164results about How to "Good anti-leakage performance" patented technology

The invention provides a cross steel plate water-stopping joint of a continuous concrete wall and a joint construction method thereof. The cross steel plate joint comprises a longitudinal water-stopping steel plate and a horizontal head steel plate, wherein the longitudinal water-stopping steel plate is about 35-50 cm long, a detouring flow line of cement slurry is lengthened, the impermeability of the joint of the continuous concrete wall is enhanced, the bottom of the horizontal head steel plate extends to the tank bottom level or is inserted into the soil by 20 cm, and the detouring flow line of concrete and sand pulp along the bottom of the head steel plate is blocked; during constructing, a cross steel plate and a steel reinforcement cage are welded into a whole which is then deposited into a tank section so that the joint and a wall body have better integrity; a counterforce box is deposited at the back of the cross steel plate and is impacted to enter soil by over + / -30 cm, and then carpolite or clay are backfilled at the back for sealing; the concrete is cast in the tank section; the counterforce box is pulled out, then a flushing or shoveling tool corresponding to the cross steel plate in structure is adopted to remove the attachment at the part so as to ensure the water-stopping effect and the joint intensity of the cross steel plate.

Ferroelectric PbZrxT1-xO3 (PZT) thin films are deposited on Pt coated Si substrates by using RF magnetron sputtering. A method for obtaining desirable stoichiometric PZT, the desired ferroelectric perovskite phase, and better dielectric properties using a PZT target with Pb / (Zr+Ti) ratio of 1.2 and depositing at 350° C., followed by thermal treatment at 620° C. for 30 min is disclosed. The structural and electrical properties of the PZT layer were further improved by a method of fabricating a novel multi-layer structure which combined the PZT thin film with nanolayers of BaTiO3. The method and device of the present invention provided reduced leakage current density while maintaining high relative effective dielectric constants.

A collapsible cooking container formed from a generally, rectangularly shaped paperboard blank folded along crease lines so as to have a bottom portion, a first side portion, a top portion, and a second side portion wherein the top portion and the first side portion are adapted to be attached to form a cube having opposed, open sides. The opposed, open sides are substantially covered when the collapsible cooking container is in an expanded condition by segments provided to the bottom portion, first and second side portions, and top portion that cooperate to form first and second collapsible sides.

A disposable undergarment is described which has an improved arrangement of leg- and crotch-region elastic members, such as to improve absorption capacity and fit.

The invention discloses a semi-interpenetrating polymer cement-based flexible facing brick, which comprises the following components, by weight part, 10-25 parts of a waterborne epoxy resin emulsion, 3-10 parts of a water-soluble epoxy resin curing agent, 1-5 parts of rubber elastomer, 1-5 parts of a fluorine-containing polyacrylate elastic emulsion, 15-25 parts of cement, 15-25 parts of stone flour, 30-50 parts of quartz sand, 5-15 parts of a fire retardant, 1-3 parts of inorganic pigment and 10-25 parts of water. A manufacturing method of the facing brick comprises: adding the components by weight part to a stirring vessel, performing full stirring to make a thick liquid, injecting the thick liquid to a die, and performing solidification and drying to obtain the facing brick. The manufacturing method is simple, and the obtained flexible facing brick is excellent in mildew resistance, water resistance, seepage resistance, wear resistance, thermal resistance and flexibility, is high in strength, and can be widely applied to building decoration materials.

The invention discloses a three-layer plastic optical fiber Ethernet switch. The Ethernet switch comprises a network management subsystem, a driving subsystem and a switching protocol subsystem which are sequentially arranged in three layers; and routing learning and data packet forwarding are separated in a switching process, wherein the routing learning is realized by a routing protocol run by a central processing unit (CPU) of the network management subsystem, and the data packet forwarding is realized by switching circuit hardware. The Ethernet switch solves the technical problem of the absence of a plastic optical fiber Ethernet switch, has the high capacity of resisting interference and preventing lightning stroke and secrete divulgence, provides an efficient solution on the reliability and security of network communications from a hardware platform and abundant and secure network management functions, and has the functions of network storm isolation, network access authority control, IP address spoofing and hacker attack prevention and the like as core switching equipment in an autonomous system.

The medical collagen material is made through the processes of chondroitin sulfate crosslinking, high temperature vacuum drying and ethylene oxide. Is has stable molecule structure and better anti-seepage and anti-stick performance, and is used in repairing cerebral dura mater, spinal dura mater and peripheral nerve.

The invention discloses a harmonic window function of vibration signal processing, and constructs the harmonic window function with adaptive window functions by means of a harmonic wavelet basic function. The method realizes window analysis of vibration signals better without reducing information points, and the harmonic window function has lower time-domain and frequency-domain leakage than other original window functions due to the characteristic of compact support. The method has a flexible time-domain analysis window and centering control and can select any interested frequency band to carry out analysis. The scheme can accurately detect and analyze complex vibration signals.

The invention relates to anti-seepage structures of building engineering, in particular to an anti-seepage structure of a kitchen and bathroom reserved hole and a construction method. The anti-seepage structure of the kitchen and bathroom reserved hole comprises the pipeline reserved hole formed by cast-in-place concrete, a drain pipe and filling concrete poured between the pipeline reserved hole and the drain pipe are arranged in the pipeline reserved hole, the filling concrete is composed of a first concrete layer and a second concrete layer, the first concrete layer is located below the second concrete layer, the first concrete layer is in a straight cylinder shape, and the second concrete layer is in an inverted-circular-cone shape. The two concrete layers in different shapes are combined, so that the combination area with the pipeline reserved hole (1) is enlarged, and the anti-seepage performance of the plugged hole is improved. Thus, maintenance cost increased by water leakage can be reduced, and resources can be easily saved. An anti-seepage agent is arranged in the filling concrete, and thus the anti-seepage effect is better.

A valve stem (13) for use with a metering valve, said valve stem (13) comprising an elongate stem element (12) having an elastomeric sleeve (9) molded onto at least a portion thereof and a sealing element (16) having an inner surface (7), said sealing element (16) being affixed onto the elongate stem element (12), such that at least a portion of the inner surface (7) of the sealing element (16) is overlying at least a portion of the elastomeric sleeve (9); as well as methods of manufacturing such a valve stem.

The invention relates to the field of building decoration and provides a bathroom waterproof system which is simple in structure can convenient to construct and can effectively prevent water molecules in a bathroom from leaking outward and a construction method. The technical problems that in the prior art, the leakage proof effect of the bathroom is poor, the situation that a floor, a door sleeve and the like in a dry area mould and decay is quite prone to occurring, and the attractive degree of overall decoration is reduced are solved. The bathroom waterproof system comprises a bathroom floor base layer and a dry area floor base layer connected with the bathroom floor base layer. Ground decoration paving layers are laid on the surfaces of the bathroom floor base layer and the dry area floor base layer correspondingly. An elastic water retaining plate and the lower end of an elastic water retaining strip are arranged between the bathroom floor base layer and the corresponding ground decoration paving layer in a clamped mode, wherein the upper end of the elastic water retaining plate extends upward to the exterior of the ground decoration paving layer and connected on the bottom face of a doorsill plate in a closed mode, and the upper end of the elastic water retaining plate extends upward to the exterior of the ground decoration paving layer and connected with a cement mortar retaining strip in an airtight mode. The cement mortar retaining strip divides the corresponding floor decoration paving layer into a bathing area and a rest area.

The invention discloses a preparation method and application of a carbon fiber / silicon carbide composite porous skeleton with a directional heat conduction characteristic, and relates to the following steps: firstly, uniformly mixing silicon and silicon dioxide powder raw materials, then uniformly dispersing the silicon source mixture and a carbon fiber raw material in a binder solution, and obtaining a three-dimensional skeleton blank with an oriented porous structure through pre-freezing, freeze forming and vacuum freeze drying treatment, wherein the forming principle is that the orientation direction of the skeleton is regulated and controlled by utilizing the effect of an oriented ice template method to prepare the three-dimensional oriented ordered porous skeleton; and finally, carrying out high-temperature calcination treatment in an inert atmosphere, and generating silicon carbide by utilizing a carbon thermal reduction reaction, so as to prepare the carbon fiber / silicon carbide composite porous skeleton with the directional heat conduction characteristic. The prepared composite porous framework body can be used as a heat conduction filler to be applied to a phase change heat storage material and a thermal interface material, the heat conductivity coefficient of a compound is improved, and the characteristic of oriented heat conduction is achieved. The method is simple in preparation process, low in cost and wide in application.

The invention discloses an asphalt thickener and asphalt cement. The asphalt thickener is macromolecular polysaccharide, which consists of D-glucose, D-glucuronic acid, L-rhamnose and L-mannose and has tetrasaccharide repeating units, and contains the chemical constituents: 2.8-7.5% of acetyl and 11.6-14.9% of glucuronic acid. The asphalt cement contains 0.2-3.0% (by mass) of the thickener. The thickener disclosed by the invention is a polysaccharide with high molecular weight, and polymer molecular chains can be wound and curled to one another at a low shearing rate, so that the apparent viscosity of an asphalt system is improved; a polymer structure is depolymerized into an irregular linear structure at a high shearing rate, so that the viscosity is rapidly lowered; and when the shearing rate is canceled, a molecular structure is restored to a double-helix reticular polymer state, so that the viscosity of the asphalt cement is restored to the maximum.

The invention relates to an integrated floor-heating flexible ceramic tile and a production method thereof. The integrated floor-heating flexible ceramic tile combined by a flexible ceramic layer and a polymer composite electric-heating film is good in flexibility, high in tear resistance, high in elongation at break, high in heat resistance, high in heat efficiency, fast in heating, and the like. The flexible ceramic layer is produced by inorganic powder and polymer materials, and the polymer materials are water-borne epoxy resin emulsion, water-soluble epoxy resin curing agent, rubber elastomer and fluorine-containing polyacrylate elastic emulsion. The polymer composite electric-heating film comprises a polyurethane resin heat-conducting insulating layer, a carbon nanotube polyurethane resin heating layer, a polyurethane resin insulating layer and electrodes. The polymer composite electric-heating film is formed by the heat-conducting insulating layer semi-cured by polyurethane resin, the heating layer semi-cured by carbon nanotube polyurethane resin and the insulating layer semi-cured by polyurethane resin through hot pressing. The soft ceramic layer is integrally connected with the polymer composite electric-heating film through the polyurethane resin heat-conducting insulating layer to form the integrated floor-heating flexible ceramic tile.

The present invention relates to a T-type multifunctional small block and its production forming method. Said invention adopts T-shaped block type series and composite forming process to solve the problem of combination of several layer materials in the production of concrete small blocks, and greatly raise technical content and additional value of product, implement high prefabrication extent ofsmall blocks, improved reinforcement scheme of block and block bonding body, and can more flexibly and reaonsably arranged steel bar, can conveniently make construction and can flexibly form various structures with different forms, and can obviously raise strength of block hollow bonding body so as to raise quality and efficiency of building construction.

The present invention discloses an alkaline dry cell with a high capacity having a superior liquid leak resistant property. In this alkaline dry cell, the thickness of the trunk portion of an external can is made thinner than 0.18 mm, and the thickness of the sealing edge portion of the external can is set to not less than 1.4 times the thickness of trunk portion. An anode terminal plate is used as a supporting member for a sealing member. Over the entire outer circumferential portion of the anode terminal plate is placed a curved portion having an average curvature radius of not more than 1 mm, which shows a virtually C-letter shape or an arc shape in its cross-section obtained by cutting the anode terminal plate through its center in the thickness direction.

The invention discloses a polyethylene polypropylene fiber composite waterproof coiled material, which comprises a sand surface layer, a polyethylene polypropylene fiber material layer, a glass fiber layer, a mineral particle layer, a tire base layer, a POE plastic layer, and a non-woven fabric layer sequentially arranged from top to bottom. Layer, self-adhesive rubber waterproof layer and isolation membrane layer. Adopt a kind of polyethylene polypropylene fiber composite waterproof membrane of the present invention, the setting of polyethylene polypropylene fiber material layer has increased the tensile strength of waterproof membrane, anti-leakage, deformation adaptability is strong, and the setting of POE plastic layer makes waterproof membrane More toughness and elasticity, good waterproof effect, good toughness, can prevent the breakage of the waterproof membrane, improve the poor deformation resistance of the waterproof membrane and adaptability to temperature changes, and ensure the overall waterproof performance of the waterproof membrane .

The present invention discloses an alkaline dry cell with a high capacity having a superior liquid leak resistant property. In this alkaline dry cell, the thickness of the trunk portion of an external can is made thinner than 0.18 mm, and the thickness of the sealing edge portion of the external can is set to not less than 1.4 times the thickness of trunk portion. An anode terminal plate is used as a supporting member for a sealing member. Over the entire outer circumferential portion of the anode terminal plate is placed a curved portion having an average curvature radius of not more than 1 mm, which shows a virtually C-letter shape or an arc shape in its cross-section obtained by cutting the anode terminal plate through its center in the thickness direction.

The invention belongs to the technical field of construction engineering and relates to a waterstop structure at the junctions of occlusive piles and a diaphragm wall. Occlusive pile concrete piles and occlusive pile plain piles are arranged alternately and are occluded mutually to form the occlusive piles. The diaphragm wall is occluded with the adjacent occlusive pile plain pile. Steel floral tubes are welded to a reinforcement cage on the side adjacent to the diaphragm wall and the adjacent occluded occlusive pile plain pile. Grouting tubes are buried on the outer side of the junctions between the occlusive pile plain piles and the diaphragm wall. Jet grouting piles are arranged on the outer side of the junctions between the occlusive pile plain piles and the diaphragm wall. Through a series of structures and measures that the diaphragm wall is occluded with the adjacent occlusive pile plain pile, the steel floral tubes are buried between a wall body of the diaphragm wall and the occlusive piles, the two rows of the grouting tubes are driven on the outer side of the junctions between the diaphragm wall and the occlusive piles and the jet grouting piles are arranged on the outerside of the occlusive piles and the diaphragm wall, the problem existing in waterstop at the junctions between the occlusive piles and the diaphragm wall is solved, the waterproof and anti-leaking properties of the junctions are improved, and the stability and safety of the foundation pit are enhanced.

The invention discloses a caulking device and a caulking method for building facing bricks, which are suitable for sticking construction of various building exterior wall facing bricks and outdoor paving bricks. The device comprises a mortar stirring and pressing device, a conveying hose and a caulked joint mouth. After the exterior wall facing bricks are stuck, stirred caulking mortar is poured into the mortar stirring and pressing device and conveyed to the caulked joint mouth by the hose with the rotation of the mortar stirring and pressing device; a handheld switch controls mortar output; the caulked joint mouth is aimed at a brickwork joint at an angle of 45 degrees to shove mortar to caulk the brickwork joint; and a mortar pressing spring arranged on the caulked joint mouth presses the mortar into a smooth semi-circle groove. The device and the method can caulk compact and beautiful facing brick brickwork joint, improve the waterproof performance of the exterior wall, and solve the technical problems of difficult cleaning of the facing bricks, environmental pollution and facing brick pollution which are caused by the prior full plastering caulking. The method has the advantages of simple process, convenient construction, great cleaning water and labor conservation, environmental protection, construction cost conservation, excellent economic, environmental-protection and social benefits.

The invention provides a flexible-elastic shape-stabilized temperature-controlled multifunctional phase-change material and a preparation method thereof. The flexible-elastic shape-stabilized temperature-controlled multifunctional phase-change material comprises the following raw materials in percentage by mass: 75-85% of paraffin alkane phase-change material, 12-20% of olefin block copolymer, 2-8% of hydrogenated styrene butadiene block copolymer and 0.5-1% of cross-linking agent. The material is excellent in soft and elastic shaping effect, high in energy storage density and good in temperature control effect, and the phase change temperature within 18-65 DEG C is adjustable. The invention also provides a preparation method of the flexible-elastic shape-stabilized temperature-controlledmultifunctional phase-change material. The preparation method is wide in raw material source, low in cost, simple, environmentally friendly, safe and non-toxic, and the problems that in the prior art,the preparation process is complex, mass production is difficult, and the obtained material is limited in performance are effectively solved.

The invention relates to a processing method of a light foamed concrete decorating building block and belongs to the technical field of energy-saving building materials. By adequately utilizing the properties of waste glass, the building block is low in density and low in cost, has good thermal insulation, anti-cracking and decorative effects, and a preparation process is simple. The light foamed concrete decorating building block is prepared from the following components: cement, broken glass particles, coal ash, mica flakes, a modifying agent and water, wherein the broken glass particles comprises the following broken glass particles of different particle sizes in percentage by weight: 9%-20% of broken glass particles with the particle sizes of larger than 4.75mm, 45%-62% of broken glass particles with the particle sizes of 4.75mm-2.36mm, 13%-25% of broken glass particles with the particle sizes of 2.36mm-1.18mm, 10%-19% of broken glass particles with the particle sizes of 1.18mm-0.60mm, 4%-12% of broken glass particles with the particle sizes of 0.60mm-0.30mm and 3%-8% of broken glass particles with the particle sizes of smaller than 0.30mm. The light foamed concrete decorating building block produced by virtue of the processing method is light concrete with a porous structure, and the shrinking percentage of the light concrete is very high and is equal to 5-10 times of that of normal concrete; if glass involves in an alkali-aggregate reaction and is expanded, the structure of the foamed concrete decorating building block is not damaged, however, the shrinking of the foamed concrete decorating building block is compensated by virtue of micro-expansion generated by the alkali-aggregate reaction, so that the volume stability of the light foamed concrete decorating building block is improved; the light foamed concrete decorating building block is high in compressive strength and fire resistance, good in decorative effect and durability and extremely high in leakage resistance.

The invention discloses a totally-prefabricated prestressed concrete floorslab structure and a prestressed assembling method. The structure comprises prestressed floor slabs, support members and post-casting concrete poured among the prestressed concrete floor slabs and support members. In each support grid formed by the support members (beams or walls) arranged criss-cross, a complete precast floor slab is contained. Prestressed rebars are arranged on the inner bottoms of the prestressed floor slabs. The tops of the prestressed rebars are equipped with ordinary reinforced steel bars. The prestressed rebars and the ordinary reinforced steel bars extend along slab edges. The assembling method comprises following steps: 1, making the prestressed floor slabs; 2, transporting, hoisting, constructing and supporting the prestressed floor slabs; 3, temporarily applying loads to the prestressed floor slabs; 4, post-casting concrete to slab joints and maintaining; 5, removing temporary and partial loads. The totally-prefabricated prestressed concrete floorslab structure and the prestressed assembling method have following beneficial effects: defects of a conventional laminated floor slab system such as a large number of bonding and pouring work on the spot are solved; and a totally-prefabricated prestressed concrete floor slab has great resistance to leakage and is connected integrally.

The invention discloses a self-adhesive waterproof roll material for color steel roofs of buildings. The self-adhesive waterproof roll material is of a multilayer layered structure. A covering layer, a self-adhesive waterproof layer, a non-woven fabric reinforcement layer, another self-adhesive waterproof layer and a partition layer are sequentially combined with one another to form the multilayer layered structure, and the self-adhesive waterproof layers comprise modified asphalt mixtures made of asphalt, base oil, resin, recycled butyl rubber powder and calcite powder. A method for manufacturing the self-adhesive waterproof roll material includes adding the asphalt and the base oil into a reaction kettle according to weights, heating and stirring the asphalt and the base oil to remove water so as to obtain first mixtures, adding the resin into the first mixtures when the temperatures of the first mixtures reach certain temperatures, stirring the resin, uniformly dissolving the resin to obtain second mixtures, adding the recycled butyl rubber powder into the second mixtures when the temperatures of the heated second mixtures reach certain temperatures, stirring the recycled butyl rubber powder to obtain third mixtures, adding the calcite powder into the third mixtures, stirring the calcite powder to obtain fourth mixtures, cooling the fourth mixtures to obtain the modified asphalt mixtures; coating the modified asphalt mixtures on polyester felt and fiber glass gridding cloth composite felt to obtain the finished roll material. The self-adhesive waterproof roll material and the method have the advantages that the self-adhesive waterproof roll material is superior to all other domestic self-adhesive roll materials of the same category and is high in high-temperature-resistant property and practicality; sunlight can be effectively reflected by the covering layer, accordingly, the self-adhesive waterproof roll material is high in heat-insulation and aging-resistant properties and adhesion, and the temperatures of the roofs can be effectively lowered.

The invention discloses an integrated anti-leakage energy-saving noise reduction roof system which comprises a plurality of roof purlines and a compression metal roof. The roof purlines are mounted on a building, the compression metal roof is mounted on the roof purlines, a roof support structure is mounted on the compression metal roof and comprises supports and transverse beams, the supports are fixedly mounted on the compression metal roof, the transverse beams are arranged on the supports, rigid polyurethane foam is sprayed on the compression metal roof, waterproof ventilation films are laid on the rigid polyurethane foam, a noise reduction screen mesh covers the waterproof ventilation films, and an additional compression metal plate roof layer which is fixedly mounted on the transverse beams is arranged on the noise reduction screen mesh. The integrated anti-leakage energy-saving noise reduction roof system has the advantages that the anti-leakage capacity of the integral roof can be effectively improved, obvious energy-saving and heat-insulation effects can be realized, and noise in houses can be effectively lowered.

A prefabricated hollow reinforced concrete slab features that its both ends have the extended platforms at the bottom and the extended reinforcing bars for butt connection of two said slabs by welding and pouring concrete. Its advantages are high connection strength and high integrity.

The invention discloses a protective film for preventing infrared laser information leakage and electromagnetic information leakage. The protective film comprises a substrate layer; a conductive metal layer attached to the substrate layer in a sputter coating mode; a nanometer semiconductor layer attached to the conductive metal layer in a sputter coating mode; a nanometer heat-sensitive material layer attached to the nanometer semiconductor layer in a sputtering mode or a coating mode; a nanometer infrared absorption layer attached to the nanometer heat-sensitive material layer in a coating mode or a sputter coating mode; a nanometer photoluminescence layer bonded on the nanometer infrared absorption layer; a mounting adhesive layer adhered to the nano photoluminescence layer; and a protective layer adhered to the mounting adhesive layer. According to the invention, infrared laser information leakage and electromagnetic information leakage can be effectively prevented at the same time, and for infrared laser intrusion, the position of an infrared laser intrusion point on the protective film can be detected in real time, and an intrusion mark can be observed by naked eyes within a period of time after the intrusion infrared laser is removed.

The invention relates to a waterproof permeability resisting method that is composed of the following steps: Locate water leakage points on a cleaned working plane and block water leakage points with collision category materials, in order to form a water cut-off layer; after the collision category materials are thoroughly dry without adhesive property, clean the loosened collision category materials and uniformly coat the overall working plane with 2 to 10 layers of rigid waterproof paints, so as to form an reinforced layer; after the reinforced layer surface is not loosened, coat a paint to form a seal layer. The invented waterproof permeability resisting method adopts multi-layered materials and multi-ringed techniques to treat water seepage areas. The invention has advantages of high permeability resistance and long permeability resisting period, so that both the safety and maintenance periods are over five years; moreover, the invention also has rather perfect metal corrosion prevention properties and permeability and leakage resisting effects for gas.