64results about How to "Realize large-scale mass production" patented technology

The invention relates to a selective emitter junction and tunneling oxide efficient N-type battery preparation method. The method comprises the steps of: performing texturing after removing a damaged layer of a silicon wafer, forming a boron-doped P+ emitter junction on the front surface, forming a local heavily doped region by means of laser treatment, growing an ultra-thin tunneling oxide layer and a phosphorus-doped silicon thin film on the back surface of the silicon wafer, depositing an aluminium oxide layer on the surface of the P+ emitter junction, growing a hydrogenated silicon nitride passivation antireflection layer on the front surface of the silicon wafer, and finally printing an Ag/Al slurry on the front surface of the silicon wafer. According to the selective emitter junction and tunneling oxide efficient N-type battery preparation method, a metalized ohmic contact structure of Ag or Al is formed on the back surface through metallization, low-temperature annealing is carried out by means of a drying oven, and the contact performance of electrodes is improved. Compared with the prior art, the selective emitter junction and tunneling oxide efficient N-type battery preparation method adopts the selective emitter junction on the front surface as well as the ultra-thin tunneling oxide layer (<4 nm) and the phosphorus-doped silicon thin film on the back surface, thus can significantly reduce the metal-semiconductor surface recombination on the front surface and the back surface, and has the most obvious advantage of being capable of greatly increasing electrical performance parameters on the basis of being compatible with the traditional battery manufacturing process.

The invention relates to a high resistant starch (RS3) content product prepared through autoclaving treatment and enzymatic debranching and a preparation method thereof. The product is prepared by the following method that 1, native starch and water are mixed to obtain starch suspension liquid, autoclaving treatment is performed for 5-48 minutes, and cooling treatment is performed; 2, pH is regulated and enzymatic debranching treatment is performed, or after aging treatment is performed, pH is regulated and debranching treatment is performed; 3, an obtained sample is treated through enzyme deactivation, aging, drying, powder grinding and sieving, and the high resistant starch content product is prepared. The product takes the starch as the raw materials and adopts the method of combining autoclaving treatment and enzymatic debranching, the resistant starch (RS3) content in the obtained product is above 40 percent, the resistant starch content is greatly increased, the production technology is simplified, and the production cost is lowered.

The invention discloses a preparation method of artificial stone with imitated wood grain pattern, which comprises the following steps: (1) preparing artificial stone mud materials with at least two different colors, and respectively stirring uniformly; (2) carrying out the following operations in vacuum state: i, conveying the artificial stone mud material with one color in step (1) to a tablet machine, and pressing the mud material into mud tablets by using the tablet machine; laying the artificial stone mud material with another color on the mud tablets, and pressing with the tablet machine; repeatedly laying and pressing the rest of the artificial stone mud materials by using the same method to obtain a wood grain unit mud material lamella; ii, overlapping the mud material layers, molding and pressing to obtain the artificial stone blocks; (3) curing the artificial stone blocks obtained in step ii, and cutting the artificial stone blocks in the direction capable of displaying the laminated grain structure, thereby obtaining the blank pieces; and (4) sanding and polishing the blank pieces in step (3) to obtain the artificial stone product. The product of the invention presents an imitated wood grain pattern.

The invention relates to bearing machining equipment, in particular to end surface groove machining forming equipment for bearing inner rings. The machining forming equipment comprises a base, a stand column, a supporting frame, an abrasive wheel distance adjustment mechanism, a power mechanism and a bearing inner ring feeding mechanism. The bearing inner rings are arranged in rhombus structures. A screw adjusting rolling wheel is rotated. A clockwise screw nut and an anticlockwise screw nut move outwards. The rhombus structures contract to clamp and fix the bearing inner rings. A servo motor is started and sequentially drives a worm, a worm wheel, a left-handed screw and a right-handed screw to rotate. The extension angles of first swinging arms and second swinging arms are adjusted. The distance between every two adjacent abrasive wheels is changed. A power motor is started, and the abrasive wheels rotate at high speed to carry out end surface groove machining on the bearing inner rings. The multiple bearing inner rings can be clamped in the machining forming equipment at a time, the production efficiency is high, the machining cost is low, and large-scale volume production can be realized.

A method is provided for producing a highly porous substrate. More particularly, the present invention enables fibers, such as organic, inorganic, glass, ceramic, polymer, or metal fibers, to be combined with binders and additives, and extruded, to form a porous substrate. Depending on the selection of the constituents used to form an extrudable mixture, the present invention enables substrate porosities of about 60% to about 90%, and enables process advantages at other porosities, as well. The extrudable mixture may use a wide variety of fibers and additives, and is adaptable to a wide variety of operating environments and applications. Additives can be selected that form inorganic bonds between overlapping fibers in the extruded substrate that provide enhanced strength and performance of the porous substrate in a variety of applications, such as, for example, filtration and as a host for catalytic processes, such as catalytic converters.

The invention discloses an equipment and method for preparing metallic titanium by TiCl4 vacuum glow discharging. The equipment comprises a vacuum chamber, the top of which is communicated with a gas-flow controller and a TiCl4 gasification device through a gasifying pipe, and the bottom of the vacuum chamber is communicated with a gas collector through a chlorine pipe; in the vacuum chamber, a collection electrode and an anode that are insulated from the vacuum chamber are provided; a power supply is connected with the collection electrode and the anode respectively. The method comprises: placing the gasified pure industrial TiCl4 from the gasification device into the vacuum chamber, applying DC voltage to ionize the TiCl4 so as to generate glow plasma, settling the positive Ti ions in the plasma by the electric field onto the surface of a sponge titanium-collecting electrode, and discharging the generated chlorine into the gas collector. The whole process in the invention is under vacuum state, therefore, the purity of the prepared titanium is high, the oxygen content is low, the efficiency is high, and massive production can be realized. The chlorine released in the process is collected and stored by the gas collector, so the invention has no environmental pollution.

The invention relates to a multi-degree-of-freedom micro-vibration diagnosis method and sensing terminal. Calculation and observation of settlement and displacement values are realized, and credibility analysis is carried out on the settlement and displacement values obtained by calculating data samples acquired at each acquisition time point, thereby improving the accuracy of an observation result. Through vibration detection and trigger data acquisition including acceleration data, magnetic field data, angle data, positioning data and the like, the sensors are high in collaboration, the datarelevance at the same time is high, and the dynamic change condition of an observation point can be reflected in real time. According to the invention, non-contact sensing, edge calculation, data storage, backup power supply, communication transmission, encryption chips and the like are realized, a wider acquisition frequency can be freely selected, and micro-vibration and magnetic force change can be freely sensed; and the method and the sensing terminal can be applied to different application scenes such as dangerous buildings, ancient buildings, bridges, underground pipe galleries, dams, tunnels and iron towers, and provide powerful support for disaster monitoring and early warning and forecasting in China.

The invention relates to the technical field of fine dried noodle production, and discloses an automatic control system for manual hollow fine dried noodle, which comprises a discharging control system, a conveying belt control system, a chain control system, a noodle cutting and packaging control system and a central control system. The discharging control system comprises a stirrer system, a discharging conveying belt, a water maker, a water storage tank, a water supply metering pump and a hemispherical dough kneading and fermenting device; the conveying belt control system comprises an integrated strip cutting and coiling machine system, a conveying belt system, an integrated strip twisting and coiling machine system and an intelligent operation robot system. According to the invention, intelligent equipment is used for replacing manpower, large-scale mass production can be achieved, the production process is still a fermenting stretching process substantially, production through an automatic control system is more standard, sanitary and healthy, and if automatic control production is used, the production time is short and generally needs 7-8 hours, and the adding amount of table salt is small, 24-hour of uninterrupted production can be achieved, and human health is better facilitated.

The invention relates to a crayfish soaking and cleaning machine. The crayfish soaking and cleaning machine comprises a cleaning workbench, a loading workbench, a first belly cleaning device, a secondbelly cleaning device, a soaking workbench, multiple loading plates for loading crayfishes and multiple cylinder-shaped containing cylinders for containing the crayfishes, wherein the cleaning workbench is provided with a rotating disc and a rotation driving servo motor; eight fixing clamps for detachably installing the loading plates are evenly fixed on the edge of the rotating disc; a containing workbench, a cleaning pond, an air drying cover and a soaking pond are sequentially distributed on the soaking workbench from right to left; a rail frame transversely penetrates through the air drying cover, a transverse driving lifting device capable of loading the containing cylinders to conduct transverse reciprocating rectilinear movement and driving the containing cylinders to be lifted isalso fixed on the rail frame, and grippers for grabbing or putting down the containing cylinders are fixed on the transverse driving device. By means of the crayfish soaking and cleaning machine, theprocessing production efficiency of drunken crayfishes can be improved, labor is saved, and large-scale batch production of the drunken crayfishes can be achieved.

The invention designs a polyimide diamine monomer C12-FBDA with an innovative structure. The simultaneous introduction of C12 side-chain alkyl, trifluoromethyl, an imide group and multiple benzene ring structures is realized in the molecular structure, the regularity and crystallinity of polymer molecular chains are broken through, the free volume of the polymer is increased, and the interaction between the molecular chains is reduced, so that the film-forming property and optical transparency of polyimide are greatly improved. In the aspect of C12-FBDA synthesis, the invention develops an industrially applicable C12-FBDA production process, and the process has the advantages of short synthesis route, high yield, cheap and easily available used raw materials, low production cost, simple operation, environmental friendliness, complete realization of large-scale mass production, and extremely high industrial application value.

The invention designs a polyimide diamine monomer C14-FBDA with an innovative structure. Simultaneous introduction of C14 side chain alkyl, trifluoromethyl, imide group and multiple benzene ring structures into the molecular structure is realized. According to the polyimide diamine monomer, the regularity and crystallinity of polymer molecular chains are broken through, the free volume of the polymer is increased, and the interaction between the molecular chains is reduced, so that the film-forming property and optical transparency of polyimide are greatly improved. In the aspect of C14-FBDA synthesis, the invention develops an industrially applicable C14-FBDA production process, and the process has the advantages of short synthesis route, high yield, cheap and easily available used raw materials, low production cost, simple operation, environmental friendliness, complete realization of large-scale mass production, and extremely high industrial application value.

The invention designs a polyimide diamine monomer C5-FBDA with an innovative structure. C5 side chain alkyl, trifluoromethyl, imide groups and a plurality of benzene ring structures are introduced simultaneously in the molecular structure of the polyimide diamine monomer, the regularity and crystallinity of polymer molecular chains are broken through, the free volume of the polymer is increased, the interaction between the molecular chains is reduced, and the film-forming property and optical transparency of polyimide are greatly improved. In the aspect of synthesis of C5-FBDA, the invention develops an industrially applicable production process of C5-FBDA, and the process is short in synthesis route, high in yield, cheap and easily available in used raw materials, relatively low in production cost, simple and convenient to operate, environment-friendly, capable of completely realizing large-scale mass production and extremely high in industrial application value.

The invention designs a polyimide diamine monomer C11-FBDA with an innovative structure. Simultaneous introduction of C11 side chain alkyl, trifluoromethyl and imido groups and multiple benzene ring structures is realized in the molecular structure, the regularity and crystallinity of a polymer molecular chains are broken through, the free volume of the polymer is increased, and the interaction between the molecular chains is reduced, so that the film-forming property and optical transparency of polyimide are greatly improved. In the aspect of C11-FBDA synthesis, an industrially applicable C11-FBDA production process is developed in the invention, and the process has the advantages of short synthesis route, high yield, cheap and easily available used raw materials, low production cost, simplicity in operation, environmental friendliness, complete realization of large-scale mass production, and extremely high industrial application value.