CN112844992A - Surface spraying process for automobile parts - Google Patents
Surface spraying process for automobile parts Download PDFInfo
- Publication number
- CN112844992A CN112844992A CN202110006157.5A CN202110006157A CN112844992A CN 112844992 A CN112844992 A CN 112844992A CN 202110006157 A CN202110006157 A CN 202110006157A CN 112844992 A CN112844992 A CN 112844992A
- Authority
- CN
- China
- Prior art keywords
- spraying
- paint
- spray gun
- automobile
- preparing
- 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
Links
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
- B05D7/50—Multilayers
- B05D7/56—Three layers or more
- B05D7/58—No clear coat specified
- B05D7/584—No clear coat specified at least some layers being let to dry, at least partially, before applying the next layer
-
- 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
-
- 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
- B05D7/24—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 for applying particular liquids or other fluent 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
- B05D2503/00—Polyurethanes
-
- 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
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 automobile part surface spraying process, which comprises the following steps: the method comprises the following steps: treating a field; step two: surface treatment of the fittings: carrying out dust removal, degreasing, grinding and polishing on the surfaces of the automobile parts, removing static electricity, carrying out phosphating treatment on the surfaces of the parts, and drying for later use; step three: preparing the paint: preparing paint according to the proportion requirement, uniformly stirring, measuring the viscosity of the paint in a use state, filtering the paint, filtering out impurities in the paint, and preparing the paint for later use; step four: spraying: spraying a primer, spraying a middle paint and spraying a finish; step five: and (4) acceptance: and (4) checking whether the surfaces of the automobile parts have sagging, sand-shaped surfaces, orange peels, wrinkles, bleeding, fine lines, cracks, pinholes, exposed bottoms and uneven conditions, and packaging and warehousing after the inspection is qualified. Compared with the prior art, the invention has the advantages that: the corrosion resistance is good, and the defects of peeling or cracking and the like are not easy to occur, so that the quality of automobile parts is improved.
Description
Technical Field
The invention relates to the technical field of automobile part spraying processes, in particular to an automobile part surface spraying process.
Background
With the continuous progress and development of society, automobiles are popularized and become daily tools for riding instead of walk for most people, the automobiles are composed of a plurality of accessories, the quality of surface treatment of the accessories directly relates to the integral quality and quality of the automobiles, the surface spraying process of the existing automobile accessories is simple, although the appearance looks bright, clean and beautiful and very good, the anticorrosion performance is poor after the paint is knocked off by the outside, and the painted surface sprayed on the outer surface of each accessory is easy to peel or crack after the automobiles are exposed to the sun for a long time, so that the quality of the automobile accessories is greatly reduced.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the technical defects, provide a surface spraying process for automobile parts, have good corrosion resistance, and simultaneously have the defects of difficult peeling or cracking and the like, and improve the quality of the automobile parts.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: the surface spraying process of the automobile parts comprises the following steps:
the method comprises the following steps: site treatment: cleaning a construction site, controlling the temperature of a workshop to be 15-35 ℃, controlling the optimal temperature range to be 20-30 ℃, and controlling the relative humidity to be less than 80%;
step two: surface treatment of the fittings: the method comprises the following steps of carrying out dust removal, degreasing, grinding and polishing on the surface of the automobile part to thoroughly remove the defects of flash, sand coating, burrs, welding slag and splashing surface, removing static electricity, carrying out phosphating treatment on the surface of the part, and drying for later use;
step three: preparing the paint: preparing paint according to the proportion requirement, uniformly stirring, standing for 15-30 minutes, measuring the viscosity of the paint in a use state, filtering the paint through a filter, filtering out impurities in the paint, and preparing the paint for later use;
step four: spraying: 1) primer spraying: adopting a spray gun, adjusting the sector and air pressure of the spray gun according to the spraying distance, spraying for 2-3 times, spraying for 40-80 μm in thickness and 4-8MPa in pressure, and drying after spraying;
2) intermediate coating spraying: adopting a spray gun, adjusting the sector and air pressure of the spray gun according to the spraying distance, spraying for 2-3 times, spraying for 80-110 μm, spraying for 4-8MPa, and drying after spraying;
3) and (3) spraying finish paint: adopting a spray gun, adjusting the sector and air pressure of the spray gun according to the spraying distance, spraying for 2-3 times, spraying for 50-90 μm in thickness and 4-8MPa in pressure, and drying after spraying;
step five: and (4) acceptance: and (4) checking whether the surfaces of the automobile parts have sagging, sand-shaped surfaces, orange peels, wrinkles, bleeding, fine lines, cracks, pinholes, exposed bottoms and uneven conditions, and packaging and warehousing after the inspection is qualified.
Preferably, the primer is an epoxy zinc-rich primer, an air spraying mode is adopted, the intermediate coating is a thick-paste epoxy coating, an air spraying mode is adopted, and the finish coating is a polyurethane finish coating and an air spraying mode is adopted.
Preferably, the spray gun should be cleaned prior to spraying and checked for the ability to produce a better spray pattern.
Preferably, after the surface of the accessory is treated, the matched primer is sprayed within 8 hours, and dust removal treatment is needed before the next spraying after each spraying.
Preferably, the dust removal is performed by surface sweeping with high-pressure gas.
Compared with the prior art, the invention has the advantages that: comparatively careful cleanness has been carried out to the place and the auto-parts that spray paint before spraying paint, the cleanness of spraying environment has been guaranteed, ambient temperature simultaneously, and the inspection of spray gun during the spraying, the pressure of spraying, thickness and the number of piles have all carried out strict control, great improvement the quality of spraying, cause in the service environment in later stage, the defect is difficult to appear in the accessory surface, epoxy zinc-rich priming paint is chooseed for use to the priming paint in addition, this lacquer natural drying is fast, adhesive force is strong, the corrosion protection ability is stronger, even expose the priming paint after auto-parts bumps at external force, also have stronger corrosion protection, well scribble thick liquid type epoxy paint of intermediate coat and finish paint polyurethane finish paint all have better corrosion protection simultaneously, thereby prolong auto-parts's life.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
the invention discloses an automobile part surface spraying process, which comprises the following steps:
the method comprises the following steps: site treatment: cleaning a construction site, controlling the temperature of a workshop to be 15-35 ℃, controlling the optimal temperature range to be 20-30 ℃, and controlling the relative humidity to be less than 80%;
step two: surface treatment of the fittings: the method comprises the following steps of carrying out dust removal, degreasing, grinding and polishing on the surface of the automobile part to thoroughly remove the defects of flash, sand coating, burrs, welding slag and splashing surface, removing static electricity, carrying out phosphating treatment on the surface of the part, and drying for later use;
step three: preparing the paint: preparing paint according to the proportion requirement, uniformly stirring, standing for 15-30 minutes, measuring the viscosity of the paint in a use state, filtering the paint through a filter, filtering out impurities in the paint, and preparing the paint for later use;
step four: spraying: 1) primer spraying: adopting a spray gun, adjusting the sector and air pressure of the spray gun according to the spraying distance, spraying for 2-3 times, spraying for 40-80 μm in thickness and 4-8MPa in pressure, and drying after spraying;
4) intermediate coating spraying: adopting a spray gun, adjusting the sector and air pressure of the spray gun according to the spraying distance, spraying for 2-3 times, spraying for 80-110 μm, spraying for 4-8MPa, and drying after spraying;
5) and (3) spraying finish paint: adopting a spray gun, adjusting the sector and air pressure of the spray gun according to the spraying distance, spraying for 2-3 times, spraying for 50-90 μm in thickness and 4-8MPa in pressure, and drying after spraying;
step five: and (4) acceptance: and (4) checking whether the surfaces of the automobile parts have sagging, sand-shaped surfaces, orange peels, wrinkles, bleeding, fine lines, cracks, pinholes, exposed bottoms and uneven conditions, and packaging and warehousing after the inspection is qualified.
The primer is an epoxy zinc-rich primer, an air spraying mode is adopted, the intermediate coating is a thick paste type epoxy coating, an air spraying mode is adopted, the finish coating is a polyurethane finish coating, and an air spraying mode is adopted, so that the corrosion resistance of the coating surface is improved.
The spray gun is cleaned before spraying, whether a better spray shape can be generated or not is checked, and the spraying uniformity is ensured.
After the surface of the part is treated, the matched primer is sprayed within 8 hours, and meanwhile, dust removal treatment is needed before next spraying after each spraying is finished, so that the surface of the automobile part is clean, and the spraying quality is further improved.
The surface sweeping and dust removal are carried out by high-pressure air in the dust removal process, the dust removal effect is good, the efficiency is high, and therefore the working efficiency is improved.
Comparatively careful cleanness has been carried out to the place and the auto-parts that spray paint before spraying paint, the cleanness of spraying environment has been guaranteed, ambient temperature simultaneously, and the inspection of spray gun during the spraying, the pressure of spraying, thickness and the number of piles have all carried out strict control, great improvement the quality of spraying, cause in the service environment in later stage, the defect is difficult to appear in the accessory surface, epoxy zinc-rich priming paint is chooseed for use to the priming paint in addition, this lacquer natural drying is fast, adhesive force is strong, the corrosion protection ability is stronger, even expose the priming paint after auto-parts bumps at external force, also have stronger corrosion protection, well scribble thick liquid type epoxy paint of intermediate coat and finish paint polyurethane finish paint all have better corrosion protection simultaneously, thereby prolong auto-parts's life.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (5)
1. The surface spraying process of the automobile parts is characterized by comprising the following steps: the method comprises the following steps:
the method comprises the following steps: site treatment: cleaning a construction site, controlling the temperature of a workshop to be 15-35 ℃, controlling the optimal temperature range to be 20-30 ℃, and controlling the relative humidity to be less than 80%;
step two: surface treatment of the fittings: the method comprises the following steps of carrying out dust removal, degreasing, grinding and polishing on the surface of the automobile part to thoroughly remove the defects of flash, sand coating, burrs, welding slag and splashing surface, removing static electricity, carrying out phosphating treatment on the surface of the part, and drying for later use;
step three: preparing the paint: preparing paint according to the proportion requirement, uniformly stirring, standing for 15-30 minutes, measuring the viscosity of the paint in a use state, filtering the paint through a filter, filtering out impurities in the paint, and preparing the paint for later use;
step four: spraying: 1) primer spraying: adopting a spray gun, adjusting the sector and air pressure of the spray gun according to the spraying distance, spraying for 2-3 times, spraying for 40-80 μm in thickness and 4-8MPa in pressure, and drying after spraying;
2) intermediate coating spraying: adopting a spray gun, adjusting the sector and air pressure of the spray gun according to the spraying distance, spraying for 2-3 times, spraying for 80-110 μm, spraying for 4-8MPa, and drying after spraying;
3) and (3) spraying finish paint: adopting a spray gun, adjusting the sector and air pressure of the spray gun according to the spraying distance, spraying for 2-3 times, spraying for 50-90 μm in thickness and 4-8MPa in pressure, and drying after spraying;
step five: and (4) acceptance: and (4) checking whether the surfaces of the automobile parts have sagging, sand-shaped surfaces, orange peels, wrinkles, bleeding, fine lines, cracks, pinholes, exposed bottoms and uneven conditions, and packaging and warehousing after the inspection is qualified.
2. The automobile accessory surface spraying process according to claim 1, wherein: the primer adopts epoxy zinc-rich primer, adopts an air spraying mode, the intermediate coat adopts thick paste type epoxy paint, adopts an air spraying mode, and the finish paint adopts polyurethane finish paint and an air spraying mode.
3. The automobile accessory surface spraying process according to claim 1, wherein: the spray gun should be cleaned prior to spraying and checked for the ability to produce a better spray pattern.
4. The automobile accessory surface spraying process according to claim 1, wherein: after the surface of the accessory is treated, the matched primer is sprayed within 8 hours, and dust removal treatment is needed before the next spraying after each spraying.
5. The automobile accessory surface spraying process according to claim 1, wherein: the dust removal adopts high-pressure gas to perform surface blowing dust removal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110006157.5A CN112844992A (en) | 2021-01-05 | 2021-01-05 | Surface spraying process for automobile parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110006157.5A CN112844992A (en) | 2021-01-05 | 2021-01-05 | Surface spraying process for automobile parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112844992A true CN112844992A (en) | 2021-05-28 |
Family
ID=76001653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110006157.5A Pending CN112844992A (en) | 2021-01-05 | 2021-01-05 | Surface spraying process for automobile parts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112844992A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113817375A (en) * | 2021-09-30 | 2021-12-21 | 上海燕兴科技实业有限公司 | Adapter surface spray coating and spray coating process |
-
2021
- 2021-01-05 CN CN202110006157.5A patent/CN112844992A/en active Pending
Non-Patent Citations (2)
| Title |
|---|
| 李荣俊等: "当前我国防腐涂装工程中若干问题的讨论", 《现代涂料与涂装》 * |
| 王庆军等: "钢结构涂装施工的质量控制", 《电镀与涂饰》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113817375A (en) * | 2021-09-30 | 2021-12-21 | 上海燕兴科技实业有限公司 | Adapter surface spray coating and spray coating process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107744929A (en) | A kind of 3C1B coating process | |
| CN111005051B (en) | Preparation method of metal piece surface composite coating | |
| CN105964510A (en) | Varnish-baking surface coating technology | |
| CN109550670A (en) | A kind of one baking coating process of the painting of cold aqueous three | |
| CN103203307A (en) | Production technique of fluorocarbon paint coated profiles | |
| CN109746150A (en) | A kind of finishing line | |
| CN111760763A (en) | Automatic electronic product surface spraying process | |
| CN109482446A (en) | A kind of process of paint line | |
| CN110681551A (en) | Color register coating process method for automobile multi-color automobile body | |
| CN110681556A (en) | Automobile mirror coating process | |
| CN114308593A (en) | Fluorocarbon paint spraying method for aluminum alloy pedestrian overpass section | |
| CN101966514B (en) | Painting method | |
| CN112844992A (en) | Surface spraying process for automobile parts | |
| CN111850482A (en) | Vacuum plating PVD coating process | |
| CN111804549A (en) | Hub coating process | |
| CN110665782A (en) | Paint line process with auxiliary process | |
| CN112620048A (en) | 3D color coating method for automobile body | |
| CN101491799A (en) | Paint-coating technique | |
| CN102276164B (en) | Process for performing vacuum plating on glass | |
| CN113546828A (en) | Water-based paint vehicle body spraying process | |
| CN111389691A (en) | Spraying process for inner decoration plate of cooling reflux door | |
| CN114602774A (en) | Anti-corrosion and anti-oil-stain aluminum profile color-changing spraying process | |
| CN1608744A (en) | Method of repairing local damaged coating on metal surface | |
| CN109537028A (en) | A kind of automobile parts electrophoresis coating method | |
| CN113770003A (en) | Spraying method for improving quality of primer of blade profile anti-corrosion coating |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210528 |