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31results about How to "Guaranteed to resist pressure" patented technology
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Hydrophobic modified expanded perlite thermal insulation board and production method thereof
ActiveCN105948638AExcellent fire performanceImprove fire performanceSolid waste managementCeramic shaping apparatusSodium silicateEmulsion
The invention discloses a polyacrylate enhanced modified expanded perlite thermal insulation board and a production method thereof. The modified expanded perlite thermal insulation board comprises the following components, by weight: 25-40 parts of cement, 5-8 parts of fly ash, 2-5 parts of triethoxysilane, 5-10 parts of polyacrylate emulsion, 50-70 parts of modified expanded perlite, 0.7-2.9 parts of sodium dodecylbenzenesulfonate, 5-10 parts of additives, 1-3 parts of quicklime, 0.1-0.5 parts of PP fiber, 0.5-2 parts of carbon fiber, 5-10 parts of diatomite, 4-10 parts of sodium silicate and 10-20 parts of water. According to the modified expanded perlite thermal insulation board, cement, fly ash, diatomite, PP fiber and other organics and inorganics are adopted as raw materials, such that industrial and mining waste materials are effectively utilized, and no toxic or harmful substance is added. Therefore, the modified expanded perlite thermal insulation board is green and environment-friendly. The modified expanded perlite thermal insulation board has the advantages of wide raw material source and low cost. The production process is simple and is easy to operate. With the thermal insulation board, requirements by different building materials can be satisfied, and good social and economic benefits are provided.
Owner:XINYANG CITY OF CRYSTAL ENG MATERIALS CO LTD
Straw fiber-reinforcing spraying-type phosphorus gypsum-based fireproof mortar as well as preparation method and application thereof
The invention discloses a straw fiber-reinforcing sprayspraying-type phosphorus gypsum-based fireproof mortar as well as a preparation method and application thereof, which belongs to the technical field of construction materials. The straw fiber-reinforcing sprayspraying-type phosphorus gypsum-based fireproof mortar is prepared from the following raw materials by weight percentage: 65 to 85 percent of composite cementing material, 10 to 30 percent of light-weight fine aggregates, 0.6 to 2.8 percent of carbon fibers, 0.2 to 1.5 percent of straw fibers, 0.4 to 2.5 percent of macromolecular polymer, 0.8 to 2.4 percent of an organic silane coupling agent, and 0.1 to 0.5 percent of a high-performance compound water reducing agent. The straw fiber-reinforcing spraying-type phosphorus gypsum-based fireproof mortar is characterized in thatBy adopting the technical scheme of the invention, the fireproof capability of the mortar can be effectively improved, so that the fire risk of the steel structural building can be reduced, and the mortar material is convenient in construction and application and firm in combination with the steel structural building.
Owner:MAANSHAN MCC17 ENG TECH CO LTD
Plastic building template system
ActiveCN102061805AHigh strengthImprove bindingForming/stuttering elementsEngineeringSurface flatness
The invention relates to a plastic building template system. The system comprises first templates which are spliced together to form a plane template system, and second templates which are spliced with the first templates to form corners, wherein, plane connecting heads are formed on spliced edges of the first templates; the second templates form corner connecting heads on spliced edges between the second templates and the first templates; and the plane connecting heads are coupled with the corner connecting heads so that seams of the building template system have higher strength and better binding tightness and meanwhile external surfaces of panels at two sides of the neighboring templates are respectively limited on the same plane at the same side, thus the surface of the building template system close to a grouting side is flat, and the surface flatness of the building after cast molding is ensured.
Owner:王亚运
Rainwater management system
ActiveCN113775020AReduce hedgingReduce deliverySewerage structuresGeneral water supply conservationSiphonWater management system
The invention relates to the field of drainage, in particular to a rainwater management system capable of quickly draining rainwater. The rainwater management system comprises a drainage plate, a drainage network and a permeable layer, wherein the permeable layer covers the drainage network, and the drainage network at least comprises a unit area, a plurality of siphon variable-flow devices which are distributed on the periphery of the unit area and are connected through drainage grooves and are used for discharging water out of the unit area, a plurality of variable-flow drainage devices which are distributed on nodes of the drainage network in the unit area and are connected with one or more siphon variable-flow devices through drainage grooves so as to directionally guide water in different positions in the unit area to the siphon variable-flow devices and drainage plates which are distributed among the drainage grooves and are used for receiving water permeated from the permeable layer in the unit area and guiding the water into the drainage grooves. The relation among the drainage plates, the drainage grooves, the variable-flow drainage devices and the siphon variable-flow devices are reasonably arranged, so that the drainage efficiency is improved step by step, and an efficient drainage system is formed.
Owner:KESHUN WATERPROOF TECH CO LTD
Separation system for removing biotite from artificial sand
InactiveCN106733176ASimple structureAchieve the purpose of eradicatingMagnetic separationManufacturing technologyEngineering
The invention discloses a separation system, particularly discloses a separation system for removing biotite from artificial sand, and belongs to the technical field of design and manufacturing of water-power engineering building material production equipment. The separation system for removing biotite from artificial sand is convenient to operate, simple in structure and capable of effectively removing biotite from artificial sand. The separation system comprises a magnetic selection mechanism and a material separation mechanism. When biotite mixed in artificial sand runs in the material separation mechanism along with the artificial sand, the biotite is separated out of the artificial sand through the magnetic selection mechanism.
Owner:POWERCHINA CHENGDU ENG
Marine oil field drill head
ActiveCN108035681AEnsure Adaptive LifeNot easy to wearFireproof paintsEarth drilling toolsWell drillingOil field
The invention discloses a marine oil filed drill head. The marine oil filed drill head mainly comprises a connecting rod and a drill body, the top of the drill body is fixedly connected with a base plate of the connecting rod, the drill body comprises a drill head body and multiple auxiliary drills, the auxiliary rods are arranged on the substrate end face of the drill head body, the drill head body is conical, grinding particles are uniformly fixed to the auxiliary rods, a water opening is formed between two adjacent auxiliary rods and is in a streamline shape, the auxiliary rods are enclosedin an arc shape with the drill head body being the center axis, the bottom of the auxiliary drill is slightly lower than the bottom of the drill head body, and a hard alloy layer is fixed to the bottom of the drill head body. The marine oil filed drill head is simple in structure, practical, safe and convenient to use, the diving efficiency of well drilling can be effectively ensured, the adapting service life of the drill body is also ensured, the drill head body is utilized to lead drilling with the point, then the auxiliary drills are utilized to conduct drilling with the surface, it is ensured that a rock stratum can be firstly cracked under the leading effect of the drill head, through whole surface drilling of the auxiliary drills, the practical effect can be ensured, and the practicability is ensured.
Owner:河北锐石钻头制造有限公司
Interior wall putty capable of eliminating formaldehyde
InactiveCN103351689AImprove environmental performanceEnhance heat insulation effectFilling pastesEmulsionCalcium carbonate
The invention discloses interior wall putty capable of eliminating formaldehyde. The interior wall putty comprises the following raw materials in parts by weight: 12-16 parts of diatomite, 8-10 parts of purified attapulgite, 14-18 parts of heavy calcium carbonate, 5-7 parts of nanoscale porous silicon dioxide, 5-7 parts of tourmaline powder, 3-5 parts of zinc oxide micropowder, 1-2 parts of pregelatinized starch of cassava, 3-5 parts of a pure acrylic emulsion, 2-3 parts of polyacrylonitrile fibre, 1-2 parts of a dispersant and 4-6 parts of titanium dioxide. The putty disclosed by the invention has the advantages of novel water resisting putty and further has the effect of eliminating formaldehyde so as to purify air.
Owner:ANHUI KAILIN ADVANCED MATERIAL CO LTD
Fiber-reinforced modified expanded perlite thermal insulation board and production method thereof
ActiveCN105948637BImprove fire performanceHigh strengthCeramic shaping apparatusEnvironmental resistanceCarbon fibers
The invention discloses a fiber-reinforced modified expanded perlite thermal insulation board and a production method thereof. The thermal insulation board comprises the following components, by weight: 18-25 parts of cement, 5-8 parts of fly ash, 2-5 parts of popyltrimethoxysilane, 5-10 parts of polyacrylate emulsion, 50-70 parts of modified expanded perlite, 0.7-2.9 parts of sodium dodecylbenzenesulfonate, 5-10 parts of additives, 0.1-0.5 parts of PP fiber, 0.5-2 parts of hydroxypropyl methylcellulose, 3-5 pars of zirconia fiber, 1-3 parts of carbon fiber and 10-20 parts of water. According to the modified expanded perlite thermal insulation board, cement, fly ash, PP fiber and other organics and inorganics are adopted as raw materials, such that industrial and mining waste materials are effectively utilized, and no toxic or harmful substance is added. Therefore, the modified expanded perlite thermal insulation board is green and environment-friendly. The modified expanded perlite thermal insulation board has the advantages of wide raw material source and low cost. The production process is simple and is easy to operate. With the thermal insulation board, requirements by different building materials can be satisfied, and good social and economic benefits are provided.
Owner:XINYANG CITY OF CRYSTAL ENG MATERIALS CO LTD
Capacitor core packet wrapped by puller adhesive tape
InactiveCN103779076AGuaranteed to resist pressureGuaranteed insulation performanceFixed capacitor housing/encapsulationEngineeringAdhesive
The invention discloses a capacitor core packet wrapped by puller adhesive tape. According to the capacitor core packet, the periphery of a core packet of a welded CP wire is wrapped by the puller adhesive tape, the width of the puller adhesive tape should be larger than that of the core packet by 1cm so that edge openings of 0.5cm can be formed around metal spraying layers of the two sides after wrapping, the protruding part is sealed through epoxy resin after the core packet is wrapped by the puller adhesive tape, and the CP wire of the leading-out end of a capacitor penetrates through the epoxy resin sealing layer of the capacitor. The capacitor core packet overcomes the defects in the prior art, and is a non-shell sealing structure which is low in material price, simple in process and attractive in appearance.
Owner:铜陵市佳龙飞电容器有限公司
Pre-tensioning pre-stressed pipe pile connector and pipe pile connecting method
PendingCN109322305AGuaranteed to resist pressureSimple structureBulkheads/pilesPre stressingPre stress
The invention discloses a pre-tensioning pre-stressed pipe pile connector and a pipe pile connecting method, and belongs to the technical field of weak foundations of buildings. The pre-tensioning pre-stressed pipe pile connector comprises a pre-stressed main bar anchoring end plate and a tensioning anchoring end plate, wherein the pre-stressed main bar anchoring end plate and the tensioning anchoring end plate are parallel to each other and are connected through a main cylinder; and anchoring rods used for anchoring a pre-stressed pipe pile main bar are formed in the pre-stressed main bar anchoring end plate, and bolt holes opposite to the anchoring holes are formed in the tensioning anchoring end plate. The pre-tensioning pre-stressed pipe pile connector is anchored to the connection endof a pipe pile so that an upper pipe pile and a lower pipe pile can be connected directly through anchoring bolts, concrete and steel at the joint of the pipe piles are prevented from being damaged,and the crush resistance, bending resistance and pulling resistance of the pipe piles are ensured; the structure is simple, and the construction efficiency is effectively improved; and in addition, when a prestressed pipe pile is manufactured, the bolt holes can be matched with an external flange plate to control the tension of the pre-stressed main bar.
Owner:常德定海管桩有限公司
Anterior atlantoaxial fixing plate and making method
ActiveCN108378915AReduce secondary damageImprove stress resistanceAdditive manufacturing apparatusInternal osteosythesisComputed tomographyRegion growing
The invention relates to a making method of an anterior atlantoaxial fixing plate. The making method comprises the following steps: acquiring atlantoaxial CT data of a patient; obtaining a three-dimensional atlantoaxial model through threshold setting and a region growing operation; implementing 3D printing and reduction on the atlantoaxial model; making an anterior atlantoaxial fixing plate model, conducting CT scanning and establishing a three-dimensional anterior atlantoaxial fixing plate model and a curved surface model; introducing the cured surface model into digital model carving software and conducting detail processing; conducting a rolling-over operation on the curved surface model, and further processing a solid mold; and pouring a mineralized collagen-base composite material into the mold and implementing molding, so that the anterior atlantoaxial fixing plate is obtained. The invention also relates to the anterior atlantoaxial fixing plate. According to the invention, theanterior atlantoaxial fixing plate is made in accordance with data of patients, so that the anterior atlantoaxial fixing plate can achieve good embedded matching with an atlantoaxial segment; and theanterior atlantoaxial fixing plate can be installed just by adjusting the position, relative to the atlantoaxial segment after reduction, of the anterior atlantoaxial fixing plate in an operation; therefore, the anterior atlantoaxial fixing plate is simple to operate, and a complex process of secondary molding in the operation is avoided.
Owner:BEIJING ALLGENS MEDICAL SCI & TECH
Preparation method of domestic garbage jelly
InactiveCN102500606AFiber richImprove waterproof performanceSolid waste disposalFirming agentPulp and paper industry
The invention discloses a preparation method of domestic garbage jelly. The preparation method comprises mixing garbage powder and water, evenly mixing, adding in a pasting agent, mixing until garbage pulp turns light green from light brown, adding in a separating agent, evenly mixing, adding in an antiseptic bactericide, mixing until the garbage pulp turns light brown from light green, adding in a curing agent, mixing and obtaining the domestic garbage jelly. The preparation method of the domestic garbage jelly enables domestic garbage to be made into the jelly and be applied to building elements, roads, terraces, walls, mortar, sculpture and the like. The domestic garbage jelly is waterproof, damp-proof and resistant to pressure, bend, high temperature and freezing and the like. The domestic garbage jelly is attractive in surface, environment-friendly, high in adhesion, moderate in draft rate, not subjected to wind and rain and durable in use, does not generate moss, is a burning-free, economical, practical, low-carbon and environment-friendly economic combination body, reduces production cost, and improves social benefits.
Owner:王发东 +1
Composite tunnel waterproof coiled material
InactiveCN107916004AMaintain high and low temperature resistanceGuaranteed to resist pressureEnvironmental resistanceVegetable oil
The invention relates to a waterproof material, in particular to a composite tunnel waterproof coiled material. The composite tunnel waterproof coiled material is characterized by comprising, by weight, 40-60 parts of pine oil, 20-30 parts of plant oil, 10-20 parts of light calcium carbonate, 3-5 parts of chlorinated paraffin, 1-3 parts of plasticizers, 1.5-2.5 parts of stabilizers, 2.5-4.5 partsof color paste, 10-20 parts of styrene-butadiene-styrene block copolymerization and / or atactic polypropylene and 10-20 parts of polybutylene ethylbenzene rubber. The composite tunnel waterproof coiledmaterial has the advantages that the composite tunnel waterproof coiled material comprises reasonable components, and the problem of environmental pollution of composite tunnel waterproof coiled materials in production, construction and use procedures in the prior art can be solved; the composite tunnel waterproof coiled material is green and environmentally friendly, and the performance such asexcellent high-temperature resistance, low-temperature resistance, crush resistance and aging resistance and good flexibility of existing coiled materials can be kept.
Owner:山东蓝盟防腐科技股份有限公司
Rainwater rapid drainage system
ActiveCN113653149AReduce hedgingReduce deliverySewerage structuresGeneral water supply conservationSiphonEnvironmental engineering
The invention relates to the field of drainage, in particular to a rainwater rapid drainage system capable of rapidly draining rainwater. The rainwater rapid drainage system comprises drainage plates, a drainage network and a permeable layer covering the drainage network, the drainage network at least comprises unit areas, a plurality of siphon flow changing devices, a plurality of flow changing drainage devices. The multiple siphon flow changing devices are distributed on the periphery of a unit area and connected through drainage grooves, a siphon flow changing device discharges water out of the unit area; the flow changing drainage devices are distributed on nodes of the drainage network in the unit areas, and the flow changing drainage devices are connected with one or more siphon flow changing devices through the drainage grooves to directionally guide the water at different positions in the unit areas to the suction flow changing devices; and the drainage plates are distributed among the drainage grooves and used for receiving the water permeated from the permeable layer in the unit area and guiding the water into the drainage grooves. According to the rainwater rapid drainage system, by reasonably arranging the relation among a drainage plate, a drainage groove, a flow changing drainage device and a siphon flow changing device, the drainage efficiency is improved step by step, and an efficient drainage system is formed.
Owner:KESHUN WATERPROOF TECH CO LTD
Anterior atlantoaxial fixation plate and preparation method thereof
ActiveCN108378915BReduce secondary damageImprove stress resistanceAdditive manufacturing apparatusInternal osteosythesisPhysical medicine and rehabilitationAtlantoaxial fixation
The invention relates to a making method of an anterior atlantoaxial fixing plate. The making method comprises the following steps: acquiring atlantoaxial CT data of a patient; obtaining a three-dimensional atlantoaxial model through threshold setting and a region growing operation; implementing 3D printing and reduction on the atlantoaxial model; making an anterior atlantoaxial fixing plate model, conducting CT scanning and establishing a three-dimensional anterior atlantoaxial fixing plate model and a curved surface model; introducing the cured surface model into digital model carving software and conducting detail processing; conducting a rolling-over operation on the curved surface model, and further processing a solid mold; and pouring a mineralized collagen-base composite material into the mold and implementing molding, so that the anterior atlantoaxial fixing plate is obtained. The invention also relates to the anterior atlantoaxial fixing plate. According to the invention, theanterior atlantoaxial fixing plate is made in accordance with data of patients, so that the anterior atlantoaxial fixing plate can achieve good embedded matching with an atlantoaxial segment; and theanterior atlantoaxial fixing plate can be installed just by adjusting the position, relative to the atlantoaxial segment after reduction, of the anterior atlantoaxial fixing plate in an operation; therefore, the anterior atlantoaxial fixing plate is simple to operate, and a complex process of secondary molding in the operation is avoided.
Owner:BEIJING ALLGENS MEDICAL SCI & TECH
#-shaped modular splicing truss for fabricated steel structure
ActiveCN113898121AReduce processing costsGuaranteed to resist pressureGirdersJoistsArchitectural engineeringMechanical engineering
The invention belongs to the technical field of civil engineering, and particularly relates to a #-shaped modular splicing truss for a fabricated steel structure. The #-shaped modular splicing truss comprises splicing units and connecting units. U-shaped steel is used as a basic raw material, firstly, an upper node chord member and a lower node chord member are used as fixing foundations, connecting holes are formed in the upper parts of the upper node chord member and the lower node chord member, node web members and side rods are vertically arranged in the middle between the upper node chord member and the lower node chord member so as to form splicing bodies of trapezoid structures, the two same splicing bodies are connected together through an upper main chord member and a lower main chord member so as to form a main body structure with a certain span, then main web members are additionally arranged for stabilization so as to form splicing units with the two ends of I-shaped structures, the splicing body with the two ends of the I-shaped structures is used as a foundation connected with another splicing unit so as to form a structure with a certain length in the horizontal direction, additionally, the four ends which extend out of the two sides can be connected through the connecting rod splicing units in the longitudinal direction so as to form a truss body which can cover a certain area, and more choices are brought to development of a new fabricated steel structure building system.
Owner:HENAN UNIVERSITY
A pre-tensioned prefabricated beam pedestal
Owner:CHINA RAILWAY 23RD BUREAU GRP RAILTRANSIT ENG CO LTD +1
Intelligent hollow brick green brick forming machine and forming process thereof
The invention relates to the technical field of hollow brick manufacturing, and discloses an intelligent hollow brick green brick forming machine and a forming process thereof.The intelligent hollow brick green brick forming machine comprises a mud extruding barrel, a heating layer is arranged in the mud extruding barrel in a sleeved mode, a feeding port is formed in the top face of the mud extruding barrel, a pressure release valve is further fixedly arranged on the top face of the mud extruding barrel, and a shaping channel is arranged at one end of the mud extruding barrel in a sleeved mode; the molding channel is sleeved with a heat preservation sleeve, a support is arranged on the outer side of one end of the molding channel, the support is wrapped with heat insulation cotton, a mold is arranged at the top end of the support, a turnover cleaning mechanism and a molding mechanism are arranged above the mold, an auger is arranged in the mud extruding barrel, and a plurality of brushes are fixedly arranged on the edge of the auger. According to the device, self-cleaning can be completed through the cleaning mechanism and the brush, green brick forming is prevented from being affected, the original proportion of pug can be guaranteed, components in green bricks are prevented from being damaged, and the strength of hollow bricks is guaranteed.
Owner:周重阳
Plastic building template system
ActiveCN102061805BHigh strengthImprove bindingForming/stuttering elementsEngineeringUltimate tensile strength
The invention relates to a plastic building template system. The system comprises first templates which are spliced together to form a plane template system, and second templates which are spliced with the first templates to form corners, wherein, plane connecting heads are formed on spliced edges of the first templates; the second templates form corner connecting heads on spliced edges between the second templates and the first templates; and the plane connecting heads are coupled with the corner connecting heads so that seams of the building template system have higher strength and better binding tightness and meanwhile external surfaces of panels at two sides of the neighboring templates are respectively limited on the same plane at the same side, thus the surface of the building template system close to a grouting side is flat, and the surface flatness of the building after cast molding is ensured.
Owner:王亚运
Hydrophobic modified expanded perlite insulation board and production method thereof
ActiveCN105948638BImprove fire performanceHigh strengthSolid waste managementCeramic shaping apparatusFiberCarbon fibers
Owner:XINYANG CITY OF CRYSTAL ENG MATERIALS CO LTD
How to make insulation blocks
ActiveCN104999542BGuaranteed integrityGuaranteed to resist pressureCeramic shaping apparatusThermal insulationUltimate tensile strength
The invention discloses a production method of a thermal insulation block, which comprises the following steps of placing mould frames, pouring a framework, pouring an external thermal insulation body and an internal thermal insulation body, pulling out an internal mould frame and mandrel frames, ramming all materials, and releasing an external mould frame. The production method of the thermal insulation block is simple and clear in production process, and high in production efficiency; the framework and a thermal insulation structure can be formed by once material injection; various members can be mutually fused into a firm whole, the hidden danger of unstable connection easily caused by fractional production is avoided; and the integrity, the compression resistance, the shearing strength and the integral thermal insulation property of the finished block are further guaranteed.
Owner:JIANGSU VOCATIONAL INST OF ARCHITECTURAL TECH
Preparation method and metal material for manufacturing metal mold through 3D printing
InactiveCN108746588AImprove work efficiencySimple stepsAdditive manufacturing apparatusTransportation and packagingMetallic materialsSilica gel
The invention discloses a preparation method and a metal material for manufacturing a metal mold through 3D printing. The preparation method comprises the following steps that 1, a 3D model drawing ofa product to be processed is drawn by a computer; 2, the drawn 3D model drawing is input into an SLA 3D printer, a resin mold is directly printed by the SLA 3D printer, then manual mold trimming is carried out, the final shape of the mold is confirmed, and the mold closing processing is performed to confirm the precision of the mold; 3, silica gel turnover technology is adopted for carrying out mold turnover treatment on the resin mold, and the complete and accurate silica gel mold is obtained; and 4, metal materials fill the silica gel mold, and are heated and cured to obtain the metal mold.According to the method, a preparation method of the metal mold is manufactured through 3D printing, the required high-precision resin mold is printed by utilizing mature SLA technology in the market, the needed metal mold is cast by using a silica gel secondary turnover mold, the working efficiency is high, the labor intensity is low, and the cost is low.
Owner:DONGGUAN ZHANSHENG MOLD
Mine-well engineering material for pit-wood sleeper and preparing method therefor
InactiveCN100494116CProtect resourcesSave resourcesSolid waste managementOXALIC ACID DIHYDRATESulfate
This invention relates to a shaft engineering material used for pitprop and crosstie, mostly includes bamboo reinforcement skeleton. According to weight the bamboo reinforcement skeleton includes follow components: magnesia 10 to 80 shares, magnesium chloride 5 to 30, wood flour 10 to 50, semi-hydrated gypsum 5 to 20, plastic fibre 1 to 5, ferrous sulfate 1 to 10, oxalic acid 1 to 3, water 30 to 60 shares. This invention also relates to the preparation method. This invention can effectively avoide insufficiency of traditional stuff such as perishable, flammability and easy exploding, also possess unique merits such as ageing resistance corrosion prevention, fireproofing, waterproof and be able to saw and cut and so on in the moist roadway environment.
Owner:王章安
Mineralized collagen-based skull defect restoration based on digital reconstruction and its preparation method
ActiveCN106620846BGuaranteed to healImprove fitImage enhancementReconstruction from projectionRolloverBased skull
The invention relates to a mineralized collagen-based skull defect restoration based on digital reconstruction and a preparation method of the skull defect restoration. The preparation method comprises the following steps: acquiring skull image data of a patient; conducting threshold setting and a region growing operation, so that a three-dimensional skull model is obtained; establishing a curve model which is matched with a part of skull defect and has an internal repair curve and an external repair curve; leading the curve model into digital model engraving software and conducting detail treatment; suturing the internal repair curve and the external repair curve into an enclosed solid, so that a restoration model is constituted, and conducting a Boolean operation on the restoration model and the three-dimensional skull model, so that the edge of the restoration model is consistent with a skull defect edge; conducting a rollover operation on the restoration model and processing a solid mold; and pouring a mineralized collagen / polycaprolactone mixed suspension into the mold and conducting molding, so that the mineralized collagen-based skull defect restoration is obtained. According to the skull defect restoration and the preparation method thereof provided by the invention, perfect fit between the restoration edge and the skull defect edge is achieved, and moreover, new bone growth is guided, so that a post-operative skull curing effect is guaranteed.
Owner:BEIJING ALLGENS MEDICAL SCI & TECH
Tower type layered artificial coral reef and construction method thereof
PendingCN114731977AGuaranteed supplyPrevent collapseClimate change adaptationPisciculture and aquariaEcological environmentZooxanthellae
A coral reef body is of a rectangular pyramid tower type porous layered body structure made of reinforced concrete, the gravity center of the reef body is located on the vertical central axis of the reef body, fixing holes are formed in the reef body except a bottom plate, and the top of the reef body is a perforated cone. The coral reef body is simple in structure, convenient to assemble and high in stability, and compared with a traditional artificial coral reef, the coral reef body is higher in wind wave resistance, compression resistance and corrosion resistance and larger in coral breeding area. The coral reef is mainly used for implementing coral cultivation, coral bottom sowing transplanting and other technical measures, provides a living environment for coral, zooxanthellae and other marine animals and plants in the ocean, protects and reconstructs a coral ecological system, accelerates the construction progress of a marine ranch, improves the productivity of a sea area, and further achieves the purposes of repairing the marine ecological system and ecological resources and improving the ecological environment. And the marine environment is protected.
Owner:HAINAN TROPICAL OCEAN UNIV
Waterproof roll for tunnel roof and preparation method thereof
InactiveCN111806003AImprove connection tightnessHigh strengthUnderground chambersSynthetic resin layered productsStructural engineeringSealant
The invention provides a waterproof roll for a tunnel roof and a preparation method of the waterproof roll. The waterproof roll comprises a first waterproof plate, a sandwich plate is adhered to the bottom of the first waterproof plate through a first sealant; a second waterproof plate is adhered to the bottom of the sandwich plate through a second sealant; reinforcing blocks are integrally formedon the opposite peripheries of the first waterproof plate and the second waterproof plate, reinforcing grooves matched with the reinforcing blocks in a clamped mode are formed in the periphery of thetop and the periphery of the bottom of the sandwich plate, and the two sides of the center of the top and the two sides of the center of the bottom of the sandwich plate are coated with a strong waterproof glue used in cooperation with the first waterproof plate and the second waterproof plate. Through cooperation of the reinforcing blocks and the reinforcing grooves, the connecting and fasteningeffect among the first waterproof plate, the sandwich plate and the second waterproof plate can be enhanced, the overall strength between the first waterproof plate and the second waterproof plate isenhanced, and the water seepage prevention effect of the first waterproof plate and the second waterproof plate is enhanced through the strong waterproof glue, water seepage holes and water absorption microbeads.
Owner:YIXING JIEGAO NON WOVEN FABRIC
A straw-fiber-reinforced spray-on phosphogypsum-based fireproof mortar and its preparation method and application
The invention discloses straw-fiber-reinforced spray-coating phosphogypsum-based fireproof mortar as well as a preparation method and application thereof, belonging to the technical field of building materials. A straw-fiber-reinforced spray-coating phosphogypsum-based fireproof mortar of the present invention is prepared from the following raw materials according to weight percentage: 65-85% of composite cementitious material, 10-30% of lightweight fine aggregate, and 0.6-2.8% of carbon fiber %, 0.2-1.5% of straw fiber, 0.4-2.5% of polymer, 0.8-2.4% of organic silane coupling agent, and 0.1-0.5% of high-performance compound water reducer. The technical solution of the invention can effectively improve the fire prevention ability of the mortar, thereby reducing the fire risk of the steel structure building. At the same time, the mortar material is easy to use in construction and firmly combined with the steel structure building.
Owner:CHINA MCC17 GRP
An offshore oil field drill bit
ActiveCN108035681BEnsure Adaptive LifeNot easy to wearFireproof paintsEarth drilling toolsWell drillingOil field
The invention discloses a marine oil filed drill head. The marine oil filed drill head mainly comprises a connecting rod and a drill body, the top of the drill body is fixedly connected with a base plate of the connecting rod, the drill body comprises a drill head body and multiple auxiliary drills, the auxiliary rods are arranged on the substrate end face of the drill head body, the drill head body is conical, grinding particles are uniformly fixed to the auxiliary rods, a water opening is formed between two adjacent auxiliary rods and is in a streamline shape, the auxiliary rods are enclosedin an arc shape with the drill head body being the center axis, the bottom of the auxiliary drill is slightly lower than the bottom of the drill head body, and a hard alloy layer is fixed to the bottom of the drill head body. The marine oil filed drill head is simple in structure, practical, safe and convenient to use, the diving efficiency of well drilling can be effectively ensured, the adapting service life of the drill body is also ensured, the drill head body is utilized to lead drilling with the point, then the auxiliary drills are utilized to conduct drilling with the surface, it is ensured that a rock stratum can be firstly cracked under the leading effect of the drill head, through whole surface drilling of the auxiliary drills, the practical effect can be ensured, and the practicability is ensured.
Owner:河北锐石钻头制造有限公司
Preparation method of domestic garbage jelly
InactiveCN102500606BFiber richImprove waterproof performanceSolid waste disposalSocial benefitsFirming agent
Provided is a preparation method of domestic garbage jelly. The preparation method comprises mixing garbage powder and water, evenly stirring, adding in a pasting agent, stirring until garbage pulp turns light green from light brown, adding in a separating agent, evenly stirring, adding in an antiseptic bactericide, stirring until the garbage pulp turns light brown from light green, adding in a curing agent, stirring and obtaining the domestic garbage jelly. The preparation method of the domestic garbage jelly enables domestic garbage to be made into the jelly and be applied to building elements, roads, terraces, walls, mortar, sculpture and the like. The domestic garbage jelly is waterproof, damp-proof and resistant to pressure, bend, high temperature and freezing and the like. The domestic garbage jelly is attractive in surface, environment-friendly, high in adhesion, moderate in draft rate, not subjected to wind and rain and durable in use, does not generate moss, is a burning-free, economical, practical, low-carbon and environment-friendly economic combination body, reduces production cost, and improves social benefits.
Owner:王发东 +1
Noise reduction type luggage case with internal space convenient to classify and arrange
InactiveCN113749368AGuaranteed hardnessGuaranteed wear resistanceLuggageOther accessoriesTrunk compartmentInterior space
The invention belongs to the field of bags and suitcases, and particularly relates to a noise reduction type luggage case with an internal space convenient to classify and arrange, aiming at the problem that articles in the luggage case are inconvenient to take out temporarily, the noise reduction type luggage case comprises a left case body, a folding ABS case door is arranged on one side of the left case body, and a second airtight zipper is arranged on the same side of the left case body, the second airtight zipper is used for tightly connecting the folding ABS box door and the left box body, a cloth block is fixedly connected to the inner wall of one side of the left box body, a second cloth block is fixedly connected to the inner wall of one side of the left box body, storage cells are formed by the cloth block and the left box body, and second storage cells are formed by the second cloth block and the left box body, the second cloth block and the left case body simultaneously form a third storage case, a sponge computer cover is arranged on one side of the storage case, and a double-sided zipper is arranged at the joint of the storage case and the sponge computer cover. By arranging the folding ABS box door, articles in the box can be taken out more conveniently at any time.
Owner:杭州青火贸易有限公司
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