810results about "Ceramic shaping cores" patented technology

The invention relates to the technical field of wind power equipment manufacturing, in particular to a wind power concrete tower drum mold which comprises a bottom mold body, an outer mold body and an inner mold body. The outer mold comprises a plurality of first modules and a plurality of first connecting flexible plates, the first modules can be connected to form a cavity, one first connecting flexible plate is connected between every two adjacent first modules, the inner mold comprises a plurality of second modules and a plurality of second connecting flexible plates, and the inner mold and the outer mold form a pouring cavity. The arrangement mode of the inner mold is consistent with that of the outer mold; when the diameter of the outer mold needs to be decreased, the two adjacent first modules are folded towards the outer side of the cavity, when the diameter of the outer mold needs to be increased, the two adjacent first modules are unfolded towards the inner side of the cavity, and the area of the top plane of the cavity before the diameter is changed is equal to the area of the bottom plane of the cavity after the diameter is changed; the diameter changing mode of the inner mold is the same as that of the outer mold; the die has the effect of improving the defect that the diameter of the die is inconvenient to adjust.

The invention discloses a self-regulation internal mold system for a prefabricated box girder, and relates to the technical field of prefabricated box girders. A displacement trolley is displaceably arranged at the top of the sliding seat cross beam; the side edge top plate and the side edge bottom plate are assembled by arranging the combined top plate, and the situation that an existing adjusting formwork is difficult to adapt to different widths in the pouring process is avoided by adopting transverse plate overall assembly and sectional assembly; the phenomenon that concrete on the middle side below the bottom film is difficult to vibrate and exhaust is solved through segmented installation, the phenomenon that the concrete flows into the bottom film and is solidified under the cooperation of side edge connecting pieces, and consequently an adjusting joint of a formwork loses efficacy is reduced, and by arranging a sliding base cross beam and a centering support of a displacement trolley, the formwork can be stably adjusted. The load of the side edge top plate is completely transmitted to the sliding seat cross beam through the double-shaft adjusting cylinder assembly, disturbance to concrete below the bottom film is reduced in the pouring process, and cracks are prevented from being formed in the concrete pouring process.

A composite material hollow guide vane forming die comprises a bottom die and a pressing die, the bottom die is fixedly arranged, the pressing die can move relative to the bottom die, and the pressing die and the bottom die jointly define a forming space of a composite material hollow guide vane. Wherein the bottom die comprises a core die, the core die comprises an expansion body, the circumferential surface of the expansion body is configured to be an annular laying supporting face, and the expansion body enables the laying supporting face to expand in the radial direction. The mold can provide uniform pressure from inside to outside for the prefabricated body in the forming process, the uniformity of forming pressure distribution is improved, the prefabricated body is fully compacted, the quality defect caused by dimensional deviation or thermal expansion performance difference is avoided, and the part performance is improved. The invention further provides a manufacturing method of the composite hollow guide vane.

The utility model provides a hydraulic box girder template, which comprises an inner mold, an outer mold and a side baffle mold, a left side mold, a right side mold and a lower mold are connected with an upper mold through a right hydraulic cylinder, a left hydraulic cylinder and a lower mold hydraulic cylinder, so that the left side mold, the right side mold and the lower mold are easier to demold; a right hydraulic cylinder, a left hydraulic cylinder and a lower mold hydraulic cylinder can support an inner mold structure, damage to a box girder which is being poured or to be solidified is avoided, a left side mold, a right side mold and a lower mold are fixed through a right triangular plate and a left triangular plate, the inner mold structure is more stable, the service life of the inner mold is longer, and sliding grooves are formed in the inner side of a left outer mold and the inner side of a right outer mold correspondingly. The left side and the right side of the base are installed on the sliding grooves, and the walking wheels are installed at the lower end of the base, so that the box girder can be conveniently demolded from the outer mold through the base, the box girder can be transported to a designated position through the walking wheels, operation can be conducted again conveniently, and operation efficiency is improved.

The invention discloses a forming process and a forming mold of a precast concrete box-type house. The forming process comprises the following steps: step S1, pouring concrete out of a house bottom plate; s2, a wall plate inner mold and a wall plate outer mold are mounted on the house bottom plate subjected to pouring forming, and a wall plate pouring cavity is formed between the wall plate inner mold and the wall plate outer mold; s3, a top plate mold is in lap joint with the wallboard inner mold, and a top plate pouring groove is formed between the top plate mold and the wallboard outer mold; s4, a temporary supporting rod is arranged at the bottom of the top plate mold; s5, concrete is poured into the wall plate pouring cavities and the top plate pouring grooves, and house wall plates and roof plates are formed; s6, after the house wall plates and the roof plate are poured and formed, the wall plate inner mold, the wall plate outer mold and the temporary supporting rods are removed; the top plate formwork is a non-dismantling formwork, and the top plate formwork is reserved on the roof plate formed through pouring. The production efficiency of the box-type house can be improved.

The invention relates to a top-cover-free rectangular concrete body inner mold demolding device and demolding method.According to the top-cover-free rectangular concrete body inner mold demolding device, through innovative structural design, a rectangular inner mold is divided into two angle molds and two L-shaped molds, and a track extending by a specific angle (45 degrees in the horizontal direction) and an intermittent driving device are matched. During demolding, the intermittent driving device can accurately drive the two angle molds to synchronously slide inwards firstly, the contact area and friction force between the inner mold and a concrete body are effectively reduced, then the two L-shaped molds are driven to synchronously slide inwards, and the whole demolding process is completed. Compared with a traditional demolding mode, the demolding efficiency is greatly improved, and the demolding time is shortened; by the adoption of the gradual demolding mode, direct beating and violent disassembly of the mold and the concrete body are avoided, the risk that the inner mold and the concrete body are damaged is effectively reduced, the surface integrity and the internal structural strength of the concrete body are guaranteed, the service life of the inner mold is prolonged, and the production cost is reduced.

The utility model discloses a concrete inclined plane inner film anti-floating tool which comprises two wood molds and an inner film main body arranged between the two wood molds, and further comprises a plurality of pressing plates rotationally arranged on the wood molds through rotating shafts, and a plurality of clamping plates rotationally arranged on the inner film main body through rotating shafts, the pressing assembly is arranged on the pressing plate; the pressing assembly is arranged at the position of the wood mold and matched with the reinforcing assembly, when concrete pouring is conducted in the inclined wood mold, the inner mold can be pressed, and therefore the phenomenon that the inner mold cannot be pressed when the concrete pouring is conducted in the inclined wood mold is avoided. The inner film main body floats upwards under the condition that the pressure intensity of the upper part is greater than that of the lower part and concrete has certain buoyancy, so that a cavity formed after pouring is deformed.

A large immersed tube full-section prefabricated lightweight formwork system comprises an inner formwork rack and an outer formwork rack, the inner formwork rack comprises an inner formwork fixing frame and an inner supporting rod assembly, the outer formwork rack comprises a top truss and two outer side trusses, an inner formwork comprises an inner formwork body and a lower chamfering part, and the inner supporting rod assembly comprises an inner supporting connecting rod and an inner telescopic oil cylinder. According to the embodiment of the invention, the inner template mounted on the inner template rack extends to the lower chamfer, and the three inner support connecting rods which are in the same straight line under the support of the two inner telescopic oil cylinders are used as the inclined support structure, so that the concrete which is firstly solidified at the lower chamfer can upwards support the horizontal part at the top of the inner template through the inclined support structure; and under the conditions of large span and large weight, the top plate reinforcing steel bars are stably supported, and the situation that the prefabrication precision of the immersed tube top plate is reduced due to downward deformation of the top plate reinforcing steel bars is avoided.

The invention discloses a construction technology for a prefabricated drainage box culvert steel formwork, and is suitable for the technical field of box culvert formwork construction. The drainage box culvert steel formwork system comprises the construction steps of construction preparation, installation of a pedestal and an inner formwork support, installation of a box culvert foundation, installation of an inner formwork assembly, installation of a formwork assembly, one-time pouring forming, formwork removal after pouring and transferring. The construction site regionalization layout is adopted, a box culvert steel bar binding area and a formwork installation transverse moving area with an adjustable inner formwork support are arranged, the circulating operation of formwork erecting, pouring, demolding and transferring is achieved through a main beam suspension type inner formwork assembly, and a hydraulic formwork collecting device is innovatively adopted for driving a symmetrical hinged type inner formwork system; and in combination with the symmetry and multi-point uniform stress characteristics of a plurality of auxiliary supporting devices, the bending deformation of the inner template is effectively controlled through sequential control of a layered equal-height high-speed pouring process with preferential base angles.

The invention relates to the technical field of building construction, in particular to a modular building full-automatic prefabricating mold system and an operation method thereof. The prefabricating mold comprises an outer mold device and an inner mold device, the outer mold device comprises a first peripheral wall plate arranged around the vertical axis, the inner mold device is arranged in the first peripheral wall plate, and the inner mold device comprises a second peripheral wall plate arranged around the vertical axis. An annular mold cavity is jointly defined between the second peripheral wall plate and the first peripheral wall plate, the interior of the mold cavity is used for prefabricating a machined part, the second peripheral wall plate forms a rectangular structure in an enclosing mode, the second peripheral wall plate comprises corner mold parts oppositely arranged in the diagonal direction and L-shaped mold plates oppositely arranged in the diagonal direction, and the corner mold parts and the L-shaped mold plates are oppositely arranged in the diagonal direction. The corner module is driven by a first driving mechanism, and the L-shaped template is driven by a second driving mechanism. The operation method applies the prefabricated mold. The operation method adopting the prefabricating mold is high in automation degree.

According to the hollow concrete pile core mold tensioning structure, a pouring core mold is supported by a tensioning framework, the outer side of the tensioning framework is wrapped with an elastic skin, the elastic skin forms a hollow structure during concrete pouring through circumferential stretching or stretching of the tensioning framework, and the hollow structure is pulled out of a center hole after forming; and pouring forming of the hollow concrete pile is completed, the tensioning framework supports the elastic skin in an attached mode through the multiple inner supporting plates, the inner supporting plates are supported in the radial direction through the jacking structure, and in the process, expansionary force and supporting force of the elastic skin are provided. The pouring core mold is in tensioning fit with the tensioning plate set through the tensioning rod, the tensioning rod is connected with the tensioning adjusting device, the tensioning adjusting device can tighten or loosen the jacking structure, the inner supporting plate is supported or recycled by the jacking structure, and forming of the hollow structure of the hollow concrete pile through the elastic skin is completed. The invention further provides a hollow concrete pile tensioning die.

The invention relates to the technical field of ceramic forming equipment, and discloses a weaving machine ceramic nozzle pressing forming device which comprises a workbench, a mold cover installed on the workbench, a mold core inserted into the mold cover, a driving motor installed at the bottom of the workbench, a synchronous plate, a guide plate, a knocking rod, a synchronous rod and a combined groove. In the pressing forming process, a driving motor drives a lead screw shaft and an adjusting roller to rotate, a lead screw lantern ring on the lead screw shaft drives a flat plate and a pressing plate to move downwards, the bottom of the pressing plate can slide downwards through a pressing block connected with a pressing rod, and then the pressing block is inserted into a mold cover to press raw materials, so that a nozzle can be formed; and the knocking rod is pushed to continuously knock in the movement of the lantern ring, so that the knocking range is wider, the oscillation is more uniform, only one driving source is used in the pressing and oscillation processes, the equipment production cost is lower than that in the prior art, and the later maintenance is more convenient.

The invention provides a cross beam matching prefabricating mold and a construction method thereof, a bottom mold is arranged on a movable trolley, the movable trolley is arranged on a track, a fixed end mold frame is arranged at one end of the bottom mold, a movable end mold frame is arranged at the other end of the bottom mold, and outer side mold frames are arranged on the two sides of the bottom mold; the outer side mold frames and the movable end mold frames on the two sides are connected with the mold plate through demolding lead screws. A movable inner core mold frame is further arranged in the bottom mold. Through the reasonable mold structure design, such as the connection mode of all parts and the arrangement of the demolding lead screw, the operation of assembling, adjusting, demolding and the like of the mold is more convenient and efficient, so that the labor intensity of workers in the construction process is reduced, and the construction efficiency is improved.

The invention relates to an ecological frame mold and a using method thereof, and relates to the technical field of ecological frame molds. The ecological frame mold is used for manufacturing an ecological frame and comprises an outer mold mechanism and an inner mold mechanism. The sliding rails are arranged to drive the four formworks of each outer formwork mechanism, the formwork disassembling and assembling efficiency of the outer formwork mechanisms can be improved, and the construction efficiency of ecological frame manufacturing is improved; after an inner mold mechanism is installed on the bottom mold plate, a first rack and a second rack can be driven by rotating a gear bearing rod so as to drive a first pull rod and a second pull rod to move, and then the two L-shaped inner mold plates and the two fillet inner mold plates are controlled to conduct mold disassembly and mold assembly movement; and the two fillet inner templates and the two L-shaped inner templates have a certain motion starting time difference, so that the two templates do not interfere with each other when the two templates are subjected to mold removal and mold closing motion, normal operation of the mold removal work can be guaranteed, and the mold removal and mold closing efficiency of the inner mold mechanism can be effectively improved.

The invention discloses a horizontal two-dimensional orientation steel fiber UHPC wind power tower drum ring piece preparation device and method, and relates to the technical field of wind power tower drum engineering. The device is mainly composed of an annular mold, an annular sliding rail, an electric sliding block, coils and a direct-current power source, the direct-current power source supplies power to the coils on the inner side and the outer side to generate a uniform and controllable magnetic field, the coils are driven by the electric sliding block to achieve synchronous annular rotation, the magnetic field intensity and the action time are adjusted according to different flowing degrees of UHPC mixtures, and therefore the UHPC mixtures can be manufactured. And under the action of a rotating magnetic field, the steel fibers form two-dimensional distribution in a horizontal plane. Compared with a traditional UHPC wind power tower drum, the horizontal two-dimensional directional steel fiber reinforced UHPC wind power tower drum produced by the device has the advantages that the compression bearing capacity is improved by 15%-20%, and the compression fatigue resistance is improved by 40%-50%. According to the tower drum structure, the thickness of the tower drum ring section can be reduced by 10%-20%, the dead weight of the tower drum and the consumption of raw materials are reduced, and the transportation and construction cost is reduced. The device is simple in design and convenient to disassemble and assemble, has efficient and reliable industrial production potential, and can be widely applied to manufacturing and optimization of wind power towers.

The utility model relates to a hollow inner mold anti-floating fixing support, and relates to the technical field of bridge engineering, the hollow inner mold anti-floating fixing support comprises two co-pressing beams and a base connected with an outer mold, the two sides of the base are symmetrically and fixedly provided with at least two sets of vertical rod pieces, the vertical rod pieces are arranged in the vertical direction, and the height of the vertical rod pieces can be adjusted; wherein one co-pressing beam is fixedly connected with the tops of all the vertical rod pieces located on one side of the base, the other co-pressing beam is fixedly connected with the tops of all the vertical rod pieces located on the other side of the base, the bottoms of the two co-pressing plates are jointly provided with a plurality of cross beams, the bottoms of the cross beams are vertically provided with connecting pieces, and the connecting pieces are used for connecting the cross beams and the inner film. The device has the effect of conveniently adjusting the position of the cross beam so as to correct and adjust the height position of the inner film.

The invention relates to a prestressed shield tunnel and a lining member prefabrication method thereof.The prestressed shield tunnel is formed by splicing a plurality of prestressed shield segments, a hole channel is formed in each prestressed shield segment, each hole channel comprises a pipe body and two hole channel expansion sections located at the end of the corresponding prestressed shield segment, and the pipe bodies are communicated with the hole channel expansion sections; in the prefabrication process of the prestressed shield segment, the pore channel expansion section is a concrete pipeline formed by a pore channel fixing mold used for fixing a pipe body in the concrete pouring process. According to the invention, the end part of the duct is designed into the expansion section, so that the demolding process can be obviously improved, and meanwhile, the penetration process of the prestressed steel bundle in the duct after the duct pieces are assembled into a ring is also improved. And the opening of the expansion section is large, so that the duct fixing mold is more easily separated from the tube sheet. And meanwhile, the pore channel expansion section also provides a wider inlet and outlet for the prestressed steel beam, so that the prestressed steel beam is more easily transited from one duct piece to the pore channel of the next duct piece.

The invention discloses a UHPC sheath pouring mold for a pile foundation and a pouring method of the UHPC sheath pouring mold, and relates to the technical field of building construction equipment. A protection assembly for improving the structural strength of the pile foundation is arranged on the outer side of the pile foundation; the outer side of the protection assembly is wrapped with a pouring mechanism for conducting pouring preparation on the protection assembly, the pouring mechanism comprises an inner mold, and two outer molds are symmetrically installed on the outer side of the inner mold; the protection assembly comprises a supporting framework placed between an interlayer of the outer mold and an interlayer of the inner mold, and the outer side of the supporting framework is wrapped with an inner steel mesh and an outer steel mesh. The pouring mechanism is matched with pouring of concrete grout to prepare the protection assembly, then the protection assembly is carried and installed on the outer side of the pile foundation, and the structural strength of the pile foundation is improved. The UHPC sheath pouring mold for the pile foundation and the pouring method of the UHPC sheath pouring mold have the effects of high performance, high structural strength and high protection capacity.

The invention discloses a prefabricated inspection well mold, and relates to the technical field of inspection well production, the prefabricated inspection well mold comprises a tray used for forming a pouring space, an outer mold and an inner mold, the inner mold is of a split structure, and an inflation pressurization mechanism is arranged on the tray; the air inflation pressurizing mechanism comprises an anti-seepage air brick and an air inflation assembly used for inflating the anti-seepage air brick, the anti-seepage air brick is embedded in the inner mold and communicates with the pouring space, and during demolding, the air inflation assembly inflates the anti-seepage air brick to assist demolding of the inner mold. According to the prefabricated inspection well mold provided by the invention, the anti-seepage air bricks and the inflation assembly are arranged, and gas is injected into the pouring space through the inflation assembly and the anti-seepage air bricks during demolding, so that the effect of assisting demolding is achieved, and the situation that mold sticking occurs between the inner mold and the prefabricated inspection well after pouring is avoided as much as possible.

The invention relates to a fiber-containing ceramic product, in particular to a forming die and a forming method of a ceramic matrix composite slender thin-wall shaft part, which are used for solving the problems that an existing preparation method of a ceramic matrix composite slender thin-wall pipe fitting is only suitable for a thin-wall pipe with the diameter smaller than 20mm and cannot meet the requirements of parts with larger sizes; and as the fiber fabric cannot be sewed, the problems of layering and low yield in the forming process are aggravated. The forming mold of the ceramic matrix composite thin-walled shaft part comprises the core mold, the core mold is formed by splicing the multiple sub core molds, demolding operation is simple, the core mold is not affected by sewing fibers when retreating, and the situation that a prefabricated body is layered or cannot be demolded in the demolding process can be effectively avoided.

The invention relates to the technical field of plate girder pouring, in particular to an inflatable core mold and a working method thereof.The inflatable core mold comprises an end mold and a plate girder pedestal, the plate girder pedestal is provided with a core mold body and a steel bar frame, the upper side of the core mold body is provided with a PVC half pipe, the core mold body comprises an outer-layer air bag and an inner-layer air bag, the outer-layer air bag is divided into a plurality of independent air cavities, and the inner-layer air bag is divided into a plurality of outer-layer air cavities; the outer-layer air bag and the inner-layer air bag are connected with air valves; the steel bar frame comprises a top plate steel bar and a bottom plate steel bar, a drag hook bar is arranged on the upper side of the core mold, side molds are arranged on the two sides of the steel bar frame, a top supporting structure is arranged on the upper sides of the side molds, and the top supporting structure comprises a pressing lever, a rope sleeve and a tensioning structure; the PVC half pipe and the inflatable core mold support are combined, the PVC half pipe has certain rigidity, stable top reverse support can be provided for the core mold, buoyancy can be effectively resisted, and the deformation risk is reduced; the PVC half pipe can be taken out from the plate girder, so that the construction cost is reduced, and the quality of concrete in the cavity is convenient to observe.

The utility model relates to the technical field of tubular molds, in particular to an assembly type tubular mold device which comprises a base, an inner mold plate is arranged on the base, outer mold plates are arranged on the base and located on the outer side of the inner mold plate, the number of the outer mold plates is multiple sets, the outer mold plates are sequentially arranged in the circumferential direction, rib plates are fixedly arranged on the two sides of the outer mold plates, and multiple sets of locking grooves are formed in the rib plates at intervals. A pouring cavity is defined by the inner formwork and the outer formwork, a bottom ring is arranged at the bottom of the pouring cavity of the base, multiple sets of fixing rods are fixedly arranged on the outer side of the outer formwork at intervals in the circumferential direction, pulleys are arranged at the bottoms of the fixing rods, guide rails are arranged on the periphery of the base, and sliding grooves matched with the pulleys are formed in the side faces of the guide rails. According to the device, the pulleys are arranged at the bottom of the outer formwork, so that the outer formwork can horizontally slide along the guide rails on the periphery of the base, the outer formwork can be conveniently separated and combined, and the splicing speed is increased.

To achieve reducing the effort to remove stop plugs and the effort to repair pulling-out holes in concrete when manufacturing PCa members, and reducing the effort to attach / remove stop plugs and the effort to backfill pulling-out holes in concrete, and reducing deterioration in appearance when joining PCa members.SOLUTION: A discharge cap 1 made of a polymer material is used, which includes a seal part 2 inserted into a discharge pipe 14, a head 7, a neck part 6 narrower than the head 7, and a discharge path 9 penetrating from the seal part 2 to the head 7. The discharge cap 1 is attached with the seal part 2 inserted partway into the discharge pipe 14, and a formwork surface presses the head 7 so that the seal part 2 is further inserted, and concrete is poured to manufacture a first PCa member. This first PCa member and another second PCa member are joined by disposing ends of each reinforcing bar inside a sleeve 10, injecting grout, and discharging it from an opening of the discharge cap 1.SELECTED DRAWING: Figure 1

A method of fabricating an airfoil includes providing an airfoil core tube that is made of a rigidized ceramic fabric, using the airfoil core tube as a mandrel by braiding a plurality of ceramic fiber tows around the airfoil core tube to form one or more braided layers, where the airfoil core tube and the one or more braided layers forming an airfoil preform, and densifying the airfoil preform with a ceramic matrix material to thereby form a ceramic matrix composite airfoil.

The invention relates to a manufacturing process of a ceramic pump blank. The manufacturing process comprises the steps of manufacturing a pump body runner wood mold, manufacturing a pump body runner gypsum female mold, assembling a mold, pouring a ceramic pump blank, pouring the ceramic pump blank, demolding, repairing the mold, airing and taking the mold. The pump body runner wood mold and the pump body runner gypsum female mold are combined and assembled into a combined mold with a ceramic pump blank cavity, and then a ceramic pump blank is formed through casting; and in the demolding process, the ceramic pump blank is not deformed or damaged. According to the ceramic pump blank manufacturing process, the ceramic slurry is manufactured into the ceramic pump blank, and preparation is made for subsequent ceramic pump body production.

The invention provides a perforated brick production mold, and belongs to the technical field of perforated brick processing. Comprising a U-shaped fixing plate, one end of the U-shaped fixing plate is inserted into the inner wall of the inserting groove, the other end of the U-shaped fixing plate is fixedly connected with a first fixing plate through a screw, a second fixing plate is fixedly connected to the outer portion of one side of the first fixing plate, and a first round hole groove is formed in the outer wall of the top of the first fixing plate; the end, away from the first fixing plate, of the second fixing plate is fixedly connected with a third fixing plate. By arranging the rotating assembly, the knocking column on the inner wall of the large hole column can be knocked during rotation, so that the large hole column drives the small hole column to shake, bubbles in a concrete mixture in the fixed mold are discharged through vibration generated by cooperation of the knocking column and the small hole column, and meanwhile collapse generated by bubble discharging at the top of the mixture is rolled to be flat.

To provide a hollow form for a precast segment girder and a manufacturing method of the precast segment girder, which can efficiently manufacture a cross section reverse U-shaped precast segment girder capable of easily recognizing aging degradation by visual inspection, a static image, a moving image or the like.SOLUTION: A hollow form 100 for a precast segment girder is for forming a hollow part (21) of a cross section reverse U-shaped precast segment girder (2) where an opening groove (22) is formed by opening a lower part of the hollow part (21) like a groove. The hollow form 100 is partitioned into multiple narrower width pieces than the width of the opening groove (22), and is constituted to be able to remove a form by extracting each piece among the multiple pieces of the hollow form 100 from the opening groove (22) after concrete placing.SELECTED DRAWING: Figure 6