1402 results about "Ladle" patented technology

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 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 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 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 present application relates to the technical field of metallurgy, and particularly relates to a production method of a large-wall-thickness pipeline steel with improved carbon dioxide corrosion resistance and strength and toughness, and specific measures include: (1) controlling the bottom blowing mode and end point requirement in the converter process; (2) controlling the tapping time and replacing the tapping hole opportunity in the tapping process; (3) feeding the CAS aluminum wire and controlling the CAS argon blowing time; (4) controlling the top slag addition amount, heating time and outgoing mode in the LF refining process; (5) controlling the wire feeding parameters, soft blowing time and outgoing requirement of RH in the RH refining process; (6) controlling the precision requirement, casting speed fluctuation and crystallizer liquid level fluctuation of the continuous casting equipment in the continuous casting process to obtain the casting blank. Through controlling the parameters of each process in the smelting and rolling process, the present application realizes the whole-process steel cleanliness control and ladle grain refinement, and further improves the strength, low-temperature toughness, HIC resistance and carbon dioxide corrosion resistance of the large-wall-thickness pipeline steel.

The invention relates to the technical field of refractory materials, in particular to an antioxidant and application thereof in steel ladle slag line bricks, and the antioxidant comprises a Si / SiC multiphase material, modified nano Al2O3 and CaF2; the ladle slag line brick comprises an antioxidant, fused magnesite, crystalline flake graphite and phenolic resin. Si-SiC compound waste is subjected to magnetic separation and acid pickling, then a SiO2 passivation layer is formed through pre-oxidation, moisture and air in the storage period are isolated, and a titanate coupling agent is introduced to improve the wettability and compatibility with phenolic resin. P2O5 released by phosphate on the surface of the modified nano Al2O3 at a high temperature reacts with alkali (earth) metal migrated to a SiO2 oxide layer to prevent the alkali (earth) metal from forming a low-melting-point eutectic substance, CaF2 reacts with SiO2 along with temperature rise, a passivation layer is broken, internal Si and SiC are directly exposed, and boron oxide of the modified nano Al2O3 remarkably reduces activation energy and a temperature threshold value of the reaction of CaF2 and SiO2.

The invention discloses an automatic transfer robot for a ladle. The automatic transfer robot comprises a robot body, a gate-type mechanical arm system, a ladle clamping and overturning assembly, an intelligent sensing system and an electrical control system. A servo-driven X-Y plane moving device is arranged at the bottom of the robot body, so that two-dimensional free movement is realized; the door type mechanical arm system comprises symmetrical mechanical arms, a connecting beam and a lifting and telescopic driving assembly and adapts to different positions. The clamping turnover assembly adopts a three-point positioning clamping and servo turnover device and integrates a manual switching system and a weighing system, so that accurate dumping is realized; the intelligent sensing system detects the positions of an iron outlet and a material receiving opening through laser vision; and the electrical control system cooperatively controls each component to realize automatic butt joint. The robot further comprises an automatic ladle cover opening and closing mechanism and a safety protection system, and safety is improved. Through automatic and intelligent design, the molten iron transfer safety and stability are improved, and the system is suitable for casting workshops and particularly suitable for transformation of old workshops.

The invention relates to a steelmaking multi-process dust removal coordinated control system in a big data environment, and the system comprises a data collection module which is used for collecting the dust removal data of a converter smelting process, a converter tapping process, a steel ladle transportation sedation process, a steel ladle refining process and a molten steel casting process in real time; the big data platform is used for constructing a CDH multi-server cluster, processing second-level real-time process data by adopting Flink, performing real-time data processing and operational analysis, and storing dust removal related data through HBase; the dust removal valve state monitoring module is used for monitoring the state of each dust removal valve; the automatic reminding and adjusting module is used for automatically recognizing abnormal or non-optimal configuration of the valve state based on big data analysis and optimizing the dust removal process by reminding or automatically adjusting the valve state; the energy-saving analysis model is used for calculating energy consumption under different configurations; and the intelligent control system integrates an intelligent control algorithm, automatically adjusts the state of the valve according to the result of the energy-saving analysis model, and realizes intelligent control of the dust removal process.

The invention discloses a method for improving castability of aluminum-containing steel in a continuous casting process, which comprises the following steps of: S1, controlling components of molten steel, and accurately controlling the content of acid-soluble aluminum in molten steel of a continuous casting ladle to be 0.020-0.060% according to mass percent; s2, calcium treatment is conducted on the molten steel, and the calcium-aluminum ratio is controlled to range from 0.10 to 0.15; s3, continuous casting process control is conducted, specifically, the superheat degree of tundish molten steel is stably controlled to range from 15 DEG C to 30 DEG C, meanwhile, constant pulling speed operation is adopted, and the pulling speed fluctuation range is controlled within + / -0.1 m / min; and S4, the content of SiO in the casting powder is reduced to be smaller than or equal to 20%, and meanwhile, the alkalinity R of the casting powder is 1.5-2.0. The continuous casting process is ensured to be smooth, nozzle nodulation and casting blank surface defects are effectively prevented, and the production efficiency and the product quality are remarkably improved.

The invention relates to an automatic guided vehicle for molten metal transfer and a working method, and belongs to the technical field of automatic transportation equipment. The vehicle comprises a mobile vehicle body, and further comprises a bag cover opening and closing device, a butt joint bearing part, a storage battery mounting assembly, a dust removal system, a navigation obstacle avoidance system and a control system which are arranged on the mobile vehicle body, and the bag cover opening and closing device is used for automatically opening or closing a bag cover; the butt joint bearing part is used for bearing an external container; the storage battery mounting assembly is used for locking a storage battery module on the mobile vehicle body in a releasable manner; the dust removal system is arranged close to the butt joint bearing part and is used for collecting smoke dust generated by the molten metal ladle; the navigation obstacle avoidance system is used for path navigation and obstacle detection of the automated guided vehicle; and the control system controls the mobile vehicle body to stop when the navigation obstacle avoidance system detects an obstacle. The automatic guided vehicle is flexible in operation, high in automation degree, safe and reliable.

The invention discloses a steel ladle slag line magnesia carbon brick masonry positioning device, and particularly relates to the technical field of steel ladle slag line masonry, the steel ladle slag line magnesia carbon brick masonry positioning device comprises a supporting ring located above a steel ladle, a positioning masonry assembly is arranged at the bottom of the supporting ring, and the positioning masonry assembly comprises a first gear ring arranged at the bottom of the supporting ring; and the bottom of the first gear ring is fixedly connected with a reinforcing ring. A first motor drives a gear ring to transmit and drives a reinforcing ring to rotate, all hinge blocks drive a masonry pressing plate to deflect synchronously in the same direction by means of sliding fit of an inclined guide groove and a sliding column, the masonry pressing plate forms circumferential synchronous pressurization on a brick ring through an abutting arc plate, it is ensured that the brick ring bears uniform pressure in the whole circumferential direction, and the construction efficiency is improved. The problem that local pressure is not uniform in manual masonry is solved, a core foundation is laid for forming a stable self-locking structure for the brick ring, meanwhile, mechanization of pressurization operation is achieved, manual pressurization is replaced, and the labor intensity of foundation pressurization is greatly reduced.

The utility model discloses a full-automatic molten metal transferring and pouring system which comprises a track arranged between an electric furnace and a pouring chamber, the track comprises a first track arranged in front of the electric furnace, a second track arranged in front of the pouring chamber and a third track communicated with the first track and the second track, a transferring dumping car is arranged on the first track, and a transferring dumping car is arranged on the second track. A pouring truck is arranged on the second track, a transfer truck is arranged on the third track, molten metal in the electric furnace is transferred into a steel ladle of the transfer dumping truck, and the steel ladle is transferred between the transfer dumping truck and the pouring truck through the transfer truck. According to the system, full-automatic industrial processes such as molten metal receiving, transferring, pouring and liquid returning are achieved, personnel participation is reduced, and the safety of the whole technological process is improved.

The invention provides a low-sulfur manganese-silicon alloy and a production method thereof.The method comprises the steps that silica, coke and manganese ore are crushed and then mixed with lime, and smelting raw materials are obtained; a closed electric furnace is filled with smelting raw materials for smelting, and alloy melt is obtained; the alloy melt is transferred into a ladle, a desulfurizing agent is added for the desulfurization process, 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 method capable of effectively reducing the sulfur content in the manganese-silicon alloy is provided through the steps of raw material crushing and mixing, in-furnace power transmission refining, out-of-furnace desulfurization, casting molding and the like, the low-sulfur manganese-silicon alloy is produced, and therefore control over the sulfur element content in a steelmaking product is facilitated.

The invention discloses a bimetallic composite material preparation method and system based on metal droplet size regulation and control, and belongs to the technical field of centrifugal casting. According to the method, aiming at a bimetal system with a liquid-liquid mixing and dissolving gap, an alloy melt is smelted according to a preset proportion, and then precise control over the size of second metal phase liquid drops is achieved in a casting ladle by regulating and controlling the standing time in combination with a high-temperature and high-speed camera shooting system. Then relevant casting parameters are input into an autonomously derived liquid drop movement speed and trajectory prediction model, the liquid drop position is predicted, and finally the centrifugal rotating speed or the heating power is adjusted through feedback control according to the deviation between a prediction result and a preset trajectory, so that directional preparation of different structures of the bimetal composite material is achieved. The corresponding system comprises a monitoring module, a calculation module and an execution module which cooperatively complete parameter monitoring, calculation analysis and precise regulation and control in the material preparation process. The casting inclusion defect can be reduced, the product quality instability is reduced, and directional preparation of different structures of the bimetal composite material is achieved.

The invention relates to the technical field of ferrous metallurgy casting, in particular to a drainage sand removing and recycling method and device. Comprising a mechanical arm, a lifting rotation controller, a controller arm, a sand suction cylinder, a sand conveying pipeline, a sand collecting tank and an injection pump. The lifting and rotating controller is fixedly mounted on the mechanical arm; the controller arm is connected with the lifting and rotating controller, and the lifting and rotating of the controller arm are controlled by the lifting and rotating controller; the sand suction cylinder is connected with the controller arm, the sand suction cylinder is of a U-shaped structure, and one end of the sand suction cylinder is a horn mouth used for sucking drainage sand; one end of the sand conveying pipeline is positioned above the tundish cover sprue gate, and the end part of the sand conveying pipeline is bent downwards to be connected with the other end of the sand suction cylinder; the other end of the sand conveying pipeline is connected with the sand collecting tank; the sand collecting tank is connected with an injection pump pipeline, and the injection pump provides suction power. The ladle filler sand, harmful gas in gaps of the ladle filler sand and a long nozzle and a small part of molten steel in contact with the ladle filler sand in a steel ladle can be discharged out of tundish molten steel and recycled.

The invention belongs to the technical field of metallurgy, and discloses a long nozzle fiber gasket and a continuous casting protective pouring method applying the same. The long nozzle fiber gasket comprises a gasket body and a protruding part integrally formed on the upper edge of the gasket body, and the protruding part is of a long-strip-shaped arc-shaped structure. The arc-shaped face of the protruding part is constructed to be attached to the outer contour of the lower edge of the steel ladle collector nozzle so that the guiding and supporting effects can be achieved. The color structure of the protruding part is different from the color of the steel ladle collector nozzle, so that visual guidance is formed, the outer contour of the lower edge of the steel ladle collector nozzle is guided to slide in and be centered along the arc-shaped face of the protruding part during installation, and finally the upper edge of the gasket body and the lower edge of the steel ladle collector nozzle are accurately centered and sealed. According to the long nozzle fiber gasket and the continuous casting protective pouring method applying the same, the precise mounting level of the long nozzle can be improved, the problems that a traditional method depends on experience and is low in efficiency are solved, and the protective pouring effect and the production efficiency are remarkably improved.

The invention relates to the technical field of ferrous metal casting, in particular to a gray cast iron preparation optimization method based on silicon-carbon coordinated regulation, which comprises the following steps: calculating a wall thickness sensitivity coefficient of a casting based on a target size of the casting so as to determine an actual silicon-carbon ratio of the casting; the method comprises the following steps: adding a synthetic cast iron raw material into an electric furnace for melting, adjusting the components to the actual silicon-carbon ratio to obtain molten iron, raising the temperature of the molten iron to 1500-1550 DEG C, standing for 3-5 minutes, determining inoculation parameter adjustment data according to the maximum temperature deviation and the actual silicon-carbon ratio in the standing process, pouring the molten iron into a preheated molten iron treatment ladle, and carrying out heat preservation for 3-5 minutes. Adding a silicon carbide inoculant before molten iron is discharged from the furnace; the silicon-barium inoculant is added for the first time after the molten iron is discharged into a molten iron treatment ladle; and the molten iron is poured into a pouring ladle for pouring forming, the silicon-barium nucleating agent is added for the second time along with flow when the molten iron is poured into a sand mold, and the gray cast iron is obtained after forming. The mechanical property and hardness uniformity of the gray cast iron are improved.

The invention provides high-phosphorus wear-resistant gray cast iron and a production method thereof, and belongs to the technical field of high-phosphorus wear-resistant gray cast irons.The production method comprises the following steps that raw materials are inspected; smelting is conducted, specifically, waste steel, gray iron foundry returns, pig iron, a carburant and ferrophosphorus are sequentially put into an electric furnace to be melted; nickel, chromium and copper are sequentially added into the electric furnace, and the molten iron is quenched and tempered, so that the final components of the molten iron meet the requirements; molding: preparing a casting mold; a casting ladle is preheated, meanwhile, an inoculant is placed at the bottom of the casting ladle, then molten iron is poured into the casting ladle, and the inoculant is added along with flow in the process that the casting ladle conducts casting into the mold; box opening: the box is opened after the temperature is reduced, and the formed high-phosphorus wear-resistant gray cast iron is obtained; and performing heat treatment: performing high-temperature annealing on the high-phosphorus wear-resistant gray cast iron, and inspecting the casting to obtain a final finished product. According to the technical scheme, the purpose of improving the abrasion resistance and the mechanical performance of the gray cast iron is achieved.

The application discloses a ladle turnover optimization method and system based on steelmaking logistics simulation and a storage medium, and belongs to the technical field of iron and steel metallurgy. Steelmaking production plan data and process parameter data are acquired, and a steelmaking workshop logistics simulation model including main processes, auxiliary processes and transportation processes is established. The turnover process of the ladle between processes is tracked and recorded, the ladle number, entering time, leaving time, residence time and state information are acquired, and a ladle turnover Gantt chart is generated. Based on the ladle turnover Gantt chart, the residence time, waiting time and turnover frequency of the ladle in each process are statistically analyzed, abnormal turnover data and abnormal turnover links are identified, the online configuration quantity of the ladle and the turnover organization scheme are adjusted according to the analysis result, and the optimized ladle configuration scheme is determined through simulation verification. The ladle turnover process is visualized, analyzed and optimized, the utilization rate and turnover efficiency of the ladle are improved, the waiting time of the ladle is reduced, and the collaborative efficiency of the steelmaking production organization is improved.

The utility model discloses a melt steel ladle transport vehicle positioning device which comprises a device base, a driving wheel is arranged on the outer side of the bottom end of the device base, a placing table is fixedly arranged on the top of the device base, a positioning table is arranged at the top end of the placing table, and a positioning block is arranged on the outer side of the positioning table. An auxiliary supporting plate is fixedly connected to the top end of the positioning block, a steel ladle is arranged at the top end of the positioning table, a driving assembly is arranged at the bottom of the positioning table, and a driving motor is arranged at the bottom of the driving assembly. The synchronous plate drives the movable blocks to move through the connecting rods and the rotating shafts, so that the movable blocks move in the sliding grooves, when the synchronous plate drives the multiple sets of connecting rods, the positioning blocks corresponding to the tops of the movable blocks are synchronously driven to move, the distance between the positioning blocks is changed through synchronous movement of the positioning blocks, and steel ladles of different sizes are clamped, fixed or loosened.

The invention relates to a device and method for detecting the liquid level height of melt in a copper pyrometallurgy slag ladle, and belongs to the technical field of metallurgy, the device comprises a plurality of infrared cameras in one-to-one correspondence with tank bodies, and further comprises an infrared control box and an upper computer, and the upper computer is externally connected with a dust removal system; the infrared cameras are arranged above the tank bodies and used for collecting infrared images of the tank bodies, all the infrared cameras are electrically connected with the infrared control box, the infrared control box is electrically connected with the upper computer, and the upper computer is electrically connected with a plurality of sound-light alarm devices which are in one-to-one correspondence with the tank bodies and used for alarming the liquid level heights in the tank bodies. The front end of the tank body is provided with an anti-shielding detection device used for detecting whether a transport vehicle passes by or not, and when the anti-shielding detection device detects that the transport vehicle passes by, the upper computer controls the dust removal system to be started. According to the invention, cinder ladle discharge monitoring can be realized, the safety risk of equipment and personnel is reduced, and the cinder ladle alternation efficiency is improved.

To provide a method for continuously casting a steel with which the natural opening ratio of a long nozzle can be improved by restraining the pressure rise in the long nozzle at the time of changing a ladle.SOLUTION: A molten steel flow rate control device (5) for controlling a flow rate of molten steel poured from a ladle (1) into a tundish (2) is closed, and a tip portion of a long nozzle (9) for pouring the molten steel from the ladle (1) into the tundish (2) is immersed in the molten steel in the tundish (2) with a filler (4) filled in a molten steel outflow hole (3) of the ladle (1).SELECTED DRAWING: Figure 4

The application discloses a method and a production equipment for smelting low-calcium and low-aluminum steel, and the method comprises the following steps: step one, BOF steel smelting operation treatment; step two, LF refining operation treatment; and step three, continuous casting operation treatment, which are completed by using a smelting low-calcium and low-aluminum steel production equipment, wherein the smelting low-calcium and low-aluminum steel production equipment comprises a ladle, a rotary driving assembly, a floating oxygen supply assembly, a decontamination guide mechanism and an impurity treatment mechanism, the ladle comprises a ladle body and a mounting frame mounted on the upper end of the ladle body, the rotary driving assembly is vertically mounted on the top of the mounting frame, and the floating oxygen supply assembly is located below the mounting frame and is used in cooperation with the rotary driving assembly. In the application, the high oxygen content of the molten steel from the converter is used to oxidize calcium, aluminum and titanium in the alloy, and the formed oxides are lighter than the molten steel in density, float to the slag on the surface of the molten steel, and finally enable the calcium, aluminum and titanium content in the steel to be controlled at a low level.

The application discloses a kind of converter desulfurization ladle in tilting flow slag detection method, system, medium and equipment, the method includes: in the process of ladle tilting, using industrial shooting device installed in converter desulfurization station real-time acquisition contains the panorama chart continuous frame stream of entire ladle tilting area;Using target deep learning algorithm processes panorama chart continuous frame stream, identifies the three categories of targets and its position area related data contained in each frame image;Wherein, the three categories of targets are respectively: bag along, the molten steel flow, the steel slag;Analysis three categories of targets and its position area related data in the change in panorama chart continuous frame stream, determine the flow slag tendency that the steel slag presents in the molten steel flow;According to the flow slag tendency that the steel slag presents in the molten steel flow, corresponding decision is made using hierarchical strategy.

The application provides a graphite ladle production powder intelligent weighing and compensation control method, relates to the graphite product production control technical field, and comprises the following steps: obtaining target formula parameters, raw material state data and discharging process data corresponding to each powder raw material in a graphite ladle blank batching weighing process, the graphite ladle production powder intelligent weighing and compensation control method, by obtaining the target formula parameters, raw material state data and discharging process data corresponding to each powder raw material, generating a weighing compensation collaborative control index, forming self-adaptive weighing control parameters and self-adaptive compensation control parameters matched with each powder raw material, realizing the collaborative identification and self-adaptive regulation and control of the discharging behavior, deviation formation mechanism and compensation demand in the graphite ladle blank batching weighing process, and improving the control precision, process stability and control adaptability of the powder weighing process.

The utility model discloses a steel ladle sliding plate with an auxiliary composite reinforcing structure, and particularly relates to the technical field of steel ladle sliding plates, which comprises a bottom frame body, a lower sliding plate brick is embedded in the surface of the bottom frame body, a sliding plate sleeve frame is hinged to one side of the bottom frame body, and an upper sliding plate brick is arranged in the sliding plate sleeve frame. Reinforcing mechanisms are arranged in the lower sliding plate brick and the upper sliding plate brick and comprise a plurality of transverse reinforcing ribs fixedly arranged in the lower sliding plate brick and the upper sliding plate brick respectively, vertical reinforcing ribs are fixedly arranged on one sides of the transverse reinforcing ribs, and the transverse reinforcing ribs and the vertical reinforcing ribs are distributed in a grid shape. A reinforcing layer is fixedly arranged on one side of the lower sliding plate brick and one side of the upper sliding plate brick, and a reinforcing layer is fixedly arranged on the other side of the lower sliding plate brick and the other side of the upper sliding plate brick. The structural strength of the lower sliding plate brick and the upper sliding plate brick is enhanced, thermal stress and external force are resisted, the service life is prolonged, and the reliability and durability of the sliding plate are comprehensively improved.

The invention relates to a preparation method of a nickel-chromium-iron alloy consumable electrode, the consumable electrode and an alloy ingot. The method comprises the steps that an electrolytic nickel plate is subjected to vacuum melting under the condition that the vacuum degree is smaller than or equal to 0.67 Pa, after the electrolytic nickel plate is melted down, the vacuum degree is kept to be smaller than 2 Pa and lasts for 5 min to 10 min, and a nickel melt with the lead removal rate larger than or equal to 60% is obtained; pouring the nickel melt into a pure nickel electrode under a vacuum condition; combining the pure nickel electrode with industrial pure iron to form an iron-nickel composite electrode; with the iron-nickel composite electrode as a consumable electrode, ferrochrome is added into a lined electroslag furnace for smelting, and a high-temperature metal melt is obtained; the high-temperature metal melt is tapped to a steel ladle, and argon is blown to the bottom of the high-temperature metal melt in the steel ladle for 3-5 min; and the high-temperature metal melt obtained after bottom argon blowing is poured into the consumable electrode. According to the method, five types of fusible elements including Pb, Bi, Sn, As and Sb are systematically and gradually reduced to be extremely trace by coupling three steps of vacuum volatilization, deep electroslag separation and secondary ladle refining.

The utility model relates to the technical field of aluminum ladle liners, and discloses an aluminum ladle liner structure, a liner body is arranged in a ladle body, a sealing cover plate is arranged at the top of the ladle body, a pressure relief valve is fixedly connected to the top of the sealing cover plate, and a spiral guide plate with a plurality of air outlet holes is arranged in the liner body, so that the pressure relief valve is fixedly connected to the top of the sealing cover plate. During work, an external air pump injects gas into the cavity of the spiral flow guide plate through the heat-resistant gas injection pipe and the air inlet channel, the gas is sprayed out of the air outlet holes to push molten aluminum to flow, the spiral flow guide plate guides the molten aluminum to do spiral motion, and a spiral flow field is formed; the spiral flow field and a flow field generated by gas injection are mutually overlapped, axial and radial flow of molten aluminum is strengthened, stirring dead angles are effectively reduced, the molten aluminum circulates more sufficiently in the ladle, stirring is more uniform, temperature distribution of the molten aluminum is optimized, surface solidification of the molten aluminum is avoided, and the quality of the molten aluminum is improved.

The invention belongs to the field of metal material modification and roller manufacturing, and particularly relates to a production method of a double-element alloying modified carbide high-chromium cast iron roller for rod and wire rolling. Paving ferrotitanium at the bottom of a ladle, smelting molten iron on the outer layer of the roller by adopting an intermediate frequency furnace, and discharging when the components reach the standard and the temperature of the molten iron reaches 1460 + / -20 DEG C; after the molten iron subjected to titanium alloying treatment is subjected to slagging-off treatment at a tapping station, Ce particles are packaged in a hollow iron sheet pipe, the hollow iron sheet pipe is inserted into the molten iron after the two ends of the hollow iron sheet pipe are closed, and mechanical stirring is conducted for 1-3 minutes; and when the temperature of the molten iron subjected to Ti and Ce double alloying is reduced to 1440-1450 DEG C, the molten iron is poured into a rotating mold at a constant speed for centrifugal pouring. The size and distribution of carbides are modified mainly through double-element alloying, the abrasion resistance of the slitting roller is improved, the protection effect of a matrix on the carbides is enhanced, the toughness of a slitting blade is improved, the tipping occurrence rate is reduced, and therefore the rolling efficiency is improved.

Disclosed is a ladle for removing oil, comprising: a body unit formed as a container with an opened upper portion and having an outlet formed on the bottom surface, the outlet having the shape of a funnel lying upside down; a Pythagorean cup cap inserted into an inlet through an opened portion and separating, by means of a siphoning effect, oil and water contained in a fluid to remove the separated oil; and a handle connected to a portion of the body unit to be gripped by a user.