75results about How to "Reduced wear resistance requirements" patented technology

A porous metal body having a foam structure of 500 mum or less in average pore diameter, wherein the skeleton is composed of an alloy primarily including Fe and Cr, and Cr carbide or FeCr carbide is uniformly dispersed in the texture. The metal porous body is produced by preparing a slurry primarily containing an Fe oxide powder having an average particle diameter of 5 mum or less, at least one powder selected from metallic Cr, Cr alloys, and Cr oxides, a thermosetting resin, and a diluent, applying a coating of this slurry to a resin core body having a foam structure, performing drying, and thereafter, performing firing in a non-oxidizing atmosphere so as to produce a metal porous body having the aforementioned skeleton structure.

The invention provides a coated cutting tool made of cemented carbide in which a hard coating layer has excellent wear resistance in high-speed cutting operation, wherein (a) a crystal orientation hysteresis layer which consists of a carbonitride compound layer and (b) a hard coating layer which consists of a layer of nitride compound and has a well defined crystal orientation and / or degree of crystallinity are formed on the surface of a cemented carbide substrate, preferably on the surface of a tungsten carbide based cemented carbide or titanium carbonitride based cermet by physical vapor deposition, wherein the crystal orientation hysteresis layer is deposited between the surface of a cemented carbide substrate and the hard coating layer. In one specific example, (a1) the carbonitride compound layer has an average thickness of 0.05 to 0.5 μm and is preferably a Ti—Al carbonitride compound layer expressed by the composition formula as (Ti1−XAlX)(N1−YCY), wherein X ranges from 0.05 to 0.20 and Y ranges from 0.01 to 0.15 by atomic ratio and (b1) the nitride compound layer has an average thickness of 2 to 15 μm and is preferably a Ti—Al nitride compound layer expressed by the composition formula as (Ti1−ZAlZ)N, wherein Z ranges from 0.45 to 0.65 by atomic ratio. In another specific example, (a2) the carbonitride compound layer has an average thickness of 0.05 to 0.5 μm and is preferably a Ti—Al carbonitride compound layer expressed by the composition formula as (Ti1−XAlX)(N1−YCY), wherein X ranges from 0.01 to 0.15 and Y ranges from 0.01 to 0.15 by atomic ratio and (b2) the nitride compound layer has an average thickness of 2 to 10 μm and is preferably a Al—Ti—Si nitride compound layer expressed by the composition formula as (Al1−(A+B)TiASiB)N, wherein A ranges from 0.35 to 0.55 and B ranges from 0.05 to 0.20 by atomic ratio.

An oil refrigeration screw compressor being applied to a refrigeration system etc., in which the problem of strength reduction of a bearing material under high temperatures and that of lifetime reduction of the bearing material due to viscosity lowering of lubricant are solved. A lubricant supply system to a compressor body is divided into a bearing oil supply system for supplying lubricant to each bearing of the compressor body at low pressure and into a temperature control oil supply system for supplying lubricant into the compressor body at high pressure. The bearing oil supply system is a closed circuit oil supply system comprising an oil supply tank, an oil cooler, and an oil supply pump, and the temperature control oil supply system is a closed circuit oil supply system comprising an oil separator and an oil cooler.

A combination through-wall masonry flashing and drainage device has a flashing membrane made of stainless steel sheet and a reinforcing cloth affixed to a first side of the flashing membrane. The flashing membrane has a thickness between 0.001 and 0.007 inch. When installed between an inner wall and an outer wall, water between the inner wall and outer wall is diverted to the outside of the outer wall by the through-wall masonry flashing and drainage device.

A combination through-wall masonry flashing and drainage device has a flashing membrane made of stainless steel sheet and a reinforcing cloth affixed to a first side of the flashing membrane. The flashing membrane has a thickness between 0.001 and 0.007 inch. When installed between an inner wall and an outer wall, water between the inner wall and outer wall is diverted to the outside of the outer wall by the through-wall masonry flashing and drainage device.

An objective of the invention is to provide a conjugated diene-based rubber having a specific composition and a method of producing the same, an oil extended rubber using the same, as well as a rubber composition capable of being converted into a vulcanized rubber which has a low rolling resistance, an excellent wearing resistance and the like, and is useful, for example, as a tire or the like. A conjugated diene-based rubber in the invention has a glass transition point of -60 to 0° C., an olefinically unsaturated nitrile monomer unit randomly contains in its molecular chain, its repeating units consists of 9 to 30% by mass of an olefinically unsaturated nitrile monomer unit such as acrylonitrile, 10 to 50% by mass of an aromatic vinyl monomer unit such as styrene and 20 to 81% by mass of a conjugated diene monomer unit such as 1,3-butadiene, and its Mooney viscosity [ML1+4(100° C.)] is 20 to 200. An oil extended rubber in the invention comprises 100 parts by mass of the conjugated diene-based rubber and 10 to 60 parts by mass of an extending oil. A rubber composition in the invention comprises a rubber component containing a conjugated diene-based rubber, and an inorganic filler such as a silica and / or a carbon black.