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.

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.