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Method for producing surface-treated steel sheet, surface-treated steel sheet, and organic resin coated metal container
US2016265134A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016265134-A1 |
| Application number | US-201415032956-A |
| Country | US |
| Kind code | A1 |
| Filing date | Aug 20, 2014 |
| Priority date | Oct 31, 2013 |
| Publication date | Sep 15, 2016 |
| Grant date | — |
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Abstract
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Provided is a method for producing a surface-treated steel sheet including the step of forming a layer mainly composed of an oxygen compound containing Al onto a tin-plated steel sheet by conducting cathode electrolytic treatment to the tin-plated steel sheet using an electrolytic treatment solution containing Al ions and nitrate ions. For the electrolytic treatment solution, an electrolytic treatment solution not containing F ions and where the amount of nitrate ions contained is 11,500 to 25,000 ppm by weight is used.
First claim
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1 . A method for producing a surface-treated steel sheet comprising: forming a layer mainly composed of an oxygen compound containing Al onto a tin-plated steel sheet by conducting cathode electrolytic treatment using an electrolytic treatment solution containing an Al ion and nitrate ion to the tin-plated steel sheet, wherein the electrolytic treatment solution does not contain F ion and where an amount of a nitrate ion contained is 11,500 to 25,000 ppm by weight. 2 . The method for producing a surface-treated steel sheet according to claim 1 , wherein when forming efficiency of the layer mainly composed of an oxygen compound containing Al is considered to be a value (mg/C) obtained by dividing an amount of Al in the layer by an amount of electricity in cathode electrolytic treatment, the value is 0.011 or more. 3 . The method for producing a surface-treated steel sheet according to claim 1 , wherein electric conductivity of the electrolytic treatment solution is 16 to 35 mS/cm. 4 . The method for producing a surface-treated steel sheet according to claim 1 , wherein a pH of an electrolytic treatment solution is 2.0 to 4.0. 5 . A surface-treated steel sheet obtained by the method according to claim 1 . 6 . An organic resin coated metal container obtained by using the surface-treated steel sheet according to claim 5 .
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- What does patent US2016265134A1 cover?
- Provided is a method for producing a surface-treated steel sheet including the step of forming a layer mainly composed of an oxygen compound containing Al onto a tin-plated steel sheet by conducting cathode electrolytic treatment to the tin-plated steel sheet using an electrolytic treatment solution containing Al ions and nitrate ions. For the electrolytic treatment solution, an electrolytic tr…
- Who is the assignee on this patent?
- Toyo Kohan Co Ltd, Nippon Paint Co Ltd, Toyo Seikan Kaisha Ltd
- What technology area does this patent fall under?
- Primary CPC classification C25D9/08. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Sep 15 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).