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620results about How to "Improve closure" patented technology

Novel modified emulsifying olefin concrete curing agent

ActiveCN101298373ASave labor, time and waterEasy to use in constructionParaffin waxAcrylic polymer
The invention relates to a novel modified emulsified paraffin concrete curing agent. Aiming at overcoming the defects that the existing concrete curing agent cannot reach the industrial standard on building material in terms of the water retention property and is unfavorable for environmental protection, the price is high and the decoration at later stage is also affected, the following technical proposal is provided: the curing agent is mixed with the following materials and water: 10-20% of vinyl acetate-ethene high molecular polymer emulsion, 0-5% of silicone resin modified acrylic polymer emulsion, 50-75% of paraffin emulsion, 0.1-0.5% of colloidal dispersing agent of the emulsified paraffin for stabilizing the emulsion state and 0.05-0.02% of special defoamer for emulsion. The invention has the beneficial effects that: the chemical curing method which is adopted for retaining water is an innovation for the traditional curing method; compared with the prior art, the method is labor-saving, time-saving and water-saving and is convenient to operate, can improve the film formation ability and the sealing ability of the emulsified paraffin emulsion, and can improve the bonding and absorbing capacity of the emulsified paraffin emulsion on the concrete surface, which leads the effective water retention rate of the coating film to reach more than 90%.
Owner:LIAONING BUILDING SCI RES INST

Separately-built type rainwater storage system

InactiveCN102776949ARealization of regulation and storage functionConducive to drainage regulation and storageFatty/oily/floating substances removal devicesSewerage structuresEngineeringSewage
The invention discloses a separately-built type rainwater regulation system, which is arranged on a plurality of different confluence tubes. The regulation system comprises a first interception well, a second interception well, a regulation tube, and filter layers which are arranged in the first interception well and the second interception well respectively; the first interception well is provided with a sewage interception tube which extends to a sewage plant, a drainage port connected with a river channel, and an end water inlet connected with the end parts of the confluence tubes; and the second interception well is provided with an initial rain interception tube which extends to the regulation tube, and a side water inlet connected with the side parts of the confluence tubes. The separately-built type rainwater regulation system disclosed by the invention is suitable for the current situation as well as still convenient and realizable in case of an insufficient site; simultaneously, the interception effect can be greatly improved, and the intercepted drought flow sewage is intercepted in the sewage treatment plant and rainwater is intercepted in the regulation tube, so as to reduce pollution on the river channel, and improve the regulation capacity of urban drainage.
Owner:SHANGHAI URBAN CONSTR DESIGN RES INST GRP CO LTD

Dry weather flow and initial rainwater multifunctional catch basin for combined network

The invention discloses a dry weather flow and initial rainwater multifunctional catch basin for a combined network. The dry weather flow and initial rainwater multifunctional catch basin for the combined network comprises a basin body. The basin body is provided with an interceptor sewer extending to a sewage plant, an initial rainwater interceptor extending to a regulation and storage pipe, a water outlet communicated with a river channel, and a water inlet communicated with a combining pipe. The catch basin further comprises a filter layer disposed in the basin body. The filter layer is disposed between the water inlet and the water outlet so that a water inlet area close to one side of the water inlet and a water outlet area close to one side of the water outlet form in the basin body. The filter layer comprises a stop board disposed on the upper portion of the basin body, an overflow weir disposed on the lower portion of the basin body and a filter net disposed between the stop board and the overflow weir. The stop board is provided with through holes. The dry weather flow and initial rainwater multifunctional catch basin for the combined network has the advantages that the multifunctional catch basin is convenient to implement, the filter layer can be cleaned automatically, intercepting effect is improved, service life of the catch basin is prolonged, and river channel pollution is reduced.
Owner:SHANGHAI URBAN CONSTR DESIGN RES INST GRP CO LTD

Construction method of drainage pipeline

The invention discloses a construction method of a drainage pipeline. The construction method comprises the following steps that 1, construction preparation is conducted; 2, a pipe groove is excavated; 3, a flat foundation and a cement solidified layer are constructed; 4, a prefabricated pipeline base is hoisted; 5, the pipeline is mounted; 6, a grouting closed body is constructed; 7, concrete backfill construction is conducted, specifically, formworks are inserted into formwork grooves in the two sides of the prefabricated pipeline base, meanwhile, same formworks are arranged at the two ends in an enclosing mode, concrete pouring backfill is conducted, and after concrete is initially set, the formworks are dismantled; and 8, gravel backfill is constructed. Positioning strips are connected to one sides of the formworks, positioning grooves are formed in the prefabricated pipeline base, supporting rods are inserted into the positioning grooves, and the ends, away from the positioning grooves, of the supporting rods are inserted into the included angle positions between the formworks and the positioning strips so as to abut against the formworks and the positioning strips simultaneously. The construction method has the beneficial effects that supporting to the formworks can be strengthened during concrete backfill, and the situation that the formworks are likely to be bent is avoided.
Owner:温州垠星建设有限公司

Vacuum drainage anchor rod and construction method thereof

The invention provides a vacuum drainage anchor rod and a construction method thereof. The anchor rod is composed of an anchoring system and a vacuum drainage system; a thread is arranged at the frontend of each hollow anchor pipe, the middle rear part of each hollow anchor pipe is connected with a slurry outlet pipe, water permeable holes are formed in each hollow anchor pipe which is wrapped bya filter screen, a rubber sleeve valve and a geotextile bag sleeve an opening of each slurry outlet pipe, and each geotextile bag is clamped in the corresponding hollow anchor pipe through a hoop; the hollow anchor pipes are obliquely arranged in a slope, pressure grouting is conducted on the interior and the periphery of the front end of each hollow anchor pipe, and the hollow anchor pipes are anchored on backing plates through anchorage devices; a controller and a vacuum pump are installed outside the slope; moisture meters are embedded in the slope and connected with the controller; waterabsorbing pipes penetrate through sealing covers and are inserted into the hollow anchor pipes, connected with a drain pipe through sealing joints and connected with the vacuum pump; the controller and the vacuum pump are switched on, pumping starts to be conducted, a negative pressure zone is formed in each hollow anchor pipe, and the water in the slope enters a water suction pipe and then is discharged out of the slope. Accordingly, the structure is simple, anchorage and drainage can be achieved simultaneously, a good effect is achieved, construction is easy, and the manufacturing cost is low.
Owner:NINGXIA UNIVERSITY

Sealing agent for aluminum and aluminum alloy anode oxide films and preparation method for sealing agent

The invention discloses a sealing agent for aluminum and aluminum alloy anode oxide films and a preparation method for the sealing agent. The sealing agent comprises the following raw materials by lL: 15-20g of lanthanide nitrate, 0.6-0.8g of oxidizing agent, 0.25-0.3g of stabilizing agent and deionized water, wherein the additive amount of the deionized water is the amount of adding the deionized water until the volume is constant at 1L after the rest raw materials are mixed. According to the sealing agent disclosed by the invention, by utilizing the combined action of rare-earth metal and the oxidizing agent, porous layers of the anode oxide films can be effectively sealed, and the corrosion resistance of the anode oxide films is obviously improved. Meanwhile, the sealing agent disclosed by the invention does not contain chromium, nickel or fluorine, therefore, the human body cannot be harmed, and the environment cannot be polluted. The sealing agent is a green environmental-protection sealing agent. Moreover, the aluminum and aluminum alloy anode oxide films can be sealed at normal temperature, therefore, not only is the energy consumption reduced but also the operation convenient is improved. After being treated by the sealing agent disclosed by the invention, the aluminum and aluminum alloy anode oxide films are compact in surface structure, is in uniform golden yellow and is higher in bonding strength.
Owner:HEFEI UNIV OF TECH

High-wear-resistance water-based plastic coating and preparation method thereof

The invention discloses a high-wear-resistance water-based plastic coating and a preparation method thereof. The invention belongs to the technical field of water-based paint. The invention solves thetechnical problems of insufficient adhesion and poor wear resistance of the existing water-based paint on the plastic base material. The product disclosed by the invention is formed by mixing a component A and a component B which are independently packaged when in use, wherein the component A is prepared from water-based resin A, water-based resin B, graphene and carbon nanotube composite slurry,pigments, fillers and other assistants and 5-10 parts of deionized water; and the component B is prepared from auxiliaries such as a curing agent and deionized water. According to the invention, thewater-based resin B is micromolecular resin; the water-based resin B has excellent permeability, partially permeates into a base material to form a film and increase the adhesive force, the water-based resin A is macromolecular resin and has good sealing film-forming property, and the resins with different molecular weights are compounded for use, so that the sealing property, the water resistance, the weather resistance, the mechanical property and the like of a coating film can be improved, and the coating film has excellent adhesive force.
Owner:哈尔滨金纳科技有限公司

High-adhesion water-based waterproof primer as well as preparation method thereof and application thereof

ActiveCN108456475AGood film formingImprove coating penetration and adhesionPriming paintsMagnesiumHardness
The invention discloses high-adhesion water-based waterproof primer as well as a preparation method thereof and application thereof. The high-adhesion water-based waterproof primer is prepared from the following components in parts by weight: 25-32 parts of composite emulsified polymer emulsion, 2.8-3.3 parts of coupling film-forming agent, 0.6-1 part of hydroxyethyl cellulose, 15-18 parts of titanium dioxide, 4-6 parts of barium sulfate, 4-6 parts of calcium carbonate, 4-6 parts of talcum powder, 1-2 parts of dispersing agent, 0.5-1 part of wetting leveling agent, 0.2-0.4 part of de-foaming agent, 0.2-0.3 part of preservative, 1.8-2.2 parts of anti-freezing agent, 0.1-0.3 part of rheological agent, 0.1-0.3 part of pH regulator, 0.4-0.8 part of thickening agent and 24-31 parts of water. The high-adhesion water-based primer has excellent film-forming property, hardness, flexibility, water resistance, chemical resistance, sealing property, seepage force and adhesion, can be effectively dissolved and permeated into an organic silicon mould release agent on novel material plates such as an art ware, a cement product, a glass magnesium board and a special cast sectional material, is inseamless engagement with the board, and achieves the practical effect of improving coating quality and field construction environment. Moreover, the preparation method is easy, is low in cost, is simple in construction way, and reduces production and construction cost.
Owner:ZHANG ZHOU SAN PAINTS

Liquid heat dissipation structure for motor controller

A liquid heat dissipation structure for a motor controller comprises a heat dissipation plate main body and a cover plate arranged in parallel with the heat dissipation plate main body; wherein the heat dissipation plate main body comprises a heat dissipation substrate, a side plate with a liquid inlet and a liquid outlet, a plurality of flow baffles, and a plurality of diversion fin groups; the side plate is perpendicular to the heat dissipation substrate, a semi-closure containing cavity is enclosed by the side plate and the heat dissipation substrate; and the flow baffles and the diversion fin groups are arranged in the containing cavity. The liquid heat dissipation structure has the advantages that: with the design of at least two S-shaped main flow channels connected in series and the diversion fin groups, a flow diversion function is provided, and at the same time, dissipation of the heat in the motor controller is effectively accelerated; with the design of S-shaped bosses, which are in seamless connection with the S-shaped main flow channels on the heat dissipation substrate, on the cover plate, closure of the motor controller is improved, and at the same time, liquid having the heat dissipation effect can flow orderly between the main flow channels and secondary flow channels, so as to achieve the purpose of liquid heat dissipation.
Owner:WISDRI WUHAN AUTOMATION

Low-temperature sintering high-heat conduction ceramic paint suitable for metal base material and preparation method and application thereof

The invention discloses a low-temperature sintering high-heat conduction ceramic paint suitable for metal base material and a preparation method and an application thereof. The paint comprises the following raw materials: low-temperature molten glass powder, iron oxide red, copper-chrome black, cerium dioxide, boron nitride, iolite micro powder, alumina micro powder, chromium sesquioxide micro powder, 20-50% of silicon aluminium sol, 0.5-3% of an auxiliary agent, and the balance of water. The method comprises the following steps: a metal matrix is processed, then the surface of the metal matrix is uniformly coated with a paint and dried in shade; and the coated metal matrix is heated at the temperature of 650-900 DEG C to form the low-temperature sintering high-heat conduction ceramic paint. The paint has the advantages of easy acquisition of the raw materials and low cost, is tightly combined with the metal matrix, has effective high temperature oxidation resistance, acid corrosion resistance and abrasion resisting effects of a heating furnace flue heat exchanger on a metal heat exchanger, ceramic coating surface is smooth and clean, slag buildup of the heat exchanger is effectively reduced, the service life of the metal heat exchanger is prolonged, and the heat exchange efficiency effect is increased.
Owner:武汉钢铁有限公司

Semi-active dynamic vibration absorber for magneto-rheological elastomers and selection and installation method

ActiveCN107939901ASuppress vertical vibrationAchieve broadband vibration reductionSpringsNon-rotating vibration suppressionElastomerSemi active
The invention discloses a semi-active dynamic vibration absorber for magneto-rheological elastomers and a selection and installation method. According to the semi-active dynamic vibration absorber andthe selection and installation method, multiple layers of cross-shaped cross beams arranged in parallel are fixed to the positions below a bottom frame base located at the bottom of a railway vehiclein a suspended mode through four vertical magnetic conductive rods arranged vertically and penetrating through the four end parts of cross-shaped beam arms; multiple layers of stacked structures which are spaced from each other are formed between multiple layers of grooving vibrators and the cross-shaped cross beams; vertical mounting through holes are formed in the centers of the cross-shaped cross beams; the annular magneto-rheological elastomers are arranged between the mounting through holes and a connecting shaft of the multiple layers of grooving vibrators; the multiple layers of grooving vibrators can vibrate up and down relative to the bottom frame base in the axial direction of the mounting through holes; winding grooves are formed in the beam arms of the cross-shaped cross beams; and excitation coils are wound in the winding grooves. The semi-active dynamic vibration absorber has the advantages that the vibration absorption effect is good, the energy consumption is small, the structure is simple and compact, the installation is easy, the safety and the reliability are high, the utilization of the residual space under the railway vehicle is reasonable, and vertical wide-frequency vibration reduction can be carried out on a railway vehicle body which suffers form an abnormal vibration problem due to the fact that a railway is unsmooth.
Owner:SHANGHAI UNIV OF ENG SCI

Automatic fire extinguishing device suitable for small power distribution cabinet

The invention discloses an automatic fire extinguishing device suitable for a small power distribution cabinet. The device comprises a fixing box. A cylindrical barrel is fixedly mounted on the innertop wall of the fixed box. The bottom end of the cylindrical barrel is fixedly connected with a conical barrel. The bottom of the cylindrical barrel penetrates through the bottom wall of the fixed boxand extends to the outer side of the fixed box. A plurality of first storage boxes, a plurality of second storage boxes and a plurality of heat-resisting pipelines are symmetrically arranged on the inner side wall of the fixing box, each first storage box is provided with an opening mechanism and communicates with the corresponding heat-resisting pipeline through the opening mechanism, and an isolation mechanism is arranged in the cylindrical barrel. The fire extinguishing device is reasonable in structure, easy to install and suitable for small power distribution cabinets of various specifications. The device can automatically extinguish fire at the fire occurrence position at the initial stage of fire or in the smoldering state of an object, does not need manual monitoring, omits the process that managers discover the fire and find fire extinguishing device, and can remarkably reduce adverse effects caused by the fire.
Owner:HEFEI SHENDIAO HOISTING MACHINERY
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