38results about How to "Effectively fills the void" patented technology

The invention relates to two-component epoxy glue and a preparation method thereof. The two-component epoxy glue comprises a component A and a component B, and the component A comprises epoxy resin, a toughening agent, a liquid flame retardant, a powder flame retardant, a diluent, an antifoaming agent and reinforcing fillers; the component B comprises an aliphatic amine curing agent, polyether amine, polyamide 650 and a curing accelerator. According to the two-component epoxy glue and the preparation method thereof, screening is conducted on the components of the epoxy glue, performance complementation of the components is achieved, a two-component epoxy glue with excellent comprehensive performance is formed through synergetic cooperation, the toughness, the anti-stripping strength and the anti-impact performance of the epoxy glue are significantly improved, the flame-retardant performance can reach the grade UL94-V0, the operable time is more appropriate, the curing time is short, and the continuous production can be achieved.

The invention discloses high-compressive-strength recycled concrete and a preparation process thereof. The high-compressive-strength recycled concrete comprises the following components in parts by weight: 300-420 parts of reinforced recycled aggregate, 25-35 parts of recycled micro powder, 100-200 parts of natural coarse aggregate, 120-200 parts of natural fine sand, 120-170 parts of cement, 50-130 parts of fly ash, 50-120 parts of mineral powder, 6-12 parts of a waterproof agent, 0.8-2.2 parts of an air entraining agent, 120-160 parts of water and 20-35 parts of polypropylene mixed filler. The preparation process comprises the following steps: S1, weighing corresponding amounts of cement and natural fine sand, putting the cement and the natural fine sand into a stirrer, and stirring for40-60 seconds; S2, weighing the regenerated micro-powder, the fly ash, the mineral powder and the polypropylene mixed filler according to corresponding proportions, adding the weighed materials into the stirrer in the step S1, continuing to stir and mix for 30-40 seconds, adding half of the water according to the proportion, continuing to stir for 30-40 seconds, and mixing to obtain mortar with uniform color; and S3, adding the rest half of the water, the reinforced recycled aggregate, the natural coarse aggregate, the air entraining agent and the waterproof agent according to the proportion in the step S2, and continuously stirring for 60-80 seconds until the mixture is uniform.

The invention relates to electronic paste and a preparation method of the electronic paste. The electronic paste comprises, by weight, 30-70% of silver-plated copper powder or silver-plated nickel powder, 0-40% of nano-silver powder, 3-15% of organic solvent, 5-12% of macromolecule resin and 2-10% of inorganic additive. The preparation method of the electronic paste comprises the steps of (1) weighing the macromolecule resin and the organic solvent in proportion, placing the macromolecule resin and the organic solvent into a container, placing the container into a thermostatic water bath, evenly mixing the macromolecule resin and the organic solvent to obtain an organic carrier, and (2) weighing the silver-plated copper powder or the silver-plated nickel powder, the nano-silver powder and the inorganic additives in proportion, adding the silver-plated copper powder or the silver-plated nickel powder, the nano-silver powder and the inorganic additives to the organic carrier obtained in the step (1), carrying out grinding and rolling to meet the requirement of the fineness to achieve even distribution of the solid-phase powder in the organic carrier. The preparation method of the electronic paste is simple, high in production efficiency and low in cost. When the obtained electronic paste is used for printing a fuse link structure of a surface-mount fuse, and compared with traditional silver paste, the pulse resistant capacity is greatly improved.

The invention discloses a well cementation process suitable for a gas field. The well cementation process comprises the following steps of injecting drilling fluid into a well to perform a pressure-bearing test, and performing leaking stoppage for a leaked stratum if leakage occurs in the well; driving a sleeve to the well bottom, and filling mud into a position between the well wall and the sleeve; sequentially injecting prepad fluid, first well cementation fluid and second well cementation fluid into the sleeve, then, starting to release a rubber plug, and utilizing the rubber plug to scrapeoff the first well cementation fluid and the second well cementation fluid on the inner wall of the sleeve; and injecting plug pressing fluid into the sleeve until touching and pressing happen, and ending well cementation. The pressure-bearing test is performed before the sleeve is driven in, and leakage prevention and stoppage are performed on the leaked stratum, so that pressure-bearing abilityof a well shaft can be improved.

The invention relates to a sagger for sintering a positive electrode material of a lithium battery based on magnesium aluminate spinel sol and a preparation method of the sagger. According to the technical scheme, the preparation method comprises the steps of mixing and stirring the following components of, by weight, 20%-25% of magnesium nitrate, 15%-20% of aluminum nitrate and 60%-61% of industrial alcohol to obtain magnesium aluminate spinel sol; mixing the following components of, by weight, 25%-30% of mullite, 25%-30% of cordierite. 25%-30% of andalusite, 3%-7% of the magnesium aluminatespinel sol, 4%-7% of Guangxi white mud and 2%-7% of silicon micro powder to obtain a mixture; carrying out mechanical pressing on the mixture, drying the mixture at the temperature of 90-110 DEG C, and then carrying out heat preservation at the temperature of 1,300-1,400 DEG C for 3-4 hours to obtain the sagger for sintering the positive electrode material of the lithium battery based on the magnesium aluminate spinel sol. The preparation method has the characteristics of simple process, short production period, easy industrial production and high yield; and the prepared sagger is high in strength, long in service life, and good in thermal shock resistance and corrosion resistance.

The invention discloses a method for reinforcing a soft foundation through electrified sol in combination with vacuum-electroosmosis. According to the method, the electrified sol, namely the TiO2 sol,is electrochemically injected into a to-be-reinforced soft foundation area; part of free water is drained through the vacuum prepressing technology at the early stage; the electrified sol is dehydrated and precipitates, so that solid particles are separated out; due to the fact that the TiO2 serves as a nanometer material and is quite small in particle diameter, and holes among soil particles canbe effectively filled; and in addition, when drainage consolidation is conducted at the later stage through an electroosmosis method, the electrified TiO2 nanometer material moves ceaselessly in a soil body under the effect of a direct-current electric field without disturbing the soil body, drainage of the free water in the soil body is promoted, and the drainage consolidation effect is effectively improved. According to the method, the electrified sol and vacuum-electroosmosis are organically combined together, supplement each other and achieve mutual promotion; the holes among the soil particles are filled with the solid particles separated out of the sol through vacuum prepressing; in addition, electroosmosis efficiency can be effectively improved; drainage of the free water in soil is promoted; and the drainage consolidation effect is greatly improved.

The invention provides an underwater wet-method repairing device and method for concrete pile defects. The repairing device comprises side molds and bottom molds, wherein the side molds are used for enclosing a concrete pile, and the bottom molds are used for sealing the concrete pile and the bottom parts of the side molds, and the bottom molds are arranged at the bottom parts of the side molds. The underwater wet-method repairing device for the concrete pile defects has the advantages of being convenient to install, capable of being repeatedly used and high in repairing efficiency.

The invention relates to the technical field of synchronous grouting. The invention relates to a rubber particle anti-seismic synchronous grouting material. The synchronous grouting material is prepared from the following raw materials in parts by weight: 70 to 90 parts of cement, 595 to 685 parts of aggregate, 350 to 450 parts of water, 200 to 300 parts of fly ash, 80 to 110 parts of special soiland 10 to 12 parts of additive, wherein the aggregate is rubber particles or a mixture of the rubber particles and sand. The synchronous grouting material disclosed by the invention is low in elasticity modulus, can effectively fill gaps of duct pieces, plays due waterproof and anti-settling roles during tunnel construction, and can effectively absorb energy and provide buffer for the duct pieceswhen earthquake disasters happen, thereby playing a shockproof and anti-seismic role.

The invention discloses a corrosion-resistant CFRP-high-strength steel composite pipe marine aggregate seawater concrete composite column, and belongs to the technical field of marine construction engineering structures. The corrosion-resistant CFRP-high-strength steel composite pipe marine aggregate seawater concrete composite column is composed of marine aggregate seawater concrete, a high-strength steel pipe and CFRP cloth, wherein the CFRP cloth is pasted on the inner wall and the outer wall of the high-strength steel pipe to form a CFRP-high-strength steel composite pipe, and the CFRP-high-strength steel composite pipe is filled with the marine aggregate seawater concrete. The composite column can effectively prevent chloride ions from corroding the inner wall and the outer wall of the high-strength steel pipe, the related bearing index and durability of the high-strength steel pipe marine aggregate seawater concrete can be improved, and the service life of the high-strength steel pipe marine aggregate seawater concrete is prolonged.

The invention belongs to the technical field of processing of a wear-resistant fishing net and particularly relates to a processing method capable of improving weather resistance of the wear-resistantfishing net. The processing method comprises preparation of a polyester type polyurethane prepolymer, preparation of reaction materials and preparation of filaments. Compared with the prior art, theprocessing method has the advantages as follows: the weather resistance and anti-friction stability of the fishing net can be improved due to preparation of the reaction materials, the anti-friction creep property of the fishing net can be improved due to addition of the polyester type polyurethane prepolymer, the reaction materials can effectively fill in gaps of a composite material, the wear resistance of the composite material can be improved, the storm resistance of the fishing net can be further improved by terminated isocyanate, the fishing net can keep good mechanical performance undersunlight and has certain antibacterial property and antifouling property, and the use benefits of the fishing net can be increased.

The invention relates to the field of asphalt waterproof coiled materials, and discloses a waterproof coiled material prepreg composition, a waterproof coiled material prepreg and a preparation method and application thereof. The composition contains more than two of the following components which are stored in a mixed manner or stored independently: compound asphalt, a softening agent and an inorganic filler, wherein the compound asphalt is a combination of matrix asphalt and hard asphalt in a content weight ratio of 1: (0.10-0.35), and the softening agent is at least one of polyethylene wax and polar amide wax. When the prepreg prepared from the composition provided by the invention is applied to a waterproof roll, the requirement for oil permeability of the waterproof roll can be met, and the waterproof roll has good adhesive property.

The invention discloses a middle-heavy refractory castable in working linings of industrial furnaces and a preparation method of the refractory castable. The refractory castable comprises the following components in mass percentage: 10-30% of complex-phase hollow balls with a particle size of 6 mm, 15-35 % of complex-phase hollow balls with a particle size of 4 mm, 10-25% of mullite with a particle size of 1-0 mm, 5-25% of kyanite with a particle size of 180 mesh, 5-15% of mullite powder with a particle size of 200 mesh, 5-10% of pure calcium aluminate cement, 3-8% of alumina micro powder with a particle size lower than 5 micron, 3-8% of silicon dioxide micro powder with a particle size lower than 1 micron and 0.1-0.2% of an additionally-added water reducing agent. The refractory castable provided by the invention has excellent characteristics of a long-term high usage temperature, moderate volume density, a low thermal conductivity coefficient and good thermal shock stability, can replace conventional heavy refractory castable for direct use in working linings of industrial furnaces, and has a very positive effect on energy saving and consumption reducing of industrial furnaces, and on decrease of usage amounts of lining materials and thickness of linings in industrial furnaces, and the like.

The invention provides a preparation method of a reactive normal-temperature asphalt mixture, and relates to asphalt preparation. The preparation method of the reactive normal-temperature asphalt mixture comprises the following steps: S1, taking imidazoline and unsaturated fatty acid according to a molar ratio of 0.5: 2.5, and heating the unsaturated fatty acid to 75-80 DEG C; a proper amount of emulsifier is doped into asphalt, so that the viscosity of the asphalt is reduced, and the adhesive force of the asphalt and aggregate is increased, so that the cold patch asphalt mixture can be constructed at normal temperature; water is added to promote the chemical reactant to react with effective components in the emulsifier, the initial strength of a repaired pavement can be improved in a short time, meanwhile, due to volume expansion of a reaction product, gaps in a mixture are effectively filled, the gaps in the mixture are compact and firm, the pavement strength is improved, and due to the fact that the reaction is an exothermic reaction, the pavement strength is improved. The water evaporation is accelerated, the pavement curing time is shortened, and the construction progress is accelerated.

The invention provides modified nylon powder and a preparation method and application thereof.The modified nylon powder is mainly prepared from 50 wt%-95 wt% of nylon resin, 2 wt%-45 wt% of surface-functionalized core-shell particles and 0.1 wt%-5 wt% of antioxidants, and the average particle size of the nylon resin is 35-95 micrometers. The surface-functionalized core-shell particles are obtained by carrying out hydrolysis reaction and amination reaction on core-shell particles, and the surface-functionalized core-shell particles are selected from core-shell particles with the amino grafting rate of 1-25%; and the particle size of the core-shell particle is 100-200nm, and the core-shell particle comprises an inner core and an outer shell. The nano core-shell particles are introduced into the nylon resin, so that the void ratio of the nylon resin is remarkably reduced.

The invention discloses a colorectal cancer patient multi-gene multi-factor quantitative drug delivery system and a use method thereof, and belongs to the technical field of medical equipment. A colorectal cancer patient multi-gene multi-factor quantitative drug delivery system comprises a base, a drug box is arranged on the base, a drug outlet cylinder is rotatably arranged at the bottom of the drug box and connected with a handle through a connecting rod, a plurality of drug bottles for storing drugs are arranged on the inner wall of the drug box, and anti-loosening mechanisms are arranged in the drug bottles. A medicine outlet groove used for containing medicine in a medicine bottle is formed in the medicine outlet barrel, an adjusting assembly used for adjusting the dosage of the medicine is arranged in the medicine outlet groove, and a through hole used for communicating the medicine bottle with the medicine outlet groove is formed in the medicine box. The quantitative medicine taking device can accurately take medicine in a quantitative mode, is suitable for pill-shaped medicine and granular medicine of different sizes, achieves individualized accurate medicine taking of a patient suffering from colorectal cancer, and meanwhile can effectively remind the patient when the medicine amount is insufficient.

The invention provides a basic magnesium oxysulfate composite cementing material double-doped with fly ash and mineral powder. The basic magnesium oxysulfate composite cementing material is prepared from the following raw materials in parts by weight: 49.7 to 66.6 parts of light calcined magnesia powder, 24.4 to 32.8 parts of magnesium sulfate heptahydrate, 4 to 19.1 parts of fly ash, 2 to 12.7 parts of mineral powder and 0.5 to 0.6 part of citric acid. According to the invention, the fly ash and the mineral powder are used as raw materials to prepare the magnesium oxysulfate composite cementing material, so that the preparation cost of the cementing material is reduced, resources are saved, and meanwhile, the application of the magnesium oxysulfate cement in the market is expanded. In addition, the prepared cementing material can effectively improve the mechanical strength of cement, reduce volume shrinkage and improve the volume stability and water resistance of the cement.

The invention discloses an equipment health analysis and fault diagnosis system based on artificial intelligence, and belongs to the technical field of fault diagnosis. An equipment health analysis and fault diagnosis system based on artificial intelligence comprises an equipment main body, a diagnosis system is arranged in the equipment main body, a display screen and keys are arranged on the upper side and the lower side of the equipment main body respectively, a first air bag is arranged at the corner of the equipment main body, and a first elastic element is arranged on the equipment main body; a clamping plate is connected to the end, away from the equipment body, of the first elastic element, an anti-attaching mechanism is arranged in the clamping plate, a second air bag is arranged on the clamping plate, an exhaust mechanism is arranged between the first air bag and the second air bag, a guide groove is formed in the equipment body, and a curlable blocking piece used for shielding a display screen is movably connected into the guide groove; the fault diagnosis instrument can be effectively protected, the fault diagnosis instrument can be prevented from falling off from the hand when the fault diagnosis instrument is held by a hand for use, and the use comfort and practicability of the instrument are improved.