1037 results about "Molten state" patented technology

The invention relates to the technical field of solid-state batteries, in particular to oxyhalide solid-state electrolyte as well as a preparation method and application thereof. The method comprises the following steps: taking molten salt LiaMbXc as a raw material, reacting with an oxide AdOf in a molten state, removing steam impurities by utilizing a high-temperature vacuumizing mode, and cooling to prepare the oxyhalide solid electrolyte; according to the invention, the molten salt raw material is molten at high temperature to form the ion melt, and the oxygen element is introduced to replace part of halogen, so that the hardness of the target electrolyte is reduced after cooling, the deformability at room temperature is improved, and the obtained electrolyte is high in conductivity and wide in antioxidant electrochemical window. The prepared oxyhalide solid electrolyte is used for preparing a positive electrode, the adhesion force between the electrolyte and positive electrode material particles, the actual microscopic contact area and the ion migration rate are improved through melt permeation, the problem of a positive electrode interface is effectively relieved, and the electrochemical performance of an all-solid-state battery is improved.

The embodiment of the invention relates to the field of radioactive waste treatment, in particular to material treatment equipment and curing equipment. According to the material treatment equipment provided by the embodiment of the invention, the powdery material in the material accommodating device is converted into a partially molten state through the material treatment device, and the partially molten material is converted into the solid material through the pressurizing device, so that the powdery material can undergo conversion of different states in the material accommodating device; therefore, powdery materials are converted into solid materials convenient to transfer and process, the operation of replacing a container is omitted, and material processing procedures are saved. According to the curing equipment provided by the embodiment of the invention, the sealing device is used for sealing the material treatment equipment, so that the state transition process of the powdery material has better sealing performance and stability, and the stable quality of the produced solid material is ensured.

The invention discloses a waste alkali liquor incineration treatment and energy recovery system for a propylene epoxidation device, and belongs to the field of energy conservation and environmental protection. Sodium salt in a molten state formed in the incineration process is fully cooled and dried into a solid state through a cold fluid mixing and membrane wall heat transfer coupling cooling technology, solid alkaline residues and alkaline ash formed in the cooling process are captured and conveyed in a closed mode through a sodium salt dispersing and collecting method, energy recovery of incineration heat release is achieved through a multi-effect heat exchange network, and the energy recovery efficiency is improved. By means of the system and method, up-to-standard emission of smoke generated in the incineration process is achieved.

The invention relates to the technical field of plastic recovery, in particular to waste plastic recovery granulation equipment which comprises a screw extruder, a mounting cover is fixedly mounted at the right end of the screw extruder, discharge ports are formed in the positions, corresponding to die orifices of the screw extruder, of the right end of the mounting cover, and a guide unit is mounted in the mounting cover; a pre-cooling unit is mounted at the right end of the screw extruder and is positioned in the mounting cover; the plastic strip pre-cooling forming device is used for recycling waste plastic, extruded plastic strips in a molten state can be uniformly pre-cooled and formed, the problems that the plastic strips crack or plastic particles obtained after particle cutting are irregular in shape and the like are solved, the quality of the produced plastic particles is ensured, and the production efficiency is improved. And meanwhile, extruded plastic strips in a molten state can be guided, drooping deformation of the plastic strips under the action of gravity is prevented, the sizes of the plastic strips in the axial direction are consistent, and then it is guaranteed that the sizes of plastic particles produced subsequently are uniform.

The invention relates to the technical field of aluminum melting furnaces, in particular to an aluminum ingot melting device which comprises a gas system and a melting system. The fuel gas system comprises a first gas cylinder, and compressed natural gas is contained in the first gas cylinder. The melting system comprises a melting furnace, the melting furnace is provided with a melting space, and a plurality of first combustion ports are formed in the side wall, corresponding to the melting space, of the melting furnace; when the aluminum ingot melting device works, an aluminum ingot in the melting space is rapidly heated to a first temperature, the aluminum ingot is in an unmelted state when the first temperature is reached, and after the first temperature is reached, unburnt compressed natural gas is directly blown to the aluminum ingot through the first burning port, so that the aluminum ingot is cooled and cracked or an oxide layer is cracked; after cooling for a preset time, heating the aluminum ingot with the cracked surface until the aluminum ingot is molten; according to the method, the aluminum ingot is rapidly heated to the non-molten state, then through rapid cooling and thermal expansion and cold contraction, an oxide layer is cracked or broken, the aluminum ingot is cracked and even broken, and the heating effect is improved through reduction of a subsequent heating oxide film or increase of the contact area.

The invention provides a lithium manganese iron phosphate positive electrode material and a preparation method and application thereof. The method comprises the following steps: mixing manganese metal and iron metal, heating, melting and uniformly mixing in an inert gas atmosphere, and grinding into powder; adding an ammonium salt solution, continuously adding the ground manganese-iron alloy powder under heating to form a suspension, introducing compressed air and stirring, reacting, filtering, washing, drying, crushing and grinding to obtain a manganese-iron oxide precursor, feeding the manganese-iron oxide precursor, a lithium source, a phosphorus source and doped metal elements into pure water, adding a carbon source, mixing to form a suspension, and grinding and drying to obtain the lithium-phosphorus-doped manganese-iron composite material. And carrying out carbon thermal reduction in an inert gas atmosphere, and crushing to obtain the lithium manganese iron phosphate positive electrode material. The ferromanganese oxide precursor prepared by heating the metal manganese and the metal iron to a molten state and mixing the metal manganese and the metal iron realizes uniform dispersion of the manganese and the iron at an atomic level, avoids the problems of nonuniform mixing of the manganese and the iron and dissolution of the manganese, and improves the conductivity and the electrochemical performance of the material.

The invention relates to the technical field of zero-crystallization silicon quartz stone production, in particular to an artificial environment-friendly zero-crystallization silicon quartz stone forming process and manufacturing equipment thereof. The invention discloses a forming process of artificial environment-friendly zero-crystalline silicon quartz stone. The forming process comprises the following steps: heating silica-containing quartz sand and quartz powder to a molten state (gt); then adding glass sand and glass powder, completely melting the glass sand and the glass powder, conveying the glass sand and the glass powder into a cooling kettle, rapidly cooling the glass sand and the glass powder so as to destroy a crystal structure to generate an amorphous quartz block, grinding the amorphous quartz block into amorphous quartz powder and / or sand by utilizing a grinding kettle, mixing the amorphous quartz powder and / or sand with unsaturated resin, a curing agent, a dispersing agent, a coupling agent and water, pressing and curing to obtain a finished product. The artificial environment-friendly zero-crystal silicon quartz stone is obtained, so that silicosis caused by inhalation of silicon dioxide dust by workers in the processing process of the quartz stone plate is effectively reduced.

The invention discloses fluoride salt-free and nitrate-free low-temperature matte glaze for steel plate enamel as well as a preparation method and application of the low-temperature matte glaze, and belongs to the technical field of enamel. The matte glaze is prepared from quartz, borax pentahydrate, sodium carbonate, titanium dioxide, magnesium oxide, monopotassium phosphate, calcium carbonate, zinc oxide, magnesium carbonate, lithium carbonate, aluminum oxide and zirconium silicate according to a specific mass ratio. The preparation method comprises the following steps: mixing the raw materials, melting at 1300 + / -10 DEG C in a pure oxygen environment, and quenching after wiredrawing to detect a molten state. The matte glaze completely avoids the use of fluoride salt and nitrate, the problems of fluoride emission and environmental protection equipment blockage are eliminated from the source, the fluorine content of the product is not detected through detection, and the limit value requirements of European Union REACH regulations are met. Zinc oxide and ZnO / TiO2 are added, so that the liquid phase viscosity is reduced, ion diffusion is accelerated, and the opacity (opacification performance) and gloss of the porcelain glaze are enhanced.

A method for manufacturing a lithium disilicate glass ceramic with gradient properties by using photocuring additive manufacturing, the method comprising: performing wet mixing on a basic glass powder with a solvent, ball milling same until uniformity, drying same, then performing thermal treatment to reach a molten state, then quenching same to form original particles, and then granulating same to obtain lithium disilicate ceramic particles; respectively preparing n groups of pastes with gradually-changing colors and translucencies from n groups of the lithium disilicate ceramic particles, said paste preparation comprising: adding 3Y-TZP powder, a coloring agent and lithium disilicate ceramic particles to a resin mixture, mixing same, rolling same and performing vacuum defoaming to obtain a paste; adding the n groups of pastes in sequence into an additive manufacturing device to undergo photocuring forming, so as to obtain a green body; after the green body is cleaned and dried, degreasing the green body, and sintering same; and finally under a vacuum high-temperature condition, subjecting the sintered sample to an ion exchange reaction with a molten nitrate in a flowing state, so as to obtain a product.

The invention discloses a novel laser thermal spraying gun, and belongs to the technical field of laser additive manufacturing, the novel laser thermal spraying gun comprises a connecting seat, an air knife assembly, an inner nozzle, an outer nozzle, a cooling sleeve cover plate and a cooling sleeve, the outer nozzle comprises a powder feeding body and a Laval pipe, and a diffusion hole is formed in the Laval pipe; the Rafael nozzle accelerates air flow through a gradually-shrinking-gradually-expanding structure, a high-speed and high-temperature jet flow environment is formed, powder is fully preheated and evenly dispersed before reaching a base body, the Rafael pipe and laser spraying are combined, the advantages of the laser cladding technology and the thermal spraying technology are combined, the acceleration effect of Rafael air flow is overlaid, and the thermal spraying effect of the laser cladding technology and the thermal spraying technology is improved. Under the action of high-temperature and high-pressure air flow, the powder is in full contact with a laser heat source in a flying distance long enough through a Laval nozzle, so that the powder and a matrix form metallurgical bonding in a molten state, the bonding strength can be 2-3 times that of traditional thermal spraying, and the powder is suitable for the limited space environment of water erosion protection and repair of the steam turbine blade.

The invention discloses a preparation method of a high-modulus Mg-Al-RE alloy with an Al2RE phase uniformly distributed, which comprises the following steps: 1) melting other magnesium alloy components except a high-purity aluminum component into a magnesium liquid state to obtain a molten magnesium liquid; (2) adding high-purity aluminum to the surface of the molten magnesium liquid in the step (1), pressing, stirring and melting to obtain a molten magnesium alloy; and (3) the molten magnesium alloy is rapidly cooled. The aluminum particles are added after the other magnesium alloy raw materials are melted, so that high-modulus Al-RE phase sedimentation of the magnesium alloy raw materials in the melting process is effectively avoided; besides, after the aluminum particles are put, the aluminum particles are slowly pressed down, the melt state is observed all the time, after the whole melt enters the white bright state, the melt is slightly stirred, then a stirring rod is pulled away, rapid water cooling is conducted, the melt heat preservation time is greatly shortened, and therefore sedimentation of a high-modulus Al-RE phase is reduced; and finally, the high-modulus Mg-Al-RE alloy with the high-modulus Al-RE phase uniformly distributed in the gravity direction is obtained.

The invention discloses continuous melt impregnation equipment based on dynamic pressure regulation, which comprises a rack, a fiber band cleaning mechanism and an impregnation mechanism are arranged in the rack, the fiber band cleaning mechanism comprises a driving assembly and two height adjusting assemblies, and the impregnation mechanism comprises a melt bath tank used for accommodating matrix resin in a molten state, the device comprises at least one heating device and at least one resin temperature sensor. The invention relates to the technical field of fiber compounding. According to the continuous melt impregnation equipment based on dynamic pressure adjustment, a precise servo linear actuator is combined with a force sensor and a displacement sensor, so that an impregnation pressure adjusting mechanism with high response and high precision is formed. The mechanism can adjust a roller gap with micron-level precision and respond to a control instruction with millisecond-level response speed, so that the real-time performance and accuracy of impregnation pressure adjustment are ensured, and the system can change according to different fiber bundle characteristics and resin viscosity.

The invention discloses a gradient pressing and pore interlocking titanium-aluminum composite profile preparation method which comprises the following steps: S1, density differential pressing of titanium powder, unequal-thickness powder filling is carried out in a cavity, and a gradient density titanium material layer is formed through pressing; s2, primary sintering is conducted, specifically, the titanium material layer with the gradient density in the step S1 is sintered; s3, aluminum powder is pressed, specifically, aluminum alloy powder is added into the mold for secondary pressing compounding to form an aluminum material layer, and the aluminum powder permeates to the surface of the loose layer; and S4, secondary sintering permeation enhancement is carried out, vacuum sintering and pressure sintering are carried out, the aluminum material layer is in a semi-molten state in the sintering process, and on the basis of the capillary action principle, the aluminum material permeates and fills pores in the loose layer to form pore interlocking. The gradient structure with the compact outer side and the porous inner side is formed on the titanium layer through an unequal-thickness mold and step-by-step pressing, directional pores preset in the porous layer provide channels for aluminum permeation, and the permeation depth reaches 150 microns and is increased by three times compared with a conventional process.

A method for treating hazardous waste using a coal-based short-process system belongs to the field of hazardous waste treatment technology. The method of the present invention first performs deep reduction on the material, then uses a coal-based lance to generate heat in a molten bath to heat the material to a molten state, and then uses electrodes to heat the melt to separate the slag and matte, resulting in qualified matte. The molten bath produces high-temperature flue gas rich in carbon monoxide, which is fully combusted in a rotary kiln. When producing alloys, ore and coal are heated and deep reduction is performed. No reducing agent is required to produce matte, and sufficient sulfide allows the ore to be sulfided in the rotary kiln. The rotary kiln and molten bath furnace adopt an integrated configuration to reduce heat loss. Coal powder is directly delivered to the working surface, effectively avoiding the ineffective consumption of carbonaceous reducing agents and further enhancing the reduction effect. The method of the present invention has the characteristics of a short process, simple operation, easy control, strong raw material adaptability, high production efficiency, low production cost, low equipment investment, low energy consumption, high copper recovery rate, and environmental friendliness.

The invention discloses an anti-fatigue detection method for a structural member made of a high polymer material, and belongs to the field of material detection.The anti-fatigue detection method comprises the following steps that S1, a thermoplastic high polymer raw material for preparing the structural member is heated to be in a molten state, and a first intermediate is formed; s2, preparing a shell layer by taking polylactic acid, Y-type polyethylene glycol succinic acid, acetylsalicylic acid and a DCP catalyst as raw materials, and preparing fluorescent color developing agent microspheres by taking a high-temperature-resistant liquid fluorescent color developing agent as a core material; s3, adding fluorescent color developing agent microspheres into the first intermediate, uniformly stirring, heating, continuously stirring, uniformly mixing the color developing agent with the first intermediate after the color developing agent is released to obtain a second intermediate, and performing injection molding, molding, curing and cooling on the second intermediate to obtain a structural part sample; and S4, carrying out fatigue detection on the structural member sample by adopting a fatigue testing machine. The method solves the problems that closed cracks or internal defects are difficult to directly recognize from the inside and the initiation and expansion process of the internal cracks of the component cannot be captured at present.

The application relates to the technical field of solid-state batteries, in particular to a halide oxyde and a preparation method and application thereof. The application takes a molten salt Li a M b X c as raw material, reacts with an oxide A d O f in a molten state, removes steam impurities by means of high-temperature vacuum extraction, and obtains the halide oxyde solid-state electrolyte after cooling; the molten salt raw material is melted into an ionic melt at high temperature, oxygen elements are introduced to replace part of halogens, the hardness of the target electrolyte is reduced after cooling, the deformation ability at room temperature is improved, the obtained electrolyte has high conductivity, a wide oxidation electrochemical window, and the like. The prepared halide oxyde solid-state electrolyte is used for preparing a positive electrode, and the adhesion, actual micro contact area and ion migration rate between the electrolyte and positive electrode material particles are improved through melt infiltration, the positive electrode interface problem is effectively relieved, and the electrochemical performance of the full solid-state battery is improved.

The invention provides an application of a composite coating formed by titanium oxide and chromium oxide in hydrogen resistance, which comprises the following steps: substrate preparation: cutting a metal sample into a metal substrate, pretreating the surface of the metal substrate, polishing, cleaning and drying; cr2O3-10% TiO2 composite powder is adopted, the composite powder is heated to be in a molten or molten state, and under traction of plasma high-speed flame flow, the composite powder impacts the surface of the base body in an accelerated mode and deposits to form the ceramic coating. According to the application of the composite coating formed by the titanium oxide and the chromium oxide in hydrogen resistance, the hydrogen permeation current is reduced, so that the hydrogen resistance of the coating is enhanced.

The invention provides a method for repairing photovoltaic aluminum profile H13 die steel through self-fluxing alloy powder. The method comprises the steps that (1) the self-fluxing alloy powder is prepared; (2) the H13 die steel to be repaired is subjected to surface cleaning and decontamination, annealing treatment and preheating; (3) adjusting parameters of an optical fiber laser cladding system, and feeding the self-fluxing alloy powder into a laser acting area of the optical fiber laser cladding system; in the laser scanning process, a laser beam heats a local area into molten alloy liquid; (4) the alloy liquid is conveyed to the surface of the H13 die steel to be repaired, and a laser beam and the alloy liquid interact to form a firm cladding layer; protective gas is introduced to help the self-fluxing alloy powder flow; (5) gradient cooling is conducted after stress relief annealing is conducted on the cladding layer, and a high-precision numerical control grinding machine is used for finishing and polishing; and repairing is completed. When the self-fluxing alloy powder is used for repairing the H13 die steel, the repairing quality can be improved, the performance of the repaired H13 die steel can be remarkably improved, the production cost is reduced, and the service life of the H13 die steel is prolonged.

The invention discloses a preparation process of a dual-material tappet with both wear resistance and toughness, and relates to the technical field of engine tappet manufacturing, the preparation process comprises the steps of matrix pretreatment, gradient heating, infiltration compounding, diffusion heat preservation, subsection cooling and finish machining, and a wear-resistant alloy material comprises the following chemical components in percentage by weight: 3.2-3.6% of C, 0.4-0.6% of Ni, 2.4-2.5% of Si, 0.9-1.3% of Cr, 0.6-0.9% of Mn and the balance of Fe and inevitable impurities. Mo is equal to 0.4%-0.65%, and Slt is equal to 0.1%, Plt; 0.1%, with the balance being Fe and inevitable impurities. Compared with the prior art, the method has the advantages that the performance can be flexibly matched according to different engine requirements; the comprehensive performance of the working face is remarkably improved by adopting an infiltration composite process; the strength and the toughness of the matrix are improved; the double-metal bonding strength is consistent; the cost of the infiltration composite process is lower than that of brazing; the matrix in the semi-molten state and the wear-resistant material form metallurgical bonding, and the bonding strength is higher; the combined steel and the gradient cooling process jointly improve the impact resistance.

The invention discloses a high-temperature composite phase change heat storage material and a preparation method thereof, and belongs to the technical field of composite phase change heat storage materials. The composite phase change material comprises a matrix and a phase change material, the base body is porous ceramic, and the porous ceramic comprises a lining with a porous structure and a surface layer with a porous structure; compared with the pore diameter of the lining, the pore diameter of the surface layer is smaller; the high-temperature salt in a molten state can enter the inside through small holes in the surface layer; the surface layer can avoid leakage of high-temperature salt in a molten state, and the lining provides a storage and phase change space for the high-temperature salt; the porosity of the lining is larger than that of the surface layer, and the phase change material comprises high-temperature salt.

A lunar regolith reduction reactor system includes a housing, a crucible, and a pair of electrodes. The housing includes a base structure and a cover structure detachably connected to the base structure, a gas input port to permit input of hydrogen gas into the housing, and a gas output port to permit outgassing of water vapor and gases. The crucible is designed to hold an amount of lunar regolith in the housing. The electrodes are disposed apart from one another and adjacent the crucible, wherein the electrodes are connectable to a power source to generate an electric arc to heat lunar regolith in the crucible and initiate a reduction reaction to separate oxygen gas and reduce separated material into a molten state.

The invention discloses a topological chemical polymerization method based on discotic liquid crystals, and relates to the technical field of liquid crystal polymers. The method comprises the following steps: dissolving 3, 4, 5-tri (hexyloxy) phenylacetonitrile and 1, 3, 5-benzenetricarboxaldehyde in ethanol, adding tetrabutyl ammonium hydroxide, and reacting at 50-60 DEG C for 1-3 hours to obtain a discotic liquid crystal monomer; placing the discotic liquid crystal monomer on a substrate, heating the discotic liquid crystal monomer until the temperature is greater than or equal to 200 DEG C to enable the discotic liquid crystal monomer to be in a molten state, then pressing the discotic liquid crystal monomer to form a thin film, then cooling the discotic liquid crystal monomer to 70-80 DEG C, and then irradiating the thin film sample for 12-48 hours by using ultraviolet light to obtain the one-dimensional polymer material based on the topological chemical polymerization of the discotic liquid crystal. According to the method, the application range of topological chemical polymerization is widened, more adjustability is given to the topological chemical polymerization process, and new possibility is provided for the field of topological chemistry.

The invention provides a preparation method and application of a potassium adsorption material and a selective extraction method of potassium in mixed alkali metal salt. The method comprises the following steps: firstly, preparing adsorbent slurry, immersing a porous metal material into the slurry, and carrying out ultrasonic treatment, maintenance, drying and activation to obtain a potassium adsorption material which can selectively extract potassium ions in mixed alkali metal salt; the selective extraction method of potassium in mixed alkali metal salt comprises the following steps: adding a potassium adsorption material into alkali metal salt in a molten state to selectively fix potassium ions to the potassium adsorption material, then adding a first extraction agent, converting insoluble potassium fixed by the potassium adsorption material into soluble potassium ions, and filtering to obtain a first filtrate; adding a second extracting agent into the first filtrate, filtering to obtain a second filtrate, and performing evaporative crystallization on the second filtrate to obtain a potassium salt product; the problems that an existing industrial mixed salt separation process is tedious, high in cost, low in resource recovery efficiency, free of selectivity and pertinence and the like are solved.

The invention belongs to the technical field of phase change heat storage materials, and particularly relates to a phase change composite heat storage and energy storage material and a preparation method thereof. The phase-change composite heat and energy storage material comprises the following raw material components: sodium acetate trihydrate, disodium hydrogen phosphate dodecahydrate, porous silicon dioxide, nano Al2O3, expanded graphite, borax, polyacrylamide and the balance of water. The preparation method of the material comprises the following steps: S1, heating sodium acetate trihydrate to a molten state, and dipping into porous silicon dioxide; s2, adding borax, nano Al2O3, disodium hydrogen phosphate dodecahydrate, polyacrylamide and water, and stirring for dissolving; s3, adding expanded graphite, and grinding; and S4, cooling to obtain the product. The invention aims to solve the key problems of high supercooling degree, phase separation, insufficient phase change latent heat, poor comprehensive performance and the like of the existing phase change heat storage material, and a new material meeting the requirements of building heating, industrial waste heat recovery, solar heat storage and other fields on efficient heat storage and heat management is prepared.

The invention belongs to the technical field of nuclear reactor spent fuel circulation and material design, and discloses a method for electrolytically reducing metal cerium from cerium-containing high-temperature fluoride molten salt waste slag, which comprises the following steps: heating the cerium-containing high-temperature fluoride molten salt waste slag until the cerium-containing high-temperature fluoride molten salt waste slag is completely molten to obtain molten state molten salt waste slag; the method comprises the following steps: by taking molten-state molten salt waste residues as an electrolyte, carrying out four-stage pulse electrolysis treatment on the electrolyte for 50-200 times by utilizing a three-electrode system, so as to obtain rare earth metal cerium mixed with molten salt. According to the method, the cerium-containing high-temperature fluoride molten salt waste residues in the molten state are subjected to four-stage pulse electrolysis treatment through a three-electrode system, and electrolytic reduction of metal cerium in the cerium-containing high-temperature fluoride molten salt waste residues can be selectively achieved by regulating and controlling technological parameters and pulse electrolysis times of pulse electrolysis; and the process is simple to operate, short in treatment period and beneficial to popularization and application.

The invention provides a production system of colored POY (polyester pre-oriented yarn). The production system comprises a discharging mechanism; the mixing mechanism is arranged on the discharging mechanism; the material extruding mechanism is arranged on the mixing mechanism; the wire extruding mechanism is arranged on the material extruding mechanism; various mechanisms are arranged to achieve high-quality production of colored POY polyester filaments, the discharging mechanism heats color master batches into a molten state and then quantitatively conveys the molten color master batches, the proportion of the color master batches is controlled, it is guaranteed that the mixed color is stable, meanwhile, moisture is discharged, melt hydrolysis and fiber defects are avoided, the mixing mechanism is matched with a fixing piece through a stirring piece, the molten color master batches are utilized, and the color master batches are mixed uniformly. The flow path is increased, the flow speed is reduced, the color master batches are dispersed and mixed more uniformly, the extrusion mechanism pushes the color master batches at a low rotating speed, heat generated by friction is reduced, the color master batches are prevented from being decomposed, and the extrusion mechanism is rapidly cooled by cold air when the color master batches are discharged, so that the color master batches are formed.

The invention provides a green and environment-friendly high-performance bamboo-plastic composite material and a preparation method and application thereof.The green and environment-friendly high-performance bamboo-plastic composite material is prepared from long-chain-chain PBS, modified calcium carbonate, bamboo powder and fluorine-containing auxiliaries, KH-570 is loaded on the surface of ground calcium carbonate, then the bamboo powder and the fluorine-containing auxiliaries are added in sequence, surface modification is conducted on the bamboo powder through impact force and friction force, and the bamboo-plastic composite material is obtained. Mixing the obtained modified bamboo powder / calcium carbonate with long-chain branch PBS in a double-screw extruder; according to the scheme, better interface cohesiveness is provided for the composite material by introducing the long-chain branch PBS, and entanglement among PBS molecular chains is increased by the long-chain branch structure, so that the matrix material has higher melt strength and better fluidity in a molten state; the bamboo powder and the calcium carbonate are subjected to surface modification treatment, more polar groups or functional groups with good compatibility with a PBS matrix are introduced, the modified bamboo powder / calcium carbonate is obtained, and the mechanical property, the thermal property, the interfacial compatibility and the crystallization property of the composite material are overall improved. The tensile strength of the obtained product is 13.61 MPa, and the elongation at break is 53%.

The invention provides a super-smooth antifouling surface with photo-thermal self-repairing performance as well as a preparation method and application of the super-smooth antifouling surface. The super-lubricity antifouling surface comprises a light response substrate and a lubricating layer formed on the light response substrate. Wherein the photoresponse substrate can trigger the photothermal conversion performance under the irradiation of near-infrared light, so that the temperature of the super-lubricity antifouling surface is rapidly increased, polyethylene wax and C12-C16 long-chain alkane in the lubricating layer can be in a molten state, the position, with defects, of the surface of coastal or marine common mechanical equipment is filled up, and after cooling, the surface of the mechanical equipment is not damaged. And a self-repairing function is realized. Compared with the prior art, by compounding the polyethylene wax and the C12-C16 long-chain alkane, a novel solid-state phase-change super-smooth surface can be provided, the stability and the antifouling property of the super-smooth antifouling surface are remarkably improved, and the problem that the antifouling property fails due to the fact that a traditional liquid-state super-smooth surface lubricating layer is poor in shear resistance is remarkably solved.

The invention relates to the technical field of fabric production, and discloses a chemically-modified acetic acid-imitated weaving fabric forming device which comprises a bottom plate, a support, a stirring barrel and a heat preservation box. Materials of corresponding discharging hoppers are accurately input into the stirring barrel in proportion, heating wires heat the stirring barrel, stirring is matched with a stirring frame, and water evaporation is accelerated; a humidity sensor monitors the water content in real time, after the water content reaches the standard, a valve plate rotates to feed materials to a heating cylinder, a second spiral conveying plate stirs the materials to form a molten state, the materials are preliminarily filtered through a discharging hole filter screen, blockage is prevented through a scraper, secondary filtering is conducted through a screen exchanger, the melt pressure and the flow speed are stabilized, and the product quality is improved; uniform dispersion is realized through diversion of a diffusion tuyere of the net forming box, and directional arrangement is broken; the lower air suction box adsorbs the fibers to the conveying belt, the device automatically monitors the thickness and adjusts the flow speed, a fiber net is pre-reinforced through a needle plate, a water-based adhesive is sprayed through a spray head, the fiber net is dried and cured through a drying frame, then the fiber net is pressed through a pressing shaft, and stability is enhanced.

According to the integrally-formed composite material structure based on the three-dimensional printing and casting technology and the preparation method of the integrally-formed composite material structure, the preparation method of the integrally-formed composite material structure comprises the three steps that firstly, three-dimensional printing is conducted on a first metal material to obtain a metal insert, and then aftertreatment is conducted; and finally, the second metal material is heated to be in a molten state, and finally the integrally-formed composite material structure is obtained. According to the method, the 3D printing metal insert is precisely designed to be in butt joint with a traditional casting process, an integrated composite metal structure is formed, and the precision and sealing performance of mold assembly are ensured. And moreover, the complex-shaped material is manufactured through 3D printing, complex material forming which is difficult to complete through a traditional manufacturing process can be achieved, the requirements of different fields for manufacturing the complex-shaped metal material are met, and the limitation of a traditional titanium-aluminum compounding process is broken through. The integrally-formed composite material structure is a material with high precision, high strength and good surface smoothness.