31results about How to "Guaranteed to resist pressure" patented technology

The invention discloses a fiber-reinforced modified expanded perlite thermal insulation board and a production method thereof. The thermal insulation board comprises the following components, by weight: 18-25 parts of cement, 5-8 parts of fly ash, 2-5 parts of popyltrimethoxysilane, 5-10 parts of polyacrylate emulsion, 50-70 parts of modified expanded perlite, 0.7-2.9 parts of sodium dodecylbenzenesulfonate, 5-10 parts of additives, 0.1-0.5 parts of PP fiber, 0.5-2 parts of hydroxypropyl methylcellulose, 3-5 pars of zirconia fiber, 1-3 parts of carbon fiber and 10-20 parts of water. According to the modified expanded perlite thermal insulation board, cement, fly ash, PP fiber and other organics and inorganics are adopted as raw materials, such that industrial and mining waste materials are effectively utilized, and no toxic or harmful substance is added. Therefore, the modified expanded perlite thermal insulation board is green and environment-friendly. The modified expanded perlite thermal insulation board has the advantages of wide raw material source and low cost. The production process is simple and is easy to operate. With the thermal insulation board, requirements by different building materials can be satisfied, and good social and economic benefits are provided.

The invention relates to a making method of an anterior atlantoaxial fixing plate. The making method comprises the following steps: acquiring atlantoaxial CT data of a patient; obtaining a three-dimensional atlantoaxial model through threshold setting and a region growing operation; implementing 3D printing and reduction on the atlantoaxial model; making an anterior atlantoaxial fixing plate model, conducting CT scanning and establishing a three-dimensional anterior atlantoaxial fixing plate model and a curved surface model; introducing the cured surface model into digital model carving software and conducting detail processing; conducting a rolling-over operation on the curved surface model, and further processing a solid mold; and pouring a mineralized collagen-base composite material into the mold and implementing molding, so that the anterior atlantoaxial fixing plate is obtained. The invention also relates to the anterior atlantoaxial fixing plate. According to the invention, theanterior atlantoaxial fixing plate is made in accordance with data of patients, so that the anterior atlantoaxial fixing plate can achieve good embedded matching with an atlantoaxial segment; and theanterior atlantoaxial fixing plate can be installed just by adjusting the position, relative to the atlantoaxial segment after reduction, of the anterior atlantoaxial fixing plate in an operation; therefore, the anterior atlantoaxial fixing plate is simple to operate, and a complex process of secondary molding in the operation is avoided.

The invention discloses a precast beam construction technology, and particularly relates to a precast beam pedestal obtained through a pre-tensioning method. The precast beam pedestal comprises a rectangular plate bottom plate and force transmission columns arranged on the two sides of the bottom plate in parallel. A fixing end steel beam is arranged at one ends of the force transmission columns, and a tensioning end steel beam is arranged at the other ends of the force transmission columns. A tensioning device is connected to the tensioning end steel beam. Steel strands are arranged between the fixing end steel beam and the tensioning end steel beam. When the tensioning device conducts tensioning on the steel strands, the steel strands and the tensioning end steel beam move relatively, and therefore the fixing end steel beam can be tensioned and closely attached to one ends of the force transmission columns, and meanwhile the tensioning end steel beam is pressed and closely attached to the other ends of the force transmission columns. According to the precast beam pedestal obtained through the pre-tensioning method, by changing the structural form of the pedestal, the defects that a traditional pedestal is complex in structure, wastes materials and labor and is long in manufacturing period are overcome, the precast beam pedestal can be simple in structure, cost is substantially saved, and the construction progress is accelerated.

The invention relates to a plastic building template system. The system comprises first templates which are spliced together to form a plane template system, and second templates which are spliced with the first templates to form corners, wherein, plane connecting heads are formed on spliced edges of the first templates; the second templates form corner connecting heads on spliced edges between the second templates and the first templates; and the plane connecting heads are coupled with the corner connecting heads so that seams of the building template system have higher strength and better binding tightness and meanwhile external surfaces of panels at two sides of the neighboring templates are respectively limited on the same plane at the same side, thus the surface of the building template system close to a grouting side is flat, and the surface flatness of the building after cast molding is ensured.

The invention discloses a polyacrylate enhanced modified expanded perlite thermal insulation board and a production method thereof. The modified expanded perlite thermal insulation board comprises the following components, by weight: 25-40 parts of cement, 5-8 parts of fly ash, 2-5 parts of triethoxysilane, 5-10 parts of polyacrylate emulsion, 50-70 parts of modified expanded perlite, 0.7-2.9 parts of sodium dodecylbenzenesulfonate, 5-10 parts of additives, 1-3 parts of quicklime, 0.1-0.5 parts of PP fiber, 0.5-2 parts of carbon fiber, 5-10 parts of diatomite, 4-10 parts of sodium silicate and 10-20 parts of water. According to the modified expanded perlite thermal insulation board, cement, fly ash, diatomite, PP fiber and other organics and inorganics are adopted as raw materials, such that industrial and mining waste materials are effectively utilized, and no toxic or harmful substance is added. Therefore, the modified expanded perlite thermal insulation board is green and environment-friendly. The modified expanded perlite thermal insulation board has the advantages of wide raw material source and low cost. The production process is simple and is easy to operate. With the thermal insulation board, requirements by different building materials can be satisfied, and good social and economic benefits are provided.

The invention discloses straw-fiber-reinforced spray-coating phosphogypsum-based fireproof mortar as well as a preparation method and application thereof, belonging to the technical field of building materials. A straw-fiber-reinforced spray-coating phosphogypsum-based fireproof mortar of the present invention is prepared from the following raw materials according to weight percentage: 65-85% of composite cementitious material, 10-30% of lightweight fine aggregate, and 0.6-2.8% of carbon fiber %, 0.2-1.5% of straw fiber, 0.4-2.5% of polymer, 0.8-2.4% of organic silane coupling agent, and 0.1-0.5% of high-performance compound water reducer. The technical solution of the invention can effectively improve the fire prevention ability of the mortar, thereby reducing the fire risk of the steel structure building. At the same time, the mortar material is easy to use in construction and firmly combined with the steel structure building.

The invention discloses a marine oil filed drill head. The marine oil filed drill head mainly comprises a connecting rod and a drill body, the top of the drill body is fixedly connected with a base plate of the connecting rod, the drill body comprises a drill head body and multiple auxiliary drills, the auxiliary rods are arranged on the substrate end face of the drill head body, the drill head body is conical, grinding particles are uniformly fixed to the auxiliary rods, a water opening is formed between two adjacent auxiliary rods and is in a streamline shape, the auxiliary rods are enclosedin an arc shape with the drill head body being the center axis, the bottom of the auxiliary drill is slightly lower than the bottom of the drill head body, and a hard alloy layer is fixed to the bottom of the drill head body. The marine oil filed drill head is simple in structure, practical, safe and convenient to use, the diving efficiency of well drilling can be effectively ensured, the adapting service life of the drill body is also ensured, the drill head body is utilized to lead drilling with the point, then the auxiliary drills are utilized to conduct drilling with the surface, it is ensured that a rock stratum can be firstly cracked under the leading effect of the drill head, through whole surface drilling of the auxiliary drills, the practical effect can be ensured, and the practicability is ensured.

Provided is a preparation method of domestic garbage jelly. The preparation method comprises mixing garbage powder and water, evenly stirring, adding in a pasting agent, stirring until garbage pulp turns light green from light brown, adding in a separating agent, evenly stirring, adding in an antiseptic bactericide, stirring until the garbage pulp turns light brown from light green, adding in a curing agent, stirring and obtaining the domestic garbage jelly. The preparation method of the domestic garbage jelly enables domestic garbage to be made into the jelly and be applied to building elements, roads, terraces, walls, mortar, sculpture and the like. The domestic garbage jelly is waterproof, damp-proof and resistant to pressure, bend, high temperature and freezing and the like. The domestic garbage jelly is attractive in surface, environment-friendly, high in adhesion, moderate in draft rate, not subjected to wind and rain and durable in use, does not generate moss, is a burning-free, economical, practical, low-carbon and environment-friendly economic combination body, reduces production cost, and improves social benefits.