摘要:
{Problem} To provide an electrical contact material, in which diffusion of the material of the conductive substrate into the outermost layer is suppressed even in a high-temperature use environment, and in which the increase in contact resistance is suppressed. {Means} An electrical contact material (10) having: a conductive substrate (1) formed from copper or a copper alloy; a first intermediate layer (2) provided on the conductive substrate (1); a second intermediate layer (3) provided on the first intermediate layer (2); and an outermost layer (4) formed from tin or a tin alloy and provided on the second intermediate layer (3), wherein the first intermediate layer (2) is constructed as one layer of grains extending from the conductive substrate (1) side to the second intermediate layer (3) side, and wherein, in the first intermediate layer (2), the density of grain boundaries (5b) extending in a direction in which the angle formed with respect to the interface between the conductive substrate and the first intermediate layer is 45° or greater, is 4 µm/µm 2 or less; a method of producing the same; and a terminal.
摘要:
In a female crimp terminal 10 including a pressure-bonding section 30 for permitting pressure-bonding and connection to an aluminum core wire 201 of an insulated wire 200, the pressure-bonding section 30 is configured in a hollow sectional shape by a plate material, and a longitudinal direction weld portion W1 in a longitudinal direction X is welded, a forward part in the hollow sectional shape is caused to take an almost flat plate-shaped sealing shape and a width direction weld portion W2 in a width direction Y is welded.
摘要:
To provide an electric wire with terminal including a terminal having a one-end closed barrel portion and an electric wire including an aluminum alloy wire rod, in which the aluminum alloy wire rod has, while maintaining an elongation property and conductivity that are equivalent or greater than those of conventional products, both an appropriate proof stress and a high bending fatigue resistance, and in which moisture is less likely to enter inside the barrel portion, and also the terminal can be configured to have a compact structure in the longitudinal direction. An electric wire with terminal (1) of the present invention includes an electric wire (2) including an aluminum alloy wire rod (2a) coated on a periphery thereof, and a crimp terminal (3) crimped to an end portion of the electric wire. The aluminum alloy wire rod has a composition comprising an Al-Ma-Si based alloy, and the crimp terminal (3) has a barrel portion (3b) crimped with the aluminum alloy wire rod (2a) and the barrel portion (3b) is configured to have a one end closed tubular shape.
摘要:
To provide a terminal with reduced cracking during crimping and a springback after crimping and with reduced metal oxidation and galvanic corrosion. To provide a method of manufacturing such a terminal. Further, to provide a termination connection structure of a wire obtained by connecting the terminal and the wire. Provided is a terminal having a tubular crimp portion that crimp connects with an electric wire, the tubular crimp portion includes a metal member, the tubular crimp portion including a non-weld portion and a weld portion that is formed by welding, a metal base material constituting the metal member of the non-weld portion includes a normal portion and an annealed portion. Further, provided is a method of manufacturing such a terminal. Further, provided is a termination connection structure of the wire obtained by connecting the terminal and the wire.
摘要:
Has an obj ect of providing a connection structural body in which an electric wire and a crimp terminal formed of different metal materials are connected to each other, and which is produced at low cost and with a small number of production steps, prevents galvanic corrosion, and has a conducting function with certainty. In a connection structural body 1, an aluminum electric wire tip part 202a and a crimp terminal 10 are connected to each other. The aluminum electric wire tip part 202a is an exposed tip part of an insulated wire 200 including an aluminum core wire 202 and an insulating cover 201 for covering the aluminum core wire 202, and is exposed as a result of being stripped of the insulating cover 201. The crimp terminal 10 includes a wire barrel section 12 for pressure-bonding and thus connecting the aluminum electric wire tip part 202a and is formed of a metal material having a higher potential than that of the aluminum core wire 202. The aluminum electric wire tip part 202a is covered with a cover solder 203 or with the cover solder 203 and a cover resin 204. The aluminum electric wire tip part 202a is pressure-bonded and thus connected to the wire barrel section 12, such that the aluminum electric wire tip part 202a is, in a pressure-bonded state, covered with the cover 203 and/or the cover reins 204, with no gap, from an insulating cover tip part 201a of the insulating cover 201 to a rear end portion of the wire barrel section 12.