Resin coated steel sheet with excellent flaw resistance

A technology for coating steel plates and resins, applied in synthetic resin layered products, coatings, metal material coating processes, etc., can solve the problems of high cost, poor defect resistance, complicated processes, etc., and achieve excellent defect resistance, The effect of reducing costs and reducing defective products

Inactive Publication Date: 2009-09-02
KOBE STEEL LTD
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the portion where the hard top coating is not formed has poor flaw resistance, and in order

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

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0011] In the resin-coated steel sheet of the present invention, the raw material sheet (the sheet before forming the resin film) must be a cold-rolled sheet or a hot-dip galvanized steel sheet (hereinafter, both are referred to as a raw material sheet). This is because they have high Vickers hardness, and the present inventors have discovered the influence of the hardness of the raw material plate on the flaw resistance. Since the galvanized layer of the hot dip galvanized steel sheet conventionally used is soft, even if a resin film is formed thereon as in the present invention, sufficient defect resistance cannot be obtained. In this way, considering the flaw resistance and the hardness of the original sheet, the technical idea of ​​adapting the Tg and film thickness of the resin film to the hardness of the original sheet is unique to the present invention. High standard of blemish resistance. In addition, the galvanized steel sheet of the present invention is a steel shee...

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
Thicknessaaaaaaaaaa
Glass transition temperatureaaaaaaaaaa
Login to view more

Abstract

The invention relates to a resin coated steel sheet with excellent flaw resistance; a resin coating with a thickness of 12 [mu]m or below is formed on the surface of cold-rolled steel sheets or alloying melted galvanized steel sheets, the vitrification temperature Tg of the coating being in the range of 10 DEG C below zero to 32 DEG C. According to the formation, flaws are prevented in each procedure of the production process, extrusion process, assembly process after processing, and transfer process. The invention is suitable for law resistance with strict standard.

Description

technical field [0001] The present invention relates to resin-coated steel sheets used in automobiles, home appliances, building materials, and the like. Resin-coated steel sheet that is hard to generate flaws in one process. Background technique [0002] Conventionally, there is known a method of forming a resin film on the surface of a metal plate in order to improve appearance and corrosion resistance. Resin films are required to have good workability, corrosion resistance, and flaw resistance, and various studies have been made to improve these properties. [0003] For example, JP-A-2007-168273 discloses a coated steel sheet having a glass transition temperature (hereinafter referred to as Tg) of 10 to 50°C containing a Tg of 70 to 120° C. The upper coating film of the resin particles at ℃. In addition, Japanese Patent Laid-Open No. 2001-9366 discloses a plated steel sheet that can withstand severe stresses such as drawing processing due to a one-layer coating film ma...

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): B32B15/09B32B15/18B32B27/18
CPCB05D7/14B05D7/24B05D2202/00C23C4/123
Inventor 渡濑岳史平野康雄
Owner KOBE STEEL 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