3432 results about "Ladle" patented technology

The invention provides a manganese-silicon alloy and a production method thereof, and the production method comprises the following steps: respectively crushing a manganese-containing material, silica and coke in proportion, mixing with a dephosphorizing agent, adding a binder and a proper amount of water to prepare a premix, pressing the premix into smelted pellets, and drying; the dried smelting pellets are put into a closed electric furnace to be smelted, and alloy melt is obtained; transferring the alloy melt into a steel ladle, and blowing magnesium powder for desulfurization; the desulfurized alloy melt is subjected to slagging-off, and manganese-silicon alloy molten iron is obtained; and the manganese-silicon alloy molten iron is poured into a mold for ingot casting, and a manganese-silicon alloy finished product is obtained after cooling. According to the method, the raw materials such as the manganese material, the silica, the coke and the dephosphorizing agent are crushed respectively and then mixed, briquetted and smelted, so that the dephosphorizing and desulfurizing effects can be improved, and sulfur in the alloy can be further removed by spraying magnesium powder outside the furnace for desulfurization, so that the quality of the manganese-silicon alloy is improved.

The invention discloses a powder spraying refining process for production of a rare earth oxide dispersion strengthened alloy, and belongs to the technical field of alloy smelting. During converter tapping, iron silicon aluminum 4.5-8.5 kg / t is adopted for strong deoxidation; after tapping is finished, 0.2-0.4 kg / t of rare earth aluminum alloy is added to the slag surface of the steel ladle for slag surface deoxidation; molten steel is conveyed to a powder spraying station, the temperature of the molten steel is regulated and controlled to be 1570-1610 DEG C, inert carrier gas is used for spraying rare earth powder into the molten steel at a high speed, the carrier gas conveying working pressure of steel ladle powder spraying is 3.0-4.0 bar, the carrier gas flow is 40-60 m < 3 > / h, the steel ladle powder spraying speed is 10-50 kg / min, and the dosage of the powder spraying agent is 1.0-50.0 kg / t. After the powder spraying refining process is adopted, the solid solution oxygen content in the steel can be increased to 100 ppm or above, and the solid solution content of RE elements can be increased to 300 ppm or above, so that nano rare earth oxide dispersion strengthened alloy is formed.

The invention discloses a converter body mounting and positioning system and method based on a buggy ladle, and belongs to the technical field of converter mounting and positioning. According to the converter body mounting and positioning system, the position detection device is used for detecting whether position deviation exists on the two sides of the converter body or not in the in-place conveying process and detecting the alignment condition of the converter body and bolt mounting holes in a converter support; when the converter body has installation position deviation, the steel rail on the corresponding side is clamped through the speed reduction clamping device; when the converter body reaches the braking distance, the steel rails on the two sides are clamped at the same time, and simultaneous speed reduction of the single side or the two sides of the buggy ladle is achieved; and after the converter body is in place, the steel rail is clamped and locked through the brake locking device, so that parking brake of the buggy ladle is realized. In the conveying process of the converter, through accurate control and auxiliary braking of the buggy ladle, high-precision automatic in-position of the converter body can be achieved, and the installation efficiency and the installation precision are improved.

The invention relates to the technical field of steel and iron smelting, and particularly discloses an ultra-low sulfur steel smelting method, which comprises the following steps of: washing a converter and washing a steel ladle before converter smelting; in the desulfurization process, high-temperature molten iron is used, deep desulfurization is conducted through a KR desulfurization method, and the sulfur content of the molten iron is smaller than or equal to 0.003%; converter working procedure: smelting by using a top-bottom combined blown converter, adopting a single-slag remaining method, adding self-produced first-class scrap steel, using low-sulfur lime, dolomite and iron-containing oxide, and controlling the end point of the converter: controlling the tapping carbon to be less than or equal to 0.04%, sulfur to be less than or equal to 0.005% and the temperature to be more than or equal to 1610 DEG C, adding lime for slag washing in the tapping process, adding part of lime for thick slag treatment after the tapping is finished, and then performing slagging-off operation; a refining process: adding lime and refining slag for slagging and desulphurizing, and finely adjusting components and raising the temperature; a continuous casting process: carrying out continuous casting; and finally, sulfur in a casting blank smelting finished product is less than or equal to 6ppm.

The invention relates to the technical field of thin-strip cast rolling, and provides a thin-strip cast rolling tundish continuous casting device and method.The thin-strip cast rolling tundish continuous casting device comprises a base frame horizontally installed on the surface of a foundation, and the base frame is provided with a flow distribution ladle, a tundish and a large ladle from bottom to top; an adjusting mechanism is arranged below the position, where the casting position is arranged, of the base frame, the adjusting mechanism comprises two limiting plates which are symmetrically arranged, and one side of the middle of each limiting plate is fixedly connected with a second motor for driving a crystallizer roller; and a baking oven fixed on the placing rack is arranged above the middle parts of the two motors II. According to the method, molten steel qualified in smelting is directly poured into the molten pool defined by the two crystallization rollers rotating oppositely and the side sealing plates through the large ladle, the tundish and the flow distribution system, the molten steel is cooled through the two crystallization rollers rotating oppositely to form the steel belt with the thickness of 1-5 mm, the production cost can be saved, the casting continuity is improved, the production efficiency is improved, and the yield is increased.

The invention provides bainite non-quenched and tempered steel and a preparation method thereof.The preparation method comprises the following steps that blast furnace molten iron is sequentially subjected to molten iron pretreatment, converter smelting, ladle refining, vacuum refining, vacuum degassing, continuous casting and rolling, and the bainite non-quenched and tempered steel is obtained; the content of P at the smelting end point of the converter is less than or equal to And the content of S in the molten steel subjected to vacuum refining is 0.038%-0.045%. The bainite non-quenched and tempered steel with excellent comprehensive performance is obtained through reasonable smelting, refining, continuous casting and rolling process design of blast furnace molten iron designed by adopting specific chemical components, the preparation process is simple, and the preparation cost is low.

The invention discloses a casting method of a shell, which comprises the following steps: a sand mold manufacturing step: placing a shell mold comprising a pouring system and an auxiliary feeding system on a jolt ramming table of resin sand mixing equipment, buckling a matched welding sand box, and filling sand grains mixed with resin and a curing agent into the welding sand box; after full filling, molding, curing and closing the box; molten iron smelting is conducted, specifically, all the components are molten and then continue to be heated for smelting, tapping is conducted after molten iron is killed, melted down and cooled, and the molten iron comprises, by mass, 3.4%-3.8% of C, 2.5%-3.2% of Si, 0.2%-0.4% of Mn, 0.06%-0.11% of S, 0.2%-0.5% of Cu and the balance iron and inevitable impurities; a spheroidizing and pouring step, specifically, molten iron is poured into a spheroidizing ladle, a spheroidizing reaction is performed in a wire feeding spheroidizing mode, after the spheroidizing reaction is completed, the molten iron is poured into a pouring ladle filled with a covering agent and a nucleating agent, pouring is performed, and stream inoculation is performed in the pouring process; and a post-treatment step: cooling and unpacking after pouring is completed, removing a casting head, polishing, and carrying out stress relief annealing.

The invention provides a self-heating tempering and valuable metal partition recycling method for copper smelting slag. The method comprises the steps that S1, a slag tempering agent is prepared from industrial sulfate waste and a low-cost carbonaceous reducing agent; s2, in the copper smelting matte smelting deslagging process, a tempering agent is added into molten slag, and phase adjustment reaction is completed through latent heat of the molten slag; s3, after the slag is slowly cooled, classifying the upper part and the lower part of materials in the slag ladle, and performing conventional crushing, ore grinding and flotation on the upper part to recover valuable metals; and S4, the lower part of sulfonium-rich slag enters a direct return smelting system or is crushed and levigated, and then copper concentrate is recycled through magnetic separation-reverse flotation. According to the copper smelting slag self-heating tempering and valuable metal partition recycling method, synergistic low-carbon treatment is conducted on copper smelting slag and sulfate waste residues according to the concept of treating waste with waste, the method has the advantages of being high in metal recycling rate, low in cost, environmentally friendly, simple in process and material and the like, good economic benefits and environmental benefits are achieved, and the industrial popularization difficulty is small.

The invention discloses a pouring machine flow control system based on multi-parameter feedback and PID dynamic adjustment, and relates to the technical field of automatic control of mold pouring, the system comprises a tilting parameter module, a liquid level dynamic modeling module, a flow adaptive control module and an execution mechanism module; the tilting parameter module collects the angular velocity and angle data of a casting ladle in real time, the liquid level dynamic modeling module calculates the liquid level height according to the angular velocity, the angle data and the geometrical shape of the casting ladle, and the flow self-adaptive control module dynamically calculates the current flow value. And the preset flow target and the real-time flow difference value are input into a PID controller to generate a tilting adjustment signal to drive an execution mechanism module to adjust the flow of the casting machine. The liquid level height and the flow are calculated through mechanical motion parameters, the problem that the sensor is in direct contact with liquid in the high-temperature and high-pressure environment and fails is solved, and stable operation in the severe environment is guaranteed; and adaptive PID control and a multi-parameter fusion model are used for cooperative work, so that the steady-state error is reduced, and the response speed is increased.

The invention provides a refining method for increasing nitrogen in the vacuum process of a VD vacuum furnace, and relates to the technical field of ferrous metallurgy, the refining method comprises the following steps: S1, refining molten steel in an LF steel ladle by adopting nitrogen as bottom blowing gas; and S2, the molten steel obtained after LF ladle refining is placed in a VD vacuum furnace, nitrogen serves as bottom blowing gas, the nitrogen flow and the vacuum degree are adjusted in a multi-stage mode, and the nitrogen increasing operation is completed. A multi-stage adjustment mode is adopted, and the nitrogen content in the molten steel is controlled by controlling the nitrogen flow, the vacuum degree and the retention time.

The invention provides a sand mold casting automatic pouring device which comprises a steel ladle and a conveying roller assembly, the output end of the conveying roller assembly is connected with one end of a movable frame, the steel ladle is in sliding connection with the inner side wall of the movable frame in the length direction of the movable frame, and a locking mechanism is arranged on the movable frame; under the action of the locking mechanism, the steel ladle stops moving and is locked through the locking mechanism, the steel ladle and the locking mechanism are driven by the driving assembly to slide towards the other end of the movable frame, after the steel ladle slides in place, the overturning air cylinder pushes upwards to drive the movable frame to overturn, and the steel ladle inclines downwards synchronously along with the movable frame. The pouring of molten metal liquid in the steel ladle is realized; the whole process is high in automation degree, direct pouring operation through manual operation is avoided, the whole pouring process is more stable, and the pouring quality can be improved.

The invention relates to the technical field of gas supply, and discloses a steel ladle bottom blowing slow-release gas supply structure and method. The control module is arranged on the steel ladle main body and is used for being responsible for automatic control including sensor data monitoring and valve opening adjusting; the sensor module is arranged on the steel ladle body and used for monitoring temperature, pressure and gas flow parameters in real time and feeding data back to the control module; the gas supply module is used for conveying through high-pressure air or other inert gases and providing a stable gas source for the bottom blowing device of the steel ladle main body; and the slow release device is arranged at the bottom of the steel ladle main body and is used for slowly releasing the supplied gas so as to ensure the uniform distribution of the supplied gas. According to the steel ladle bottom blowing slow-release gas supply structure and method, the efficiency and safety in the smelting process are improved, the product quality is improved, resource saving and intelligent management are achieved, and important support is provided for development of the modern steel and iron manufacturing industry.

The invention relates to the technical field of steelmaking, in particular to a steelmaking process based on a Q420 slab, which comprises the following steps: molten iron, scrap steel and pig iron are put into a converter for melting to obtain molten steel, and the molten steel is smelted in the converter and then transferred into a ladle refining furnace for refining; acquiring a fluctuation period to determine whether the removal efficiency of the inclusions in the molten steel is qualified or not; determining the nodulation condition of the slag layer based on the judgment result that the removal efficiency of the inclusions is unqualified so as to determine that the viscosity of the whole slag layer is unqualified or the viscosity of the local slag layer is unqualified; the addition amount of fluorite is determined based on the judgment result that the viscosity of the overall slag layer is unqualified, or the pulse frequency of argon or the refining duration of molten steel is adjusted based on the judgment result that the viscosity of the local slag layer is unqualified; and the refined molten steel is subjected to vacuum degassing treatment and then subjected to continuous casting to obtain a slab, and after the slab is subjected to flaw detection, defect characterization parameters are determined so as to adjust the attenuation rate threshold value. The purification degree of the molten steel is improved.

The utility model relates to an automatic slag ladle tipping system, which comprises a foundation, a slag transporting vehicle, a trolley, a tipping device and a control mechanism, the slag transporting vehicle can transport a slag ladle to walk on the foundation, the trolley can move to a ladle placing position and a tipping racking position on the foundation, the trolley can bear the slag ladle, and the tipping device is arranged on the control mechanism. The tipping device comprises a fixing base, a tipping supporting frame, a shaft supporting base, a locking mechanism and a tipping driving mechanism, the tipping supporting frame is installed on the fixing base in a turnover mode, the shaft supporting base is fixed to the tipping supporting frame, the locking mechanism can lock a trunnion located on the shaft supporting base, and the tipping driving mechanism drives the trunnion to rotate. The tipping driving mechanism can drive the tipping support frame to forwards overturn to a dumping position or backwards overturn to an upper tank position, and when the tipping support frame is located at the upper tank position, a slag tank frame on the trolley located at the tipping upper frame position is placed on the tipping support frame; and the control mechanism is in control connection with the trolley, the locking mechanism and the tipping driving mechanism respectively.

The invention discloses a welding slag ladle for containing copper slag and a design method. The welding slag ladle is suitable for containing, cooling and inverted placing procedures of high-temperature copper slag. The cinder ladle comprises a cylinder body, a ladle bottom, rib plates, trunnions and supporting legs, the cylinder body and the ladle bottom are formed by welding high-temperature-resistant and high-strength rolled plates, the thickness of the cylinder body is 70-100 mm, and the thickness of the ladle bottom is 80-120 mm; setting an inclination angle beta of 11.5-21 degrees relative to the center line of the bus of the cylinder body, and controlling the roughness of the inner wall to be less than or equal to 12.5 microns so as to reduce the separation resistance after the copper slag is cooled; thickness combination, stress distribution, deformation and rib plate arrangement are optimized through structural mechanical simulation, and it is ensured that the structural strength meets the requirements under high temperature and thermal cycle loads; full penetration weld joints are adopted, nondestructive testing is carried out, and the welding reliability is guaranteed; compared with a traditional casting cinder ladle, the mass of the cinder ladle is reduced by 10%-15%, the deslagging efficiency is improved, the service life is prolonged to more than two times of the original service life, and the cinder ladle has the advantages of being light in structure, high in bearing capacity, high in deformation resistance and good in maintainability.

The invention discloses a steel ladle tipping transport vehicle and a hot repair method, and belongs to the technical field of continuous casting of ferrous metallurgy. The steel ladle tipping transport vehicle comprises a vehicle body, a tipping saddle and a rotating arm oil cylinder, the front part of the tipping saddle is hinged to the vehicle body, so that the tipping saddle is convenient to overturn; the output end of the rotating arm oil cylinder is hinged to the middle of the tipping saddle to provide tipping force. The tipping saddle is provided with a clamping groove with an upward notch, and the notch is matched with steel ladle seats on the two sides of the steel ladle in shape, so that the tipping saddle and the steel ladle seats are clamped conveniently. In the specific use process, the clamping groove is connected with the steel ladle base in a clamped mode, the tipping saddle stably bears the steel ladle and drives the steel ladle to synchronously transport and roll over, the tumbler oil cylinder enables the steel ladle to roll over, the vehicle body bears the steel ladle to move between the hot repair station and the molten steel receiving span, transportation and hot repair operation of the steel ladle on the vehicle body are achieved, safety and reliability are achieved, use of a crown block is reduced, and working efficiency is improved. The technical problems that the molten steel receiving span temperature is high, the working environment is poor, the hoisting travel is long and the safety is low during hot repair of an existing steel ladle are solved.

The invention relates to the technical field of hoisting, and particularly discloses a hoisting device for a converter ladle, the hoisting device comprises a lifting hook, a lifting rope for lifting the lifting hook and a lifting frame hinged to the ladle, an unhooking mechanism comprises a push rod rotationally mounted on the lifting hook, an elastic piece I, a transmission assembly and a clutch assembly, the lifting hook is connected with the lifting rope through the elastic piece I, and the lifting hook is connected with the lifting rope through the elastic piece II; after a ladle is placed on a bearing object, along with descending of the lifting rope, the transmission assembly drives the push rod to rotate forwards, after the push rod abuts against the lifting ring, the clutch assembly enables the push rod and the lifting hook to be locked, and when the lifting ring moves towards the opening of the lifting hook, the clutch assembly enables the push rod and the lifting hook to be disconnected gradually. After the push rod abuts against the lifting ring again, the clutch assembly locks the push rod and the lifting hook again, and meanwhile the push rod pushes the lifting ring out of the opening of the lifting hook; the lifting hook has the beneficial effect that the problem that the lifting hook and the lifting frame are not thoroughly separated can be avoided.

The invention relates to the technical field of magnesia-alumina-carbon brick processing, in particular to a processing and forming device of an anti-stripping unfired magnesia-alumina-carbon brick for a steel ladle wall, which comprises a pressing machine table, a hydraulic rod piece is fixedly mounted on the pressing machine table, and a movable bearing table is fixedly mounted on the hydraulic rod piece; the mold bearing platform is mounted on the pressing machine platform and is used for supporting the pressing mold; the oil feeding assembly is fixedly mounted on the mold bearing platform; the movable oil injection assembly is mounted on the oil feeding assembly, and is driven by a movable bearing platform to move so as to carry out oil injection treatment on the mold; when oil injection of a mold needs to be carried out, the movable bearing platform drives the stepped rack to move upwards, the oil injection pipe is driven to move under the action of the stepped rack, a spray head reaches the mold, oil injection treatment is conveniently carried out on the mold, manual operation is not needed, great convenience is achieved, the oil injection pipe moves to one side during pressing, and pressing cannot be hindered.

The utility model discloses a tundish dry material automatic feeding device which comprises a stock bin, a discharging channel is arranged at the bottom of one side of the stock bin, a partition plate, a screening funnel and a feeding hopper are sequentially arranged in the stock bin from top to bottom, the partition plate is fixedly connected with the inner wall of the stock bin, and the screening funnel and the feeding hopper are both movably connected with the inner wall of the stock bin. Bagged dry materials are placed in the stock bin, wall breaking treatment is conducted on the bagged dry materials through the material supplementing mechanism, the dry materials fall down from the strip-shaped holes after packaging bags are scratched, the materials are screened after being filtered through the screening funnel, residual impurities can be discharged from the cleaning opening, and the screened materials are conveyed into the discharging channel through the feeding hopper. The material guiding thin pipe and the spiral auger are used for controlling the downward sliding speed and flow of powder, the protective cover communicated with the output end of the conveying hose is matched to convey the material to the tundish, raised dust can be covered, flying dust is reduced, the material supplementing process is efficient, time and labor are saved, and safety is improved.

The invention relates to the field of slagging-off equipment, and provides a slagging-off robot system of a submerged arc furnace, which comprises a mobile vehicle, a slagging-off mechanism and an electricity taking assembly, the moving trolley is movably arranged among a plurality of stations, and power supply assemblies are arranged on the stations; the slagging-off mechanism is arranged on the moving trolley and is used for carrying out slagging-off operation on a ladle of the submerged arc furnace; the power taking assembly is arranged on the moving vehicle and electrically connected with the slagging-off mechanism, and the power taking assembly is selectively and electrically connected with the power supply assembly so as to provide power for the slagging-off mechanism. By means of the technical scheme, the slagging-off mechanism can move among different stations, better flexibility is achieved, the working efficiency is improved, and potential safety hazards caused when a crane is used for transferring hot metal ladles are avoided.

The invention provides a method for improving the manganese recovery rate of a silicon-manganese alloy, which comprises the following steps: sequentially filling smelting raw materials into a closed electric furnace for smelting to obtain an alloy melt; transferring the alloy melt into a steel ladle, and blowing magnesium powder for desulfurization; the desulfurized alloy melt is subjected to slagging-off, and manganese-silicon alloy molten iron is obtained; the manganese-silicon alloy molten iron is poured into a mold for ingot casting, and a manganese-silicon alloy finished product is obtained after cooling; the smelting raw materials are sequentially filled with a backing material, a mixture and a surface material from bottom to top in the closed electric furnace; the surface material comprises aluminum powder and calcium carbide which are mixed according to a certain proportion, in the method, the surface material comprises the aluminum powder and the calcium carbide which are mixed according to a certain proportion, the effect of a reducing agent can be achieved while the ignition effect is achieved, manganese can be directly reduced in the reaction through addition of the aluminum powder, and therefore the effect of improving the manganese recovery rate is achieved.

The invention belongs to the technical field of research and development of fast neutron reactor jackets and structural materials, and particularly relates to a high-temperature-lead-bismuth-corrosion-resistant high-silicon-content ferrite / martensite steel ladle tube and a preparation method thereof. According to the mass percentage, the composition mainly comprises the following components: 0.16-0.24% of C; 0.4 to 0.8 percent of Mn; cr: 11.6% to 12.4%; 1.2 to 1.8 percent of W; 0.1 to 0.4 percent of Ta; 0.2 to 0.4 percent of V; 1.0%-1.8% of Si and Fe. The preparation method comprises the steps of vacuum induction and vacuum arc remelting. Carrying out homogenization treatment and forging; extruding and annealing; cold rolling and annealing; and performing normalizing and tempering treatment. Through an efficient short-flow process route and reasonable smelting, pipe machining deformation and heat treatment processes, the microscopic structure of the material is remarkably improved, then the mechanical property and high-temperature lead and bismuth corrosion resistance of the finished pipe are improved, and the use requirement of the lead and bismuth cooling fast reactor fuel assembly cladding material under the high-temperature working condition is met.

The invention provides a nodular cast iron material and a preparation method and application thereof. The preparation method of the nodular cast iron material comprises the following steps that S1, a mixture of pig iron, low-manganese waste steel and foundry returns is heated to be completely molten, alloy and auxiliary materials are supplemented and adjusted to target components, and base iron is obtained; s2, a spheroidizing agent is added into the base iron to conduct spheroidizing treatment, ladle-to-ladle inoculation is conducted after spheroidizing treatment, and an efficient inoculant is added during ladle-to-ladle inoculation; s3, pouring is conducted, and during pouring, a long-acting stream inoculant is added for instantaneous inoculation; and S4, carrying out vibration aging treatment to obtain the nodular cast iron material. According to the nodular cast iron material, collaborative upgrading is achieved in the three dimensions of graphite form-matrix strength-thermal stress dissipation, in a bench test, the number of hot cracks is greatly increased, the service life is obviously prolonged, and reliable guarantee is provided for braking safety of heavy vehicles.

The invention relates to the technical field of dissimilar metal connection, in particular to a copper-steel bimetal piece with a complex inner runner and a preparation method thereof.The preparation method comprises the steps that a cooling runner is preprocessed through a copper alloy blank, and a primary copper alloy workpiece is obtained; the primary copper alloy part is cleaned, and a secondary copper alloy part is obtained; the stainless steel blank is subjected to surface treatment and cleaning, and a stainless steel workpiece is obtained; the secondary copper alloy workpiece and the stainless steel workpiece are assembled and then are arranged in a sheath; the sheath is heated and vacuumized and then is sealed and welded; carrying out hot isostatic pressing treatment on the sealed and welded sheath to obtain an intermediate part; and the steel ladle sleeve outside the middle part is removed, and the copper-steel bimetal part is obtained. According to the method, the phenomena of generation of brittle intermetallic compounds on the interface and grain coarsening are avoided, the connection strength is remarkably improved, interface metallurgical bonding and high-precision shape control of a cooling runner are synchronously completed in a single process, and the geometric precision of the copper-steel bimetal part is guaranteed.

The utility model relates to the technical field of steel smelting, in particular to a steel ladle air brick cleaning device which comprises an air supply mechanism, a conveying mechanism, an air blowing mechanism, an adjusting mechanism and a display mechanism, the display mechanism is fixedly connected with the conveying mechanism, the air blowing mechanism is fixedly connected with the conveying mechanism, and the conveying mechanism is fixedly connected with the air supply mechanism. The adjusting mechanism comprises an adjusting seat, an adjusting ring, a vertical rod and an adjusting inner cylinder, the adjusting inner cylinder can change the conveying direction of gas in the conveying mechanism under the rotation of the adjusting ring, so that the conveying conditions of different gases in the same pipeline are realized, the design is simple to operate, and the problems that oxygen and nitrogen need to be separately conveyed and blown by working personnel, and the working efficiency is low are solved. The connecting pipelines are more, and the use is more inconvenient.

The invention relates to the technical field of medium manganese steel, in particular to high-strength and high-toughness medium manganese steel and a preparation method thereof.The preparation method is characterized by comprising the steps that S1, smelting is conducted through an electric furnace according to the chemical component ratio of the medium manganese steel, then refining is conducted through a ladle refining furnace, then vacuum degassing treatment is conducted through a vacuum circulation degassing method, and then continuous casting is conducted to form a plate blank with the thickness being 200-300 mm; s2, the plate blank is heated to 1150-1250 DEG C in a walking beam furnace, heat preservation is conducted for 2-4 hours, and then a controlled rolling technology is adopted to machine the plate blank into a steel plate within the range of 4-20 mm; s3, after rolling is completed, the steel plate is treated through a composite cooling technology of ultra-fast cooling and laminar cooling; s4, the cooled steel plate is heated to 750-850 DEG C, heat preservation is conducted for 10-60 minutes, and a ferrite and austenite double-phase structure is formed; the comprehensive performance is greatly improved, and excellent strength, plasticity, low-temperature toughness and welding adaptability are shown.

The invention provides a method and a system for accurately controlling the heating temperature rise of a ladle refining furnace. The method comprises the following steps of: constructing a historical heat data information base; pre-processing the heating temperature rise value of the historical heat of each condition, and optimizing a first temperature rise heating parameter of the heat; a theoretical second heating temperature rise parameter is obtained through electric power heat balance calculation; the steel ladle infrared thermal imaging detection data of the historical heat and the corresponding molten steel temperature in the steel ladle are subjected to correlation analysis, and a third heating temperature rise parameter of the heat is obtained; inputting the first heating temperature rise parameter, the second heating temperature rise parameter and the third heating temperature rise parameter into a convolutional neural network, and outputting a recommended fourth heating temperature rise parameter; and a fifth heating temperature rising parameter of the current heat is obtained, the fourth heating temperature rising parameter and the fifth heating temperature rising parameter are compared to obtain an actual heating parameter of the current heat, and accurate control over the temperature of the current heat is achieved according to the actual heating parameter. Based on the method, the invention further provides a system for accurately controlling the heating temperature rise of the ladle refining furnace. According to the invention, accurate control of the temperature of the furnace is realized.

The invention relates to the technical field of continuous casting of copper materials, in particular to high-quality copper material pouring equipment which comprises a driving frame and a horizontal continuous casting machine body, an alignment frame is arranged on the top face of the driving frame, and a pouring assembly for pouring molten copper liquid into the horizontal continuous casting machine body is arranged on the alignment frame. A connecting assembly used for moving the alignment frame is arranged between the driving frame and the alignment frame, and two sets of alignment assemblies used for accurately aligning the alignment frame and the horizontal continuous casting machine body are symmetrically arranged on the side face of the alignment frame. Two sets of positioning assemblies matched with the alignment assemblies are symmetrically arranged on the side face of the horizontal continuous casting machine body. By means of the linkage design of the positioning assembly and the alignment assembly, the position of the alignment frame can be automatically adjusted, the tundish and the horizontal continuous casting machine body are accurately aligned to the same horizontal position, it is ensured that a pouring nozzle is aligned to the center of a material opening, and the problem of molten copper splashing or uneven pouring caused by position deviation is solved.