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Method and apparatus for heating steel sheet
US10455648B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10455648-B2 |
| Application number | US-201214127735-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 25, 2012 |
| Priority date | Jul 28, 2011 |
| Publication date | Oct 22, 2019 |
| Grant date | Oct 22, 2019 |
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- Title
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Abstract
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The invention proposes a method for heating a steel sheet wherein the generation of buckling can be prevented regardless of presence or absence of rolls restraining the steel sheet by antecedently heating the widthwise central portion of the steel sheet with a solenoid type induction heating coil having a convex form projected onto the surface of the steel sheet toward an upstream side in rapidly heating the continuously traveling steel sheet, whereby an isotherm of the steel sheet in the heating is a convex form toward the upstream side, so that a large wrinkle is generated on the steel sheet, and also proposes a heating apparatus used in this method.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for heating a steel sheet, the method comprising: heating a continuously traveling steel sheet; generating wrinkle in a widthwise central portion of the steel sheet by pre-heating the steel sheet before heating the continuously traveling steel sheet; and spreading the wrinkle up to a widthwise edge portion of the sheet by thereafter enlarging a heating zone. 2. A method for heating a steel sheet according to claim 1 , wherein the steel sheet is pre-heated so that an isotherm in the heating is a convex form toward an upstream side. 3. A method for heating a steel sheet according to claim 2 , wherein the convex form is circular arc or V-shaped.
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Frequently asked questions
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- What does patent US10455648B2 cover?
- The invention proposes a method for heating a steel sheet wherein the generation of buckling can be prevented regardless of presence or absence of rolls restraining the steel sheet by antecedently heating the widthwise central portion of the steel sheet with a solenoid type induction heating coil having a convex form projected onto the surface of the steel sheet toward an upstream side in rapid…
- Who is the assignee on this patent?
- Hino Yoshimichi, Sugihara Hirokazu, Jfe Steel Corp
- What technology area does this patent fall under?
- Primary CPC classification C21D1/42. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Oct 22 2019 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). 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).