1529 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 invention provides a Raney nickel electrode preparation method which comprises the following steps: 1, taking nickel powder with the particle size of 15-75 microns, nickel powder with the particle size of 75-150 microns and aluminum powder with the particle size of 15-75 microns, pouring the nickel powder, the nickel powder and the aluminum powder into a mixer, uniformly mixing without segregation phenomenon, and enabling the nickel powder, the nickel powder and the aluminum powder to respectively account for 70%-79%, 1%-10% and 20%; secondly, a plasma spraying technology is adopted, the temperature is regulated and controlled, so that the nickel powder and the aluminum powder with the particle size being 15-75 micrometers reach a molten state, and the nickel powder with the particle size being 75-150 micrometers reach a semi-molten state; spraying to a nickel net, and activating, cleaning and cutting to obtain a Raney nickel electrode; the nickel powder and the aluminum powder with different particle sizes are reasonably matched in the powder formula, the particle flying speed in spraying is properly increased, the spraying temperature is balanced, the powder with different particle sizes reaches different molten states, and therefore the large-particle nickel powder forms a good support in the coating, the bonding strength of the coating is remarkably improved, and the service life of the coating is prolonged. And the catalyst is not easy to fall off in the use process, so that the efficiency and the stability of the water electrolysis hydrogen production equipment are improved.

The invention discloses a high-efficiency sulfur-iron-based nitrogen and phosphorus removal and autotrophic denitrification composite filler and a preparation method thereof. The high-efficiency sulfur-iron-based nitrogen and phosphorus removal and autotrophic denitrification composite filler is characterized by comprising the following raw material components in percentage by mass: 1-60% of activated pyrite powder, 30-95% of sulfur, 1-10% of trivalent iron salt and 1-10% of limestone powder. And forming through a thermal compounding process. The preparation method comprises the following specific steps: firstly, activating the pyrite and the magnetic pyrite at high temperature under the protection of protective gas; sulfur is heated to be in a molten state; uniformly mixing the activated pyrite powder, trivalent iron salt and limestone powder to obtain a powdery mixed material; adding the powdery mixed material into molten sulfur, raising the temperature to 125-145 DEG C, and fully and uniformly mixing; and finally, cooling and curing the obtained material to obtain the autotrophic denitrification composite filler. According to the high-efficiency sulfur-iron-based autotrophic denitrification nitrogen and phosphorus removal composite filler prepared by the preparation method, pyrite is calcined and activated, ferric iron salt is used as an oxidizing agent to promote decomposition of the activated pyrite, and the electron donor release capability of the pyrite is improved, so that the high-efficiency nitrogen and phosphorus removal effect of the filler is realized.

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 hydraulic system and an injection molding machine, the hydraulic system is applied to the injection molding machine, the hydraulic system comprises a glue injection control loop and a mold locking control loop, the glue injection control loop comprises a hydraulic lock, a plurality of reversing valves, a first cartridge valve, an overflow valve and a first proportional overflow valve, the injection device is arranged to inject plastic in a molten state into a mold cavity at preset pressure and speed; and the mold locking control loop is connected with the glue injection control loop, comprises a second proportional overflow valve, a plurality of reversing valves, a second cartridge valve, a shuttle valve and a safety valve, and is used for locking the mold at a preset pressure and maintaining the pressure. The injection molding machine solves the problem of low production efficiency of plastic products of an injection molding machine in the prior art.

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 discloses a multi-cooling molding method of a PVC (polyvinyl chloride) material, which comprises the following steps: S1, heating PVC resin and additives to a molten state, S2, extruding the molten polymer melt through a molding device to form a tubular blank; s3, the tubular blank is subjected to a first cooling stage, and a compact inner layer structure is formed; s4, the pipe blank with the solidified inner surface enters a second cooling stage, secondary cooling is conducted through cold air at the preset low temperature, and a tough outer layer structure is formed; s5, the pipe blank subjected to multiple cooling is subjected to shaping treatment; by means of the multiple cooling technology of inner and outer staged cooling, differential control over the inner layer and the outer layer of the pipe blank is achieved, the performance limitation caused by the single cooling mode in the traditional technology is overcome, the compact high-strength inner layer is formed, the pressure resistance and abrasion resistance of the pipe are enhanced, the cracking resistance of the pipe is improved, and the overall performance of the PVC pipe is effectively improved; and the application range of the PVC pipe is widened.

The invention discloses high-transparency explosion-proof glass and a preparation process thereof, and the preparation process comprises the following steps: uniformly mixing a glass substrate and Al2O3 nanoparticles in proportion, and heating until a molten state to obtain a liquid glass matrix; the method comprises the following steps: introducing a liquid glass matrix into a forming mold, and pre-cooling the liquid glass matrix to enable the liquid glass matrix to be in a semi-solid state; the method comprises the following steps: applying directional stress to a semi-solid glass substrate, and cooling the semi-solid glass substrate to obtain a compression layer, so that the glass is of a hard-soft-hard layered structure; directional stress is applied to the semi-solid glass substrate, so that Al2O3 nanoparticles are uniformly enriched on two surfaces of the glass substrate and are quickly cooled, a compression layer is formed on the surface of the glass, and a relatively small tensile stress layer is formed inside the glass, so that the glass is of a hard-soft-hard layered structure, external force impact can be effectively absorbed and dispersed, and the service life of the glass is prolonged. Stress concentration and crack propagation are avoided, the internal structure of the glass is protected, and the anti-explosion performance and durability of the glass are improved.

The invention discloses a flexible composite phase change material, a preparation method and a solar thermoelectric power generation system using the flexible composite phase change material. The flexible composite phase-change material is prepared by taking a hydrogenated styrene-butadiene block copolymer SEBS as a temperature-resistant and aging-resistant flexible matrix, an olefin block copolymer OBC as a flexible elastomer, paraffin PW as a phase-change material and expanded graphite EG as a porous heat-conducting reinforcing material through a melt blending method and through hot compression molding. The material has self-packaging performance, so that the paraffin can be prevented from leaking in a molten state; and the paraffin has good flexibility and bending performance in a molten state. According to the flexible composite phase change material, the phase change temperature ranges from 62.06 DEG C to 63.54 DEG C, the phase change latent heat ranges from 124.84 J / g to 136.14 J / g, and the heat conductivity coefficient ranges from 3.07 W / (m.K) to 4.54 W / (m.K). The solar thermoelectric power generation system is composed of a flexible composite phase change material, a thermoelectric power generation device, a radiator, a waterproof coating and a solar water heater, solar thermoelectric power generation and hot water production can be carried out through solar energy at the same time, and efficient light-heat-electricity conversion 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 an insulating layer extruder for cable manufacturing, and belongs to the field of cable manufacturing equipment. The extruder body is fixedly mounted at the upper end of the bracket and comprises a shell; a rotating shaft is arranged in the center of the shell, one end of the rotating shaft penetrates through the shell to be fixedly connected with an output shaft of a transmission, a transmission gear is fixedly connected to an input shaft of the transmission, and the transmission gear is meshed with a gear on an output shaft of a motor fixedly connected to the support. The rotating direction of the spiral plate II is opposite to the rotating direction of the spiral plate I and the rotating direction of the spiral plate III, and the opposite faces of the spiral plate II and the spiral plate I are fixedly connected with movable devices. According to the device, raw materials which are not in a molten state can be pushed to move in the direction of the spiral plate I through rotation of the spiral plate II until the raw materials are in the molten state and then flow to the position of the spiral plate III through the penetrating holes, the situation that the penetrating holes are blocked by small particles, and the flow is affected is avoided, and the raw materials can be stirred through the sliding rod; and uniform heating is ensured.

The invention discloses an injection molding method of an anti-aging simulation plant. The injection molding method comprises the following steps: preparing raw materials; uniformly mixing the raw materials according to a set material proportioning model so as to obtain anti-aging proportioning raw materials exceeding a preset threshold value; according to the shape and the size of the simulation plant, through a system integrated with an intelligent design engine, design data are extracted, and a design mold is generated; the proportioned raw materials are heated in a heating cylinder of an injection molding machine to be in a molten state, and molten plastic is obtained; the molds are firmly clamped together; injecting the molten plastic into the cavity of a mold under a predetermined pressure; a preset pressure of a preset time is kept in the cavity; cooling and solidifying the material in the mold to form the shape of the mold; and opening the mold to obtain the formed simulation plant. According to the technical scheme, the service life of the anti-aging simulation plant is prolonged, and the safety of the anti-aging simulation plant is improved by optimizing the raw material ratio, accurately controlling the injection molding process and other key steps.

The invention discloses a false eyelash supporting part, a false eyelash, a false eyelash processing method and a false eyelash using method. The false eyelash supporting part comprises an adhesion layer with a length. When being heated to be viscous, the eyelash adhesive tape is used for adhering eyelash wool in the length direction; after the normal temperature is recovered, eyelash wool can be attached to the eyelash mask so as to support the eyelash wool to keep a preset shape; the false eyelash includes: a false eyelash support; the eyelash wool is attached to the false eyelash supporting part; and the false eyelash supporting part is connected near the root part of the eyelash wool when being heated to be viscous. The false eyelash supporting part can be bonded with eyelash wool in a molten state, the step of glue injection is omitted, damage to the human body is small, and the process is simple.

The invention provides a method for preparing H2-CO energy gas from steel slag, and belongs to the field of metallurgy and solid waste treatment. The preparation method comprises the following specific preparation steps: step 1, blowing weak oxidizing gas to the liquid level of the steel slag in a molten state to oxidize FeO in the steel slag, so that hydrogen and carbon monoxide gas are generated while ferric oxide is converted into a magnetic phase which is easy to separate; and 2, separating and collecting the reacted gas. After the steps, the energy gas containing H2 and CO is finally generated for recycling. Through the treatment steps provided by the invention, (1) CO2 is absorbed and converted into CO energy gas, and carbon emission is reduced; (2) waste heat of the steel slag is utilized, water vapor is converted into clean energy H2, and the hydrogen production cost is remarkably reduced; and (3) the injection proportion of H2O-CO2 gas is regulated and controlled, and the generation rate of H2-CO is remarkably increased.

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.

The invention relates to the technical field of vehicles, in particular to a wire holder, a manufacturing method thereof and an electric driving system. According to the technical scheme, the injection mold suitable for the shape and the function of the wire holder body is designed. And the copper bar assembly and the low-voltage connecting assembly can be inserted into the mold. The copper bar assembly and the low-voltage connecting assembly are placed at preset positions of the mold, the copper bar is usually used as a conductive part, and the low-voltage connecting assembly is used for electrical connection. And heating the plastic raw material to a molten state, and injecting into the mold. And the plastic is cooled and cured in the mold to form the wire holder main body. The plastic surrounds the copper bar and the low-voltage connector in the mold, so that the copper bar and the low-voltage connector are fixed in the main body to form the wire holder. Since the first sealing element is integrally fixed on the copper bar, the first sealing element can be tightly attached to the wire holder main body subjected to injection molding in the injection molding process that the plastic raw material is heated to a molten state and then injected into a mold, and the sealing performance of the whole wire holder is further improved.

The automatic welding device comprises a base, a lifting platform, a material box, a thrust assembly, a welding nozzle, a pin conveying module and a pin box, the lifting platform is installed on the base and used for driving the material box, the thrust assembly and the welding nozzle to move up and down; the pin box is used for storing pins; the pin conveying module is used for taking out the pins stored in the pin box and conveying the pins to the position below the welding nozzle. The material box is used for storing welding materials; a plurality of welding nozzles are arranged, and each welding nozzle is communicated with the material box; according to the welding device, metal is heated to be in a molten state through the heater in the material box, then molten metal is sprayed to the welding position through the welding nozzle, and after the metal is cooled, welding of the pins and the electrodes is completed; through the mode, a plurality of pins can be simultaneously welded on a plurality of storage batteries according to a specified arrangement mode, so that the working efficiency is greatly improved.

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.

The invention discloses a high-yield laminated mold, and relates to the technical field of molds, the high-yield laminated mold comprises a middle mold base, external mold bases are slidably connected to the two sides of the middle mold base, mold cavities are formed in the two sides of the middle mold base, and hot runners communicating with the mold cavities are installed in the middle mold base; a cavity is formed in the middle mold base, an ejector pin penetrating through the middle mold base and extending into the cavity is slidably connected into the middle mold base, a boss is fixedly installed in the ejector pin, a positioning column used for being connected with a nut in a sleeved mode is fixedly connected to the boss, and the sealing unit comprises a sleeve and a piston plate which are slidably connected into the positioning column. The larger the internal pressure of the first sealing ring is, the tighter the first sealing ring and the inner wall of the nut is, plastic in a molten state is prevented from entering threads of the nut under the pressure, after a material is cooled and shaped, the roller and the first sealing ring can automatically restore to the original shape, the force needed by demolding ejection of a product is reduced, and the ejector pin can eject the product perfectly and conveniently.

The invention discloses a short-long wave laser hybrid welding method for aluminum alloy, and belongs to the field of laser welding. The method comprises the following steps: firstly, treating the surface of the aluminum alloy by adopting short-wavelength laser as a pretreatment laser source to enable the surface of the aluminum alloy to be in a molten state; according to the method, aluminum is pre-melted, then long-wavelength laser is adopted for welding, due to the fact that the reflectivity of the aluminum to the infrared laser in the liquid state is remarkably reduced, the pre-melting step creates conditions for follow-up long-wavelength infrared laser welding, the absorption rate of the infrared laser is remarkably improved, and loss of laser energy is reduced; according to the process, the utilization rate of welding energy is optimized and the welding quality is improved by utilizing different heating effects of lasers with different wavelengths on the surface of the aluminum alloy.

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.