14results about How to "Evenly combined" patented technology

The portable graphene seedling raising shed has the advantages that the graphene composite support rod is adopted, the support rod is used as a heating device while supporting, the support rod itself is changed into an efficient and uniform heating body, stable and controllable heat supply is provided for the inside of the seedling raising shed, the spraying assembly arranged in the shed is convenient for watering and realizes intelligent control, the portable graphene seedling raising shed can be used for small-scale and family type seedling raising and cultivation in winter, has the characteristics of being light, capable of being quickly folded or stretched, and convenient for users to carry, transport and quickly deploy at different sites.

The application provides a wear-resistant composite piercing mill head manufacturing method and a piercing mill head, and the manufacturing method comprises the following steps: S1, preparing a steel base head; S2, adopting a submerged-arc welding process to make a flux-cored wire cladded on a working cone surface and a nose end surface of the steel base head, so as to form a cladding layer with a thickness of 6-8 mm; and S3, pre-oxidizing the cladding layer of the steel base head at high temperature, so that the wear-resistant composite piercing mill head is obtained. The wear-resistant composite piercing mill head manufacturing method has a dense and uniform oxide film on the surface of the cladding layer of the piercing mill head, the oxide film is firmly combined with the cladding layer, and the existence of the dense and uniform oxide film can reduce the power consumption of a steel pipe piercing mill and prolong the service life of the piercing mill head.

The invention discloses a lamination process of an AMB ceramic substrate and an FPC flexible circuit board, and relates to the technical field of semiconductors, and the lamination process comprises the following steps: preparing an AMB substrate; preparing an FPC (Flexible Printed Circuit) flexible board; pre-pressing and cleaning; performing vacuum pressing; performing laser cutting on the appearance; coating a functional coating; according to the lamination process of the AMB ceramic substrate and the FPC flexible circuit board, the positions of positioning holes of the AMB ceramic substrate and the FPC flexible circuit board are reserved in the design stage so that accurate positioning can be facilitated, the vacuum hot-pressing binding force with the FPC substrate is guaranteed through the AMB substrate pre-cleaning process before lamination, meanwhile, the filler of the coating is treated through long-chain alkyl silane, and therefore the coating quality is improved. And the moisture-proof and anti-permeation capacities of the coating are obviously improved. According to the invention, by optimizing the pressing process and functionalizing the protective coating, the packaging structure has excellent mechanical reliability and corrosion resistance at the same time.

The application discloses a kind of chopped carbon fiber reinforced fluorine-containing resin composite material and preparation method and application, belong to composite material preparation technical field, the application includes: to chopped carbon fiber is sequentially carried out surface activation treatment, homogeneity coating treatment and chemical bonding treatment, to be gradually structured interface bonding layer on the surface of chopped carbon fiber;The treated chopped carbon fiber is mixed with fluorine-containing resin matrix, and extrusion forming is obtained, and composite material is obtained.The application is sequentially carried out surface activation, homogeneity coating and the three-step synergistic modification of chemical bonding, first activation provides reaction site, then pass through homogeneity coating and eliminate the interface energy difference between fiber and matrix, finally pass through chemical bonding and lock interface, and gradually structured interface layer of strong combination, effectively solve the problem that chopped carbon fiber and fluorine-containing resin interface compatibility is poor, and easily peeling, realize the significant improvement of the mechanical properties of composite material.

The application belongs to the technical field of modified copolymer nylon and specifically relates to a modified PA6 material and a preparation method thereof. The application aims to solve the problem of high moisture absorption and lack of high insulation of the existing copolymer modified PA6 material. The application mixes caprolactam and lauryl lactam to obtain a PA6 / 12 random copolymer; pre-blends modified graphene oxide, boron nitride nanosheet and polyamide oligomer to obtain a composite suspension; coats the PA6 / 12 random copolymer on the surface, feeds the coated PA6 / 12 random copolymer into an extruder, adds the composite suspension after complete melting, uniformly mixes the composite suspension and the PA6 / 12 random copolymer, adds a flame retardant aid, and finally extrudes to obtain the modified PA6 material. The modified PA6 material prepared by the application has low water absorption and good insulation, and is not prone to electric leakage and tracking in a high-temperature working environment.

The application discloses a kind of high-temperature-resistant, acid and alkali-resistant acrylic pressure-sensitive adhesive and preparation method thereof, belong to pressure-sensitive adhesive technical field.The pressure-sensitive adhesive is made of 50-80 parts by weight of acrylic ester copolymer, 5-15 parts of 10-30nm SiO2 Nanoparticle, 1-5 parts of composite dispersant, 10-30 parts of ethyl acetate, 0.5-1.5 parts of crosslinking agent and 1-4 parts of silane coupling agent KH550.The preparation is first carried out by ultrasonic dispersion with coupling agent pretreatment, then composite dispersing liquid is prepared by adding composite dispersant, then it is fused with acrylic ester copolymer, and finally the finished product is obtained by adding crosslinking agent reaction.The application solves the problem of nanoparticle agglomeration by composite dispersion system, strengthens the interface combination by using coupling agent, balances the cohesive force and adhesive force by crosslinking agent, the product is resistant to high temperature up to 180 DEG C, after acid and alkali immersion, there is little residual glue, and it retains the excellent temperature bonding performance, suitable for many high-end scenarios.

This invention discloses a Ru / VN-C / C self-supporting electrocatalytic material for hydrogen evolution, its preparation method, and its application. The preparation method includes: using an integrated process of precursor impregnation and high-temperature nitridation conversion to construct a vanadium nitride (VN) active layer in situ on the surface of a C / C three-dimensional conductive framework, obtaining a VN-C / C self-supporting electrode; preparing a ruthenium-containing precursor solution; immersing the obtained VN-C / C self-supporting electrode in the ruthenium-containing precursor solution obtained in step five, and performing reduction treatment under xenon lamp irradiation to reduce and load Ru in situ on the VN surface; after treatment, removing the sample, washing, and drying to obtain the Ru / VN-C / C self-supporting electrocatalytic material for hydrogen evolution; exhibiting strong interfacial bonding and excellent conductivity; using photoreduction to load highly dispersed Ru to regulate the electronic structure and improve hydrogen evolution kinetics; having no binder on the electrode, high utilization of active sites, and good stability under high current density; and possessing a simple process and controllable conditions, suitable for large-scale preparation, with broad prospects for industrial application.

The utility model belongs to clutch technical field, especially a motorcycle clutch, the outer ring of centrifugal base is uniformly distributed with a plurality of centrifugal block slots, is provided with centrifugal block group in centrifugal block slot, is provided with end face pressing plate through elastic connecting structure in one end surface of centrifugal base, end face pressing plate is set on transmission core, is provided with transmission pressing plate in the other end of transmission core, is successively set with a plurality of outer tooth friction pieces, inner tooth friction piece from end face pressing plate on the transmission core of end face pressing plate and transmission pressing plate, outer tooth friction piece and inner tooth friction piece alternate arrangement, transmission pressing plate, transmission core and centrifugal base are connected through fastener, outer tooth friction piece is engaged with bowl public inner wall, the inner ring of inner tooth friction piece is engaged with transmission core, the utility model discloses the centrifugal force of centrifugal block group generates drive end face pressing plate and then fast pressure tight friction piece group, and the transmission process is more delicate, uniform, and the power output is more smooth.

The application discloses a miniaturized solid combustion aerosol generator and an aerosol generating system, which comprises a cabin main body provided with an air inlet pipe and an air outlet pipe, a cabin base and a combustion cage; the cabin main body is a double-layer sandwich barrel-shaped body composed of an inner cabin and an outer cabin, the cabin main body is reversely screwed on the cabin base in an open lower end mode, and the cabin main body and the cabin base form a combustion chamber; the combustion cage is a barrel-shaped metal mesh cage reversely screwed on the cabin base; the top of the combustion chamber is provided with a flow guide piece, the air inlet pipe is connected with the flow guide piece in sequence through the outer cabin and the inner cabin; the flow guide piece comprises an outer layer and an inner layer in a reverse funnel shape; the lower ends of the outer layer and the inner layer are connected to form an annular body, a plurality of jet holes of the air guiding cavities are uniformly distributed on the annular body in a ring shape; the air outlet pipe is arranged at the top of the outer cabin and is communicated with the sandwich cavity of the cabin main body; the advantages are simple structure and few components; the equipment is convenient to disassemble, transport and use; the airflow is uniform and stable, the combustion is stable, and the aerosol is stably generated and output.

The invention relates to the technical field of grass product storage equipment, and discloses a cigar cabinet structure capable of being monitored in real time, the cigar cabinet structure comprises a cabinet body and a cabinet door rotationally opened and closed with the cabinet body, a plurality of bracket assemblies are arranged in the cabinet body, and each bracket assembly comprises a support and a plurality of supporting shafts which are distributed in the support in parallel and can synchronously rotate; cigars are supported by the adjacent supporting shafts; a camera used for observing the state of the cigar is arranged on the upper side of each bracket assembly in the cabinet body, a control module connected with the cameras is arranged in the cabinet body, and a wireless transmitting module used for sending camera detection signals to a terminal is arranged in the control module. The cigar maintenance device has the beneficial effects that cigars can be automatically turned over, the cigar state can be monitored in real time, and the cigar maintenance effect is better.

The invention belongs to the technical field of mixing devices, and particularly relates to a mixing device for processing a tear-resistant sound-insulation rubber cushion block, which comprises a mixing tank, a PLC (programmable logic controller), a tank cover arranged at the top of the mixing tank, a stirring assembly, a synchronous pressurizing assembly, a feedback triggering assembly and an extension scraping assembly, the stirring assembly is rotationally arranged on the tank cover and extends into the mixing tank. The stirring speed is increased in time after the medicament is added to quickly break through interface resistance to realize uniform dispersion and stable combination of the medicament, meanwhile, materials adhered to the inner wall of the mixing tank are scraped by interval gradually-increased pressure, and in cooperation with the detachable design of the tank cover and the mixing tank, the risk of rubber material degradation caused by long-term high shear is avoided, and the service life of the mixing tank is prolonged. The problems of non-uniform material mixing, waste and excessive abrasion between a scraping part and the tank wall are solved, and raw material addition and equipment cleaning and maintenance can be conveniently completed.

The preparation method of the intercalated hydrotalcite / phosphate esterification modified castor oil composite fatliquoring agent disclosed by the application is implemented according to the following steps: step 1, preparing Phy-LDH; and step 2, preparing the intercalated hydrotalcite / phosphate esterification modified castor oil composite fatliquoring agent. The application also discloses the intercalated hydrotalcite / phosphate esterification modified castor oil composite fatliquoring agent and application. The application uses sodium phytate intercalated hydrotalcite to expand the interlayer spacing, weaken the interlayer electrostatic effect, reduce the tendency of the sheet layer aggregation, and improve the dispersion stability of the LDH in the castor oil. Meanwhile, the castor oil is modified by phosphate esterification, and a phosphorus-containing group is introduced into the molecule, so that the phosphate esterification modified castor oil and the sodium phytate intercalated hydrotalcite can be uniformly combined to form a stable composite system. The intercalated hydrotalcite / phosphate esterification modified castor oil composite fatliquoring agent also has the functions of softening and flame retardance.

The application relates to the polishing technical field, in particular to a polishing grinding head for CNC (computer numerical control) and a preparation method and application thereof. The grinding head comprises modified cerium oxide abrasive, a resin binder and an additive. The modified cerium oxide abrasive has a core-shell structure, the inner core is a cerium oxide solid solution co-doped with zirconium and lanthanum and having oxygen vacancy enrichment, and the outer shell is an organic chelating layer anchored on the surface. In the preparation, the oxygen vacancy enrichment powder is obtained by co-precipitation and calcination, and then a polydentate ligand is grafted to form a chelating layer; then, the resin, a lubricant and the like are wet-mixed, granulated, pressed and formed, and solidified. The application improves the chemical mechanical polishing activity by means of oxygen vacancies, and enhances the interface bonding force between the abrasive and the resin by means of the chelating layer. The obtained grinding head has good wear resistance and abrasive grains are not easy to fall off, can efficiently polish materials such as optical glass and sapphire, the surface roughness of a workpiece reaches Ra 0.05-0.2 mu m, and the processing quality and efficiency are improved.

The invention discloses a porous carbon fiber paper-based membrane material and a preparation method thereof. Through swelling polymerization and hydrolysis reaction, the surface of the polymethyl methacrylate microsphere is coated with polyvinyl alcohol in situ, so that the polymethyl methacrylate microsphere is endowed with hydrophilicity. Mixing the carbon fiber, the plant fiber, the phenolic resin flocculating constituent, cationic polyacrylamide and the hydrophilic polymethyl methacrylate microspheres to obtain mixed slurry; and carrying out wet molding, hot-pressing curing and high-temperature carbonization on the slurry to prepare the porous carbon fiber paper-based membrane material. The key point of the invention lies in that hydrophilic polymethyl methacrylate microspheres are introduced as a pore-forming agent, are stably dispersed in the slurry, have high retention rate, play a temporary supporting role in a hot pressing stage, and are completely decomposed to form uniform and controllable pores in a carbonization stage. The prepared paper-based membrane material has high porosity, high gas permeability, good conductivity and mechanical strength and excellent comprehensive performance, and is especially suitable for being used as a gas diffusion layer of a proton exchange membrane fuel cell.