摘要:
The invention provides a metallic material for electric /electronic component in which a CU-Sun alloy layer (2) is provided on a conductive base (1), wherein Cu concentration of the Cu-Sn alloy layer gradually decreases from the base side to the surface (3) side.
摘要:
A plated material 5, containing: on a conductive substrate 1, an underlayer 2 composed of nickel and the like; an intermediate layer 3 composed of Cu or a Cu alloy being provided thereon; and an outermost layer 4 composed of a Cu-Sn intermetallic compound being provided thereon; and an electric or electronic part using the same.
摘要:
A connector including a male terminal and a female terminal, at least the contact point part of at least one of the terminals having an outermost layer made of a metallic material which is a Cu-Sn alloy layer in which the copper concentration gradually decreases toward the surface. Also provided is a metallic material which is for use in this connector and includes an outermost layer constituted of a Cu-Sn alloy layer in which the copper concentration gradually decreases toward the surface.
摘要:
A crimp contact for an aluminum stranded wire having a serration 5 provided in an inner face 1 b of a crimping portion 1 of the crimp contact, wherein a ratio d/e is 0.33 or more, in which d represents a depth of a groove 4 constituting the serration 5 and e represents a diameter of an aluminum wire 7 constituting the aluminum stranded wire 6, and wherein the number of grooves 4 is 3 or more; and a cable end structure of an aluminum stranded wire to which the crimp contact for an aluminum stranded wire is crimped, wherein a ratio between a sectional area of the aluminum stranded wire 6 after the crimping and a sectional area thereof before the crimping, is from 0.7 to 0.95.
摘要:
A concentric stranded conductor having a concentric strand having multiple bunched strands twisted together, in which each bunched strand has multiple single wires twisted together; wherein the concentric stranded conductor has a central core bunched strand (5) and a first-layer concentric strand (11) having multiple first-layer bunched strands (9) twisted together around the central core bunched strand (5); wherein a twist pitch of the central core bunched strand (5) is from 8 to 70 times an outer strands distance thereof, a twist pitch of the first-layer concentric strand (11) is from 8 to 30 times an outer strands distance thereof, a difference between a twist angle of the central core bunched strand (5) and a sum of twist angles of the first-layer bunched strands (9) and first-layer concentric strand (11) is 15 degrees or less, and each single wire is made of an aluminum or aluminum alloy, having elongation of 2% or more.