CN105772369A - Pretreatment method of electric vehicle paint spraying - Google Patents
Pretreatment method of electric vehicle paint spraying Download PDFInfo
- Publication number
- CN105772369A CN105772369A CN201610345563.3A CN201610345563A CN105772369A CN 105772369 A CN105772369 A CN 105772369A CN 201610345563 A CN201610345563 A CN 201610345563A CN 105772369 A CN105772369 A CN 105772369A
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- Prior art keywords
- shell
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- clear water
- solution
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Classifications
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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
- B05D3/10—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 other chemical means
-
- 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
- B05D3/002—Pretreatement
-
- 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
- B05D2350/00—Pretreatment of the substrate
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a pretreatment method of electric vehicle paint spraying. The pretreatment method comprises the following specific steps of: (1) surface cleaning, to be specific, washing a shell needing to be subjected to paint spraying by using clear water, then soaking the shell in a defatted powder water solution, and washing by using the clear water; (2) rust removal by neutralization, to be specific, putting the shell cleaned in the step (1) in a special acid solution, carrying out ultrasound treatment, washing by using clear water, and ensuring that the pH value of the surface of the shell is in a certain range; (3) phosphorization, to be specific, putting the shell treated in the step (2) in a phosphatizing agent solution, heating and soaking, heating again and slowly turning over the shell; and (4) drying and cleaning, to be specific, putting the shell treated in the step (3) in a drying machine, and taking out the shell after drying the shell, and uniformly purging the surface of the shell by using clean air after naturally cooling. The pretreatment method has the beneficial effects that a system is reasonable; the treatment method is careful and strict; parameter setting meets treatment requirements; and the treated shell can cause paint and the shell to be combined more tightly in a paint spraying process and flaws such as unevenness to be less likely to occur.
Description
Technical field
The present invention relates to electric motor car manufacturing technology field, the pre-treating method that a kind of electric motor car sprays paint.
Background technology
Electric motor car is the environmental protection vehicles utilizing electric energy to travel, and is also the development trend of future transportation tool power resources use, and along with the development of its battery technology, electric motor car is the most increasingly accepted by consumers in general, becomes a kind of main stream traffic instrument.
Electric motor car is also the same with other motor vehicles to be needed to bear outside to expose to the sun and rain, so its shell is sprayed paint quality also have higher requirement, and the height of painting quality, impact greatly is had to be the quality of its pre-treating technology, generally pre-treatment is relatively simple, think little of, and its later stage painting quality can be affected by serious.
Summary of the invention
It is an object of the invention to, for solving the problems of the prior art, disclose the pre-treating method that a kind of electric motor car sprays paint.
For achieving the above object, the invention discloses the pre-treating method that a kind of electric motor car sprays paint, it concretely comprises the following steps:
(1) surface cleaning: the shell clear water first sprayed paint by needs rinses 3-5 minute, being soaked into by shell in the aqueous solution that skimmed milk is made into, skimmed milk concentration is 12%, heated solution to 50-60 DEG C again, after persistently soaking 15-20 minute, then rinse 3-5 minute with clear water；
(2) rust cleaning is neutralized: insert in special acid solution by clean shell in step (1), and after ultrasonic 10-12 minute, clear water rinses 1-3 minute, measure case surface acid-base value, if acid-base value is in 6.7-7.3 scope, then enter next step, if acid-base value is less than 6.7, then it is neutralized in 6.7-7.3 scope with the sodium carbonate liquor of concentration 25%, after rinsing 1-3 minute with clear water the most again, enters next step；
(3) phosphatization: the shell handled well in step (2) is inserted in the bonderite solution that concentration is 18%-20%, heated solution is to after 50-70 DEG C, after soaking 3-5 minute, reheating solution is to 80-100 DEG C, the most slowly stirs shell and enters next step after 10-12 minute；
(4) drying cleaning: insert in dehydrator by the shell handled well in step (3), take out after drying 30-40 minute at temperature 140 DEG C-160 DEG C, natural cooling, after 10-12 minute, uniformly purges surface 5-10 minute with clean air.
Wherein, described skimmed milk component consists of the NaOH of mass fraction 45%, the Na2SiO3 5H2O of 27%, the Na3PO4 12H2O of 19%, the Na2CO3 of 9%.
Wherein, described special acid solution is the sulfuric acid solution of concentration 23%.
Wherein, described bonderite component consists of the ZnO of mass fraction 53%, Zn (NO3) 2 6H2O, the H3PO4 of 22% of 25%.
Advantages of the present invention and good effect be:
The inventive method system is reasonable, and processing method is careful rigorous, and parameter arranges to meet and processes requirement, and the case surface processed has the close phosphate coating of cleaning, can promote in lacquer spraying technique that paint vehicle is combined with shell more closely, be difficult to that the flaws such as out-of-flatness occur.
Detailed description of the invention
Specific embodiment one:
The pre-treating method that a kind of electric motor car sprays paint, it concretely comprises the following steps:
(1) surface cleaning: the shell clear water first sprayed paint by needs rinses 3 minutes, again shell is soaked in the aqueous solution that skimmed milk is made into, skimmed milk component consists of the NaOH of mass fraction 45%, the Na2SiO3 5H2O of 27%, the Na3PO4 12H2O of 19%, the Na2CO3 of 9%, skimmed milk concentration is 12%, heated solution to 50 DEG C, after persistently soaking 15 minutes, then rinse 3 minutes with clear water；
(2) rust cleaning is neutralized: in clean shell inserts the sulfuric acid solution of concentration 23% in step (1), and after ultrasonic 10 minutes, clear water rinses 1 minute, measure case surface acid-base value, if acid-base value is in 6.7-7.3 scope, then enter next step, if acid-base value is less than 6.7, then it is neutralized in 6.7-7.3 scope with the sodium carbonate liquor of concentration 25%, after rinsing 1 minute with clear water the most again, enters next step；
(3) phosphatization: the shell handled well in step (2) is inserted in the bonderite solution that concentration is 18%, bonderite component consists of the ZnO of mass fraction 53%, Zn (NO3) 2 6H2O, the H3PO4 of 22% of 25%, heated solution is to after 50 DEG C, after soaking 3 minutes, reheating solution is to 80 DEG C, the most slowly stirs shell and enters next step after 10 minutes；
(4) drying cleaning: insert in dehydrator by the shell handled well in step (3), take out after drying 30 minutes at temperature 140 DEG C, natural cooling, after 10 minutes, uniformly purges surface 5 minutes with clean air.
Specific embodiment two:
The pre-treating method that a kind of electric motor car sprays paint, it concretely comprises the following steps:
(1) surface cleaning: the shell clear water first sprayed paint by needs rinses 5 minutes, again shell is soaked in the aqueous solution that skimmed milk is made into, skimmed milk component consists of the NaOH of mass fraction 45%, the Na2SiO3 5H2O of 27%, the Na3PO4 12H2O of 19%, the Na2CO3 of 9%, skimmed milk concentration is 12%, heated solution to 60 DEG C, after persistently soaking 20 minutes, then rinse 5 minutes with clear water；
(2) rust cleaning is neutralized: in clean shell inserts the sulfuric acid solution of concentration 23% in step (1), and after ultrasonic 12 minutes, clear water rinses 3 minutes, measure case surface acid-base value, if acid-base value is in 6.7-7.3 scope, then enter next step, if acid-base value is less than 6.7, then it is neutralized in 6.7-7.3 scope with the sodium carbonate liquor of concentration 25%, after rinsing 3 minutes with clear water the most again, enters next step；
(3) phosphatization: the shell handled well in step (2) is inserted in the bonderite solution that concentration is 20%, bonderite component consists of the ZnO of mass fraction 53%, Zn (NO3) 2 6H2O, the H3PO4 of 22% of 25%, heated solution is to after 70 DEG C, after soaking 5 minutes, reheating solution is to 100 DEG C, the most slowly stirs shell and enters next step after 12 minutes；
(4) drying cleaning: insert in dehydrator by the shell handled well in step (3), take out after drying 40 minutes at temperature 160 DEG C, natural cooling, after 12 minutes, uniformly purges surface 10 minutes with clean air.
Specific embodiment three:
The pre-treating method that a kind of electric motor car sprays paint, it concretely comprises the following steps:
(1) surface cleaning: the shell clear water first sprayed paint by needs rinses 4 minutes, again shell is soaked in the aqueous solution that skimmed milk is made into, skimmed milk component consists of the NaOH of mass fraction 45%, the Na2SiO3 5H2O of 27%, the Na3PO4 12H2O of 19%, the Na2CO3 of 9%, skimmed milk concentration is 12%, heated solution to 55 DEG C, after persistently soaking 18 minutes, then rinse 4 minutes with clear water；
(2) rust cleaning is neutralized: in clean shell inserts the sulfuric acid solution of concentration 23% in step (1), and after ultrasonic 11 minutes, clear water rinses 2 minutes, measure case surface acid-base value, if acid-base value is in 6.7-7.3 scope, then enter next step, if acid-base value is less than 6.7, then it is neutralized in 6.7-7.3 scope with the sodium carbonate liquor of concentration 25%, after rinsing 2 minutes with clear water the most again, enters next step；
(3) phosphatization: the shell handled well in step (2) is inserted in the bonderite solution that concentration is 18%-20%, bonderite component consists of the ZnO of mass fraction 53%, Zn (NO3) 2 6H2O, the H3PO4 of 22% of 25%, heated solution is to after 60 DEG C, after soaking 4 minutes, reheating solution is to 90 DEG C, the most slowly stirs shell and enters next step after 11 minutes；
(4) drying cleaning: insert in dehydrator by the shell handled well in step (3), take out after drying 35 minutes at temperature 150 DEG C, natural cooling, after 11 minutes, uniformly purges surface 8 minutes with clean air.
The above; it is only the present invention preferably detailed description of the invention; but protection scope of the present invention is not limited thereto; any those familiar with the art is in the technical scope that the invention discloses; according to technical scheme and inventive concept equivalent or change in addition thereof, all should contain within protection scope of the present invention.
Claims (4)
1. the pre-treating method that an electric motor car sprays paint, it is characterised in that it concretely comprises the following steps:
(1) surface cleaning: the shell clear water first sprayed paint by needs rinses 3-5 minute, being soaked into by shell in the aqueous solution that skimmed milk is made into, skimmed milk concentration is 12%, heated solution to 50-60 DEG C again, after persistently soaking 15-20 minute, then rinse 3-5 minute with clear water；
(2) rust cleaning is neutralized: insert in special acid solution by clean shell in step (1), and after ultrasonic 10-12 minute, clear water rinses 1-3 minute, measure case surface acid-base value, if acid-base value is in 6.7-7.3 scope, then enter next step, if acid-base value is less than 6.7, then it is neutralized in 6.7-7.3 scope with the sodium carbonate liquor of concentration 25%, after rinsing 1-3 minute with clear water the most again, enters next step；
(3) phosphatization: the shell handled well in step (2) is inserted in the bonderite solution that concentration is 18%-20%, heated solution is to after 50-70 DEG C, after soaking 3-5 minute, reheating solution is to 80-100 DEG C, the most slowly stirs shell and enters next step after 10-12 minute；
(4) drying cleaning: insert in dehydrator by the shell handled well in step (3), take out after drying 30-40 minute at temperature 140 DEG C-160 DEG C, natural cooling, after 10-12 minute, uniformly purges surface 5-10 minute with clean air.
The pre-treating method that a kind of electric motor car the most according to claim 1 sprays paint, it is characterised in that: described skimmed milk component consists of the NaOH of mass fraction 45%, the Na2SiO3 5H2O of 27%, the Na3PO4 12H2O of 19%, the Na2CO3 of 9%.
The pre-treating method that a kind of electric motor car the most according to claim 1 sprays paint, it is characterised in that: described special acid solution is the sulfuric acid solution of concentration 23%.
The pre-treating method that a kind of electric motor car the most according to claim 1 sprays paint, it is characterised in that: described bonderite component consists of the ZnO of mass fraction 53%, Zn (NO3) 2 6H2O, the H3PO4 of 22% of 25%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610345563.3A CN105772369A (en) | 2016-05-24 | 2016-05-24 | Pretreatment method of electric vehicle paint spraying |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610345563.3A CN105772369A (en) | 2016-05-24 | 2016-05-24 | Pretreatment method of electric vehicle paint spraying |
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| CN105772369A true CN105772369A (en) | 2016-07-20 |
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| CN201610345563.3A Pending CN105772369A (en) | 2016-05-24 | 2016-05-24 | Pretreatment method of electric vehicle paint spraying |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106238381A (en) * | 2016-08-23 | 2016-12-21 | 蚌埠精科机床制造有限公司 | A kind of pre-treating method of machine tool component sanding and polishing processing |
| CN107497647A (en) * | 2017-07-19 | 2017-12-22 | 安徽登冠新能源电动车科技有限公司 | The processing method of the shell spray painting of electric car |
| CN108411313A (en) * | 2018-05-04 | 2018-08-17 | 浙江恒利五金科技有限公司 | The derusting method of utensil made of iron |
| CN109248839A (en) * | 2018-11-14 | 2019-01-22 | 徐州美世通电动车有限公司 | A kind of electric vehicle spray painting pretreatment processing technology |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102628167A (en) * | 2012-04-19 | 2012-08-08 | 常熟市异型钢管有限公司 | Uniform phosphorizing technology for surface coating of steel tube |
-
2016
- 2016-05-24 CN CN201610345563.3A patent/CN105772369A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102628167A (en) * | 2012-04-19 | 2012-08-08 | 常熟市异型钢管有限公司 | Uniform phosphorizing technology for surface coating of steel tube |
Non-Patent Citations (1)
| Title |
|---|
| 曹京宜等: "《涂装表面预处理技术与应用》", 31 October 2004, 化学工业出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106238381A (en) * | 2016-08-23 | 2016-12-21 | 蚌埠精科机床制造有限公司 | A kind of pre-treating method of machine tool component sanding and polishing processing |
| CN107497647A (en) * | 2017-07-19 | 2017-12-22 | 安徽登冠新能源电动车科技有限公司 | The processing method of the shell spray painting of electric car |
| CN108411313A (en) * | 2018-05-04 | 2018-08-17 | 浙江恒利五金科技有限公司 | The derusting method of utensil made of iron |
| CN109248839A (en) * | 2018-11-14 | 2019-01-22 | 徐州美世通电动车有限公司 | A kind of electric vehicle spray painting pretreatment processing technology |
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Application publication date: 20160720 |
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