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Surface-treated steel sheet on which particulate tin is deposited and resin-coated steel sheet

A technology for surface treatment of steel plates and steel plates, applied to synthetic resin layered products, metal layered products, containers, etc., can solve the problems of hindering the adhesion of organic resin films, poor film adhesion, and difficulty in covering, and achieve excellent processing adhesion sexual effect

Active Publication Date: 2014-09-24
TOYO KOHAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is a tin oxide film on tinplate (impeding the adhesion to the organic resin film), and it is difficult to coat above the melting point of tin (232°C) (tin melts and becomes fluid, and adheres to the heating equipment). Therefore, the current situation is in It is difficult to coat above the melting point of tin, and the film adhesion after canning is not as good as TFS

Method used

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  • Surface-treated steel sheet on which particulate tin is deposited and resin-coated steel sheet
  • Surface-treated steel sheet on which particulate tin is deposited and resin-coated steel sheet
  • Surface-treated steel sheet on which particulate tin is deposited and resin-coated steel sheet

Examples

Experimental program
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Effect test

Embodiment

[0057] Next, the present invention will be specifically described using Examples 1 to 64 and Comparative Examples 1 to 23.

[0058] [Production of surface-treated steel sheets]

[0059] Using the low-carbon cold-rolled steel sheet shown in the column "Thickness" of Table 1, after performing electrolytic degreasing-water washing, sulfuric acid pickling-water washing in an alkaline aqueous solution, using a tin sulfate bath, tin plating conditions and Metallic tin particles were formed under the conditions shown in Tables 1 to 4, and samples were produced without tin melting treatment and with tin melting treatment. Next, the surface-treated steel sheet serving as the resin-laminated substrate was heated in three stages of 200°C, 220°C, and 250°C to laminate the resin layer on the granular metallic tin.

[0060]

[0061] Tin Sulfate Plating Bath Composition

[0062] Sulfuric acid concentration: 52g / L (20cc / L)

[0063] Tin sulfate concentration: 90g / L (50g / L as Sn)

[0064]...

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Abstract

A resin-coated steel sheet exhibiting excellent adhesiveness of the resin even during a tough molding process. Specifically disclosed is a surface-treated steel sheet in the surface of which tin metal is discontinuously dispersed in the form of particles and iron of the steel sheet surface is partially exposed. The surface-treated steel sheet is characterized in that the particulate metal tin dispersed in the steel sheet accounts for 5-95% of the area of the steel sheet surface, the amount of tin is 0.1-13 g / m 2 and the particulate metal tin has an average particle size of 0.5-50 µm. Also specifically disclosed is a resin-coated steel sheet which is characterized in that a resin layer is formed on the surface-treated steel sheet.

Description

technical field [0001] The present invention relates to a surface-treated steel sheet for a resin-coated steel sheet excellent in work adhesion, and a resin-coated steel sheet in which the surface-treated steel sheet is coated with a resin. Background technique [0002] In recent years, cans are manufactured in which the top plate is curled onto the can body, which is a steel sheet coated with resin, which is subjected to deep drawing and further drawing and deep drawing after the deep drawing. After processing, further reducing extrusion processing, further drawing processing after deep drawing, and reducing extrusion processing are strictly processed, and the can middle part and the bottom of the tank are integrally formed. In these can bodies, excellent adhesion of the resin to the steel sheet is required so that peeling or cracking of the coating resin does not occur during and after the severe forming process. Therefore, resin-coated chromate-treated steel sheets in wh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D5/26B32B15/08C25D5/50
CPCB32B2255/06B32B2255/205B32B2307/714B32B15/08C25D5/36B32B2439/66C25D5/505B32B7/12B32B27/306B32B27/308B32B27/32B32B27/34B32B27/36B32B27/365B32B2270/00B32B2307/412B32B2307/732
Inventor 松原政信
Owner TOYO KOHAN CO LTD
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