摘要:
In a valve unit 10 for a water mixing valve comprising a stationary disk 11 provided with a hot water inlet, a cold water inlet, and a mixed water discharge outlet, and a rotary disk 12 slidably overlapping the stationary disk, and provided with a mixing chamber, a face 11s, 12s of at least one of the stationary disk 11 and the rotary disk 12, slidable relative to the other, is provided with a hard carbon film 15 with a first intermediate layer 13a made of titanium or chromium and a second intermediate layer 13b made of silicon or silicon carbide being interposed in-between. With the valve unit constituted as above, the hard carbon film having high adhesion strength is formed on the slidable face 11s/12s of the stationary disk 11 or the rotary disk 12, or on both the slidable faces, substantially enhancing resistance-to-wear of the valve unit.
摘要:
A decorative part and a process for producing the decorative part. A first nitride layer containing at least one metal selected among hafnium, titanium, and zirconium is formed on the surface of a decorative part comprising a soft base made of a material selected among stainless steel, titanium and titanium alloys, brass, etc., and a second nitride layer containing at least one metal which is selected among hafnium, titanium, and zirconium and is different from that in the first nitride layer is formed on the first nitride layer to thereby form a primer layer. A multilayered hardened layer including a gold alloy layer is further formed as a finish layer on the primer layer.
摘要:
A personal ornament having an ornament base article made of a metal or the like; an underlayer, preferably nickel-free, formed on the base article; and a coloring layer constituted of an abrasion-resistant layer of 0.2-1.5 μm thick formed by dry-plating on the surface of the underlayer and an outermost layer of 0.002-0.1 μm thick formed by dry-plating on the surface of the abrasion-resistant layer. The coloring layer is a white hard coating film of a stainless-steel color which provides superior quality, high resistance to deterioration of appearance by scratching, and a high-quality image like a stainless steel film.
摘要:
A golden ornament includes a base material; a Ti coating film which is formed on a surface of the base material in an atmosphere of an inert gas other than nitrogen and whose Ti atom content is constant in the thickness direction; a TiN gradient coating film which is formed on the Ti coating film and whose N atom content has a gradient in the thickness direction; a TiN coating film which is formed on the TiN gradient coating film and whose contents of Ti atoms and N atoms are constant in the thickness direction; an Au—TiN mixture gradient coating film which is formed on the TiN coating film and whose Au atom content has a gradient in the thickness direction; and an Au—TiN mixture coating film which is formed on the Au—TiN mixture gradient coating film and whose contents of Au atoms, Ti atoms, and N atoms are constant in the thickness direction. The golden ornament may further include an Au coating film or an Au alloy coating film which is formed on the Au—TiN mixture coating film and whose Au atom content is constant in the thickness direction.
摘要:
The present invention relates to a method of forming an intermediate film and a hard carbon film over the inner surface of a cylindrical member having a bore, such as a bushing or a cylinder, with the hard carbon film being formed on the intermediate film with a uniform thickness, greatly enhancing of abrasion resistance of the inner surface. The cylindrical member is placed in a vacuum vessel, an auxiliary electrode of an intermediate film forming material, such as a titanium-silicon alloy or the like, is inserted in the bore of the cylindrical member, a sputtering gas is supplied into the vacuum vessel, a voltage is applied to the auxiliary electrode to produce a plasma around the auxiliary electrode in order that the intermediate film forming material is sputtered from the auxiliary electrode and an intermediate film is formed over the inner surface of the cylindrical member. Subsequently, a gas containing carbon, such as methane gas or the like, is supplied into the vacuum vessel, and a voltage is applied to the cylindrical member to produce a plasma in the vacuum vessel in order that a hard carbon film (DLC film) is formed on the previously formed intermediate film over the inner surface of the cylindrical member.
摘要:
A method of forming films over an insulating material is provided whereby an underlayer film having electric conductivity is formed on the surface of the insulating material constituting a base member, and a hard carbon film is formed over the underlayer film so that the surface electrical resistance value of the hard carbon film can be controlled so as not to cause the surface thereof to be charged with static electricity by varying an electrical resistance value of the underlayer film. In the case where the underlayer film is formed of a metal film composed of titanium, chromium, tungsten, or the like, the resistance value thereof can be changed by varying the thickness of the metal film. In the case where the underlayer film is formed of a semiconductor film composed of silicon, germanium, or the like, the resistance value thereof can be changed by varying the thickness of the semiconductor film, or the concentration of an impurity added thereto.
摘要:
A dent (1A) for a reed for use on a high-speed weaving machine, comprises a thin flat strip (3) made of stainless steel, and a hard carbon film (2) formed on only the surface of a working ridge edge portion (3b) of the thin flat strip (3) to come into sliding contact with a yarn. The method of manufacture comprising steps of superposing a plurality of thin flat strips (3) made of a stainless steel in the same shape in a stack with the flat side surfaces (3a) of the adjacent thin flat strips (3) in close contact with each other, placing the stack of thin flat strips (3) in a film forming atmosphere with the ridge edge portions opposite the working edge portions (3b) to come in sliding contact with a yarn trued up by a dent aligning jig, and coating the working ridge edge portions (3b) of the thin flat strips (3) exposed to the film forming atmosphere with a hard carbon film (2).
摘要:
A housing for a subminiature piezoelectric quartz crystal vibrator element, in which a glass substrate has a recess formed in an upper surface thereof, the subminiature quartz crystal vibrator element being supported such as to be positioned within a periphery of the recess in the upper surface and separated by fixed distances from surfaces of the recess, a cover is disposed upon the glass substrate to hermetically seal the quartz crystal vibrator element between the cover and the glass substrate.
摘要:
A decorative part and a process for producing the decorative part. A first nitride layer containing at least one metal selected among hafnium, titanium, and zirconium is formed on the surface of a decorative part comprising a soft base made of a material selected among stainless steel, titanium and titanium alloys, brass, etc., and a second nitride layer containing at least one metal which is selected among hafnium, titanium, and zirconium and is different from that in the first nitride layer is formed on the first nitride layer to thereby form a primer layer. A multilayered hardened layer including a gold alloy layer is further formed as a finish layer on the primer layer.
摘要:
Tableware of Ti or a Ti alloy having a surface hardened layer comprising a first hardened layer in which nitrogen and oxygen are diffused so as to form a solid solution and a second hardened layer which is formed in a region deeper than the first hardened layer. The substrate may have a hard decorative coating film. A substrate comprising Ti or a Ti alloy has on its surface an internal hardened layer comprising a first hardened layer and a second hardened layer, wherein the hard decorative coating film is formed on the surface of the internal hardened layer. The cutlery comprises a working part and a grip, the grip provided with a floating means such as a hollow part. Titanium tableware having excellent long-term mar resistance and high quality appearance, increasing the decorative value of the tableware. Further, a process for surface treatment to obtain the titanium tableware with high productivity and a substrate having a hard decorative coating film with excellent mar resistance and high surface hardness. The cutlery is lightweight, mar-resistant and can be easily handled.