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Laminated steel plate

A steel plate and core layer technology, applied in the direction of coating, layered products, metal layered products, etc., can solve the problems of light weight, high rigidity, impact resistance, processability, shape stability, etc., and achieve rigidity and durability high impact effect

Active Publication Date: 2012-05-23
NIPPON STEEL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, none of the laminated steel sheets proposed so far have achieved the combination of light weight, high rigidity, high impact resistance, and excellent workability (shear workability, bending workability, deep drawing workability, bulging workability, etc.) ), excellent shape stability after processing, etc.

Method used

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Examples

Experimental program
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Effect test

no. 1 Embodiment approach

[0067] [Constitution of laminated steel plates]

[0068] First, refer to figure 1 , the overall configuration of the laminated steel sheet according to the first embodiment of the present invention will be described. figure 1 It is a sectional view showing an example of the overall configuration of the laminated steel sheet 1 of the present embodiment.

[0069] Such as figure 1 As shown, the laminated steel sheet 1 of the present embodiment has a structure in which steel sheets (hereinafter referred to as "surface layer steel sheets") 5 ( 5A, 5B) are respectively laminated on both surfaces of a core layer 10 . That is, the laminated steel sheet 1 has a structure in which the core layer 10 is laminated on the surface layer steel sheet 5A, and the surface layer steel sheet 5B is further laminated thereon. The core layer 10 is a layer composed of one or two or more netted wire groups 11 and one or two or more resin sheets 13 formed of a resin base material in a sheet shape. W...

no. 2 Embodiment approach

[0163] Next, refer to Figure 6 The overall configuration of the laminated steel sheet according to the second embodiment of the present invention will be described. Figure 6 It is a cross-sectional view showing an example of the overall configuration of the laminated steel sheet 2 of the present embodiment.

[0164] Such as Figure 6 As shown, the laminated steel sheet 2 of the present embodiment has a structure in which surface layer steel sheets 5 ( 5A, 5B) are respectively laminated on both surfaces of a core layer 10 , like the laminated steel sheet 1 of the first embodiment. That is, the laminated steel sheet 2 has a structure in which the core layer 10 is laminated on the surface layer steel sheet 5A, and the surface layer steel sheet 5B is further laminated thereon. As in the first embodiment, the core layer 10 is composed of one or more meshed wire group 11 formed of a mesh using wires and one or more resin sheets formed of a resin base material in a sheet shape. ...

no. 3 Embodiment approach

[0170] Next, refer to Figure 7 The overall configuration of the laminated steel sheet according to the third embodiment of the present invention will be described. Figure 7 It is a sectional view showing an example of the overall structure of the laminated steel plate 3 of this embodiment.

[0171] Such as Figure 7 As shown, the laminated steel sheet 3 of this embodiment has a structure in which surface layer steel sheets 5 ( 5A, 5B) are respectively laminated on both surfaces of a core layer 10 , like the laminated steel sheet 1 of the first embodiment. That is, the laminated steel sheet 3 has a structure in which the core layer 10 is laminated on the surface layer steel sheet 5A, and the surface layer steel sheet 5B is further laminated thereon. As in the first embodiment, the core layer 10 is composed of one or more meshed wire group 11 formed of a mesh using wires and one or more resin sheets formed of a resin base material in a sheet shape. A layer composed of mater...

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Abstract

A laminated steel plate formed by jointing steel plates on opposite sides of a core layer, wherein the core layer is composed of a resin sheet and a meshed wire group obtained by forming wires into a mesh, the wire forming the meshed wire group has a tensile strength of 601 MPa or more, and the opening of the meshed wire group is equal to or less than ten times the thickness of the steel plate. By defining the tensile strength of the wire as above, a light weight property can be obtained compatible with a high stiffness and impact resistance, and by defining the opening of the meshed wire group as above, workability and shape stability after the processing can be increased.

Description

technical field [0001] The present invention relates to a laminated steel sheet in which steel sheets are laminated on both surfaces of a core layer for weight reduction. This application claims priority based on Japanese Patent Application No. 2009-179851 for which it applied in Japan on July 31, 2009, and uses the content here. Background technique [0002] Lightweight, high rigidity and impact resistance, and processability or processing such as shearing, bending, deep drawing, and bulging are widely sought in various applications such as automotive parts, home appliance casings, furniture, and OA equipment parts. A steel plate with excellent shape stability. In recent years, as a countermeasure against global warming, CO 2 emissions. Especially in the application of automobile parts, in order to reduce CO 2 Not only light weight is required, but also a high level of performance is particularly required for rigidity, impact resistance, processability, and shape stabil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B3/24B32B15/04
CPCB32B2260/021B32B15/08B32B15/02B32B15/046B32B15/043B32B2266/02B32B15/011B32B15/18B32B5/28B32B2255/02B32B2255/06B32B15/06Y10T428/24033Y10T428/24107Y10T442/10B32B3/10B32B5/18B32B15/04B32B2266/0214B32B2266/0228B32B2266/0235B32B2266/0242B32B2266/025B32B2266/0257B32B2266/0264B32B2266/0271B32B2266/0285B32B2266/0292B32B2266/104
Inventor 大石浩古贺敦雄谷口裕一大桥浩
Owner NIPPON STEEL CORP
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