30results about How to "Play a structural role" patented technology

The invention discloses a mesoporous Y-type zeolite molecular sieve and a preparation method thereof. The preparation method comprises the following steps of: firstly preparing a Y-type zeolite guiding agent; and then guiding synthesis of the mesoporous Y-type zeolite molecular sieve by using amphiphilic organosilane N,N-dimethyl-N-[3-(trimethoxysilane)propyl]octadecyl ammonium chloride (TPOAC) as a mesoporous template, wherein siloxane group at the organosilane terminal is firstly hydrolyzed into silicon hydroxyl; then the silicon hydroxyl is linked to a skeleton on the zeolite surface through chemical bonds; and other alkyl terminals are polymerized and then participate in pore expansion. According to the method disclosed by the invention, mesoporous zeolites can be synthesized by using a one-step hydrothermal process; the method is simple in preparation process, easy to operate and low in cost and good in connectivity between mesopores and micropores, and facilitates macromolecular diffusion. As the prepared mesoporous zeolite molecular sieve has the mesopores and the micropores, the defect of a single pore structure is avoided; and the mesoporous Y-type zeolite molecular sieve has broad application prospect in the catalytic field, in particular in macromolecular diffusion-limited reaction.

The invention belongs to the field of aluminosilicate zeolite molecular sieve synthesis, and relates to a method for synthesizing a Beta zeolite molecular sieve. The Beta zeolite is a high-silicon zeolite with a three-dimensional twelve-member ring cross pore canal structure; the Beta zeolite is used as a catalyst in petroleum refining and petroleum chemical engineering processes of hydrogen cracking, hydroisomerization, de-waxing, aromatic hydrocarbon alkylation, olefin hydration and the like due to unique structure and good thermal stability and hydrothermal stability of the Beta zeolite; and the Beta zeolite molecular sieve is an important industrial zeolite molecular sieve. Because a large amount of organic template agent is used for synthesizing the Beta zeolite, the cost is high, and the wide application of the Beta zeolite is limited. By adding low-temperature dried Beta zeolite raw powder serving as crystal seeds and performing high-speed shearing emulsification dispersion on the crystal seeds during preparing gel, the structure guiding effect of the Beta zeolite crystal seeds is fully exerted, the applicable crystal seed range is broadened, and the Beta zeolite product with good crystallinity is synthesized under low template agent consumption and wide silicon-aluminum ratio range.

The sealing silicone glue with low moisture permeability for hollow glass contains two components, component A and component B. The component A is prepared with poly(alpha, omega-dihydroxy siloxane 100 weight portions, petroleum resin 5-20 weight portions, active calcium carbonate 80-120 weight portions, quartz powder 20-50 weight portions and hollow glass bead 10-30 weight portions, and through mixing in a kneading machine or high speed planetary stirrer. The component B is prepared with silicate ester 40-60 weight portions, catalyst 0.5-1 weight portions, silane coupler 5-20 weight portions and silicon oil 20-40 weight portions, and through mixing inside a planetary stirrer at vacuum degree 0.06-0.099 MPa and rotation speed 20-600 rpm. When the glue is used, component A and component B are mixed I the ratio of 11-13 at room temperature.

The invention provides a detachable concrete component. The detachable concrete component comprises a concrete frame column section, a first concrete beam section, a second concrete beam section and a longitudinal bar intersection region, wherein one end of the second concrete beam section is perpendicularly connected with the concrete frame column section integrally; the other end of the second concrete beam section is spliced with a tenon type connecting joint at one end of the first concrete beam section through a mortise type connecting joint; and a plurality of first longitudinal bars arranged on the upper side and the lower side of the inside of the first concrete beam section and a plurality of second longitudinal bars arranged on the upper side and the lower side of the inside of the second concrete beam section outwards extend to the longitudinal bar intersection region and then are connected to one another. The invention further provides a constructing method and application of the detachable concrete component. The manufactured first concrete beam section can be detached and then assembled again, the amount of post-poured concrete is small, the detachable concrete component is convenient to mount and detach, the shearing force bearing capability and the repeated bending moment capability of the detachable concrete component are the same with those of an integrally cast concrete beam, and the structure is safe.

The inventiondiscloses a method for rapidly synthesizinga hierarchically porous HKUST-1 material with a dual-functiontemplate method. With the adoption of the method, the yield can be increased, and the synthesis time of the materialcan be shortened to 30 s. The method comprises steps as follows: Cu(NO3)2.3H2O is dissolved in deionized water, andtrimesic acid is dissolved in methanol and stirred; two solutions are mixed and stirred continuously; a template agent is added to a mixed solution and stirred, a product is subjected to suction filtration and then placed in a vacuum drying oven for drying, and the hierarchically porous HKUST-1 material is prepared. According to the method, N,N,N,N-tetramethylethylenediamineis taken as the template agent and adeprotonation agent simultaneously, the operation is simple, conditions are mild, and reaction time is very short; a synthetic product has a rich porous structure, is provided with micropores and mesoporessimultaneously, facilitates macromolecular diffusion and has better application prospect in the aspects of adsorption and separation of gas, catalysis, drug delivery and the like.

The invention provides a power type lithium ion battery ternary material and a preparation method thereof. According to the method, a macromolecular surfactant is used as a soft template to assist a precipitation reaction, and the nano nickel-cobalt-manganese ternary positive electrode material with uniform morphology and uniform granularity is prepared through sol-gel, so that the electrochemicalproperties such as power performance, discharge capacity and cycle performance of the lithium ion battery are improved. The nano nickel-cobalt-manganese ternary positive electrode material with consistent morphology and uniform particle size prepared by the method has the advantages that the contact area with an electrolyte solution is obviously increased when the nano nickel-cobalt-manganese ternary positive electrode material is used in a lithium ion battery, and meanwhile, the diffusion path of lithium ions is shortened, so that the electrochemical properties such as rate capability, gramcapacity and cycle performance of the lithium ion battery are improved.

The invention relates to the technical field of food processing and discloses a collecting and processing device for pea dehulling and selection. The collecting and processing device comprises a supporting-bearing device, wherein one end of the top of the supporting-bearing device is welded with two sides of the bottom of a top blocking mechanism, two sides, located at the top, of the top blockingmechanism are respectively welded with two sides of the bottom of a top limiting mechanism, the middle, located on the inner side of the top, of the top limiting mechanism is welded with a driving device, one end of an output shaft of the driving device is insert-connected into the inner cavity of a driving rotary shaft, two sides of the outer surface of the driving rotary shaft are welded with breaking driving blades, and a discharging processing structure is insert-connected to the middle of the inner cavity of a screen net disc. Peas needing dehulling are put in a force-borrowing swing processing device, the driving device drives the breaking driving blades, breakage processing can be conducted on the peas, the force-borrowing swing processing device is driven to perform swing processing by utilizing the rotation power of the driving rotary shaft, and the effect of finely screening peas can also be improved.

The invention provides a multilayer structure decoration and an air conditioner room unit. A local position of a shell comprises the multi-layer structure decoration, and furthermore, a local or complete position of a panel comprises the multilayer structure decoration; and the multilayer structure decoration orderly comprises a resin layer, a coat, a polyethylene terephthalate (PET) layer and a liner substrate from outside to inside. The decorative effect of the coat makes the appearance of the air conditioner indoor unit have an aesthetic feeling and a flexible and changeable style, and the resin layer can protect and seal an internal structure, and can also modify the decorative effect of the coat. A brand new making technology is adopted by the air conditioner room unit, has a far lower cost than a coating technology and substantially enhances the appearance effect of the air conditioner room unit.

The invention discloses a preparation method of a perovskite type oxide modified activated carbon catalyst loaded with noble metal. The noble metal is platinum or palladium, and the noble meatl loading capacity is 1-5% by weight. The preparation method comprises the steps that 1, perovskite type oxide modified activated carbon is prepared; 2, the perovskite type oxide modified activated carbon isadded into an alkaline solution for uniform stirring, and heat-preservation impregnation is performed to obtain activated carbon slurry; 3, a noble metal compound is dissolved in diluted hydrochloricacid to obtain an active component solution; 4, the active component solution is added into the activated carbon slurry, and uniform stirring and heat-preservation impregnation are carried out to obtain activated carbon slurry containing the noble metal; 5, a reducing agent and lye are added into the activated carbon slurry containing the noble metal, filtration is performed after reduction to obtain a filter cake, and the filter cake is washed to obtain the perovskite type oxide modified activated carbon catalyst loaded with the noble metal. The prepared noble metal catalyst has high reactionactivity, high selectivity and good stability, and metal is not easily lost during use.

The present invention relates to a porous ceramic, particularly to an alumina fiber magnesium aluminate spinel porous ceramic, which is prepared from the following raw materials by mass: 100 parts ofa main material, wherein the main material comprises active alumina powder, light magnesium carbonate powder and alumina chopped fibers, and a mass ratio of the active alumina powder to the light magnesium carbonate powder to the alumina chopped fibers is 25-50: 60-40: 10-15; 0.1 to 0.8 part of a dispersant; 0.5 to 1.8 parts of a binding agent; 150 to 220 parts of water. The alumina fiber magnesium aluminate spinel porous ceramic provided by the invention has an open through structure, the volume of the alumina fiber magnesium aluminate spinel porous ceramic after being calcined and cooled islarger than that of a green body, firing expansion occurs, the fiber not only plays a role of a framework, but also reacts with the raw material light magnesium carbonate to generate the magnesium aluminate spinel porous ceramic, and the structural strength is good. High porosity and compressive strength are realized.

The invention discloses a computer radiator for travel, relating to the technical field of heat dissipation devices. Aiming at the problem that the conventional laptop radiator is poor in convenience,the radiator disclosed by the invention is provided with a first main body and a second main body which can be opened and closed by virtue of a telescopic connecting device. An upper turning plate and a lower turning plate are symmetrically hinged onto the bottom surfaces of the first main body and the second main body; vertical telescopic rods used for preventing the upper and lower turning plates from being moved opposite to each other are arranged between the upper and lower turning plates of the first main body and the upper and lower turning plates of the second main body; a horizontal telescopic rod A used for preventing the two upper turning plates from being moved opposite to each other is arranged between the two upper turning plates; and a horizontal telescopic rod B used for preventing the two lower turning plates from being moved opposite to each other is arranged between the two lower turning plates. The size of the radiator disclosed by the invention in a non-operating state is decreased by more than one time compared with the size in an operating state, and the radiator has the characteristics of space saving and high practicality.

The invention discloses a hidden type wooden beam column joint reinforcing device and a reinforcing method thereof in the technical field of wooden building repair, the reinforcing device comprises an FRP rib, magneto-rheological plastomer springs are arranged at the two ends of the FRP rib, a layer of hexagonal iron sheet is arranged on the outer side of each magneto-rheological plastomer spring for wrapping, and the hexagonal iron sheet is filled with magneto-rheological fluid; the high-strength bolts penetrate through the hexagonal iron sheet to be fixedly connected with the small logs and the FRP ribs to be fixedly connected with the hexagonal iron sheet, the thin memory alloy diaphragms are attached to the two sides of the hexagonal iron sheet respectively, the small quadrilateral iron containers are attached to the outer layers of the thin memory alloy diaphragms, and the small quadrilateral iron containers are filled with magnetorheological fluid. The quadrilateral iron small container is connected with a sleeve on the outer side, and then the sleeve is connected with a beam column. According to the reinforcing device, the flexural capacity and rigidity of the beam-column joint are improved, meanwhile, earthquake or wind vibration energy can be dissipated through the damping energy dissipation effect, and the original semi-rigid characteristic of the mortise and tenon joint is kept.

The invention relates to a preparation method of beta-zeolite. The preparation method comprises the following steps: adding tetraethyl ammonium halide, an aluminum source, and a silicon source into a sodium hydroxide solution, carrying out low-temperature aging for 2 to 16 hours at a temperature of 40 to 100 DEG C, placing the reaction mixture on a multi-layer screening plate in a reactor, adding water and an auxiliary template agent namely low-carbon organic amine into the reactor bottom, heating, carrying out crystallization for 24 to 60 hours at a temperature of 130 to 160 DEG C, filtering, washing, and drying so as to obtain the beta-zeolite. The mole ratios of the materials in the synthesis system are as follows: SiO2 / Al2O3=30-300, TEA+ / SiO2=0.05-0.30, Na2O / SiO2=0.15-0.80, and H2O / SiO2=7-15. The mole ratios of the materials in the reactor bottom are as follows: H2O / SiO2=0.5-2.0, and R / SiO2=0.08-0.18. The preparation method has the advantages of low synthesis cost and high synthesis efficiency.

The invention provides a preparation method of a hierarchical pore ZSM-5 nanometer aggregate. The method comprises the specific steps that alkali metal salt is added into a system formed by a siliconsource, an aluminum source and an alkali source at first; then, a small amount of nano-crystalline liquid is added into the system to form a gel state; finally, a low-temperature nucleation-high-temperature crystallization two-step temperature varying crystallization strategy is adopted for performing crystallization synthesis, and the hierarchical pore ZSM-5 nanometer aggregate similar to a hedgehog shape is obtained. By introducing the alkali metal salt, the problem that current most aggregate zeolites are not uniform is solved, and the whole zeolite size and the nanometer primary particle size are both controllable; due to the two-step temperature varying strategy, the zeolite crystallization time is greatly shortened; under a template-free system, a small amount of nanometer microcrystalline liquid is added, and the theory for green chemical synthesis is met. Accordingly, the method has the advantages of being easy to operate, low in energy dissipation, environmentally friendly andthe like, and has the good industrial application value.

The present invention relates to a kind of BCN / Fe x O y @C f The preparation process of the / C composite structure wave absorbing material includes the following steps: f The fibers are dipped in ferric nitrate solution to complete the first dipping operation and dried; continue dipping in a mixed solution of boric acid, urea and melamine, and then dried to obtain BCN / Fe x O y @C f Preform; using a vacuum impregnation machine, BCN / Fe was treated with an organic solvent mixed with graphene, pitch, and n-hexane. x O y @C f The preform is vacuum impregnated, and the impregnated sample is obtained by vacuuming; the impregnated sample is cured to obtain a cured sample; the cured sample is cracked to obtain a wave absorbing material; the vacuum impregnation, curing and Cracking until the weight gain of the absorbing material is less than 1% to obtain the BCN / Fe x O y @C f / C composite structure absorbing material product has the integrated performance of high temperature absorbing and mechanical bearing, and has excellent thinning performance and mechanical performance.

The invention provides high-anisotropy magnetic memory alloy and a preparation method thereof, and belongs to the field of shape memory alloy. The alloy has the good mechanical property and the high magnetocrystalline anisotropy and is the high-anisotropy magnetic memory alloy which can generate recoverable strain by driving martensite for twin crystal boundary migration and reverse migration through external magnetic field change. The chemical formula of the alloy is Ni<x>Co<y>Al<z>Lu<j>, wherein x is larger than or equal to 38.6 and smaller than or equal to 39.7, y is larger than or equal to28.5 and smaller than or equal to 31.6, z is larger than or equal to 27.4 and smaller than or equal to 34.2, j is larger than or equal to 0.5 and smaller than or equal to 7, x+y+z+j=100, and x, y, zand j serve as the molar percentage content. Compared with existing materials, the second phase of the magnetic memory alloy has the micron Lu2Ni17 metal intermediate phase, thus, the magnetic memoryalloy has the good mechanical property and the high magnetocrystalline anisotropy and can be well applied to the fields of high-precision drivers capable of being used at the room temperature, actuators and the like.

The invention discloses a preparation method of white carbon black with a high structure and a high oil absorption value. The preparation method comprises the following steps: preparing a sodium silicate solution with the modulus of 3.3-3.5 and the concentration of 0.5-1.230 mol / L and sulfuric acid with the mass ratio concentration of 30-60%; the preparation method comprises the following steps: adding water and a sodium silicate solution into a reaction kettle according to a volume ratio of 100: (30-50), adding sodium dodecyl benzene sulfonate, adding sulfuric acid, reacting to form gel, stopping adding acid, and stirring; continuously adding acid to carry out primary reaction, adjusting the pH value to 3.5-5.0, adding a 3-glycidyl ether oxypropyl trimethoxy silane coupling agent to age, stirring at a constant temperature, and dropwise adding sodium silicate to enable the pH value of the suspension to reach 8.0-10.5; stirring while adding a sodium silicate solution and sulfuric acid to carry out secondary reaction, controlling the pH value to be 8.0-10.5, stopping adding sodium silicate after 40-60 minutes, continuously adding sulfuric acid to completely react, uniformly stirring, adjusting the pH value to be 4.0-5.5, and continuously aging; adding a coupling agent, and continuing aging to obtain a suspension; and carrying out washing, solid-liquid separation, pulping and spray drying to obtain a white carbon black product with a high structure and a high oil absorption value. The white carbon black product prepared by the method has the characteristics of high structure and high oil absorption value.

The invention discloses a planetary reducer output shaft non-windowing structure, which includes an output shaft; a planet carrier is integrally formed on the output shaft; the planet carrier is of acylindrical structure without a window. A through hole and a screw hole are respectively formed in the end surface of the planet carrier; the interior of the through hole is connected with a planet wheel through a tight-fit mandrel; internal threads are formed in the inner wall of the mandrel; wear-resistant gaskets are placed on the end faces of the planet wheels. A large gasket is attached to the outer end surface of the wear-resistant gasket; kidney-shaped holes and through holes are respectively formed in the surface of the large gasket; the position of the kidney-shaped hole corresponds to the position of the internal thread; the positions of the through holes correspond to those of the screw holes; fastening screws are arranged between the kidney-shaped holes and the internal threads. The locking screws are arranged between the through holes and the screw holes, the large gasket is fastened in the screw holes in the surface of the output shaft through the screws. The structure iseasy to manufacture, wherein the planet wheel is convenient to mount and dismount due to the fact that the windowing-free structure is connected with the large gasket through the screws, meanwhile, other matched parts are prevented from being damaged during mounting and dismounting, so that the planet wheel is a very good innovative scheme and has market popularization prospects.

The invention discloses a method for preparing a perovskite-type oxide-modified activated carbon-loaded noble metal catalyst. The noble metal is platinum or palladium, and the loading amount of the noble metal is 1wt% to 5wt%. The preparation method comprises: 1. Preparation of perovskite Mineral oxide-modified activated carbon; 2. Add perovskite-type oxide-modified activated carbon into the alkaline solution and stir evenly, and then impregnate to obtain activated carbon slurry; 3. Dissolve precious metal compounds in dilute hydrochloric acid to obtain active component solution 4. Add the active component solution to the activated carbon slurry, stir evenly, keep warm and impregnate to obtain the activated carbon slurry containing precious metals; 5. Add the reducing agent and lye to the activated carbon slurry containing precious metals, filter after reduction, and obtain filter cake , washing the filter cake to obtain a perovskite-type oxide-modified activated carbon-supported noble metal catalyst. The noble metal catalyst prepared by the invention has high reaction activity, high selectivity and good stability, and the metal is not easy to be lost during use.

The invention discloses a method for calculating a structural disturbance degree of soft soil by utilizing changes of shear modulus. The method comprises the following steps: before sampling, carrying out field in-situ shear wave velocity testing to obtain an in-situ shear wave velocity; taking soil samples with different depths and marking; testing the obtained soil samples with different depths by utilizing a bending element shear wave velocity testing device respectively after stress of the soil samples is released and the soil samples are remolded so as to obtain a shear wave velocity under a stress-free state after sampling disturbance and a shear wave velocity after a soil body is remolded; calculating average effective stress and overlying effective stress of the soil body before sampling; and calculating to obtain the structural disturbance degree of the soil body, caused by sampling of each depth. The method disclosed by the invention is simple in testing step and accurate in testing result; and two influence factors including soil body structural disturbance (unrecoverable disturbance) and stress state changes (recoverable disturbance) in a sampling process are separated so that the structural disturbance degree of the soil body, caused by the sampling process, can be calculated in field and indoors respectively.