摘要:
A silicone grease composition is provided comprising (A) 2-40% by weight of an organopolysiloxane having a kinematic viscosity of 50-500,000 mm /s at 25 DEG C, and (B) 60-98% by weight of at least one heat conductive filler selected from among metal powders, metal oxide powders and ceramic powders having a thermal conductivity of at least 10 W/m DEG C and an average particle size of 0.1-15.0 mu m. Coarse particles are removed such that a 500-mesh oversize fraction is not more than 50 ppm and a 325-mesh oversize fraction is substantially zero.
摘要:
A swash plate type compressor is arranged with a plurality of semispherical shoes 4 and a disc shaped swash plate 2. A resin coating 12 having a honeycomb structure is formed on a surface 2A and a rear surface 2B (sliding surface) of the swatch plate 2 which slides with the shoe 4. An edge part 12B (top end) of each of the multiple cylinder bodies 12A which forms the resin coating layer 12 are at the same plane and forms a sliding surface which slides with the shoe 4. In addition, an interior space of each cylinder body 12A forms a storage part of a lubricant and a container part for foreign objects 15. The swash plate 2 can be provided with excellent wear resistance, seizure resistance and lubrication retention.
摘要:
The present invention concerns a lubricating composition to be used in the casting of steel, in particular in continuous casting processes. In particular, the present invention concerns a lubricating composition for processes for producing steel in continuous casting comprising a dispersion of a lubricating powder in a liquid medium.
摘要:
The present invention concerns a lubricating composition to be used in the casting of steel, in particular in continuous casting processes. In particular, the present invention concerns a lubricating composition for processes for producing steel in continuous casting comprising a dispersion of a lubricating powder in a liquid medium.
摘要:
A process for drawing wire employing a lubricant comprising perfluorocarbon compounds (PFCs), including aliphatic perfluorocarbon compounds ( alpha -PFCs) having the general formula CnF2n+2, perfluoromorpholines having the general formula CnF2n+1ON, perfluoroamines (PFAs) and highly fluorinated amines (HFAs), and perfluoroethers (PFEs). Such fully and highly fluorinated carbon compounds exhibit a very high degree of thermal and chemical stability due to the strength of the carbon-fluorine bond. Further, because the compounds are fully fluorinated, and therefore do not contain chlorine and bromine, they have zero ozone depletion potential (ODP). Further, because the compounds are photochemically non-reactive in the atmosphere, they are not precursors to photochemical smog and are exempt from the United States Environmental Protection Agency (EPA) volatile organic compound (VOC) definition. Further, because they are volatile, the compounds are easily removed at the end of the process without need for an additional cleaning step. The process provides wire at significantly higher production speeds and longer die life with improved quality and less byproduct debris.
摘要:
A method for treatment of bacterial infections with rifalazil administered once-weekly, or twice-weekly. A method for treatment of tuberculosis caused by Mycobacterium tuberculosis, infections caused by Mycobacterium avium complex, infections caused by Chlamydia pneumoniae and infections caused by Helicobacter pylori by administering to a patient suffering from the bacterial infection 1-100 mg of rifalazil once or twice a week. In this dose regimen, the treatment is fast, efficacious and eliminates undesirable secondary symptoms observed with daily doses of 1-50 mg of rifalazil.
摘要:
A silicone grease composition is provided comprising (A) 2-40% by weight of an organopolysiloxane having a kinematic viscosity of 50-500,000 mm 2 /s at 25°C, and (B) 60-98% by weight of at least one heat conductive filler selected from among metal powders, metal oxide powders and ceramic powders having a thermal conductivity of at least 10 W/m°C and an average particle size of 0.1-15.0 µm. Coarse particles are removed such that a 500-mesh oversize fraction is not more than 50 ppm and a 325-mesh oversize fraction is substantially zero.
摘要:
A stainless steel wire is plated with nickel (Ni) to a thickness of from not less than 1 µm to not more than 5 µm. An inorganic salt coat film mainly composed of at least one of potassium sulfate and borax (borate) and free from fluorine (F) or chlorine (Cl) is then deposited on the nickel (Ni) plate 2 as the substrate. The steel wire is then drawn to a reduction of area of not less than 60% to adjust the surface roughness thereof to a range of from 0.80 to 12.5 µmRz, preferably from 1.0 to 10.0 µmRz.
摘要:
The present invention provides lubricant compositions for the powder metallurgical field. The lubricant compositions contain a solid phase lubricant such as graphite, molybdenum disulfide, and polytetrafluoroethylene in combination with a liquid phase lubricant that is a binder for the solid phase lubricant. The binder can be chosen from various classes of compounds including polyethylene glycols, polyethylene glycol esters, partial esters of C3-6 polyhydric alcohols, polyvinyl esters, and polyvinyl pyrrolidones. The binder is solubilized in an organic solvent.