Oil paint coating line-based process for coating water paint in two layers on automotive plastic exterior trimming part

A technology for exterior parts and production lines, used in coatings, devices for applying liquid to surfaces, and surface pretreatment, etc., which can solve problems such as energy consumption, high quality risk, and long time.

Inactive Publication Date: 2010-03-17
SHENYANG MINGHUA MOULD & PLASTIC TECH CO LTD
View PDF3 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The second is the energy consumption of dealing with harmful emissions (exhaust gas is usually burned)
If the construction process of foreign water-based paint is transplanted to China, it is necessary to add a color paint oven on the existing basis. Because this transformation destroys the balance of the original system, it needs to be transformed from the process environment and the entire automatic con...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Oil paint coating line-based process for coating water paint in two layers on automotive plastic exterior trimming part
  • Oil paint coating line-based process for coating water paint in two layers on automotive plastic exterior trimming part
  • Oil paint coating line-based process for coating water paint in two layers on automotive plastic exterior trimming part

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] From the technical point of view, the following technical difficulties need to be solved:

[0011] 1) Substrate pretreatment 2) Water-based topcoat and oil-based paint isolation technology 3) Paint film drying

[0012] 1. Substrate pretreatment

[0013] It includes three steps of water washing and drying, flame treatment, and electrostatic dust removal; the purpose of water washing is to remove grease, garbage, particles and other pollutants on the surface of the substrate that affect the performance and appearance of the paint film. Oil-based paints and water-based paints are at this point consistent. Generally, flame treatment is not required in high-temperature oily paint systems, but flame treatment is a necessary process in low-temperature systems to increase the surface energy of the substrate and increase the adhesion of the paint film. In order to meet the quality requirements, different paint manufacturers have surface energy parameter requirements for flame ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses an oil paint coating line-based process for coating water paint in two layers on an automotive plastic exterior trimming part. In the process, to implement two-layer coating technology, an oil/water-based insulation combined system of a robot is imporved and the temperature of a base paint oven in an oil-based production line is regulated by process control of a pretreatment step and by using stable industrial propane (with a purity of more than 95 percent) as a flame treatment fuel and executing base material flame treatment experimental design, base paint spraying isavoided, water-based color paint is directly sprayed on a plastic base material, and a varnish is an oil-based varnish. After equipment improvement is completed, original oil-based paint can still beused in normal production.

Description

technical field [0001] This technology is suitable for the coating construction of car plastic exterior parts, such as bumpers, door sills, wheel covers, etc., especially car bumpers. Background technique [0002] Domestic and foreign automakers such as GM, Mercedes-Benz, BMW, Volkswagen, Brilliance, and Hyundai have different quality standards for the color exterior parts of cars. There are some differences in performance aspects such as moisture, stone impact, and appearance aspects such as color difference and gloss. In order to meet the quality standards of automobile factories, the coating production lines of domestic car exterior manufacturers all use the three-coat oil-based paint coating process to produce various colored bumpers. Oil-based paint refers to the paint with solvent as the main carrier, and some are Robotic spraying, some are manual spraying. Three-coating refers to the three-pass spraying of primer, basecoat and clearcoat on the formed plastic substra...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B05D1/36B05D3/00B05D7/24
Inventor 董鸣
Owner SHENYANG MINGHUA MOULD & PLASTIC TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap