138results about How to "Short production process" patented technology

The invention discloses a preparation method of an ester polycarboxylic acid water reducer, and belongs to the technical field of concrete admixtures. The preparation method of the ester polycarboxylic acid water reducing agent comprises the following steps: under an alkaline condition, carrying out free radical polymerization reaction on a polyether macromonomer and an unsaturated carboxylic acid monomer under the action of a chain transfer agent A, a chain transfer agent B and an initiator, continuously adding a catalyst, and carrying out dehydration esterification reaction under the action of the catalyst, so as to prepare the ester polycarboxylic acid water reducing agent, the polyether macromonomer is monohydroxy polyether of which the molecular weight is between 500 and 5000; the chain transfer agent A is one of acetone, isopropanol, sodium hydrogen sulfite, sodium hypophosphite, sodium formate and the like; the chain transfer agent B is one of mercaptoethanol, mercaptopropanol, mercaptoacetic acid, mercaptopropionic acid and the like; the catalyst is a phosphonic acid compound with hydroxyl or amino. The preparation method is simple in process and low in energy consumption, and the prepared ester polycarboxylic acid water reducer product is excellent in performance.

The invention belongs to the technical field of lithium recovery, and particularly relates to a method for extracting and preparing lithium carbonate from a low-concentration lithium solution, which comprises the following steps: 1) extraction: extracting lithium ions in a water phase by using an extraction organic phase to obtain a loaded organic phase and raffinate; 2) back extraction: back-extracting the loaded organic phase by using a back-extraction water phase, and introducing CO2 gas in the back-extraction process, so that lithium ions are transferred from the loaded organic phase to the back-extraction water phase and are crystallized at the same time, and then carrying out phase separation to obtain a lithium carbonate solid; and 3) post-treatment: washing and drying the lithium carbonate solid to obtain the electronic-grade lithium carbonate ultrafine powder. According to the method, lithium-sodium separation and lithium enrichment are effectively realized by controlling extraction and back extraction conditions, meanwhile, a lithium carbonate preparation process and a back extraction process are synchronously carried out, the grain diameter of lithium carbonate is effectively regulated and controlled, a lithium carbonate product with low impurity content and fine granularity is obtained, the problem that a low-concentration lithium-containing solution is difficult to recover is solved, and the method is suitable for industrial production. The method has the advantages of high efficiency, environmental protection and low cost.

The invention belongs to the technical field of electrolytic copper foils, and relates to an additive for an ultralow-profile electrolytic copper foil, an electrolyte, a preparation process of the electrolytic copper foil, the electrolytic copper foil and application of the electrolytic copper foil. The additive comprises a brightening agent, a wetting agent and a leveling agent; the brightening agent is hexylbenzylamine salt, sodium dithiodipropane sulfonate and sodium N, N-dimethyl dithioformamide propane sulfonate; the wetting agent is hydroxyethyl cellulose and polyethylene glycol; and the leveling agent is hydrolyzed collagen. When the electrolyte containing the additive is used for preparing the copper foil, grain refinement of the raw foil and leveling of the outline are realized, and a foundation is laid for realizing the ultralow-outline electrolytic copper foil. And the design of the front section, the middle section and the rear section of the anode plate is combined, an original two-step method is replaced for producing the electrolytic copper foil, equipment is simplified, the production technological process is shortened, and the production cost of the ultra-low-profile electrolytic copper foil is greatly reduced.

The invention provides alkenyl functionalized polyarylene ether as well as a preparation method and application thereof, the preparation method of the alkenyl functionalized polyarylene ether comprises the following steps: washing a dihydroxy-terminated polyarylene ether reaction solution with an alcohol-water solution, taking an organic phase, mixing the organic phase with a catalyst and an end-capping modifier for reaction, and obtaining the alkenyl functionalized polyarylene ether. And preparing the alkenyl functionalized polyarylene ether. Compared with the prior art, the alkenyl-modified polyarylene ether has the advantages that terminal group modification is directly carried out on the double-terminal hydroxyl polyarylene ether reaction liquid washed by alcohol water, the prepared alkenyl-modified polyarylene ether has better performance, the content of active groups (double bonds) is higher and reaches 1.8-2.1 mmol / g, the residual quantity of polar small molecular substances such as monohydric phenol, dihydric phenol, quinone and amine is lower, the curing and crosslinking density with other resins is higher, and the curing and crosslinking performance is better. And the prepared copper-clad plate has better thermal performance and electrical performance.

The invention discloses a production method of low-temperature container steel 06Ni7DR with the thickness of 10-100 mm. The steel plate comprises the following chemical components in percentage by mass (wt%): 0.04-0.07% of C, 0.4-0.7% of Mn, 0.05-0.30% of Si, less than or equal to 0.008% of P, less than or equal to 0.003% of S, 6.5-7.5% of Ni, less than or equal to 0.03% of Nb, less than or equal to 0.01% of V, less than or equal to 0.50% of Cr, less than or equal to 0.10% of Mo and the balance of Fe and inevitable impurities. A low C + Ni and Mo alloying component system is adopted, rolling, controlled cooling, stack cooling, subcritical quenching and tempering heat treatment are carried out, the obtained low-temperature container steel 06Ni7DR with the thickness being 10-100 mm is obtained, the yield strength is larger than or equal to 560 MPa, the tensile strength is 680-820 MPa, and the low-temperature impact energy at the temperature of-196 DEG C is larger than or equal to 100 J. On the premise that the alloy cost is reduced, the process design is reasonable, and the requirement of low-temperature container steel which is stable and reliable in performance and completely meets the requirement can be obtained by adopting a short production process.

The invention belongs to the field of composite materials, and particularly discloses a magnesium-based composite material and a preparation method and application thereof.The preparation method comprises the following steps that S1, magnesium-based alloy particles are heated to be in a semi-solid state, then the magnesium-based alloy particles are mixed with metal reinforced particles, and semi-solid mixed slurry is obtained; and S2, the semi-solid mixed slurry is subjected to pressurized extrusion molding, and the magnesium-based composite material is prepared. According to the preparation method, the metal reinforced particles and the semi-solid magnesium-based alloy slurry are mixed, extrusion molding is conducted under pressurization, continuous production can be achieved through the whole preparation method, the production process is short, the efficiency is high, meanwhile, a semi-solid extrusion method is adopted, and the production cost is low. The prepared magnesium-based composite material has the advantages of compactness, no loose defect, uniform distribution of metal reinforced particles, high mechanical strength and the like.

The invention relates to a circuit board solder mask hole plugging method, which comprises the following steps: S1, manufacturing a hole plugging bottom plate and a hole plugging screen, and processing the corresponding hole plugging bottom plate and hole plugging screen according to the size and position of a to-be-plugged hole in a circuit board; s2, coating ink for the first time, placing a circuit board between the plug hole bottom plate and the plug hole screen printing plate, and coating the ink into the to-be-plugged hole from the plug hole screen printing plate; s3, ink pressing is conducted, specifically, the ink is further extruded into the to-be-plugged hole, and the ink sinks to the lower portion in the to-be-plugged hole; s4, the ink is coated for the second time, specifically, the ink is coated to the upper portion of the interior of the to-be-plugged hole from the hole plugging screen so as to completely fill the to-be-plugged hole; and S5, returning the printing ink, and scraping redundant printing ink. According to the invention, only the same surface of the circuit board needs to be plugged, and the to-be-plugged hole can be plugged at one time through one-time screen printing without residual bubbles, so that the production process is shortened, and the hidden danger of quality failure caused by poor hole plugging quality is effectively avoided.

The invention belongs to the technical field of permanent magnet production, particularly relates to the field of small-size neodymium iron boron permanent magnet production, and particularly relates to a high-performance thermal deformation permanent magnet and a preparation method. The magnet with the small overall dimension is manufactured in a powder extrusion mode, and the cross sectional area of the magnet can be as small as 25 mm < 2 >; one-time forming is achieved in a hot extrusion mode, the overall production process is short, and the problem that a thin and long mandrel forming an inner hole in an existing scheme is prone to damage is solved. The magnet produced by the invention has higher performance, and the magnetic field intensity of the circumferential surface is uniformly distributed after multi-pole magnetization. The number of poles reaches up to more than 20, the anisotropic field of the neodymium-iron-boron magnet at a higher temperature is reduced by heating during magnetizing, and higher magnetizing body performance can be obtained more easily under the condition that the magnetizing magnetic field intensity is limited due to the size. According to the technical scheme, in the structure of the prepared radial magnetic field magnet, the inter-pole difference does not exceed 10%, and the residual magnetism of the magnet is not lower than 10 kGs.

The invention provides a neodymium-iron-boron permanent magnet and a composite anti-corrosion coating, a preparation method and application thereof, the composite anti-corrosion coating comprises polydimethylsiloxane, a curing agent and a nano component, the anti-corrosion coating has higher resistivity and better insulativity, has excellent mechanical property and anti-corrosion performance, and can be applied to the field of permanent magnets. Batch spraying can be realized by adopting a high-pressure spraying method, and the method is suitable for industrial production.

The invention belongs to the technical field of building materials, and particularly relates to high-strength porous ceramsite and a preparation method thereof. The high-strength porous ceramsite is prepared from the following raw materials in parts by weight: 30 to 50 parts of secondary aluminum ash, 20 to 40 parts of electroplating sludge, 5 to 10 parts of fly ash, 10 to 20 parts of bentonite, 5 to 10 parts of fluxing agent and 5 to 10 parts of binder, the preparation method comprises the following steps: (1) uniformly mixing secondary aluminum ash, electroplating sludge, fly ash and bentonite, spraying water, continuously stirring, adding a fluxing agent and a binder, uniformly stirring, and aging; and (2) feeding the aged material into a rotary kiln through a screw conveyor, drying, granulating, sintering, and finally cooling. The secondary aluminum ash and the electroplating sludge are taken as main components, and are combined with the fly ash, the bentonite and other auxiliaries, so that the porous ceramsite with relatively high strength is finally obtained.

The present invention discloses a mask machine, and relates to the technical field of mask production. It includes an installation bottom shell, a storage mechanism and a cutting mechanism are respectively installed at the bottom of the installation bottom shell, the storage mechanism is located on the back of the cutting mechanism, and a protective cover that can move up and down is slidably connected to the top of the installation bottom shell, and a replacement core is filled inside the storage mechanism, and the replacement core includes a rolled mask body, and the mask body is divided into an inner and outer surface, and elastic ropes are respectively arranged on both sides of the inner surface of the mask body. The present invention changes the production process of traditional mask production by arranging a replacement core, and only needs to complete the production of the replacement core without pre-hot pressing and cutting the mask, and the overall packaging, and the user can hot press and cut according to the use needs, so as to shorten the entire mask production process, thereby reducing the demand for equipment and workers in production, simplifying the entire mask production process in a way of simplifying the product, thereby improving production efficiency and reducing the investment cost of labor and equipment.

The invention discloses a method for purifying pilin Fim < 2 > / 3 without pertussis component antigen residue. Specifically, pertussis thalli are subjected to heat extraction treatment and then subjected to salting-out, anion exchange and cation exchange to obtain a crude product, and the high-purity pertussis pilin Fim2 / 3 without residues such as pertussis toxin PT, pertussis filamentous hemagglutinin FHA and pertussis adhesin PRN is obtained after multi-mode anion composite chromatography. The pertussis mycoprotein Fim < 2 > / 3 prepared by the method has high biological safety due to high purity, for a component pertussis vaccine taking the pertussis mycoprotein Fim < 2 > / 3 as a new component, a detoxification process which must be adopted due to residues of pertussis toxin PT and the like is avoided, the production process of the component pertussis vaccine is reduced, and the production cost is reduced. The utilization rate of the pertussis pilin Fim2 / 3 and the production and preparation efficiency of the component pertussis vaccine are improved.

The invention belongs to the technical field of PA66 nylon heat insulation strip production, and discloses PA66 nylon heat insulation strip production equipment which comprises a die head and an extrusion part, the right end of the die head is rotationally provided with a rotating distribution assembly, and the inner side face of the rotating distribution assembly is fixedly provided with a cooling assembly. By completing rapid cooling, impact pressure generated by direct injection type cooling water flow on the surface of a formed product is effectively avoided, a large amount of cooling water covering the outer side of the formed product is sputtered, and after impact energy is weakened, comprehensive, safe and efficient cooling treatment is conducted on the formed product in a direct and indirect cooperation mode; the extrusion cooling and curing speed of the formed product is improved, the arc-shaped frame rotating rapidly surrounds the outer side of the formed product, dynamic supporting is achieved on the extruded product, bending deformation caused by gravity during extrusion is avoided, the quality during extrusion cooling and forming is further improved, it is guaranteed that strip-shaped PA66 subjected to extrusion forming maintains straightness, and the forming quality is comprehensively improved.

The invention belongs to the technical field of textile printing and dyeing, and particularly relates to a dyeing method of meta-aramid yarn. The dyeing method of the meta-aramid yarn comprises the following steps: dissolving an S-type or SE-type disperse dye and a dispersing agent in water to prepare a dye solution; in the meta-aramid yarn winding process, a single yarn is completely immersed in the dye liquor for contact, saturated adsorption is performed, and the meta-aramid yarn is wound into a loose cone yarn; carrying out high-temperature steaming fixation; the color-fixed cone yarn is put into a cone yarn dyeing machine to be subjected to reduction cleaning and normal-temperature water washing, the water-washed cone yarn is dehydrated and dried, dyed meta-aramid yarn is obtained, the dark color variety is subjected to redyeing through the dried yarn, and then the dyed meta-aramid yarn is obtained through steaming color fixing and aftertreatment. A disperse dye adopted for redyeing is an E-type disperse dye. The dyeing method of the meta-aramid yarn provided by the invention is low in cost, simple to operate, environment-friendly and high in production efficiency under the condition of normal temperature.

This invention relates to a tandem solar cell, its fabrication method, and its application. The tandem solar cell comprises a top layer of perovskite cells and a bottom layer of back contact cells stacked sequentially from top to bottom. The perovskite cells include a front glass layer, a first passivation layer, a perovskite composite layer, and a second passivation layer stacked sequentially from top to bottom. The perovskite composite layer includes at least two polar perovskite regions and perovskite electrodes disposed on both sides of each polar perovskite region in a first direction. The back contact cells include a back glass layer, a back electrode layer, and a crystalline silicon layer stacked sequentially from bottom to top. In the solar cell provided by this invention, the perovskite composite layer of the perovskite cell is designed with a specific structure using polar perovskite and perovskite electrodes to form a built-in electric field, driving the directional movement of electron-hole pairs to generate current. Combined with the introduction of the back contact cells, more solar radiation is received, thus improving the performance of the tandem solar cell.

The application discloses a surface-defect-free high-purity oxygen-free copper wire manufacturing method based on continuous extrusion, relates to the field of non-ferrous metal precision machining technology, and directly adopts an up-drawing continuous casting billet to extrude a target specification wire rod in one step through continuous extrusion, so that a plurality of drawing processes and at least one intermediate annealing process in a traditional process are completely omitted, a process flow is compressed by more than 60%, a production cycle is significantly shortened, equipment investment, labor cost and energy consumption loss are reduced, wire rod production efficiency is greatly improved, large-scale production cost is greatly reduced, and the application has a strong industrialization advantage; the continuous extrusion process introduces large plastic deformation, can strongly break original as-cast coarse grains, and simultaneously compacts and eliminates internal defects such as pores and shrinkage porosity generated in the up-drawing continuous casting process, and improves wire rod density. Compared with a traditional processing method, the wire rod prepared by the application avoids problems such as annealing oxidation, uneven structure and performance fluctuation, and the elongation of a finished product is greater than or equal to 40%.

The present application belongs to the field of non-ferrous metal dressing process, and relates to a grinding-flotation short process separation method for processing fine molybdenite. The process uses a high-pressure roller mill and a tower mill crushing and grinding process to replace the fine crushing and two-stage continuous ball milling operation in the traditional crushing and grinding process, and uses a flotation column to replace a flotation machine for flotation operation, thereby simplifying the production process flow of molybdenite. The present application has the advantages that the high-pressure roller mill and the tower mill change the crushing and grinding mode of the ore, significantly reduce the crushing and grinding energy consumption, and more effectively protect the flaky structure of molybdenite. The particle size distribution of the grinding product is reasonable, and the amount of fine and micro-fine particles (-20 μm) is reduced, thereby creating good conditions for the flotation operation. The flotation column is used for flotation, compared with the flotation machine, the recycling of middling slurry is reduced, the fine molybdenite that has been dissociated is fully recovered, and the recovery rate of molybdenite is improved. In addition, the flotation column flotation is beneficial to obtaining high-grade concentrate product, and improves the separation index and economic benefits of molybdenite.

The application discloses a preparation method, product and device of a square core optical fiber preform. The preparation method comprises the following steps: (1) making the rotating central axis of a Leilo triangular drill bit coaxial with the geometric central axis of a circular cavity cladding sleeve, and drilling a rounded square with the width d as the side length by using the Leilo triangular drill bit to obtain a square cavity cladding sleeve; (2) sleeving a square core rod with the width d' into the square cavity cladding sleeve, and stretching or fusing the square core rod into a circular solid rod; and (3) manufacturing the square core optical fiber preform according to the designed shape size and refractive index profile. The Leilo triangular drill bit is designed according to the width fixing principle of the Leilo triangular structure, and can be used for square hole processing of brittle materials such as quartz glass. The optical fiber prepared by using the square core rod and the square hole sleeve combination drawing reduces the probability of uncontrollable core-cladding interface air line occurrence caused by the original square core rod and circular sleeve combination drawing, and guarantees the reliability of the optical fiber.

The present invention provides a drilling fixture for the support hole of a rotating shaft assembly, wherein the rotating shaft assembly comprises a rotating shaft, bearing supports are respectively installed at the left and right ends of the rotating shaft, a shaft seat plate is arranged on the outer circumferential surface of the rotating shaft, seat holes are respectively arranged on the left and right sides of the shaft seat plate, the drilling fixture comprises a template, a top column and a limiting column, a drill sleeve is embedded in the template, one end of the top column is fixedly connected to the template, the other end of the top column is fixedly connected to the workbench of a drilling machine, a supporting column is also fixedly connected to the template, one end of the limiting column is hinged to the supporting column, the other end of the limiting column is threadedly connected with a limiting nut and a locking nut after passing through the seat hole, and a pressure plate is clamped between the limiting nut and the locking nut. The technical solution of the present invention is adopted, and the seat hole preset on the rotating shaft assembly is used as a positioning reference, so as to realize the rapid clamping of the rotating shaft assembly, limit the freedom of movement of the rotating shaft assembly in multiple directions, lay a foundation for improving the drilling processing accuracy, and improve production efficiency.

The invention discloses an internal insulation steel pipe special cable and a four-groove roller reducing mill thereof, and relates to the technical field of cables, the cable comprises a steel pipe layer and convex ribs integrally processed on the outer surface of the steel pipe layer; the reducing mill comprises a fixing ring; the rolling assembly is rotationally installed in the fixing ring, the rolling assembly comprises a rotating ring and four rollers distributed in the rotating ring in a surrounding mode, and a gap used for extruding a steel pipe layer of the cable to form a convex rib is formed between every two adjacent rollers; and the driving assembly is used for driving the rolling assembly to rotate in the fixing ring so as to form a convex rib which extends in the axial direction and is of a linear structure or a spiral structure on the surface of the cable. According to the invention, through the relation between the revolution speed of the roller and the advancing speed of the cable, the convex ribs with axial linear structures or the convex ribs with different leads and spiral structures can be flexibly processed, the torsional strength, the heat dissipation efficiency and the installation guidance quality of the special cable in different laying environments are improved, and the customization requirements of high-end markets are met.

The present invention relates to the field of protective slag technology, and in particular to a protective slag and a granulating device thereof for solving the slag inclusion problem of 310 steel grades. The protective slag is a hollow spherical particle with a particle size of 0.2mm-0.5mm. The raw materials of the protective slag include 6%-10% soda ash, 7%-11% fluorite, 6%-10% bauxite, 5%-12% B2O3, 3%-5% MnO, 2%-4% carbon black, 1%-3% MgO, and the rest are magnesium slag, heavy calcium powder, and wollastonite. The slag basicity is 1.2-1.5 in terms of CaO / SiO2, and the viscosity is 0.12-0.15 Pa·s at 1300°C. The particle size of carbon black is 500 nanometers-5 microns, and the particle size of other raw materials is 45 microns-55 microns. The carbon black is coated on the outside of other raw materials and evenly distributed in each hollow spherical particle. The protective slag is used for 310 steel grades to reduce the occurrence of slag inclusion problems.

The invention discloses a method for manufacturing long and short golden fingers through local gold plating, which comprises the following steps of: manufacturing an outer-layer circuit and a plurality of golden finger bodies on a production board through a negative film process, and enabling all the golden finger bodies to have the same length and extend outwards to be connected with a board edge copper layer; carrying out silk-screen printing of anti-gold plating ink on the production board, and windowing at the position, corresponding to local gold plating, of each golden finger body; pasting a film on the production board, and windowing at a position corresponding to local gold plating; the production board is sequentially subjected to nickel gold electroplating and thick gold electroplating treatment; removing the film and removing the gold plating resistant ink; a film is pasted on the production board, windowing is carried out on the position, corresponding to the non-local gold plating position, in the golden finger body, and then the copper layer at the extending length part in the golden finger body is removed through alkaline etching, so that the long and short golden fingers are formed. According to the method, the production process is reduced, the labor cost and the material cost are reduced, the product quality of the local gold plating plate can be improved, and the product yield is improved.

This invention relates to the field of insulating aluminum busbar technology, and in particular to an insulating aluminum busbar for high-voltage connection in a power battery system, its preparation method, and its application. An insulating aluminum busbar for high-voltage connection in a power battery system includes: a three-dimensionally bent aluminum alloy substrate; a ceramic insulating layer, which covers the outer surface of the three-dimensionally bent aluminum alloy substrate and is metallurgically bonded to it; and two conductive ends, which are located at both ends of the three-dimensionally bent aluminum alloy substrate, with a nickel sheet fixedly connected to each conductive end and covered with a heat-shrink tubing. This application achieves metallurgical bonding between the ceramic insulating layer and the aluminum substrate, resulting in extremely strong bonding and solving the problem of coating peeling. The two conductive ends located at both ends of the substrate ensure the conductivity of the high-voltage connection and provide secondary protection for the welded area through the heat-shrink tubing, improving connection reliability.

The invention discloses a Bluetooth tire pressure sensor learning method and device, and relates to the field of tire pressure monitoring, and the method comprises the steps: tire pressure sensors on front and rear wheels of an electric vehicle periodically broadcast common messages to the outside; the user side generates an authentication message related to the tire pressure sensor to be learned according to the broadcast signal strength of the front and rear tire pressure sensors, and transmits the authentication message to the vehicle side center controller; and the vehicle end central controller determines the position and the identity of the current tire pressure sensor to be learned based on the received authentication message, receives a common message broadcasted by the tire pressure sensor to be learned, and analyzes the common message to obtain tire pressure and tire temperature information of the corresponding wheel. According to the method, the power consumption of the tire pressure sensor can be effectively reduced, the service life is prolonged, the operation difficulty and operation time of learning pairing are effectively reduced, and the production efficiency is improved.

The invention relates to a manufacturing method of a split flexible gear, which is applied to the field of welding and comprises the following steps: respectively manufacturing a cup body and a flange plate; putting the cup body and the flange plate into cleaning equipment, and performing surface treatment on the cup body and the flange plate; the cup body is assembled on the flange plate to form a workpiece; a brazing filler metal and a stop-off agent are placed on the lap joint face between the cup body and the flange plate; the whole workpiece is put into a vacuum brazing furnace, and a vacuum system is started to vacuumize the interior of the vacuum brazing furnace; and the temperature in the vacuum brazing furnace is increased to the target brazing temperature. The mode of integrally machining the flexible gear through a complex deep-cavity thin-wall part in the prior art is optimized and decomposed into two relatively simple parts to be welded and machined, the production process is optimized and shortened while raw materials are saved, a heat affected zone can be greatly reduced through vacuum brazing, and the production quality and the production efficiency of the flexible gear are improved.

The utility model relates to a bottle plug pressing device which comprises a conveying belt, a hydraulic cylinder, a base, first clamps symmetrically and fixedly arranged on the conveying belt, bottles arranged on the conveying belt and limited by the first clamps, a pressing mechanism arranged on the hydraulic cylinder and a second clamping mechanism arranged on the base. The pressing mechanism comprises a connecting plate fixedly arranged on the hydraulic cylinder, a bottle cap mounting assembly arranged on the connecting plate, a first rubber plug mounting assembly arranged on the connecting plate and a second rubber plug mounting assembly arranged on the connecting plate. The rubber plug and the bottle cap are installed at the same time by arranging the pressing mechanism, multiple machines are not needed, multiple persons are not needed to place the rubber plug and the bottle cap, the production process is shortened, and the production efficiency is improved.

The present invention discloses a laser coding system for a filling production line, including a rotary capping machine, a laser coding device and a detection device, wherein the rotary capping machine includes a rotating wheel, a conveyor belt partially arranged on the rotating wheel, and the conveyor belt conveys products as the rotating wheel rotates; the rotary capping machine is provided with a clamping device for clamping a single product conveyed on the conveyor belt, and the clamping device rotates synchronously with the rotating wheel; the laser coding device includes a laser lens for laser coding the product, and the position of the laser lens is adjustable; the detection device includes a detection unit for detecting the clamping device, and the detection unit is fixedly arranged on the rotary capping machine and electrically connected to the laser lens. The present invention overcomes the problem of poor coding quality in traditional technology by cleverly arranging a laser coding device, while improving the production efficiency of the enterprise.

The utility model relates to a device that dispels water droplets on the surface of product after cleaning, including air -dry storehouse, drying storehouse, the drying storehouse is located the rear end of air -dry storehouse, the air -dry storehouse includes frame, the inside installation of frame has the conveying roller of parallel arrangement of multiple, the bottom of conveying roller is provided with the water collecting groove, the water collecting groove is fixed on the frame, the upside of conveying roller is provided with the air pipe support, the air pipe support is fixed on the frame, the air pipe support is fixed with multiple air pipes, the lower extreme of air pipe is connected with the nozzle, the utility model effectively reduces production process flow, reduces manual operation cost, improves cleaning efficiency, and the cleaning effect is good, and the product qualified rate is high, avoids the high -intensity operation of staff.

The present invention provides a method for preparing D2 steel bars and wires by an arc continuous casting and rolling process, and belongs to the technical field of continuous casting and rolling of cold working die steel. The present invention melts, refines and degasses the raw materials for preparing D2 steel to obtain molten steel; the molten steel enters the continuous casting tundish, and a covering agent is added to the molten steel; the molten steel in the continuous casting tundish enters the crystallizer for solidification, and a continuous casting billet is continuously pulled out by continuous casting; the continuous casting billet is sequentially subjected to a first annealing, a continuous rolling and a second annealing to obtain D2 steel bars and wires. The present invention adopts a continuous casting + continuous rolling process to refine the thickness of the eutectic carbide network and improve the uneven distribution of eutectic carbides; at the same time, the macroscopic segregation of the steel billet is reduced, and the uniformity of the organization is improved. The obtained D2 steel bars and wires have an excellent low-magnification organization level, and have good service performance and service life. At the same time, the present invention adopts a continuous casting + continuous rolling process to prepare D2 steel bars and wires with a short production process, which can save production procedures, save energy and reduce consumption, and reduce costs and increase efficiency.

This invention relates to the field of beer production technology and discloses a mixing device and process for beer production. The device includes a tank with an upper water pipe and a lower liquid pipe at its upper and lower ends, respectively. The side wall of the tank has inlet and outlet ports. An internal filter screen is installed inside the tank. The tank also contains a stirring shaft, a rotating ring, a vertical rod, an anchor-shaped paddle, and a tillering paddle. The stirring shaft is rotatably mounted inside the tank. This mixing device, through the arrangement of the stirring shaft, rotating ring, vertical rod, anchor-shaped paddle, and tillering paddle, and in conjunction with a lifting control mechanism, achieves synchronous reverse lifting and lowering movements of the anchor-shaped paddle and the tillering paddle. This eliminates the need to transfer the mash and malt between the mashing tank and the filter tank, thus completing the integrated mashing and malt washing process. This effectively shortens the production process, reduces equipment footprint, avoids heat loss and material residue during wort transfer, improves raw material utilization and production efficiency, reduces the risk of microbial contamination, and ultimately ensures the quality of the produced beer.