18results about "Moulding surfaces" patented technology

The invention relates to a UHPC prefabricated slab, a UHPC prefabricated bridge deck slab and a prefabricated slab mold, and the UHPC prefabricated slab comprises a prefabricated slab body which comprises ultra-high performance concrete and a reinforcing mesh pre-buried in the ultra-high performance concrete; the multiple threaded rods are located on the side wall of the ultra-high performance concrete, and all the threaded rods are partially embedded in the ultra-high performance concrete; a plurality of interface reinforcing steel bars are arranged, and the plurality of interface reinforcing steel bars are partially pre-buried on the side wall of the pre-ultra-high performance concrete in the horizontal direction. The threaded rods and the interface reinforcing steel bars located on the side wall of the prefabricated slab body can increase the contact area of an interface to the maximum extent, the bonding tensile strength and the crack resistance of the interface are improved, and the upper limit of interface cracking is improved. The threaded rod and steel fibers in UHPC have the same effect, meanwhile, the interface scabbling technology is not affected, and the interface strength is improved.

The invention belongs to the technical field of highway bridge construction, and discloses a large-volume concrete prefabricated abutment preformed hole template device, which is characterized in that the plate surfaces of a large circular template and a small circular template are provided with reinforcing steel bar holes through which reinforcing steel bars penetrate, and the adjacent surfaces of the large circular template and the small circular template are adjacent inclined surfaces; the large circular templates and the small circular templates are arranged at intervals and spliced through connecting pieces to form a cylindrical template, the #-shaped support is located in the cylindrical template, and the bottom template is detachably and coaxially fixed to the bottom of the cylindrical template; the large circular templates and the small circular templates are respectively connected with the #-shaped bracket in a sliding manner through sliding pieces, and the two large circular templates and the two small circular templates are driven by corresponding hydraulic oil cylinders to be close to or far away from each other under the guiding action of the sliding pieces; the two ends of the inner wall of the small circular template are fixed to the #-shaped support through at least one detachable supporting rod. The small round die plate can be opened through the hydraulic oil cylinder, and time and labor are saved.

The application belongs to the technical field of highway bridge construction, and discloses a large-volume concrete prefabricated pier reserved hole formwork device, wherein the board surface of a large circle formwork and a small circle formwork is provided with a steel bar hole for the steel bar to pass through, the adjacent surface of the large circle formwork and the small circle formwork is a butt bevel, the large circle formwork and the small circle formwork are arranged at intervals and are spliced through a connecting piece to form a cylindrical formwork, a cross-shaped support is located inside the cylindrical formwork, and a bottom formwork is detachably fixed to the bottom of the cylindrical formwork in the same axis. The large circle formwork and the small circle formwork are slidably connected with the cross-shaped support through sliding members, two large circle formworks and two small circle formworks are driven by corresponding hydraulic oil cylinders to move close to or away from each other under the guidance of the sliding members, and the inner wall of the small circle formwork is fixed to the cross-shaped support through at least one detachable supporting rod at both ends. The small circle formwork can be opened by the hydraulic oil cylinder, thereby saving time and effort.

According to the multifunctional prestressed prefabricated part production line and the using method thereof, end plates with the adjustable height are arranged on a tensioning machine and an anchoring plate, and the tensioning height of prestress can be adjusted so as to adapt to production of various prestressed parts such as prestressed laminated slabs and prestressed box girders; the application range of the prefabricated part production line is enlarged, and the application range is wider; and the integrated tensioning machine is capable of uniformly tensioning a plurality of prestressed tendons at the same time, so that the tensioning speed and the tensioning uniformity of the prestressed tendons are improved, and the tensioning precision is ensured.

The present disclosure provides a curve portion mold structure for manufacturing a curved concrete panel for a mountain railway rack track and a curved concrete panel manufacturing method using the same in which, by forming a curve portion mold structure made of an outer mold and an inner mold to manufacture a curved concrete panel for a mountain railway rack track, the curvature of the outer mold and the curvature of the inner mold can be simultaneously adjusted, and a curve can be implemented by a difference in pressure introduction of a screw jack at a side surface of the outer mold. Also, by dividing a bottom plate of the outer mold to form the bottom of the curved concrete panel, application to various forms of curvatures of the curved concrete panel is possible, and by implementing a curvature by coupling between blocks using a fastening pin in an inner mold made of an intermediate block, an end block, and an impact-absorbing block, the curved concrete panel for a mountain railway rack track can be easily manufactured.

A forming mold for foamed thermal insulation ceramic plates, and a forming method for using the mold to prepare a foamed thermal insulation ceramic plate. The forming mold for foamed thermal insulation ceramic plates comprises: a base plate (4), wherein two symmetrically arranged sliding portions (16) are fixedly mounted on the base plate (4), a side plate (6) that can slide vertically is mounted on the upper end of each sliding portion (16), an extension plate (61) is fixedly mounted on the outer side of each side plate (6), and a spring (10) is fixedly mounted between each extension plate (61) and the base plate (4); end plates (15), which are located on the front and rear sides of the base plate (4); magnetic attraction blocks (11), which are attracted to the edges at the upper ends of the sliding portions (16); upper side plates (12), which are inserted into the upper ends of the side plates (6); an upper plate (14), which can drive, when being pressed, the upper side plates (12) and the side plates (6) to move downward together; and a limiting plate (7), the bottom of which is rotatably mounted on the base plate (4). During the forming of a foamed thermal insulation ceramic plate to be prepared, the heat transfer efficiency inside the foamed thermal insulation ceramic plate can be improved, thereby ensuring that the foamed thermal insulation ceramic plate expands evenly when being heated, and thus reducing the phenomena of cracking and spalling.

The invention relates to the technical field of green buildings, in particular to a stable and controllable precast concrete member surface quality improving method. The process comprises the steps of steel mold table polishing and cleaning, long-acting release agent brushing, mold assembling, steel skeleton implanting, pouring and maintaining, demolding and surface protecting. The outer side of the component is a clear water veneer with a mirror surface effect, and a protective film is arranged on the outer surface of the clear water veneer. According to the method, double-stage grinding is matched with the long-acting release agent, the roughness Ra of the ground surface of the steel mold table is smaller than or equal to 1.6 microns, and the surface smoothness of a component achieves the mirror surface effect; the slurry leakage rate is reduced to 5% or below through the treatment of the chamfering strips at the die combination position, and the defects of concrete surface honeycombs, pitted surfaces and the like caused by slurry leakage are effectively avoided; by optimizing the vibrating process and controlling the quality of raw materials, the bubble rate on the surface of the component is smaller than or equal to 0.5%, the bubble diameter is smaller than or equal to 2 mm, the distance is larger than or equal to 50 mm, the surface of the component is smoother, the overall quality and attractiveness of the component are greatly improved, and the rate of finished products exceeds 95%.

The invention discloses a self-calibration fiber grating sensor prefabricated part production mold and a construction method, and belongs to the technical field of prefabricated buildings. The device comprises a base plate, a pouring cavity used for forming a prefabricated part and a core mold used for forming an optical fiber penetrating through a hole groove in the prefabricated part pouring process, and the two sides of the pouring cavity are provided with penetrating hole arrangement mechanisms used for adjusting different positions of the hole groove in the prefabricated part pouring process. A core mold arranging mechanism used for hole groove forming in the prefabricated part pouring process is arranged on one side of the pouring cavity. Through the arrangement of the perforation arrangement mechanisms on the two sides of the pouring cavity, the multiple sets of clamping plates can be combined and arranged on the inner walls of the two sides of the pouring cavity, so that different positions of pouring forming hole sites in a prefabricated part are adjusted, through the arrangement of the core mold arrangement mechanisms, the arrangement of the multiple sets of clamping plates in the perforation arrangement mechanisms can be matched, and the production efficiency is improved. The multiple sets of core molds are conveniently assembled and arranged on the connecting plate in a matched mode, and then hole sites in different positions are machined and formed.

The application discloses a prefabricated bridge deck pouring and vibrating integrated device for a steel-concrete composite beam bridge, which comprises a supporting system, a combined steel formwork system and a vibrating and screeding system. The supporting system comprises a plurality of concrete foundation blocks, and the concrete foundation blocks are fixedly provided with supporting beams. The combined steel formwork system comprises block-combined and assembled long-side steel side forms, integral short-side steel side forms and a steel plate bottom form. The steel plate bottom form is laid on the supporting beams, the integral short-side steel side forms and the steel plate bottom form are clamped between the block-combined and assembled long-side steel side forms on the two sides, and the height of the block-combined and assembled long-side steel side forms is higher than that of the integral short-side steel side forms. The vibrating and screeding system comprises attached vibrators arranged in a matrix mode at the bottom of the steel plate bottom form and a self-walking vibrating and screeding integrated vibrating mechanism above the combined steel formwork system, wherein the self-walking vibrating and screeding integrated vibrating mechanism takes the block-combined and assembled long-side steel side forms as a walking track.

The invention discloses an assembly type prefabricated laminated slab slurry leakage prevention structure and method, and relates to the technical field of laminated slabs, the assembly type prefabricated laminated slab slurry leakage prevention structure comprises a grouting base and a control device arranged on the grouting base, and the grouting base is provided with a laminated slab mold shell used for laminated slab forming; the laminated slab formwork comprises grouting formworks, a connecting assembly used for being connected with the grouting formworks, a leakage-proof assembly used for preventing grout leakage at the connecting positions of the grouting formworks and a fastening assembly used for fastening the grouting formworks at the corners. The adjusting assembly is arranged on the grouting base, and the pressing mechanism is used for preventing a gap between the grouting template and the grouting base from leaking grout. According to the device, the leakage-proof assembly is arranged, so that slurry is prevented from leaking out of the gaps between the grouting formworks, meanwhile, the pressing mechanism and the leakage-proof block are arranged, so that the slurry is prevented from leaking out of the gaps between the grouting formworks and the grouting base, and the problem of slurry leakage of the laminated slab formwork is effectively solved.

The invention discloses a modular efficient floor heating mat and a mold and a construction method for preparing the modular efficient floor heating mat, and relates to the field of building heating equipment. The floor heating mat comprises the cement columns which are arranged in a linear array mode, the requirement for square continuous splicing is met, splicing can be achieved without direction distinguishing, a low-heat-conduction hard plastic bottom plate can be selected, and the heights and the intervals of the cement columns are matched with floor heating pipes. The preparation mold comprises a top plate with a taper hole, a mold cavity can be formed independently or matched with a bottom plate with a round hole, the top plate is provided with a clamping positioning pin and a mark, and accurate forming and demolding are facilitated. No-bottom-plate on-site forming or bottom-plate prefabrication / on-site preparation can be selected for construction, the floor heating pipes are naturally limited, and the ceramic tiles are firmly laid. The problems that an existing plastic floor heating pad is weak in supporting, slow in full cement backfilling temperature rising and difficult to maintain are solved, and the plastic floor heating pad has the advantages of being stable in supporting, efficient in temperature rising, convenient and fast to maintain and efficient in construction.

The invention relates to a measuring device (1) for determining at least one processing property of construction and / or thick material (D), wherein the measuring device (1) comprises: a nozzle assembly (2) having a nozzle opening (3), wherein a sample (P) of construction and / or thick material (D) can be extruded through the nozzle opening (3) in a substantially horizontal extrusion direction (E) of the measuring device (1) in order to form a sample strand (S); a tube body (4) that delimits an interior space (5) of the tube body for receiving the sample (P) to be extruded, wherein the nozzle opening (3) opens the interior space (5) of the tube body to the outside; and a piston (6) relative to which the tube body (4) is adjustable against the extrusion direction (E) in order to displace the sample (P) from the interior space (5) of the tube body in such a manner.that the displaced sample (P) can be extruded through the nozzle opening (3) to determine at least one processing property, thereby forming the sample strand (S).

This invention belongs to the field of PC component production technology, specifically relating to a heating mold for dry and wet heat curing of PC components. It includes a mold platform for fixing PC components, a frame fixed to the ground, and a rectangular curing cover within the frame. The lower end of the rectangular curing cover is located below the ground surface. The interior of the rectangular curing cover is a hollow cavity, including a first curing cavity, a second curing cavity, a third curing cavity, and a fourth curing cavity. Steam pipes are provided on the side walls of the first and second curing cavities, and ventilation pipes are provided on the side walls of the third and fourth curing cavities. Compared with the prior art, this invention has the following advantages: it effectively utilizes above-ground and underground space, forming four curing cavities in a three-dimensional space, reducing heat loss; it simultaneously cures multiple mold platform groups, achieving integrated dry and wet heat curing, effectively improving curing efficiency; the various curing cavities are interconnected yet somewhat separated, mutually supplementing each other's heat energy, increasing energy efficiency compared to horizontal curing.

The invention discloses intelligent machining equipment for railway assembly production. The intelligent machining equipment comprises a frame, a horizontal driving mechanism is arranged on the frame, a shell is arranged on the horizontal driving mechanism, a movable plate is arranged on the lower side of the interior of the shell in a sliding mode, a lifting assembly is arranged between the interior of the shell and the movable plate, and a clamping assembly is arranged on the movable plate; according to the device, the lifting assembly and the clamping assembly can be matched with each other to stably move up and down to grab a sleeve and install the sleeve; the expansion piece expands to push the sliding plate and the sliding rod to move downwards, so that the lower end of the sliding rod is lower than the lower end of the sleeve, and the lower end of the sliding rod can enter the positioning hole firstly, so that the lower end of the sliding rod slides in the positioning hole, and the sleeve and the positioning column are subjected to circle center alignment guide movement; the sleeve can be quickly mounted on the outer wall of the positioning column, and the mounting precision of the sleeve is improved.

The application discloses an assembled precast laminated slab anti-leakage structure and method, and relates to the technical field of laminated slab, which comprises a grouting base and a control device arranged on the grouting base. The grouting base is provided with a laminated slab formwork for forming the laminated slab. The laminated slab formwork comprises a grouting template, a connecting assembly for connecting the grouting template, an anti-leakage assembly for preventing leakage of grout at the connecting position of each grouting template, and a fastening assembly for fastening the grouting template at the corner. The laminated slab formwork further comprises an adjusting assembly arranged on the grouting base and a pressing mechanism for preventing leakage of grout at the gap between the grouting template and the grouting base. The anti-leakage assembly is arranged on the laminated slab formwork, so that the grout is prevented from leaking out of the gap of each grouting template. Meanwhile, the pressing mechanism and the anti-leakage block are arranged, so that the grout is prevented from leaking out of the gap between the grouting template and the grouting base. Therefore, the problem of leakage of grout of the laminated slab formwork is effectively solved.

The invention relates to a measuring apparatus (1) for determining at least one processing property of building material and / or thick matter (D), wherein the measuring apparatus (1) has: a nozzle device (2) which has a nozzle opening (3), wherein a sample (P) of building material and / or thick matter (D) can be extruded through the nozzle opening (3) in a substantially horizontal extrusion direction (E) of the measuring apparatus (1) in order to produce a sample strand (S) in a shaping manner; a tubular body (4) which delimits a tubular body interior (5) for receiving the sample (P) to be extruded, wherein the nozzle opening (3) opens the tubular body interior (5) to the outside; and a piston (6) relative to which the tubular body (4) can be adjusted counter to the extrusion direction (E) in order to displace the sample (P) out of the tubular body interior (5) in such a manner that the displaced sample (P) can be extruded through the nozzle opening (3), thereby producing the sample strand (S) in a shaping manner, for determining the at least one processing property.

The invention relates to the field of building molds, in particular to a prefabricated shear outer wall combined demolding-free mold. The prefabricated shear outer wall combined type demolding-free mold comprises a top mold body, two side mold bodies and a bottom mold body, the top mold body comprises a top common mold body and a top customized mold body, and the top common mold body is detachably connected with the top customized mold body; one ends of the two side molds are detachably connected with the two ends of the top mold in a one-to-one correspondence manner; the two ends of the bottom mold are connected with the other ends of the two side molds in a one-to-one correspondence mode, and the connecting positions of the bottom mold and the other ends of the two side molds can be changed. According to the prefabricated shear outer wall combined type demolding-free mold, due to the fact that the connecting positions of the bottom mold and the other ends of the two side molds can be changed, the length of the top mold can be changed by changing the length of the top customized mold, and then the overall size of the demolding-free mold is changed to adapt to outer walls of different models; the repeated utilization rate of the mold is improved, and the use cost of the mold is reduced.

The present application relates to precast concrete component production equipment technical field, disclose a kind of new mould platform stacker, it includes prefabricated platform, lifting device and support sliding device;The lifting device and support mobile device are all installed on prefabricated platform, the lifting device is used to lift mould platform, the support sliding device is used to convey mould platform to the side of lifting device, lifting device outside is equipped with frame, and the frame is installed on prefabricated platform;The lifting device is provided with telescopic component for telescopic clamping mould platform and lifting component for pushing telescopic component to lift.The present application has lifting device installed on prefabricated platform, that is, in low place, then using the space below, frame does not need to be made very high, only needs to have the space of mould platform lifting, greatly reduces the height of frame, and reduces the cost of equipment effect.