Method for coating zinc die-cast parts, multi-layered coating for the protection of zinc die-cast parts, and coated zinc die-cast part
US-2024254631-A1 · Aug 1, 2024 · US
Method of producing hot-stamped article
US2016298239A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016298239-A1 |
| Application number | US-201415100808-A |
| Country | US |
| Kind code | A1 |
| Filing date | Nov 27, 2014 |
| Priority date | Dec 2, 2013 |
| Publication date | Oct 13, 2016 |
| Grant date | — |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A method of producing a hot-stamped article includes: a forming process of heating a galvanized steel sheet ( 1 ) on which a galvanized layer ( 12 ) is formed and forming the heated galvanized steel sheet ( 1 ) by hot stamping; a removal process of irradiating, after the forming step, an oxide film ( 13 ) formed on a surface of the galvanized layer ( 12 ) with laser light to remove the oxide film ( 13 ); and a coating process of performing, after the removal process, a coating treatment on the galvanized steel sheet ( 1 ) formed by hot stamping.
First claim
Opening claim text (preview).
What is claimed is: 1 . A method of producing a hot-stamped article, comprising: a forming process of heating a galvanized steel sheet on which a galvanized layer is formed and forming the heated galvanized steel sheet by hot stamping; a removal process of irradiating, after the forming process, an oxide film formed on a surface of the galvanized layer with laser light to remove the oxide film; and a coating process of performing, after the removal process, a coating treatment on the galvanized steel sheet formed by hot stamping. 2 . The method according to claim 1 , wherein in the coating process, a phosphate chemical conversion treatment is performed on the surface of the galvanized layer from which the oxide film is removed, and a coating film is formed on the surface on which the phosphate chemical conversion treatment is performed.
Assignees
Inventors
Classifications
Zinc or cadmium or alloys based thereon · CPC title
- C23C22/78Primary
Pretreatment of the material to be coated · CPC title
by heat-treatment · CPC title
for sheet metals · CPC title
for surface treatment · CPC title
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Frequently asked questions
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- What does patent US2016298239A1 cover?
- A method of producing a hot-stamped article includes: a forming process of heating a galvanized steel sheet ( 1 ) on which a galvanized layer ( 12 ) is formed and forming the heated galvanized steel sheet ( 1 ) by hot stamping; a removal process of irradiating, after the forming step, an oxide film ( 13 ) formed on a surface of the galvanized layer ( 12 ) with laser light to remove the oxide fi…
- Who is the assignee on this patent?
- Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification C23C22/78. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Oct 13 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).