11results about How to "Low intensity" patented technology

The utility model belongs to the technical field of ALC (autoclaved lightweight concrete) boards, and discloses an autoclaved lightweight aerated concrete board which comprises an ALC sandwich board, a fabric reinforced high-ductility concrete surface layer and a high-ductility concrete surface layer, the ALC sandwich panel is formed by pouring autoclaved lightweight aerated concrete, the fabric reinforced high-ductility concrete surface layer is arranged on one side of the ALC sandwich panel, and the high-ductility concrete surface layer is arranged on the other side of the ALC sandwich panel; the fabric reinforced high-ductility concrete surface layer comprises a first high-ductility concrete layer, a fiber fabric grid layer and a second high-ductility concrete layer which are sequentially arranged in a layered mode. The composite plate has the advantages of light self weight, high strength, simple manufacturing process and low manufacturing cost, and can meet the requirements on bending resistance, crack resistance and joint strength of the plate under various use conditions.

The utility model relates to the technical field of bamboo quality composite material, provide a kind of board.The board includes at least one substrate layer, substrate layer includes at least two wood layers and at least one bamboo block layer, glue layer is equipped between wood layer and bamboo block layer, bamboo block layer is stacked along first direction with wood layer arrangement, and outermost layer is wood layer;Bamboo block layer includes multiple bamboo blocks, multiple bamboo blocks are sequentially connected along second direction, and the bamboo grain extension direction of each bamboo block is parallel to first direction, first direction and second direction are perpendicular.The utility model solves the defect that existing technology in passenger car floor exists heavy weight, high cost, non-renewable, poor environmental protection, realizes a kind of light weight, high strength, environmental protection and economic board.

This utility model provides an automatic weighing device for preventing the diffusion of carbon black in tire production, belonging to the field of carbon black production technology. The device includes a storage cylinder, a weighing cylinder, a sealing cap, and a conveying pipe. The storage cylinder is shaped like an inverted frustum, with a rectangular outlet at its bottom. The weighing cylinder is positioned below the storage cylinder, with a rectangular inlet at its top corresponding to the outlet at the bottom. The weighing cylinder is cylindrical. The sealing cap is connected to the bottom of the storage cylinder via a hinge shaft, the axis of which is parallel to the long side of the rectangular outlet. The sealing cap is used to open or close the rectangular outlet at the bottom of the storage cylinder. One end of the conveying pipe is connected to the side wall of the weighing cylinder, and the conveying pipe is L-shaped. The other end of the conveying pipe extends downwards at an angle. This utility model solves the problem in the prior art where carbon black weighing during tire production causes carbon black dust to diffuse into the surrounding environment, resulting in additional production costs and safety hazards.

The invention belongs to the technical field of organic compounds and artificial boards, and relates to a whitening agent, a preparation method thereof and application of the whitening agent in whitening type medium density fiberboards, the whitening agent comprises the following components by mass percent: 2-5% of hydrogen peroxide, 0.2-0.6% of sodium silicate, 0.5-1.5% of sodium hydroxide, 0.1-0.4% of water-soluble stilbene fluorescent whitening agent and the balance of water. The preparation method comprises the following steps: sequentially adding the components into water at 60-65 DEG C, stirring and dissolving, and keeping the temperature at 60 DEG C for later use. When being applied, the cleaning agent is added in a wood chip washing process, the mass of the cleaning agent is 1-1.5% of the total mass of cleaning water for the first time, and 0.05-0.08% of the cleaning agent is supplemented per hour subsequently. According to the whitening agent, through the synergistic effect of chemical oxidation and physical color complementing, the whiteness of a fiberboard reaches 31-36 (only 14 in a conventional process), the physical and chemical properties meet the GB / T 11718-2021 standard, and the whitening agent is environmentally friendly, free of residues, simple to prepare and apply, suitable for industrial continuous production and capable of remarkably improving the added value of products.

The utility model provides a kind of small desktop type spinning draft device, including extrusion mechanism, cooling mechanism, oiling mechanism, draft mechanism and winding mechanism.Extrusion mechanism, cooling mechanism, oiling mechanism, draft mechanism and winding mechanism are connected in rack side, extrusion mechanism, cooling mechanism and oiling mechanism are set from top to bottom, and draft mechanism is set between winding mechanism and oiling mechanism.Cooling mechanism and oiling mechanism are provided with silk pressing mechanism, and oiling mechanism downside is equipped with guide mechanism.Extrusion mechanism extrudes tows, and tows are cooled after cooling mechanism, and then oiling is carried out in oiling mechanism, and after oiling, tows are reversed after guide mechanism, and then draft in draft mechanism, and after draft, tows are wound by winding mechanism.The utility model integrates extrusion, cooling, oiling, draft, winding and other multi-process, realize desktop miniaturization, small floor area, and adapt to small batch, multi-batch research and development production demand.

This invention relates to an ultra-lightweight steel-framed concrete component and its preparation method, belonging to the field of building engineering technology. By filling the steel frame with a lightweight core material and an inner filling layer, not only can the overall strength of the steel frame be improved, but the presence of the lightweight core material can also reduce the overall weight of the steel frame. By creating cavities through holes in the lightweight core material, the weight of the component itself is reduced, facilitating production, transportation, and construction, reducing the self-weight of buildings or structures, and improving seismic performance. In addition, it should be noted that by wrapping the steel frame with an outer cement fiberboard using porous polymer as lightweight aggregate, the steel frame acquires fireproof and corrosion-resistant properties.

The utility model provides a carbon fiber LED display screen assembling structure which comprises a frame, an LED display panel and a power supply control box, a plurality of cross beams are sequentially and transversely arranged on the inner side of an outer frame from top to bottom, a section bar frame is vertically arranged in the middle of the inner side of the outer frame, the cross beams are connected with the section bar frame in a crossed mode, and the outer frame and the cross beams are made of carbon fiber materials. An LED display panel is fixedly installed on one face of the frame, a power supply control box is fixedly installed on the other face of the frame through a profile frame, and the power supply control box is electrically connected with the LED display panel. The frame is firmly formed by the outer frame, the cross beams and the profile frame, the LED display panel is fixedly installed on one face of the frame, the frame can fix, bear and install the LED display panel, and the installation stability of the LED display panel is guaranteed. The frame can fixedly mount and bear the power supply control box through the section bar frame, so that the mounting stability of the power supply control box is guaranteed. And the outer frame and the cross beams are all made of carbon fiber materials, so that the advantages of high strength and light weight are achieved.

The utility model belongs to the technical field of racing shoes, and discloses a racing shoe which comprises a sole, a shoe body, a shoe tongue and a shoelace, the height difference of the front portion and the rear portion of the sole is 4 mm, the sole comprises an outsole and a midsole, the midsole is arranged on the outsole, the midsole and the outsole are both made of light materials, the shoe body is made of string technology materials and fixedly arranged on the midsole, and the shoe tongue is arranged on the shoe body. The insole can wrap the outer side of the lower edge of a heel of the shoe body, the shoe tongue is made of a microfiber cloth material, one end of the shoe tongue is fixed to the shoe body, and the shoelace is made of an anti-slip material and can penetrate through the shoe body to limit the shoe tongue. Due to the fact that the outsole and the midsole are made of light materials, stability of material performance of the racing shoe can be effectively guaranteed, the weight reduction effect can be achieved, meanwhile, the shoe body is made of chord technology materials, the supporting performance of yarn on the stress portion can be guaranteed while the vamp is extremely light, the shoe has good tearing strength, and the shoe is not prone to falling off. And the effect of all-directional ventilation can be achieved.

This utility model relates to the field of medical device technology, specifically to a coil assembly and a medical device. The coil assembly includes at least one insulating plate and a coil attached to the insulating plate with adhesive. Each insulating plate has multiple through holes and multiple serpentine holes, which are staggered. The serpentine holes are arranged radially from the center of the area where the coil is located on the insulating plate. This application combines multiple through holes with multiple serpentine holes, and the serpentine holes are arranged radially from the center of the area where the coil is located on the insulating plate. The serpentine holes, through their meandering path, increase the space for adhesive within the limited space of the insulating plate, providing sufficient adhesive capacity. Simultaneously, they can disperse stress, avoiding significant stress concentration caused by the presence of holes, and have minimal impact on the overall hardness and structural strength of the insulating plate, thus ensuring the mechanical properties of the coil assembly.

The utility model discloses a multilayer reinforced protection type packing carton, including the box body, the top of box body is provided with the box cover, the box body and box cover all include white cardboard layer, the surface fixedly connected with corrugated paperboard layer of white cardboard layer, one side of corrugated paperboard layer is provided with first function layer, first function layer includes honeycomb paperboard layer and EVA bubble cotton layer, one side of first function layer is provided with second function layer. The utility model discloses through setting up corrugated paperboard layer, utilizes the mechanical characteristic of corrugated structure, promotes the compression strength and the bending resistance of packing, supports the stacking weight, disperses external pressure, reduces local stress deformation, especially suitable for heavy object packing or transportation scene, through setting up honeycomb paperboard layer, the honeycomb three -dimensional structure provides excellent compression resistance and impact resistance, effectively absorbs external impact force, light in weight but high in strength, can promote the protection effect under the premise of not increasing packing weight, is suitable for transportation scene.

The application discloses a kind of plant fiber raw material pretreatment methods of electrically driven deep eutectic solvent, work electrode, auxiliary electrode, reference electrode are placed into electrolytic cell to form three-electrode electrolysis device, and deep eutectic solvent (DES) is added into electrolytic cell as pretreatment liquid;Plant fiber raw material is added to pretreatment liquid and electrolysis is carried out;After electrolysis is completed, the prepared fiber is washed and dried;After plant fiber extraction is completed, DES in pretreatment liquid is recovered and then used for plant fiber extraction again.Compared with the process of traditional plant fiber extraction using only deep eutectic solvent, the temperature required in the reaction process of the method is lower, the reaction time is relatively shorter, in the extracted plant fiber, not only the content of lignin is lower (the removal rate of lignin is high), but also the damage of DES to fiber polymerization degree and strength is smaller, the selectivity of system can be regulated by controlling voltage and other electrolysis parameters, and then the chemical composition of the prepared fiber can be regulated.