448results about How to "Improve leak resistance" patented technology

The present invention provides an electronic vaporizing inhaler with an electrical storage device; a liquid reservoir for vaping liquid; a vaporizer with a substrate defined by a plurality of capillary apertures that provide fluid communication between the vaporizer and the liquid reservoir; a sponge; a wick; and a heating element; a microprocessor in electrical communication with the electrical storage device that directs current from the electrical storage device to the heating element in the vaporizer; a sensor configured to detect when a user draws on the electronic cigarette that activates the microprocessor when it detects that a user has drawn on the electronic cigarette; a housing having designed to contain the electrical storage device, vaporizer, microprocessor, sensor, and liquid reservoir and having a mouthpiece from which a user can inhale vapor from the vaporizer. The invention also provides a dosage control embodiment using a heat or diaphragm pump.

An electronic cigarette is provided, comprising a case, an atomizer seat, and a battery, both the atomizer seat and the battery accommodated in the case, the atomizer seat defining a first through hole; wherein, a bracket and a sealing component corresponding to the bracket are mounted between the atomizer seat and the battery, an extension part corresponding to the first through hole is formed at one side of the bracket facing the atomizer seat, the extension part is inserted in the first through hole to prevent the atomizer seat and the sealing component from leaning, and the sealing component is sleeved in the case and cooperates with an inner surface of the case to form interference fit.

A cup-shaped receptacle has an outer bead in its opening area for clipping on a plastic lid, which has a circumferentially continuous clamping groove for receiving the bead. The clamping groove is continued outwards by an elastically deformable constriction, and inwards by an outer wall of a circumferentially continuous, U-shaped lid recess, whose U-web of is situated below the height position of the constriction and whose inner leg wall forms a part of a dome wall of a dome which extends upwardly beyond the height position. The lid recess extends downwards beyond the height position and has an outer diameter at its outer surface which is adapted to the inner diameter of the receptacle wall such that the lid recess functions at least as a centring and guide projection for the lid-clip-on action, which projection slidingly co-operates with the receptacle wall already at least while the bead passes the constriction.

The present invention relates to a method for using ultrasonic treatment to prepare ferrite-silicone dioxide core-shell nano particle. The method includes the following steps: firstly, using coprecipitation process to prepare ferrte nano particle, then making the ferrite nano particle under the process of ultrasonic treatment, then using inorganic silicone source and organic silicone source to make wrappage to twice so as to obtain the invented ferrite-silicone dioxide core-shell nano particle whose grain size is 50-200 nm. The product can be used in the fields of biological, sealing and magnetic recording material, etc.

The invention discloses a liquid silicon rubber base glue stock comprising 100 weight parts of HO[(CH3)2SiO]nH, 30-70 weight parts of reinforcement filling material, and 1-20 weight parts of structured control agent. The invention also discloses the process for preparing the liquid silicon rubber base glue stock, liquid silicon rubber material containing the liquid silicon rubber base glue stock and its preparing process, wherein the material comprises component (A) and component (B) by the mass ratio of 1:1, wherein the component (A) comprises 100 weight parts of liquid silicon rubber base glue stock, 0.05-0.5 weight parts of addition reaction catalyst, and the component (B) comprises 100 mass parts of liquid silicon rubber base glue stock, 2-10 weight parts of cross linking agent, 0.04-0.5 weight parts of addition reaction depressant and 0.03-0.5 wt% of pigment.

The invention relates to a pipeline structure used for transporting different media such as solid, liquid and gases and a manufacturing process thereof. A continuous filament wound and reinforced thermoplastic pipe is characterized in that a tubular pipeline liner layer, a pipeline structural layer and a pipeline outer protective layer are wound to manufacture a whole structure; the pipeline structural layer is positioned between the pipeline liner layer and the pipeline outer protective layer; the pipeline liner layer and the pipeline outer protective layer are made of thermoplastic plastics; and the pipeline structural layer is made of continuous filaments. The pipeline provided by the invention has better strength, rigidity, shock resistance, fracture toughness, temperature and corrosion resistance, seepage resistance and the like than the traditional thermoplastic or thermosetting pipelines, can be widely applied in the fields such as water supply and sewerage works, petrochemical industry, coal gas and natural gas transportation, seawater desalination and nuclear power and can be suitable for special environments and requirements such as heavy calibre, high rigidity, high strength and high corrosivity.

A method for making pipe joints on successive pipe sections introduced into an oil well as assembled into a pipeline in which the joints are substantially of the same dimensions as the pipe sections to allow for subsequent plastic expansion of the sections. In each joint, a female pipe end is tapered on the inside and an adjacent male end is tapered on the outside preferably with a complementary self locking taper which also has an interference fit. The female pipe end is heated to be expanded sufficiently to be assembled onto the male end and thereafter cooled to grip the male end in a leakproof manner. For larger pipe sizes, the tapered shapes have features which interlock in a leakproof manner when engaged after assembly of the pipe ends. The tapered shapes preferably are formed by a reversibly positioned forming tool which is alternately engaged with male and female pipe ends to ensure perfectly matching shapes.

A kind of block for building wall and the wall built with said blocks. There are many analogous blocks laid to overlap and stagger with upper / nether block continuously in said wall. The block extends lengthways and comprises top surface (1), bottom surface (2) and two end surfaces (3); the cross section thereof on the whole is a converse trumpet shape; the top surface (1) has a mid ridge (4) higher than the two sides of the surface so as to form the left / right supporting slope (5); the top surface (1) and the bottom surface (2) are formed in this way: when a block overlap with a analogous block thereunder to form a wall, the left and right supporting slope (5) become a blocking structure to lock the two blocks neighbored up and down, the raised dimension of the mid ridge (4) can cut off space-time trochoid. This invention also provides the assistant blocks, which cooperate with said blocks when building wall.

The invention discloses a synchronous excavation supporting system for a deep and large asymmetric pit in a soft soil area and an implementation method of the supporting system. The deep and large asymmetric pit consists of a deep area and a shallow area which are internally close to each other, the top elevation of an enclosure structure at the junction of the deep area and the shallow area is a substrate of the shallow area, the total pit is provided with a first horizontal support in a unified way, the deep area is additionally provided with a plurality of deep-area horizontal supports, a soil body platform used for balancing the horizontal transfer force of the deep-area horizontal supports is reserved at the junction of the interior of the shallow area and the deep area, and two sides of the soil body platform are sloped to the substrate of the shallow area, so that open excavation and bottom-up construction in the deep area and the shallow area can be synchronously carried out, the problem of imbalance of the internal force and the deformation of the pit caused by an asymmetric excavation mode due to function requirements is solved, and the asymmetric pit can be excavated in a safe, reliable, economic and environment-friendly mode; through the synchronous excavation of the deep area and the shallow area, the construction period can be effectively shortened, and the construction cost is reduced; moreover, the supporting system is definitely stressed, the horizontal force of each horizontal support additionally arranged in the deep area is reliably transferred, and the construction feasibility is high.

The invention relates to a colourful environmental-friendly synthesized polymer waterproof paint which comprises the following components in parts by weight: 3-7 parts of petroleum resin, 5-15 parts of styrene-ethylene-butylene-styrene (SEBS), 5-15 parts of styrene-butylene-styrene (SBS), 5-10 parts of thermoplastic polyurethane elastomer, 4-8 parts of terpene resin, 4-8 parts of poly-alpha-methyl styrene, 2-5 parts of tung oil, 10-15 parts of mica powder, 0.2-0.5 part of antiager D, 0.2-0.5 part of antioxidant 264, 0.2-0.5 part of defoaming agent, 0.3-0.5 part of ultraviolet absorber, 35-45 parts of 120 # solvent, 5-15 parts of butyl acetate and 1-3 parts of color paste. The paint has the characteristics of unique waterproof property, acid-base resistance, ultraviolet irradiation resistance, heat insulation, anti-aging property, high adhesion strength, water repellent, good leakage-resisting effect, heat resistance, frost resistance and good elongation; and the paint also has the advantages of wide application range, moderate price, environmental friendliness, durability and the like, and is convenient to use, thereby meeting the demand of people in a real life.

The present invention relates to a steel inner container big capacity high pressure tank and its preparation, which includes an inner bag made of steel high pressure seamless pipe, an intensive compound shell with the outwall wrap solidified and a protection course. The structure adopts the following steps to process: 1. selecting matching steel high pressure seamless pipe and adopting the spinning beading, heat treatment modulator, trueing machine processing to make the inner bag; 2. rotating the bracket to position the inner bag; 3. setting the high tensile fiber glue roller guide on the inner bag; 4. setting the initial wrap helix angle smaller than 40 degree and the pre-tension 5-15% of the fiber bundle tensile strength; 5. gapless thickly wrapping between the two beadings of the inner bag alternate in the clockwise and counter-clockwise; 6. adding the wrapping angle 0.5-1.5 degree completing the alternation every time; 7.maintaining the design thickness of the intensive compound layer when the wrapping angle increases to the 75-85 degree; 8. being posted into the curing oven for drying, curing, shaping process.

The invention relates to a high-glowing-filament high-CTI (comparative tracking index) super-tough flame-retardant PBT / PC (polybutylene terephthalate / polycarbonate) alloy material and a preparation method thereof. The material is prepared from the following raw materials in parts by weight: 15-70 parts of PBT, 10-25 parts of PC, 10-25 parts of compound toughener, 5-20 parts of bromine flame retardant, 3-10 parts of phosphorus-nitrogen flame retardant, 2-5 parts of inorganic flame-retardant synergistic agent, 0.1-0.5 part of ester exchange inhibitor, 0.1-0.5 part of anti-dripping agent PTFE (polytetrafluoroethylene), 0.1-0.5 part of lubricant and 0.1-0.5 part of antioxidant. The PBT / PC alloy material has excellent comprehensive properties; and the ASTM (American Society for Testing and Materials) notch impact strength is greater than 600 J / m, the flame retardancy reaches UL94V-0, the glowing filament temperature GWIT is greater than 850 DEG C, and the CTI is greater than 600V, thereby greatly widening the application range of the PBT / PC alloy material.

The invention relates to an ultralow-density oil-base drilling fluid. The invention is characterized in that the ultralow-density oil-base drilling fluid is prepared from the following raw materials: base oil, a density reducer, a suspension stabilizer, an emulsifier, a tackifier, a fluid loss additive, a flow pattern regulator, an alkalinity regulator and a calcium chloride water solution. The base mixed oil is prepared by the following steps: mixing 3# white oil, 5# white oil and natural gas prepared oil, adding a flash point enhancer while stirring, and standing for 0.5-1 hour; and stirring at low speed at the temperature of 30-40 DEG C, and slowly adding oil-soluble nano fumed silica while stirring, wherein the addition process is controlled at 2-3 hours. The ultralow-density oil-base drilling fluid has the advantages of favorable emulsifying stability, favorable rheological properties, high inhibition property for mud shale, high emulsion-breaking voltage, low filter loss, low density (0.75-0.90 g / cm<3>), and high sand carrying and pressure bearing capacities, is beneficial to cleaning the borehole and enhancing the mechanical drilling speed, solves the problem of severe lost circulation in the low-pressure formation and long-section shatter zone formation, and is especially suitable for low-pressure oil gas pools and depletion water-sensitive formations.

A biologic water-proof adhesive for building, wood, metal, ceramic, glass, etc is prepared from glutinous rice, water, ethene-vinyl acetate emulsion, dioctyl phthalate, PVC, tung oil, acrylic emulsion and natural rubber. Its advantages are high weatherability, adhesion, tension strength, elongation percentage for breaking and resistance to water, acid and alkali.

The invention provides a double-layer water-stopping steel ring for a shield starting tunnel portal. The double-layer water-stopping steel ring comprises an embedded steel ring, a cord fabric rubber plate, a fixed ring plate, a ribbed plate, a grouting pipe, a front plate, a first circular plate, a stiffening plate, a water-stopping tank, two turning plates and a second circular plate, wherein the water-stopping box is formed by welding of the fixed ring plate, the grouting pipe and the front plate, the ribbed plate is installed in the water-stopping tank, the stiffening plate is mounted on the outer side of the second circular plate, and the two turning plates are installed on the first circular plate and the second circular plate respectively. The double-layer water-stopping steel ring for the shield starting tunnel portal and a mounting method of the double-layer water-stopping steel ring have the advantages that mounting of the double-layer water-stopping steel ring for the shield starting tunnel portal adopts the structure of the water-stopping tank to proof water, the double-layer water-stopping steel ring is mounted, the structure is simple, the waterproof requirement for shield tunnels is met, the double-layer water-stopping steel ring is convenient to operate and has a good waterproof effect, and construction safety is guaranteed.

The invention discloses an aerogel and foamed concrete block. The aerogel and foamed concrete block is characterized by being prepared from aerogel and foamed concrete which contains aerogel powder and foamed concrete, wherein the aerogel powder contains an internal hydrophobic layer and a surface hydrophilic layer, and the surface hydrophilic layer is 0.1-100 mu m thick. The preparation method of the aerogel and foamed concrete block comprises the following steps: (1) modifying the aerogel powder; (2) performing dry mixing on the aerogel powder obtained in the step (1) and a cementing material, and adding water for wet mixing; 3) mixing and stirring the wet mixture obtained in the step (2) with a foaming agent; (4) forming the wet mixture obtained in the step (3). A thermal-insulation wall built from the aerogel and foamed concrete block has more outstanding tensile stress resistance, crack resistance and anti-seepage performance, and can be widely applied to exterior walls, self-insulating walls and other fields of green buildings, buildings with ultra-low energy consumption and buildings with nearly zero energy consumption.

A disposable diaper comprising a fluid-permeable topsheet, a fluid-impermeable backsheet and a fluid-retentive absorbent core interposed between the topsheet and the backsheet, the disposable diaper being formed in a substantially vertically elongated configuration and having a stomach side, a back side and a crotch region positioned between the stomach side and the back side, wherein a second absorbent core is disposed at an outside region of each opposite side edge of the absorbent core at the crotch region along a longitudinal direction of the diaper, and an elastic member is disposed at the region where the second absorbent core is disposed along a longitudinal direction of the diaper.

A disposable diaper comprising a liquid permeable topsheet 2, a liquid impermeable backsheet 3, and a liquid retentive absorbent member 4 and having a substantially oblong shape, the absorbent member 4 in the crotch portion having a middle absorbent portion 42 which occupies the middle 3 / 7 of the width of the absorbent member 4 and side absorbent portions 43 which each occupy the outermost 1 / 7 of the width of the absorbent member 4, wherein each side absorbent portion 43 has a larger unit absorption capacity than the middle absorbent portion 42, hydrophobic sheets 3 and 21 are disposed on the lateral outer edge of each side absorbent portion 43 to cover from the upper to lower surfaces of the edge, and an elastic member 71 is disposed in the part having each side absorbent portion 43 in the longitudinal direction of the side absorbent portion 43.

The invention relates to a large-power modular power supply and a cooling structure thereof. The large-power modular power supply comprises a shell, a circuit board, an electric input connector, an electric output connector and a cooling structure, wherein the shell is internally provided with a containing space for containing the circuit board which is connected with external equipment through the electric input connector and the electric output connector which are arranged on the shell, the cooling structure comprises a liquid cooling passage, an input port connector and an output port connector, the liquid cooling passage is integrally formed in the shell for cooling liquid to flow by, and the input port connector and the output port connector which are arranged on the shell and respectively and hermetically connected with both ends of the liquid cooling passage. The invention can remarkably save the mounting space, is convenient to process and maintain and has favorable cooling effect.

The invention discloses a boron nitride / graphene double-heat-conduction-base aerogel composite phase change material. The material is formed by compounding modified boron nitride / graphene aerogel andn-octadecane by adopting a vacuum impregnation method. The double-heat-conduction aerogel is prepared by taking graphene oxide, modified boron nitride, polyvinylpyrrolidone and ethylenediamine as rawmaterials to prepare boron nitride / graphene hydrogel, freeze-drying the boron nitride / graphene hydrogel and then calcining the boron nitride / graphene hydrogel at a constant temperature. Polyvinylpyrrolidone is used as a cross-linking agent, and ethylenediamine is used as a reducing agent. A preparation method of the composite phase change material comprises the following steps: 1) preparing modified boron nitride; 2) preparing boron nitride / graphene double-heat-conduction-base aerogel; and 3) preparing the boron nitride / graphene double-heat-conduction-base aerogel composite phase change material. When the material is applied as a phase change material, the heat conductivity coefficient is 0.9-1.6 W / (m.K); wherein the phase change temperature is 19-32 DEG C, and the phase change latent heatis 200-220 J / g. The composite phase change material has the following advantages: 1, the heat conductivity coefficient is improved by 738%; 2, the leakage problem in the phase change process is effectively solved; and 3, the phase-change latent heat and the heat stability are high;

The present invention relates to a method for increasing leakage resistance in a closed, pressurized system. The method involves providing a closed system including a container sealed with a septum having a top surface with an exposed section, which is maintained under a positive pressure of at least about 5 psig. A contact surface of a hard component is fixedly placed adjacent to or in contact with at least a portion of a border section or a central section of the exposed section of the septum, or both, to reduce the size of any bulge or deformation formed in the exposed section of the septum. The present invention also relates to a kit for increasing leakage resistance in a closed, pressurized system, which includes the hard component.

The invention provides a chaplet which comprises a core column, a pair of bases and a connection piece. The core column comprises a first end and a second end opposite to the first end. The bases are detachably connected to the first end and the second end respectively. The connection piece is fixedly connected to the first end of the core column. The chaplet is adjustable in height and componentized. The invention further provides a casting method for embedding the chaplet in a positioning hole in a mold in the modeling step before the box combination step.

The invention discloses a preparation method of a high-thermal-conductivity flexible phase change material and a battery module. The preparation method of the high-thermal-conductivity flexible phasechange material comprises the following steps: putting a styrene-butadiene-styrene block copolymer into an organic solvent to be sufficiently dissolved into a gel; then mixing paraffin and a heat conduction enhancer, grinding into powder, and fully stirring and mixing with the colloidal styrene-butadiene-styrene block copolymer. The traditional melt blending process is omitted; therefore, the separation phenomenon of two materials is avoided; the adopted organic solvent is easy to volatilize, so that a compact reticular film is formed on the surface of the phase-change material, the coating compactness of the composite phase-change material powder is effectively improved, the flexibility and toughness of the phase-change material are improved, the leakage resistance and latent heat value are improved, and the heat-conducting property of the phase-change material can be improved by adding the heat conduction enhancer .

This absorbent article (1) is provided with: a front surface sheet (12) comprising a composite sheet; a rear surface sheet (13); and an absorbent (14) disposed between both of the sheets. The composite sheet (10) has a first direction (X) in the lengthwise direction of the article and a second direction (Y) in the widthwise direction of the article, and is provided with a plurality of coupling sections that partially couple a first sheet (1) and a second sheet (2) that are laminated, the first sheet (1) being provided with protrusions that protrude in the direction away from the second sheet (2) in locations other than the coupling sections and protrude toward the skin of a wearer. The composite sheet (10) has a middle region (M) and a pair of side regions (S, S) in which the protrusions are formed in different patterns, the surface area ratio of the coupling sections in the side regions (S) is greater than the surface area ratio of the coupling sections in the middle region (M), and the height of the middle region (M) and the side regions (S) is the same as the maximum height of the protrusions.

A thin wall prefabricated superposed concrete underground continuous wall is made of splicing multiple prefabricated wall plates. Each prefabricated wall block is provided with multiple rectangular holes in the middle to reduce weight and be easy to hoist, and rib plates are arranged among the rectangular holes. Two ends of the wall are provided with prefabricated notches, and expansion water stopping strips are embedded in the notches. After soil is digged to form a groove, the wall plates are hoisted in place for splicing, and concrete is poured in cavities to jointly form a whole together with a prefabricated concrete wall. The thin wall prefabricated superposed concrete underground continuous wall has the advantages of high intensity and good penetration resistance.

A method for making pipe joints on successive pipe sections introduced into an oil well as assembled into a pipeline in which the joints are substantially of the same dimensions as the pipe sections to allow for subsequent plastic expansion of the sections. In each joint, a female pipe end is tapered on the inside and an adjacent male end is tapered on the outside preferably with a complementary self locking taper which also has an interference fit. The female pipe end is heated to be expanded sufficiently to be assembled onto the male end and thereafter cooled to grip the male end in a leakproof manner. For larger pipe sizes, the tapered shapes have features which interlock in a leakproof manner when engaged after assembly of the pipe ends. The tapered shapes preferably are formed by a reversibly positioned forming tool which is alternately engaged with male and female pipe ends to ensure perfectly matching shapes.