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291results about How to "Increase connection force" patented technology

Artificial quartz plate raw material, artificial quartz plate and preparation method of artificial quartz plate

The invention discloses an artificial quartz plate raw material, an artificial quartz plate and a preparation method of the artificial quartz plate. The plate raw material is composed of a solid material and an additive, wherein the constituent content of the solid material by weight percentage is 58-62% of quartz sand, 28-32% of quartz powder and 8-13% of unsaturated polyester resin, the particle size of the quartz sand is 4-140 meshes, the particle size of the quartz powder is 25-1,250 meshes, the additive is a curing agent and a coupling agent, the weight of the curing agent is 0.8-2.0% of the weight of the unsaturated polyester resin, and the weight of the coupling agent is 0.5-1.5% of the weight of the unsaturated polyester resin. The preparation method of the artificial quartz plate sequentially comprises 1) weighting the raw material; 2) evenly overlaying the raw material of a template; 3) oscillating the template to press and form; 4) heating and curing the template through a microwave curing furnace; and 5) tapping out to demould and stacking to cool. The artificial quartz plate is simple in constituent and good in comprehensive mechanical property. The preparation method of the artificial quartz plate is low in energy consumption, high in efficiency and good in controllability of operation processes.
Owner:WUHAN SHARESUN HI TECH BUILDING MATERIAL

Preparation method of multifunctional emulsion type drag reducer for shale gas fracturing

InactiveCN105669895AExcellent anti-expansion abilityIncrease connection forceDrilling compositionReaction temperatureOil phase
The invention provides a preparation method of a multifunctional emulsion type drag reducer for shale gas fracturing. The preparation method comprises steps as follows: (1) firstly, an aqueous phase is prepared from water, anionic monomers, nonionic monomers and cationic monomers, the anionic monomers are added to the water, the mixture is neutralized to have the pH of 7 by the aid of a functional base, and then the nonionic monomers, the cationic monomers and an aid are added; (2) an oil phase is prepared from a solvent and an emulsifier which accounts for 5%-20% of the solvent in mass; (3) the aqueous phase and the oil phase are mixed, the water accounts for 10%-60% of the mixture in mass in the aqueous phase and oil phase mixture, high-speed shearing emulsification is performed, and then an initiator is slowly added at the reaction temperature of 20-80 DEG C under protection of nitrogen so as to initiate an emulsion polymerization reaction; (4) after the reaction is ended, a product is cooled to the room temperature, a low-surface-tension reverse phase agent is added, and the multifunctional drag reducer is obtained. The preparation method has the benefits as follows: the anti-swelling ability is outstanding, the discharge aiding effect is good, the drag reducer is multifunctional, and construction is convenient.
Owner:SHENGLI OILFIELD SHENGLI CHEM

Ocean floating body powered adjustable negative-pressure vacuum sucking disc type connector

ActiveCN105757109AReduce local stressAvoid sudden disastersSuction cupsTime delaysPneumatic pressure
The invention discloses an ocean floating body powered adjustable negative-pressure vacuum sucking disc type connector which comprises a cylinder and vacuum sucking discs, wherein the cylinder comprises a cylinder shell and an air pump; a cavity is formed inside the cylinder shell and connected with the air pump; a first opening and a second opening are formed in two ends of the cavity and respectively communicated with a connecting tube and branch tubes; the tail ends of the branch tubes are respectively connected with a plurality of vacuum sucking discs acting on a module; the air pressure inside the cavity is adjusted through the air pump. Therefore, the absorbing force of a vacuum sucking disc absorbing module can be adjusted. The ocean floating body powered adjustable negative-pressure vacuum sucking disc type connector disclosed by the invention is connected with two modules through the sucking discs respectively, so that the relatively large connecting force is effectively scattered; the connecting force of the modules can be freely adjusted; once the modules have faults, the two modules are not immediately separated but certain time delay is available, so that sudden dangers can be effectively avoided, time for rush repairing and remediation can be provided, and convenience in assembling and disassembling can be achieved.
Owner:JIANGSU UNIV OF SCI & TECH +1

Self-tightening half grouting sleeve connecting piece

The invention relates to a self-tightening half grouting sleeve connecting piece mainly applied to connecting of vertical reinforcing steel bars, including connecting of shear walls, frame columns and hanging board lamps. The self-tightening half grouting sleeve connecting piece is composed of a grouting opening (1), a thick liquid discharging opening (2), poking pieces (3), threads (4), a sleeve (5) and reinforcing steel bars (6). The diameter of the sleeve (5) is larger than the diameter of each reinforcing steel bar (6). The threads (4) are arranged on the inner wall of the sleeve (5). The grouting opening (1) is formed in the lower portion of the sleeve (5), the thick liquid discharging opening (2) is formed in the upper portion of the sleeve (5), and the poking pieces (3) are arranged in the position, between the grouting opening (1) and the thick liquid discharging opening (2), of the inner wall of the sleeve (5). The self-tightening half grouting sleeve connecting piece has the effects and advantages that the self gravity of the structure is utilized to conduct structure connecting, so that the structure is firmer; the diameter is increased slightly, so that the error-tolerant rate is increased; and meanwhile, connecting force is increased due to existing of the poking pieces, so that the length of the connecting piece can be reduced properly.
Owner:安徽博泰装饰材料有限公司

Core-shell structure positive electrode material and preparation method thereof

The invention provides a high-performance core-shell structure positive electrode material and a preparation method thereof. The preparation method comprises the following specific steps: (1) preparing a mixed solution A and a mixed solution B of nickel, cobalt and manganese salts with different molar components, and independently preparing a salt solution containing an X element; (2) respectively and simultaneously adding the solution A, an alkali solution and a complexing agent solution into a reaction kettle, and carrying out coprecipitation reaction to obtain an inner core; (3) adding the X salt solution and a precipitator solution to obtain an inner core with a coating layer; (4) adding the solution B, the alkali solution and the complexing agent solution into the base solution of the inner core with the coating layer to obtain a core-shell precursor with an interlayer; and (5) roasting to obtain the core-shell positive electrode material. According to the core-shell positive electrode material disclosed by the invention, due to the existence of the interlayer, a gap generated due to different volume changes of the inner core and the outer shell can be overcome, so that the connection force between the outer shell and the inner core is enhanced, and compared with a common core-shell positive electrode material, the core-shell positive electrode material has relatively excellent thermal stability and relatively long cycle performance.
Owner:TIANJIN B&M SCI & TECH

Grade lifting device of roller mill used for processing steel slag

PendingCN105214816AAvoid repeated grindingImprove grinding efficiencySievingScreeningSlagSpiral blade
The invention relates to steel slag processing equipment, in particular to a grade lifting device of a roller mill used for processing steel slag. The grade lifting device comprises a bracket, wherein a motor and an outer tube are arranged on the bracket; the bottom end of the outer tube is provided with a bottom plate which is fixedly connected with the inner wall of the outer tube; the top end of the outer tube is provided with a top plate; the lower part of the outer tube is provided with a feeding hole and a second discharge hole; the upper part of the outer tube is provided with a first discharge hole; the inner part of the outer tube is provided with a sieve tube; a cavity is formed between the outer wall of the sieve tube and the inner wall of the outer tube; the lower end of the sieve tube is fixedly connected with the bottom plate; the lower part of the sieve tube is provided with a feeding tube which communicates with the feeding hole; the top part of the sieve tube is provided with a discharge tube which communicates with the first discharge hole; a rotary shaft coaxial with the sieve tube is arranged in the sieve tube; the lower part of the rotary shaft is rotatably connected with the bottom plate; the upper part of the rotary shaft is rotatably connected with the top plate; the lower end of the rotary shaft is connected with the motor; and the rotary shaft is provided with a spiral blade which is in clearance fit with the sieve tube. The grade lifting device has the beneficial effect of improving the production efficiency.
Owner:重庆市富环建筑材料有限责任公司

Double-interfaced card packaging method and take-up clamp thereof

The invention provides a double-interfaced card packaging method and a take-up clamp thereof. The double-interfaced card packaging method comprises the following steps of: milling an outer groove in a card base, so as to expose an antenna head of the double-interfaced card; taking up and pulling up an antenna from the card base through the heated take-up clamp; milling an inner-layer groove in the card base where the antenna is pulled up; and welding an outer welding plate of a module and the pulled antenna. The take-up clamp provided by the invention is provided with a heating and temperature control device, so that the antenna and the card base in the double-interfaced card base can be easily separated, and the antenna head is taken up from the card base; meanwhile, the contact time between a clamp head and the card base is very short, so that the take-up speed is improved; and the clamping force of the clamp head can be adjusted, the take-up process can be smoothly carried out, and the break problem in the take-up process can be avoided. With the adoption of the take-up technology provided by the invention, the current condition that no automatic take-up equipment exists in an intelligent card industry at home and aboard can be solved; the machining process can be simplified; the production efficiency is improved; the product property is improved; and the machining cost is greatly saved.
Owner:中电智能卡有限责任公司

Cast-in-situ heat preservation and heat isolation beam, column or shear wall and construction method thereof

The invention discloses a cast-in-situ heat preservation and heat isolation beam, column or shear wall and a construction method thereof. The cast-in-situ heat preservation and heat isolation beam, column or shear wall comprises outer side concrete, a heat preservation and heat isolation plate and inner side concrete, wherein cavities are formed in the heat preservation and heat isolation plate; and reinforcement ribs are arranged in the cavities. The construction method comprises the following steps of: binding a steel bar cage, arranging the heat preservation and heat isolation plate and a steel bar net, arranging the reinforcement ribs, fixing the heat preservation and heat isolation plate, and erecting an inner side template and an outer side template; and pouring the inner side concrete and the outer side concrete, after the concrete reaches certain strength, dismantling the inner side template and the outer side template to form the cast-in-situ heat preservation and heat isolation beam, column or shear wall. Due to the cavities, pressure difference of the concrete on two sides of the heat preservation and heat isolation plate during in-situ casting of the concrete is reduced; the reinforcement ribs arranged in the cavities and the concrete in the cavities form reinforced concrete short columns; the connection force of the inner layer concrete and the outer layer concrete is increased, and vertical relative displacement of the inner layer concrete and the outer layer concrete is reduced; and finally, the automatic heat preservation and heat isolation beam, column or shear wall which is easy to construct, low in manufacturing cost, high in durability and high in heat preservation and heat isolation performance is obtained.
Owner:吴方伯

Method for performing compatibilization treatment on vulcanized rubber powder produced by utilizing waste rubber

The invention relates to a method for performing compatibilization treatment on vulcanized rubber powder prepared by utilizing waste rubber and belongs to the technical field of a waste rubber recycling process. The method comprises the following process steps of: cutting waste rubber into blocks and removing impurities, and cutting and pulverizing the blocks into coarse rubber particles with a particle diameter of between 2 and 3 mm; sending the coarse rubber particles into a mixing stirrer, adding a composite additive into the mixing stirrer, fully mixing the mixture and sending mixture into a pulverizer for pulverization and refinement, wherein the pulverization and refinement of the coarse rubber particles and the compatibilization treatment on the vulcanized rubber powder are simultaneously completed; and performing fineness classification by a fineness classifier to obtain a vulcanized rubber powder product which meets the fineness requirement and is already compatibilized. The method effectively improves the dispersion uniformity, interface compatibility and bonding strength of a vulcanized rubber powder product treated by compatibilization, can enlarge the application range, and improve the use value.
Owner:刘扬生
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