33 results about "Liquid aluminium" patented technology

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 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 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.

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 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 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.

A narrow-width titanium-aluminum solid-liquid composite material. The composite material comprises a titanium strip and an aluminum strip, which is formed by casting and rolling molten aluminum, wherein the titanium strip is made of pure titanium or a titanium alloy; and 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 greater than or equal to 60 N / mm. The tensile strength of the narrow-width titanium-aluminum solid-liquid composite material is greater than or equal to 300 MPa, the yield strength thereof is greater than or equal to 200 MPa, the composite surface shear strength thereof is greater than or equal to 180 MPa, and the elongation thereof is larger than or equal to 20%. The titanium-aluminum solid-liquid composite material has both good mechanical strength and bonding strength.

The utility model discloses a kind of aluminium bar processing melting casting moulds of convenient dismounting, including installation box body for installation, first electric telescopic link, second electric telescopic link, mould base and transmission rod fixedly installed in the inside of installation box body, the mould base is arranged in the inside of installation box body, and aluminium bar is installed in the inboard of mould base, the upper of mould base is provided with screw rod, and the outside of screw rod is installed with connecting block, and the lower end of connecting block is fixedly connected with the upper end of mould base, the transmission rod is installed on the front side upper end of installation box body, and the both ends of transmission rod are respectively provided with conical wheel. The aluminium bar processing melting casting mould of convenient dismounting, after liquid aluminium solidifies into aluminium bar, mould can be separated to form interval, avoid aluminium bar to be bonded in mould, convenient for the taking out of aluminium bar, and uniformly distributed cooling pipeline shortens the time needed to form aluminium bar, and after liquid aluminium is injected into mould, the sealing of device is guaranteed, improve security and product success rate.

A device of regulating a melting speed of an aluminum alloy smelting furnace burner. The device includes: a natural-gas flow-rate regulating assembly, an air flow regulating assembly; a natural gas burner, connected to the natural-gas flow-rate regulating assembly and the air flow regulating assembly and mounted in a melting zone of the melting furnace to melt aluminum alloy into an aluminum liquid; a scum filtration assembly, including a ceramic tube connected to a ceramic filter cylinder, a foam ceramic filter plate being merged in an aluminum liquid thermal-insulation pool; a rangefinder, mounted above the scum filter assembly; a controller for obtaining weights of the aluminum liquid corresponding to two adjacent time points, obtaining the actual melting speed according to a difference in the weights, and regulating the flow rate of the natural gas and the air flow to adjust the actual melting speed to reach a target melting speed.

The utility model relates to the field of motor rotor die-casting, in particular to a die-casting die for an asynchronous rotor iron core height automatic compensation process, an extrusion mechanism comprises an extrusion base plate, a guide base plate and a limiting base plate, a plurality of extrusion needles are arranged on the extrusion base plate, extrusion holes matched with the extrusion needles are arranged on the guide base plate, and the limiting base plate is arranged on the guide base plate. A containing groove is formed in the limiting base plate, a movable die core is arranged in the containing groove, a plurality of die-casting holes are formed in the movable die core in a cc mode, the front end of each extrusion needle penetrates through the corresponding die-casting hole to extrude the die, and a correcting device is arranged at the end of the movable die core. The die-casting mechanism comprises a fixed base plate and a fixed die core, the fixed die core and the movable die core are attached to form a die-casting cavity, and the die-casting cavity is used for storing liquid aluminum liquid until the liquid aluminum liquid is cooled and shaped. And the product quality of the asynchronous motor rotor is improved.

The application discloses a smelting device and smelting method for continuously casting and rolling aluminum liquid to produce aluminum plates, and relates to the technical field of aluminum plate smelting. The device comprises a smelting furnace, which comprises a furnace body and a smelting assembly. The smelting assembly is rotatably installed in the interior of the furnace body through a rotating shaft. The smelting assembly is controlled to rotate so as to make the liquid aluminum formed in the process of smelting aluminum ingots flow and make the aluminum ingots in a softened state sink into the aluminum liquid. The smelting assembly is sequentially provided with a first smelting position, a second smelting position and a third smelting position from top to bottom. The smelting assembly is rotatably arranged in the smelting furnace. The smelting assembly is sequentially provided with the first smelting position, the second smelting position and the third smelting position from top to bottom. The smelting assembly is controlled to rotate so as to make the liquid aluminum formed in the process of smelting aluminum ingots flow and make the aluminum ingots in a softened state sink into the aluminum liquid. The uniformity of the heating of the aluminum ingots is improved. Local heating of the aluminum ingots is avoided. The melting of the aluminum ingots is more rapid. The smelting efficiency of the aluminum ingots is improved.

This invention discloses a self-heating aluminum melting furnace. The furnace includes a furnace body with a feed inlet. Inside the furnace body are a burner, an aluminum ingot melting platform, and a molten pool. A discharge outlet is located at the bottom of the molten pool. Aluminum ingots are placed on the melting platform through the feed inlet. The high-temperature flue gas generated by the burner melts the aluminum ingots, and the resulting liquid aluminum flows into the molten pool and is then discharged through the discharge outlet. A heat exchange channel connects the burner inside the furnace with the working space of the aluminum ingot melting platform and the molten pool. In actual operation, the operator controls the internal pressure of the furnace to allow the high-temperature flue gas to enter the molten pool from the working space above the aluminum ingot melting platform via the heat exchange channel, and finally exit from below the molten pool. Compared to the traditional method of directly introducing flue gas into the heat storage body, this invention increases the heat exchange process between the flue gas and the molten aluminum, improves the utilization level of waste heat from the flue gas, and reduces the temperature difference within the heat storage body, thus improving the economic efficiency of aluminum ingot melting.

The application discloses a production method of high-strength high-silicon aluminum alloy which can be quickly extruded by using recycled waste aluminum, and comprises the following steps: crushing and screening aluminum waste to leave aluminum-containing fragments, and sorting the aluminum-containing fragments to obtain aluminum material; preheating the aluminum material and melting the aluminum material into a liquid aluminum melt A; refining the melt A, stirring and skimming, and blowing gas to remove hydrogen; adjusting the components of the refined melt to obtain an aluminum alloy melt B; adding AlTiB wires into the melt B, and obtaining a melt C after online degassing and filtration; casting the melt C to obtain an aluminum alloy round ingot D; and homogenizing annealing the round ingot D to obtain an aluminum alloy round ingot E, and completing the production and processing of the high-strength high-silicon aluminum alloy. The application uses recycled waste aluminum as the raw material, has high tolerance for the contents of Si and Fe, realizes the level-keeping utilization of the waste aluminum, solves the immature problem of the use of the recycled aluminum in the extruded profiles, and has important significance for the recycling of aluminum resources and the sustainable development of the aluminum production industry.

The invention relates to manufacturing of metal powder, and discloses a controllable preparation method of semiconductor-grade superfine spherical aluminum powder, which comprises the following steps: preparing composite molten salt consisting of matrix salt and interface pinning agent calcium fluoride, and heating to a dispersion temperature to form homogeneous melt; shearing and dispersing molten aluminum into the melt; temperature-controlled solventing-out is executed, and the cooling rate is controlled, so that calcium fluoride is separated out in situ and adsorbed to form a physical pinning shell layer before the molten aluminum drops are solidified; according to the method, a microcosmic physical barrier is constructed before liquid drops are solidified by utilizing the solubility temperature change characteristic, liquid drop coalescence is effectively blocked through the steric hindrance effect, and the high sphericity degree and extremely narrow particle size distribution of the aluminum powder are achieved; and meanwhile, calcium fluoride microcrystals are used for inducing to generate a compact aluminum fluoride oxide composite passivation layer, so that the electrochemical migration resistance and the insulation reliability of the powder are improved.

The utility model relates to the technical field of aluminum electrolytic capacitors, in particular to an aluminum capacitor welding process strip, which comprises a support strip provided with a welding area. The plurality of aluminum foils are sequentially welded on the welding area along the interval arrangement; wherein a positive and negative electrode isolation wire is formed at the set position of the aluminum foil, the aluminum foil is divided into a positive electrode layer and a negative electrode layer by the positive and negative electrode isolation wire, the positive electrode layer is arranged towards the side where the supporting strip is located, the negative electrode layer is arranged away from the side where the supporting strip is located, and a through hole is formed in the positive electrode layer. In this way, the problems that in the welding process of an existing laminated solid aluminum electrolytic capacitor, the welding conductivity is low, and liquid aluminum is extruded to flow out and crystallize are solved.

The invention discloses a corrosion-resistant aluminum-coated steel core aluminum stranded wire. A preparation method of the corrosion-resistant aluminum-coated steel core aluminum stranded wire comprises the following steps: (1) preliminarily forming a raw material; (2) primary processing treatment; (3) finish machining treatment; (5) surface paint treatment; (6) twisting treatment; (7) detection treatment; the primary forming raw material comprises the following steps: (1) smelting an aluminum material to melt the aluminum material into molten aluminum, injecting the molten aluminum into an aluminum strip, and forming the aluminum strip into an aluminum wire with the diameter of 1-8mm by adopting a wire drawing machine; and (2) steel is selected, a steel core with the diameter being 3-6 mm is manufactured through a drawing machine, the primary machining treatment is that the aluminum wire and the steel core are subjected to acid pickling for 1-3 min, the concentration of an acid pickling solution is 1%-3%, and the PH value of the acid pickling solution is 1.5-2. According to the corrosion-resistant aluminum-coated steel core aluminum stranded wire, the aluminum wire and the steel core are treated, so that the aluminum wire and the steel core are enabled to be fused more thoroughly during subsequent painting treatment, and the processing efficiency is also higher.

The utility model discloses an aluminum alloy casting pouring device, which belongs to the technical field of aluminum alloy casting and comprises a pouring container, a feed opening formed by the pouring container and used for liquid aluminum to flow out of the pouring container, two hanging lugs and an iron ball arranged at the feed opening. The radius of the iron ball is larger than that of the discharging opening. The fixed platform comprises two sliding rails, the sliding rails are symmetrically arranged with the pouring container as the center, the hanging lugs are slidably connected with the sliding rails through sliding parts, the fixed platform further comprises a magnetic attraction block capable of magnetically attracting the iron balls, and the magnetic attraction block is installed on one sliding rail; in this way, in the process that the sliding piece moves downwards along the track of the sliding rail, the iron block can be attracted by the magnetic attraction block under the action of magnetic force to deviate, liquid metal in the pouring container can flow out through the discharging opening, a worker does not need to hold the container by hand to pour the liquid metal, and the operation efficiency and safety are improved.

The embodiment of the utility model provides a continuous feeding mechanism and evaporation equipment. The continuous feeding mechanism comprises a wire feeding disc, a melting assembly, a traction assembly and an aluminum wire, the melting assembly comprises a melting sleeve and a heating part, a melting channel is formed in the melting sleeve, and an outlet of the melting channel is located in the bottom of the melting sleeve; the traction assembly comprises a traction wheel and a clamping wheel, and the traction wheel is connected with the output shaft end of the traction motor; the tail end of the aluminum wire is wound on the wire feeding disc, and the front end of the aluminum wire penetrates into the melting channel after passing through the traction assembly; the aluminum wire is clamped between the side face of the rim of the traction wheel and the side face of the rim of the clamping wheel. After the technical scheme is adopted, an aluminum material is not directly evaporated from a solid state like a traditional technology, the aluminum material can be firstly heated to be changed into a liquid state from the solid state, and then the liquid aluminum material in the evaporation tank is heated for evaporation, so that the problem that the aluminum material is sputtered frequently in the existing operation is avoided; and therefore, the continuous film plating length can be greatly increased.

The invention discloses a liquid aluminum electrolytic capacitor, and relates to the technical field of electrolytic capacitors. The liquid aluminum electrolytic capacitor is prepared by the following steps of: sequentially overlapping and winding anode foil, first electrolytic paper, cathode foil and second electrolytic paper into a core package; and the core package is subjected to electrolyte impregnation treatment, and after the core package is put into a shell and packaged, the liquid aluminum electrolytic capacitor is obtained. The electrolyte at least comprises the following raw materials in parts by mass: 60-75 parts of N, N-dimethylformamide; 15 to 25 parts of ethylene glycol; 3-5 parts of boric acid; 1.5 to 3 parts of ammonium formate; 1-3 parts of silicon-boron modified polyethylene glycol adipate; 0.5 to 1.5 parts of triethylamine; 0.3 to 0.7 part of ammonium hypophosphite; and 0.2 to 0.5 part of p-nitrobenzoic acid. The electrolyte prepared by the invention endows the liquid aluminum electrolytic capacitor with wide temperature range adaptability, high voltage tolerance and long service life stability.

A liquid aluminum dihydrogen phosphate production and storage device comprises a feeding device, a reaction kettle, a filtering device and a storage device which are arranged in sequence, and the feeding device, the reaction kettle, the filtering device and the storage device are sequentially communicated through pipelines. During use, water is added into the feeding tank through the water adding pipe, the feeding stirring assembly is started for stirring, aluminum hydroxide is secreted and added into the feeding tank through the feeding bin, and uniform slurry obtained through stirring is discharged into a reaction kettle; when the aluminum dihydrogen phosphate is produced, water and phosphoric acid are added from the reaction feed port, the reaction stirring assembly is started, the temperature is raised to 75-90 DEG C, the mixed slurry in the feeding device is added from the reaction feed port and reacts for a period of time, and the produced aluminum dihydrogen phosphate is discharged into the filter to be filtered and purified. Purified aluminum dihydrogen phosphate is discharged into a storage tank through a storage feed port, then a storage diaphragm pump and a circulating return pipe are started, and aluminum dihydrogen phosphate circularly flows back for a period of time, so that the quality of products in the tank is uniform and stable.

The invention discloses a preparation process of a high-wear-resistance aluminum alloy cable. The preparation process of the high-wear-resistance aluminum alloy cable comprises the following steps: (1) smelting raw materials; (2) continuously casting the raw materials; (3) drawing and forming the aluminum strip; (4) hardening treatment; (5) surface paint treatment; (6) twisting treatment; (7) detection treatment; the smelting raw material comprises the steps of selecting an aluminum alloy material, smelting the aluminum alloy material by adopting hydrogen to melt the aluminum alloy material into liquid aluminum, and then injecting the liquid aluminum into an aluminum strip, and the continuous casting raw material comprises the steps of continuously drawing and cooling the liquid aluminum in the aluminum strip to form the aluminum strip. According to the preparation process of the high-wear-resistance aluminum alloy cable, the two thin wires are wound and twisted to form the double-strand wire piece, and then the two double-strand wires are wound and twisted to form the finished wire, so that the whole wire has higher toughness and higher strength and is not easy to break.

The application discloses a method for preparing an aluminum-lithium alloy by a molten salt electrolysis method, wherein Li2CO3 is used as a lithium source, LiF and LiCl are used as electrolytes, liquid aluminum is used as an aluminum source and a cathode, and a metal ceramic is used as an anode; direct current electrolysis is carried out under the conditions that an anode current density is 0.4 A / cm2-0.8 A / cm2, an anode voltage is 3.5 V or less, and an electrolysis temperature is 680 DEG C-700 DEG C, and an aluminum-lithium alloy is obtained at the cathode; wherein an initial adding amount of the lithium source is 4%-8% of the mass of the electrolyte, and the lithium source is supplemented during the electrolysis process to keep the anode voltage to be 3.5 V or less. The method can avoid the generation of chlorine and reduce anode loss.

This invention provides an aluminum-doped silicon carbide-based special ceramic composite material, its preparation method, chassis, and semiconductor device, belonging to the technical field of silicon carbide composite materials. This application synthesizes a polymer precursor with aluminum, silicon, and carbon elements uniformly distributed at the molecular level. Subsequently, this precursor is mixed with polystyrene microspheres as a sacrificial template, and subjected to stepwise heat treatment. At low temperature, the mixture crosslinks and solidifies, decomposing the template to form pores. At high temperature, it crystallizes into a porous silicon carbide framework uniformly doped with aluminum atoms. Then, molten aluminum-silicon alloy is filled into the framework using a vacuum infiltration method. During infiltration, the liquid aluminum-silicon alloy reacts with residual carbon on the framework surface at the interface, forming an interface region containing Al, Si, and C elements between the metal and ceramic phases, improving the interfacial bonding between the metal and ceramic. The resulting bicontinuous interpenetrating network structure effectively combines the hardness of ceramics with the toughness and high conductivity of metals.