CN107418386A - A kind of process of car floor powder coating - Google Patents
A kind of process of car floor powder coating Download PDFInfo
- Publication number
- CN107418386A CN107418386A CN201710783028.0A CN201710783028A CN107418386A CN 107418386 A CN107418386 A CN 107418386A CN 201710783028 A CN201710783028 A CN 201710783028A CN 107418386 A CN107418386 A CN 107418386A
- Authority
- CN
- China
- Prior art keywords
- car floor
- powder coating
- raw material
- powdery paints
- processing aid
- 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.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
- C09D163/04—Epoxynovolacs
-
- 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
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
- B05D1/04—Processes for applying liquids or other fluent materials performed by spraying involving the use of an electrostatic field
- B05D1/06—Applying particulate materials
-
- 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
- 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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/03—Powdery paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/03—Powdery paints
- C09D5/031—Powdery paints characterised by particle size or shape
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/03—Powdery paints
- C09D5/033—Powdery paints characterised by the additives
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a kind of process of car floor powder coating, comprise the following steps：Prepare raw material, by raw material it is well mixed after, through double screw extruder melting extrusion, finally crush, levigate powdery paints be made；Car floor is subjected to sandblasting roughening, injection cleaning by degreasing, hot water injection's processing and drying process；After pretreated car floor is preheated under electric field environment, powder coating and their application operation is carried out to preheating car floor surface using electrostatic gun；The car floor after application will be completed to cool down after hot setting, carry out quality examination, it is qualified after pack and produce.Process proposed by the present invention; it is simple to operate, condition of cure is gentle; hardening time is short; gained film has the performances such as good anti-corrosion, antirust, anticollision, noise control, wear-resisting and shock resistance; intensity height, good dispersion, tack are high; good protective effect is served to car floor, can effectively extend the service life of car floor, be worthy to be popularized.
Description
Technical field
The present invention relates to powder coating process technical field, more particularly to a kind of technique side of car floor powder coating
Method.
Background technology
Car floor is a part for automobile chassis, and it is a platform to build with ferrous materials, to install automobile
Engine and its each part, assembly and carrying compartment, so as to form the moulded of automobile.Car floor is the core of automobile
One of part, the quality of its quality are closely related with the stability of galloping and the security of itself.In the daily of automobile
In use, the reason for causing car floor to damage mainly has backing, foreign matter shock and corrosion etc..If car floor backing, car
Stability in running at high speed can substantially reduce, and sludge and acid rain etc. can cause to corrode to car floor, so that vapour
The depression of bearing force of car bottom plate, heavy corrosion cause what car floor was perforated, also result in automobile and occur safety issue in itself.
Due to the complexity of the daily traveling road conditions of automobile, coating protection is carried out to car floor becomes very necessary.In the prior art, vapour
The protection of underbody plate coating is more to be sprayed using water paint, and its spraying coating process has condition of cure complexity, spray cycles length, spray
Apply the defects of of low quality.Moreover, the water-based anticorrosive paint in conventional art, to improve the anticorrosion of anticorrosive paint effect
Fruit, addition is to health and the rust resisting pigment containing chromium of environmental concerns more in coating.With problem of environmental pollution not
Disconnected aggravation and the continuous reinforcement of people's environmental consciousness, people require liquid more and more higher to the feature of environmental protection of car floor protective coating.
Based on above statement, the present invention proposes a kind of process of car floor powder coating.
The content of the invention
The invention aims to solve shortcoming present in prior art, and a kind of car floor powder proposed applies
The process of dress.
A kind of process of car floor powder coating, comprises the following steps：
S1, prepare raw material, including 22~26wt% of novolac epoxy resin, 17~22wt% of carboxyl polyester resin, epoxy acrylate
19~25wt%, 1~5wt% of pigment, 8~12wt% of glass-cermic powder, the processing aid of 1~5wt% of graphene oxide and surplus, will be above-mentioned
After raw material is well mixed, through double screw extruder melting extrusion, finally crush, levigate powdery paints be made；
S2, after car floor is carried out into sandblasting roughening treatment, at a temperature of being placed in 80~95 DEG C, injection cleaning by degreasing is carried out successively
Handled with hot water injection, clean 18~25min every time, at a temperature of 108~123 DEG C are placed in after the completion of cleaning, dry 8~
15min, obtain pretreatment car floor；
S3, manufactured powdery paints in step S1 loaded in powder feeder, and pretreated car floor in step S2 is pre-
Heat is to 248~278 DEG C, and then under electric field environment, powdery paints painting is carried out to preheating car floor surface using electrostatic gun
Dress operation, obtains film in uniform thickness；
S4, in the environment of the car floor after completion application in step S3 is placed in into 178~205 DEG C, solidifies 15~28min, treat
After it is cooled down, carry out quality examination, it is qualified after pack and produce.
Preferably, the raw material in the step S1 include 23~25wt% of novolac epoxy resin, carboxyl polyester resin 18~
21wt%, 20~22wt% of epoxy acrylate, 2~4wt% of pigment, 9~11wt% of glass-cermic powder, 2~4wt% of graphene oxide and remaining
The processing aid of amount.
Preferably, the raw material in the step S1 includes novolac epoxy resin 24wt%, carboxyl polyester resin 20wt%, epoxy
Acrylate 21wt%, pigment 3wt%, glass-cermic powder 10wt%, the processing aid of graphene oxide 3wt% and surplus.
Preferably, the processing aid in the step S1 include curing agent, accelerator, degasser, antiwear additive, levelling agent,
Antioxidant and dispersant.
Preferably, the particle diameter of the powdery paints A in the step S1 is 1~300 μm.
Preferably, the coating thickness in the step S3 is 360~650 μm.
The process of a kind of car floor powder coating proposed by the present invention, using high tack, high resiliency, high anti-corrosion
Property and novolac epoxy resin, carboxyl polyester resin and the epoxy acrylate of high rust-preventing characteristic be raw material, coordinate color stuffing and auxiliary agent
Be mixed and made into environment friendly and pollution-free, recoverable powdery paints, gained powdery paints have good anti-corrosion, antirust, anticollision,
The performances such as noise control, wear-resisting and shock resistance, its intensity height, good dispersion, tack are high, and preparation method is simple, and preparation cost is low, use
In car floor application is simple to operate, condition of cure is gentle, hardening time is short, and gained coating thickness is uniform, fine and close, smooth, no
Play drum, do not peel, good protective effect is served to car floor, can effectively extend the service life of car floor, be worth
It must promote.
Embodiment
The present invention is made with reference to specific embodiment further to explain.
Embodiment one
A kind of process of car floor powder coating proposed by the present invention, comprises the following steps：
S1, prepare raw material, including novolac epoxy resin 26wt%, carboxyl polyester resin 22wt%, epoxy acrylate 25wt%, face
Expect the processing aid of 5wt%, glass-cermic powder 12wt%, graphene oxide 5wt% and surplus, wherein processing aid includes curing agent, promoted
Agent, degasser, antiwear additive, levelling agent, antioxidant and dispersant, after above-mentioned raw materials are well mixed, melted through double screw extruder
Melt extrusion, finally crushing, the levigate particle diameter that is made is 300 μm of powdery paints；
S2, after car floor is carried out into sandblasting roughening treatment, at a temperature of being placed in 95 DEG C, carry out spraying cleaning by degreasing and heat successively
Water flushing is handled, and cleans 25min every time, at a temperature of 123 DEG C are placed in after the completion of cleaning, are dried 15min, is obtained pretreatment automobile bottom
Plate；
S3, manufactured powdery paints in step S1 loaded in powder feeder, and pretreated car floor in step S2 is pre-
Heat is to 278 DEG C, and then under electric field environment, powder coating and their application behaviour is carried out to preheating car floor surface using electrostatic gun
Make, obtain the film that thickness is 650 μm；
S4, in the environment of the car floor after completion application in step S3 is placed in into 205 DEG C, solidify 28min, after its cooling,
Carry out quality examination, it is qualified after pack and produce.
Embodiment two
A kind of process of car floor powder coating proposed by the present invention, comprises the following steps：
S1, prepare raw material, including novolac epoxy resin 24wt%, carboxyl polyester resin 20wt%, epoxy acrylate 21wt%, face
Expect the processing aid of 3wt%, glass-cermic powder 10wt%, graphene oxide 3wt% and surplus, wherein processing aid includes curing agent, promoted
Agent, degasser, antiwear additive, levelling agent, antioxidant and dispersant, after above-mentioned raw materials are well mixed, melted through double screw extruder
Melt extrusion, finally crushing, the levigate particle diameter that is made is 100 μm of powdery paints；
S2, after car floor is carried out into sandblasting roughening treatment, at a temperature of being placed in 88 DEG C, carry out spraying cleaning by degreasing and heat successively
Water flushing is handled, and cleans 22min every time, at a temperature of 115 DEG C are placed in after the completion of cleaning, are dried 12min, is obtained pretreatment automobile bottom
Plate；
S3, manufactured powdery paints in step S1 loaded in powder feeder, and pretreated car floor in step S2 is pre-
Heat is to 262 DEG C, and then under electric field environment, powder coating and their application behaviour is carried out to preheating car floor surface using electrostatic gun
Make, obtain the film that thickness is 500 μm；
S4, in the environment of the car floor after completion application in step S3 is placed in into 190 DEG C, solidify 22min, after its cooling,
Carry out quality examination, it is qualified after pack and produce.
Embodiment three
A kind of process of car floor powder coating proposed by the present invention, comprises the following steps：
S1, prepare raw material, including novolac epoxy resin 22wt%, carboxyl polyester resin 17wt%, epoxy acrylate 19wt%, face
Expect the processing aid of 1wt%, glass-cermic powder 8wt%, graphene oxide 1wt% and surplus, wherein processing aid includes curing agent, promoted
Agent, degasser, antiwear additive, levelling agent, antioxidant and dispersant, after above-mentioned raw materials are well mixed, melted through double screw extruder
Melt extrusion, finally crushing, the levigate particle diameter that is made is 1 μm of powdery paints；
S2, after car floor is carried out into sandblasting roughening treatment, at a temperature of being placed in 80 DEG C, carry out spraying cleaning by degreasing and heat successively
Water flushing is handled, and cleans 18min every time, at a temperature of 108 DEG C are placed in after the completion of cleaning, are dried 8min, is obtained pretreatment automobile bottom
Plate；
S3, manufactured powdery paints in step S1 loaded in powder feeder, and pretreated car floor in step S2 is pre-
Heat is to 248 DEG C, and then under electric field environment, powder coating and their application behaviour is carried out to preheating car floor surface using electrostatic gun
Make, obtain the film that thickness is 360 μm；
S4, in the environment of the car floor after completion application in step S3 is placed in into 178 DEG C, solidify 15min, after its cooling,
Carry out quality examination, it is qualified after pack and produce.
The process of the car floor powder coating that its is proposed is tested in the embodiment of the present invention one~tri- respectively, after application
The coating performance index of car floor, draw following parameter：
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto, it is any
Those familiar with the art the invention discloses technical scope in, technique according to the invention scheme and its invention
Design is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (6)
1. a kind of process of car floor powder coating, it is characterised in that comprise the following steps：
S1, prepare raw material, including 22~26wt% of novolac epoxy resin, 17~22wt% of carboxyl polyester resin, epoxy acrylate
19~25wt%, 1~5wt% of pigment, 8~12wt% of glass-cermic powder, the processing aid of 1~5wt% of graphene oxide and surplus, will be above-mentioned
After raw material is well mixed, through double screw extruder melting extrusion, finally crush, levigate powdery paints be made；
S2, after car floor is carried out into sandblasting roughening treatment, at a temperature of being placed in 80~95 DEG C, injection cleaning by degreasing is carried out successively
Handled with hot water injection, clean 18~25min every time, at a temperature of 108~123 DEG C are placed in after the completion of cleaning, dry 8~
15min, obtain pretreatment car floor；
S3, manufactured powdery paints in step S1 loaded in powder feeder, and pretreated car floor in step S2 is pre-
Heat is to 248~278 DEG C, and then under electric field environment, powdery paints painting is carried out to preheating car floor surface using electrostatic gun
Dress operation, obtains film in uniform thickness；
S4, in the environment of the car floor after completion application in step S3 is placed in into 178~205 DEG C, solidifies 15~28min, treat
After it is cooled down, carry out quality examination, it is qualified after pack and produce.
A kind of 2. process of car floor powder coating according to claim 1, it is characterised in that the step S1
In raw material include 23~25wt% of novolac epoxy resin, 18~21wt% of carboxyl polyester resin, epoxy acrylate 20~
22wt%, 2~4wt% of pigment, 9~11wt% of glass-cermic powder, the processing aid of 2~4wt% of graphene oxide and surplus.
A kind of 3. process of car floor powder coating according to claim 1, it is characterised in that the step S1
In raw material include novolac epoxy resin 24wt%, carboxyl polyester resin 20wt%, epoxy acrylate 21wt%, pigment 3wt%, casting
Stone flour 10wt%, graphene oxide 3wt% and surplus processing aid.
A kind of 4. process of car floor powder coating according to claim 1, it is characterised in that the step S1
In processing aid include curing agent, accelerator, degasser, antiwear additive, levelling agent, antioxidant and dispersant.
A kind of 5. process of car floor powder coating according to claim 1, it is characterised in that the step S1
In powdery paints A particle diameter be 1~300 μm.
A kind of 6. process of car floor powder coating according to claim 1, it is characterised in that the step S3
In coating thickness be 360~650 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710783028.0A CN107418386A (en) | 2017-09-03 | 2017-09-03 | A kind of process of car floor powder coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710783028.0A CN107418386A (en) | 2017-09-03 | 2017-09-03 | A kind of process of car floor powder coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107418386A true CN107418386A (en) | 2017-12-01 |
Family
ID=60435664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710783028.0A Pending CN107418386A (en) | 2017-09-03 | 2017-09-03 | A kind of process of car floor powder coating |
Country Status (1)
| Country | Link |
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| CN (1) | CN107418386A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112916349A (en) * | 2021-01-21 | 2021-06-08 | 长沙宝盛汽车配件有限公司 | Powder spraying process for automobile parts |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015056488A (en) * | 2013-09-11 | 2015-03-23 | 株式会社Uacj | Aluminum coating material for capacitor case |
| CN104668171A (en) * | 2013-11-28 | 2015-06-03 | 天津兴船重机装备有限公司 | Novel coating process |
| CN106519914A (en) * | 2016-10-17 | 2017-03-22 | 铜陵市肆得科技有限责任公司 | Anti-high temperature oxidation long-acting antirust composite epoxy powder paint for automobile chassis and preparation method thereof |
-
2017
- 2017-09-03 CN CN201710783028.0A patent/CN107418386A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015056488A (en) * | 2013-09-11 | 2015-03-23 | 株式会社Uacj | Aluminum coating material for capacitor case |
| CN104668171A (en) * | 2013-11-28 | 2015-06-03 | 天津兴船重机装备有限公司 | Novel coating process |
| CN106519914A (en) * | 2016-10-17 | 2017-03-22 | 铜陵市肆得科技有限责任公司 | Anti-high temperature oxidation long-acting antirust composite epoxy powder paint for automobile chassis and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112916349A (en) * | 2021-01-21 | 2021-06-08 | 长沙宝盛汽车配件有限公司 | Powder spraying process for automobile parts |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171201 |