76 results about "Melting rate" patented technology

The invention provides a freezing display cabinet which comprises a cabinet body, an inner container is arranged in the cabinet body and used for containing articles, and an opening is formed in one side of the cabinet body; the cabinet door is arranged at the position of the opening, and the cabinet door is used for closing or opening the opening; the first air duct assembly produces low-temperature air to refrigerate the interior of the cabinet body, the first air duct assembly comprises a first air duct, a first fan and a first evaporator, and the first fan and the first evaporator are installed in the first air duct; the second air duct assembly is used for manufacturing an air curtain to separate air inside and outside the cabinet body and comprises a second air duct, a second fan and a second evaporator, and the second fan and the second evaporator are installed in the second air duct; and the heat preservation curtain is arranged in the second air duct and can shield the inner side of the cabinet door when power is off, so that the melting rate of articles placed in the cabinet body is slowed down.

A method (200) for operating an inductive melting system (100) which has at least one induction coil (122) for melting an electrode (E), comprises determining (210) a net heating power of the inductive melting system (100) by means of a control device (160) of the inductive melting system (100). The method also comprises determining (220) a melting rate by means of the control device (160), ascertaining (230) a superheating temperature of the melted-off electrode material (S) at least partly on the basis of the net heating power and the melting rate by means of the control device (160), and controlling (240) at least one operating parameter of the inductive melting system (100) on the basis of the ascertained superheating temperature by means of the control device (160).

The present invention discloses a method for preventing breakout in a high-speed billet continuous casting machine. During continuous casting, the billet continuous casting machine operates at a casting speed of 3.5 to 5.5 m / min and a mold taper of 1.9 to 2.2% / m. The mold flux used has a melting point of 1055 to 1095°C, a melting rate of 25 to 33 seconds, and a viscosity of 0.09 to 0.13 Pa·s. When the casting speed is 3.5 to 4.0 m / min, the tundish molten steel temperature must not exceed 1535°C. When the casting speed is 4.0 to 5.5 m / min, the tundish molten steel temperature must not exceed 1530°C. The present invention controls breakout in the mold or at the foot roll section by adopting an appropriate mold copper tube taper and using a mold flux with an appropriate melting point, melting rate, and viscosity. This method achieves stable high-speed production for the billet continuous casting machine, resolves the difficulty in handling breakouts and the inability to complete production plans due to high casting speed breakouts, and improves the billet yield.

The present application relates to the technical field of metallurgical equipment operation control, and particularly relates to a rough copper sluice heat preservation and operation control method based on bonding-melting balance, comprising the following steps: establishing a bonding strength-melting rate-temperature-preservation parameter correlation model, and determining a critical temperature interval when bonding and melting are balanced; according to the balance model and real-time production data, the temperature of the inner wall of the sluice is monitored in real time through a temperature sensor, when the temperature is lower than the critical temperature interval, the electric heat tracing device is started to supplement heat, when the temperature is higher than the critical temperature interval, the opening degree of the heat preservation cover plate is adjusted; before the rough copper is discharged, the heat preservation system is started in advance, and the sluice is preheated to the lower limit of the critical temperature interval; during the discharge process, the rough copper flow rate is controlled; after the discharge is completed, the heat preservation system is kept running. Through the whole-process management and control of preheating, operation process regulation and control and subsequent heat preservation, the dynamic balance of bonding and melting of the rough copper on the inner wall of the sluice is realized.

The invention belongs to the technical field of single crystal production, and relates to a method for determining seeding power, which comprises the following steps: recording melting starting time h1, recording melting ending time h2 when a solid-to-liquid ratio reaches a preset value, and obtaining actual melting time H (H = h2-h1); recording the initial crucible material weight a and the actual melting time H, and calculating the melting rate v, wherein v is equal to a / H; calculating a non-first furnace power compensation value Kb according to the melting rate V; and calculating non-first furnace seeding power K according to the first furnace seeding power Ka and the non-first furnace power compensation value Kb, wherein K = Ka + Kb. The method has the beneficial effects that the melt finishing signal is accurately collected through the change of the solid-to-liquid ratio, and the non-first furnace seeding power is calculated through the melt rate, so that the accuracy of the initial seeding power is improved, the initial first shoulder expansion survival rate, the one-time crystallization rate and the whole rod rate can be increased, and the production cost is reduced. And the seeding power recommended on the basis of the thermal field thermal insulation performance condition is combined with the SOP parameters, so that the equal-diameter pulling speed can be better matched, and the pulling speed scattering difference is reduced.

This invention relates to the field of alloy forming technology, specifically to a method for preparing Ti-Al medium-entropy alloys based on selective laser melting. The method includes preparing raw material rods, gas atomization powder preparation, 3D modeling, preheating and forming the matrix, powder spreading and leveling, 3D printing pretreatment, pre-powder spreading, and laser printing. This method features high melting rate and high solidification rate, forming unique microstructures such as ultrafine grain structure, metastable phases, and supersaturated solid solutions. By combining alloy composition design, gas atomization powder preparation, and selective laser melting, the resulting parts possess excellent comprehensive mechanical properties and can be used to prepare complex structural parts. Furthermore, it features a short preparation cycle, high material utilization, and rapid forming.

This application relates to a method for preparing high-purity iron, comprising the following steps: forming an electrode rod from pure iron raw material; subjecting the electrode rod to vacuum arc melting; the vacuum arc melting includes an arc initiation stage, a melting stage, and a feeding stage; the melting current in the arc initiation stage is 1.5 kA~3.0 kA, and the arc stabilization current is 4 A~10 A; the melting current in the melting stage is 2.5 kA~3.5 kA, the melting rate is 2.5 cm / min~5.5 cm / min, and the arc stabilization current is 8 A~20 A; the melting current in the feeding stage is 1.2 kA~3.3 kA, the melting rate is 1 cm / min~4.5 cm / min, and the arc stabilization current is 4 A~11 A. This method can effectively reduce the density and refine the size of inclusions in pure iron, while also making the inclusions dispersed in the material. The high-purity iron prepared by this method has a significantly reduced inclusion density, small inclusion size, and is in a dispersed state, which meets the manufacturing requirements of iron-based supports.

The invention relates to the field of photoelectric function crystal material growth, in particular to a high-optical-uniformity potassium tantalate niobate crystal grown through a floating zone method and a method. The method comprises the following steps: (1) calculating a raw material ratio, and determining components of a flux charge bar and a supply bar; (2) performing two-step sintering and cold isostatic pressing to form a raw material rod; (3) carrying out crystal growth by adopting an optical floating zone furnace, regulating and controlling the melting rate of a feeding rod and melt convection, and ensuring stable components; and (4) carrying out thermal annealing treatment in an oxygen environment to improve the performance of the crystal and obtain the high-quality KTN crystal with the component uniformity of 10 <-5 > / mm. A precious metal crucible is not needed, the technological process is simplified, the equipment and material cost is reduced, the raw material utilization rate is remarkably increased, and the method is suitable for large-scale production.

The invention discloses a preparation method of a high-Cr-content nickel-based corrosion-resistant alloy bar, which comprises the following steps: smelting a Ni-based alloy raw material in a vacuum induction furnace, pouring into an electrode bar, and controlling the components to be less than 0.02% of C, 43.50%-45.30% of Cr, 0.80%-1.20% of Mo, 0.10%-0.30% of Ti, less than or equal to 30ppm of N and the balance of Ni and inevitable impurities; the electrode bar is subjected to electroslag remelting in an argon filling atmosphere, a CaF-AlO-CaO-MgO slag system is used, and the melting speed is controlled to be 2.5-3.0 kg / min; and then the electroslag ingot is subjected to multi-heating-number forging, the single-heating-number deformation is controlled to be 30%-50%, and a bar with the diameter phi being 120 mm is manufactured. According to the preparation method, through cooperative control over nitrogen control, low impurity, protective smelting and multi-heating-number forging, the forging plasticity and the yield of the alloy are remarkably improved, the obtained bar is excellent in comprehensive mechanical property, the tensile strength is larger than or equal to 690 MPa, the yield strength is larger than or equal to 310 MPa, the percentage elongation after fracture is larger than or equal to 30%, and the preparation method is suitable for high-corrosion environments such as chemical engineering and petrochemical engineering.

The invention relates to the technical field of the glass manufacturing industry, in particular to a control method and device for increasing the melting rate of a kiln, equipment and a storage medium. Heating element identifiers and element output power corresponding to each heating element identifier are obtained according to the kiln heating temperature; the real-time kiln heating temperature is compared with a preset temperature curve, the output power of each element is adjusted according to the comparison result, and a kiln temperature control result is obtained; the current in-furnace pressure is obtained, calculation is conducted according to the current in-furnace pressure, and an in-furnace air pressure adjusting instruction is obtained; and when the in-furnace air pressure adjusting instruction and the in-furnace air pressure adjusting result are obtained, generating an in-furnace gas dynamic switching instruction according to the in-furnace air pressure adjusting result so as to respond to a glass preparation instruction. The method has the effect of solving the problem that the melting rate of a current kiln is low.

This invention provides a method for producing a metal mask for OLED pixel deposition, relating to the technical field of metal masks. The method includes the following steps: processing raw materials using a VIM+PESR+VAR triple smelting process; VIM process: melting vacuum degree < 5 Pa, melting temperature between 1480℃ and 1520℃, refining temperature between 1530℃ and 1570℃, and refining time set between 28 and 32 minutes; PESR process: using an inert protective atmosphere, a fill ratio set between 0.5 and 0.8, a current set between 9kA and 14.5kA, and a voltage set between 55V and 60V; VAR process: melting vacuum degree < 0.5 Pa, fill ratio set between 0.6 and 0.9, and melting rate < 5 kg / min. This method achieves the technical effect of reducing the probability of pinholes appearing on the metal mask.

The invention discloses a titanium alloy coarse particle powder recovery EIGA atomization method, and aims at solving the technical problems that an existing titanium alloy coarse particle powder recovery process is complex, melt pollution is likely to be caused, the fine powder conversion rate is low, and industrial batch production cannot be achieved. According to the method, the titanium alloy coarse powder with the particle size larger than 53 microns, which is a byproduct produced by gas atomization powder preparation, is used as a raw material, the steps of raw material pretreatment, closed type controllable powder feeding, sectional type induction smelting, controllable flow guiding and atomization, spheroidizing solidification and graded collection are sequentially conducted, the powder feeding rate and the melting rate are dynamically matched in real time, the yttrium oxide sleeve sectional induction heating process is combined, and the titanium alloy powder with the particle size larger than 53 microns is obtained. The coarse powder is directly converted into high-added-value titanium alloy fine powder; according to the method, the technological process is short, 24-hour continuous industrial production can be achieved, the oxygen content of the prepared regenerated powder is smaller than or equal to 800 ppm, the total yield of the high-added-value powder is larger than or equal to 65%, and the performance of the powder completely meets the high-end powder use requirements of additive manufacturing and metal injection molding.

The utility model belongs to the technical field of injection molding machines, and relates to a desktop type pure electric servo horizontal injection molding machine which comprises a desktop type pure electric servo horizontal injection molding machine main body, and a blanking pipeline is arranged on one side of the top of the desktop type pure electric servo horizontal injection molding machine main body; and one end of the discharging pipeline is connected with a discharging hopper, inclined supporting plates are fixedly connected to the two sides of the discharging hopper, and the other ends of the inclined supporting plates are fixedly connected to one side of the top of the desktop type pure electric servo horizontal injection molding machine body. Through the arrangement of the screening assembly, the situation that injection molding raw materials are caked and different in size can be reduced, and therefore the situation that due to the fact that the raw materials are caked or different in size, the melting rates of the raw materials are prone to being different, semi-molten cores and agglomerated holes appear in a melt is prevented; further, crazing, flow marks, shrinkage cavities and other defects are generated on the surface of an injection-molded product.

The utility model discloses a cored wire. The cored wire comprises an inner core and a protective layer group, the inner core is of a solid cylindrical structure; the whole protective layer group is annular and is arranged around the periphery of the inner core, the protective layer group comprises an inner protective layer, an outer protective layer and an outer core, the inner protective layer and the outer protective layer are distributed at intervals in the radial direction of the inner core, the inner protective layer is attached to the periphery of the inner core, the outer core is clamped between the inner protective layer and the outer protective layer, and the melting point of the outer core is larger than that of the inner core. According to the cored wire, the melting rate of the cored wire can be delayed, and the yield of required elements in molten steel is increased.

The application relates to the technical field of alloy materials, in particular to a high-thermal-conductivity copper-zirconium alloy and a preparation method thereof, which comprises the following steps: raw material pretreatment, segmented vacuum melting, gradient solidification forming and gradient aging modification; the third-stage cooling end temperature of the gradient solidification forming is consistent with the first-stage temperature rising starting temperature of the gradient aging modification, and the holding time of the gradient solidification forming and the holding time of the gradient aging modification are matched in a ratio of 1:0.05-0.08; in the technical scheme, the raw material pretreatment link serves as the basis of the preparation process, the raw materials such as electrolytic copper and zirconium blocks are processed to a specific size range, and the consistency of the melting rate of the raw materials in the melting process is ensured; the combination mode of vacuum drying, nitrogen blowing and closed transfer removes the water and impurities adsorbed on the surface of the raw materials from the source, simultaneously avoids oxidation caused by air contact in the transfer process, and provides raw material purity guarantee for the uniformity of the subsequent alloy components.

The present invention discloses a rapid smelting medium frequency furnace, which aims to solve the problem that the added materials are prone to form local accumulation, resulting in uneven heating of the metal material during the melting process, the metal material is difficult to melt, and the melting speed decreases. The key points of its technical solution are: it includes a furnace body, a distribution rack that can be moved to the furnace mouth position is slidably provided on the furnace body table, and a plurality of partition plates are provided on the distribution rack. A discharge plate is slidably provided on the side of the distribution rack close to the furnace mouth, and the discharge plate is connected to a driving assembly, and one end of the driving assembly extends to the outside. The present invention effectively avoids excessive or insufficient local accumulation by evenly distributing the materials. A positioning assembly for equally dividing the spacing between the plurality of partition plates is provided on the distribution rack. The spacing between the partition plates is equal through the positioning assembly, thereby ensuring the material distribution effect.

The invention relates to the technical field of ferrous metallurgy, in particular to a control method for reducing impurities on the surface of a medium-thickness plate, which comprises the following steps: firstly, when a tundish is pulled before butt joint, casting powder is melted well and thoroughly, the surface of a crystallizer is covered with a thin layer of liquid slag before running, and a special slag salvaging tool is configured to salvage redundant slag in the crystallizer; the temperature of molten steel in a furnace before butt joint is increased by 5 DEG C so as to reduce caking and cold steel formed on the surface of a blank shell, butt joint casting furnace casting slag is achieved, the content of CaO in the casting powder is increased, the melting point, the melting speed and the viscosity of the casting powder are increased, the melting speed of the casting powder is controlled, the consumption of the casting powder and the thickness of a glass slag layer are reduced, and full-process protective casting is adopted in the final casting process. According to the method disclosed by the invention, by optimizing the field operation of the butt joint process, increasing the viscosity of the casting powder and the surface tension between liquid steel interfaces, adding a protective casting device and the like, the occurrence rate of inclusion on the surface of the medium-thickness steel plate is effectively reduced through the synergistic effect of all the steps.

The invention relates to a furnace for melting vitrifiable material, comprising: (i) a melting tank (M) comprising at least one upstream zone (Z1) covered by a furnace top (C1) and having electric heating means, a downstream zone (Z2) covered by a furnace top (C2) and having combustion heating means, and a transition zone (T) between (C1) and (C2); (ii) a clarification tank (F) with combustion heating means; (iii) a neck (N) covered by the furnace top (C3) and separating the melting tank (M) from the clarifying tank (F); (iv) at least one inlet means (X) located at the melting tank; (v) outlet means (O); and (vi) flue gas extraction means in the zone (Z1); wherein the height (H1) of the furnace top (C1) is defined by H1 < = 0.75 * H2; h2 is the height of the furnace top (C2); the length (L1) of the zone (Z1) is defined by 0.25 * (L1 + L2) < = L1 < = 0.8 * (L1 + L2); (L2) is the length of the zone (Z2); and the length (LT) of the transition region is defined by LT < = 0.2 * (L1 + L2). Such a furnace allows for a reduction in overall energy consumption while maintaining a high fraction of electrical input (thereby reducing CO2 emissions), maintaining acceptable surface melting rates, and extending furnace life.

The invention relates to the technical field of industrial furnace melting process monitoring and control, in particular to a method, a device and equipment for calculating the melting process of batch in a glass furnace. The method comprises the following steps: S1, acquiring image data of a melting area through an endoscope arranged at the front end of a kiln, and acquiring temperature and infrared emissivity information of corresponding pixel points; s2, processing the image data based on the temperature and infrared emissivity information, and distinguishing a batch area and a melt area to obtain a mask image of the batch area; s3, according to the mask image, calculating the proportion value of the pixel area of the batch area to the total pixel area of the melting area, and taking the proportion value as the overall melting rate; s4, comparing the proportion value with a preset ideal melting rate and an allowable deviation range to obtain a melting state judgment result; and S5, generating a working condition adjustment suggestion or a control instruction according to the melting state judgment result. According to the invention, quantitative evaluation and working condition adjustment of the glass kiln batch melting process are realized.

The invention belongs to the technical field of glass kiln auxiliary equipment, and relates to a rectangular glass all-electric melting kiln feeding machine and a feeding method.The rectangular glass all-electric melting kiln feeding machine is characterized in that a guide rail supporting frame is slidably installed on a feeding machine guide rail through a feeding machine transverse moving transmission device, and a feeding arm is slidably installed on the guide rail supporting frame through a feeding arm displacement device; the feeding system is erected above the feeding arm through a feeding fixing frame, the feeding arm is movably sleeved with a feeding belt, and a belt adjusting system, a water-cooling heat exchanger and a data monitoring module are arranged in the feeding arm. The guide rail supporting frame slides on the feeding machine guide rail, the feeding arm slides on the guide rail supporting frame, the feeding position and the feeding mode are flexibly adjusted, and real-time adjustment is conducted according to the change of the melting speed in the all-electric melting furnace in combination with real-time monitoring of the data monitoring module; the problem of unreasonable batch distribution caused by melting speed difference in different areas in the kiln is effectively solved; and the phenomenon of dead material area formation caused by raw material accumulation due to too slow melting in a local area is reduced.

A method (200) for operating an inductive melting plant (100) comprising at least one induction coil (122) for melting an electrode (E) comprises determining (210) a net heating power of the inductive melting plant (100) by means of a control device (160). The method further comprises determining (220) a melting rate by means of the control device (160), determining (230) a superheat temperature of the melted electrode material (S) by means of the control device (160) at least partially based on the net heating power and the melting rate, and controlling (240) at least one operating parameter of the inductive melting plant (100) by means of the control device (160) based on the determined superheat temperature.

This invention discloses an intelligent control system for electrode melting rate based on start-stop control, belonging to the field of electrode melting rate control technology. First, based on quality constraint analysis, this invention obtains candidate melting rate ranges for the electrode. Then, based on environmental constraints, it filters these candidate melting rate ranges to obtain the optimal melting rate range for the electrode. Finally, based on the optimal melting rate range, it analyzes the electrode deviation correction rate. During deviation correction, the deviation correction time is compared with the time interval between time points to determine whether to perform deviation correction or stop the operation. This invention not only avoids the limitations of a single quality constraint or a single environmental constraint, but also avoids the target weakening problem caused by traditional weight settings. Furthermore, it avoids steel quality fluctuations caused by incomplete correction and continued deviation from the range during deviation correction, ensuring product quality stability.

The utility model discloses a consumable supply device for a 3D printer, and relates to the technical field of 3D printers. The device comprises a fixing device, the top of the fixing device is fixedly provided with a supporting mechanism, the supporting mechanism is internally provided with a driving device, the output end of the driving device is fixedly connected with a rotating mechanism, and the outer surface of the rotating mechanism is connected with a material roller in an inserted mode. According to the utility model, the plurality of groups of material rollers are arranged on the rotating mechanism, and when material supply is required to be carried out on the 3D printer, the driving device is connected with the back surface of the rotating mechanism, so that the driving device can drive the rotating mechanism to rotate for a certain angle once and then drive the material rollers outside the rotating mechanism to rotate to the conveying direction; and after material consumption of one group of material rollers is completed, the material rollers can be continuously rotated to convert the positions of the material rollers so as to achieve the effect of rapidly replacing materials, and the material rollers can be preheated in advance in the conveying process in cooperation with a preheating assembly on the jacking mechanism so as to improve the later-stage melting rate of the material rollers.

This invention discloses a method for preparing titanium alloy ingots with coordinated control of melting rate and cooling rate, specifically implemented according to the following steps: S1, establishing a finite element model of vacuum self-consuming arc melting of titanium alloy ingots, completing mesh generation, and setting core process and physical property parameters; S2, determining parameter gradient values ​​and calculating deviation; S3, dividing the melting process into three stages: arc initiation period, normal melting period, and feeding period, ensuring that the average elemental composition deviation throughout the process is within the range of 0.02~0.06; S4, evaluating and analyzing the composition at the head, middle, and tail points and the longitudinal section composition of the ingot after melting. This method solves the ingot quality problem caused by mismatched process parameters in existing VAR melting processes, improves ingot quality and performance, and reduces production costs.

Methods and systems include melting or augmenting a melt rate of material in a melter using electromagnetic radiation with a frequency between 0.9 GHz and 10 GHz. In some examples, a power and / or frequency of radiation used may be selected so as to control a temperature of a cold cap in the melter while maintaining emissions from the melter below a threshold level. In this manner, examples described herein may provide for efficient and safe melting and vitrification of radioactive wastes.

The present invention relates to the field of laser cladding technology, specifically, a deep hole laser cladding device. It comprises a laser generator, the lower side of the laser generator is rotatably connected with a center tube, a cladding shell is arranged on the outer side of the center tube, a plurality of spiral guide plates are arranged between the cladding shell and the center tube, and at least two feed channels and at least two air inlet channels are formed between adjacent guide plates; a cladding opening is provided at the lower end of the cladding shell, the lower end of the feed channel is connected with the lower end of the center tube, an annular ventilation cavity is provided on the outer side of the upper part of the feed nozzle, and a sealing plate is movably provided in the ventilation cavity. When the air inlet channel is ventilated, the sealing plate moves downward to connect the ventilation cavity with the cladding opening. The feeding rate of the cladding material is adjusted by rotating the center tube to avoid blockage of the cladding material, and the flow and cladding rate of the cladding material are adjusted by adjusting the rotation speed of the center tube and the air inlet rate in the air inlet channel, so as to realize the efficient deep hole cladding operation.

The utility model relates to the technical field of cable extruders, in particular to a quick feeding cable extruder which comprises an extruder body, a screw conveyor, a feeding cylinder, a crushing mechanism, an anti-bridging mechanism and a feeding bin, the screw conveyor is arranged on the extruder body and communicated with the extruder body, the feeding cylinder is arranged on the screw conveyor, and the crushing mechanism is arranged on the feeding cylinder. The feeding barrel is communicated with the spiral conveyor, the crushing mechanism is arranged in the feeding barrel and used for crushing raw materials in the feeding barrel, the bridging prevention mechanism is arranged in the feeding barrel and used for preventing the raw materials in the feeding barrel from bridging, the feeding bin is arranged on one side of the feeding barrel, and a feeding pipe is arranged between the feeding bin and the feeding barrel; and meanwhile, the stirring mechanism is arranged, so that blockage and bridging of the raw materials in the feeding barrel are avoided, and the problems that in the prior art, the melting rates of the raw materials are not consistent, and the bridging phenomenon of the raw materials in the hopper is likely to happen are solved.

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 application relates to the technical field of metal smelting, in particular to a rotary refining furnace, which comprises a cylinder body, the cylinder body comprising a side wall and end covers arranged on both sides of the side wall; a rotating mechanism connected with the cylinder body, the rotating mechanism driving the cylinder body to rotate within a preset angle range; and a first combustion device comprising a first burner arranged on the side wall of the cylinder body. The rotary refining furnace can greatly improve the melting rate of materials, shorten the melting time, save energy consumption, greatly improve the uniformity of heating and prolong the service life of the furnace lining.

The utility model belongs to the technical field of aluminum alloy casting, and particularly relates to an aluminum alloy melting furnace which comprises a melting furnace body and a protection plate arranged on the surface of the melting furnace body and further comprises a feeding assembly arranged on the surface of the protection plate. The feeding assembly comprises a feeding pipe, a funnel, a motor, an L-shaped plate, a transmission rod, a first synchronous wheel, a synchronous belt and a second synchronous wheel, the feeding pipe is arranged above the protection plate, the funnel is fixedly connected to an opening in the upper surface of the feeding pipe, the L-shaped plate is fixedly connected to the surface of the feeding pipe, the motor is installed on the surface of the L-shaped plate, and the transmission rod is fixedly connected to the transmission rod. The end part of an output shaft of the motor is fixedly connected with the transmission rod; materials can be automatically put into the melting furnace, potential safety hazards of workers in the machining process are reduced, aluminum alloy can be cut, the reaction area is increased, and therefore the melting speed is increased.