公开(公告)号：US11331882B2

公开(公告)日：2022-05-17

申请号：US16758265

申请日：2018-12-28

Applicant: NIPPON STEEL CORPORATION

Inventor： Masaharu Ibaragi ,  Noriyuki Negi ,  Masafumi Usui ,  Masako Nakai

IPC: B32B15/14 ,  B32B7/12 ,  B32B15/18 ,  B32B15/20 ,  B32B27/28 ,  B32B15/08 ,  B32B27/26

Abstract: [Problem]
To provide a metal/fiber-reinforced resin material composite in which a metal member and a fiber-reinforced resin material are firmly bonded, a light weight and excellent workability are obtained while the strength is enhanced, and the amount of the fiber-reinforced resin material used can be reduced.
[Solution]
A metal/fiber-reinforced resin material composite comprising a metal member, and a first fiber-reinforced resin material having a matrix resin and a reinforcement fiber material, the metal member and the first fiber-reinforced resin material being formed into a composite with an adhesive resin layer interposed therebetween, wherein the adhesive resin layer is obtained by solidifying or curing an adhesive resin composition containing at least 50 mass parts of a phenoxy resin (A), and the maximum load of the metal/fiber-reinforced resin material composite is greater than the total load of the maximum load of the metal member alone and the maximum load of the fiber-reinforced resin material alone (i.e., so as to display a “super-law-of-mixture (or law of over-mixture)” that surpasses the law of mixture with respect to the tensile load).

公开(公告)号：US12173128B2

公开(公告)日：2024-12-24

申请号：US17601230

申请日：2020-04-16

Applicant: NIPPON STEEL CORPORATION

Inventor： Masumi Koori ,  Kohei Ueda ,  Atsuo Koga ,  Masaharu Ibaragi ,  Noriyuki Negi ,  Masafumi Usui

IPC: C08J5/04 ,  B32B15/14 ,  B32B15/18 ,  B32B15/20 ,  C25D1/00 ,  B32B15/08 ,  B32B37/04

Abstract: The invention has as its object the provision of a metal-fiber reinforced plastic composite able to more reliably prevent occurrence of an electrolytic corrosion action when forming a composite of a metal member and a fiber reinforced plastic layer comprising reinforcing fiber (carbon fiber) and a matrix resin.
A metal-fiber reinforced plastic composite 1 according to the present invention comprises a metal member 10, an insulating layer 30 arranged on at least part of a surface of the metal member 10 and comprising a first matrix resin 31 containing nonconductive fiber 32, and a CFRP layer 40 arranged on at least part of a surface of the insulating layer 30 and comprising a second matrix resin 41 containing carbon fiber 42, wherein, when viewing the surface of the metal member 10 from vertically above, the CFRP layer 40 is positioned at the inside of a region where the insulating layer 30 is present and an outer edge of the CFRP layer 40 and an outer edge of the insulating layer 30 are 0.2 mm or more apart. Due to this, it is possible to prevent electrolytic corrosion of the metal member.

公开(公告)号：US10418601B2

公开(公告)日：2019-09-17

申请号：US15327227

申请日：2015-07-22

Applicant: NIPPON STEEL CORPORATION ,  NIPPON STEEL CHEMICAL & MATERIAL CO., LTD.

Inventor： Masaharu Ibaragi ,  Koichi Nose ,  Kiyokazu Ishizuka ,  Yasuto Goto ,  Shuji Nagasaki ,  Hiroto Unno

IPC: B32B15/18 ,  H01M2/02 ,  B32B15/01 ,  C23C10/28 ,  C23C28/00 ,  H01G11/78 ,  C25D3/12 ,  C25D5/48 ,  C25D5/50 ,  H01G9/00 ,  H01G9/08 ,  C25D7/06

Abstract: A steel foil for a power storage device container includes a rolled steel foil which has a thickness of 200 μm or less, a diffusion alloy layer which is formed on a surface layer of the rolled steel foil and contains Ni and Fe, and a chromium-based surface treatment layer which is formed on the diffusion alloy layer. The polar density in a reverse pole figure of the diffusion alloy layer in a rolling direction is 2.0 to 6.0, and the aspect ratio of crystal in a surface of the diffusion alloy layer is 1.0 to 5.0.

公开(公告)号：US11969969B2

公开(公告)日：2024-04-30

申请号：US17599914

申请日：2019-04-02

Applicant: NIPPON STEEL CORPORATION

Inventor： Kohei Ueda ,  Yasuaki Kawamura ,  Masumi Koori ,  Masaharu Ibaragi

IPC: B32B15/14 ,  B32B15/08 ,  C08J5/12 ,  C08J5/24 ,  C23C2/26

CPC classification number: B32B15/14 ,  B32B15/08 ,  C08J5/121 ,  C08J5/243 ,  C08J5/249 ,  C23C2/26 ,  B32B2255/06 ,  B32B2255/26 ,  B32B2260/021 ,  B32B2260/046 ,  B32B2262/106 ,  B32B2264/102 ,  B32B2307/202 ,  C08J2371/10

Abstract: What is provided is a new and improved metal-carbon fiber reinforced resin material composite in which the galvanic corrosion of dissimilar materials of a metal member is suppressed and electrodeposition coatability is excellent and a method for manufacturing the metal-carbon fiber reinforced resin material composite. A metal-carbon fiber reinforced resin material composite according to the present invention has a metal member, a resin coating layer disposed on at least a part of a surface of the metal member, and a carbon fiber reinforced resin material containing a matrix resin and a carbon fiber material present in the matrix resin, the resin coating layer contains any one or more kinds selected from the group consisting of metal particles, intermetallic compound particles, conductive oxide particles, and conductive non-oxide ceramic particles as conductive particles and further contains a binder resin, and the conductive particles have a powder resistivity at 23° C. to 27° C. of 7.0×107 Ω·cm or less and contain one or more selected from the group consisting of Zn, Si, Zr, V, Cr, Mo, Mn, and W.

公开(公告)号：US11964699B2

公开(公告)日：2024-04-23

申请号：US17616013

申请日：2020-10-02

Applicant: NIPPON STEEL CORPORATION

Inventor： Masaharu Ibaragi ,  Noriyuki Negi

IPC: B62D29/00 ,  B29C70/68 ,  B29C70/88 ,  B29K307/04 ,  B29K705/12 ,  B29L31/30

CPC classification number: B62D29/002 ,  B29C70/685 ,  B29C70/88 ,  B29K2307/04 ,  B29K2705/12 ,  B29K2995/0098 ,  B29L2031/3002

Abstract: In a metal-fiber reinforced plastic (FRP) composite, the FRP and the metal member are bonded together, so internal stress (thermal stress) is generated due to the misfit of coefficients of thermal expansion of the metal member and the FRP. Not only does the binder layer peel off and the mechanical properties of the FRP cannot be obtained, but also defects in appearance (surface strain) occur. Therefore, the technical problem is to secure the mechanical properties as a composite while easing the internal stress and keeping surface strain from being generated.
The metal-fiber reinforced plastic (FRP) composite according to the present invention solves the technical problem by sandwiching an FRP between two metal members and not having at least one of the metal members joined (bonded) with the FRP. Further, it is possible to arrange an intermediate member between the other metal member and the FRP and sandwich the FRP between the two metal members through the intermediate member.

公开(公告)号：US11623432B2

公开(公告)日：2023-04-11

申请号：US16756401

申请日：2018-12-28

Applicant: NIPPON STEEL CORPORATION

Inventor： Masaharu Ibaragi ,  Noriyuki Negi ,  Masafumi Usui ,  Masako Nakai

IPC: B32B15/08 ,  B32B15/01 ,  B32B15/18 ,  B32B15/20 ,  B32B27/28 ,  C08J5/04 ,  C08J5/24 ,  C23C2/12

Abstract: [Problem]
A metal-fiber reinforced resin material composite is provided which improves the shear strength between a metallic member and a fiber reinforced material by more strongly bonding the metallic member and the fiber reinforced resin member, and which is very light and has excellent workability while increasing strength.
[Solution]
This metal-fiber reinforced resin material composite is provided with a metallic member and with a fiber reinforced resin material that is stacked on at least one surface of the metallic member and combined with the metallic member, wherein the fiber reinforced resin material comprises a matrix resin containing a thermoplastic resin, a reinforcing fiber material included in the matrix resin, and a resin layer interposed between the reinforcing fiber material and the metallic member and comprising a resin of the same type as the matrix resin. The shear strength of the metallic member and the fiber reinforced resin material is greater than or equal to 0.8 MPa.

公开(公告)号：US12233623B2

公开(公告)日：2025-02-25

申请号：US16976696

申请日：2019-02-27

Applicant: NIPPON STEEL CORPORATION

Inventor： Masaharu Ibaragi ,  Noriyuki Negi ,  Masafumi Usui ,  Masako Nakai

IPC: B32B15/08 ,  B32B7/022 ,  B32B7/12 ,  B32B15/14 ,  C08L71/10

Abstract: A metal-fiber reinforced resin material composite body is provided with: a metal member; a fiber-reinforced resin material which is superposed on at least one surface of the metal member so as to be complexed with the metal member; and a bonding resin layer which is interposed between the metal member and the fiber-reinforced resin material. The fiber-reinforced resin material includes a matrix resin that contains 50 parts by mass or more of a phenoxy resin in 100 parts by mass of the resin component and a reinforcing fiber material that is contained in the matrix resin; the concentration of the phenoxy resin in the resin component of the bonding resin layer is lower than the concentration of the phenoxy resin in the resin component of the matrix resin; and the shear strength between the metal member and the fiber-reinforced resin material is 0.8 MPa or more.

公开(公告)号：US12005676B2

公开(公告)日：2024-06-11

申请号：US16965944

申请日：2019-04-02

Applicant: NIPPON STEEL CORPORATION

Inventor： Masafumi Usui ,  Masaharu Ibaragi ,  Noriyuki Negi

IPC: B32B15/14 ,  B29C43/20 ,  B29C70/42 ,  B29C70/68 ,  B29C70/78 ,  B29C70/88 ,  B29K105/08 ,  B29K307/04 ,  B29K705/00 ,  B32B5/02 ,  B32B15/18 ,  B32B15/20 ,  B32B37/06 ,  B32B37/10 ,  B32B37/18

CPC classification number: B32B15/14 ,  B29C43/203 ,  B29C70/42 ,  B29C70/683 ,  B29C70/78 ,  B29C70/88 ,  B32B5/02 ,  B32B5/022 ,  B32B15/18 ,  B32B15/20 ,  B32B37/06 ,  B32B37/10 ,  B32B37/182 ,  B29K2105/0872 ,  B29K2307/04 ,  B29K2705/00 ,  B29K2995/0013 ,  B32B2255/06 ,  B32B2255/205 ,  B32B2255/26 ,  B32B2255/28 ,  B32B2260/021 ,  B32B2260/046 ,  B32B2262/106 ,  B32B2264/107 ,  B32B2264/303 ,  B32B2305/076 ,  B32B2305/10 ,  B32B2305/28 ,  B32B2305/30 ,  B32B2307/302 ,  B32B2309/02 ,  B32B2309/04 ,  B32B2309/125 ,  B32B2311/20 ,  B32B2311/24 ,  B32B2311/30 ,  B32B2313/04 ,  B32B2315/02 ,  B32B2323/10 ,  B32B2363/00 ,  B32B2457/10 ,  B32B2605/08

Abstract: A composite of metal and carbon-fiber-reinforced plastic according to the present invention comprising a predetermined metal member, a resin layer positioned at a surface of at least part of the metal member and containing an inorganic filler having a thermal conductivity of 20 W/(m·K) or more, and carbon fiber reinforced plastic positioned on the resin layer and containing a predetermined matrix resin and carbon reinforcing fiber present in the matrix resin, the carbon reinforcing fiber being at least one of pitch-based carbon reinforcing fiber having a thermal conductivity of 180 to 900 W/(m·K) in range or PAN-based carbon reinforcing fiber having a thermal conductivity of 100 to 200 W/(m·K) in range, a content of the inorganic filler in the resin layer being 10 to 45 vol % in range with respect to a total volume of the resin layer, a number density of the inorganic filler present in a region of a width X μm from an interface of the resin layer and the carbon fiber reinforced plastic in a direction of the resin layer being 300/mm2 or more, where X μm is an average particle size of the inorganic filler.