145results about How to "Good sliding properties" patented technology

A magnetic recording medium comprising a backcoating layer, a support, and a magnetic layer containing ferromagnetic powder, the backcoating layer having 800 to 1500 projections of 50 nm or more and less than 75 nm in height per 6400 μm² and 600 or less projections of 75 nm or more in height per 6400 μm².

The present invention relates to a switch magnetic valve, which is taken as a pre-control valve to generate and control pressure in vehicle pneumatic braking system, wherein the switch magnetic valve comprises a first passage, used for introducing compressed-air into the switch magnetic valve or export compressed-air from the switch magnetic valve; a second passage, used for introducing compressed-air into the switch magnetic valve or export compressed-air from the switch magnetic valve; a valve chamber including a valve seat for selectively release and break off compressed-air stream; and a valve core, provided with an outer housing surface and a hole used let the compressed-air pass through. According to the invention, the valve chamber (32) is provided with a flow path (28); the flow path (28) neighbors with housing surface (70) of the valve core (24); the flow path (28) is formed by at least one gap on housing surface (70) of the valve core (24) in preference.

The invention relates to a layered composite material for sliding elements, comprising a base layer, applied to the surface of a sliding element, made of an alloy comprising copper or aluminum and a sliding layer situated over said layer, wherein the sliding layer comprises 90-99.6 wt % of tin or tin alloy having a tin ratio of greater than 60 wt % and 0.2-6 wt % solid lubricant particles having a Mohs hardness of equal to or smaller than 3 and a particle size of equal to or smaller than 10 [mu]m. The invention further relates to the production of said layered composite material and to use thereof for sliding bearings.

A method for producing an alloyed hot-dip galvanized steel sheet having excellent adhesion to a plating and excellent sliding properties, which comprises subjecting a steel sheet to an oxidation treatment and then subjecting the resultant product to reduction annealing, said method being characterized in that the oxidation treatment comprises heating the steel sheet in an atmosphere containing 1000 ppm or more of O2 and a remainder made up by N2, CO, CO2, H2O and unavoidable impurities until the temperature of the steel sheet reaches 600 DEG C or higher and then further heating the steel sheet in an atmosphere containing less than 1000 ppm of O2 and a remainder made up by N2, CO, CO2, H2O and unavoidable impurities until the temperature of the steel sheet reaches 700 DEG C or higher and the reduction annealing is carried out in an atmosphere having a dew point of 5 DEG C or higher and containing 1 to 15 vol% of H2 and a remainder made up by N2 and unavoidable impurities.

The invention relates to a radial-axial rolling bearing (1, 24) with an inner ring (2), to which an outer ring (3) is arranged coaxially, between which cylindrical rolling bodies (6) roll in order to absorb radial forces, and with cylindrical rolling bodies (11) arranged on both sides in order to absorb axial forces, the tracks of said rolling bodies being formed on the one hand by faces of the outer ring (3) and on the other hand by a washer disk (9, 10) each, wherein the cylindrical rolling bodies (11) are guided in cage segments, the guide bars of which engage in a gap (4) formed by the inner ring (2) and outer ring (3). Said bearing arrangement (1, 24) is characterized in that the cage segments (17, 25) are configured in an arched manner and have L-shaped angled guide bars (22) which extend over at least part of a peripheral expansion of the cage segments (17, 25) and each individual cage segment (17, 25) has a plurality of pockets (18) in each of which a cylindrical rolling body (11) is captively received. Due to this type of configuration of the cage segments (17, 25) the cylindrical rolling bodies (11) housed therein are guided on the associated tracks securely and precisely.

Provided is a nitrogen-containing amorphous carbon film exhibiting excellent durability even when formed on the surface of a sliding member used under high surface pressure or under a lubricating oil environment. The nitrogen-containing amorphous carbon film is formed by physical evaporation onto the sliding surface of a sliding member and contains 8.0 to 12.0 atomic % of hydrogen and 3.0 to 14.0 atomic % of nitrogen. The nitrogen-containing amorphous carbon film is effective when, for instance, formed on at least one sliding surface of a sliding member, such as a sliding part of an automobile engine.

A lubricant containing a compound (A) comprising a perfluoropolyether having a main-chain structure of the formula (1) and having a polar group at each of opposite terminals thereof, and a compound (B) comprising a perfluoropolyether having a main-chain structure of the formula (1) and having a nonpolar group at least one terminal thereof

—(CF₂CF₂CF₂O)a-  (1)

wherein a is a real number of 5 to 30.

A sliding member includes a substrate, a porous layer provided on the surface of the substrate and a sliding layer with which the porous layer is impregnated and coated. The sliding layer contains polybenzimidazole, 1–70 vol % of a solid lubricant and 0.1–10 vol % of hard particles.

A sliding member (1) is made of a sintered compact. This sintered compact includes: a sliding layer (2) that contains Fe containing an alloying element of at least one kind selected from among Ni, Mo, Mn, and Cr, and Cu and C as main components; and a base layer (3) that is sintered together with the sliding layer (2) while being in contact with the sliding layer (2), and contains Fe, Cu, C and a metal having a melting point lower than a melting point of the Cu as main components. The sliding layer (2) has a sliding surface (A) slidable relative to another member.

A polyolefin multilayer microporous membrane includes at least first microporous layers which form both surface layers of the membrane and at least a second microporous layer disposed between the both surface layers, wherein static friction coefficient of one of the surface layers of the polyolefin multilayer microporous membrane against another surface layer in a longitudinal direction (MD) is 1.1 or less, and wherein pore density calculated from an average pore radius measured by mercury porosimetry method and porosity, according to Formula (1) is 4 or more:

Pore density=(P/A³)×10⁴  (1)

wherein A represents the average pore radius (nm) measured by mercury porosimetry method and P represents the porosity (%).

A patterned magnetic recording medium includes a magnetic layer having a track-shape and/or dot-shape relief pattern which demarcates information recording regions; a first protective layer covering the magnetic layer; and a second protective layer formed on the first protective layer and including a tetrahedral carbon (ta-C) film. The first protective layer has excellent corrosion resistance and the second protective layer has excellent magnetic head sliding characteristics. A method for manufacturing the medium includes forming an etching pattern of photohardening etching resist on an underlayer or magnetic layer using an imprinting method and etching the underlayer or magnetic layer to form a relief pattern; forming the first protective layer on the relief pattern of the magnetic layer using plasma CVD; and forming the second protective layer including a tetrahedral carbon (ta-C) film, on at least respective top portions of the relief pattern, by a FCA method or by a FCVA method.

The invention discloses nano-carbon sol and application thereof; the nano-carbon sol is characterized in that the carbon particle size is in the range from 1 to 500 nm; the nano-carbon sol is prepared by adding sodium lignin sulfonate, which is 0.08-0.12% of the total weight of sol and is 6500 Dalton in molecular weight, into the nano-carbon sol obtained by electrolyzing water by taking a graphite electrode as the anode; the carbon content in the sol is 0.6 wt%. The nano-carbon sol disclosed by the invention is applied to petrochemical industries, medicines, environmental protection, antiviral protection and catalysts; in the aspect of medicines, the nano-carbon sol can be used as a medicine additive and a film wrapped for external injury; in the aspect of petrochemical industries, the nano-carbon sol can be used as a dispersing agent in the refining process; in the aspect of environmental protection, the nano-carbon sol can be used as a flocculating agent and bactericide for water treatment; in the aspect of antiviral protection, the nano-carbon sol not only can be used as an antiviral filtering material but also can be used as a chemical catalyst; the nano-carbon sol disclosed by the invention has the antiinflammation effect; a nano-carbon sol medical catheter has excellent mechanical strength, good low-friction of the sliding surface and antithrombus; in addition, the nano-carbon sol disclosed by the invention has excellent biological degradability.

A resin structure comprising a resin formed body (1) and a liquid layer (3) formed on a surface of the resin formed body (1), the liquid layer (3) having liquid protrusions (3a) that are locally protruded on the surface thereof. The structure exhibits improved properties on the surface of the resin formed body (1), such as improved sliding property and non-adhesiveness to various substances maintaining stability as a result of forming the liquid layer (3).

A copper base sintered slide member is characterized by being composed of 0.5 to 20 wt.% tin, 0.1 to 35 wt.% manganese, 2 to 25 wt.% solid lubricant and the balance copper. Further, there is provided a double layer copper base sintered slide member consisting of a copper base alloy sintered layer and, unified therewith, a metal lining, characterized in that the copper base alloy sintered layer is composed of 0.5 to 20 wt.% tin, 0.1 to 35 wt.% manganese, 2 to 25 wt.% solid lubricant and the balance copper. These slide members are lead-free copper base sintered slide members, which exhibit slide performance equal to or superior to that of lead-containing copper base sintered slide members and can be appropriately used as oil-bearing sintered slide members. Moreover, the copper base sintered slide member can be appropriately used even in dry friction conditions or high-temperature region where use of lubricating oil is difficult, and the double layer sintered slide member exhibits excellent slide performance even in high-load conditions.

The invention relates to a planetary gear set (1) comprising a housing (2), a sun gear shaft (3) which is mounted rotatably in the housing (2) and which can be driven by means of a motor, a sun gear (6) which is held rotationally conjointly on the sun gear shaft (3), a planet gear carrier (7) which is mounted rotatably in the housing (2) and on which rotatably mounted planet gears (8) are held, wherein the planet gears (8) engage with the sun gear (6), an internal gear (11) which is arranged in positionally fixed fashion in the housing (2) and which has an internal toothing and which engages with the planet gears (8), a drive output flange which is operatively connected to the planet gear carrier (7) and which is mounted rotatably on the housing (2), and at least one oil supply which is designed to deliver oil to tooth engagement regions and/or bearings, wherein the oil supply comprises a sun gear shaft bore (20) which extends in the longitudinal direction of the sun gear shaft (3), a gap seal bushing (21) which is fluidically connected to the sun gear shaft bore (20), a planet gear carrier distributor (22) which is fluidically connected to the gap seal bushing (21) and which is provided on the planet gear carrier (7), and oil-conducting lines (23, 24) which are arranged on the planet gear carrier (7) and which are fluidically connected to the planet gear carrier distributor (22) and which lead to tooth engagement regions and/or bearings.

The objective of the present invention is to provide a liquid crystal polyester resin composition which has high strength and low warpage due to reinforcement by a filler and high toughness capable of withstanding press fitting of pins, and with which a molded article with excellent sliding properties and bending fatigue properties can be obtained. This liquid crystal polyester resin composition comprises 10 to 100 parts by weight of (B) a mica relative to 100 parts by weight of a liquid crystal polyester in which the ratio of (A) a hydroxy end group amount (a) and a total of the hydroxy end group amount (a) and an acetyl end group amount (b), (a)/[(a)+(b)], is 0.70 to 1.00. The volume average particle size of the (B) mica in the liquid crystalline polyester resin composition is 10 to 50 mum, and the aspect ratio of the (B) mica is 50 to 100.

The invention has its object to provide a swash plate compressor capable of realizing demonstration of an excellent sliding characteristic when a drive shaft is rotated at high speed, and of a high refrigerating capacity when the drive shaft is rotated at low speed.

With the swash plate compressor of the invention, an oil guide groove, an oil guide hole, a first hole, an outflow hole, a valve hole, a communication port, a receiving chamber, a throttle hole, and a second hole constitute a release passage. The oil guide groove, the oil guide hole, the first hole, the outflow hole, the valve hole, the communication port, the receiving chamber, and the throttle hole constitute a first passage. Also, the second hole constitute a second passage. A valve mechanism increases a ratio, at which the first passage occupies the release passage, as a drive shaft is increased in rotating speed.

A pattern light guide plate of the present invention comprises: a base layer; and a skin layer laminated on an upper surface of the base layer, wherein the skin layer has a lenticular pattern formed in the direction orthogonal to a light incident surface. The light guide plate of the present invention can be used in a liquid crystal display (LCD) as it has a narrow light emitting angle required for one-dimensional dimming or scanning, has superior light transmissivity, has excellent slip property and thus eliminates a protection film, significantly improves reliability, prevents light leakage at a light incident unit, corrects luminance unevenness, and significantly improves workability during processes.

The invention provides a method for preparing a sealing strip of a scroll compressor. The sealing strip prepared by using the method has high strength, a small thermal expansion coefficient, a small abrasion rate and long service life. The preparation method comprises the following step of mixing the following components in parts by weight: 20-30 parts of polybenzimidazole, 40-50 parts PEEK (Polyether-Ether-Ketone), 5-10 parts of carbon fiber and 3-5 parts of molybdenum disulfide, and carrying out hot-press forming.

The invention relates to apparatus (1) which perform stretching and blow molding on a plastic material perform to form a plastic material container. The apparatus (1) has a bearing assembly (2) used for bearing a blow-molding die (3) comprising at least two housing components (4, 5) and a base component (6), and has a base component clamping assembly comprising a base component accommodating mechanism (11; 111) and used for holding a holding assembly (12, 13 and 14, 15; 114, 115 respectively) of the base component accommodating mechanism (11; 111), wherein the base component accommodating mechanism (11; 111) can be clamped to the holding assembly (12, 13 and 14, 15; 114, 115 respectively) via a forced interlocking fastening part (18; 118), and the forced interlocking fastening part (18; 118) has a forced interlocking area (22) made of ceramic materials.

The objective of the present invention is to provide a seal ring which has excellent dimensional stability and fit with an opposing member, is able to effectively prevent leakage of oil even at very low hydraulic pressure, and has excellent sliding properties. The seal ring is produced from a resin composition containing (A) a polyphthalamide and (B) at least one species selected from among an elastomer, a cross-linked rubber, and a dynamically cross-linked resin. To the resin composition may also be added (C) at least one type of filler material selected from among carbon fibers, glass fibers, alumina fibers, potassium titanate fibers, boron fibers, silicon carbide fibers, carbon nanotubes, montmorillonite, bentonite, talc, isinglass, mica, molybdenum disulfide, glass beads, graphite, fullerene, anthracite powder, aluminum oxide, titanium oxide, magnesium oxide, potassium titanate, boron nitride, and PTFE powder.