111results about How to "Increase load strength" patented technology

A sandwich composite panel (2) provides a load bearing structural member as well as noise protection, especially for a helicopter fuselage cell or cabin. The panel (2) includes an inner honey-comb core (6) made up of hollow cell bodies (4) extending trans-versely and sandwiched between first and second cover skins (8, 10) of fiber composite material. In order to achieve a low weight, a simple manufacturing, and good noise absorption, at least one of the cover skins (8) adapted to face the main source of noise (H) is made up of an open mesh fiber composite net (12) and a flexible cover film (16) applied on the outer surface of this fiber composite net (12). The net (12) has a smaller mesh size than the inner cross-sectional size of the hollow cell bodies (4).

The invention discloses a carbon-based composite material for arsenic and cadmium polluted soil remediation and application of the composite material. The carbon-based composite material disclosed by the invention is prepared by the steps: taking crop straws as raw materials, and charring to prepare charcoal; mixing with an iron salt solution according to a certain solid-liquid ratio, regulating the pH value of the solution in the process so as to realize coprecipitation of the two materials; performing pyrolysis, thereby obtaining the carbon-based composite material. The carbon-based composite material prepared in the invention is applied to arsenic and cadmium compound polluted soil, and methods such as turning over, watering and the like are combined, so that the content of arsenic and cadmium in an effective state can be obviously reduced; therefore, the arsenic and cadmium in the soil can be transferred to a direction with low biotoxicity and migration, the physicochemical properties of the soil can be improved to a certain degree, and the composite material is suitable to be applied to multiple types of soil. The arsenic and cadmium ions in a water body can be effectively removed, the preparation process is simple in operating steps, and the material is wide in source, low in production cost and environment-friendly.

A collapsible shipping container has a corner post located at each corner of a base frame. A respective stile of an end cover frame, which may support at least one door, is pivotally mounted on the base frame adjacent each corner post. Respective lifting members on each corner post and stile have curved abutment faces which engage when the stile is in the erected position, and a latch member releasably locks the stile in the erected position. The or each end cover frame may be provided with a spring—or winch system to assist in moving the end cover frame to the erected position.

The invention discloses a continuous carbon fiber reinforced crucible preform and a preparation method thereof. The preform is molded from basic unit layers and continuous fiber reinforced layers through needle punching; the bottom of a crucible and a connection area of the side and the bottom of the crucible are respectively reinforced by using the continuous fiber winding and laying technology, so the content of continuous fibers connected in an integral structure is effectively increased, strength needed during high load and high swelling stress conditions is guaranteed, cracking of the crucible or disconnection of the connection area of the side and the bottom of the crucible is prevented, and excellent shape stability can be maintained. Thus, the preform has excellent mechanical properties and a stable structure; after carbon / carbon composition, the crucible has good resistance to expansion, good structural stability, high thermal conduction efficiency and a long service life under a high load condition and can meet usage requirements of large-size crystalline silicon furnace crucibles.

A pultrusion process comprises steps of: pulling a matrix of continuous reinforcement fibers through a wet-out chamber and forming die while injecting thermoplastic resin (e.g. thermoplastic polyurethane) into the wet-out chamber, and providing secondary stations that remove, reform, and / or add material downstream of the forming die using heat and pressure to form a final beam shape with integrally-formed features thereon. The reinforcement matrix is optimally glass fiber, but can include different types of reinforcements, including strands, bundles, mats, weavings, rods, and other reinforcements and combinations of reinforcements, each of which can be strategically located in the beam profile. The final beam includes intermittent or continuous specialized features integrated into the beam along its length, allowing reduction of material waste, reduced / minimized later assembly, and reduced total number of parts.

The invention relates to the technical field of composite artificial boards and discloses fireproof marine-grade plywood. The fireproof marine-grade plywood comprises a flame-retardant veneer, high-strength glass fiber meshes, flame-retardant solid wood core veneers and a flame-retardant bottom board, wherein the flame-retardant veneer is arranged on the uppermost layer, the flame-retardant bottom board is arranged on the bottommost layer, and one layer of high-strength glass fiber mesh, the three layers of flame-retardant solid wood core veneers and one layer of high-strength glass fiber mesh are sequentially arranged between the flame-retardant veneer and the flame-retardant bottom board from top to bottom; the layers are bonded through modified macromolecular WBP flame-retardant and waterproof glue. The fireproof marine-grade plywood has the functions of being resistant to fire, inflaming, water, moisture, insects and ants and absorbing sounds and shock, saves the energy, protects the environment and is high in strength.

In a method to seal / lock a strap (44) including a metal strap (44d) which is fitted at least in the zone of seal with a protective layer (44c), the packing strap is laid in the form of a loop around the package and is held, in particular, clamped, in place before and / or during production of the seal. The seal is implemented on the packing strap (44) by resistance welding and the protective layer (44c) of the packing strap (44) shall be pierced before and / or during production of the seal.

A method of forming a torque-transmitting coupling (193) includes forming at least one fitting (192) having a tube conforming area (200). The forming area (200) includes a material overflow groove (194) and multiple flat surfaces (202). The forming area (200) has an associated tube arc length that is approximately equal in length to a formed area length of the flat surfaces (202) with the elongated overflow groove (194). An elongated tube (190) is procured. The elongated tube (190) is formed onto the tube conforming area (200) to form the torque-transmitting coupling (193).

The strength of the whole OLED is increased by proposing a new method of fixing OLED panels. To address the problem, an OLED element is formed on a substrate, and a sealing substrate of a structure by which the substrate is sealed is fixed to a lower metallic frame via an elastic sheet. Silicon resin is preferably used as the sheet, and use of a sheet having a heat diffusion function based on radiation is more desirable.

The invention discloses a 3D (three-dimensional) printing hollow truss floor slab and a construction method thereof. The 3D printing hollow truss floor slab comprises a plurality of prefabricated floor slab units and a concrete laminated layer, the prefabricated floor slab units are provided with hollow truss structures, reinforcing cavities are formed at two ends of each truss structure and filled with concrete, and the concrete laminated layer is arranged at the tops of the prefabricated floor slab units. A truss system is applied to a floor slab system and can be integrally printed by a 3D printer, the performance of a 3D printing material is brought into full play, stress is more reasonable, the hollow truss floor slabs are light in weight, the used material is more green and environmentally friendly, the floor slabs are high in automation in the forming process and can be formed without any formworks, technology is simple, field operation is less, a large quantity of manpower and materials are saved, and building rubbishes are avoided in the production process.

A construction member includes a composite material offering strength and functionality. Embodiments of the present invention include a thermoplastic composite for use in applications such as decking, exterior siding, seating and furniture. In one embodiment, a structural member includes a glass-reinforced PVC core surrounded by a thermoplastic layer that further includes a thermoplastic with elastomer thermofoamed layer as a exterior layer. All three components can be extruded and bond together to form a composite material that offers appropriate structural strength with resistance to heating from sunlight.

The movable calcium sulfate floor block includes one cuboid base with calcium sulfate as main material, and upper and lower facing layers of metal material and located to the base. Compared with available steel floor block, the movable calcium sulfate floor block of the present invention has the advantages of facile material, environment friendship, easy machining, less deformation, high bearing capacity and high sound isolating and fireproof effect.

Solar battery array lighting equipment used to imitate spatial lighting environment is characterized in that: (1) adopting a tubular shape continuous xenon lamp manufactured with high-quality doped silica tube with high load intensity, high radiation efficiency and radiation close to solar surface color temperature as light source and a plurality of tubular shape continuous xenon lamps arranged in light array; (2) adopting a power supply module with AC three-phase balance direct rectifier filtering, large power semiconductor device chopping wave and pulse duration modulation to supply the tubular shaped continuous xenon lamp with power. The invention can realize high load intensity, high radiation effect, radiation close to solar surface color temperature, large area, high brightness, even lighting, with high stability, reliability and security.

The invention discloses a treatment method for microcystin in tap water. Supported TiO2 / FeOOH serves as a catalyst for catalyzing an ozonation reaction to remove microcystin in tap water. According to the treatment method for microcystin in tap water, supported TiO2 / FeOOH serves as the catalyst for catalyzing the ozonation reaction of tap water, microcystin in tap water can be efficiently removed, the harm of microcystin in tap water to human health can be eliminated, and the safety of tap water can be guaranteed.

A stackable wire core assembly for a bedding foundation which may be nestably stacked with numerous other such assemblies for transportation, thereby avoiding the need to compress and tie the assembly for shipping. The wire core assembly includes corrugated formed support wires having inverted U-shaped channels formed at the bottom of the corrugated formed support wires adapted to be wrapped over and secured to slats of a wooden base frame.

A stackable wire core assembly for a bedding foundation which may be nestably stacked with numerous other such assemblies for transportation, thereby avoiding the need to compress and tie the assembly for shipping. The wire core assembly includes corrugated formed support wires having inverted U-shaped channels formed at the bottom of the corrugated formed support wires adapted to be wrapped over and secured to slats of a wooden base frame.

The invention discloses a method for mixing soil stabilizer stabilized soil, which comprises completely stirring quicklime and pure soil, and curing to serve as lime soil; diluting the lime soil with the raw slurry of a soil stabilizer to obtain a solution, and completely stirring; adding cement into the diluted soil stabilizer solution, and completely stirring; and compacting the soil stabilizer stabilized soil. By using quicklime and adding cement before compacting the soil stabilizer stabilized soil, the inventive method for mixing the soil stabilizer stabilized soil gives full play to the performance of the soil stabilizer, improves the load strength and water resistance of a soil stabilizer stabilized soil layer, has simple technology, and saves mechanical cost.

The invention relates to an amphibious individual soldier carrying backpack. The amphibious individual soldier carrying backpack comprises a main backpack, an auxiliary backpack, a folding air bag and a fixing device. The main backpack comprises a main backpack body and a main backpack cover. The folding air bag is of an annular structure. The fixing device comprises a cushion plate, short-side fastening belts sewn and fixed to the front side and the rear side of the cushion plate in the width direction, and long-side fastening belts sewn and fixed to the left end and the right end of the cushion plate in the length direction. A rescue and camping dual-purpose air bag is provided with multiple hanging rings or hanging holes. A high-pressure air cylinder for inflating an inflatable bag body through a one-way air tap is placed in an auxiliary side backpack body. The amphibious individual soldier carrying backpack achieves the amphibious carrying functions that the backpack can be dragged in a floating mode on the waterside and can be carried on the back by an individual soldier or lifted by two soldiers on land, achieves the protection functions of waterproofness, dampproofness and the like, and meets the requirements of infantries in the army of China for carrying and protection of arms and ammunition in the swimming-in-battle-gear and beach-head processes.

The invention discloses a method for treating nickel-containing wastewater by using a composite adsorbent. The method comprises the following steps: mixing the nickel-containing wastewater with the composite adsorbent, carrying out oscillating at room temperature, carrying out solid-liquid separation to obtain preliminarily-treated wastewater, adjusting the pH value of the preliminarily-treated wastewater to 4-5, adding sodium hypochlorite, carrying out a stirring reaction, adding the composite adsorbent, conducting oscillating at room temperature, and carrying out solid-liquid separation to obtain secondarily-treated wastewater; adjusting the pH value of the secondarily-treated wastewater to 10.5-11.5, performing standing for precipitation, taking supernatant liquid, adding polyaluminum chloride, conducting stirring, adding polyacrylamide, performing stirring and standing, and carrying out solid-liquid separation to obtain tertiarily-treated wastewater; and mixing the tertiarily-treated wastewater with the composite adsorbent, conducting oscillating at room temperature, and carrying out solid-liquid separation, wherein the composite adsorbent is prepared by uniformly mixing modified sepiolite, acid-modified fly ash and cross-linked chitosan. The method for treating the nickel-containing wastewater by using the composite adsorbent provided by the invention is simple in process,has a better treatment effect on various forms of nickel in a water body, and is high in nickel removal rate.

The invention discloses a 3D building printing head. The 3D building printing head comprises a hollow printing head body, a feeding device and a nozzle which is mounted at the bottom of the printing head body and is in butt joint with a hollow cavity of the printing head body. At least two sets of bearing assemblies arranged in an up-and-down staggered manner are mounted on the outer wall of the printing head body in a sleeving manner. The outer wall of each bearing assembly is correspondingly connected with a printing head connecting frame used for being connected with printing equipment. Each printing head connecting frame and the other printing head connecting frame adjacent to the printing head connecting frame can relatively rotate with the printing head body as the axis, and the intersection angle of the two printing head connecting frames can be changed. Meanwhile, the invention provides a mobile 3D building printing device. The 3D building printing head and the mobile 3D building printing device can be conveniently moved to a construction site for directly printing a 3D building, and movement, assembly and debugging are convenient. The loading force and stability of combined mechanical arms are increased, the feed amount is larger, the movement speed is high, the repeated locating precision is high, and the printing speed and printing quality are improved; and the mechanical arms can be longer, and larger buildings can be printed out.

The invention relates to a photocatalyst for efficiently degrading organic pollutants and a preparation method thereof. According to the photocatalyst, a silicon-aluminum composite oxide is used as acarrier, and ferric oxide and titanium dioxide are used as effective components; wherein the effective components are immobilized on the carrier. The TiO2 and Fe2O3 in the catalyst are uniformly distributed, and the immobilized TiO2 is not easy to hydrate and disperse; Fe<3+> in the system can be reduced into Fe<2+> in time, so that the generation of iron sludge is reduced, and the utilization rate of iron ions is increased. The catalyst particles are not easy to crack in water, so that a Fenton-photocatalysis synergistic system has practical application value. Compared with a traditional Fenton and photocatalysis advanced oxidation system, the catalyst has the advantage that the catalytic oxidation efficiency is greatly improved.

A bicycle wheel rim design with high safety margin and optimized strength-to-weight is described. The rim provides a tire bead supporting platform which defines a circumferential bead seat with minimum bead seat diameter equal to the standard tire bead diameter defined for a particular size of tire. Each tire bead seat defined along the rim circumference is comprised by a pair of circumferential ridges. The circumferential ridges comprise the external sidewalls of the rim and do not include tire bead hook features, and are of optimized sidewall thickness to add load strength and lateral stiffness, and resist crushing from impact. The interior ridges are increased diameter towards the medial plane of the rim to a value greater than the specified tire bead diameter. Given this geometry, the left lateral and right lateral of each tire bead is safely constrained within the defined bead seats under a wide variety of uses.

The invention relates to a portable industrial robot based on multi-dimensional sensor real-time data feedback fusion. The portable industrial robot comprises an industrial robot and a multi-dimensional sensor real-time feedback control system. The portable industrial robot has the beneficial effects of being based on multi-dimensional sensor real-time feedback and data fusion, the structure and the motion error compensation are completed, and accurate control which does not depend on the structure precision of the industrial robot is achieved; an industrial robot and a sensor real-time feedback control system generate accurate real-time control data through the real-time feedback data and data fusion technology to form a whole set of system, various working conditions can be realized through the single robot, the working conditions of the industrial robot can be adjusted in real time, and the working condition precision is ensured.

The invention discloses a rotary tillage, ridging and mulching combined operation machine for slope cropland. The operation machine includes a rotary tillage machine; a gear box assembly and a hangingrack assembly are arranged on a frame of the rotary tillage machine; the power output end of the gear box assembly drives a cutter-shaft assembly of the rotary tillage machine; a ridging device is arranged on the rear end of the rotary tillage machine and provided with multiple sets of ridging plates; the operation machine also includes a cantilever, a diagonal draw bar and a mulching frame; thecantilever is arranged on the rotary tillage machine and extends to the rear part of the rotary tillage machine; the two ends of the diagonal draw bar are respectively in hinged joint with the hangingrack assembly and the cantilever; the front and rear ends of the mulching frame are rotatably connected to the cantilever; film rollers are arranged on the front end of the mulching frame; hole-sowing devices, film-pressing wheels and soil-covering disc shovels are successively arranged on the rear end of the mulching frame; and the film rollers, the film-pressing wheels and the soil-covering disc shovels are in front and back correspondence with each set of the ridging plates. The operation machine has a profile modeling function; and the mulching frame can be automatically adjusted according to the ground surface, so that operational requirements of cultivated land with different types can be met.

The invention provides a high-strength splicing fireproof exhaust gas flue. fireproof plates are connected, spliced and encircled into a pipeline structure, supporting rings are respectively fixed at a certain interval at the inner side and / or the outer side of the exhaust gas flue from top to bottom in the direction of a cross section, and reinforcing ribs, bearing supporting structures and the like are reasonably designed. And therefore, the standardized mass production can be realized conveniently, the quality of the gas flue is ensured fully, the weight of the gas flue is lowered, and thetransportation and the mounting become convenient. The invention effectively solves the problems of gas intrusion and odor tainting by arranging a siphon negative-pressure check valve at the air inlet of the gas flue and fully ensures the mounting firmness degree and ensures the effective closing function of a valve plate to a gas opening by further adopting an internal fixed fireproof valve.