Steam generator for nuclear steam supply system
US-10395783-B2 · Aug 27, 2019 · US
Solid metallic component and method for producing same
US12103085B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12103085-B2 |
| Application number | US-202017778578-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 19, 2020 |
| Priority date | Nov 22, 2019 |
| Publication date | Oct 1, 2024 |
| Grant date | Oct 1, 2024 |
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- Title
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Abstract
Official abstract text for this publication.
The invention relates in particular to a solid metallic component. This component ( 1 ) is particularly notable in that it comprises a core ( 5 ) and an external shell ( 3 ) which surrounds said core ( 5 ) in all directions, this core ( 5 ) and this shell ( 3 ) being made of different grades of steel, the steel of said core ( 5 ) having martensite and bainite critical cooling rates lower than those of the steel or steels of said shell ( 3 ).
First claim
Opening claim text (preview).
The invention claimed is: 1. A solid metal component, which comprises a core and an outer shell which surrounds the core in all directions, the core and the shell being made of different grades of steels, the steel of the core exhibiting martensite and bainite critical cooling rates lower than the martensite and bainite critical cooling rates of the steel or steels of the shell. 2. The solid metal component according to claim 1 , wherein the core is itself surrounded by at least one inner shell, the inner shell being surrounded by the outer shell, the steel of the core exhibiting martensite and bainite critical cooling rates lower than the martensite and bainite critical cooling rates of the steel of the inner shell, the martensite and bainite critical cooling rates of the inner shell being themselves lower than the martensite and bainite critical cooling rates of the outer shell. 3. A method of manufacturing a solid metal component according to claim 1 , which comprises a step of depositing the different grades of steels by additive manufacturing or welding, on a base previously manufactured which constitutes a part of the outer shell, in order to form at the same time, the core and the remainder of the outer shell. 4. The method according to claim 3 , wherein the steel grade of the remainder of the outer shell is the same as that of the base. 5. The method according to claim 3 , wherein the steel grade of the remainder of the outer shell is different from the steel grade of the base, the two-steel grades of the remainder of the outer shell and the steel grade of the base exhibiting martensite and bainite critical cooling rates that are identical or almost identical. 6. The method according to claim 3 , wherein the base is made by forging or rolling. 7. The method according to claim 3 , wherein the base is made by additive manufacturing or welding. 8. A method of manufacturing a solid metal component according to claim 2 , which comprises a step of depositing the steel of the inner shells and the steel of the outer shell by additive manufacturing or welding, on a base previously manufactured which constitutes a part of the outer shell, in order to form at the same time, the core and the remainder of the inner shell and of the outer shell. 9. The method according to claim 8 , wherein the steel grade of the remainder of the outer shell is the same as that of the base. 10. The method according to claim 8 , wherein the steel grade of the remainder of the outer shell is different from the steel grade of the base, the two steel grades exhibiting martensite and bainite critical cooling rates that are identical or almost identical. 11. The method according to claim 8 , wherein the base is made by forging or rolling. 12. The method according to claim 8 , wherein the base is made by additive manufacturing or welding.
Assignees
Inventors
Classifications
Means for supporting the complete structure {(arrangements for supporting vessels and core-structures G21C13/024)} · CPC title
specially adapted for nuclear steam generators, e.g. maintenance, repairing or inspecting equipment not otherwise provided for · CPC title
with more than 1.5% by weight of manganese · CPC title
with molybdenum or tungsten · CPC title
containing silicon · CPC title
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- What does patent US12103085B2 cover?
- The invention relates in particular to a solid metallic component. This component ( 1 ) is particularly notable in that it comprises a core ( 5 ) and an external shell ( 3 ) which surrounds said core ( 5 ) in all directions, this core ( 5 ) and this shell ( 3 ) being made of different grades of steel, the steel of said core ( 5 ) having martensite and bainite critical cooling rates lower than t…
- Who is the assignee on this patent?
- Electricite De France
- What technology area does this patent fall under?
- Primary CPC classification B22F7/06. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Oct 01 2024 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 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).