CN105772377A - Electrostatic spraying technology for car crusts - Google Patents
Electrostatic spraying technology for car crusts Download PDFInfo
- Publication number
- CN105772377A CN105772377A CN201610229895.5A CN201610229895A CN105772377A CN 105772377 A CN105772377 A CN 105772377A CN 201610229895 A CN201610229895 A CN 201610229895A CN 105772377 A CN105772377 A CN 105772377A
- Authority
- CN
- China
- Prior art keywords
- electrostatic
- car crust
- electrostatic spraying
- nano titanium
- spraying
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
-
- 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
- B05D3/02—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 baking
- B05D3/0254—After-treatment
-
- 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
- B05D2504/00—Epoxy polymers
-
- 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
- B05D2601/00—Inorganic fillers
- B05D2601/20—Inorganic fillers used for non-pigmentation effect
- B05D2601/24—Titanium dioxide, e.g. rutile
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses an electrostatic spraying technology for car crusts. Nanometer titania composite ultraviolet light polymerization powder paint is adopted for electrostatic spraying and comprises, by mass, 45-50 parts of epoxy resin, 30-35 parts of vinyl ether resin, 12-16 parts of nanometer titania powder, 2-6 parts of TPO and 1-3 parts of flatting agents. The electrostatic spraying technology includes the following steps of (1) treatment before acid pickling, (2) electrostatic spraying of powder, (3) supplementary spraying and (4) curing. In this way, the technology is simple and easy to control, the powder spraying rate is high, it is ensured that the groove portion of a crust is sprayed with powder evenly, a formed coating has good adhesive force and high glossiness, and the self-cleaning property is achieved.
Description
Technical field
The present invention relates to Electrostatic Spray Technology field, particularly relate to the electrostatic painting process of a kind of car crust.
Background technology
The purpose of painting dressing automobiles is to make body of a motor car have excellent decorative appearance, weatherability, comfortableness, sealing, corrosion resistance etc., to improve its commodity value and to extend its service life.Powdery paints has higher production efficiency, excellent film performance, good eco-environmental prote and prominent economy, therefore uses more and more extensive in painting dressing automobiles field.
Powdery paints relies on electrostatic spraying to car crust surface, mutual NA powder particle layer forms firm coating after adding heat fusing and combines closely with car crust surface, but owing to car crust structure is complicated, housing groove region often occurs leaking powder or the unequal phenomenon of upper powder, causing the defects such as housing groove partial coating inequality, poor adhesive force, the most existing car crust coating does not the most have self-cleaning performance.
Summary of the invention
The technical problem that present invention mainly solves is to provide the electrostatic painting process of a kind of car crust, and technique is simple and easy to control, and powder utilization is high, can ensure that in housing groove portion, powder is uniform, and the coating adhesion of formation is good, glossiness is high, and has self-cleaning performance.
For solving above-mentioned technical problem, the technical scheme that the present invention uses is: provide the electrostatic painting process of a kind of car crust, using nano titanium oxide composite ultraviolet cured powder paint to carry out electrostatic spraying, raw material and the mass fraction of each raw material that described nano titanium oxide composite ultraviolet curing powder includes be: epoxy resin 45-50 part, vinyl ether resin 30-35 part, nano titanium dioxide powder 12-16 part, TPO 2-6 part, levelling agent 1-3 part；
Described electrostatic painting process comprises the steps:
1) pickling pre-treatment: inserted by car crust in pickle, is through impregnation with washing and removes the oils and fats on its surface, then wash and dry；
2) electrostatic dusting: use nano titanium oxide composite ultraviolet cured powder paint to carry out electrostatic spraying, the distance controlling spray gun and car crust is 80-100mm, arrange electrostatic spraying pressure be 40-45kV, spraying air pressure be 0.5-0.6MPa, car crust surface formed 50-70 μ m-thick bisque；
3) fill spray: the car crust after electrostatic spraying is detected, housing groove portion is filled spray；
4) solidification: detect qualified after, solidify, solidification temperature is 150-160 DEG C, solidify 30-35min.
In a preferred embodiment of the present invention, the particle diameter of described nano titanium oxide composite ultraviolet cured powder paint is 20-40 μm.
In a preferred embodiment of the present invention, during electrostatic dusting, control painting environments humidity≤80%.
The invention has the beneficial effects as follows: technique is simple and easy to control, using nano titanium oxide composite ultraviolet cured powder paint, powder utilization is high, can ensure that in housing groove portion, powder is uniform, and the coating adhesion of formation is good, glossiness is high, and has self-cleaning performance.
Detailed description of the invention
It is described in detail below in conjunction with to presently preferred embodiments of the present invention, so that advantages and features of the invention can be easier to be readily appreciated by one skilled in the art, thus protection scope of the present invention is made apparent clear and definite defining.
Embodiment one:
A kind of electrostatic painting process of car crust, using nano titanium oxide composite ultraviolet cured powder paint to carry out electrostatic spraying, raw material and the mass fraction of each raw material that described nano titanium oxide composite ultraviolet curing powder includes be: epoxy resin 45 parts, vinyl ether resin 34 parts, nano titanium dioxide powder 14 parts, TPO 5 parts, levelling agent 2 parts；
Described electrostatic painting process comprises the steps:
1) pickling pre-treatment: inserted by car crust in pickle, is through impregnation with washing and removes the oils and fats on its surface, then wash and dry；
2) electrostatic dusting: the nano titanium oxide composite ultraviolet cured powder paint using particle diameter to be 20 μm carries out electrostatic spraying, control painting environments humidity≤80%, the distance controlling spray gun and car crust is 80mm, arrange electrostatic spraying pressure be 40kV, spraying air pressure be 0.5MPa, form the bisque of 50 μ m-thick on car crust surface；
3) fill spray: the car crust after electrostatic spraying is detected, housing groove portion is filled spray；
4) solidification: detect qualified after, solidify, solidification temperature is 150 DEG C, solidify 30min.
Embodiment two:
A kind of electrostatic painting process of car crust, using nano titanium oxide composite ultraviolet cured powder paint to carry out electrostatic spraying, raw material and the mass fraction of each raw material that described nano titanium oxide composite ultraviolet curing powder includes be: epoxy resin 46 parts, vinyl ether resin 35 parts, nano titanium dioxide powder 16 parts, TPO 2 parts, levelling agent 1 part；
Described electrostatic painting process comprises the steps:
1) pickling pre-treatment: inserted by car crust in pickle, is through impregnation with washing and removes the oils and fats on its surface, then wash and dry；
2) electrostatic dusting: the nano titanium oxide composite ultraviolet cured powder paint using particle diameter to be 30 μm carries out electrostatic spraying, control painting environments humidity≤80%, the distance controlling spray gun and car crust is 90mm, arrange electrostatic spraying pressure be 42kV, spraying air pressure be 0.55MPa, form the bisque of 60 μ m-thick on car crust surface；
3) fill spray: the car crust after electrostatic spraying is detected, housing groove portion is filled spray；
4) solidification: detect qualified after, solidify, solidification temperature is 155 DEG C, solidify 30min.
Embodiment three:
A kind of electrostatic painting process of car crust, using nano titanium oxide composite ultraviolet cured powder paint to carry out electrostatic spraying, raw material and the mass fraction of each raw material that described nano titanium oxide composite ultraviolet curing powder includes be: epoxy resin 50 parts, vinyl ether resin 30 parts, nano titanium dioxide powder 12 parts, TPO 6 parts, levelling agent 2 parts；
Described electrostatic painting process comprises the steps:
1) pickling pre-treatment: inserted by car crust in pickle, is through impregnation with washing and removes the oils and fats on its surface, then wash and dry；
2) electrostatic dusting: the nano titanium oxide composite ultraviolet cured powder paint using particle diameter to be 40 μm carries out electrostatic spraying, control painting environments humidity≤80%, the distance controlling spray gun and car crust is 100mm, arrange electrostatic spraying pressure be 45kV, spraying air pressure be 0.6MPa, form the bisque of 70 μ m-thick on car crust surface；
3) fill spray: the car crust after electrostatic spraying is detected, housing groove portion is filled spray；
4) solidification: detect qualified after, solidify, solidification temperature is 160 DEG C, solidify 35min.
Present invention is disclosed the electrostatic painting process of a kind of car crust, technique is simple and easy to control, uses nano titanium oxide composite ultraviolet cured powder paint, powder utilization is high, can ensure that in housing groove portion, powder is uniform, the coating adhesion of formation is good, glossiness is high, and has self-cleaning performance.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure utilizing description of the invention content to be made or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical fields, the most in like manner it is included in the scope of patent protection of the present invention.
Claims (3)
1. the electrostatic painting process of a car crust, it is characterized in that, using nano titanium oxide composite ultraviolet cured powder paint to carry out electrostatic spraying, raw material and the mass fraction of each raw material that described nano titanium oxide composite ultraviolet curing powder includes be: epoxy resin 45-50 part, vinyl ether resin 30-35 part, nano titanium dioxide powder 12-16 part, TPO 2-6 part, levelling agent 1-3 part；
Described electrostatic painting process comprises the steps:
1) pickling pre-treatment: inserted by car crust in pickle, is through impregnation with washing and removes the oils and fats on its surface, then wash and dry；
2) electrostatic dusting: use nano titanium oxide composite ultraviolet cured powder paint to carry out electrostatic spraying, the distance controlling spray gun and car crust is 80-100mm, arrange electrostatic spraying pressure be 40-45kV, spraying air pressure be 0.5-0.6MPa, car crust surface formed 50-70 μ m-thick bisque；
3) fill spray: the car crust after electrostatic spraying is detected, housing groove portion is filled spray；
4) solidification: detect qualified after, solidify, solidification temperature is 150-160 DEG C, solidify 30-35min.
The electrostatic painting process of car crust the most according to claim 1, it is characterised in that the particle diameter of described nano titanium oxide composite ultraviolet cured powder paint is 20-40 μm.
The electrostatic painting process of car crust the most according to claim 1, it is characterised in that during electrostatic dusting, controls painting environments humidity≤80%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610229895.5A CN105772377A (en) | 2016-04-14 | 2016-04-14 | Electrostatic spraying technology for car crusts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610229895.5A CN105772377A (en) | 2016-04-14 | 2016-04-14 | Electrostatic spraying technology for car crusts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105772377A true CN105772377A (en) | 2016-07-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610229895.5A Pending CN105772377A (en) | 2016-04-14 | 2016-04-14 | Electrostatic spraying technology for car crusts |
Country Status (1)
| Country | Link |
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| CN (1) | CN105772377A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109332113A (en) * | 2018-10-24 | 2019-02-15 | 昆山晶业汽车配件有限公司 | Automotive outer decorative board Powder Electrostatic Coating Technology |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0846033B1 (en) * | 1996-06-07 | 2002-12-04 | BASF Coatings Aktiengesellschaft | Application of a heat-sensitive material with powder paint |
| CN104353599A (en) * | 2014-11-11 | 2015-02-18 | 沈阳黎明航空发动机(集团)有限责任公司 | Method using glass beads to treat anti-rust paint layer of steel aviation part |
| CN104624448A (en) * | 2013-11-12 | 2015-05-20 | 天津三环乐喜新材料有限公司 | Electrostatic powder surface spraying method for NdFeB permanent magnet |
| CN105251675A (en) * | 2014-07-15 | 2016-01-20 | 匡永刚 | Surface spraying process |
-
2016
- 2016-04-14 CN CN201610229895.5A patent/CN105772377A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0846033B1 (en) * | 1996-06-07 | 2002-12-04 | BASF Coatings Aktiengesellschaft | Application of a heat-sensitive material with powder paint |
| CN104624448A (en) * | 2013-11-12 | 2015-05-20 | 天津三环乐喜新材料有限公司 | Electrostatic powder surface spraying method for NdFeB permanent magnet |
| CN105251675A (en) * | 2014-07-15 | 2016-01-20 | 匡永刚 | Surface spraying process |
| CN104353599A (en) * | 2014-11-11 | 2015-02-18 | 沈阳黎明航空发动机(集团)有限责任公司 | Method using glass beads to treat anti-rust paint layer of steel aviation part |
Non-Patent Citations (2)
| Title |
|---|
| 何昌沛: "《塑料粉末静电喷涂新工艺》", 《防腐包装》 * |
| 孙志英等: "《紫外光固化粉末涂料》", 《热固性树脂》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109332113A (en) * | 2018-10-24 | 2019-02-15 | 昆山晶业汽车配件有限公司 | Automotive outer decorative board Powder Electrostatic Coating Technology |
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Application publication date: 20160720 |
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