An anti-corrosive material includes an ultraviolet curable resin including, as a main component, a polymerizable compound including at least one of a photopolymerizable (meth)acrylate monomer or a photopolymerizable (meth)acrylate oligomer, and an anti-rust agent. The polymerizable compound includes a combination of a monofunctional (meth)acrylate monomer and a bifunctional (meth)acrylate monomer, or a combination of at least one of a monofunctional (meth)acrylate monomer or a bifunctional (meth)acrylate monomer and at least one of a trifunctional (meth)acrylate monomer or a polyfunctional (meth)acrylate monomer having four or more functional groups. The anti-corrosive material has a viscosity of 18,900 mPa.Math.s or less.

An anti-corrosive material includes an ultraviolet curable resin including, as a main component, a polymerizable compound including at least one of a photopolymerizable (meth)acrylate monomer or a photopolymerizable (meth)acrylate oligomer, and an anti-rust agent. The polymerizable compound includes a combination of a monofunctional (meth)acrylate monomer and a bifunctional (meth)acrylate monomer, or a combination of at least one of a monofunctional (meth)acrylate monomer or a bifunctional (meth)acrylate monomer and at least one of a trifunctional (meth)acrylate monomer or a polyfunctional (meth)acrylate monomer having four or more functional groups. The anti-corrosive material has a viscosity of 18,900 mPa.Math.s or less.

A terminal-equipped electric wire, a connector including the terminal-equipped electric wire and a manufacturing method of the connector are provided. The terminal-equipped electric wire includes an electric wire including a conductor core wire formed of a conductor material and a terminal formed of a composite metal material in which a plurality of types of metal materials are clad-bonded with each other. The terminal includes a first connection portion and a second connection portion, each of which is formed of a metal material of respective one of the plurality of types of metal materials. The conductor core wire is electrically connected to one of the first and second connection portions, the one corresponding to the conductor material forming the conductor core wire.

A method of manufacturing a terminal-attached electric wire includes: installing an electric wire including a core wire including a plurality of element wires to a terminal having a conductor coupling part having a pair of barrel pieces, the core wire being installed between the pair of barrel pieces; bending the pair of barrel pieces to cause the pair of barrel pieces to wrap around and cover the core wire in a circumferential direction to form a slit extending in an axial direction between the pair of barrel pieces, with respect to the circumferential direction; melting the element wires of the core wire by emitting laser light toward the core wire through the slit; and adhering the element wires melted with the laser light to the conductor coupling part.

A method of manufacturing a terminal-attached electric wire includes: installing an electric wire including a core wire including a plurality of element wires to a terminal having a conductor coupling part having a pair of barrel pieces, the core wire being installed between the pair of barrel pieces; bending the pair of barrel pieces to cause the pair of barrel pieces to wrap around and cover the core wire in a circumferential direction to form a slit extending in an axial direction between the pair of barrel pieces, with respect to the circumferential direction; melting the element wires of the core wire by emitting laser light toward the core wire through the slit; and adhering the element wires melted with the laser light to the conductor coupling part.

An electric wire with a terminal includes: an electric wire having a core wire, and a cover; a crimp terminal having a core wire crimping portion which is crimped to the core wire, a cover crimping portion which is crimped to the cover, and a connecting portion which extends from the core crimping portion to the cover crimping portion; and a resin which integrally covers the core wire and the crimp terminal. The core wire has an intermediate portion which extends between the core crimping portion and the cover crimping portion. The connecting portion has a bottom wall portion and a pair of side wall portions which extend in a height direction of the crimp terminal from end portions of the bottom wall portion in a width direction.

In a connection structure of the present disclosure, compression of a first connecting part of a first conductor forming a connecting component causes the first connecting part to be directly coupled to a second connecting part of a second conductor forming a body to be connected, to form an electrical connection structure, wherein the first conductor is made of copper or a copper alloy; and the second conductor has a Vickers hardness HV1 of 110 or more as measured at a position of the second connecting part in a state where the electrical connection structure is formed, and a Vickers hardness HV2 of 80% or more of the Vickers hardness HV1, the Vickers hardness HV2 being measured at a position of the second conductor which does not form the electrical connection structure.

In a connection structure of the present disclosure, compression of a first connecting part of a first conductor forming a connecting component causes the first connecting part to be directly coupled to a second connecting part of a second conductor forming a body to be connected, to form an electrical connection structure, wherein the first conductor is made of copper or a copper alloy; and the second conductor has a Vickers hardness HV1 of 110 or more as measured at a position of the second connecting part in a state where the electrical connection structure is formed, and a Vickers hardness HV2 of 80% or more of the Vickers hardness HV1, the Vickers hardness HV2 being measured at a position of the second conductor which does not form the electrical connection structure.

An electric wire with terminal includes: an electric wire having a conductor part covered by an insulation sheath part; a crimp terminal including a conductor crimp part crimped to the conductor part, a sheath crimp part crimped to the insulation sheath part, and an intermediate part from which the conductor part is exposed, the intermediate part connecting the conductor crimp part and the sheath crimp part; and an anticorrosive material that covers the conductor part exposed from the crimp terminal. A terminal of the insulation sheath part on the conductor crimp part side is exposed toward the intermediate part side from the sheath crimp part. The crimp terminal includes a sheath cover wall part that covers an edge of the terminal of the insulation sheath part on a top view.

An electric wire with terminal includes: an electric wire having a conductor part covered by an insulation sheath part; a crimp terminal including a conductor crimp part crimped to the conductor part, a sheath crimp part crimped to the insulation sheath part, and an intermediate part from which the conductor part is exposed, the intermediate part connecting the conductor crimp part and the sheath crimp part; and an anticorrosive material that covers the conductor part exposed from the crimp terminal. A terminal of the insulation sheath part on the conductor crimp part side is exposed toward the intermediate part side from the sheath crimp part. The crimp terminal includes a sheath cover wall part that covers an edge of the terminal of the insulation sheath part on a top view.