390results about How to "Act as a lubricant" patented technology

The invention discloses a polycarboxylate water reducer. The modified polycarboxylate water reducer is prepared by mixing a pulp of a white clay of a papermaking waste, heating, evenly mixing with a corn straw, then adding lauryl sodium sulfate, stirring, drying, and extruding into blocks to obtain a block material for later use; hydrolyzing, and adjusting the pH value of a straw hydrolysate to 6.0-7.0 with CaO to obtain a hydrolysate for later use; drying, oxidizing and sulfonating the hydrolysate, adding into a polycarboxylate-type water reducer, stirring evenly, and treating through ultrasonic waves for 1-2 hours. The papermaking waste is used to manufacture the water reducer, the waste is well turned into the wealth, the strong base in the papermaking waste pretreats the corn straw, so that the corn straw is better pickled for hydrolysis; the substances like cellulose produced after the hydrolysis of the corn straw improve the water reducing effect of the water reducer after being oxidized and sulfonated, meanwhile, the polycarboxylate water reducer also plays a role in lubricating the concrete.

The invention relates to a preparation method of a porous silicon nitride ceramic material with a spherical pore structure. The method comprises the following steps: uniformly mixing silicon nitride powder with a mono-dispersed polymethyl methacrylate (PMMA) spherical pore forming agent to prepare a stable slurry, preparing microsphere powder (the silicon nitride powder and/ the spherical pore forming agent are uniformly dispersed in the above microspheres) with good fluidity and regular shape through a spray drying process, carrying out a direct cold isostatic pressing technology on the microsphere powder to prepare a blank with uniform density, carrying out an optimized batching technology to completely remove the pore forming agent and other organic matters, and sintering in nitrogen pressure atmosphere to obtain the complete non-crack porous silicon nitride ceramic material. The porous silicon nitride ceramic material prepared through the method has the advantages of uniform space distribution, uniform size spherical pores, high bending strength and small discreteness.

The invention relates to a nanometer aluminum oxide/paraffin compound phase change heat storage material, preparation thereof and application thereof. The compound phase change heat storage material is the evenly stabilized compound formed by compounding nanometer aluminum oxide and paraffin. The phase change temperature of the compound phase change heat storage material is adjusted to near the 48 DEG C; thermal analysis tests show that the enthalpy of phase change is big, that the enthalpies of the solid-solid phase change and the solid-liquid total phase change are over 150J/g and that the coefficient of thermal conductivity of the compound phase change heat storage material is greatly increased than that of the mother substance. Thus, the compound phase change heat storage material is widely applied in civilian and military areas such as solar energy utilization, waste heat recovery, intelligent automatic air-conditioning buildings, glass greenhouses, phase change energy storage type air conditioners and constant temperature of electrical appliances.

A heavy-duty diesel engine split type rocker arm brake mechanism for a commercial vehicle comprises a rocker arm body, a swing mechanism and a hydraulic drive system; the rocker arm body is mounted on a rocker arm shaft through a main mounting hole, the swing mechanism comprises a swing head, a first adjusting bolt and a rolling column, the swing head is mounted on the rocker arm body, a sheet-shaped spring is arranged at the bottom of the swing head, and is pressed on the bottom of the rocker arm body, a ball head of the first adjusting bolt is mounted in a ball socket in an elephant foot shape, the hydraulic drive system comprises a hydraulic plunger with a return spring sleeved, a second adjusting bolt in contact with the hydraulic plunger and a rocker arm cam in threaded connection with the hydraulic plunger, the hydraulic plunger is mounted in a drive cavity of the rocker arm body, the rocker arm cam makes contact with the rolling column, a brake hydraulic oil way communicated with the main mounting hole, the drive cavity and a swing arm shaft hydraulic oil hole is arranged in the rocker arm body, and the heavy-duty diesel engine split type rocker arm brake mechanism is high in reliability, low in cost, high in lightweight degree, simple in structure, convenient to assemble and maintain and good in brake effect.

The invention discloses a machine tool, comprising a machine tool body, a drive device, a clamp mechanism and a processing mechanism, wherein the drive device, the clamp mechanism and the processing mechanism are mounted on the machine tool body; the processing mechanism comprises a drill rod; one end of the drill rod is provided with a first connecting structure capable of mounting a drill bit; the output shaft of the drive device is in drive connection with one end, far away from the first connecting structure, of the drill rod and drives the drill rod to rotate; the drill rod is of a hollow structure; a water inlet is formed in the rod wall of one end, far away from the first connecting structure, of the drill rod; at least one water outlet is formed in the rod wall of one end, close to the first connecting structure, of the drill rod; a scrap placing disk is connected to the machine tool body and is located below the clamp mechanism; the bottom of the scrap placing disk is a filter screen; a liquid collecting groove is arranged below the scrap placing disk; a water pump is arranged at one end of the liquid collecting groove; the water inlet pipe of the water pump is communicated with a pipeline in a liquid collecting groove body; the water outlet pipe of the water pump is connected with a water inlet hose of the drill rod.

The invention discloses a crane, comprising an outer barrel, an inner barrel and a cantilever; the inner barrel is sleeved in the outer barrel, the cantilever is arranged at the top end of the inner barrel, a rubber washer is sleeved on the inner barrel; a hydraulic driving system is arranged at the bottom of the outer barrel, a shock pad is arranged below the hydraulic driving system; a lubricating oil storage tank is connected to the top end of the outer barrel; a fixed base is arranged at the bottom of the shock pad and is fixedly connected with the ground by bolts; a triangular reinforcing rib is arranged above the inner barrel, the upper parts of the inner barrel and the triangular reinforcing rib are connected with the cantilever; the cantilever comprises a stop pin, a telescopic boom, a wire cable, a sliding mechanism, a telescopic motor, a reset spring and a weight box; and the stop pin is arranged at the right front end of the telescopic boom, the left end of the telescopic boom is connected to the inside of the cantilever in a sliding way, and the left end of the cantilever is provided with the weight box. The crane can prevent dust and abrasion, is good in sealing and lubricating effect, conforms to engineering mechanics, and can save energy.

The invention discloses a rubber and metal framework bonding method, which is characterized by comprising six steps including preparation of rubber, cleaning of a metal framework, drying of the metalframework, covering of primer, covering of surface glue and vulcanization. Through the above method, bonding strength between rubber and the metal framework can be remarkably enhanced, and it is ensured that rubber has good processability.

The invention relates to ink and in particular relates to water-based nano pigment ink for textile printing. According to the formula, the ink mainly comprises the following components in parts by weight: 12.4-18.6 parts of water-based pigment slurry, 9.5-14.9 parts of a water-based resin, 5.3-9.6 parts of a quick-dry type solvent, 5.4-9.8 parts of a moisturizing solvent, 0.5-2 parts of a surfactant, 0.05-0.2 part of an antibacterial agent and 50.9-65.55 parts of deionized water. According to the ink disclosed by the invention, textiles do not need to be preheated and heated, and the ink refers to healthy and environment-friendly water-based nano pigment ink which can be directly printed on the textiles. Moreover, a digital ink-jet printing textile prepared by the ink has excellent color fastness to washing, color reduction rate and excellent handfeel.

The invention provides a spraying device of a dish washing machine. The spraying device comprises a first sprayer and a second sprayer, wherein the first sprayer comprises a first water storage cavity and a first spraying surface; the second sprayer is rotationally arranged on the first spraying surface; the second sprayer is a quadrilateral sprayer, and comprises a second water storage cavity, a second spraying surface and a plurality of second spraying holes; the second spraying holes are formed in the second spraying surface, and are communicated with the second water storage cavity; the first water storage cavity is communicated with the second water storage cavity. The spraying device has the advantage that the second sprayer is the quadrilateral sprayer, so that the distribution of sprayed water flow is more uniform, the blind area of washing is reduced, the effective washing area is increased, and the washing efficiency of the spraying device of the dish washing machine is greatly improved.

The embodiment of the invention discloses an inhaul cable sleeve for an automobile. The inhaul cable sleeve comprises a corrugated lining tube, a flat steel belt, a steel wire layer and a plastic coating layer in turn from inside to outside, wherein the corrugated lining tube has a hollow tubular structure; the inner surface of the corrugated lining tube is the surface with continuous corrugated bulges; the flat steel belt has a flat banded structure; the flat steel belt is spirally wound on the outer surface of the corrugated lining tube; a bare tube of the inhaul cable sleeve for the automobile is formed by the flat steel belt and the corrugated lining tube; the steel wire layer is composed of a plurality of steel wires; the steel wires in the steel wire layer are uniformly distributed on the outer surface of the bare tube; and the plastic coating layer covers the outermost layer of the tubular structure formed by the corrugated lining tube, the flat steel belt and the steel wire layer. By adopting the inhaul cable sleeve for the automobile provided by the invention, a contact area of a lining tube and a steel wire rope is reduced, and a frictional force caused by the relative motion of the lining tube and the steel wire rope, namely, an operating force during the working process of an inhaul cable of the automobile, is reduced, so that the force-transferring efficiency of the inhaul cable of the automobile is increased and the noise caused by the vibration of the steel wire rope and the lining tube is reduced.

A rolling type precision seeding device for small and medium-sized seeds comprises a push rod and a seed box; a spindle is mounted at the front end of the push rod; the seed box is rotationally connected onto the push rod with the spindle used as the axis; multiple seeding devices are mounted on the circumference of the seed box; and each seeding device comprises an arc-shaped plate, a seed bin, a seed receiving groove and a duck mouth, the arc-shaped plate is movably connected with the seed box, a seed taking spoon is mounted on the inner arc surface of the arc-shaped plate and is movably connected with the arc-shaped plate, a through hole is formed in the arc-shaped plate, one end, located on the outer arc surface of the arc-shaped plate, of the through hole communicates with the inside of the duck mouth, a fixed piece in the duck mouth is fixedly connected with the arc-shaped plate, the other end of the through hole communicates with a seed outlet in one end of the seed bin, a seed inlet is formed in the side surface of the other end of the seed bin and communicates with one end of the seed receiving groove, the groove opening of the seed receiving groove is opposite to the seed taking spoon, and gaps are formed between the groove opening of the seed receiving groove and the seed taking spoon and between groove opening of the seed receiving groove and the arc-shaped plate. The precision seeding device is high in mechanical seeding accuracy, good in quality and uniform in spacing, seeds, manpower and time can be saved, and the emergence rate can be guaranteed.

The invention discloses a bearing seat capable of achieving automatic lubricating oil adding applied in the technical field of bearings. The bearing seat comprises a base. An outer ring is arranged inthe middle of an inner chamber of the base. An inner ring is arranged in an inner chamber of the outer ring. The top of the base is provided with an oil storage chamber. A piston block is arranged inthe middle of an inner chamber of the oil storage chamber. A reset spring is arranged on the left side wall of the piston block. A pull rod is connected to the piston block in a penetrating and inserted manner. A stop block is arranged at the right end of the pull rod. An oil nozzle is arranged at the right side of the top side wall of the oil storage chamber. An oil conveying channel is formed in the right side of the bottom side wall of the oil storage chamber. An oil inlet matched with the oil conveying channel is formed in the right side of the top side wall of the outer ring. A fixing device matched with the pull rod is arranged at the left side of the top side wall of the base. According to the bearing seat, the reset spring expands, the piston block moves rightwards and pushes, andthe pushing force applied to lubricating oil is increased; the lubricating oil in the oil storage chamber is pushed into an inner chamber of an annular cavity through the oil conveying channel and the oil inlet, and thus, the lubricating effect is achieved; the oil inlet can be effectively prevented from being blocked; and normal work of the bearing seat is guaranteed.

The invention discloses a full cross-section rock tunnel heading machine knife flywheel for assisting to break rock with burning and water-shocking. The full cross-section rock tunnel heading machineknife flywheel for assisting to break the rock with the burning and water-shocking comprises a rock tunnel heading machine knife flywheel body, and the rock tunnel heading machine knife flywheel bodyis provided with side hobs, center blades, positive hobs, ballast outlets and ballast scraping buckets. Multiple high-temperature flame nozzles and low-temperature water nozzles are evenly arranged onthe end face of the knife flywheel body, and the arrangement height of the high-temperature flame nozzles and the low-temperature water nozzles is lower than the height of the envelope surfaces of the positive hobs; and the high-temperature flame nozzles communicate with a combustible gas pipeline and an oxygen pipeline, and the low-temperature water nozzles communicate with a water supply pipeline. The problems of low rock-breaking and tunnelling efficiency and serious hob wear in the process of breaking hard rock by rock tunnel heading machine in the prior art is solved, the initiation andthe extension of cracks in the rock is promoted based on the principle of thermal expansion and thermal contraction the thermal splitting, so that rocks are easy to break, the rock breaking efficiencyof hobs is improved, the wear of hobs is reduced, and the construction cost is reduced.

The invention discloses a high-performance concrete organic-inorganic composite additive. The composite additive comprises the following components by weight percent: 30-90% of active powder, 0-10% of sodium silicate and 5-70% of surface active agent. The additive disclosed by the invention is suitable for long-distance transportation; by using the additive, the compaction is increased, the durability is improved, and concrete can obtain high early strength. The additive is especially suitable for steaming and improvement of early strength.

The invention relates to a water-based human body lubricating liquid containing a compound antibacterial agent, which adopts water-soluble chlorhexidine, nano-silver complex antibacterial liquid, Cnidium chinensis extract, propolis extract, honeysuckle extract, and aloe extract , purslane extract, glycerol, propylene glycol, preservatives, macromolecular mucopolysaccharide, carbomer, 2-sodium acrylate homopolymer, hydroxyl ethyl cellulose, pH regulator and sterilized deionized water made. The water-based human body lubricant not only has the functions of lubricating, nourishing and caring, but also is mild in nature, has no adverse reaction to the human body, is healthy and environmentally friendly, and is easy to clean afterwards, not greasy, and has good anti-inflammatory and antibacterial functions, and its antibacterial function does not affect Beneficial bacteria. This water-based body lubricant can be used in couples during sex to help with vaginal dryness or over condoms.

The invention discloses a refrigerating unit which comprises an oilless centrifugal compressor, an evaporator and a condenser, wherein a refrigerant circulating flow path is composed of the oilless centrifugal compressor, the evaporator and the condenser. The oilless centrifugal compressor comprises a motor, a plurality of sets of bearings and impellers. A rotor shaft of the motor is sleeved with the bearings. The impellers are arranged on the rotor shaft and driven by the rotor shaft to rotate. The refrigerating unit further comprises a refrigerant pump and a control device. The refrigerant pump is used for conveying a refrigerant. An outlet of the refrigerant pump corresponds to each bearing so as to supply the refrigerant serving as lubricating liquid to each bearing. An inlet of the refrigerant pump is connected with at least one of the evaporator and the condenser. The control device is connected with the refrigerant pump and the oilless centrifugal compressor. According to the refrigerating unit, a function of lubricating the bearings can be achieved, so that the service life of the bearings is prolonged; and in addition, the structure is simple, and a control system of the refrigerating unit is simplified, so that the failure rate of the control system is decreased, and the cost the oilless centrifugal compressor is reduced.

The invention relates to an exercise device, in particular to a foot step type double-arm coordination exercise recovery device for medical treatment. The foot step type double-arm coordination exercise recovery device for the medical treatment is more in exercise pattern and high in exercise enjoyment. According to the technical scheme, the foot step type double-arm coordination exercise recoverydevice for the medical treatment comprises a base, a first machine frame, a universal seat, a universal ball, a rotating disc, handles, a first supporting rod, a nut, a backup plate, a sliding rail,a sliding block, a cushion, a first bearing seat and the like. The first machine frame is arranged on the left side of the top of the base, the universal seat is arranged at the top of the first machine frame, the universal ball is arranged in the universal seat in a matched mode, the rotating disc is arranged on the universal ball, and two handles are arranged on the rotating disc. The foot steptype double-arm coordination exercise recovery device for the medical treatment enables a user to place feet on a pedal and rotates the rotating disc while performing arm exercise, thereby performingleg exercise by stepping on the pedal, and thus enables the user to perform leg exercise while performing the arm exercise.

Disclosed are a rotary compressor and its manufacturing method. The rotary compressor comprises a motor and a compressing mechanism which are arranged inside a housing. The compressing mechanism comprises a cylinder with a compression chamber and a piston which rotates eccentrically inside the compression cavity. The cylinder is also provided with a sliding plate groove for holding a slide plate. One end of the slide plate is propped to the periphery of the piston. The slide plate comprises a slide plate metal matrix and a slide plate ceramic composite layer arranged on the slide plate metal matrix. The slide plate ceramic composite layer is arranged at one side, two sides or distal end of the slide plate metal matrix. The slide plate metal matrix is a cast iron matrix or steel matrix. The slide plate ceramic composite layer comprises a porous slide plate ceramic layer and metal embedded in the slide plate ceramic layer. The slide plate ceramic layer is an alumina layer, oxygen ambient silica layer or zirconia layer. The rotary compressor provided by the invention has characteristics of simple and reasonable structure, flexible operation, low manufacturing cost, high surface hardness, good wear resistance, good impact toughness and long service life.