CN105772357A - Electrostatic spraying process - Google Patents
Electrostatic spraying process Download PDFInfo
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- CN105772357A CN105772357A CN201410761908.4A CN201410761908A CN105772357A CN 105772357 A CN105772357 A CN 105772357A CN 201410761908 A CN201410761908 A CN 201410761908A CN 105772357 A CN105772357 A CN 105772357A
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- spray
- powder
- spraying
- dusting
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Abstract
The invention discloses an electrostatic spraying process. The electrostatic spraying process is characterized in that the electrostatic spraying process comprises the process steps of workpiece feeding, degreasing, washing, derusting, washing, phosphorization, washing, passivation, electrostatic powder spraying, solidification, cooling and workpiece discharging. The electrostatic spraying process is simple in method and good in spraying effect, and a coating is even after spraying.
Description
Technical field
The present invention relates to a kind of electrostatic painting process.
Background technology
Current electrostatic painting process is more complicated, also without unified specification, it does not have unified standard, the coating quality causing production is uneven, a lot of operations that repeat also make under production efficiency, increase the work burden of workman, make the competitiveness of product in market not high simultaneously.For some operators just entered a profession, it does not have a clear and definite method technique, cause, when operation, mistakes and omissions often occur, in some instances it may even be possible to cause serious consequence.Summary of the invention
Because the drawbacks described above of prior art, the technical problem to be solved is to provide a kind of electrostatic painting process, and this spraying coating process method is simple, and spraying effect is good, coating uniform after spraying.
For achieving the above object, the invention provides a kind of electrostatic painting process, it is characterised in that comprise the steps, 1) technological process: upper part → defat → clean → derust → clean → phosphatization → cleaning → passivation → electrostatic powder spraying → solidification → cooling → lower part；
2) technological requirement: the resistivity of (1) powder
The resistivity of powder is ideal in 1010～1016 ohm/cm, and the too low powder that is easily generated of resistivity is in dispersion, and resistivity is too high can affect coating layer thickness.
(2) amount of dusting
In the spraying incipient stage, thickness is had a certain impact by the size of the amount of dusting, and generally the amount of dusting is little, and deposition is high.The amount of dusting general control is within the scope of 50 Grams Per Minutes to 1000 Grams Per Minutes.
(3) speed of powder and air mixture and gradient
Velocity gradient is the speed ratio with spray distance of the powder air mix at lance outlet place, in certain spray time, along with the increase thickness of spraying gradient will reduce.
(4) spray distance
Spray distance is the major parameter refusing masking thickness. how general control, from workpiece 10 ~ 25 centimetres, is determined by gun type；
(5) spray time
Several the parameters such as spray time and spray voltage, spray distance, quantity for spray be influence each other when spraying between increase and spray distance very big time, the impact of thickness ultimate value is reduced by spray voltage.Along with the increase of the time of dusting, the impact of the rate of increase of thickness is substantially reduced by the amount of dusting.
(6) moisture divided powder application
Moisture divided powder coating is that it has the advantage of water paint and powdery paints concurrently with aqueous medium by dispersion stable for powdery paints, can use all conventional meanses including leaching, brush, spray, electrostatic spraying in technique.
The invention has the beneficial effects as follows: the spraying coating process method of the present invention is simple, and spraying effect is good, coating uniform after spraying.
Detailed description of the invention
Technical scheme disclosed by the invention is a kind of electrostatic painting process, it is characterised in that comprise the steps, 1) technological process: upper part → defat → clean → derust → clean → phosphatization → cleaning → passivation → electrostatic powder spraying → solidification → cooling → lower part；
2) technological requirement: the resistivity of (1) powder
The resistivity of powder is ideal in 1010～1016 ohm/cm, and the too low powder that is easily generated of resistivity is in dispersion, and resistivity is too high can affect coating layer thickness；
(2) amount of dusting
In the spraying incipient stage, thickness is had a certain impact by the size of the amount of dusting, and generally the amount of dusting is little, and deposition is high；The amount of dusting general control is within the scope of 50 Grams Per Minutes to 1000 Grams Per Minutes；
(3) speed of powder and air mixture and gradient
Velocity gradient is the speed ratio with spray distance of the powder air mix at lance outlet place, in certain spray time, along with the increase thickness of spraying gradient will reduce；
(4) spray distance
Spray distance is the major parameter refusing masking thickness. how general control, from workpiece 10 ~ 25 centimetres, is determined by gun type.
(5) spray time
Several the parameters such as spray time and spray voltage, spray distance, quantity for spray be influence each other when spraying between increase and spray distance very big time, the impact of thickness ultimate value is reduced by spray voltage；Along with the increase of the time of dusting, the impact of the rate of increase of thickness is substantially reduced by the amount of dusting；
(6) moisture divided powder application
Moisture divided powder coating is that it has the advantage of water paint and powdery paints concurrently with aqueous medium by dispersion stable for powdery paints, can use all conventional meanses including leaching, brush, spray, electrostatic spraying in technique.
The spraying coating process method of the present invention is simple, and spraying effect is good, coating uniform after spraying.
The preferred embodiment of the present invention described in detail above.Should be appreciated that those of ordinary skill in the art just can make many modifications and variations according to the design of the present invention without creative work.Therefore, all technical staff in the art, all should in the protection domain being defined in the patent claims under this invention's idea on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (1)
1. an electrostatic painting process, it is characterised in that comprise the steps, 1) technological process: upper part → defat → clean → derust → clean → phosphatization → cleaning → passivation → electrostatic powder spraying → solidification → cooling → lower part；
2) technological requirement: the resistivity of (1) powder
The resistivity of powder is ideal in 1010～1016 ohm/cm, and the too low powder that is easily generated of resistivity is in dispersion, and resistivity is too high can affect coating layer thickness；
(2) amount of dusting
In the spraying incipient stage, thickness is had a certain impact by the size of the amount of dusting, and generally the amount of dusting is little, and deposition is high；The amount of dusting general control is within the scope of 50 Grams Per Minutes to 1000 Grams Per Minutes；
(3) speed of powder and air mixture and gradient
Velocity gradient is the speed ratio with spray distance of the powder air mix at lance outlet place, in certain spray time, along with the increase thickness of spraying gradient will reduce；
(4) spray distance
Spray distance is the major parameter refusing masking thickness. how general control, from workpiece 10 ~ 25 centimetres, is determined by gun type.
(5) spray time
Several the parameters such as spray time and spray voltage, spray distance, quantity for spray be influence each other when spraying between increase and spray distance very big time, the impact of thickness ultimate value is reduced by spray voltage；Along with the increase of the time of dusting, the impact of the rate of increase of thickness is substantially reduced by the amount of dusting；
(6) moisture divided powder application
Moisture divided powder coating is that it has the advantage of water paint and powdery paints concurrently with aqueous medium by dispersion stable for powdery paints, can use all conventional meanses including leaching, brush, spray, electrostatic spraying in technique.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410761908.4A CN105772357A (en) | 2014-12-13 | 2014-12-13 | Electrostatic spraying process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410761908.4A CN105772357A (en) | 2014-12-13 | 2014-12-13 | Electrostatic spraying process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105772357A true CN105772357A (en) | 2016-07-20 |
Family
ID=56373724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410761908.4A Pending CN105772357A (en) | 2014-12-13 | 2014-12-13 | Electrostatic spraying process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105772357A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106394045A (en) * | 2016-08-29 | 2017-02-15 | 北京洁莹不锈钢厨房设备有限公司 | Method for carrying out color printing on stainless steel plate, color-printed stainless steel plate and application |
| CN113145366A (en) * | 2021-03-23 | 2021-07-23 | 泰州市宝迪涂装机械有限公司 | Electrostatic spraying process and device for automobile shell |
-
2014
- 2014-12-13 CN CN201410761908.4A patent/CN105772357A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106394045A (en) * | 2016-08-29 | 2017-02-15 | 北京洁莹不锈钢厨房设备有限公司 | Method for carrying out color printing on stainless steel plate, color-printed stainless steel plate and application |
| CN113145366A (en) * | 2021-03-23 | 2021-07-23 | 泰州市宝迪涂装机械有限公司 | Electrostatic spraying process and device for automobile shell |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160720 |