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67 results about "Hollow wall" patented technology

Single-truss double-face presser foot steel bar truss and prefabricated cavity wall

The utility model relates to the technical field of formed reinforcement cages, in particular to a single-truss double-face presser foot steel bar truss and a prefabricated cavity wall. The single-truss double-face presser foot steel bar truss comprises a tie bar and a transverse bar which are integrated. In the length direction of the transverse ribs, a continuous tie rib is wound around the two transverse ribs distributed at intervals in a staggered mode. The single-truss double-sided presser foot steel bar truss of the scheme can be machined by adopting a steel bar bending automatic welding machine, the assembling process during site construction of a traditional steel bar cage is simplified, manpower is saved, due to the fact that the machine is adopted for direct machining, the forming precision of the whole single-truss double-sided presser foot steel bar truss is high, the workload of manual calibration is reduced when vertical bars are welded, and the production efficiency is improved. And the positioning error is reduced. The whole strength of the single-truss double-face presser foot steel bar truss is improved through the whole continuously-bent tie bar, when the single-truss double-face presser foot steel bar truss is used in a prefabricated cavity wall, the deformation resistance of the prefabricated cavity wall can be greatly improved, and when concrete is poured into cavities of the two concrete slabs, large deformation is avoided.
Owner:SUNWARD PREFAB TECH (GUANGZHOU) CO LTD

Fully assembled hollow panel building structure and method of erection thereof

The application discloses a full-assembly hollow plate type building structure and a mounting method thereof, and belongs to the technical field of building industrialized assembly type structures, and aims to solve the problems of large on-site wet work amount, welding or bolt connection, complex construction and large self-weight of components of an existing plate type assembly building connecting joint. The full-assembly hollow plate type building structure is characterized in that: prefabricated hollow floor slabs with bidirectional lengthways bottom reinforcement and bidirectional support surface reinforcement and prefabricated hollow wall slabs with double-layer bidirectional steel mesh are adopted; wall slab connecting pieces and wall slab connecting pieces with toothed plates are pre-welded and formed in a factory; a closed rectangular steel pipe-shaped cavity is formed by toothed plate occlusion at a corner part on site, and concrete is poured to form a rectangular steel pipe concrete column; upper and lower prefabricated hollow wall slabs are connected by setting wall slab vertical lap reinforcement in a second hollow channel and filling components by post-pouring connection; zero welding, no bolt connection and less wet work in full-assembly construction are realized; and the overall stress performance of the building is ensured by a unique joint structure.
Owner:CCCC FHDI ENG

A pressure-resistant and flame-retardant PE hollow wall spiral pipe

ActiveCN224453970UPolymer scienceSpiral wound
This utility model provides a pressure-resistant and flame-retardant PE hollow-wall spiral wound pipe, belonging to the technical field of hollow-wall spiral wound pipes. The pressure-resistant and flame-retardant PE hollow-wall spiral wound pipe provided by this utility model features a reinforcing tube with reinforcing ribs spirally wound on its outer circumference. Pressure-resistant filler is filled into the reinforcing ribs, improving the overall rigidity and pressure resistance of the spiral wound pipe, making it less prone to deformation and damage under external pressure. Simultaneously, a plastic spring is provided between the reinforcing tube and the spiral wound pipe body, providing internal support to the reinforcing tube and enhancing its ring stiffness and axial stiffness. Due to the plastic spring and the spirally wound reinforcing ribs on the outer circumference of the reinforcing tube, stress concentration is reduced, resulting in excellent bending resistance and preventing breakage of the spiral wound pipe. Furthermore, a flame-retardant and heat-insulating layer and a corrosion-resistant layer are provided on the outer circumference of the reinforcing tube, improving the flame retardancy and corrosion resistance of the spiral wound pipe.
Owner:WUHAN SIBODA TECH CO LTD

Masonry Support

The invention relates to an improved masonry support for a cavity wall construction. In particular, the invention provides a masonry support comprising a bracket for affixing the masonry support to an
Owner:JOHN SHILLABEER

Photovoltaic photo-thermal greenhouse and plant growth cycle control system

The utility model relates to a photovoltaic photo-thermal greenhouse and plant growth cycle control system, which comprises a greenhouse and a temperature control system, an angle-adjustable photovoltaic photo-thermal plate is arranged above the greenhouse, a hollow wall body additionally provided with a phase change material is arranged inside the greenhouse, a sliding rail is arranged on the outer side of the greenhouse, the greenhouse is divided into a north greenhouse and a south greenhouse by the wall body, and the temperature control system is connected with the temperature control system. A first fan, a first baffle, a second baffle and a third baffle are arranged at the upper end of the wall body, a second fan, a fourth baffle, a fifth baffle and a sixth baffle are arranged at the lower end of the wall body, the first fan is located among the first baffle, the second baffle and the third baffle, and the second fan is located among the fourth baffle, the fifth baffle and the sixth baffle; a seventh baffle is arranged at the top end of the side, close to the south shed, of the wall. Glass is arranged at the middle end of the side, close to the south shed, of the wall body, the glass and the wall body form a TLambert wall, an upper ventilation opening is formed in the upper end of the TLambert wall, and a lower ventilation opening is formed in the lower end.
Owner:YANTAI UNIV

Fluid transport pipe with high thermal resistance

PCT designated stageWO2026041333A1Supersonic fluid pumpsLighting and heating apparatusFluid transportMechanical engineering
A turbomachine is provided that is configured for using a fluid for cooling and sealing functions conducted by a fluid transport pipe (216) with a hollow wall portion sealed to maintain a vacuum therein for thermally isolating the sealing fluid flowing though the fluid transport pipe (216) from an environment external to the fluid transport pipe (216).
Owner:SIEMENS ENERGY GLOBAL GMBH & CO KG

Positioning tool for corrugated pipe in prefabricated hollow wall production

The utility model relates to prefabricated building accessory technical field, concretely discloses a positioning tool of corrugated pipe in prefabricated hollow wall production, including two support seats, hollow rod is set up between two support seats and is provided with concentric through corrugated pipe setting, the periphery of hollow rod is uniformly provided with a plurality of expansion strips, and both ends of expansion strip are rotatably connected with the stay, the inside of hollow rod is provided with push block, the end of hollow rod is provided with the adjusting assembly that realizes the axial movement of push block, one of two stay of expansion strip is connected with hollow rod, and the other is connected with push block through the strip mouth on the outer wall of hollow rod, the utility model avoids the bending deformation of corrugated pipe in the subsequent grouting and vibrating process under the premise of guaranteeing the effective positioning of corrugated pipe, effectively guarantees the product quality of prefabricated hollow wall prepared.
Owner:方红星

Ash deposition prevention horizontal cooling flue for high-temperature and high-dust-content flue gas

The utility model provides a horizontal cooling flue for high-temperature and high-dust-content flue gas capable of preventing ash deposition, which comprises a flue arranged in the horizontal direction, a heat exchange tube and an ash bucket, an open hole is arranged at the bottom of the flue, the lower part of the open hole is connected with the ash bucket, and the heat exchange tube is arranged in the flue and is axially arranged along the inner wall of the flue; heat exchange membranes are connected to two sides of the outer wall of the heat exchange tube above the high point of the peripheral line of the opening to cover the inner wall of the flue; and the heat exchange tube positioned below the high point of the periphery of the opening hole is a light tube, and a hollow wall is formed below the opening hole of the flue. Compared with the prior art, the horizontal cooling flue capable of preventing ash deposition can be suitable for horizontal flowing of various kinds of high-temperature and high-dust-content flue gas, has a heat recovery function on the high-temperature flue gas, effectively avoids deposition of smoke dust, and is efficient and energy-saving.
Owner:NANJING HUADIAN ENERGY SAVING & ENVIRONMENTAL PROTECTION EQUIP

Prefabricated electronic scale

The utility model provides a preassembled electronic scale, which belongs to the technical field of measurement and comprises a base, an electronic component, a sensor, a scale pan, a widening component and a supporting component. The base is a hollow wall body, and the upper surface of the base is provided with a display window and a connector; the electronic component is arranged in the base and corresponds to the display window in position; the sensor is arranged in the base and is connected with the electronic component; the scale pan passes through the connecting port and is connected with the sensor. The widening assembly is movably connected with the scale pan. The supporting assembly is movably connected with the scale pan. A plurality of electronic elements are integrated in the independent electronic components in advance, the tedious steps of manual one-by-one installation in the assembly line assembly process are reduced, the electronic components are assembled and debugged in advance in the relatively independent modules, the probability of manual operation errors can be effectively reduced, the assembly precision and consistency of products are improved, and the production efficiency is improved. Therefore, the product quality and the production efficiency are improved, and the production cost is reduced.
Owner:YONGKANG CHIMU IND & TRADE CO LTD

A building system for assembling load-bearing walls

This invention proposes a building system for assembling load-bearing walls, integrating prefabricated components to improve efficiency and structural integrity. The system consists of prefabricated columns formed by interlocking flanges and webs into a hollow rectangular profile, with alkali-resistant mesh wrapped at the interlocking points. Outer panels are attached to these columns, forming prefabricated hollow wall units with specific cavities, which serve as permanent wall formwork during on-site assembly. Filling materials selected based on their thermal insulation performance and structural strength are introduced into these cavities, thereby completing the construction of the load-bearing wall.
Owner:SUNMILL LTD

Fabricated high-performance concrete prefabricated laminated hollow wall and production method thereof

The invention discloses an assembly type high-performance concrete prefabricated laminated hollow wall and a production method thereof.The shear wall comprises a first leaf plate and a second leaf plate, a plurality of sets of truss steel bars are fixedly connected between the first leaf plate and the second leaf plate, the first leaf plate is integrally formed in a pouring mode or formed by splicing at least two concrete prefabricated plates, the second leaf plate is integrally formed in a pouring mode, and the truss steel bars are fixedly connected between the first leaf plate and the second leaf plate. A plurality of groups of truss steel bars are pre-embedded and fixed in each concrete prefabricated slab during prefabrication forming, each group of truss steel bars comprises connecting steel bars which extend in a wave shape in the vertical direction, the wave crest parts of the connecting steel bars are pre-embedded and fixed in the concrete prefabricated slabs, and the wave trough parts of the connecting steel bars are pre-embedded and fixed in the leaf plates II; the wave crest part and the wave trough part of the connecting steel bar are further provided with anchoring reinforcing structures. The method has the advantages that the production of the blade plate I is decomposed into the production of the concrete precast slabs with smaller specifications, and only the blade plate II is produced on the steel mold table, so that the dependence on the steel mold table can be effectively reduced, the equipment investment can be reduced, the production efficiency can be improved, and meanwhile, the requirement on the production space of a factory area is also reduced.
Owner:CHANGHE SILICON (HUBEI) CONSTRUCTION TECHNOLOGY CO LTD

Battery module, battery pack and device comprising the same

The present invention discloses a battery module configured to prevent the movement of water from the outside to the inside of the battery module and to allow gas generated inside the battery module to be discharged to the outside. A battery module according to one aspect of the invention comprises: a cell assembly having one or more battery cells; a module case that accommodates the cell assembly in an internal space and includes, on at least one surface, a venting hole defined by a hollow wall extending from an external surface into the internal space; a waterproof sheet located at the end of the wall inside the module case and blocking the entire entrance of the venting hole; and a protective cover that blocks a portion of the exit of the venting hole outside the module case.
Owner:LG ENERGY SOLUTION LTD

Hollow structure wall and construction method thereof

The application discloses a kind of hollow construction wall and its construction method, including hollow wall and vertical embedded in the support column of the hollow wall;The multiple wall bricks of the hollow wall in the same row are evenly spaced, and the two rows of wall bricks adjacent to each other are staggered and stacked, and the support column is arranged with the wall brick staggered and stacked into the coincident place.
Owner:CHINA CONSTR SCI & IND CORP LTD

Tray for conveying battery cells

The invention relates to a tray for conveying battery cells, which adopts a double-layer hollow wall structure for minimizing a left-right gap in a manner of fastening an upper-layer battery cell and a lower-layer battery cell when the tray for conveying the battery cells is loaded in multiple layers. And a rib structure for preventing foreign matters generated when the tray for conveying the battery core is fastened up and down from entering the battery core placing part is adopted, so that the safety, reliability and the like in the carrying process can be improved by preventing the foreign matters from entering and the battery core from being damaged when the secondary battery is transported.
Owner:DONG YANG PHYSICS & CHEM +1

A prefabricated hollow wallboard joint sealing structure

The application discloses a prefabricated hollow wallboard joint sealing structure and relates to the technical field of house building construction. The prefabricated hollow wallboard joint sealing structure comprises two prefabricated hollow wallboard bodies arranged adjacently, two sealing devices are respectively arranged on the two sides of the connecting joint of the two prefabricated hollow wallboard bodies, each group of the sealing devices comprises two first recesses respectively arranged on the connecting ends of the two prefabricated hollow wallboard bodies and a sealing plate detachably arranged on the two first recesses, and the inner side of the sealing plate is provided with a sealing plate. The sealing plate is arranged on the connecting joint of the two prefabricated hollow wallboard bodies. The application can reduce the possibility of water seeping into the connecting joint gap between the two prefabricated hollow wallboard bodies.
Owner:宣城市政建设集团有限公司

Steel wire embedded pipe wall type polyethylene hollow wall winding pipe production equipment and process

The application discloses a steel wire embedding pipe wall type polyethylene hollow wall winding pipe production equipment and a production process thereof. The production equipment comprises a conveying limiting mechanism, a conveying embossing mechanism and a steel wire heating embedding mechanism. The conveying limiting mechanism comprises a conveying assembly line and a limiting roller assembly. The conveying embossing mechanism comprises a seat body, a conveying roller, an embossing roller and a conveying motor. The conveying embossing channel is formed between the conveying roller and the embossing roller and is used for conveying and embossing the hollow pipe. The steel wire heating embedding mechanism comprises a steel wire unwinding disc, a gantry, a lifting driving part, a horizontal moving driving part and a heating embedding module. The steel wire unwinding disc is used for providing the steel wire for the heating embedding module. The heating embedding module is used for embedding the steel wire into the groove of the hollow pipe wall. The application changes the traditional structure and process, embeds the steel wire into the side wall of the hollow pipe, reduces the influence of the steel wire elastic force on the polyethylene and makes the adhesion between two spiral layers more firm.
Owner:GUANGDONG LONGSU PIPE IND CO LTD

Thermal management device for an electrical and / or electronic component of a motor vehicle.

Thermal management system for an electrical and / or electronic component of a motor vehicle. Thermal management system for an electrical and / or electronic component of a motor vehicle comprising: - a hollow wall (31) of which a first face (311) is intended to be disposed near or in contact with at least one component of an electrical or electronic element (2) to be cooled or heated, - a substantially cylindrical channel (32) extending inside the hollow wall (31) in a direction of flow of the heat transfer fluid, the channel (32) being in contact with a given portion of the first face (311), - a turbulator (33) extending in the channel (32) in the direction of flow of the heat transfer fluid, and - a means for circulating the heat transfer fluid in the channel (32), the device being characterized in that a shape of the turbulator (33) varies according to the direction of flow of the heat transfer fluid. Figure for the abridged version: 1
Owner:AMPERE SAS

Bfrp-u sheathed double-layer axial hollow-wall pipe and preparation method thereof

The application relates to the technical field of structural wall pipes for buried drainage, and particularly discloses a BFRP-U armored plastic double-layer axial hollow wall pipe and a preparation method thereof. The pipe comprises an inner layer, an intermediate layer and an outer layer which are combined in sequence from inside to outside; the inner layer is a pure PVC-U layer; the intermediate layer is made of BFRP reinforced PVC-U composite material; the outer layer is a pure PVC-U layer or an anti-aging modified PVC-U layer; the BFRP reinforced PVC-U composite material comprises PVC-U resin, surface-modified short-cut basalt fibers, toughening modifier, nano filler, heat stabilizer, processing aid, lubricant, coupling agent and antioxidant. The hollow wall pipe can be used for buried laying in the fields of municipal drainage, industrial wastewater transportation, urban rainwater and sewage pipe network, farmland water conservancy irrigation and the like, and has the advantages of stable and firm layer interface combination, high overall mechanical property, good corrosion resistance, high long-term creep resistance and high low-temperature impact resistance.
Owner:CHONGQING LINHYDRU DIGITAL TECHNOLOGY CO LTD

Building engineering wall hollowing detection machine

The invention belongs to the technical field of hollowing detection equipment, and discloses a constructional engineering wall hollowing detection machine which comprises a moving box, a vertical frame is fixed to the top of the moving box, a lifting mechanism is arranged on the vertical frame, a lifting frame is arranged on the lifting mechanism, and the lifting mechanism is used for driving the lifting frame to ascend and descend. The lifting frame is provided with a detection mechanism used for conducting hollowing detection on the ground, the vertical wall face and the wall top and drilling holes in the hollowing wall face, the moving box is provided with a moving mechanism used for driving the moving box to move, and the detection mechanism comprises a connecting assembly. According to the invention, the detection mechanism comprises a connecting assembly; the connecting assembly comprises a rotating motor fixed to the lifting frame, a vertical rod fixed to the output end of the rotating motor, a connecting block rotationally installed at the lower end of the vertical rod, an electric rotating table fixed to the lower end of the connecting block, a transverse plate fixed to the rotating end of the electric rotating table and a rotating motor fixed to the vertical rod and driving the connecting block to rotate.
Owner:SHOUXIAN SHOUZHOU CONSTRUCTION ENGINEERING QUALITY INSPECTION CO LTD

Anti-floating device for corrugated pipe in prefabricated hollow wall production

This utility model relates to the field of prefabricated building component technology, specifically disclosing an anti-floating device for corrugated pipes in the production of precast hollow walls. It includes a track frame installed on the base plate of a mold platform, with several movable seats on the track frame. Each movable seat has a sliding mechanism and a locking mechanism. Both ends of the movable seats are connected to arms parallel to the corrugated pipe. The ends of the arms are threaded with downward-pointing adjusting screws, and the lower ends of the adjusting screws are connected to pressure pads. Wheel seats are fixedly connected to the ends of the arms, and one end of the wheel seat is rotatably connected to a rope unloading wheel with a lifting rope wound around it. A locking pin for locking the rope unloading wheel is provided on the wheel seat opposite the rope unloading wheel. This utility model solves the problem of corrugated pipe displacement during concrete pouring or vibration, effectively ensuring the quality of the final product. It not only guarantees the fixing effect of the corrugated pipe but also expands its application range.
Owner:方红星

PVC axial hollow wall pipe chamfering device

The utility model relates to hollow wall pipe technical field, a PVC axial hollow wall pipe chamfering device, including the bottom plate, still include: fixed in the bottom plate top both sides' support frame, both sides of two support frames opposite between all fixedly connected with the support plate, the top between two support plates fixedly connected with the locating frame, the top fixedly connected with the hydraulic rod of locating frame inner chamber, the top between two support frames is provided with the pipeline of setting up, fixed in the annular frame of bottom plate one side. First through motor fixed in L type frame one side, then cooperate with the distance of screw rod and the distance between the disc can make the blade and pipeline slow regulation, then drive motor etc. to realize the inner and outer end of automatic to pipeline chamfering work, and cooperate with the setting of screw rod and torsion block, then can make the blade in locating plate one side overturn, thereby can adjust according to different chamfering angle need.
Owner:XINJIANG TONGQING PLASTIC IND CO LTD

Trapezoidal truss hollow wall panel

1. Name of the product in this design: Trapezoidal Truss Hollow Wall Panel. 2. Purpose of this design: For use as a decorative surface layer for prestressed hollow wall panels on the exterior of buildings. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.
Owner:JIANGSU ZHIJU INTELLIGENT CONSTR TECH CO LTD

A heavy truck bottom energy storage cabin truss composite bearing structure

The application discloses a heavy truck bottom energy storage cabin truss composite bearing structure, which comprises an upper frame, a lower frame, a plurality of isolation plate pieces, a pair of moving devices and a plurality of locking devices; the upper frame and the lower frame are fixedly connected and form a placing area in the interior, and a plurality of battery packs are placed in the placing area; the isolation plate pieces are placed in the placing area and are slidably connected to the lower frame to separate the battery packs; the upper frame and the lower frame each comprise a plurality of trusses which are fixedly connected at the head and tail to form a hollow wall in the interior; a plurality of longitudinal and transverse intersecting bottom bars are fixedly connected to the bottom of the lower frame to support the battery packs; the middle portions of the two sides of the isolation plate pieces extend into the interior of the wall of the lower frame, a pair of moving devices are arranged in the interior of the walls on the opposite sides of the lower frame and are connected with the isolation plate pieces to drive the isolation plate pieces to move; the interior of each wall of the lower frame is provided with a locking device which is slidably connected to the top side of the interior of the wall of the lower frame and is used for locking the upper frame and the lower frame.
Owner:NAT ENG RES CENT OF ADVANCED ENE STORAGE MATS

Household appliance buffering top lining

The utility model relates to a household appliance buffering top lining, which comprises a bottom plate and a hollow wall body fixed on the peripheral side of the bottom plate and formed by folding, the wall body comprises a first buffering wall, a second buffering wall, a third buffering wall and a fourth buffering wall, and a connecting piece is used for connecting two adjacent buffering walls; buffer pieces are arranged on the bottom plate and in the second buffer wall, the third buffer wall and the fourth buffer wall; a fixed rod is detachably connected in a space formed between the first buffer wall and the bottom plate; rectangular grooves are formed in the connecting position of the first buffer wall and the bottom plate at intervals, limiting pieces are arranged in the rectangular grooves, and the limiting pieces are connected with the first buffer wall and the bottom plate to form a hollow square space so as to limit position movement of the fixing rod. The buffering top lining of the household appliance meets the requirements of environmental protection, high temperature and high humidity, and is lower in cost, simpler in production process, convenient to package, transport and disassemble on the premise that the protection effect is not sacrificed.
Owner:BEIJING FENGDE LANZHI PACKAGING TECH CO LTD

Hollow wall fastener

Improvements in a hollow wall fastener that uses a cylindrical outer casing with an outer lip to distribute vertical load stress to the wall more efficiently by reducing high-load stress points and centering mass nearer the wall. The fastener uses arms that deploy and install in a reaching and spreading motion that allows the center of tension and load to remain closer to the wall. The housing uses channeled grooves that align the arms with the cylindrical outer casing. The fastener is adjustable prior to installation to set the thickness of the wall for an optimal grip. The arms secure the fastener by direct pressure applied from opposite directions along the z-axis, perpendicular to the interior wall. The arms can be retracted back into the cylindrical outer housing for removal of the fastener from the wall, ceiling, or floor.
Owner:CROW GREG M

A pre-embedded inflatable bag cast-in-place reinforced concrete hollow wall and a construction process thereof

This disclosure relates to the field of construction, and more particularly to a pre-embedded inflatable bladder cast-in-place reinforced concrete hollow wall and its construction process. The hollow wall includes a wall formwork, a reinforcing mesh, an inflatable bladder, horizontal tie bars, a second reinforcing mesh, another wall formwork, and a concrete cover. The horizontal tie bars are configured to connect with the first and second reinforcing meshes. The concrete cover is poured to fill the area between the first and second wall formworks. The inflatable bladder has a bonding area and multiple air chambers. The multiple air chambers are connected by the bonding area to form a whole. Multiple vertical through holes are formed within the bonding area. The horizontal tie bars pass through the through holes. The inflatable bladder also includes multiple positioning rods. The positioning rods protrude vertically from the plane of the inflatable bladder. The first end of the positioning rod is connected to the center of the air chamber, and the second end of the positioning rod can abut against the first or second wall formwork. The positioning rods have fixing holes. The positioning rods are tied and fixed to the first or second reinforcing mesh through the fixing holes.
Owner:JIANGSU DAHAN CONSTR INDAL GROUP

Hollow wallboard mounting device

The utility model relates to the field of building construction, in particular to a hollow wallboard mounting device which comprises a cart, two bearing seats A are arranged on a flat plate of the cart, a rotating plate is rotatably connected between the bearing seats A, a supporting plate is vertically fixed on the rotating plate, and a plurality of electric suckers are arranged on the supporting plate. A bending rod is fixed to one side of the rotating plate, the lower end of the bending rod is rotationally connected with a knuckle bearing through a pin shaft, the knuckle bearing is fixed to the end of a piston rod of an air cylinder, and the air cylinder is installed between the two bearing seats B in a swinging mode. According to the installation device, manual supporting is omitted in the installation process of the hollow wallboard, the installation position can be conveniently adjusted in the installation process, the labor intensity of workers is relieved, the installation efficiency is improved, meanwhile, the hollow wallboard installed through the installation device does not incline, the perpendicularity is ensured, and the installation efficiency is improved. And the mounting quality is ensured.
Owner:JINAN URBAN CONSTR GRP CONSTR ENG CO LTD +2

Forming method of magnesium alloy double-layer wallboard

The invention discloses a forming method of a magnesium alloy double-layer wallboard, belongs to the technical field of hollow wallboard forming, and is used for solving at least one of the problems of coarse microstructure grains in a hollow magnesium alloy component, reduced mechanical property, lengthy forming process flow and lower forming efficiency caused by secondary charging forming of a wallboard in the prior art. According to the forming method, the closed structural part is placed in the lower die body of the forming die; the closed structural part, the upper die and the lower die are subjected to heating and heat preservation, and the upper die and the lower die are closed to bend the closed structural part; the bent closed structural part is subjected to diffusion connection, so that the diffusion connection area of the upper skin unfolding material and the diffusion connection area of the lower skin unfolding material are subjected to diffusion connection, and a diffusion connection structural part is obtained; and gas is introduced into the non-diffusion connection area of the upper skin unfolding material and the non-diffusion connection area of the lower skin unfolding material for gas expansion superplastic forming, and a runner of the magnesium alloy double-layer wallboard is formed. The method can be used for forming the magnesium alloy double-layer hollow wallboard.
Owner:BEIJING XINGHANG MECHANICAL ELECTRICAL EQUIP CO LTD

Energy-saving wood chip treatment device

The utility model discloses an energy-saving wood chip treatment device. The energy-saving wood chip treatment device comprises a boiler, a stirrer and an air blower. The boiler combustion chamber is provided with a smoke exhaust pipe with an axial flow fan; the wall thickness of the stirrer is hollow to form a first chamber (with a purification exhaust pipe) and a second chamber (with ventilated inner walls), the two chambers are connected with a smoke exhaust pipe through an electromagnetic valve pipeline, and a stirring shaft is provided with adaptive stirring blades; an air duct of the blower is connected with the stirring chamber and a boiler feed port through a discharge pipeline. High-temperature flue gas is switched and introduced into the double cavities through the smoke exhaust pipe; when the high-temperature flue gas is introduced into the first cavity, the hollow wall is used for conducting heat and drying wood chips; when the high-temperature flue gas is introduced into the second cavity, constant-temperature and flame-proof effects are realized through the ventilation structure; and the dried wood chips are conveyed to the combustion chamber for combustion by the air blower. According to the wood chip treatment device, the problems that wet wood chips cannot be directly incinerated and the manual feeding efficiency is low can be solved; automatic drying-feeding integration is achieved, and pollution is reduced through flue gas purification; and boiler flue gas waste heat is recycled, and fuel consumption and labor cost are remarkably reduced.
Owner:HEPU COUNTY FUHAI WOOD IND CO LTD

Stemming material for blasting and manufacturing method thereof

PCT designated stageWO2025264006A1BlastingTunnelsAbrasive blastingGlycerol
The present invention relates to a stemming material for blasting and a manufacturing method thereof. The stemming material is a mixture of crushed shell particles and an aqueous glycerin solution, has excellent sealing properties with respect to blasting explosion pressure, minimizes blasting vibration and noise because oyster shells increase friction with a blasting hollow wall and thereby improve the stemming effect, shortens the duration of blasting work by improving blasting efficiency, greatly reduces the cost of blasting work, improves the safety of blasting work, can secure economic feasibility by effectively utilizing shell waste that is generated in large quantities, and can solve environmental problems caused by the shell waste.
Owner:HANWHA CORP