76 results about "Lubricant" patented technology

A lubricant applying unit includes a lubricant composed of metal salt of fatty acid; an applying member that applies the lubricant on a subject under lubricant application; and a spreading member that forms a thin layer of the lubricant applied on the subject. The spreading member spreads the lubricant in such a manner that a thickness of the thin layer is in a range of 8 nanometers to 12 nanometers.

The invention belongs to the technical field of polymer preparation, and especially relates to a preparation method of a thermoplastic polyurethane elastomer. The method comprises the following steps: 1, putting 1,4-cyclohexyl diisocyanate, polyethylene glycol adipate, 1,4-butylene glycol, a lubricant and a hydrolysis resistance agent in a blender, fully stirring, and fully plastifying in a high-temperature plastifying machine or a high-temperature internal mixer to obtain a thermoplastic polyurethane elastomer matrix; 2, processing an inorganic nanofiller by a silane coupling agent to obtain an modified inorganic nanofiller; and 3, dissolving the thermoplastic polyurethane elastomer matrix in tetrahydrofuran, adding the modified inorganic nanofiller, mechanically stirring, removing tetrahydrofuran, and carrying out film forming to obtain the thermoplastic polyurethane elastomer. Compared with the prior art, the method provided by the invention can effectively increase the heat resistance, the mechanical performances and the ageing resistance of the polyurethane elastomer on the premise that the comprehensive performances of the thermoplastic polyurethane elastomer do not decrease.

A particulate co-processed composition comprising microcrystalline cellulose and at least one sugar alcohol is disclosed. A preferred sugar alcohol is mannitol. The composition has an improved compactability profile, lubricant sensitivity, and ejection profile compared to microcrystalline cellulose and the at least one sugar alcohol, either alone or in combination as a simple dry blend, in the preparation of solid dosage formulations, such as tablets. Tablets comprising the particulate co-processed composition, an active, and, optionally, one or more other excipients, and method for their preparation, are also disclosed.

The invention relates to a low-density high-intensity ceramsite fracturing propping agent and a preparation method thereof. The low-density high-intensity ceramsite fracturing propping agent has a core material body which is composed of the following materials in percentage by weight: 30-40% of bauxite, 10-15% of talcum, 10-12 % of mullite, 12-15% of metakaolin, 6-15% of potassium feldspar, 3-6.5% of titanium dioxide, 1-3% of manganese powder, 3-4.5% of nano calcium carbonate, 2.5-3.5% of iron trioxide and 2.5-3.5% of magnesium orthosilicate; a gel breaker layer is arranged outside the core material body, and the gel breaker layer is sequentially coated with an external coating and a lubricant layer. When in preparation, various materials are firstly ball-milled, sieved and graded, and then matched in different ways; the potassium feldspar and the titanium dioxide both can reduce reaction temperature to a certain extent; the added manganese powder mainly plays a role in catalyzing; the nano calcium carbonate plays a role in reducing density of product; sintering temperature needed by the product is 1250 DEG C; the product is low in density, strong in anti-fracture capacity and high in sphericity; and meanwhile, the production technology is simple and easy to popularize and implement.

A lubricating system for a heavy-duty material processing shears provides lubricant to one of more wear surfaces on one or more wear portions in the shears. The system includes a hydraulic lubricant pump that is actuated by the main hydraulic control system by means of which the jaws of the shears are opened and closed, and may include a sequential valve to distribute lubricant to various wear portions in sequential fashion. The lubricating system may lubricate one or more wear surfaces of the lateral blade stabilizers, primary and secondary blade(s) on the upper and/or lower jaws, pivotal connections between jaws and/or between the upper jaw and the hydraulic cylinder, a forward wear plate, or any other wear portion of the shears. The lubricating system may be retrofitted onto a conventional non-lubricated shears by replacing a conventional upper jaw with an upper jaw with lubricant conduits and a lubricating system.

The invention is suitable for the technical field of high polymer materials and provides polyethylene terephthalate (PET)/liquid crystal polymer (LCP) engineering plastics as well as a preparation method and an application thereof. The PET/LCP engineering plastics comprise the following components in parts by weight: 30-50 parts of PET, 5-20 parts of LCP, 0.2-0.5 part of coupling agent, 30-40 parts of filler intensifier, 0.2-2 parts of nucleating agent, 0.2-0.4 part of antioxidant, 0.2-0.5 part of lubricating agent and 12-20 parts of flame retardant. For the PET/LCP engineering plastics, the LCP is used to modify the crystallization rate of the PET, thus the degree of crystallization of the PET is greatly improved so as to realize the obvious improvement for the performances of the PET/LCP engineering plastics. The preparation method of the PET/LCP engineering plastics has the advantages of low cost and high productivity effect, is simple in operation, and is suitable for industrial production.

The invention discloses a flame-retardant polybutylene terephthalate (PBT) composite material, which is prepared by taking a mixture of montmorillonite and polytetrafluoroethylene as an organic synergistic flame retardant and cooperating with a nitrogen containing flame retardant, and a preparation method thereof. The composite material comprises the following components in percentage by weight: 45-70 percent of polybutylene terephthalate, 1-10 percent of nano-sized organic montmorillonite and 10-30 percent of glass fiber which is subjected to surface treatment, and 10-30 percent of nitrogen containing flame retardant, wherein the nano-sized organic montmorillonite is montmorillonite mineral powder processed by an alkyl intercalating agent; and the glass fiber is alkali-free glass fiber processed by a coupling agent. The preparation method comprises the following steps of mixing the components, antioxidant and lubricating agent; melting, blending and extruding the mixture by a double-screw extruder to obtain the polybutylene terephthalate composite material which has high performance and is synergistically filled by montmorillonite and glass fiber. The composite material is high in modulus, good in toughness, high in temperature resistance and high in CTI value; the processing environment is friendly; the composite material are free of halogen and phosphorus, meets an ROSH (The Restriction of the use of Certain Hazardous Substances in Electrical and Electronic Equipment) principle, and is widely applied to the field of engineering plastics.

The invention discloses a carbon-graphite keeper rolling bearing used for performing protection and antifriction treatment and a manufacturing method of the carbon-graphite keeper rolling bearing used for performing the protection and the antifriction treatment. The carbon-graphite keeper rolling bearing used for performing the protection and the antifriction treatment comprises a bearing outer ring, a bearing inner ring, a rolling body embedded between an outer ring roller path and an inner ring roller path and a carbon-graphite keeper separating the rolling body in the peripheral direction. According to the invention, the carbon-graphite keeper rolling bearing performs surface treatment with the protection and the antifriction as the main purposes on the steel bearing outer ring, the steel bearing inner ring and the rolling body to form a protective antifriction layer on the surface, so that the corrosion resistant property of the steel parts under an oilless state is promoted, and the lubricating capability of the steel parts is improved; during the initial operation of the bearing and before a carbon-graphite transfer lubricant film is fully formed inside the bearing, the work surfaces of the steel parts cannot suffers corrosion due to poor lubrication under the protection of the protective antifriction layer, so that the operating reliability and the service life of the carbon-graphite keeper rolling bearing are greatly improved, therefore, the carbon-graphite keeper rolling bearing has important engineering application value.

The invention discloses an antibacterial and hydrolysis-resistant thermoplastic polyurethane elastomer and a preparation method of the polyurethane elastomer, and belongs to the field of high molecular materials. The polyurethane elastomer is prepared from the following raw materials by mass percentage: 40-70% of hydroxyl-terminated polyhydric alcohol, 20-40% of diisocyanate, 4-15% of micromolecular dihydric alcohol chain extender, 1-5% of hydrolysis stabilizer, 0.1-0.5% of antioxidant, 0.1-0.5% of light stabilizer, 0.1-0.5% of mildewproof agent, 0.5-1% of lubricant and 0.001-0.005% of catalyst. The mildewproof agent is added, so that the antibacterial property of the polyurethane elastomer is improved, and the service life of the polyurethane elastomer is prolonged; the hydrolysis stabilizer is added, so that the problem of degradation of the polyurethane elastomer in a hygrothermal environment is solved; and compared with current commonly used disc method and casting method technologies, a product synthetized by the polyurethane elastomer has the characteristics of stable extrusion, uniform molecular weight and few colloidal crystal point.

The invention belongs to the technical field of mechanical cutting equipment, and particularly relates to an adhesive tape cutting machine, which comprises a support frame, an adhesive tape cutting device, a chip recycling device, an operating platform, a running flat car and a lubricant spraying device. A longitudinal central elongated hole is arranged on the operating platform, the support frame consists of two support bases and a connecting bottom plate, the adhesive tape cutting device comprises a motor, a driving wheel, a transmission V-belt, a driven wheel, a driven shaft and a rotating circular saw blade, the upper half portion of the rotating circular saw blade penetrates through the longitudinal central elongated hole of the operating platform, the running flat car comprises two tracks, a group of traveling wheels, a traversing plate and a group of adjusting sliders, a saw blade penetrating hole is disposed on the traversing plate, two groups of transverse slide grooves are respectively disposed on two sides of the saw blade penetrating hole, and a material sawing machine is arranged on the operating platform. The adhesive tape cutting machine is simple in structure, convenient in operation and low in manufacturing cost, time and labor are saved, the overall dimensions of a finished product processed by the adhesive tape cutting machine are accurate, a cut surface is smooth and flat and is fine in quality, and the safety performance is good.

The invention provides a preparation method of an LCZ696 sustained release matrix tablet. The specific prescription of the LCZ696 sustained release tablet comprises (g/g): 40% of a main drug, 10%-20% of a matrix material, 30%-40% of a diluent, and 5%-10% of a lubricant. The preparation method consists of: sieving the raw and auxiliary materials by a 80-mesh sieve respectively for standby use, firstly mixing the main drug with the matrix material evenly, then adding the diluent and the lubricant and mixing the materials evenly, and performing all powder direct compression, thus obtaining the LCZ696 sustained release matrix tablet. The sustained release tablet is used for medication once every 24h, and the number of medication times is reduced. After oral taking, drugs are released slowly, the blood concentration is stable, and peak valley phenomenon is not generated. Also, the toxic and side effects of drugs are reduced.

A condom, including a non-porous sheath member, having an open end and a rounded end, and shaped to cover the glans and body portion of a penis, and at least one rib having at least one outer portion and at least one inner portion, wherein the at least one outer portion is attachedly fixed to said non-porous sheath member, and wherein an inner cylinder formed by at the at least one inner portion is exclusive from said non-porous sheath member, and including at least one lubricant within the inner cylinder and at least one hole extending from the inner cylinder through the outer portion to provide for flow of the lubricant outwardly from the inner cylinder through the at least one hole pursuant to application of a predetermined pressure, wherein the at least one rib extends at least one of substantially from the open end to the closed end and substantially about a circumference of the non-porous sheath member.

A gas turbine engine has a fan drive turbine for driving a gear reduction. The gear reduction drives a fan rotor. A lubrication system supplies oil to the gear reduction, and includes a lubricant pump to supply an air/oil mixture to an inlet of a deaerator. The deaerator includes a separator for separating oil and air, delivering separated air to an air outlet, and delivering separated oil back into an oil tank. The separated oil is first delivered into a pipe outwardly of the oil tank, and then into a location beneath a minimum oil level in the tank. Air within the oil tank moves outwardly through an air exit into the deaerator. A method of designing a gas turbine engine is also disclosed.

The invention relates to a production method for preparing polyvinyl chloride fibers for hair by a melting method, which belongs to the production field of polyvinyl chloride fibers. The production method is realized through the following steps: (1) mixing PVC resins, a plasticizer, a stabilizing agent, a lubricant, an antioxygen agent, and organic montmorillonite according to a certain proportion; (2) performing melting and spinning by a screw extruder; (3) stretching fibers spun in the step (2), processing the stretched fibers by an extraction agent, further stretching the processed fibers so as to obtain dimensionally stable PVC fibers for hair; (4) recycling the plasticizer separated by distilling residual treating liquids, and the extraction agent with a low boiling point. The residual volume of the plasticizer in the PVC fibers prepared by the production method disclosed by the invention is small, the migration of small molecules during the use of products is effectively avoided, and the contractility of the fibers is greatly lowed, so that the lustrousness of the fibers is more similar to that of human hair. The technological method is simple, the cost is saved, and continuous high-efficiency production can be realized.

The invention discloses a high-impact flame-retardant reinforced PC/ABS alloy material and a preparation method thereof. The PC/ABS alloy material comprises the following components in parts by mass:42.8-68.9 parts of polycarbonate, 20 to 30 parts of ABS, 10 to 20 parts of a glass fiber filler, 0.3 to 0.8 part of a coupling agent, 3.0 to 7.0 parts of a toughening agent, 0.2 to 1.0 part of a flameretardant, 0.1 to 0.5 part of an anti-dripping agent, 0.4 to 1.0 part of an antioxidant, and 0.2-1.0 part of a lubricant. The glass fiber reinforced PC/ABS alloy material has the advantages that theprepared glass fiber reinforced PC/ABS alloy material has the characteristics of high impact resistance and high flame retardancy, meets the requirements of materials in the electronic and electric appliance industry, can improve the mechanical strength of parts, and also can achieve the effects of high impact resistance and high flame retardancy; compared with traditional glass fiber reinforced polycarbonate, the high-impact flame-retardant reinforced PC/ABS alloy material can achieve more ideal rigidity and toughness balance, and has the advantages of simple preparation process, lower cost and easiness in large-scale industrial production.

A bearing system includes a bearing housing configured to house a bearing and enclosing a free volume for receiving a lubricant, a bearing, a pump configured to pump lubricant into the free volume, a shaft in an opening in the housing rotatably supported by the bearing, an exclusion seal between the shaft opening and the shaft that is repeatably and non-destructively shiftable from a sealing state in which it substantially prevents lubricant from leaving the free volume and a release state in which it allows lubricant to escape between the exclusion seal and the shaft. The exclusion seal is caused to shift by increasing and decreasing a pressure in the bearing housing, and the system includes a controller configured to repeatedly shift the exclusion seal by raising and lowering the pressure in the free volume to continuously maintain a lubricating film between the exclusion seal and the shaft.

A rigid structure comprising a lubricant, an absorbent material, and a reinforcing material. The reinforcing material may be comprised of a fibrous and/or a plastic material. The absorbent material is comprised of a fibrous material. The lubricity and wear rate of the rigid structure can be controlled by changing the amount of lubricant contained in the rigid structure in relation to the amount of reinforcing and/or absorbent material contained in the rigid structure. In some embodiments, the lubricity and wear rate of the rigid structure can also be controlled by changing the amount of reinforcing material in relation to the amount of absorbent material.

The invention discloses a novel powder metallurgical gear. The novel powder metallurgical gear is prepared from iron powder, copper powder, molybdenum powder, vanadium powder, nickel powder, yttrium powder, aluminum powder, magnesium powder, cobalt powder, lead powder, steel slag powder, cupola slag powder, ferroalloy slag powder, modified tree ash powder, graphite powder, epoxidized butyl stearate, silicone oil, methylcellulose, aluminum stearate, polyethylene glycol, ethylene bisstearamide, stearic acid, carbon fibers, glass fibers, boron nitride, epoxy propoxy propyl trimethoxysilane, silica, manganese sulfide, acrylate, an inhibitor, a binder, an enhancer, a cutting agent, a lubricant, a coupling agent and a dispersion agent. According to the novel powder metallurgical gear, through the specific composition proportion, the novel powder metallurgical gear is even in overall density, high in density, high in ductility and area percentage reduction, good in wear resistance, strength and hardness, high in material utilization rate and suitable for quickly producing high-performance gears on a large scale.

The invention discloses methanol gasoline. The methanol gasoline is prepared from the following components in percentage by mass: 60-70% of methanol, 6-7% of aromatic hydrocarbon, 40-46% of naphtha, 0.004-0.0043% of sodium hydroxide, 0.3-0.33% of corrosion inhibitors, 0.2-0.23% of antioxidants, 0.5-0.53% of lubricants and 2-2.2% of stabilizers. The methanol gasoline has the following beneficial effects: (1) additives adopt raw materials with abundant sources, stable performance and clean emission after combustion, the mixing process is simple, the production cost is low, and the production process is free emission of three wastes; (2) the environment can be effectively protected, the fuel cost can be reduced, and the petroleum resource can be saved; and (3) the methanol gasoline has good protection effects on power systems and oil supply systems of vehicles. Actual test and inspection of the methanol gasoline show that power performance, lubrication performance, corrosion resistance, oxidation resistance, low-temperature ignition and oil consumption of the methanol gasoline are superior to that of 92# national 5 standard gasoline. The methanol gasoline fuel is simple in composition, wide in raw material resources, low in production cost, high in combustion performance, long in storage time, free of stratification and free of deterioration, and is worth of mass production, popularization and application.

The invention discloses aging-resistant polyvinyl chloride plastic. The aging-resistant polyvinyl chloride plastic is prepared from components in parts by weight as follows: 50-70 parts of polyvinyl chloride resin, 30-50 parts of calcium carbonate powder, 3-6 parts of a plasticizer, 2-4 parts of a stabilizer, 2-5 parts of an ACR aid, 1-2 parts of stearic acid, 1-3 parts of nano titanium dioxide, 3-5 parts of an ultraviolet light absorber, 2-3 parts of an antioxidant, 1-2 parts of a coupling agent and 0.5-4 parts of a colorant. The invention further discloses a preparation method of the aging-resistant polyvinyl chloride plastic. Filler, a lubricant, the colorant and other additives are stirred with polyvinyl chloride at the high speed, so that all the additives are uniformly mixed, and a plastic product is uniformly colored and has good antibacterial and anti-aging effects. Meanwhile, the stirring temperature is lower than 100 DEG C, the mixture can be directly added to an extruder or an injection molding machine after stirring, a high-temperature granulation process is omitted, the production process is simplified, and decomposition polyvinyl chloride and release of hydrogen chloride gas can be reduced.

The invention discloses a nickel alloy automobile starting motor planetary gear and a manufacturing method thereof. The nickel alloy automobile starting motor planetary gear is prepared from, by mass, 91-94% of diffusion alloy powder, 0.5-0.8% of C element powder, 0.5-0.9% of a paraffin lubricant and 4.3-8.0% of superfine nickel powder. According to the technical scheme, direct sintering and hardening of a high-nickel alloy powder metallurgy material are adopted, and the defects that in the prior art, after a planetary gear is sintered, deformation is caused through thermal treatment, the product precision cannot meet the requirement and a starting motor is high in noise and does not resist to abrasion are overcome successfully; due to the fact that no thermal treatment is needed, the gear precision is improved, a high energy consumption procedure is omitted, the cost is lowered, the product batch consistency is ensured, and batch production is easy to achieve.

Tubing everting apparatus, assemblies, and methods are disclosed herein. The tubing everting apparatus include a pressure chamber that defines an internal volume, a liner inlet port that is configured to receive a flexible tube liner into the internal volume, an inlet sealing structure that is configured to resist fluid flow therepast from the pressure chamber, and a liner outlet port that is configured to permit the flexible tube liner to extend from the internal volume. In some embodiments, the apparatus include a lubricator that is configured to apply a lubricant to the flexible tube liner. In some embodiments, the apparatus include a non-deflation valve that is configured to selectively transition between open and closed states. The assemblies include the apparatus and a cart that includes a lubricant reservoir. The methods include methods of operating the apparatus.

Alkylphosphorofluoridothioates containing alkyl groups of greater than four carbons which exhibit significantly lower wear volume compared to ZDDP, methods of making same with high yields, and methods of using same as lubricant additives.