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Precoated metal plate

A metal plate and pre-coating technology, which is applied in the direction of metal layered products, metal material coating process, coating, etc., can solve the problem of damage to optical discs, and achieve the effect of good bonding force, high peel strength, and excellent formability

Inactive Publication Date: 2009-03-11
KOBE STEEL LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the resin ball disclosed in Patent Document 2 is a relatively hard material called acrylic or fluororesin, it will inevitably damage the optical disc when it comes into contact with an optical disc or the like that has a plate to prevent the pre-coated aluminum alloy plate from being damaged. other superficial issues

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～12

[0101] As Examples 1 to 12, precoated metal sheets were produced according to the above-described production method. Each configuration of the precoated metal sheet is as follows.

[0102] (Metal plate)

[0103] The thickness is 0.5mm, and the 5052-H34 aluminum alloy plate specified by JIS is used.

[0104] (corrosion-resistant film)

[0105] Phosphate chromate film is formed on both sides of the aluminum alloy plate. The adhesion amount of the phosphoric acid chromate coating is 20 mg / m in terms of Cr 2 .

[0106] (resin film)

[0107] Coating the epoxy-based paint that makes the soft pellets and tetrafluoroethylene powder disperse the compressive strength when having the 10% deformation specified in the present invention on the outermost surface of the chromate phosphate film, at the sintering temperature (metal plate) The maximum maximum temperature) is sintered at 250°C to form a resin film (fluorine-based resin base layer). Here, as the soft pellets, urethane pelle...

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Abstract

This invention provides a precoated metal plate that can prevent the occurrence of defects in an optical disk, and, at the same time, can maintain high peel strength of an adherend to a resin film, and can realize easy adhesion of the adherend to the surface of the resin film. The precoated metal plate comprises a metal plate and a resin film provided on the surface of the metal plate. The resin film comprises an epoxy resin matrix layer and soft beads dispersed in the epoxy resin matrix layer. For the soft beads, the compressive strength at single bead 10% deformation by a microcompression test is not more than 10 MPa. The content of the soft beads is not less than 5% by mass and not more than 50% by mass based on the epoxy resin matrix layer, and the average particle diameter of the soft beads is not less than 1.1 times and not more than 5 times the average thickness of the epoxy resin matrix layer.

Description

technical field [0001] The present invention relates to a precoated metal sheet, which is suitable for exterior sheet materials and components such as home appliances and automotive vehicle parts, as well as building materials and roofing materials. Background technique [0002] Metal sheets (metal sheets) represented by steel sheets, aluminum sheets, or aluminum alloy sheets have both high strength and workability, and can be applied to home appliances, automotive parts, and building materials through various processing Various uses. Processed products of metal plates suitable for these uses are sometimes subjected to surface treatment for the purpose of improving appearance, corrosion resistance, and the like. At present, the mainstream of this surface treatment is the post-coat method of processing the metal plate into a predetermined shape and then performing surface treatment. However, recently, it is aimed at improving the factory environment, simplifying the processi...

Claims

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Application Information

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IPC IPC(8): B32B15/08B32B15/092C09D5/08C09D7/12C09D127/18C09D163/00C09D163/02C09D175/04C23C30/00
CPCC09D5/08C09D175/04B05D7/14C23C30/00C09D163/00B05D2401/32
Inventor 服部伸郎
Owner KOBE STEEL LTD
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