Abstract: A connector is configured to be connected to an inlet of an electric apparatus having a storage battery. The connector includes a main body portion, an insertion portion, a first arm, a first preloading member, a release member, a solenoid, and a slide member. The slide member includes a support piece configured to come into contact with a back surface of a first front portion and a connection piece connecting a plunger and the support piece. The connection piece includes a first connection piece provided on a side of the plunger and a second connection piece provided on a side of the support piece. The support piece and the first connection piece are provided with a shift in position in a left-and-right direction.

Abstract: A connector is configured to be connected to an inlet of an electric apparatus having a storage battery. The connector includes a main body portion, an insertion portion, a first arm, a first preloading member, a release member, a solenoid, and a slide member. The slide member includes a support piece configured to come into contact with a back surface of a first front portion and a connection piece connecting a plunger and the support piece. The connection piece includes a first connection piece provided on a side of the plunger and a second connection piece provided on a side of the support piece. The support piece and the first connection piece are provided with a shift in position in a left-and-right direction.

Abstract: A piston ring includes a first ring portion which is fitted onto an outer circumferential portion of a piston and which is capable of sliding relative to an inner wall surface of a cylinder, and a second ring portion which is fitted onto the outer circumferential portion of the piston, arranged side-by-side with the first ring portion in the axial direction, and which is capable of sliding relative to the inner wall surface of the cylinder. The second ring portion is fitted onto the outer circumferential portion of the piston in such a way as to be positioned on a side opposite to a compression chamber inside the cylinder, relative to the first ring portion, and has a greater hardness than the first ring portion has.

Abstract: A piston ring includes a first ring portion which is fitted onto an outer circumferential portion of a piston and which is capable of sliding relative to an inner wall surface of a cylinder, and a second ring portion which is fitted onto the outer circumferential portion of the piston, arranged side-by-side with the first ring portion in the axial direction, and which is capable of sliding relative to the inner wall surface of the cylinder. The second ring portion is fitted onto the outer circumferential portion of the piston in such a way as to be positioned on a side opposite to a compression chamber inside the cylinder, relative to the first ring portion, and has a greater hardness than the first ring portion has.

Abstract: A laminated hard coating comprising a layer A and a layer B, wherein the layer A and the layer B differ in composition and are laminated. Layer A contains (MaAlbCrcTad)(BxCyNz) and satisfies 0?a?0.35, 0.05?d?0.35, 0?x?0.15, 0?y?0.50, a+b+c+d=1, and x+y+z=1. M is at least one element selected from the group consisting of V, Nb, Mo, and W; a, b, c and d represent the atomic ratios of M, Al, Cr, and Ta, respectively; and x, y, and z represent the atomic ratios of B, C and N, respectively. The layer B comprises (Ti?Si?)(BxCyNz) and satisfies 0.05???0.35, 0?x?0.15, 0?y?0.50, ?+?=1, and x+y+z=1. ? and ? represent the atomic ratios of Ti and Si, respectively, and x, y, and z represent the atomic ratios of B, C, and N, respectively. One or more layers of each of these layers have been alternately laminated.

Abstract: A hard film to be formed on a substrate satisfying the composition represented by formula (1): TiaCrbAlcZrdLe(BxCyNz), wherein: L represented one or more elements of Si and Y; a, b, c, d, e, x, y, and z are atomic ratios of Ti, Cr, Al, Zr, L, B, C, and N, respectively; and the atomic ratios satisfy the following ranges: 0?a?0.30, 0.10?b ?0.30, 0.40?c?0.70, 0.03?d?0.20, 0?e?0.10, 0?x?0.15, 0?y?0.10, 0.80?z?1, a+b+c+d+e=1 and x+y+z=1.

Abstract: A hard coating 1 is a hard coating 1 to be formed on a base material 3. The hard coating 1 includes a first layer 11. A composition formula of the first layer 11 is Zr1-a-bHfaMgb(BxCyN1-x-y). In this composition formula, a, b, x, y are the respective atomic ratios of Hf, Mg, B, C, and relational expressions of 0?a?0.95, 0.05?b?0.30, 0<1-x-y are satisfied. A hard coating-covered member 10 comprises the base material 3 which is a blade edge portion of a cutting tool and the hard coating 1 which is formed on the base material 3.

Abstract: A hard coating to be disposed on or over a substrate surface is provided. The hard coating includes a nitride or carbonitride containing Al, Cr, and at least one element X. The element X has an atomic number higher than Cr and is a Group 4 element; a Group 5 element, or a Group 6 element. The hard coating has maximum X element concentration points repeatedly present in a vertical direction to the substrate surface and one or more minimum X element concentration points present between adjacent two maximum X element concentration points in the vertical direction. The hard coating has a chemical composition continuously varying in the vertical direction.

Abstract: A hard film formed on/above a substrate has a composition represented by the following formula (1): Cr1?aMga(BxCyN1?x?y) (1). In the formula (1), a is the atomic ratio of Mg, x is the atomic ratio of B, and y is the atomic ratio of C; and a, x, and y satisfy the following relationships: 0.05?a?0.30, 0?x?0.20, and 0?y?0.30.

Abstract: A method for manufacturing a cutting tool includes a rake face forming of forming a rake face in a substrate serving as a base of the cutting tool, a flank face forming of forming a flank face in the substrate serving as the base of the cutting tool, a rounded face forming of forming a rounded face between the rake face and the flank face, and an R-value calculating of calculating an R-value which is a value of a radius of the rounded face to be formed in the rounded face forming.

Abstract: A laminated hard coating comprising a layer A and a layer B, wherein the layer A and the layer B differ in composition and are laminated. Layer A contains (MaAlbCrcTad)(BxCyNz) and satisfies 0?a?0.35, 0.05?d?0.35, 0?x?0.15, 0?y?0.50, a+b+c+d=1, and x+y+z=1. M is at least one element selected from the group consisting of V, Nb, Mo, and W; a, b, c and d represent the atomic ratios of M, Al, Cr, and Ta, respectively; and x, y, and z represent the atomic ratios of B, C and N, respectively. The layer B comprises (Ti?Si?)(BxCyNz) and satisfies 0.05???0.35, 0?x?0.15, 0?y?0.50, ?+?=1, and x+y+z=1. ? and ? represent the atomic ratios of Ti and Si, respectively, and x, y, and z represent the atomic ratios of B, C, and N, respectively. One or more layers of each of these layers have been alternately laminated.

Abstract: A hard coating film that has formed therein an adhesion-reinforcing layer that comprises A layers that are composed of [Si(CN)] and B layers that are composed of [TiAl(CN)] or the like. The A layers and B layers are alternately layered upon a substrate upon a ground layer that comprises the B layer. For at least one pair of A layers that are adjacent with the B layer therebetween, the A layer that is farther from the ground layer is thicker than the A layer that is closer to the ground layer. The thickest A layer is 15 nm or more.

Abstract: The present invention relates to a hard coating film that is formed on a substrate, that is provided with a layer (A) of which the composition is [Ti(BCN)] and a layer (B) of which the composition is [TiAl(CN)], [AlCr(CN)], [TiCrAlSi(CN)], or [TiSi(CN)], and that is characterized in that: a foundation layer comprising the layer (B) is formed on the substrate; an adhesion-reinforcing layer in which the layer (A) and the layer (B) are stacked repeatedly in an alternating manner is formed on the foundation layer; the thickness of the layer (A) increases compared to the foundation layer (2) side as the thickness of the adhesion-reinforcing layer increases; and the maximum thickness of the layer (A) is 20-50 nm. The hard coating film is formed on the substrate surface of a jig tool or the like, has high coating film hardness, and exhibits excellent adhesion and wear resistance during cutting and the like.

Abstract: This duplex stainless steel material is composed of a ferrite phase and an austenite phase, and has a component composition that contains 0.100% by mass or less of C, 0.10-2.00% by mass of Si, 0.10-2.00% by mass of Mn, 0.050% by mass or less of P, 0.0100% by mass or less of S, 0.001-0.050% by mass of Al, 1.0-10.0% by mass of Ni, 22.0-28.0% by mass of Cr, 2.0-6.0% by mass of Mo and 0.20-0.50% by mass of N, while containing 0.01-0.50% by mass of Ta and/or 0.1-1.0% by mass of Ge, with the balance made up of Fe and unavoidable impurities.

Abstract: A first member 11 and a second member 12 connected to each other are provided. The first member 11 is electrically connected to an electrode. The second member 12 is bonded to a position of the first member 11 remote from the electrode and is constituted by a material of a kind different from that of the first member 11. An overlapped portion 13 is formed at the first member 11 and the second member 12 and the overlapped portion 13 is bonded by cold welding. By the cold welding, the overlapped portion 13 is formed with a plurality of pressure marks 14 in a recess shape. Each cold pressure welded mark 14 is formed with a deformation mark reducing a depth of the cold pressure welded mark of the recess shape before plastic working by plastically working the overlapped portion 13 in a thickness direction thereof.