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40results about How to "Good lap" patented technology

Grouting material for assembly type building reinforcement connection sleeve

InactiveCN107686314AGood water retentionIncreased compressive and flexural strength of mortarRebarPliability
The invention discloses a grouting material for an assembly type building reinforcement connection sleeve. The grouting material is prepared from the following raw materials in percentage by weight: 45-60% of cement, 30-45% of fine aggregates, 1-2% of an enhancer, 0.05-0.1% of a de-foaming agent, 7-10% of a phosphogypsum composite expanding agent, 0.5-0.8% of a polycarboxylic acid water reducer, 0.05-0.09% of a retarder, and 0.08-0.2% of an early strength agent, wherein the phosphogypsum composite expanding agent is a mixture of modified phosphogypsum, phosphorus slag micro powder and wollastonite. According to the grouting material disclosed by the invention, continuously graded fine sand and quartz sand are used as fine aggregates to match with the cement for use, the fine aggregates andthe cement are reasonably proportioned, and the phosphogypsum composite expanding agent is added, so that cement paste is very compact after being hardened; the grouting material is greatly improvedin strength, is matched with the enhancer, the retarder, the polycarboxylic acid water reducer and the early strength agent for use, so that mortar has good water-retaining property, plasticity and flexibility; and tensile bonding strength as well as mortar and brickwork tensile bonding strength are obviously improved, comprehensive properties are good, and using requirements of an assembly type building are met.
Owner:无为县严桥双龙建材厂(普通合伙)

Subway superlarge section tunnel underground excavation support replacement and main body structure construction method

The invention relates to a subway superlarge section tunnel underground excavation support replacement and main body structure construction method, and relates to a construction method. In order to solve the problem that potential safety hazards exist on an existing large-section multi-channel temporary median septum disassembling method, the construction method comprises the steps of after finishing excavation initial supporting and back grouting, pouring a concrete cushion, breaking a fifth layer of median septum concrete and a reinforcing mesh plate, paving a waterproof layer, then concreting a reinforcing steel bar and a template, and constructing a bottom plate structure; disassembling horizontal supports on two sides of a fourth layer, paving side wall waterproof layers, and constructing side wall structures; disassembling horizontal supports on two sides of a third layer, paving side wall waterproof layers, and constructing side wall structures and a lower middle layer plate; disassembling horizontal supports on two sides of a second layer, paving side wall waterproof layers, and constructing side wall structures and an upper middle layer plate; disassembling horizontal supports on two sides of a first layer, replacing an arch part vertical support, paving side walls and an arch part waterproof layer, and constructing the side walls and an arch part structure; and disassembling all vertical supports. The subway superlarge section tunnel underground excavation support replacement and main body structure construction method provided by the invention is applied in subway and tunnel projects.
Owner:中水电四局华中(武汉)工程有限公司 +1

Heat-dissipation powder coating and preparation method thereof

The invention provides a heat-dissipation powder coating and a preparation method thereof. The powder coating comprises saturated carboxyl-terminated polyester resin, a curing agent, a composite heat-dissipation filling material, a directional arrangement agent, titanium dioxide, polytetrafluoroethylene, an aluminum pigment and the like, wherein the composite heat-dissipation filling material is prepared by sequentially carrying out ball milling, mixing and spheroidizing treatment on hexagonal boron nitride, aluminum hydroxide and aluminum oxide; the heat conductivity coefficient of the composite heat-dissipation filling material can be effectively increased; and the composite heat-dissipation filling material and the aluminum pigment are in synergistic interaction, so the powder coating has a remarkable heat dissipation effect. According to the invention, the directional arrangement agent with a hydroxyl content of 1%-2% is added, and has strong affinity with aluminum hydroxide, aluminum oxide, magnesium aluminum silicate and the aluminum pigment, effectively promotes the arrangement of the nodularized composite heat-dissipation filling material and the aluminum pigment to tend tobe tidy, and can effectively promote the establishment of good lap joint between the whole components in a formula; thus, the powder coating with excellent comprehensive properties on the whole is prepared.
Owner:广东华江粉末科技有限公司

Adjustable magnetic ring

InactiveCN108710012AAdjustable cross-sectional areaAdjustable lengthMagnetsMeasurement instrument magnetsWhole bodyLap joint
Embodiments of the present invention provide an adjustable magnetic ring. The adjustable magnetic ring includes a housing and a plurality of semi-magnetic cores disposed in the housing; the housing includes an upper portion and a lower portion; every two semi-magnetic cores are coupled to form a complete magnetic core, and the complete magnetic cores are arranged in the housing; one ends of the upper portion and the lower portion of the housing are hinged, and fasteners are arranged on the other ends of the upper portion and the lower portion; the upper portion and the lower portion are fastened together through the fasteners. The adjustable magnetic ring is adjustable in magnetic ring material, cross-sectional area, and length. The most effective magnetic ring for noise is determined according to the magnetic ring material, the cross-sectional area, and the length. The upper portion and the lower portion of the housing are hinged through plastic connection members, and the flexibilityof the housing is improved. The other ends of the upper portion and the lower portion of the housing are connected through the fasteners, the upper semi-magnetic ring and the lower semi-magnetic ringcan be lap-jointed well to form a whole body, and gaps between the upper and lower magnetic cores can be prevented.
Owner:ZHENGZHOU YUNHAI INFORMATION TECH CO LTD

High-side wall concrete construction joint zero-defect construction method

The invention relates to a high-side wall concrete construction joint zero-defect construction method. A poured bin side joint is polished to be flat, circumferential cutting is carried out at the side joint to form a construction joint, the construction joint and a grinding area are cleaned, a double-faced adhesive tape is attached to the flat grinding area. before pouring of a to-be-poured bin,a trolley template, the cutting joint and the double-faced adhesive tape are pressed and sealed, the trolley template is controlled to compress the thickness of the double-faced adhesive tape, and therefore the trolley template and the poured bin side joint are closely attached without seam face fracturing. The high-side wall concrete construction joint zero-defect construction method overcomes the problems that the joint angle of an original high side wall lining construction joint has defects, lap joint sealing is not good, and the lap joint opportunity selection deviation has defects, and the beneficial effects that the lap joint is tight, the joint angle of the construction joint is free from defects, jointing and sealing are good, during pouring of the to-be-poured bin, fracturing ofthe side joint is not prone to generating, slurry seepage is not prone to happening, and operation is simple and convenient to achieve are achieved.
Owner:CHINA THREE GORGES PROJECTS DEV CO LTD +1

Anti-seismic structure for reinforced concrete structure beam-column joint

ActiveCN113802910APrevent movementHave an initial fixation effectProtective buildings/sheltersShock proofingRebarLap joint
The invention discloses an anti-seismic structure for a reinforced concrete structure beam-column joint. The anti-seismic structure comprises a vertical column, a cross beam, a top fixing plate and a bottom fixing plate, wherein left and right grooves are connected to the two sides of the tops of the vertical column in an embedded mode, the bottoms of the left and right grooves are movably connected with the cross beam, the top of the cross beam are movably connected with the top fixing plate, the bottom of the cross beam are movably connected with the bottom fixing plate, a front groove and a rear groove are connected to the middle of the interior of the vertical column in an embedded mode, lap joint grooves are connected to the two sides of the vertical column in an embedded mode, two triangular blocks are arranged in the middle of each lap joint groove, the triangular blocks are symmetrically distributed up and down, misplug of other conventional structures is avoided through the arrangement, meanwhile, due to the triangular supporting effect of the triangular blocks, lap joint of the lap joint columns and the lap joint grooves is more stable and attached, the fixing plate wraps the periphery of the cross beam and is fixed through bolts, so that the situation that the cross beam cannot be fixed due to the fact that one position of the fixing plate is not fixed well is avoided, the fixing effect between the vertical column and the cross beam is improved through the fixing plate, and meanwhile practicability is improved.
Owner:孙博

Homogeneous earth dam and dam penetrating culvert pipe contact scouring anti-seepage grouting construction method and grouting effect detection method

ActiveCN108625374AMake up for contact leakageGood lapFoundation testingHigh densitySlurry
The invention relates to a homogeneous earth dam and dam penetrating culvert pipe contact scouring anti-seepage grouting construction method and a grouting effect detection method, and belongs to thetechnical field of the hydro-junction. The detection method comprises the steps that after one week after grouting is finished, a high-density electrical method and other geophysical prospecting methods are used for detecting the continuity situation of a cement wall; then, part of soil mass within the grouting range is excavated for observing of the slurry veins and the lap joint situation between the adjacent slurry veins; and finally, part of the slurry veins are selected, the thickness of the slurry veins is measured, and the seepage resistance of the slurry veins is evaluated. According to the homogeneous earth dam and dam penetrating culvert pipe contact scouring anti-seepage grouting construction method and the grouting effect detection method, a seamless steel pipe is utilized as agrouting floral tube, and a good grouting effect is achieved; and the slurry vein thickness is uniform, the lap joint effect is good, and the slurry vein walking direction is controllable. Meanwhile,the invention provides a method for detecting and assessing the field grouting effect through a field excavation and high-density electrical method combining manner, systematic and quantitative analysis and assessment on the grouting effect can be achieved, and a reliable reference basis is provided for improving the construction technology according to the information fed back according to the grouting effect.
Owner:SHANDONG UNIV

An environment-friendly decorative paper for wood-based panel decoration and a wood-based panel using the environment-friendly decorative paper

The invention relates to an environment-friendly decorative paper for artificial board facings and an artificial board adopting same. The decorative paper is prepared by the following method: corn starch is mixed with glycerol, chloroacetic acid and sodium hydroxide, the mixture is added with water and epichlorohydrin and squeezed to react, and the extrudate is added with water and heated to be gelatinized, so that a modified starch paste is obtained; after undergoing steeping, beating, moisture balancing and defibering, raw wood pulp is mixed with filler dispersant, retention aid, wet strength agent and the modified starch paste, and the obtained pulp sequentially undergoes forming, pressing and aging, so that a raw paper is obtained; after being ground, soybean meal is added with water and cellulase and undergoes enzymolysis while temperature is kept, and the enzymatic hydrolysate is added with NaOH to react while temperature is kept, so that a soybean protein glue is obtained; and after the soybean protein glue is used for being applied on the raw paper, calendering is carried out, so that the environment-friendly decorative paper is obtained. The environment-friendly decorativepaper does not contain formaldehyde, no formaldehyde is produced and released in the processes of preparation and use as well, the environment-friendly decorative paper has the effect of sealing formaldehyde in an artificial board substrate when hot-pressed to be laminated on the substrate, and therefore the release of formaldehyde in the substrate is greatly reduced.
Owner:SHENZHEN WEIYE DECORATION GRP

An aluminum alloy bridge transition connection device

The invention relates to a transition connection device for an aluminum alloy pedestrian bridge. The transition connection device comprises an inner vertical surface and an outer vertical surface, wherein the inner vertical surface is communicated with the outer vertical surface through a support frame; both the inner vertical surface and the outer vertical surface comprise upper chords, lower chords, vertical rods and oblique rods; the vertical rods and the oblique rods are used for connecting the upper chords and the lower chords together; the two ends of the lower chords are connected with connecting ends; a fixed support is arranged at the bottom of the connecting end on one side of each lower chord; a movable support is arranged at the bottom of the connecting end on the other side of each lower chord; joint points are set at the bottoms of the fixed support; and movable sliding chutes are formed at the bottoms of the movable supports. According to the transition connection device, the overall stress points of a bridge can be dispersed, concentrated stress points are reduced, meanwhile the bearing capacity and bearing area of a mouth-shaped aluminum alloy pedestrian bridge are increased, the stability of the mouth-shaped aluminum alloy pedestrian bridge is ensured, and the pedestrian bridge has the advantages of reasonable structure, high stability, high reliability, high durability and regular and practical overall effect.
Owner:SHANDONG NOLLVETEC LIGHTWEIGHT EQUIP CO LTD

A kind of heat-dissipating powder coating and preparation method thereof

The invention provides a heat-dissipating powder coating and a preparation method thereof. The powder coating comprises saturated carboxyl-terminated polyester resin, curing agent, composite heat-dissipating filler, alignment agent, titanium dioxide, polytetrafluoroethylene, aluminum pigment and other components; wherein The composite heat-dissipating filler is prepared from hexagonal boron nitride, aluminum hydroxide and aluminum oxide through ball milling, mixing and spheroidizing in sequence, which can effectively improve the thermal conductivity of the composite heat-dissipating filler and synergize with aluminum pigments, making the powder coating of the present invention It has a remarkable heat dissipation effect; the invention adds an alignment agent with a hydroxyl content of 1% to 2%, which has a strong affinity with aluminum hydroxide, aluminum oxide, magnesium aluminum silicate, and aluminum pigments, and effectively promotes the spheroidization of composite heat dissipation fillers and aluminum pigments The arrangement tends to be neat, and can effectively promote the establishment of a good overlap between the overall components in the formula, and generally prepare a powder coating with excellent comprehensive properties.
Owner:广东华江粉末科技有限公司

Multifunctional tail plate

The invention discloses a multifunctional tail plate which comprises a base, a carrying platform, a lifting device, a conveying device and a sensing system. The lifting device comprises a first lifting mechanism and a second lifting mechanism; the first lifting mechanism comprises four supports and four lifting hydraulic cylinders, the four supports and the four lifting hydraulic cylinders are arranged on the base, the four supports are evenly distributed along the periphery of the base and correspond to the four lifting hydraulic cylinders in a one-to-one mode, the upper end of each lifting hydraulic cylinder is hinged to the carrying platform, and the lower end of each lifting hydraulic cylinder is hinged to the corresponding support; the second lifting mechanism comprises a rotating shaft and a power assembly; the rotating shaft is rotationally connected between the two supports located at the rear end of the base, and the two ends of the rotating shaft are fixedly connected with the lower ends of two lifting hydraulic cylinders respectively; the power assembly comprises a power hydraulic cylinder and a connecting rod. The multifunctional tail plate does not need to be installedat the tail of an automobile, can be in lap joint with any automobile, achieves cargo loading and unloading, is high in working efficiency and can achieve continuous conveying.
Owner:GUANGZHOU UNIVERSITY

Flexible display panel and display device

The embodiment of the invention provides a flexible display panel and a display device, the flexible display panel comprises a display area and a non-display area arranged around the display area, the non-display area comprises a lap joint area, and the lap joint area is internally provided with a first insulating layer, a second insulating layer and a third insulating layer; the first metal layer is arranged on the side, away from the display face of the flexible display panel, of the first insulating layer, at least part of the area is exposed in the display direction of the flexible display panel, and the exposed area of the first metal layer is used for being bound with a driving chip; the auxiliary structure is arranged on the side, away from the display surface of the flexible display panel, of the first metal layer and corresponds to the exposed area of the first metal layer, so that the exposed area of the first metal layer partially protrudes. According to the auxiliary structure, part of the exposed area of the first metal layer can protrude, so that the lap joint area of the exposed area of the first metal layer and the driving chip can be increased, the lap joint effect of the first metal layer is good, and the display quality of the flexible display panel is improved.
Owner:SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD

A construction method of homogeneous earth dam and culvert pipe through the dam for contact erosion anti-seepage grouting and detection method of grouting effect

The invention relates to a homogeneous earth dam and dam penetrating culvert pipe contact scouring anti-seepage grouting construction method and a grouting effect detection method, and belongs to thetechnical field of the hydro-junction. The detection method comprises the steps that after one week after grouting is finished, a high-density electrical method and other geophysical prospecting methods are used for detecting the continuity situation of a cement wall; then, part of soil mass within the grouting range is excavated for observing of the slurry veins and the lap joint situation between the adjacent slurry veins; and finally, part of the slurry veins are selected, the thickness of the slurry veins is measured, and the seepage resistance of the slurry veins is evaluated. According to the homogeneous earth dam and dam penetrating culvert pipe contact scouring anti-seepage grouting construction method and the grouting effect detection method, a seamless steel pipe is utilized as agrouting floral tube, and a good grouting effect is achieved; and the slurry vein thickness is uniform, the lap joint effect is good, and the slurry vein walking direction is controllable. Meanwhile,the invention provides a method for detecting and assessing the field grouting effect through a field excavation and high-density electrical method combining manner, systematic and quantitative analysis and assessment on the grouting effect can be achieved, and a reliable reference basis is provided for improving the construction technology according to the information fed back according to the grouting effect.
Owner:SHANDONG UNIV

Anti-seepage wall grooving mould and high polymer anti-seepage wall grouting equipment

The invention discloses an anti-seepage wall grooving mould and high polymer anti-seepage wall grouting equipment. The anti-seepage wall grooving mould comprises a grooving blade, the middle part of the grooving blade is provided with a vertical middle push rod, a vertical guide rod is installed on the edge of one side of the grooving blade, the lower end of the guide rod extends downward along the lower end of the middle push rod, the edge of the other side of the grooving blade is provided with a detachable conehead, the upper end of the cone head is connected with a rubber bar, and the upper end of the rubber bar extends to the ground. The anti-seepage wall grooving mould and the high polymer anti-seepage wall grouting equipment have the advantages that 1, the long guide rod is arranged,when rearslotted holes are constructed, the guide rod can be made to be connected to the last slotted hole of the adjacent rear slotted holes, adjustment of grooving directions during grooving of therear slotted holes is convenient, trepanning accuracy can be improved, and deviation accumulation is further reduced; and 2, the detachable cone head is arranged, the cone head is connected with therubber bar, when the grooving mould is pulled out after grooving is constructed, the cone head and the grooving blade can be separated, and up and down communication and exchange of outside air and air in the slotted holes of the cone head and the rubber bar connected with the cone head can be realized.
Owner:ZHENGZHOU UNIV
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