17768161. PLATED STEEL SHEET FOR HOT STAMPING AND HOT-STAMPED MEMBER simplified abstract (NIPPON STEEL CORPORATION)

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PLATED STEEL SHEET FOR HOT STAMPING AND HOT-STAMPED MEMBER

Organization Name

NIPPON STEEL CORPORATION

Inventor(s)

Yuki Suzuki of Tokyo (JP)

Soshi Fujita of Tokyo (JP)

Jun Maki of Tokyo (JP)

Kazuhisa Kusumi of Tokyo (JP)

Masahiro Fuda of Tokyo (JP)

PLATED STEEL SHEET FOR HOT STAMPING AND HOT-STAMPED MEMBER - A simplified explanation of the abstract

This abstract first appeared for US patent application 17768161 titled 'PLATED STEEL SHEET FOR HOT STAMPING AND HOT-STAMPED MEMBER

Simplified Explanation

The plated steel sheet for hot stamping described in the abstract has a steel sheet with a plating layer containing at least 60% Al and a surface film layer. The plating layer is 10 to 60 μm thick, with an average crystal grain diameter of 15.0 μm or less. The surface film layer contains particles of elements like Sc, V, Mn, Fe, Co, Ce, Nb, Mo, and W, with a total content of 0.01 to 10.0 g/m. The average grain diameter of these particles is 0.05 to 3.0 μm.

  • Steel sheet with plating layer containing 60% Al or more
  • Plating layer thickness of 10 to 60 μm
  • Surface film layer with particles of selected elements
  • Average grain diameter of particles in surface film layer is 0.05 to 3.0 μm

Potential Applications

The technology described in the patent application could be used in automotive manufacturing, aerospace industry, and construction for high-strength and corrosion-resistant components.

Problems Solved

This technology solves the problem of improving the strength and corrosion resistance of steel sheets used in hot stamping processes, leading to better performance and durability of the final products.

Benefits

The benefits of this technology include enhanced mechanical properties, increased resistance to corrosion, and improved overall performance of components manufactured using the plated steel sheet.

Potential Commercial Applications

The technology could find commercial applications in the automotive industry for producing lightweight yet strong components, in the aerospace sector for manufacturing parts with high strength-to-weight ratio, and in construction for corrosion-resistant structures.

Possible Prior Art

One possible prior art could be the use of aluminum-coated steel sheets in various industries for their corrosion resistance and lightweight properties. However, the specific combination of elements in the plating layer and surface film layer as described in this patent application may be novel.

Unanswered Questions

How does this technology compare to traditional steel plating methods in terms of cost-effectiveness and performance?

The article does not provide a direct comparison between this technology and traditional steel plating methods in terms of cost-effectiveness and performance. It would be interesting to see a detailed analysis of these aspects to understand the potential advantages of the innovation.

What are the environmental implications of using steel sheets with such plating layers and surface film layers?

The article does not address the environmental implications of using steel sheets with specific plating layers and surface film layers. It would be important to consider the environmental impact of the production process and disposal of such materials in future applications.


Original Abstract Submitted

A plated steel sheet for hot stamping according to one aspect of the present invention includes a steel sheet, a plating layer formed on either surface or both surfaces of the steel sheet and having an Al content of 60 mass % or more, and a surface film layer formed on the plating layer. A thickness t of the plating layer is 10 to 60 μm. An average crystal grain diameter of the plating layer in a thickness range from an interface between the plating layer and the surface film layer to a position at ⅔ of the thickness t is 2t/3 or less and 15.0 μm or less. A surface film layer contains particles containing one or more elements selected from A group elements consisting of Sc, V, Mn, Fe, Co, Ce, Nb, Mo, and W. A total content of the A group elements is 0.01 to 10.0 g/m. An average grain diameter of the particles containing the A group elements is 0.05 to 3.0 μm.