50results about How to "Facilitate mass industrial production" patented technology

The invention provides a water-based gel casting method for structural ceramics. Organic monomers, cross-linking agents and dispersing agents are dissolved in deionized water to be prepared into a mixed solution. Plasticizers are added in the mixed solution to be prepared into a raw material solution. Ceramic powder is added in the raw material solution and subjected to ball milling to obtain a ceramic slurry; initiators and stimulation agents are added in the ceramic slurry, bubbles dissolved in the ceramic slurry are removed in vacuum after the mixture is evenly stirred, and the mixture is injected in molds to be molded to obtain solidified wet ceramic blanks; the solidified wet ceramic blanks are dried to obtain dry blanks, and the dry blanks are subjected to processing and thermal treatment to be produced into ceramic products. In the technological process, glycerol or Tween 80 is used as plasticizers, so that the plasticity of the molded blanks is improved, residual stress of the blanks is reduced, defects such as cracking during drying are prevented, the ceramic blanks are high in compactness, good in plasticity, uniform in structure and suitable for batch industrial production.

A method for pickling sour vegetable includes such steps as providing Chinese cabbage, cabbage, radish, etc, immersing in boiling water, immersing in cold water, immersing in lactics liquid, loading bag, holding the temp while souring, water washing, sealing in containers, low-temp souring, and water washing. Its advantages are good taste, low content of nitrite.

The invention provides a phosphate-containing high-adaptability early-strength polycarboxylate superplasticizer, and a preparation method and application thereof, and relates to the technical field of concrete admixtures. The phosphate-containing high-adaptability early-strength polycarboxylic acid water reducer is prepared by copolymerizing 90 to 110 parts of unsaturated polyether macromonomer, 10 to 20 parts of unsaturated carboxylic acid and 1 to 6 parts of phosphate-containing acrylamide free radical. A polyacrylic acid derivative and a polyether side chain on the molecular chain of the water reducing agent provide dispersing performance, the phosphate ester-containing polyacrylamide improves the adaptability of the water reducing agent due to the existence of a phosphate group on one hand, and amido balances the retarding effect of the phosphate group on the other hand, and also improves the early strength effect of the product. Therefore, the cement early strength agent has better adaptability and early strength effect when being used for mixing different types of cement and high-mud-content aggregate concrete.

The invention relates to a graphite tank for sintering a silicon carbide ceramic tube, a high-performance silicon carbide ceramic tube and a preparation method of the high-performance silicon carbideceramic tube. The graphite tank is a V-shaped graphite tank with an arc vertex angle, the diameter of the arc part of the arc vertex angle is equal to the sum of the outer diameter of the required silicon carbide ceramic tube and (0.1-0.3) mm, the angle alpha of the V-shaped graphite tank is equal to 2*arcsin (m / M)-x, wherein x is larger than or equal to 0 and smaller than or equal to 2, m is themaximum mass per unit length of the corresponding silicon carbide ceramic tube biscuit when the outer diameter roundness of the silicon carbide ceramic tube obtained after degreasing and sintering ofthe silicon carbide ceramic tube biscuit on a planar graphite plate can be kept at + / -0.1 mm, M is the mass per unit length of the to-be-degreased and to-be-sintered silicon carbide ceramic tube biscuit, and M is larger than m and smaller than or equal to 8.0 g / cm. According to the graphite tank, the silicon carbide ceramic tube is attached to the arc vertex angle to the maximum extent when the sintering shrinkage process is finished, and the straightness, the roundness and the strength of the ceramic tube are improved.

The invention discloses an integrated spontaneous heating floor board which comprises a floor board main body and a spontaneous heating assembly. The floor board main body comprises a face plate and a bottom main body. The spontaneous heating assembly is arranged between the face plate and the bottom main body. The face plate is fixedly connected with the bottom main body from top to bottom. The integrated spontaneous heating floor board is characterized in that the floor board main body is provided with an internal cavity. Plug-in portions are arranged on the periphery of the floor board main body. The spontaneous heating assembly is a waterproof electric heating assembly which comprises electric heating pieces, a transmission unit and two mounting seats, wherein the two mounting seats are respectively arranged at the left end and the right end of the electric heating pieces. The electric heating pieces are electrically connected with the transmission unit through electrodes of the electric heating pieces and corresponding electric connection components. The electric heating pieces of the spontaneous heating assembly are arranged in the internal cavity of the floor board main body. The mounting seats of the spontaneous heating assembly are fixedly connected and embedded in the floor board main body, and the two mounting seats are respectively exposed out of the left side and the right side of the floor board main body. Therefore, the left mounting seat and the right mounting seat of the spontaneous heating assembly are used as corresponding power supply plug connecting pieces on the left side and the right side of the integrated spontaneous heating floor board.

The invention relates to a preparation method of perovskite material powder. The method mainly comprises the following steps of: mixing a component 1 and a component 2, dissolving in a good solvent A, fully stirring and filtering to obtain a mixed precursor solution, adding an anti-solvent B into the mixed precursor solution, rapidly stirring until perovskite microcrystal precipitate is generated, cleaning the precipitate, and carrying out vacuum drying to obtain perovskite material powder. According to the preparation method disclosed by the invention, high-purity and impurity-phase-free perovskite material powder can be synthesized by using low-purity raw materials and is used for preparing various efficient film devices; and the technological process is simple and rapid, high-temperature heating is not needed, and high-flux industrial synthesis is facilitated.

The invention discloses a lower installation base of an installation base and a covering plate of the installation base. The lower installation base is an integrated injection molded piece; the lower installation base comprises a connecting part, a stair flange part and a lower half socket part; the connecting part of the lower installation base is connected with the lower half socket part through the back side; the covering plate is composed of an upper half socket part at the front part of the covering plate and a pressing plate part at the rear part of the covering plate; the upper side plane of the pressing plate part and the upper side plane of the upper half socket part are at the same plane; the lower side plane of the pressing plate is higher than the lower end face of the upper half socket part; and the covering plate is installed at the lower half socket part and on the connecting part of the lower installation base in a manner of being in match from up to bottom so as to compose a corresponding installation base.

The invention discloses a phase change heat storage type electric heating floor. The phase change heat storage type electric heating floor comprises a floor main body and an electric heating assembly. Socket positions which are connected with the adjacent electric heating floor portions during usage are formed on the periphery of the floor. The phase change heat storage type electric heating floor is characterized by also comprising a flat phase change unit; the floor main body comprises a panel component and a base plate; the corresponding positions of the panel component and the base plate in the vertical direction are bonded and fixed together to form the floor main body, wherein the inside of the floor main body comprises the first installation space; the electric heating assembly comprises an electric heating piece, a transmission unit and connection sockets which are located at the front end and the rear end of the electric heating piece respectively and used for performing electrical connection externally; the electric heating piece and the phase change unit are fixedly arranged in the first installation space of the floor main body; the panel component, the electric heating piece, the phase change unit and the base plate are arranged in turn from top to bottom and are in close contact with each other in turn in the vertical direction.

The invention discloses a degradable composite nanofiber. The composite nanofiber is prepared from star-shaped poly(L-lactide), poly trimethylene carbonate and poly epsilon-caprolactone through an electrostatic spinning method, wherein the weight ratio of the three components is (40-60) to (10-30) to (20-40). The degradable composite nanofiber is characterized in that the star-shaped poly(L-lactide) takes pentaerythritol as a core. The invention further discloses a preparation method and application of the degradable composite nanofiber. The degradable composite nanofiber is small in diameter, uniform in distribution and large in specific surface area, has excellent mechanical property and biodegradation property, can meet demands of tissue engineering material, and is beneficial to the adhesion, growth and differentiation of cells. Meanwhile, the preparation method is simple and controllable, and is beneficial to batch industrial production.

The invention provides a monomer cylindrical multi-directional constant-stiffness all-metal vibration absorber which comprises a mounting shaft, an axial lower end limiting stopper, an axial upper end limiting stopper, an axial vibration reduction medium, a first shell, a second shell, a radial limiting stopper and a radial vibration reduction medium, wherein the axial and radial vibration reduction components are of mutually independent structures; the axial vibration reduction component is cylindrical; the radial vibration reduction component is annular; the axial vibration reduction component is arranged in the radial vibration reduction component. By virtue of the unique design method of the vibration reduction components, multi-directional constant stiffness can be realized, the purpose of ensuring mutually-independent axial and radial stiffness regulation can be achieved, and the axial and radial resonant frequency intercoupling problem is radically solved; by virtue of controlling the densities of the vibration reduction media in the vibration reduction components, the resonant frequency points can be accurately controlled, the difference between the axial resonant frequency and the radial resonant frequency is controlled within + / -0.5Hz, and the usage requirements of vehicles, ships, airplanes and rockets in various occasions and the requirements for the multi-directional constant-stiffness vibration isolation and long-term storage of various instruments are met.

The invention relates to the environmental protection field, in particular to an ash easily removable filter bag. The filter material for preparation of the filter bag comprises a base cloth layer anda fiber mesh layer, the base cloth layer has a negative Poisson's ratio, and the fiber mesh layer is compounded on the base cloth layer by needle punching technology. Compared with the prior art, theinvention provides the ash easily removable filter bag, when ash removal is conducted on the filter bag, primary dust can be protected from being destroyed as much as possible while secondary dust isfully cleaned up. At the same time, during ash removal, secondary dust can be fully cleaned under the circumstance of a small flap force. According to the filter material used by the filter bag provided by the invention, through cooperation of the base cloth layer with a negative Poisson's ratio and the fiber mesh layer compounded to the same by needle punching, fine adjustment of gaps inside thefilter material can be realized. In addition, the filter bag provided by the invention also has the advantages of simple making process, high production efficiency, convenience for mass industrial production, etc.

The invention discloses energy-saving air-conditioning shoes using the weight of the human body as an air-conditioning energy source. Bottom; said heat-insulating upper bottom is provided with an air groove, and a heat transfer sheet is placed on said air groove; said heat-insulated lower bottom is provided with a compressed air outlet and a first air outlet; said compressed air The outlet is connected to the compressed air inlet provided on the vortex tube through a pipeline, and a check valve is installed on the pipeline between the compressed air outlet and the compressed air inlet; the vortex tube is provided with an output port and a second An air outlet, and the output port is connected to one end of the air groove on the heat-insulating upper bottom through a pipeline, and the other end of the air groove on the heat-insulating upper bottom is provided with a third air outlet. The invention has the characteristics of energy saving and environmental protection, convenience and reliability, low cost and long service life.

The invention discloses a fibre containing nanopore network prepared from high voltage electrostatic spinning. The fibre containing nanopore network is prepared from the following steps: blending the polypropylene carbonate, polycaprolactone and L-polylactide-tetracalcium phosphate at a mass ratio of (40-98):(1-40):(1-20) and a conductive metal salt which accounts for 0.2-0.5% of the total mass of the three materials, and preparing from a high voltage electrostatic spinning method; the electron microscopy image shows that the fibre is formed by a plurality of mutually connected nanopore networks, and the specific surface area is 115.76-180.45 m<2> / g. The invention further discloses application of the nanopore network fibre in the cartilage tissue engineering. The mutually connected nanopore networks can be formed at the surface and interior of the fibre, so that the specific surface area is increased; because of the good biocompatibility and biodegradability, the cartilage growth capability in the cartilage tissue engineering can be well guided. The fibre containing nanopore network is simple in preparation method, controllable and convenient for mass industrial production.

The invention discloses a self-heating assembly, which is characterized by being a waterproof electric heating assembly. The self-heating assembly comprises an electric heating piece, a transmission unit and two mounting seats respectively located on the front and rear ends of the electric heating piece. The front end and the rear end of the electric heating piece are respectively provided with a flaked sealed waterproof electric heating device of an electrode. A fire wire unit of the transmission unit is penetrated by a first penetrating connector thereof and electrically connected to one electrode of the electric heating piece, and a zero wire unit is penetrated by a second penetrating connector thereof and electrically connected to the other electrode of the electric heating piece. Two mounting seats are divided into a front side mounting seat and a rear side mounting seat according to the different locations. Each mounting seat comprises a lower mounting seat located beneath and a cover plate inserted into the lower mounting seat from top to bottom. A part where components of the transmission unit are electrically connected to each other and a part where the transmission unit is electrically connected with the electric heating piece in a penetrating way are respectively arranged in the corresponding mounting seat hermetically.

Provided is a self-heating floor which comprises a floor main body and an electrothermal component, wherein the floor main body comprises an upper part main body and a bottom plate, the electrothermal component comprises a circuit device, a first mounting seat and a second mounting seat, the first mounting seat and second mounting seat of the electrothermal component are used as power supply plug connectors on the left and right sides of the floor main body, the circuit device of the electrothermal component and the corresponding parts of the first mounting seat and the second mounting seat are arranged between the upper part main body and the bottom plate; the first mounting seat is a component of which the socket part is hermetically plugged in and electrically connected with the plug part of the second mounting seat of the electrothermal component of the adjacent self-heating floor; and the second mounting seat is a component of which the plug part is hermetically plugged in and electrically connected with the socket part of the first mounting seat of the electrothermal component of the adjacent self-heating floor. The self-heating floor is simple in structure and convenient for realization of industrial production.