Abstract: The present invention relates to a method for producing an electrical contact, in particular an electrical plug contact, comprising the steps of a) providing a substrate, wherein the substrate has a metallic and/or metallized surface, and b) applying a low-friction surface to the metallic and/or metallized surface of the substrate, wherein the low-friction surface is applied by mechanical rubbing, polishing and/or buffing of a solid lubricant; or wherein the low-friction surface is applied by spray application of a solid lubricant; or wherein the low-friction surface is applied by applying a solid lubricant by means of a drum washer; and wherein the low-friction surface (6) has a film thickness of 0.001 ?m-4 ?m.

Abstract: The invention relates to a silver electrolyte for the deposition of silver layers on substrates, which comprises potassium silver cyanide, potassium cyanide with a content of at least 10 g/L, at least one grain refiner with a content of 0.2 to 10 g/L, at least one dispersant with a content of 1 to 10 g/L and at least one solid component with a content of 1 to 150 g/L, wherein the particles of the solid component have an average particle size (d50) of 10 nm-100 ?m. Furthermore, contact surfaces and methods for the deposition of such contact surfaces are shown.

Abstract: The invention relates to a silver electrolyte for the deposition of silver layers on substrates, which comprises potassium silver cyanide, potassium cyanide with a content of at least 10 g/L, at least one grain refiner with a content of 0.2 to 10 g/L, at least one dispersant with a content of 1 to 10 g/L and at least one solid component with a content of 1 to 150 g/L, wherein the particles of the solid component have an average particle size (d50) of 10 nm-100 ?m. Furthermore, contact surfaces and methods for the deposition of such contact surfaces are shown and the use of the electrolyte according to the invention in strip electroplating.

Abstract: A punch for a rotary press, which has a shaft and a head, wherein the head has an upper mirror surface, a cylinder surface and a rounded transition area between the mirror surface and cylinder surface with a first and a second radius, wherein the first radius is larger than the second radius and wherein the punch head also has a preferably conical transition area from the cylinder surface to the shaft, wherein the diameter of the head is less than 25 mm and the first radius of the transition area is selected such that its height is less than half the height of the cylinder surface.

Abstract: A device for high-voltage direct current transmission has a first converter unit and a second converter unit. The converter units are each connected to a main line and to a return line. Each converter unit is connected to a separate dedicated return line, and the return lines are connected to each other via a pole line. The pole line can be interrupted by a pole line interrupting unit. In this way, high variability in the operating modes is achieved, particularly for compensating for operational shut-offs.

Abstract: Embodiments of methods of modifying surface features on a workpiece with a gas cluster ion beam are generally described herein. Other embodiments may be described and claimed.

Abstract: A punch for a rotary press, which has a shaft and a head, wherein the head has an upper mirror surface, a cylinder surface and a rounded transition area between the mirror surface and cylinder surface with a first and a second radius, wherein the first radius is larger than the second radius and wherein the punch head also has a preferably conical transition area from the cylinder surface to the shaft, wherein the diameter of the head is less than 25 mm and the first radius of the transition area is selected such that its height is less than half the height of the cylinder surface.

Abstract: Embodiments of methods of modifying surface features on a workpiece with a gas cluster ion beam are generally described herein. Other embodiments may be described and claimed.

Abstract: Method and arrangement for friction welding, wherein one of the parts to be joined is oscillated by means of an electromagnetic oscillator. The oscillator is electrically braked after controlled stimulation of oscillations and a pre-determinable oscillation period.

Abstract: A process of producing a synthetic ultrafine endless yarn on the basis of polyester or polyamide in the range from 0.25 to 0.9 denier per POY filament by melt spinning at draw-off speeds between 2000 and 6000 m/min with a high spinning safety. To the polyester or polyamide a second immiscible amorphous polymer may be added in an amount of 0.05 to 5 wt %. One feature of the invention is the adjustment of a balanced temperature profile in the cross-section of the filament bundle before reaching the draft zone, as well as the suitable adaptation between snap-back length and the draft point of the filaments in the quench duct.

Abstract: A face milling cutter or angular milling cutter, with a carrier body which on its periphery at regularly or irregularly distributed distances comprises pockets which extend parallel to the rotational axis of the carrier body for accommodating cassettes which for their part comprise seating surfaces for receiving cutting plates, with a fastening device for the cutting plates in the cassette, with a screw fastening for fixing the cassettes in the pockets and with adjusting screws for a limited axial adjustment of the cassettes in the pockets, wherein the adjusting screws are seated in threaded bores of the carrier body, which proceeding from the end-face of the carrier body are arranged approximately parallel to the rotational axis of the carrier body.

Abstract: In a method for preparing 3-nitrobenzene sulphonic acid chloride from nitrobenzene and chlorosulphonic acid, nitrobenzene is reacted with chlorosulphonic acid at approximately 90.degree. to approximately 120.degree. C. and an inorganic acid chloride is then allowed to act on the resultant reaction mixture at approximately 40.degree. to approximately 90.degree. C.

Abstract: An unsaturated polyester suitable as a binder which comprises a reaction product of(A) an acid component comprising one or a mixture of .alpha.,.beta.-mono-olefinically unsaturated dicarboxylic acids or polycarboxylic acids free from polymerizable carbon-carbon multiple bonds or functional derivatives thereof,(B) a polyhydric alcohol,(C) a polycyclic compound containing a norbornane ring system and having one or more identical substituents selected from carboxyl, hydroxy and amino groups, and(D) an acrylic compound which is capable of condensing with at least one of components (A) to (C), i.e. a hydroxyalkyl ester of acrylic or methacrylic acid having up to 3 carbon atoms in the hydroxyalkyl groups, or -alkylol-acryl- or methacrylamides containing up to 4 carbon atoms in the alkylol group or mixtures thereof and a process of their preparation.

Abstract: An unsaturated polyester suitable as a binder which comprises a reaction product of(A) an acid component comprising one or a mixture of .alpha.,.beta.-mono-olefinically unsaturated dicarboxylic acids or polycarboxylic acids free from polymerizable carbon-carbon multiple bonds or functional derivatives thereof,(B) a polyhydric alcohol,(C) a polycyclic compound containing a norbornane ring system and having one or more identical substituents selected from carboxyl, hydroxy and amino groups, and(D) an acrylic compound which is capable of condensing with at least one of components (A) to (C) and a process of their preparation.

Abstract: Benzimidazolone-(2) is obtained in good yield and high purity when o-phenylene diamine is condensed with urea in water at a pH of 4 to 9 and a temperature above 90.degree. C.

Abstract: A composition for use as a binder in a non-aqueous printing ink which comprises a modified hydrocarbon resin containing carboxylic acid units, the carboxylic groups of which are partially esterified with a polyhydric alcohol in such an amount that the modified hydrocarbon resin product contains from 0.01 to 0.7 ester groups of polyhydric alcohol based on each acid group originally present and a process for its preparation.

Abstract: A modified hydrocarbon resin comprising (A) a major amount of a cycloaliphatic diene resin component and (B) a minor amount of an olefinically unsaturated polycarboxylic acid component, wherein at least 5% of the carboxyl groups are esterified with an alcohol selected from the group consisting of (a) a monohydric, (b) a dihydric alcohol and (c) a combination of (a) and (b), a process for its preparation and a printing ink composition containing said modified hydrocarbon resin.

Abstract: A resinous road marking composition comprising in addition to pigments and fillers a hydrocarbon resin having an average molecular weight of up to 10,000 and containing 4 to 50 per cent by weight of chemically built-in phenolic components which composition may contain an additional hydrocarbon resin being free from phenolic components. A process for preparing said composition which is pourable as a hot melt wherein the resinous binder is maintained molten at a temperature in the range from 100.degree. to 200.degree.C and a mixture of the fillers and pigments is added thereto and mixed in homogeneously.