Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Pretreatment process suitable for high-aluminum hybrid car body of original equipment manufacturer

A technology of high-alumina and body, which is applied in the field of pre-treatment process of high-aluminum mixed body, to achieve the effect of dense and complete film weight, uniform and dense film formation, and easy filtration and removal

Active Publication Date: 2019-02-05
SHENYANG PARKERIZING
View PDF15 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Aiming at the problems caused by the increase in the proportion of aluminum materials in the traditional process, the present invention provides a pretreatment process suitable for high-aluminum mixed car bodies (the proportion of aluminum plates is between 30% and 80%)

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
  • Pretreatment process suitable for high-aluminum hybrid car body of original equipment manufacturer
  • Pretreatment process suitable for high-aluminum hybrid car body of original equipment manufacturer
  • Pretreatment process suitable for high-aluminum hybrid car body of original equipment manufacturer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Example 1 A pre-treatment process suitable for high-aluminum hybrid car bodies of OEMs

[0047] In this example, the aluminum plate of the high-aluminum hybrid body of the OEM is used as a model, and the pretreatment process experiment is carried out.

[0048] (1) The pretreatment process includes the following steps:

[0049] 1) Hot water wash

[0050] Spray the aluminum plate with hot water at 42-48°C for 90-100s.

[0051] 2) Pre-degreasing

[0052] The aluminum plate washed with hot water is sprayed with a degreasing agent at 42-48°C for 60-70s;

[0053] 3) Degreasing treatment

[0054] The pre-degreased aluminum plate is immersed in a degreasing agent at 42 to 48° C. for degreasing treatment for 60 to 70 s.

[0055] The degreaser is made by mixing A and B in a weight ratio of 2:1.

[0056] Agent A, by weight percentage, is composed of 12% sodium metasilicate, 21% potassium carbonate, 10% sodium hydroxide, 3% EDTA-4Na, 5% acrylic acid homopolymer, and the balance...

Embodiment 2

[0085] Example 2 A pre-treatment process suitable for high-aluminum hybrid car bodies of OEMs

[0086] In this embodiment, the high-aluminum hybrid body of the OEM is composed of galvanized sheet, cold-rolled sheet and aluminum sheet, wherein the proportion of aluminum sheet (the percentage of area occupied by the aluminum sheet) is 40%.

[0087] (1) The pretreatment process includes the following steps:

[0088] 1) Hot water wash

[0089] Spray the high-aluminum hybrid body with hot water at 42-48°C for 90-100s.

[0090] 2) Pre-degreasing

[0091] Spray the high-aluminum hybrid body after hot water washing with a degreasing agent at 42-48°C for 60-70s;

[0092] 3) Degreasing treatment

[0093] The pre-degreased high-alumina hybrid body is subjected to degreasing treatment of spraying before entering the tank, dipping into the tank and spraying after the tank is discharged. That is, spray with a degreaser at 42-48°C for 10-15s before entering the tank, immerse it in a deg...

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

PropertyMeasurementUnit
Shock proofaaaaaaaaaa
Login to View More

Abstract

The invention discloses a pretreatment process suitable for a high-aluminum hybrid car body of an original equipment manufacturer. The pretreatment process comprises the following steps: sequentiallyperforming hot-water washing, pre-degreasing, degreasing, washing, surface conditioning, phosphating, first-time pure-water washing, second-time pure-water washing, passivation and third-time pure-water washing on the high-aluminum hybrid car body. A uniform and dense phosphating hybridization passivation film layer is formed on the surface of an auto body sheet treated by the process. In comparison with traditional phosphating, film forming on the surface of an aluminium base material can be more uniform and dense. Since an aluminium ion removal agent in the formula can effectively control the concentration of aluminium ions in a bath solution, the pretreatment process is suitable for occasions where the content of an aluminium material in the car body is high.

Description

technical field [0001] The invention belongs to the technical field of metal surface treatment, and in particular relates to a pretreatment process of a high-aluminum hybrid vehicle body (galvanized sheet, cold-rolled sheet, and aluminum sheet). Background technique [0002] With the continuous development of the automobile industry, an industry consensus has been formed on the lightweight of body materials, and the China Association of Automobile Manufacturers has also formulated a development policy for the lightweight of automobile bodies in the future. [0003] Traditional automotive body materials use a large number of cold-rolled sheets, hot-rolled sheets and galvanized sheets, and aluminum sheets have almost no or a small proportion (below 5%). The ratio will gradually increase (30% to 80%), and even some high-end cars use all-aluminum body design. Correspondingly, in the pre-treatment process of car body painting, it is necessary to make corresponding adjustments to...

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): B05D3/10C23C22/36C23C22/44C23G1/18
CPCB05D3/102C23C22/368C23C22/44C23G1/18
Inventor 彭杨周宪民褚旭王志强何源
Owner SHENYANG PARKERIZING
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com