摘要:
In a mechanical plating process, oxidation-prone metals, such as aluminum, titanium, magnesium, and mixtures thereof, can be applied to metal substrates without the corrosion problems encountered in the prior art. To avoid such problems, the substrate is plated with the oxidation-prone metal and relatively minor amounts of an immersion metal and, optionally, a protective metal. The immersion metal which can be salts or oxides of metals selected from the group consisting of tin, copper, nickel, cadmium, zinc, lead, and mixtures thereof coats the oxidation-prone metal in forming a mechanical plating coating and prevents formation of an oxide layer on the oxidation-prone metal. The protective metal which may be selected from the group consisting of zinc, cadmium, and mixtures thereof prevents oxidation of the plated metal substrate when exposed to the environment. An etching agent is used either prior to and/or during mechanical plating.
摘要:
In a mechanical plating process, oxidation-prone metals, such as aluminum, titanium, magnesium, and mixtures thereof, can be applied to metal substrates without the corrosion problems encountered in the prior art. To avoid such problems, the substrate is plated with the oxidation-prone metal and relatively minor amounts of an immersion metal and, optionally, a protective metal. The immersion metal which can be salts or oxides of metals selected from the group consisting of tin, copper, nickel, cadmium, zinc, lead, and mixtures thereof coats the oxidation-prone metal in forming a mechanical plating coating and prevents formation of an oxide layer on the oxidation-prone metal. The protective metal which may be selected from the group consisting of zinc, cadmium, and mixtures thereof prevents oxidation of the plated metal substrate when exposed to the environment. An etching agent is used either prior to and/or during mechanical plating.
摘要:
Chipping, flaking, and cracking of mechanical galvanizing coatings applied on metal substrates is prevented by interposing between successive layers of plating metal, which are used in galvanizing the metal substrate, a layer of cushioning metal. Each interposed layer of cushioning metal imparts malleability to the coating such that chipping, cracking, and flaking is prevented or substantially reduced. The plating metal is preferably zinc, while the cushioning metal is preferably tin, lead, or mixtures thereof.
摘要:
Chipping, flaking, and cracking of mechanical galvanizing coatings applied on metal substrates is prevented by interposing between successive layers of plating metal, which are used in galvanizing the metal substrate, a layer of cushioning metal. Each interposed layer of cushioning metal imparts malleability to the coating such that chipping, cracking, and flaking is prevented or substantially reduced. The plating metal is preferably zinc, while the cushioning metal is preferably tin, lead, or mixtures thereof.
摘要:
A composition for stripping tin, lead or solder, as well as any underlying copper-tin alloy, from copper surfaces, containing an alkane sulfonic acid, preferably methane sulfonic acid, an inorganic nitrate, preferably ferric nitrate, and an inhibitor component. The composition effects rapid stripping without any appreciable formation of sludge or precipitate or suspended particles, and without any substantial attack on the underlying copper surface.
摘要:
Mechanisms and techniques provide a method for determining the performance of a server, based upon a connection characteristic of a connection between the server and a client. The connection characteristic, such as the window size of the server, provides information regarding the performance or capacity of the server. Variation between the connection characteristic and a preferred connection characteristic is used by a data communications device, for example, to determine the performance of the server. Based upon the variation in the connection characteristic, the data communications device is then able to direct incoming content requests to other servers in communication with a network, as required.
摘要:
A cleaning assembly for protecting a finger while cleaning razor blades includes a sleeve that may be worn on the finger. The sleeve protects the finger while cleaning razor blades. The sleeve has a top end, a bottom end and an outer wall extending therebetween. The sleeve has a length between 5 cm and 8 cm. A plurality of bristles is coupled to the sleeve. The bristles may remove debris from between the razor blades.
摘要:
In a mechanical plating process, lubricant particles can be coated on a metal substrate together with the particulate plating metal to enhance the mechanically-applied coating's lubricity. The lubricant can be particles of fluorocarbon polymers, fluorocarbon-hydrocarbon blended polymers, powdered, elemental carbon, powdered fluorinated carbon, or mixtures thereof. The lubricant particles have a diameter less than the thickness of the coating (which is usually from 2.5 to 132.5 mils), so they will not be dislodged from the coating. The particles must not be too small or they may be washed away by plating liquids or may be applied too far from the coating surface to enhance lubricity. These dimensional relationships insure that the lubricant particles are entrapped within the coating.