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Rigid drainage pile and construction method thereof
The invention discloses a rigid drainage pile and a construction method thereof. A precast watertight concrete tube and a precast water permeating concrete tube are respectively provided with a vertical first through hole and a vertical second through hole, wherein the first through hole and the second through hole are hermetically communicated; and the second through holes on adjacent precast water permeating concrete tubes are hermetically communicated with each other. As the second through holes on the water permeating concrete tube can filter underground water, form a vertical draining channel for pore water in a soil layer, can quickly scatter pressure of the pore water rapidly increased in the soil layer to lead the ground to be hard to be upheaved; the rigid drainage pile forms negative pressure through a vacuum pump and a suction pipe to pump underground water and generate vacuum, can quickly and forcibly reduce water content of the soft soil layer among piles and form effective stress in the stratum so as to form prepressing on the foundation and improve the strength of foundation soil; when the water content of the soil layer is reduced to be suitable for tamping, a pounder is used for tamping the ground surface to ensure that the soil layer of the foundation can be quickly consolidated, and the strength is quickly improved. The consolidated composite foundation has higher bearing capacity, but the cost for treating the foundation is lower.
Owner:梁钰泽
Method for producing particle board by adopting moisture-proof composite urea resin
ActiveCN106313205AWhite colorGood film formingNon-macromolecular adhesive additivesStarch derivtive adhesivesWear resistantAdhesive
The invention discloses a method for producing particle board by adopting moisture-proof composite urea resin. The method comprises the steps of material preparation, drying, debarking, sand removing, sorting, grinding, glue blending, hot pressing molding and the like. The key points of the production method disclosed by the invention are that melamine modified urea resin is adopted as a main material of an adhesive and is added with oxidized starch to form a viscous compound, polyvinyl alcohol is taken as a toughening agent, magnesium oxide is taken as an antiaging agent, hexamine and triglycidyl isocyanurate are taken as a curing agent, isobutyl triethoxy silane is taken as a bridging agent, phenolated lignin is taken as a formaldehyde catcher and a moisture-proof agent is also added to prepare the moisture-proof composite urea resin; the composite urea resin has the advantages of being low in formaldehyde residual volume, good in water resistance and good in moisture resistance; therefore, the produced particle board is low in formaldehyde residual volume, hard to expand after absorbing water and hard to arch and deform, and a wear-resistant layer is hard to damage. The particle board produced by the method disclosed by the invention is low in formaldehyde residual volume, also stable in quality, hard to damage, good in water resistance and good in moisture resistance.
Owner:广西横县新威林板业有限公司
Method for producing particle board through anti-insect and anti-mold composite urea formaldehyde resin
ActiveCN106363760AWhite colorGood film formingNon-macromolecular adhesive additivesStarch derivtive adhesivesAntioxidantPolyvinyl alcohol
The invention discloses a method for producing a particle board through anti-insect and anti-mold composite urea formaldehyde resin. The method comprises the procedures like material preparation, drying, veneer removing and grit removing, mixing glue, and hot press molding. The key of the production method is that melamine modified urea formaldehyde resin is adopted as a main material of an adhesive; oxidized starch is added as a viscous complexing agent; polyvinyl alcohol is adopted as a flexibilizer; hydrogenated rosin is adopted as an antioxidant; polyisocyanate is adopted as a curing agent; and triethoxyisobutylsilane is adopted as a bridging agent. According to the method, the anti-insect and anti-mold composite urea formaldehyde resin is prepared through adopting phenolated lignin as a formaldehyde capture agent and adding an anti-insect and anti-mold agent, and the particle board produced through the anti-insect and anti-mold composite urea formaldehyde resin has the advantages that the residual amount of formaldehyde is low and the anti-insect and anti-mold effect is good, has a quite high inhibiting effect on breeding of aspergillus, trichoderma and penicillia, and has instantaneous killing force and a long-term prevention effect on board powder-post beetles.
Owner:广西横县新威林板业有限公司
Method for producing total-eucalyptus plywood by adopting moisture-proof composite urea resin
InactiveCN106313203ALow residual formaldehydeImprove water resistanceNon-macromolecular adhesive additivesVeneer manufactureSilanesAdhesive
The invention discloses a method for producing total-eucalyptus plywood by adopting moisture-proof composite urea resin. The method comprises the following steps: rotatably cutting wood boards; drying each board; gluing; performing cold pressing for three times; stewing and conditioning; performing hot pressing for three times; cooling and conditioning; determining the thickness of a board blank and sanding the board blank. The key points of the production method disclosed by the invention are that melamine modified urea resin is adopted as a main material of an adhesive and is added with oxidized starch to form a viscous compound, polyvinyl alcohol is taken as a toughening agent, magnesium oxide is taken as an antiaging agent, hexamine and triglycidyl isocyanurate are taken as a curing agent, isobutyl triethoxy silane is taken as a bridging agent, phenolated lignin is taken as a formaldehyde catcher and aliphatic polyurethane acrylate is taken as a moisture-proof agent to prepare the composite urea resin; the composite urea resin has the advantages of being low in formaldehyde residual volume, good in water resistance and good in moisture resistance; therefore, the produced total-eucalyptus plywood is low in formaldehyde residual volume, hard to expand after absorbing water and hard to arch and deform, and a wear-resistant layer is hard to damage.
Owner:南宁市创锦胶合板有限责任公司
Centrifugal pendulum damping device
ActiveCN104813063APlay a role in dampingImprove energy absorptionRotating vibration suppressionFlywheelsEngineeringPendulum
The centrifugal pendulum damping device is provided with: a support (14), which has pairs of first curved tracks (22A, 22B) and is fixed to a rotating shaft (12); inertial masses (16), which have a pair of second curved tracks (23A, 23B) and are supported on the circumference of the support (14); and pins (24) that are fitted so as to roll freely in the sections where the first curved tracks (22A, 22B) and the second curved tracks (23A, 23B) intersect. Because the shapes of the paired first curved tracks (22A, 22B) are made to differ from each other and the shapes of the paired second curved tracks (23A, 23B) are made to differ from each other, the inertial masses (16) not only undergo translational motion in the circumferential direction of the support (14) but also autorotational motion, thereby improving damping performance for the damping of low frequencies. Moreover, the autorotational motion makes protrusion of the inertial masses (16) from a region (S) of the support (14) difficult and if the size of the inertial masses (16) is increased to that extent, it is possible to further improve damping performance.
Owner:HONDA MOTOR CO LTD
Method for producing particle board by adopting flame-retardant composite urea resin
ActiveCN106313259AWhite colorGood film formingNon-macromolecular adhesive additivesMacromolecular adhesive additivesChemistryRosin
The invention discloses a method for producing particle board by adopting flame-retardant composite urea resin. The method comprises the steps of material preparation, drying, debarking, sand removing, sorting, grinding, glue blending, hot pressing molding and the like. The key points of the production method disclosed by the invention are that melamine modified urea resin is adopted as a main material of an adhesive and is added with oxidized starch to form a viscous compound, polyvinyl alcohol is taken as a toughening agent, hydrogenated rosin is taken as an antioxidant, polyisocyanate is taken as a curing agent, isobutyl triethoxy silane is taken as a bridging agent, phenolated lignin is taken as a formaldehyde catcher and a flame retardant is also added to prepare the flame-retardant composite urea resin; the composite urea resin has the advantages of low formaldehyde residual volume and good flame retardance; by internal heat absorption reaction, the combustion temperature is reduced, so the produced particle board is low in formaldehyde residual volume and is effectively flame-resistant when a fire occurs.
Owner:广西横县新威林板业有限公司
Method for paving new ground tiles on original cushion layer
The invention discloses a method for paving new ground tiles on an original cushion layer. The method for paving the new ground tiles on the original cushion layer is characterized by comprising removing old ground tiles, retaining the cushion layer under the old ground tiles, cleaning up foreign materials and sands on the cushion layer, and carrying out a leveling treatment; watering and moistening the cushion layer; immersing the new ground tiles in clear water until no bubbles are generated, and drying the new ground tiles; pouring a layer of cement glue to the surface of the cushion layer, paving the new ground tiles on the cement glue, and pressing the new ground tiles tightly and flatly. The method for paving the new ground tiles on the original cushion layer is advantaged in that the original cushion layer does not need to be removed, materials can be greatly saved, time is saved, and the method is environmentally-friendly, and problems of empty drums, bulges and looseness and the like are not liable to occur.
Owner:PUTIAN UNIV
Method for producing full-eucalyptus parquet through dampproof composite urea resin
InactiveCN106239646AReduce formaldehyde contentGood gluing propertiesNon-macromolecular adhesive additivesStarch derivtive adhesivesFiberPolyvinyl alcohol
A method for producing a full-eucalyptus parquet through dampproof composite urea resin comprises the following steps of wood board sheet rotary cutting, veneer drying, gluing, three-time cold pressing, standing curing, three-time hot pressing, heat dissipation curing, slab fixed-thickness sanding, base material surface layer gluing, curing slotting and spraying drying sizing. According to the key of the production method, melamine modified urea resin is adopted as a main adhesive material, and oxidized starch is added as a sticky complexing agent; polyvinyl alcohol serves as a toughening agent; magnesium oxide serves as an anti-aging agent; hexamine and triglycidyl isocyanurate serve as a curing agent; vinyltriethoxysilane serves as a bridging fiber agent; and phenolate lignin is the dampproof composite urea resin prepared through a formaldehyde capture agent and an added dampproof agent. The composite urea resin has the beneficial effects of being low in formaldehyde residual volume and good in water resistance and dampproof performance, so that the produced full-eucalyptus parquet is low in formaldehyde residual volume and is not prone to expansion after absorbing water, arching and deformation are not likely to happen, and an abrasion resisting layer is not prone to damage.
Owner:南宁市创锦胶合板有限责任公司
Environment-friendly wall decoration fireproof coating and preparation method thereof
ActiveCN106590396AImprove fire performanceHigh strengthFireproof paintsPolyurea/polyurethane coatingsFiberAcrylic resin
The invention discloses an environment-friendly wall decoration fireproof coating, comprising ceramic fiber, vermiculite, perlite, fine asbestos, borax, mica powder, aliphatic waterborne polyurethane, a film-forming agent, a foaming agent and deionized water, wherein the foaming agent consists of a thermoplastic acrylic resin type polymer, sodium dodecyl benzene sulfonate, ammonium borate, ammonium polyphosphate and deionized water. The raw materials for preparing the coating disclosed by the invention are environment-friendly, have good fireproof performance, cannot deform easily, are high in strength, and cannot fall off and bulk; and preferably, the foaming agent is environment-friendly and nontoxic and has a reasonable formula, so that in the case of fire, the foaming agent expands to generate foams quickly to form a compact sponge-shaped expansion foam layer with a good heat-insulating property, combustible base materials can be protected more effectively, black smoke cannot be generated, and the concentration of organic volatiles is extremely low, which is beneficial for the health of sufferers and rescuers in the fire disaster. The preparation method disclosed by the invention is simple and is easy to operate, and the environment-friendly wall decoration fireproof coating is convenient in construction and firm in adhesion, and cannot crack to ensure that a wall body has a long service life.
Owner:HEBEI CHENYANG INDAL & TRADE GROUP CO LTD
Printing device for recycling of printing dye
InactiveCN108861703ANot easy to warpEfficient use ofArticle feedersElectricityPulp and paper industry
The invention discloses a printing device for recycling of a printing dye. The printing device structurally comprises a dye collector, a printing chamber, supporting columns, a controller, a mode adjusting button, a dye circulation collecting chamber, a display screen, an eccentric flange, a negative pressure device and an electricity box; the negative pressure device is provided with a balance adjusting device, a mechanical linkage device, a switch triggering device, a transmission device, an isolation driving device, a negative pressure cavity device, a rope recycling device and a metal frame. The printing device has the advantages that by adding the negative pressure device, a plurality of venting holes are formed in a belt, and a negative pressure distribution cavity is formed below the belt and connected to a negative pressure port of a negative pressure pipe; in this way, the negative pressure distribution cavity can be used for distributing negative pressure in a large area below the belt, and the negative pressure is utilized more efficiently; due to the formation of a negative pressure environment below the belt, paper can be sucked to the belt, the end of the paper is noteasily upturned, the middle of the paper cannot protrude, and thus the paper can smoothly enter a paper inlet.
Owner:湖州南浔申亚机械设备厂
Roof waterproof construction process
InactiveCN107461008ALow thermal expansion and contractionNot easy to bulgeRoof covering using flexible materialsRoof toolsEngineeringThermal expansion
The invention discloses a roof waterproof construction process which comprises the following steps of 1, cleaning a roof; 2, repairing and smoothening the surface layer of the roof; 3, coating ethyl acrylate glue onto the surface layer of the roof in the step 2 in a rolling way, and then flatly laying a layer of glass fiber gridding cloth; 4, diluting and uniformly proportioning modified calcium carbonate powder, polyurethane waterproof paint and acetone, and then parallelly coating and scraping the materials onto the surface of the glass fiber gridding cloth by a plastic scraper; 5, performing second time of vertical coating and scraping on the surface of a coating according to the step 4; and 6, after the curing of the second coating and scraping layer, spraying an organic silicon anti-aging agent onto the surface, and performing drying. The roof waterproof construction process has the advantages that construction bubbles do not exist in the construction layer and the roof by using the process; the bonding is firmer; and the construction layer has a low thermal expansion and cold contraction rate, cannot easily bulge and cannot easily tilt.
Owner:宜兴市周铁镇生力钻探机械厂
Equipment for conveying glass plates on air bearing table in heating furnace
InactiveCN106145659ANot easy to bulgeIncrease stiffnessGlass transportation apparatusAir bearingAir blower
The invention provides equipment for conveying glass plates on an air bearing table (9) in a heating furnace. The air bearing table comprises air supply holes (12) and air exhaust holes (1). The air supply holes are connected to a pumping chamber (7) below the air bearing table (9), the air exhaust holes (1) are connected to an air exhaust channel (2) in the air bearing table, and the first end of the air exhaust channel is led into the heating furnace (0) or provided with a sealed gate valve (13) capable of being switched off and switched on. The second end of the air exhaust channel (2) is led to a suction pipeline (3) or provided with a blocking gate valve (11) capable of being switched off and switched on. The suction pipeline (3) of an air blower is located on the side, opposite to a conveyor (10), of the air bearing table (9), and the conveyor makes contact with glass. At least one adjustable bypass gate valve (4) for adjusting air bearing of the glass is arranged in the suction pipeline (3) between the air exhaust channel (2) and the air blower (5).
Owner:GLASTON FINLAND
Quick-heating abrasive floor tile
PendingCN106639243APrevent moistureKeep dryLighting and heating apparatusElectric heating systemEavesFlange
The invention discloses a quick-heating abrasive floor tile. The quick-heating abrasive floor tile comprises a floor tile body; the interior of the floor tile body is of a hollow structure; the hollow structure of the floor tile body is internally composed of a thermal insulating layer arranged at the bottom, a heating plate located over the thermal insulating layer, a waterproof layer covering the outer surface of the heating plate, a flange arranged on the surface of one outer side of the floor tile body, a first electrode which is arranged on the lower surface of the flange and connected with the heating plate through a wire, a groove which is formed in the surface of the other outer side of the floor tile body and corresponds to the position of the flange, a second electrode which is located at the bottom of the groove, matched with the first electrode and connected with the heating plate through a wire, a rectangular waterproof eave which is arranged on one outer side of the floor tile body and located at the upper edge of one side of the flange, a rectangular groove which is formed in one outer side of the floor tile body and located in the position opposite to the position of the rectangular waterproof eave, and a skid resistant layer arranged on the upper surface of the floor tile body jointly. The quick-heating abrasive floor tile has the beneficial effects of being simple in structure and high in practicality.
Owner:卡博瑞(天津)智能科技有限责任公司
Fuel cell assembling device and method
PendingCN110289440AImprove performanceExtended service lifeFuel cellsFuel cellsAutomotive engineering
The invention discloses a fuel cell assembling device. The device comprises a lower press-fitting plate, an upper press-fitting plate, an inner positioning tool and a pressure applying device, wherein the lower press-fitting plate is placed on the pressure applying device. During the assembly of a fuel cell, all components of a fuel cell stack are placed between the upper press-fitting plate and the lower press-fitting plate, and the upper press-fitting plate, all the components of the fuel cell stack and the lower press-fitting plate are positioned and fixed through the inner positioning tool. The invention also provides a fuel cell assembling method. According to the invention, the diagonal positioning is realized through the inner positioning tool, the stacking efficiency of the components of the fuel cell stack is improved while guaranteeing the alignment of the components of the fuel cell stack. The precision is high and the sealing fit deviation is small. The assembly and online detection of the fuel cell stack with a large number of units can be achieved only through a simple operation. Meanwhile, the test replacement can be directly carried out on an assembly table when the sealing test is unqualified, so that the assembly and test period of the stack can be remarkably shortened.
Owner:BEIJING AEROSPACE PETROCHEM TECH & EQUIP ENG CORP LTD +1
Composite hollow grid-like flat plate and manufacturing method
PendingCN110344581AImprove performanceHigh strengthFlat articlesForming/stuttering elementsUltimate tensile strengthMaterials science
The invention provides a composite hollow grid-like flat plate and a manufacturing method. Continuous fiber is adopted in a strengthening layer for strengthening the strengthening layer, the strengthening layer is embedded in a template through a pultrusion process and is fused into a whole, and the product performance is improved. Under the situation that the section area is the same, compared with the prior art, the strength of the composite hollow grid-like flat plate is higher. Under the situation that the consistent strength is guaranteed, the section area of the composite hollow grid-like flat plate is smaller so that the weight of the composite hollow grid-like flat plate can be reduced. The continuous fiber is adopted in the strengthening layer for strengthening, firstly, the bending modulus is greatly increased, secondly, the anti-impact performance of the composite hollow grid-like flat plate is effectively improved, thirdly, the rebound resilience is greatly improved, and fourthly, the service life is prolonged. The composite technology is adopted in the manufacturing method, and integral continuity of the continuous fiber is guaranteed not like shearing due to meshing of a screw in the prior art. By adoption of the manufacturing method, structure adjustment is simple and easy, the width can be customized through a die, and cutting can be conducted freely in the length direction.
Owner:FUJIAN HAIYUAN NEW MATERIAL TECH
Six-axis type dicing machine
PendingCN110370350AEffectively cut offImprove flatnessMetal working apparatusEngineeringFood processing
The invention relates to the technical field of food processing equipment, in particular to a six-axis type dicing machine. The six-axis type dicing machine comprises a rack. A conveying device and adicing device are mounted on the rack. The dicing device comprises a cutting knife mechanism, a dicing power mechanism, dicing transmission mechanisms and guide mechanisms. The dicing power mechanismis connected with the dicing transmission mechanisms. The dicing transmission mechanisms are connected with the cutting knife mechanism. The cutting knife mechanism is arranged on the upper portion ofthe conveying device and comprises a knife holder, and the lower portion of the knife holder is connected with a cutting knife. The dicing transmission mechanisms are connected with the knife holder.The two ends of the knife holder are each connected with one set of guide mechanism. Each guide mechanism comprises a guide shaft and a guide plate. According to the six-axis type dicing machine, itis guaranteed that the cutting knife cuts off materials rapidly and effectively, levelness of the cutoff positions of the materials is improved, and it is guaranteed that the candy dicing quality is guaranteed.
Owner:DONGYING ZHIDA FOOD MACHINERY
Environment-friendly water-pervious PVC (polyvinyl chloride) plastic track and manufacturing method thereof
The invention relates to an environment-friendly water-pervious PVC (polyvinyl chloride) plastic track and a manufacturing method thereof, and solves the technical problems that the laying process ofa conventional plastic track is complicated; the toxic ventilation performance is poor; water can be easily accumulated; bubbling can easily occur at high temperature; the repair is complicated afterthe damage. The environment-friendly water-pervious PVC plastic track is provided with an upper layer and a lower layer, wherein the upper layer uses porous soft PVC floor boards; the lower layer useswater-pervious terrace; the upper layer and the lower layer are connected into a whole through a reserved rivet structure. The manufacturing method is also disclosed at the same time. The environment-friendly water-pervious PVC plastic track is widely applied to the fields of track engineering building in places such as gymnasiums and schools.
Owner:山东万图高分子材料股份有限公司
Rolling type waterproof junction box
ActiveCN113161949AMake up for waterproof loopholesEffectively seal the gapCable inlet sealing meansRubber ringEngineering
The invention discloses a rolling type waterproof junction box, which belongs to the field of junction boxs. According to the rolling type waterproof junction box, a transverse outer convex bag and a pressing ring are arranged outside a wiring pipe, and after wiring is completed, the transverse outer convex bag is rolled through the pressing ring, so that an attaching inner bag is attached to the surface of the wiring pipe; meanwhile, compressed air in the transverse outer convex bag intensively moves towards the expansion outer bag, so that the expansion outer bag expands transversely and outwards and wraps the outer end of the connector of the wire and the wiring pipe, the waterproof rubber ring is stressed and damaged due to the extrusion effect of the compressed air, glass cement in the waterproof rubber ring overflows, a glass cement layer is formed between the transverse outer convex bag and the electric wire, a gap between the wiring pipe and the electric wire is effectively blocked, and compared with the prior art, waterproof loopholes at the wiring pipe are effectively made up, so that potential safety hazards are reduced, and the service life of the junction box is prolonged.
Owner:国网伊犁伊河供电有限责任公司
Security and/or valuable document
ActiveCN1938165AAffects expansion propertiesNot easy to bulgeNon-fibrous pulp additionOther printing matterEngineeringPaper document
Owner:LEONHARD KURZ GMBH & CO KG
Method for manufacturing thermosetting resin high-pressure laminated board
InactiveCN104553178ANot easy to bulgeAvoid crackingSynthetic resin layered productsLaminationPolymer scienceMelamine
The invention relates to a method for manufacturing a thermosetting resin high-pressure laminated board. The method comprises the following steps: respectively dipping surface paper and decorative paper in a modified melamine resin at the temperature of 70-80 DEG C for 2-3 hours; laminating the dipped surface paper and decorative paper with bottom paper dipped by using a phenolic resin, and performing hot-pressing under the pressure of 8-10MPa and the temperature of 140-160 DEG C for 45-60 minutes. According to the thermosetting resin high-pressure laminated board disclosed by the invention, the surface paper is dipped by adopting the modified melamine resin, and a dense protective film is formed after hot pressing and is tightly combined with the bottom paper, so that the laminated board is high-temperature-resistant and water vapor-resistant and is difficult to bulge and crack.
Owner:QINGDAO WINCHANCE TECH
Complex load steel plate concrete platform
InactiveCN106759854AClosely connectedSatisfy local pressureBuilding constructionsSheet steelPunching
A complex load steel plate concrete platform comprises a concrete base layer and a concrete face layer. The concrete face layer is arranged on the concrete base layer, and the upper surface of the concrete face layer is covered with a facing steel plate; embedded keels are arranged in the concrete face layer; a plurality of short rebars are arranged between the concrete face layer and concrete base layer, the upper ends of the short rebars are arranged in the concrete face layer, and the lower ends of the short rebars are arranged in the concrete base layer. The complex load steel plate concrete platform can meet the requirements for local bearing, punching resistance, subgrade bearing capacity and the like, and in the use process, it can be guaranteed that the surface is smooth and flat and no large deformation is generated; as the steel plate and the concrete are connected tightly enough, it can be guaranteed that the steel plate and the concrete deform concurrently and work cooperatively, and thus the upheaval of a surface steel plate is not likely to occur under a large temperature difference load.
Owner:SHANGHAI JIAO TONG UNIV
Downward automatic welding method of gas-shielded alkaline flux-cored wire for long-distance pipeline
ActiveCN110773844ASpeed up the flowNot easy to bulgeArc welding apparatusWelding/cutting media/materialsThermodynamicsShielding gas
The invention provides a downward automatic welding method of gas-shielded alkaline flux-cored wire for a long-distance pipeline, and belongs to the field of welding. When the alkaline flux-cored wireis used for downward welding, the welding polarity is straight polarity direct current; pure CO2 is used as shielding gas, so that the arc blowing force and the depth of fusion during welding are ensured, the molten pool flowing is uniform, and the weld formation is good; especially the weld at the over-head position of welding is not prone to bulge, so that the welding arc has sufficient blowingforce to spread the molten pool evenly to the two sides of a groove; the surface of the entire circumferential weld is flat and slightly concave; the cleaning after welding is easy; incomplete fusiondefects are difficult to occur; and the percent of pass of welding is increased.
Owner:吴立斌 +1
Treatment-free rubber roll for air vortex spinning
The invention relates to a treatment-free rubber roll for air vortex spinning, in particular to a rubber roll for drafting yarns on an air vortex spinning machine. The rubber roll comprises a roll body, wherein the roll body is a circular rubber short pipe. The rubber roll is characterized in that an aluminum bushing is arranged in the roll body, and is tightly matched with the roll body. The diameter of the external circumference of a middle section of the roll body is greater than the diameters of the external circumferences of two end sections of the roll body, so that circumferential steps can be formed on the external circumferences of the two ends of the roll body. A binding force between the treatment-free rubber roll for the air vortex spinning and a bearing is high, and the treatment-free rubber roll is easy to process, low in manufacturing cost and long in service life.
Owner:WUXI LANXIANG PLASTIC IND
Green energy-saving fabricated building wallboard
ActiveCN114856079AQuick connectionNot easy to bulgeClimate change adaptationPassive housesArchitectural engineeringMechanical engineering
The invention relates to the technical field of building wallboard installation, and particularly discloses a green energy-saving fabricated building wallboard which comprises an inner wallboard and a plurality of outer wallboards, the outer wallboards are slidably installed on the inner wallboard, installation grooves are symmetrically formed in one set of two opposite sides of each outer wallboard, and a plurality of insertion holes are formed in the inner walls of the installation grooves at intervals; a mounting cavity is defined by the mounting grooves in the opposite sides of every two adjacent outer wall plates, a locking sleeve is arranged in each mounting cavity, one end of each locking sleeve is inserted into the corresponding inner wall plate, a plurality of inserting rods, a driving assembly, a clamping assembly and a sealing piece are arranged in each locking sleeve, and each driving assembly is used for driving the corresponding inserting rods to be synchronously inserted into the corresponding inserting holes; the clamping assembly is used for connecting the outer wall plate and the inner wall plate; and the sealing piece is used for sealing and filling a mounting gap between the locking sleeve and the inner wall plate. The mounting device has the effect of improving the mounting efficiency of the external wall panel.
Owner:深圳市景鹏建设工程有限公司
Rotary socket
InactiveCN104953431AAvoid deformationHigh strengthFlexible/turnable line connectorsEngineeringElectrical equipment
The invention relates to a rotary socket. The rotary socket comprises a casing and electric appliance plug core bodies in the casing, wherein the casing comprises one or more rotary sleeves, socket end caps and bases; mounting end holes are formed in two sides of each rotary sleeve; the socket end caps and the bases are in one-to-one correspondence in the vertical direction and are connected with the mounting end holes of corresponding two adjacent rotary sleeves; core body end caps buckled with the socket end caps are arranged in the mounting end holes in the rotary sleeves; each core body end cap, a bottom plate on the corresponding base and the corresponding mounting end holes define a core body accommodating cavity; the electric appliance plug core bodies are arranged in the core body accommodating cavities and fixedly connected with the bottom plates on the bases, and the electric appliance plug core bodies in the two mounting end holes in the same rotary sleeve are at 60 degrees after being fixed. The rotary socket is similar to a bicycle chain in structure, is good in strength and cannot deform easily; the structure is simple, an insert structure is not required inside, and a jack structure and a rotating structure are integrated; few structural parts are required, so that the assembly process is simple, the assembly efficiency is high, and the cost is low.
Owner:宁波市镇海乌托邦工业设计有限公司
A kind of flame retardant and high temperature resistant oriented strand board and its preparation method
ActiveCN110682394BImprove thermal stabilityImprove flame retardant performanceFlat articlesDomestic articlesWood shavingsPhysical chemistry
The invention provides a flame-retardant and high-temperature resistant oriented particle board, which comprises a surface layer and a core layer, the surface layer is composed of large shavings; the core layer is composed of large shavings and fine shavings, and the paving angle between the surface layer and the core layer is 45-90°. The present invention also provides a method for preparing flame-retardant and high-temperature-resistant oriented strand board, including shavings, initial washing of shavings, drying, re-washing of shavings, draining, balancing, curing, drying, mixing, sizing, paving, hot pressing, Trimming, sanding. The beneficial effects of the present invention are: the flame-retardant and high-temperature-resistant oriented particle board of the present invention has good thermal stability, is not easy to delaminate and crack when heated, and can ensure stable flame-retardant performance; it is difficult to release toxic substances when heated; the added flame-retardant components can effectively adhere to On the surface of shavings, it has good flame retardant performance and can withstand high temperature attack; it has good physical and mechanical properties and good durability.
Owner:寿光市鲁丽木业股份有限公司
Complex load steel plate concrete platform
A complex load steel plate concrete platform comprises a concrete base layer and a concrete face layer. The concrete face layer is arranged on the concrete base layer, and the upper surface of the concrete face layer is covered with a facing steel plate; embedded keels are arranged in the concrete face layer; a plurality of short rebars are arranged between the concrete face layer and concrete base layer, the upper ends of the short rebars are arranged in the concrete face layer, and the lower ends of the short rebars are arranged in the concrete base layer. The complex load steel plate concrete platform can meet the requirements for local bearing, punching resistance, subgrade bearing capacity and the like, and in the use process, it can be guaranteed that the surface is smooth and flat and no large deformation is generated; as the steel plate and the concrete are connected tightly enough, it can be guaranteed that the steel plate and the concrete deform concurrently and work cooperatively, and thus the upheaval of a surface steel plate is not likely to occur under a large temperature difference load.
Owner:SHANGHAI JIAOTONG UNIV
Self-adsorption insulating paper for transformer core
ActiveCN110370737AImprove adhesionEnhance electrostatic interactionSynthetic resin layered productsTransformers/inductances coils/windings/connectionsTransformerHeat resistance
The invention discloses self-adsorption insulating paper for a transformer core, and belongs to the technical field of transformers. The self-adsorption insulating paper for the transformer core includes an insulating paper body and an electrostatic generation film layer, the insulating paper body includes a heat-resisting and high-temperature insulating paper layer, a heat-resisting adhesive layer and an EMP film layer, the heat-resisting and high-temperature insulating paper layer is bonded to the EMP film layer through the heat-resisting adhesive layer, abnormal type adsorption villi are densely distributed on the end face, away from the heat-resisting adhesive layer, of the heat-resisting and high-temperature insulating paper layer, anti-oxidation electrostatic generation villi are densely distributed on the end face, close to the heat-resisting and high-temperature insulating paper layer, of the electrostatic generation film layer, the insulating paper body can be stably adsorbedon the surface of the core by using static electricity, the oxidation change state of the abnormal type adsorption villi on the insulating paper body is used, so that the insulating paper body stablybody adheres the surface of the core, bulging is not prone to occurring, the gap between the insulating paper body and the surface of the core is reduced, at the same time, the self-adsorption insulating paper has the effects of energy saving and environmental protection, and the service life is prolonged.
Owner:NANTONG RIZHI ELECTRIC STUFF CO LTD
Composite hollow grid-like structural plate and manufacturing method
PendingCN110344580AImprove performanceHigh strengthForming/stuttering elementsState of artUltimate tensile strength
The invention provides a composite hollow grid-like structural plate and a manufacturing method. Continuous fiber is adopted to reinforce a first reinforcing layer; the first reinforcing layer is embedded in a template through the pultrusion process and melts to form an integrity with the template, so that the product performance is improved. Compared with the prior art, the composite hollow grid-like structural plate has higher strength on the condition of the same cross section area. On the condition of ensuring consistent strength, the cross section area of the composite hollow grid-like structural plate is smaller, so that the weight of the composite hollow grid-like structural plate is reduced. Two side ribs provide main support force and simulate a dorsal rib to be used, so that thenumber of reinforcing members during construction is reduced. According to the manufacturing method, the composite production process is adopted to ensure the entire continuity of continuous fiber, and in the prior art, the continuous fiber is sheared through occlusion of screw rods. With adoption of the manufacturing method, the structure adjustment is simple, the width can be customized througha die, and arbitrary cutting in the length direction can be carried out.
Owner:FUJIAN HAIYUAN NEW MATERIAL TECH
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