agent of 34 spray guns
38 spray guns, 40 powder
50 covering substrates, 52 powder
54 magnetic lines of force, 56 spray guns
60 covering substrates, 62 powder
64 power lines, 66 spray guns
The specific embodiment
See also Fig. 2 to Fig. 3, Fig. 2 to Fig. 3 is the schematic diagram of first embodiment of powder coating method of the present invention.At first, provide needs to carry out the covering substrates 30 of powder coating process, covering substrates 30 can be metal materials such as plastic material or aluminium alloy, magnesium alloy, and according to the material or the manufacture process needs of covering substrates 30, covering substrates 30 surfaces can be coated with the last layer conductive paint in addition as priming paint.Define a predetermined pattern 32 on covering substrates 30 surfaces then, and with blending the charging neutrality agent 36 of buffer be applied to the position that covering substrates 30 surfaces have predetermined pattern 32.Wherein, coating charging neutrality agent 36 to the mode on predetermined pattern 32 surfaces has a variety of, one skilled in the art can adopt any way that predetermined pattern 32 places on the covering substrates 30 are evenly coated in charging neutrality agent 36, for example, utilize screen painting or utilize the very little spray gun of a nozzle opening 34 that charging neutrality agent 36 is sprayed into covering substrates 30 surfaces, as shown in Figure 2.
Then as shown in Figure 3, covering substrates 30 is applied a voltage V
D, make covering substrates 30 surfaces be coated with charging neutrality agent 36 parts and do not have electric charge or faint distribution of charges is only arranged that the surface that is not coated with charging neutrality agent 36 on the covering substrates 30 then has a large amount of electric charges.Carry out corona spraying step then, use spray gun 38, the powder 40 that will have opposite charges is sprayed into covering substrates 30 surfaces, at this moment, powder 40 can be adsorbed on covering substrates 30 surfaces and not be coated with charging neutrality agent 36 parts, and the electrically charged powder 40 of pettiness is not then adsorbed or adsorb in the position that is coated with charging neutrality agent 36 on covering substrates 30 surfaces fully.Carry out a powder curing step at last again, powder 40 is fixed on the covering substrates 30.Wherein, this powder curing step can be to use photocuring step or thermal cure step such as infrared ray, ultraviolet ray.
In second embodiment of the present invention, utilize a physical method to make charged powder 52 on covering substrates 50, form a predetermined pattern.Please refer to Fig. 4, Fig. 4 is the schematic diagram of second embodiment of powder coating method of the present invention.At first, desiring to provide an impressed field (not shown) on the covering substrates 50 of dusty spray 52, for example, the device that can produce the magnetic line of force 54 be erected at covering substrates 50 around, so that covering substrates 50 surfaces produce a field of magnetic forece, and provide a voltage V to covering substrates 50
D, make the electric charge on covering substrates 50 surfaces be different distributions according to impressed field.Then the powder 52 that will have an electric charge with spray gun 56 again is sprayed on the covering substrates 50, therefore the powder 52 that has electrostatic charge can be along with the distribution of the magnetic line of force, be adsorbed on covering substrates 50 surfaces with different thickness or shape, carry out a powder curing step at last again, can obtain the covering substrates 50 that the surface has predetermined pattern.In second embodiment of the present invention, the impressed field that covering substrates 50 is provided comprises electric field, magnetic field, the field of force and wind field, also can be in conjunction with above-mentioned different impressed field, provide a complex environment condition more to covering substrates 50, make powder 52 form various predetermined pattern on covering substrates 50 surfaces.
It should be noted that the present invention also can utilize above-mentioned chemistry and physical method simultaneously, finishes the powder coated step on covering substrates surface.In other words, the 3rd embodiment of the present invention is to have the chemical coating that the predetermined pattern place coats can influence distribution of charges on the covering substrates surface earlier, for example charging neutrality agent, then provide a voltage to this covering substrates, make the covering substrates surface that is coated with above-mentioned chemical coating have different distribution of charges, and then provide an impressed field to covering substrates, electric field for example, magnetic field, the field of force or wind field, with charge characteristic or the charge movement path that influences original covering substrates surface, at last, the powder that will have electrostatic charge is sprayed at the covering substrates surface, and carries out a powder curing step, just can obtain a covering substrates with specific pattern.
Please refer to Fig. 5, Fig. 5 is the schematic diagram of the 4th embodiment of powder coating method of the present invention.In the present embodiment, utilization can influence the impressed field of powder motion path or distribution, forms a predetermined pattern when making charged powder 62 be sprayed on the covering substrates 60 naturally.As shown in Figure 5, on the covering substrates 60 of desiring dusty spray 62, provide an impressed field (not shown) earlier, for example, the device that can produce power line 64 be erected at covering substrates 60 around, so that covering substrates 60 surfaces produce an electric field, then the powder 62 that will have an electric charge with spray gun 66 again is sprayed on the covering substrates 60, makes the distribution along with power line 64 of the powder 62 that has electrostatic charge, forms specific shapes in covering substrates 60 surfaces.Carry out a powder curing step at last again, can obtain the covering substrates 60 that the surface has predetermined pattern.In the present embodiment, the impressed field that covering substrates 60 is provided comprises electric field, magnetic field, the field of force and wind field, also can provide more complex environment condition to covering substrates 60, make powder 62 form various predetermined pattern on covering substrates 60 surfaces in conjunction with different impressed fields.
Compared with prior art, the present invention is to covering substrates coating chemical charge nertralizer or by applying controllable impressed field, influence the distribution and the running path of electrically charged powder, so that powder is when being adsorbed to the covering substrates surface, just can form predetermined pattern, and do not need to use in addition other mould or processing mode, even can make powder have different thickness, form as variations such as embossments, can improve the restriction of existing powder coated significantly, produce to have and enrich variational product.
Below only preferred implementation of the present invention is described, all equivalents and modifications of making in claims of the present invention institute restricted portion all should fall into the scope of protection of present invention.
Claims (20)
1. powder coating method, this method comprises the following steps:
One covering substrates is provided;
Define a predetermined pattern in this covering substrates surface, and make definition have the distribution of charges on the covering substrates surface of this predetermined pattern to be different from the undefined distribution of charges that the covering substrates surface of this predetermined pattern is arranged; And
Carry out corona spraying step, be sprayed at above-mentioned covering substrates surface so that have the powder of electric charge.
2. the method for claim 1 wherein makes the different step of distribution of charges on above-mentioned covering substrates surface finish in conjunction with a chemical method.
3. method as claimed in claim 2 wherein makes the different step of distribution of charges on above-mentioned covering substrates surface comprise following substep in addition:
Be coated with a chemical coating covering substrates surface of above-mentioned predetermined pattern is arranged in definition; And
Above-mentioned covering substrates is applied a voltage, be different from the uncoated distribution of charges that the covering substrates surface of this chemical coating is arranged so that be coated with the distribution of charges on the covering substrates surface of this chemical coating.
4. method as claimed in claim 3, wherein when above-mentioned voltage puts on this covering substrates, the covering substrates surface that is coated with above-mentioned chemical coating presents does not have the electric charge or a distribution of charges of faint electric charge.
5. method as claimed in claim 4, wherein above-mentioned chemical coating are a charging neutrality agent.
6. method as claimed in claim 4, wherein above-mentioned chemical coating comprises a charging neutrality agent and a buffer.
7. method as claimed in claim 3 comprises that also one applies the step of impressed field, in order to charge characteristic or the charge movement path that influences above-mentioned covering substrates surface.
8. method as claimed in claim 7, wherein above-mentioned impressed field comprise the combination of electric field, magnetic field, the field of force, wind field or above-mentioned field.
9. the method for claim 1 wherein makes the different step of distribution of charges on above-mentioned covering substrates surface utilize a physical method to finish.
10. method as claimed in claim 9 wherein makes the different step of distribution of charges on above-mentioned covering substrates surface comprise following substep in addition:
Provide an impressed field to above-mentioned covering substrates, in order to charge characteristic or the charge movement path that influences above-mentioned covering substrates surface; And
Above-mentioned covering substrates is applied a voltage, so that the electric charge on above-mentioned covering substrates surface is different distribution of charges with this impressed field.
11. method as claimed in claim 10, wherein above-mentioned impressed field comprise the combination of electric field, magnetic field, the field of force, wind field or above-mentioned field.
12. the method for claim 1 also comprises a powder curing step, is sprayed at the powder on above-mentioned covering substrates surface in order to curing.
13. method as claimed in claim 12, wherein above-mentioned powder curing step is a thermal cure step.
14. method as claimed in claim 12, wherein above-mentioned powder curing step are a photocuring step.
15. a powder coating method, this method comprises the following steps:
One covering substrates is provided;
Provide an impressed field to this covering substrates; And
Carry out powder spraying step, so that powder is sprayed at this covering substrates surface;
Wherein above-mentioned impressed field is used for guiding the motion path and the distribution of the powder that is sprayed at this covering substrates surface.
16. method as claimed in claim 15, wherein above-mentioned powder spraying step is a corona spraying step, be sprayed at above-mentioned covering substrates surface so that have the powder of electric charge, and above-mentioned impressed field is used for influencing the charge characteristic or the charge movement path of the electrically charged powder on above-mentioned covering substrates surface.
17. method as claimed in claim 15, wherein above-mentioned impressed field comprise the combination of electric field, magnetic field, the field of force, wind field or above-mentioned field.
18. method as claimed in claim 15 also comprises a powder curing step, is sprayed at the powder on this covering substrates surface in order to curing.
19. method as claimed in claim 18, wherein above-mentioned powder curing step is a thermal cure step.
20. method as claimed in claim 18, wherein above-mentioned powder curing step are a photocuring step.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101204276A CN100462151C (en) | 2003-08-15 | 2003-08-15 | Powder coating method |
| CN 03154342 CN1277623C (en) | 2003-08-15 | 2003-08-15 | Powder coating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03154342 CN1277623C (en) | 2003-08-15 | 2003-08-15 | Powder coating method |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101204276A Division CN100462151C (en) | 2003-08-15 | 2003-08-15 | Powder coating method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1579644A true CN1579644A (en) | 2005-02-16 |
| CN1277623C CN1277623C (en) | 2006-10-04 |
Family
ID=34580196
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03154342 Expired - Fee Related CN1277623C (en) | 2003-08-15 | 2003-08-15 | Powder coating method |
| CNB2005101204276A Expired - Lifetime CN100462151C (en) | 2003-08-15 | 2003-08-15 | Powder coating method |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101204276A Expired - Lifetime CN100462151C (en) | 2003-08-15 | 2003-08-15 | Powder coating method |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN1277623C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104775118A (en) * | 2015-05-04 | 2015-07-15 | 北京理工大学 | Laser cladding powder presetting method |
| CN107661827A (en) * | 2017-12-01 | 2018-02-06 | 邬惠林 | The spraying frock and spraying method of the background color of two sides racket |
| CN111036845A (en) * | 2020-01-06 | 2020-04-21 | 江苏中超航宇精铸科技有限公司 | Liquid-free formwork manufacturing method and system for investment precision casting |
| CN111139989A (en) * | 2019-12-06 | 2020-05-12 | 宁波红杉高新板业有限公司 | Processing method of 4D three-dimensional porcelain aluminum plate |
| CN113351454A (en) * | 2021-05-26 | 2021-09-07 | 湖北实美科技有限公司 | Aluminum alloy profile surface texture processing technology |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0889890A (en) * | 1994-09-27 | 1996-04-09 | Ig Tech Res Inc | Method for coating decorative surface |
| JPH08103720A (en) * | 1994-10-06 | 1996-04-23 | Ig Tech Res Inc | Coating of uneven pattern face |
-
2003
- 2003-08-15 CN CN 03154342 patent/CN1277623C/en not_active Expired - Fee Related
- 2003-08-15 CN CNB2005101204276A patent/CN100462151C/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104775118A (en) * | 2015-05-04 | 2015-07-15 | 北京理工大学 | Laser cladding powder presetting method |
| CN107661827A (en) * | 2017-12-01 | 2018-02-06 | 邬惠林 | The spraying frock and spraying method of the background color of two sides racket |
| CN111139989A (en) * | 2019-12-06 | 2020-05-12 | 宁波红杉高新板业有限公司 | Processing method of 4D three-dimensional porcelain aluminum plate |
| CN111036845A (en) * | 2020-01-06 | 2020-04-21 | 江苏中超航宇精铸科技有限公司 | Liquid-free formwork manufacturing method and system for investment precision casting |
| CN111036845B (en) * | 2020-01-06 | 2023-09-29 | 江苏中超航宇精铸科技有限公司 | Method and system for manufacturing liquid-free shuttering for investment precision casting |
| CN113351454A (en) * | 2021-05-26 | 2021-09-07 | 湖北实美科技有限公司 | Aluminum alloy profile surface texture processing technology |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1836793A (en) | 2006-09-27 |
| CN100462151C (en) | 2009-02-18 |
| CN1277623C (en) | 2006-10-04 |
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Effective date of registration: 20060925 Pledge (preservation): Preservation |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061004 Termination date: 20110815 |