38results about How to "Rupture will not" patented technology

The invention discloses a silicon dioxide gel microencapsulated phase change energy storage material and a preparation method thereof. The preparation method is characterized by comprising the following steps: melting a phase change energy storage material in ethanol water solution at a temperature of between 30 and 90 DEG C, emulsifying under high-speed stirring, adding alkaline solution to ensure that the pH value of a reaction system is between 8 and 12, dropwise adding organic silicon oxide which accounts for 5 to 30 percent of the weight of the phase change energy storage material at a speed of between 1.5 and 8ml/m, reacting for 2 to 4 hours, and cooling, filtering and drying to obtain a micro-capsule which takes silicon dioxide gel produced by the organic silicon oxide under alkaline condition as a capsule wall and the emulsified phase change energy storage material as a capsule core, wherein the weight ratio of the phase change energy storage material to the organic silicon oxide is 2.3-19: 1. The obtained product has the average particle size not obviously increased, good free mobility of particles and compact and even capsule wall, and can be applied in the fields of energy utilization, heat exchange and temperature control.

The invention discloses a metal ion crosslinked aqueous polyurethane microencapsulated phase change energy storage material and a preparation method thereof. The preparation method is characterized by comprising the following steps: melting a phase change energy storage material in deionized water at a temperature of between 30 and 90 DEG C, adding a nonionic surfactant which accounts for 0.5 to 10 percent of the weight of the phase change energy storage material, emulsifying under high-speed stirring, then adding aqueous polyurethane with the polyurethane content which accounts for 0.5 to 20 percent of the phase change energy storage material and metal salt water solution with the metal ion weight which accounts for 0.1 to 10 percent of the polyurethane in the aqueous polyurethane, reacting for 0.5 to 4 hours, and cooling, filtering and drying to obtain a phase change energy storage material micro-capsule which takes the phase change energy storage material as a capsule core and metal ion crosslinked aqueous polyurethane as a capsule wall, wherein the weight ratio of the phase change energy storage material to the aqueous polyurethane is 0.5-20: 1. The product has the average particle size not obviously increased, good free mobility of particles and compact and even capsule wall.

The invention discloses a shale gas horizontal well bridge plug separation and ball throwing segmented fracturing process, which concretely comprises the following steps of: 1, draining, exploring and washing a well tube; 2, performing clustering perforation on a first segment; 3, performing fracturing construction on a first cluster; 4, throwing balls for sealing the first cluster; 5, repeatedly performing the fracturing construction, ball throwing and sealing steps in the third step and the fourth step on a second cluster, a third cluster to an N-th cluster; 6, sealing the first segment by a lower bridge plug, and performing clustering perforation on a second segment; 7, sequentially and repeatedly performing fracturing construction, ball throwing, sealing and lower bridge plug sealing steps in the third, fourth, fifth and sixth steps on the second segment to the N-th segment; and 8, performing sweeping grinding. The process method has the advantages that the design is reasonable; the construction cost is low; the optimum flowing passage of shale gas can be realized by adopting the process method; high economic return is obtained at high speed and high yield; and the fractures can be limited to the most economic positions.

The invention pertains to solar energy application field, and provides a straight through type double-layer glass vacuum solar energy heat collection tube comprising an internal glass tube and an external glass tube disposed outside the internal glass tube. The internal glass tube is open at the two ends, a solar energy selective absorption coating is provided on the outer surface of the internal glass tube, vacuum space in which a degasser may be disposed is provided between the internal glass tube and the external glass tube, a light focusing reflective element is disposed between a backlight face of the internal glass tube and the external glass tube, and a ring-shaped expansion joint which is made of materials with a linear thermal expansion coefficient between 3*10<-6> m/m DEG C to 5*10 <-6> m/m DEG C is also provided with a U-shaped section, is disposed at the terminals of the internal glass tube and the external glass tube, and is connected hermetically with the internal glass tube and the external glass tube. Shortcomings of straight through type glass heat collection tubes in prior art, which are easy-broken and low heat-collecting efficiency, are overcome.

A steel wire mesh type canvas for oil painting is composed of a paper layer as bottom layer, a steel wire mesh layer as sandwich layer, and a surficial mixture layer prepared from white cement, liquid adhesive and pigment through mixing.

The invention relates to an online operation exchangeable thermocouple for testing the temperature of a sulphur furnace. The thermocouple includes a thermocouple and a protection bushing which sleevesthe thermocouple. The thermocouple which has the protection bushing extends into a sulphur furnace through a temperature testing support pipe which is installed in the sulphur furnace. The side surface of the temperature testing support pipe is provided with a first blowing interface and a second blowing interface which are disposed at intervals in front-rear direction. One ends of the first blowing interface and the second blowing interface are in communication with the temperature testing support pipe, and the other ends are connected a protection gas source. The rear end of the thermocouple is connected to a junction box which is in tight coupling with the temperature testing support pipe. The temperature testing support pipe between the protection bushing and the junction box is provided with a micropressure pressure gage thereon. The rear end of the temperature testing support pipe is provided with a rotary valve which can block the temperature testing support pipe. According tothe invention, the thermocouple can effectively prevent permeation and leakage of sulfuretted hydrogen, prolongs service life of thermocouple, increases accuracy in testing temperature, and since thethermocouple obviates the need for suspending the work of the furnace for exchanging the thermocouple, the operation period is prolonged and the production efficiency is greatly increased.

The invention provides a method for manufacturing waterproof sheets of microphones. The method comprises the steps of a) fixing thin silicon wafers on etching carriers; b) forming a plurality of water-impermeable through holes on the thin silicon wafers through etching. The waterproof sheets of the microphones, which are manufactured according to the method, are good in structural integrity, good in waterproof performance, good in sound effect, thin and accurate in thickness, resistant to high-temperature backflows and good in batch productivity.

The invention discloses a method for detecting genetic toxicity by using 3D hepatocyte in-vitro micronucleus cells. The method comprises the following steps of (1) constructing a 3D hepatocyte model in vitro by using common humanized hepatocytes HepG2 as a cell material by adopting a scaffold-free culture method combining hanging drops and ultra-low adsorption culture; and (2) carrying out micronucleus cell detection on a compound by using the 3D hepatocyte model, and analyzing the genetic toxicity mechanism of the compound. The in-vitro detection method can be used for analyzing various genetic toxicity mechanisms of the compound, improving the capability of predicting the genetic toxicity of drugs by an in-vitro cell model and providing information related to human body tests.

The invention belongs to the ceramic field, and particularly relates to a heat-resisting high-strength ceramic product and a preparation method thereof. The heat-resisting high-strength ceramic product is made from the following raw materials by weight: 20-30 parts of aluminum oxide, 10-15 parts of nano calcium carbonate, 5-10 parts of red feldspar, 5-10 parts of kaolin, 20-25 parts of potash feldspar, 5-8 parts of wollastonite, 10-15 parts of blue feldspar, 10-15 parts of quartz, 5-8 parts of chromium hemitrioxide, 15-20 parts of spodumene, and 1-1.5 parts of nano cerium oxide. The preparation method comprises the steps of weighing, grinding, filtering, drying a blank, washing, glazing, firing and so on. The ceramic product has the characteristics of low coefficient of thermal expansion, and strong thermal shock resistance, is not easily broken in the heat exchange process, and can be used under the harsh environment.

The application discloses a manufacturing process of a small-sized thin buzzer piece. The manufacturing process comprises the following steps: throwing raw materials for manufacturing the buzzer piece into a ball mill to be mixed and milled, and performing discharging and drying after 24 h; pre-burning the mixed and milled raw materials at 1,040 DEG C for 2 h, and finely grinding pre-burned powder; performing mixed barreling on the finely ground powder, a binder and an organic solvent, and making the obtained slurry into a green body through a casting machine and a sheet-punching machine; sequentially performing rubber discharging, sintering and fragmenting treatment on the green body; brushing segmented products with a silver paste, and performing silver ink firing treatment; adhering the products subjected to silver ink firing to a metal sheet, and performing drying and curing; and polarizing the cured product to obtain a piezoelectric ceramics buzzer piece. According to the manufacturing process provided by the application, the technological order of polarization and adhesion in a conventional process are reversed, the manufactured piezoelectric ceramics buzzer piece is thicker than a buzzer piece manufactured by the conventional process, the product reliability is not influenced, the technological difficulty in producing the small-sized thin buzzer piece is reduced, the qualification rate is greatly improved, and waste is avoided.

The invention relates to a method for producing a high-pressure pipe (1). An inner pipe (2) made of metal and an outer pipe (3) made of metal are drawn together through a first drawing die (4a). The outer diameter (D2) of the inner pipe is smaller than the inner diameter (D3) of the outer pipe. By drawing the outer pipe and the inner pipe, which extends in the outer pipe, together through the first drawing die, a very stable force-fitting connection is produced between the inner pipe and the outer pipe. As a result, a pipe is produced with a large wall thickness, by means of which the producedpipe is very robust and pressure-resistant while having a very high quality outer lateral surface and in particular a very high quality inner lateral surface by virtue of the cold forming process. These two properties allow a sufficiently high protection of the pipe to be produced against bursting when pressures in excess of 12,000 bar are applied to the pipe. Accordingly, the method according tothe invention is particularly suitable for producing a pipe with clearly improved dynamic pressure resistance against high pressures by combining a large wall thickness of the pipe to be produced with a high quality inner lateral surface of the pipe to be produced.

The invention provides a bamboo joint earthen pot production process. The product comprises the following components in percentage by weight: 68.8%-75.52% of silicon, 19.59%-26.38% of aluminum, 0.66%-1.5% of iron, 0.09%-1% of titanium, 0.04%-0.5% of calcium, 0.08%-0.5% of magnesium, 0.34%-1% of potassium, 0.01%-0.1% of sodium and 1.39%-2.5% of lithium. The process comprises the steps of grinding, high-pressure forming, turning table forming, glazing, firing and the like. The components of the earthen pot are limited in a more accurate percentage mode, the earthen pot is integrally fired and formed through combination and arrangement of the production process, different colors are presented in cooperation with glaze, the service life of the earthen pot is longer, the earthen pot is more attractive, and especially the earthen pot cannot be broken when fired on fire at 400 DEG C.

The invention relates to a deodorization blasting bead, a deodorization cat litter and a manufacturing method thereof; the deodorization blasting bead comprises a rubber skin and a wrapping liquid, and the compressive strength of the deodorization blasting bead is 0.4-1 Pa; the rubber skin comprises konjac glucomannan or guar gum or agar or carrageenan or xanthan gum or the like, and the deodorizing blast bead is applied to deodorizing animal sand. After encountering urine, the blasting bead is broken, the liquid in the bag is released for deodorization, and the effect is good. By controllingthe pressure resistance of the blasting bead, the blasting bead is broken when encountering urine, the urine is dissolved and absorbed within 15-20 s, then the deodorization effect is achieved, and meanwhile breakage cannot be caused in the transportation process, so that the product quality is not affected.

The invention relates to the technical field of sewage treatment equipment, and discloses a sewage treatment apparatus capable of preventing box breakage. The sewage treatment apparatus comprises a box. The movable openings in the outer wall of the box are fixedly connected to a circular column. A support column is arranged in the circular column movably. One end of the support column is fixedly connected to a buffer block. The buffer block is arranged in the box. The external side of the support column is movably connected to a spring. One end of the spring is fixedly connected to one side ofthe internal wall of the box. The end, which is far from the internal wall of the box, of the spring is fixedly connected to the external side of the buffer block. Through the cooperation among the box, the circular column, the support column, the buffer block, and the spring, the buffer block can move the spring horizontally so as to minimize the impact force of sewage on the buffer block, the impact force on the buffer block is minimized, the buffer block and the box will not be broken, the service life of the box and the buffer block is prolonged, and the sewage in the box will not flow out and pollute the environment.

The invention discloses a processing technology for enhancing the nail-holding power of a biomass fiberboard, and relates to the technical field of fiberboard processing. The processing technology comprises the following steps: firstly preparing a polymeric monomer, then carrying out addition polymerization reaction on the polymeric monomer, polyhydric alcohol and diisocyanate, reacting the obtained mixture with a bismaleimide monomer to obtain a polymer powder material, then uniformly mixing the polymer powder material with biomass fiber for hot press molding, and conducting cooling treatment to obtain the fiberboard with excellent nail-holding power. Interpenetrating continuous phase polymer layers which penetrate through one another are formed in the biomass fiberboard, the friction force between steel nails and the fiberboard is increased while the compactness of the fiberboard is increased, and therefore the resistance generated when the steel nails are pulled out of the fiberboard is increased, and the nail-holding power of the fiberboard is remarkably improved.

The invention discloses a test tube for medical detection. The test tube for medical detection includes a test tube, wherein tube cap is arranged at one end of the test tube; an openable central coveris arranged in the tube cap; a rotating shaft is arranged at one end of the tube cap; a spring is arranged on the surface of the rotating shaft; a tube cap opening handle is arranged on one side of the rotating shaft, a branch tube is arranged on one side of the test tube, a branch tube plug is arranged at one end of the branch tube, a uniform heat conduction mesh is arranged on the surface of the test tube, an explosion-proof layer is arranged in the test tube, a damping layer is arranged in the explosion-proof layer, and an experiment layer is arranged in the damping layer. By designing theexplosion-proof layer and the vibration reduction layer on the test tube, a problem that the test tube topples or falls off due to negligence of people in an experiment is avoided, wherein the explosion-proof layer and the vibration reduction layer can effectively reduce breakage of the test tube, protect an internal experiment layer from breakage and prevent reagents from running off, so that the problem that the test tube topples and is easy to break when the test tube is used for the experiment in the past is solved.

The invention discloses a rupture prevention bubble lamp. The bubble lamp comprises a base, a light source arranged on the base, an upper cover connected to the base and a sealing decoration pipe. An insertion-connecting hole is formed in the upper cover in the direction facing the light source. The sealing decoration pipe is inserted into the insertion-connecting hole. A buffer part used for isolating the light source from the sealing decoration pipe is arranged between the light source and the sealing decoration pipe. According to the rupture prevention bubble lamp, the buffer part used for isolating the light source from the sealing decoration pipe is additionally arranged, so that the problem that light sources and sealing decoration pipes are prone to rupture due to heating expansion is effectively solved, and the structure is simple and easy to implement.