CN105396766A - Electrostatic powder spraying curing process - Google Patents
Electrostatic powder spraying curing process Download PDFInfo
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- CN105396766A CN105396766A CN201510963272.6A CN201510963272A CN105396766A CN 105396766 A CN105396766 A CN 105396766A CN 201510963272 A CN201510963272 A CN 201510963272A CN 105396766 A CN105396766 A CN 105396766A
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- curing
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- curing room
- minutes
- relative humidity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/04—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
- B05D3/0466—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases the gas being a non-reacting gas
- B05D3/0473—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases the gas being a non-reacting gas for heating, e.g. vapour heating
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- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses an electrostatic powder spraying curing process. The electrostatic powder spraying curing process comprises the following technological steps: (1), powder which needs to be sprayed and meets technological requirement is uniformly sprayed on the surface of a product through a spraying gun by adopting an electrostatic spraying mode; (2), the workpiece is conveyed to a curing room after spraying, so that the powder on the surface of the workpiece is melted, levelled and cured; an upper-supplying and lower-returning air supplying mode is adopted as the air supplying mode of the curing room; heat energy is sent from the lower part of the curing room, and then rises slowly from the lower part, so that the temperature in a furnace is uniform due to a scientific hot air flowing principle; according to the process, the air supplying mode is gentile, so that dust falling in the curing furnace cannot be disturbed, and the heat preservation time is prolonged more favorably; the air supplying mode is better than an ordinary air supplying mode either in technological performance or in economic performance; and a special stagewise curing mode is adopted, so that the product is stable in integral quality and is pore-free, and the qualification rate reaches 100%.
Description
Technical field
The present invention relates to coating process technical field, be specifically related to a kind of electrostatic powder spraying curing process.
Background technology
Electrostatic spraying utilizes high-pressure electrostatic corona field principle.Metal guide flow cup on lance head connects high pressure negative electricity, is formed positive pole by painting workpiece grounding.Stronger electrostatic field is formed between spray gun and workpiece.When powdery paints is delivered to the diversion cup of spray gun from powder barrel through duff pipe by carrier gas (compressed air), intensive electric charge is produced around it, negative electrical charge on powder belt, under electrostatic force and compressed-air actuated effect, powder is adsorbed on workpiece uniformly, through heating, powder melts solidification (or plasticizing) uniformly, continuous, smooth, smooth film.
In common curing oven, air supply mode is upper air-supply, for making heat be distributed in stove, must carry with high-power blower, and cannot ensure that in-furnace temperature is even, temperature retention time is short, and the temperature difference is large, more need combustor to work long hours maintenance heat delivery, this air supply mode energy consumption is large, and drawback is many.
Summary of the invention
Technical problem to be solved by this invention is to provide one to be easy to practical operation, the electrostatic powder spraying curing process that solidification quality is high.
Technical problem to be solved by this invention realizes by the following technical solutions:
A kind of electrostatic powder spraying curing process, comprises following processing step:
(1) mode of electrostatic spraying is adopted to be sprayed needing powder that spray, that meet technological requirement equably on the surface of the product by spray gun;
(2) after spray coated by workpiece transfer in curing room, make that the powder of surface of the work dissolves, levelling and solidification;
The air supply mode that the air supply mode of curing room is served back under adopting, heat energy is entered by below in solidifying, is more slowly risen by below, even with the hot gas flow principle of this science guarantee in-furnace temperature;
Wherein solidify 6 stages of employing:
First stage: in control curing room, solidification temperature is at 195 DEG C, and relative humidity is 99%, and curing time control was at 10 minutes;
Second stage: in control curing room, solidification temperature is at 200 DEG C, and relative humidity is 99%, and curing time control was at 12 minutes;
Phase III: in control curing room, solidification temperature is at 205 DEG C, and relative humidity is 80%, and curing time control was at 10 minutes;
Fourth stage: in control curing room, solidification temperature is at 210 DEG C, and relative humidity is 60%, and curing time control was at 15 minutes;
Five-stage: in control curing room, solidification temperature is at 215 DEG C, and relative humidity is 40%, and curing time control was at 5 minutes;
6th stage: in control curing room, solidification temperature is at 220 DEG C, and relative humidity is 0.5%, and curing time control was at 15 minutes.
The invention has the beneficial effects as follows: air supply mode of the present invention is soft, the dust dropped in curing oven can not be stirred, be more conducive to extend temperature retention time, no matter from processing performance or economic performance, all good than common air supply mode; Adopt special stage curing mode, Total Product steady quality, pore-free, qualification rate reaches 100%.
Detailed description of the invention
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with specific embodiment, setting forth the present invention further.
A kind of electrostatic powder spraying curing process, comprises following processing step:
(1) mode of electrostatic spraying is adopted to be sprayed needing powder that spray, that meet technological requirement equably on the surface of the product by spray gun;
(2) after spray coated by workpiece transfer in curing room, make that the powder of surface of the work dissolves, levelling and solidification;
The air supply mode that the air supply mode of curing room is served back under adopting, heat energy is entered by below in solidifying, is more slowly risen by below, even with the hot gas flow principle of this science guarantee in-furnace temperature;
Wherein solidify 6 stages of employing:
First stage: in control curing room, solidification temperature is at 195 DEG C, and relative humidity is 99%, and curing time control was at 10 minutes;
Second stage: in control curing room, solidification temperature is at 200 DEG C, and relative humidity is 99%, and curing time control was at 12 minutes;
Phase III: in control curing room, solidification temperature is at 205 DEG C, and relative humidity is 80%, and curing time control was at 10 minutes;
Fourth stage: in control curing room, solidification temperature is at 210 DEG C, and relative humidity is 60%, and curing time control was at 15 minutes;
Five-stage: in control curing room, solidification temperature is at 215 DEG C, and relative humidity is 40%, and curing time control was at 5 minutes;
6th stage: in control curing room, solidification temperature is at 220 DEG C, and relative humidity is 0.5%, and curing time control was at 15 minutes.
More than show and describe general principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (1)
1. an electrostatic powder spraying curing process, is characterized in that, comprises following processing step:
(1) mode of electrostatic spraying is adopted to be sprayed needing powder that spray, that meet technological requirement equably on the surface of the product by spray gun;
(2) after spray coated by workpiece transfer in curing room, make that the powder of surface of the work dissolves, levelling and solidification; The air supply mode that the air supply mode of curing room is served back under adopting, heat energy enters below in solidifying, is more slowly risen by below;
Wherein solidify 6 stages of employing:
First stage: in control curing room, solidification temperature is at 195 DEG C, and relative humidity is 99%, and curing time control was at 10 minutes;
Second stage: in control curing room, solidification temperature is at 200 DEG C, and relative humidity is 99%, and curing time control was at 12 minutes;
Phase III: in control curing room, solidification temperature is at 205 DEG C, and relative humidity is 80%, and curing time control was at 10 minutes;
Fourth stage: in control curing room, solidification temperature is at 210 DEG C, and relative humidity is 60%, and curing time control was at 15 minutes;
Five-stage: in control curing room, solidification temperature is at 215 DEG C, and relative humidity is 40%, and curing time control was at 5 minutes;
6th stage: in control curing room, solidification temperature is at 220 DEG C, and relative humidity is 0.5%, and curing time control was at 15 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510963272.6A CN105396766A (en) | 2015-12-17 | 2015-12-17 | Electrostatic powder spraying curing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510963272.6A CN105396766A (en) | 2015-12-17 | 2015-12-17 | Electrostatic powder spraying curing process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105396766A true CN105396766A (en) | 2016-03-16 |
Family
ID=55462709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510963272.6A Pending CN105396766A (en) | 2015-12-17 | 2015-12-17 | Electrostatic powder spraying curing process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105396766A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106694329A (en) * | 2017-01-05 | 2017-05-24 | 滁州市友邦涂装有限公司 | Metal powder spraying technological process |
| CN106733519A (en) * | 2017-01-05 | 2017-05-31 | 滁州市友邦涂装有限公司 | A kind of phosphating metal powder coating process flow |
| CN107670927A (en) * | 2016-08-01 | 2018-02-09 | 苏州考斯丹五金制品有限公司 | MDF plate surface electrostatic powder spraying curing process |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104511383A (en) * | 2015-01-14 | 2015-04-15 | 福建省雅康工贸有限公司 | Electrostatic spraying device for bamboo products and spraying process of electrostatic spraying device |
| CN104785426A (en) * | 2015-02-13 | 2015-07-22 | 芜湖协诚金属制品有限公司 | Steel volute powder spraying process method |
-
2015
- 2015-12-17 CN CN201510963272.6A patent/CN105396766A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104511383A (en) * | 2015-01-14 | 2015-04-15 | 福建省雅康工贸有限公司 | Electrostatic spraying device for bamboo products and spraying process of electrostatic spraying device |
| CN104785426A (en) * | 2015-02-13 | 2015-07-22 | 芜湖协诚金属制品有限公司 | Steel volute powder spraying process method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107670927A (en) * | 2016-08-01 | 2018-02-09 | 苏州考斯丹五金制品有限公司 | MDF plate surface electrostatic powder spraying curing process |
| CN106694329A (en) * | 2017-01-05 | 2017-05-24 | 滁州市友邦涂装有限公司 | Metal powder spraying technological process |
| CN106733519A (en) * | 2017-01-05 | 2017-05-31 | 滁州市友邦涂装有限公司 | A kind of phosphating metal powder coating process flow |
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Application publication date: 20160316 |