78 results about "Liquid aluminium" patented technology

The invention belongs to the technical field of composite material casting, and relates to an aluminum / iron bimetal composite material based on a micro-textured intermediate layer and a preparation method thereof.The micro-textured intermediate layer is pre-arranged on the surface of an iron base material in advance in an electro-deposition and laser etching composite mode, and in the liquid-solid composite casting process, the micro-textured intermediate layer is pre-arranged on the surface of the iron base material in advance; the middle layer plays a role in isolating direct contact between the liquid aluminum alloy melt and the solid iron base material, and the microstructure on the surface of the middle layer plays a role in inducing stress coordinated distribution. The problem that the interface is easy to crack can be effectively solved through dual control of the interface phase composition and the interface structure of the aluminum / iron double-metal composite material, so that the interface bonding strength of the aluminum / iron double-metal composite material is stably improved.

The invention relates to the field of bimetal composite materials, in particular to a method for researching the influence of an intermediate layer on bimetal interface assembly and performance, which comprises the following steps: electrochemically depositing a FeCoNiCr-M high-entropy alloy coating; a micro-textured high-entropy alloy coating is constructed in a laser controllable manner; according to Al / HEA / Fe composite material liquid-solid forming process optimization and structure property characterization, the Al / HEA / Fe composite material liquid-solid forming process optimization and structure property characterization method has the following beneficial effects that according to the requirement for Al / Fe bimetal high interface bonding strength, the microtextured high-entropy alloy coating is prepared through the electrochemical and femtosecond laser composite technology, the microtextured high-entropy alloy coating serves as a middle layer between a solid steel matrix and a liquid aluminum alloy melt, and the high-strength Al / HEA / Fe composite material is obtained; the Al / HEA / Fe composite material is obtained through a liquid-solid forming technology, and the Al / HEA / Fe composite material is obtained through high-entropy alloy component / content optimization, coating surface structure design, technological parameter regulation and control and the like on the basis of thermal and dynamic calculation and experimental data analysis. And research on the aspects of a high-entropy alloy coating solid solution phase forming mechanism, a composite material interface structure evolution rule, an interface strengthening mechanism and the like is carried out.

The invention discloses a semi-solid plastic forming method for 6xxx aluminum alloy, and belongs to the technical field of semi-solid forming. The method comprises the steps that an original aluminum alloy ingot is smelted to obtain liquid aluminum alloy, and pouring is started to prepare semi-solid slurry when the temperature is 20-50 DEG C higher than a liquidus; transferring the semi-solid slurry into a preheated mold on an extruder for extrusion casting to obtain a semi-solid cylindrical blank; and the semi-solid blank is preheated and subjected to heat preservation, the preheated semi-solid blank is transferred into a preheated extrusion container, aluminum alloy profile extrusion is conducted, and finally the high-strength and high-plasticity aluminum alloy profile is obtained. According to the semi-solid rheological squeeze casting technology, grains and a second phase are refined, a semi-solid cast ingot which is more uniform in structure and better in compactness is obtained, and follow-up profile extrusion of the semi-solid cast ingot is facilitated; and finally, the aluminum alloy profile with higher compactness and better mechanical property is obtained through profile extrusion.

The invention relates to the technical field of titanium composite material processing, in particular to a narrow titanium-aluminum solid-liquid composite material and a preparation method and application thereof. The narrow titanium-aluminum solid-liquid composite material comprises a titanium strip and an aluminum strip formed by casting and rolling molten aluminum, wherein the titanium strip is made of pure titanium or titanium alloy; the aluminum strip is one of 1-series pure aluminum, 3-series aluminum alloy, 5-series aluminum alloy and 6-series aluminum alloy; the peel strength between the titanium strip and the aluminum strip is larger than or equal to 60 N / mm < 2 >, and the tensile strength of the narrow-width titanium-aluminum solid-liquid composite material is larger than or equal to 300 MPa, the yield strength is larger than or equal to 200 MPa, the composite surface shear strength is larger than or equal to 180 MPa, and the ductility is larger than or equal to 20%. The titanium-aluminum solid-liquid composite material prepared in the invention has good mechanical strength and bonding strength.

The invention belongs to the technical field of part casting, and discloses a variable casting device for offshore wind turbine parts, which comprises a casting table, a first hydraulic rod is fixedly connected to the middle of the top end of the casting table, an injection piston is fixedly connected to the output end of the injection piston, and a funnel is fixedly connected to one side of the top of the casting table. A driving motor is started to push a threaded rod and a piston plate to move, at the moment, a first rotating shaft rotates to synchronously drive a first connecting rod to rotate, the first connecting rod rotates to drive a circular plate to rotate, and the circular plate rotates to drive a sliding column and a sealing plate to move towards the two sides through a sliding groove; and the liquid aluminum flows out and flows into the forming cavity through the second flow guide pipe for secondary input, so that the conditions of volume reduction and insufficient thickness caused by cooling shrinkage after the casting is formed are avoided, the size precision is improved, the subsequent processing requirements are reduced, the structural integrity is enhanced, and the risks of cracks and deformation are reduced.

The invention relates to a narrow-breadth double-layer solid-liquid composite material based on molten aluminum and a preparation method and application thereof.The preparation method comprises the following steps that roughening treatment is conducted on the bonding surface of a plastic processing material, solid-phase particles are formed on the bonding surface of the plastic processing material through a spray drying method, and the solid-phase particles comprise metal with the melting point not higher than 650 DEG C; and liquid aluminum is prepared, the liquid aluminum is continuously cast on the bonding surface of the strip through a cast rolling technology, the solid particles and the liquid aluminum move along with the plastic processing material so as to pass through a roller and be subjected to aftertreatment to form the narrow-breadth double-layer solid-liquid composite material, the roughness of the bonding surface is 1-5 microns, and the average particle size of the solid particles is 1-5 microns. According to the scheme, the influence of direct introduction of solid-phase particles into the molten aluminum on the liquidity of the molten aluminum is avoided, shrinkage cavities and shrinkage porosity in the aluminum layer of the composite material can be reduced, meanwhile, a mechanical embedding structure can be formed with the combination surface of the molten aluminum and the strip in the cast rolling process, and the interface combination effect is improved.

The invention relates to the technical field of electronic components, in particular to a liquid aluminum electrolytic capacitor with edges resistant to high-voltage breakdown and a preparation method of the liquid aluminum electrolytic capacitor, and solves the problems that in the prior art, wet electrolytic paper is still electrically conducted with an aluminum shell and a cathode, and burrs and edges of an anode foil still discharge the electrolytic paper. The invention discloses a liquid-state aluminum electrolytic capacitor with edges resistant to high-voltage breakdown and a preparation method thereof. The liquid-state aluminum electrolytic capacitor comprises an anode foil, a cathode foil, a core bag formed by winding electrolytic paper, and an aluminum shell wrapping the core bag, the inner wall of the aluminum shell is coated with an insulating layer which is obtained by dissolving, mixing, coating and drying a specific mixture. By coating the insulating layer, the electric contact between the edge of the core cladding and the aluminum shell is effectively blocked, the high-voltage breakdown resistance of the capacitor is improved, the problem that burrs and edges of the positive electrode foil discharge to the aluminum shell is solved, and the reliability and the stability of the capacitor are enhanced.

The invention discloses a welding method for manufacturing a three-dimensional structure reinforced steel / aluminum welding joint on a steel surface, and belongs to the technical field of dissimilar metal welding. A steel three-dimensional geometric structure is manufactured on the surface of a steel substrate by adopting a selective laser melting method, and a surface with a high length-diameter ratio and a high specific surface area is formed; a brazing or melt-brazing method is adopted, the bonding area between the molten aluminum and the steel plate and the bonding area between the molten aluminum and the three-dimensional geometric structure are greatly increased, expansion of cracks is effectively restrained, and the strength and toughness of the steel / aluminum dissimilar metal joint are enhanced. By means of the method, the steel / aluminum connector interface specific surface area can be increased, the sliding resistance is improved when an external load is borne, and meanwhile the three-dimensional geometric structure bears part of stress. And meanwhile, the three-dimensional geometric interface structure can relieve the interface stress of the connector and improve the stress distribution state, and the welded connector with good use performance can be obtained.

Disclosed is a method of producing hydrogen from the reaction of liquid aluminium or a liquid aluminium alloy with water vapour. The method includes the steps of: (a) providing liquid aluminium or liquid aluminium alloy, wherein said liquid has a surface; (b) reacting said liquid with water vapour in order to generate alumina and hydrogen, wherein if the reaction is carried out at a temperature range of 650 to 900 °C and a pressure range of 0.1 to 1 MPa, at least 50% of the hydrogen dissolves in the liquid, and wherein said reaction takes place at the surface and / or in the liquid; (c) extracting hydrogen in the form of gas from the liquid.

This invention relates to the manufacture of metal powders and discloses a controllable preparation method for semiconductor-grade ultrafine spherical aluminum powder, comprising: preparing a composite molten salt composed of a matrix salt and an interface pinning agent calcium fluoride and heating it to a dispersion temperature to form a homogeneous melt; shearing and dispersing liquid aluminum in the melt; performing temperature-controlled dissolution, controlling the cooling rate to allow calcium fluoride to precipitate in situ and adsorb before the aluminum droplets solidify, forming a physical pinning shell layer; and restricting solidification and removing the salt medium. This invention utilizes the temperature-dependent solubility characteristics to construct a microscopic physical barrier before the droplets solidify, effectively blocking droplet aggregation through steric hindrance, achieving high sphericity and extremely narrow particle size distribution of the aluminum powder; simultaneously, it utilizes calcium fluoride microcrystals to induce the formation of a dense fluorinated aluminum oxide composite passivation layer, improving the powder's resistance to electrochemical migration and insulation reliability.

The invention discloses a die for evaluating the performance of die-casting aluminum alloy, which comprises a movable die and a static die, and the movable die comprises a die frame and a die core mounted in the die frame. The die core is provided with a sprue spreader for receiving a liquid aluminum alloy material, a test runner for testing the fluidity of the liquid aluminum alloy material, an exhaust runner for exhausting gas generated in the test runner, and a vacuum mechanism for enabling the test runner to form a vacuum state, which are connected in sequence; and a hot cracking island for testing the hot cracking tendency is arranged on the test runner. The fluidity of a liquid aluminum alloy material is tested by arranging the test flow channel, the test flow channel can form a die-casting aluminum alloy sample in a vacuum state and a non-vacuum state through the vacuum mechanism, and the die-casting aluminum alloy sample in a target shape can be cut out from the test flow channel to be tested; the mechanical property, the microstructure and the casting defect of a die-casting aluminum alloy sample are detected, and the hot cracking tendency is tested by arranging a hot cracking island on a test runner.

The embodiment of the utility model provides evaporation equipment which comprises an evaporation tank, the evaporation tank comprises a tank bottom and side plates, the horizontal projection of the tank bottom is rectangular, and the side plates are fixedly connected to four side edges of the tank bottom; the evaporation tank comprises a high-temperature section and a transition section, and the upper surface of the tank bottom is a plane within the range of the high-temperature section; within the range of the transition section, the upper surface of the groove bottom is an inclined surface, and the lower end of the inclined surface is connected with the plane; the high-temperature section is connected with the first heating assembly, the transition section is connected with the second heating assembly, and the set temperature of the first heating assembly is higher than that of the second heating assembly. After the technical scheme is adopted, the aluminum material in the molten state does not need to be directly evaporated from a solid state like a traditional technology, the aluminum material in the molten state is input into the evaporation tank, then the aluminum material in the liquid state is heated for evaporation, and the problem of aluminum material sputtering frequently occurring in existing operation is avoided.

The utility model discloses a connection structure of a battery cell top cover pole, which comprises a top cover plate, and two mounting holes are arranged on the top cover plate. According to the utility model, the upper pole and the lower pole are connected through the two mounting holes, the pouring hole of the upper pole is butted with the pouring groove of the lower pole, and then grouting operation is carried out through the pouring hole of the upper pole so as to fill a connecting cavity between the upper pole and the lower pole, and the grouting material is a liquid high-conductivity metal material, preferably liquid aluminum; after normal pouring and sealing are completed, liquid metal poured inside needs to be cooled and formed, finally metal overflowing from the pouring holes of the upper pole is milled through CNC machining, connection between the upper pole and the top cover plate and between the lower pole and the top cover plate is achieved, firmness between the top cover poles is improved, the failure risk is reduced, and the machining and manufacturing cost is reduced. In addition, during irrigation, the two irrigation holes can be irrigated through the irrigation assembly at the same time, and the irrigation efficiency is improved.

The utility model provides a laminated liquid aluminum electrolytic capacitor. The aluminum electrolytic capacitor comprises an aluminum shell, a positive pole, a negative pole, a pressure release valve and a laminated structure core bag, wherein the laminated structure core cladding is located in the laminated liquid aluminum electrolytic capacitor; the secondary core package with the laminated structure comprises anode foil / cathode foil, electrolytic paper, a plurality of layers of anode tabs, a plurality of layers of cathode tabs and a high-temperature adhesive tape which are alternately laminated, each of the plurality of layers of anode tabs is connected with the anode foil in the alternately laminated anode foil / cathode foil, and each of the plurality of layers of cathode tabs is connected with the high-temperature adhesive tape; each tab in the multiple layers of cathode tabs is respectively connected with the cathode foil in the alternately stacked anode foil / cathode foil, and the electrolytic paper is positioned between the alternately stacked anode foil and cathode foil. The laminated liquid aluminum electrolytic capacitor provided by the embodiment of the utility model is high in capacity, low in internal resistance and small in loss.

The invention discloses a normal-temperature liquid aluminum-based oxyhalide inorganic electrolyte, and a preparation method and application thereof, and relates to the technical field of inorganic electrolytes. The general chemical formula is Li < x > Al (1-my) A < y > B < ny > Cl (3-x-3my) O < x >, xlt; 0.6, 0 < = y < lt >; 0.3, 2 < = n < = 5, 1 < = m < = 3; m is an integer, and n is an integer; a is at least one of Al, Ta, Nb, Hf, Zr, In, Zn, Y, B and Sc; and B is at least one of Cl, Br, S, I and N. The electrolyte disclosed by the invention is in a liquid state with relatively high viscosity at room temperature, has viscoelasticity and shows excellent ionic conductivity. The raw materials are simple, the cost is low, the synthesis is simple, convenient and rapid, the energy consumption is low, and the HCl gas generated by anion exchange has low boiling point and is not easy to remain in the system. After being doped with anions and cations, the liquid viscoelasticity is still kept at room temperature, and the ionic conductivity is still excellent.

The utility model belongs to the technical field of non-ferrous metal smelting, and particularly relates to a non-ferrous metal producing and smelting device which comprises a base, two vertical plates are fixedly connected to the base, rotating columns are rotatably installed on the two vertical plates, a smelting tank is fixedly connected between the two rotating columns, a discharging pipe is connected to the bottom end of the smelting tank, and the discharging pipe is connected to the bottom end of the smelting tank. An inserting groove is formed in the discharging pipe, a plugging plate is inserted in the inserting groove, a lifting plate is fixedly connected to the top end of the plugging plate, a handle is assembled on the lifting plate, and a filtering plate is arranged in the discharging pipe; during use, impurities mixed in molten aluminum can be intercepted and filtered by arranging the filter plate, so that the purity of the molten aluminum can be ensured, high-quality raw materials are provided for subsequent processing, the quality of subsequent products is improved, the impurities adhered to the surface of the filter plate can be cleaned and removed, and the production efficiency is improved. Therefore, the phenomenon that the filter plate is blocked is avoided, and the subsequent filtering effect is ensured.

The invention relates to the technical field of motor shell production, in particular to a mold for an aluminum motor rear cover. Comprising a support, a lower die and an upper die are arranged on the support in the vertical direction in a sliding mode, the upper die and the lower die are connected with the support through a telescopic rod and a connecting rod respectively, a motor rear cover cavity is formed between the upper die and the lower die, and an injection pipe communicated with the motor rear cover cavity is fixed to the upper die. Through the integrated design of the upper cooling cavity, the lower cooling cavity and the pipe inserting system, cooling liquid circularly flows in the mold, and liquid aluminum is rapidly and evenly cooled. The casting period is shortened, material compactness reduction and toughness loss caused by too fast local cooling are avoided, when the casting is separated, cooling liquid in the upper cooling cavity is discharged through the upper insertion hole, direct contact with the casting is avoided, and the thermal stress defect is reduced.

The utility model relates to the technical field of aluminum ingot forming dies, and discloses an aluminum ingot forming fixing die which comprises a forming die, a sliding cavity is formed in the top side of the forming die, a forming cavity is formed in the inner wall of the bottom side of the sliding cavity, and the forming cavity provides a cavity for liquid aluminum ingot casting forming. The top cover frame is embedded in the sliding cavity of the forming die in a sliding mode, impurities on the surface of molten aluminum in the forming cavity are scraped and cleaned through horizontal sliding of the top cover frame in the sliding cavity, a frame opening is formed in the top cover frame, and rotating grooves are formed in the two side walls of the top cover frame correspondingly; according to the utility model, the limiting plate is rotationally adjusted to 180 degrees, so that the two supporting legs on the limiting plate limited on one side of the top cover frame are separated, the top cover frame can slide horizontally in the sliding cavity of the forming die, and impurities on the surface of molten aluminum in the forming cavity can be scraped and cleaned; and the conditions that pits, slag inclusion, air holes and other defects are formed on the surface of the molten aluminum after the molten aluminum is solidified are reduced, and the smooth appearance of the cast aluminum ingot is guaranteed.

According to the method for preparing the aluminum-scandium intermediate alloy with the assistance of aluminum chloride, a molten salt system is formed in an electrolytic furnace, and the molten salt system comprises, by mass, 5%-10% of AlCl3, 45%-47.5% of NaCl, 45%-47.5% of KCl and Sc2O3 accounting for 1%-3.5% of the total mass of the AlCl3, the NaCl and the KCl. And the molten salt system is heated to 730 DEG C to be molten, liquid aluminum serves as a cathode, graphite serves as an anode, the electrolysis temperature is 730-800 DEG C, the current magnitude is 1.5-2.7 A, electrolysis is conducted for 0.5-2.5 h, and the Al-Sc alloy is deposited at the position of the aluminum cathode at the bottom of the electrolytic cell. Metal Sc is not used as a raw material, the whole process is simple, the requirement for equipment is low, and implementation is easy. The energy consumption and the pollution are low.

The present invention belongs to the field of casting technology and provides a multifunctional casting method and apparatus. On the one hand, a protective atmosphere is added during the casting process to prevent oxidation of the liquid aluminum alloy and the solid iron matrix. On the other hand, in-situ heat treatment is performed to achieve stress relief annealing and reduce interfacial stress concentration. The present invention integrates the casting and heat treatment operations, avoiding interfacial cracking caused by rapid temperature drop during the transfer of the casting and avoiding cracking of the bimetallic interface. At the same time, by adjusting the atmosphere in the casting chamber during casting, the present invention can mark entrained structure oxide film defects during the casting process.

The application discloses a dry-out prevention wide-temperature-range liquid aluminum electrolytic capacitor and a preparation method thereof, and relates to the technical field of capacitors. The application comprises the following steps: firstly, cutting pretreated anode foils, cathode foils and electrolytic paper into predetermined sizes; then, riveting anode lead pins with the pretreated anode foils, riveting cathode lead pins with the cathode foils, and winding the pretreated anode foils, the cathode foils and the electrolytic paper into a core package after the riveting treatment; then, loading modified electrolyte into an aluminum shell, immersing the core package in the modified electrolyte, and then performing sealing, assembling, casing, aging treatment to obtain the dry-out prevention wide-temperature-range liquid aluminum electrolytic capacitor. The pretreatment of the anode foils effectively improves the dry-out prevention performance and stability of the capacitor; the components such as the synergist introduced in the modified electrolyte further improve the cycle life, the stability at low temperature and high temperature. Therefore, the capacitor has a more extensive application prospect.

The invention belongs to the technical field of new materials, and provides a cubic boron nitride particle reinforced aluminum-based composite material and a preparation method thereof. The preparation method comprises the following steps: putting cubic boron nitride particles into a mold, putting an aluminum block containing trace silicon element on the cubic boron nitride particles, vacuumizing, heating and preserving heat; and inert gas is introduced for heat preservation and pressure maintaining, and molten aluminum liquid is pressed into gaps among cubic boron nitride particles. The cubic boron nitride particle reinforced aluminum-based composite material is obtained by adding a trace amount of silicon element into an aluminum matrix and utilizing a gas pressure infiltration method, so that the wettability of liquid aluminum and cubic boron nitride particles can be improved, the interface design of the composite material is realized, the interface thermal resistance of the composite material is reduced, and the interface bonding of the composite material is improved; the cubic boron nitride particle reinforced aluminum-based composite material with excellent comprehensive performance is obtained, has an excellent heat dissipation effect, and can meet the heat dissipation requirements and mechanical property requirements of heat dissipation parts of high-power electronic devices.

The pure liquid aluminum conveying trough comprises a conveying trough body and a discharging trough body, a discharging opening is formed in one side of the outer wall of the discharging trough body, a partition plate is arranged in the middle of the discharging trough body, a heat preservation cover is arranged at the top of the conveying trough body, observation openings are formed in the two sides of the heat preservation cover, and movable doors are arranged outside the observation openings. A heat preservation cover is arranged at the top of the discharging groove, an inspection box is fixedly connected to the top of the heat preservation cover, an access door is arranged on the side, away from the conveying groove, of the inspection box, an air inlet bin is fixedly connected to the top of the access door, a pump body is fixedly connected to one side of the outer wall of the air inlet bin, and an air pipe is fixedly connected to the exhaust end of the pump body. The conveying trough, the discharging trough, the inspection box and the pump body are matched with one another, so that when the conveying trough is maintained and operated after conveying, hot air flow can be prevented from being directly sprayed outwards from the access door, the safety of workers is protected, and meanwhile, the maintenance efficiency of the conveying trough is improved.

The invention belongs to the field of aluminum alloy materials, and provides a method for preparing low-Mg waste aluminum material, wherein aluminum chips are put into a rotary kiln, and hot aluminum ash slag accounting for 50±5% of the weight of the aluminum chips is poured on the aluminum chips; the aluminum ash slag and the aluminum chips are evenly stirred, and during the stirring period, a stirrer is evenly added, and a stirring rake is continuously stirred, and the rotary kiln is tilted every 10-15 minutes, and the liquid aluminum in the aluminum ash slag is poured into a container; until there is no more liquid aluminum in the aluminum ash slag, and the liquid aluminum in the container solidifies to obtain low-Mg waste aluminum material. The ADC12 aluminum chip liquid prepared by the invention has a Mg content of ≤0.03%; the 356 aluminum chip liquid prepared by the invention has a Mg content of ≤0.05%; and can be used as a raw material for low-Mg cast aluminum alloy.

The application provides a preparation method of an aluminum-lithium alloy with adjustable components, and belongs to the field of non-ferrous metallurgy. The method comprises the following steps: preparing a mixed molten salt containing LiCl, KCl and / or NaCl as an electrolyte; preparing a mixed molten salt containing LiCl and AlCl3 as an electrolytic material, and determining the molar ratio of AlCl3 to LiCl in the electrolytic material and the single-feeding amount according to the target components of the aluminum-lithium alloy, the current efficiency of electrolytic aluminum and electrolytic lithium, and the single-feeding interval time; taking a graphite electrode as a cathode and an anode, and adding the electrolytic material with the set molar ratio into the molten-state electrolyte at intervals and quantitatively to carry out an electrolysis reaction, so as to obtain a liquid aluminum-lithium alloy with the target components. The application controls the feeding amount in the single-feeding interval and the mass of Al and Li generated in the single-feeding interval, so as to obtain the liquid aluminum-lithium alloy with the target components.

The utility model relates to the technical field of molten aluminum refining, in particular to molten aluminum refining equipment. Comprising a bottom plate, a refining equipment body and an auxiliary mechanism, the auxiliary mechanism comprises a treatment box, a top cover, a lower water distribution seat, an upper water distribution seat, a filter screen, a water inlet pipe, an exhaust pipe, a blow-off pipe and an extraction device, and when the treatment box needs to be cleaned, the extraction device is controlled to stop acting, and a control valve on the blow-off pipe is opened; a pressure water source is conveyed into the upper water distribution seat through the water inlet pipe, the water source can be sprayed out through the side wall flushing nozzles, so that the planes of the four side walls of the bottom of the treatment box are flushed, further, the pressure water source is conveyed into the lower water distribution seat at the same time, and pressure water can be sprayed out through the horizontal nozzles, so that the bottom of the treatment box can be flushed; and sewage can be guided out through a blow-off pipe, so that the problems that the interior of the box body cannot be automatically cleaned and the use is inconvenient after the harmful gas is filtered by the existing molten aluminum refining equipment are solved.

The present invention relates to a method for regulating the adhesion force between molten aluminum and a solid interface by changing heat transfer characteristics. The method comprises the following steps: (1) using a piece of solid aluminum as a probe, and using a piece of solid silicon and a piece of solid aluminum as substrates to form an aluminum-aluminum system and an aluminum-silicon system, respectively; (2) establishing a molecular dynamics liquid-solid adhesion model composed of the probe and the substrate; (3) measuring the adhesion force between the liquid-solid interface after the system reaches equilibrium; (4) executing a simulation process and processing data: analyzing the energy transfer process of the liquid-solid interface, calculating the interfacial thermal conductivity during the adhesion process, extracting the phonon spectrum of the liquid contacting the solid substrate at the interface, and analyzing the relationship between the heat energy transfer efficiency and the phonon spectrum when the adhesion force between the probe aluminum liquid and the solid substrate changes under different contact interface conditions. The present invention combines molecular dynamics and quantum theory to reveal the heat transfer mechanism of adhesion between liquid aluminum and the solid aluminum / silicon interface when the temperature of the solid substrate increases.

The utility model relates to the technical field of scum salvage, and discloses a molten aluminum holding furnace scum salvage device, which comprises a moving mechanism and a salvage mechanism, the salvage mechanism is movably connected to the top of the moving mechanism, the salvage mechanism comprises a support unit and a filter unit, the support unit is movably connected to the top of the moving mechanism, and the filter unit is movably connected to the top of the moving mechanism. The filtering unit is fixedly connected to the side surface of the supporting unit. According to the dross fishing device for the molten aluminum holding furnace, by arranging the movable bottom frame, the flexibility of the device can be higher, the device can bear the fishing work of a plurality of holding furnaces, the fishing safety is improved through the mode that the connecting frame is matched with lifting driving, the scalding condition is prevented, and by arranging the working sequence of inhaling, filtering and removing, the working efficiency is improved. When the device is used, the fishing efficiency is higher, repeated fishing is not needed, the working efficiency is improved, and the device has the advantages of being high in automation degree, high in fishing efficiency, safe to operate and the like.

The invention discloses intelligent pouring equipment for aluminum alloy profile casting, and relates to the technical field of profile casting, and the intelligent pouring equipment comprises a feeding mechanism and a cooling mechanism; the feeding mechanism is provided with a diversion trench, one end of the diversion trench is used for introducing liquid aluminum alloy higher than the pouring temperature, the other end of the diversion trench is sequentially provided with a diversion pipe fitting and a valve kit, the diversion pipe fitting comprises a plurality of diversion branch pipes arranged in parallel, and the outer side wall of each branch pipe is provided with a temperature control assembly. The valve suite comprises a port sleeve and an adjusting valve, the adjusting valve is arranged at an inlet of the port sleeve, a discharging port corresponding to a mold feeding port is fixed below the flow guide groove, an outlet of the port sleeve is communicated with the discharging port, and outlets in the tail ends of the flow dividing branch pipes are all communicated with an inlet of the adjusting valve; the cooling mechanism is provided with a plurality of medium leading-in pipes and medium leading-out pipes, an inlet and an outlet of the temperature control assembly are connected and communicated with the tail ends of the medium leading-in pipes and the tail ends of the medium leading-out pipes respectively, and the cooling mechanism can control circulation on-off and flow of the pipes. The temperature can be accurately controlled, and casting defects are reduced.

The invention relates to a method for producing a die (1) for an aluminum casting process, which die (1) at least partly delimits a cavity (3) designed to receive liquid aluminum during the aluminum casting process, in which method a main body (2) of the die (1) is provided, said main body being made of a main-body material, and at least one reinforcing layer (6), which delimits the cavity (3) and is made of a reinforcing material that differs from the main-body material, is additively built on at least one portion (5, 14-16) of the main body (2) by means of an additive manufacturing method.