41results about How to "Low friction coefficient" patented technology

The present invention relates to an anti-friction and anti-wear liquid coating composition for use with parts made of materials that have softening points below about 300° F. and articles so coated. The present invention also relates to a method of coating parts made from a low softening point materials with an anti-friction and anti-wear hard coating composition. The coating composition comprises a mixture of (i) solid lubricants comprising boron nitride, graphite and molybdenum disulfide, (ii) a thermoset resin system, (iii) catalyst for curing the resin system and (iv) a solvent system comprising highly volatile solvents. The coating composition is applied to the part and cured to form a coating on the part.

Disclosed is a polyamideimide-based film coating composition free from any restricted substance or a substance which might possibly be a restricted one such as N-methyl pyrrolidone and N-ethyl pyrrolidone and capable of replacing a conventional coating composition using a solvent such as N-methyl pyrrolidone. The polyamideimide-based film coating composition of the present invention is a polyamideimide-based film coating composition comprising a polyamideimide resin and a solvent, the polyamideimide resin being dissolved as a binder in the solvent, wherein the solvent contains γ-butyrolactone and cyclopentanone, and a volume of γ-butyrolactone is 50% by volume or more compared to a total volume of γ-butyrolactone and cyclopentanone.

The invention discloses a nanometer composite ocean anticorrosion coating and a preparation method thereof, belonging to the field ofcorrosion prevention of coatings. The coating contains the following components in percentage by weight: a component A: 20%-40% of acrylic resin, 5%-10% of a hydroxyl epoxy phosphate dispersing agent, 4%-7% of a Fe3O4@TiO2-h-BN hybridized composite material, 0.5%-2%of nano-crystalline cellulose, 5%-15% of epoxy resin, 1.2%-3.5% of other aids, 20%-25% of deionized water, 5%-10% of zinc powder and 3%-7% of calcium carbonate; and a component B: a curing agent, namely 15%-25% of a water-based isocyanate curing agent. The coating prepared by virtue of the preparation method has good wear resistance, fouling resistance and corrosion resistance, is mainly applied to the fouling prevention and corrosion prevention of petroleum steel-frame structure platforms in an ocean atmospheric region environment and is also suitable for the fields of fouling prevention andcorrosion prevention of ships and underwater pipelines.

The invention discloses cis-12 hydroxy octadecenoic acid-3-methyl-imidazole hexafluorophosphate ionic liquid and a four-stroke engine lubricating oil composition containing the same, and belongs to the field of lubricating oil production. The lubricating oil composition is mainly mixed by the following raw materials according to the weight ratio: lubricating oil base oil, cis-12 hydroxy octadecenoic acid-3-methyl-imidazole hexafluorophosphate, a viscosity index improver, a dispersing agent, a clearing agent, an oxidation and corrosion inhibitor, a base number reserving agent and an antifoaming agent. Compared with the prior art, the cis-12 hydroxy octadecenoic acid-3-methyl-imidazole hexafluorophosphate ionic liquid solves the problem that various annexing agents are easy to separate out when lubricating oil is placed for a long time, has the characteristics of good usability, environmental protection, energy saving and the like, and has a good application and dissemination valve, and abrasion of an engine can be obviously reduced.

Finger gloves are provided for one or more fingers of the user of an electronic device with a touch screen. The finger gloves include a contact area made of a low-friction material.

An improved table and ink wipe cartridge for a pad printer consists of a table mounted to a base by a pair of parallel, nylon bearings. The bearings enable the table to slide back and forth easily without requiring conventional ballbearings and guides. The cartridge automatically rolls and wipes ink on a print tray carried by the table.

The invention discloses a method for preparing a graphene composite material for a pantograph. The method comprises the steps as follows: S1, graphene nano-platelets are placed into a furnace at 300-400 DEG C for heat treatment for 40-60 min, and the activity of the graphene nano-platelets is improved; S2, the graphene nano-platelets treated in S1 are placed in a CuSO4 plating solution for copperplating, are taken out after 3-6 min, are washed with deionized water for 3-6 times and then are placed into a vacuum drying oven for drying; S3, the graphene nano-platelets treated in S2 are evenly mixed with graphene powder, copper powder and an additive, then the mixture is placed into a mold to be subjected to cold-press molding under the pressure of 150-270 MPa, and a composite block is obtained; the graphene nano-platelets, the graphene powder, the copper powder and the additive are evenly mixed in parts by weight as follows: 10-30 parts of the graphene nano-platelets, 10-20 parts of thegraphene powder, 64-78 parts of the copper powder and 5 parts of the additive; S4, the composite block formed through cold-press molding in S3 is placed into a sintering furnace for sintering, a shielding gas is introduced to prevent the composite block from being oxidized, the sintering temperature ranges from 800 DEG C to 900 DEG C, and the duration ranges from 3 h to 5 h; S5, the composite block treated in S4 is machined into the pantograph adopting the structure designed in advance.

The invention relates to long-life friction-reducing energy-saving lubricating grease for a pure electric vehicle motor bearing and a preparation method thereof. The long-life friction-reducing energy-saving lubricating grease comprises, by mass, 70-93% of base oil, 5-20% of a ternary composite thickener, 0.1-5% of an antioxidant agent, 0.1-5% of a rust and corrosion inhibitor and 1-5% of a structural stabilizer. The long-life friction-reducing energy-saving lubricating grease has good low-temperature use performances, a long service life and a low friction factor and saves electric energy. Under the same reserve of electricity, the lubricating grease increases the travelled distance of the pure electric vehicle, prolongs the service life of the pure electric vehicle motor bearing, reducesthe use and maintenance costs of the pure electric vehicle, has good high and low temperature performances and colloidal stability, does not produce three wastes and is safe and environmentally friendly.

The invention relates to the anti-sticking agent technical field, and particularly relates to a metal surface treatment anti-sticking agent prepared from the following raw materials in parts by weight: 8-16 parts of hydroxyl silicone oil, 10-20 parts of polyaspartic acid, 5-10 parts of alkyl glycoside, 8-18 parts of polytetrafluoroethylene, 5-10 parts of polyamideimide resin, and 10-20 parts of deionized water. The metal surface treatment anti-sticking agent is reasonable in composition, obvious in effect and stable in chemical properties, can effectively prevent adhesion between layers of a metal strip, and also has the function of corrosion resistance; the metal product surface quality is bright and clean; and the anti-sticking agent has good levelling property and thixotropy, meets processing at various temperatures, and can be used for a long time.

The invention relates to a split-flow injection allocation method and a split-flow distributor. The method of the invention is characterized in that every subsection of a polymer injection pipe is provided with at least one distributor, and a split-flow barrier is arranged in the distributor to divide polymeric liquid entering into the distributor into two parts, one part of which flows up to an upper oil reservoir and the other part of which continues to flow down to the lower oil reservoir. The polymer injection pipe is provided with the split-flow distributor and the surface of the split-flow distributor is sleekly connected with the outlet of the distributor. So liquid passing by the distributor has little partial drop pressure loss, low friction resistance and little shearing action, thus effectively reducing the loss of the viscosity of injected polymer. The split-flow injection allocation method and the split-flow distributor can be widely used for improving the recovery ratio of reservoir oil displacement in an offshore oilfield.

The invention provides an asphalt density and relative density measuring method based on a weighing method, comprising the following steps of: 1) performing a first weighing to obtain m1 after pretreating a wide-mouth container with a cover with an anti-sticking agent, injecting water at temperature t1 into the wide-mouth container after thermostatic water-bathing the wide-mouth container at the temperature t1, and performing a second weighing to obtain m2; 2) preparing the to-be-measured asphalt, so as to obtain the prepared asphalt, and performing a third weighing to obtain m3 after puttingthe prepared asphalt into the wide-mouth container; and 3) fully injecting water at temperature t1 into the wide-mouth container filled with the asphalt after thermostatic water-bathing the prepared asphalt and the wide-mouth container at the temperature t1, and performing a fourth weighing to obtain m4. According to the method, the complex specific gravity bottle method is replaced by a simple and practicable weighing method, the effect of air, sample number and the complex operations on measurement results is reduced, the method is simple in operation, and the accuracy of the measured valueis improved; and the test is simple in process, easy to operate, and the test result is small in error.

The invention relates to a high pressure-resistant and high temperature-resistant material and a preparation process thereof. The high pressure-resistant and high temperature-resistant material comprises the following raw materials in parts by weight: 30-40 parts of polytetrafluoroethylene, 15-20 parts of sodium laurylsulfate, 25-30 parts of chlorinated polyethylene, 15-25 parts of polyurethane, 5-10 parts of titanium dioxide, 5-10 parts of titanium tetrachloride, 8-12 parts of stearic acid, 35-40 parts of acetylacetone peroxide, 15-25 parts of alkane and 30-50 parts of absolute ethyl alcohol. The high pressure-resistant and high temperature-resistant material is high in resistance to the pressure of -0.2MPa to 6.6MPa, resistant to high temperature and low temperature in the temperature range of -200 DEG C to 360 DEG C, small in friction coefficient, high in wear resistance, high in adaptability and excellent in corrosion resistance, oxidation resistance and flame retardance.

A device monitors the operating temperature of at least one set of bearings in a plurality of sets of bearings. The at least one set of bearings is arranged between a shaft and a carrier. The carrier has at least one temperature sensor that senses the temperature of the at least one set of bearings and generates a signal representative of an operating temperature of the at least one set of bearings. The at least one temperature sensor is operatively electrically connected to at least one controller. The controller processes the signal from the temperature sensor, including determining the operating temperature of the respective at least one set of bearings and whether the operating temperature of the respective at least one set of bearings exceeds at least one threshold temperature. The controller memory holds a unique identifier associated with the at least one bearing set.

The invention relates to the technical field of lubricant, in particular to water-based lubricant for paper making. The water-based lubricant for paper making is prepared, by weight, by the following raw materials of 10-20 parts of sulfated castor oil, 8-16 parts of hydroxyl silicone oil, 1-5 parts of hydroxyethyl cellulose, 2-6 parts of hydroxy propyl methyl cellulose, 1-5 parts of methyl cellulose, 5-10 parts of polyphenylene sulfide, 8-15 parts of alkyl glycoside, 0.5-3.5 parts of polytetrafluoroethylene, 1-5 parts of sodium diacetate and 30-40 parts of water. According to the water-based lubricant for paper making, the good lubricating effect is achieved, the friction coefficients of coating paper are greatly reduced, the coating adaptability and the smoothness, glossiness and surface strength of finished paper are improved, no carcinogenic ingredient is contained in the raw materials, and environmental protection is achieved; the water-based lubricant for paper making is mainly applied in paper making coatings of the coating paper.