32results about How to "Does not add significant weight" patented technology

A method is provided for forming a composite article to have a primary composite structure and an integral secondary composite structure that extends out of a plane defined by the primary composite structure. The method includes laying-up first plies to construct the primary composite structure. The first plies contain continuous reinforcement material and extend from a first zone that will define the primary composite structure into a second zone that will define the secondary composite structure. During laying-up of the first plies, additional plies are interleaved with the first plies within the second zone but not the first zone. The additional plies originate within a build-up zone between the first and second zones and extend therefrom into the second zone.; After interleaving the plies, the build-up zone is deformed to orient the second zone and form the secondary composite structure that extends out of the plane defined by the continuous reinforcement material of the first plies.

The invention belongs to the technical field of agriculture product processing, and particularly relates to a flat plate type vacuum pulsation drying machine. The flat plate type vacuum pulsation drying machine comprises a machine body, a control unit, a material drying unit and a pulsation vacuum unit, wherein the material drying unit is provided with multiple layers of material shelves. According to the flat plate type vacuum pulsation drying machine disclosed by the invention, a heating part adopts special electric heating plates, so that the processing is simple and convenient, the cost is low, the heating temperature is uniform, and the manufacturing cost, the using cost and the maintaining cost of the drying machine are greatly reduced; through a hierarchical control mode, corresponding heating plates can be opened according to actual processing amount, so that the energy consumption is reduced; meanwhile, soft material trays are adopted, so that the contact conditions between the material trays and the heating plates are remarkably improved, the quality of dried products can be effectively ensured, and the problem that the soft material trays are inconvenient to move is overcome by using a dedicated material tray shovel to assemble and disassemble the material trays; in addition, the flat plate type vacuum pulsation drying machine belongs to static drying, the breakage of materials cannot be caused; the processing and loading capacity of equipment can be effectively increased by virtue of a multi-layer structure.

The invention discloses a crushing device for excavating stonework in fragmented rock formations and installation and use methods thereof. The fragmentation device includes a fragmentation drilling device, a hydraulic energy supply device and a walking system. The fragmentation drilling device includes Vertical drilling head, expander, positioning oil cylinder, fragmentation vibrator, vertical adjustment cylinder, fragmentation oil pump; hydraulic energy supply device, including fragmentation telescopic arm positioning, fragmentation telescopic arm support frame, fragmentation power supply Oil system, oil supply pipe; walking system, including generator set, operating room, walking crawler, walking system support frame, power line and control line. purpose of production efficiency. At present, the technical comparison and analysis of the stonework excavation in the fractured rock formation and the analysis of the shortcomings have found that the traditional drilling and blasting excavation process must use a large amount of pyrotechnic materials, and the safety factor is low.

A cold-formed thin-walled steel-structure house outer wall structure system comprises beams and wall frame pillars, and the beams and the wall frame pillars are in cooperation with one another. The cold-formed thin-walled steel-structure house outer wall structure system is characterized in that the wall frame pillars comprise lower layer pillars (8) and upper layer pillars (18); the beams comprise floor beams (9), a top beam (11) and a bottom beam (17); the tops of the two adjacent lower layer pillars (8) are fixedly embedded in the top beam (11); pulling resistant pieces (13) are connected between the inner walls of the lower layer pillars (8) and the top beam (11), the floor beams (9) are fixed above the top beam (11), and the bottom beam (17) is fixed above the floor beams (9); the bottoms of the two adjacent upper layer pillars (18) are fixedly embedded in the bottom beam (17); pulling resistant pieces (13) are connected between the inner walls of the upper layer pillars (18) and the bottom beam (17); and a truss type strengthening part is installed between the top beam (11) and the bottom beam (17), and the truss type strengthening part is fixed to the top beam (11) and the bottom beam (17) through spacers (16) and nuts (19) after pulling resistant anchor bolts (14) penetrate through bolt holes (15), the top beam (11), steel sleeves (4) and the bottom beam (17).

A cold-bent thin-walled steel-structured housing interior wall structural system comprises beams and wall frame columns mating with the beams, and is characterized in that each wall frame column includes a lower column (10) and an upper column (11), and the beams include C-shaped steel floor beams (12), as well as a U-shaped steel top beam (13) and a U-shaped steel bottom beam (14) which are used for connecting the two adjacent wall frame columns; anti-pull parts (16), floor structural boards (15), connectors and H-beam stack weld-combined stiffeners are also included in the system; the U-shaped steel top beam (13) is fixed to the two adjacent lower columns (10); the U-shaped steel bottom beam (14) is fixed to the two adjacent upper columns (11); the H-beam stack weld-combined stiffeners are mounted between the U-shaped steel top beam (13) and the floor structural boards (15) and are fixed to them through washers (19) and nuts (20) via anti-pull anchor bolts (18) which are passed through the anti-pull parts (16), the U-shaped steel top beam (13), the H-beam stack weld-combined stiffeners, the floor structural boards (15) and the U-shaped steel bottom beam (14).

The invention discloses an assembled fiber concrete composite bridge deck structure and a construction method thereof. The composite bridge deck structure comprises a steel bridge deck layer, an assembled fiber concrete layer is covered above the steel bridge deck layer, and the assembled fiber concrete layer The main body is a cast-in-place fiber concrete layer, in which a number of prefabricated fiber concrete slabs are embedded. Around the prefabricated fiber concrete slabs, there are tongue-and-groove joints occluded in the cast-in-place fiber concrete layer, and steel bars are also provided. The construction method of the present invention comprises the following steps: first make the steel bridge deck layer, then make the prefabricated fiber concrete slab and lay it; or prefabricate the steel bridge deck block and the fiber concrete slab first, and then erect the assembled steel girder; The fiber-reinforced concrete layer is poured, the surface is treated, and the construction is finally completed. The combined deck structure of the invention can increase the ultimate tensile strength of the concrete slab, effectively prevent cracks in the pavement layer, has good durability, good fatigue resistance, and the construction process is simple and efficient.

The invention belongs to the field of HCNG engine application, and particularly relates to a method and system capable of using waste heat for efficiently and precisely supplying hydrogen to an HCNG engine power system. The system comprises a medium-high temperature solid metal hydride hydrogen storage reactor, a low-temperature solid metal hydride hydrogen storage reactor, a fuel mixing cavity, and an SI engine. The medium-high temperature solid metal hydride hydrogen storage reactor and the low-temperature solid metal hydride hydrogen storage reactor can achieve efficient releasing of hydrogen through waste heat of the HCNG engine, meanwhile, a dual-hydrogen source can be precisely regulated to provide needed mixed hydrogen for a natural gas internal combustion engine, and stable hydrogen supply and mixed hydrogen combustion are achieved. According to the system, the waste heat of the HCNG engine is used for driving the solid-state dual-hydrogen source system to achieve efficient, precise and stable hydrogen supply, the comprehensive heat efficiency of the natural gas engine can be improved, the pollutant emission amount of the natural gas engine can be effectively reduced, and the clean and efficient use of the natural gas can be achieved.

The invention discloses an interlayer reinforcement component of a cold-bent thin-wall type steel house. The interlayer reinforcement component is characterized by being of a truss type structure and comprising four upright steel bushings (4) with rectangular projections, and hollow supports (5) which are fixed at two ends of the steel bushings (4) and are coaxial with the steel bushings (4), wherein horizontal transverse steel bars (6) or horizontal longitudinal steel bars (7) are welded between every two adjacent hollow supports (5); oblique steel bars (1) with equal lengths are welded on the hollow supports (5) at four corners of each of front and rear side walls formed by the horizontal transverse steel bars (6) and the steel bushings (4) along the diagonal direction; the far end of each oblique steel bar (1) is welded on a perforated steel plate (2); reinforcement hoops (3) are welded alternately on the steel bushings (4). The reinforcement component is applicable to the cold-bent thin-wall type steel house which is of a multilayer house beam column structure; the force transmission path is direct and reliable; the lateral resistant ability and the capability of bearing the vertical load action of the whole structure can be obviously improved.

The invention provides a luggage box body structure and a manufacturing method thereof, wherein the luggage box body structure is a stereoscopic box body being made from a woven thermoplastic composite material. The box body includes four side plates, a bottom plate and four arc-angle end parts, wherein a sealed arc-shaped gap is formed at an adjacent connection position of each arc-angle end part and the bottom plate. Any two adjacent connection side plates are each integratedly extended to form a first laminated part and a second laminated part, wherein an integrated connection structure being free of notch is formed between the first laminated part and the second laminated part. The arc-angle end parts of the box body are folded and are attached to the first laminated part and a second laminated part and are arranged on an inner surface of one side surface to form an integratedly connected and laminated angle end structure. By means of the folding method, the plate material, of which the angle ends are not notched, are folded and are processed to form a stereoscopic concave box body structure, thereby achieving the object of increasing the strength of the angle end parts of the box body without increasing of the whole weight of the luggage box.

The invention discloses a method for improving the performance of a sheet friction-stir welding head, relates to a friction-stir welding method, and aims to solve the problems of difficult tooling, low joint bearing capability and the like in the conventional sheet friction-stir welding process. The method provided by the invention comprises the following steps: step 1, preparing butt welding plates; step 2, preparing auxiliary plates; step 3, determining the size of a stirring head; step 4, performing assembly and fixing before welding, wherein the milling surface of the first butt welding plate faces down and the milling surface of the second butt welding plate faces up, or the milling surfaces of both the first and second butt welding plates face down, the first and second butt welding plates are butted with each other, and the first and second auxiliary plates are respectively placed on the milling surfaces of the first and second butt welding plates; step 5, performing welding. The method is applied to sheet friction-stir welding.