496 results about "Foundry" patented technology

The invention provides a casting industry abnormal sound detection and grading response method based on voiceprint recognition, and belongs to the technical field of casting industry detection. A high-temperature-resistant microphone array is arranged at an easy-to-leak part of cast aluminum equipment, and three-stage filtering noise reduction and amplitude normalization preprocessing are adopted, so that the problem of poor signal quality caused by noise interference in a complex environment is effectively solved; the characteristics of the molten aluminum leakage sound in different frequency bands and different stages can be captured through variable window long-short time Fourier transform and extended Mel frequency cepstrum coefficient in combination with extraction of an energy change rate and a frequency spectrum gravity center; a Transform-CNN hybrid deep learning model based on an attention mechanism is constructed, and feature screening is optimized through principal component analysis and recursive feature elimination, so that the recognition and generalization ability of the model to the abnormal sound in the casting industry is significantly improved; and meanwhile, graded response measures are made based on the detection result, so that the abnormal conditions of molten aluminum leakage with different severity degrees are processed.

Stacked devices and methods of fabrication are provided. Die-to-wafer (D2W) direct-bonding techniques join layers of dies of various physical sizes, form factors, and foundry nodes to a semiconductor wafer, to interposers, or to boards and panels, allowing mixing and matching of variegated dies in the fabrication of 3D stacked devices during wafer level packaging (WLP). Molding material fills in lateral spaces between dies to enable fan-out versions of 3D die stacks with fine pitch leads and capability of vertical through-vias throughout. Molding material is planarized to create direct-bonding surfaces between multiple layers of the variegated dies for high interconnect density and reduction of vertical height. Interposers with variegated dies on one or both sides can be created and bonded to wafers. Logic dies and image sensors from different fabrication nodes and different wafer sizes can be stacked during WLP, or logic dies and high bandwidth memory (HBM) of different geometries can be stacked during WLP.

The invention discloses a reconfigurable casting process module hierarchical control method, which comprises the following steps of: firstly, acquiring a multi-source sensor data stream generated in a casting task execution process, the data comprising key process parameters such as temperature, pressure, flow velocity and the like; based on this data stream, an initial condition feature set for characterizing the dynamic condition is determined. And then, carrying out segmented working condition optimization processing on the feature set by utilizing a hierarchical decoupling regulation model, and obtaining an optimized working condition feature set through system coupling dissociation and random disturbance stripping. And finally, performing feature reconstruction processing on the optimization feature set, and generating an optimization control instruction accurately matched with the current casting process to adjust the pouring speed, the cooling rate or the pressure parameter in real time, thereby realizing closed-loop optimization control of the casting process. According to the method, the control precision and the process stability under complex working conditions are effectively improved.

The invention relates to the technical field of casting automation control, and discloses a sand-box-free vertical parting casting casting automation control system and method. A data acquisition module of the system obtains casting process parameters such as a casting actual temperature value, a casting mold pressure value, a molten metal flow rate value and a parting surface state value; the dynamic modeling module constructs a casting field variable matrix based on the parameters and outputs dynamic casting correction parameters; the stability evaluation module calculates an actual casting resistance value by using the dynamic casting correction parameters, and generates a casting flow deviation index in combination with a preset target casting resistance value and an actual molten metal flow rate; and the closed-loop compensation module executes a double-channel compensation strategy according to the casting flow deviation index, outputs a pressure compensation value and a flow speed compensation value to compensate an actual casting resistance value, and feeds back a compensated result to the dynamic modeling module to realize dynamic adjustment. According to the system, through multi-module cooperation and closed-loop control, precise dynamic control over the casting process is achieved, and the quality stability of castings is improved.

A coke product configured to be used in foundry cupolas to melt iron and produce cast iron products is disclosed herein. In some embodiments, the coke product has a Coke Reactivity Index (CRI) of at least 30% and an ash fusion temperature (A FT) less than 1316° C. Additionally or alternatively, the coke product can comprise a fixed carbon content of at least 80% and / or a volatile matter content of no more than 1.0%.

The application relates to the technical field of foundry molding, in particular to an aluminum alloy casting sand core molding machine; the machine comprises a base and a stand column fixedly connected to the rear position of the upper surface of the base; the upper end of the stand column is rotationally connected to a top base provided with an upper hydraulic cylinder; the lower end of the upper hydraulic cylinder is fixedly connected to a pressing plate; the front position of the upper surface of the base is fixedly connected to a support through a lower hydraulic cylinder; a plurality of electric push rods are embedded in the upper surface of the support; the upper surface of the support is provided with a mold plate provided with a mold sample and a rod groove; the mold plate drives a sand frame to move up and down in a hopper through control, so that a pressing strip can repeatedly beat the coated sand on the upper end of the sand frame, and the hopper assists the coated sand on the upper end of the sand frame to be supplemented, the coated sand in the sand frame is more compact and uniform in filling and pressing, the quality of the formed sand mold is improved, and compared with manual filling and pressing, the machine is more efficient and convenient.

The invention discloses a reinforcement learning-based casting cleaning process parameter adaptive control method, which comprises the following steps of: constructing a reinforcement learning model for updating casting cleaning process parameters; the method comprises the steps that in the process that a casting cleaning system cleans a casting according to a set control period, key process signals in each control period are sequentially collected, and observation vectors are generated; inputting the obtained observation vector into a reinforcement learning model, and processing the observation vector by the reinforcement learning model to obtain a process parameter adjusting quantity, and the casting cleaning process parameters of the current control period are updated according to the process parameter adjusting quantity to obtain updated casting cleaning process parameters, and the updated casting cleaning process parameters are adopted to control a casting cleaning system of the next control period. According to the casting cleaning process parameter self-adaptive control method based on reinforcement learning, continuous and self-adaptive adjustment of the process parameters can be achieved, and the problem that fixed parameter control is insufficient in adaptability under complex working conditions is solved.

A casting molding sand screening device capable of being recycled comprises a machine box and a screen drum rotationally arranged in the machine box, a grinding drum is rotationally installed in the screen drum, a lining ring is fixedly arranged at the position, corresponding to the grinding drum, of the inner side wall of the screen drum, and a grinding face capable of being matched with the lining ring in a mutual grinding mode is arranged on the peripheral side face of the grinding drum. According to the molding sand screening device, the rotatable grinding cylinder is arranged in the screening cylinder, meanwhile, the lining ring matched with the grinding cylinder is arranged on the inner side wall of the screening cylinder, and in the process that molding sand blocks mixed and caked in molding sand are screened in the screening cylinder, small impurity particles can be directly screened out of the screening cylinder; and under the mutual rolling of the rolling cylinder and the lining ring, the caked molding sand blocks can be rolled into molding sand particles with single particle size and capable of achieving the recycling standard, so that the problem of subsequent secondary screening is avoided.

The invention relates to the technical field of casting sand production, and discloses an artificial intelligence-based casting waste sand recycling intelligent manufacturing management system, which comprises a data acquisition module for acquiring production data in a casting waste sand treatment process; the data processing and analyzing module is used for receiving the data transmitted by the data acquisition module and processing and analyzing the data; the intelligent control module is used for adjusting operation parameters of crushing, grinding, sorting and roasting equipment; the production scheduling and management module is used for receiving the control information, making a production plan and performing inventory management; and the quality detection and tracing module is used for establishing a quality tracing system and ensuring the traceability of the data. By constructing a data processing and modeling module based on artificial intelligence, dynamic identification and adjustment optimization of a key process state in a foundry waste sand treatment process are realized, so that the adaptability of the system to complex working conditions is improved.

Stacked devices and methods of fabrication are provided. Die-to-wafer (D2W) direct-bonding techniques join layers of dies of various physical sizes, form factors, and foundry nodes to a semiconductor wafer, to interposers, or to boards and panels, allowing mixing and matching of variegated dies in the fabrication of 3D stacked devices during wafer level packaging (WLP). Molding material fills in lateral spaces between dies to enable fan-out versions of 3D die stacks with fine pitch leads and capability of vertical through-vias throughout. Molding material is planarized to create direct-bonding surfaces between multiple layers of the variegated dies for high interconnect density and reduction of vertical height. Interposers with variegated dies on one or both sides can be created and bonded to wafers. Logic dies and image sensors from different fabrication nodes and different wafer sizes can be stacked during WLP, or logic dies and high bandwidth memory (HBM) of different geometries can be stacked during WLP.

The invention relates to the technical field of casting materials, and particularly discloses a rare earth alloying nucleating agent. According to the rare earth alloying nucleating agent, rare earth elements are added on the basis of a traditional silicon-based nucleating agent, the rare earth elements can react with S, O and N in molten iron to generate rare earth sulfide, oxide and nitride particles, and the particles can serve as nucleation substrates of graphite. The melting point of the particles is higher than the temperature of molten iron, so that the nucleation number of rare earth inoculation is large, the anti-recession time is long, the inoculation effect can be ensured, graphite is finer, and the strength of a casting is improved.

The invention provides a grinding mechanism for casting grinding equipment. The grinding mechanism comprises a base. A rotary carrying table is arranged on one side of the base, and a longitudinal position adjusting mechanism is installed at the bottom of the stand column and installed above the base. The number of the side plates is two, and the two side plates are installed on the front face and the back face of the stand column through the two vertical position adjusting mechanisms correspondingly. A rotary positioning mechanism is mounted in the middle of the side plate; the first movable cross beam and the second movable cross beam are each sleeved with a guide sleeve, and the first movable cross beam and the second movable cross beam are each connected with a transverse position adjusting mechanism. The two guide sleeves are respectively connected with the rotary position adjusting mechanisms on the two side plates; one end of the first movable cross beam and one end of the second movable cross beam are each provided with a rotating mechanism; the polishing assembly is connected with a rotating mechanism on the first movable cross beam; and the laser scanner is connected with the rotating mechanism on the second movable cross beam. Before the inner cavity of the casting is polished, the laser scanner comprehensively scans the inner cavity of the casting, and a polishing movement track is automatically generated.

The invention relates to the technical field of foundry sand treatment devices, in particular to a screening device for butterfly valve casting molding sand, which comprises a buffer tank and a base, the upper end of the base is fixedly connected with a filtering tank, the outer side of the filtering tank is provided with a first motor, and the inner side of the filtering tank is provided with a filtering mechanism for screening the molding sand. A conveying belt is installed at the upper end of the base, a discharging mechanism used for evenly discharging molding sand is installed at the upper end of the conveying belt, aiming at radioactive impurities of the nuclear power butterfly valve to the molding sand, through combination of visual recognition and magnetic separation, the content of metal impurities is reduced, and the casting standard of nuclear first-grade components is met; sintered sand blocks larger than 1.5 mm can be accurately removed, it is avoided that the sintered sand blocks block a follow-up screen or the strength of a sand mold is uneven, the 0.8 mm aperture of the woven mesh is matched with vibration of the arc-edge sleeve to prevent blocking, coarse sand grading of silica sand is achieved, and the problem that in traditional screening, fine powder agglomerates, and air permeability is insufficient is solved.

The application belongs to the field of core shooting machines, in particular to a kind of foundry coated sand core shooting machine, including frame, movable die assembly, fixed die assembly, sand shooting assembly, sand supply assembly, and the fixed die assembly includes upper die;The upper die and frame are in fixed connection;The upper die top is provided with sand inlet, and bottom is provided with forming chamber;The inner wall of the upper die is provided with exhaust air duct;The bottom of the exhaust air duct is provided with a plurality of first exhaust ports, and the first exhaust port is in communication with the forming chamber;Through the cooperation of first exhaust port, exhaust air duct and second exhaust port, the forming cavity of upper die and bottom die can be exhausted, to reduce the loosening of sand particles in the cavity caused by gas, improve the density and smoothness of the surface of the formed sand core, and at the same time, through the setting of the protrusion, the escape speed of the gas in the exhaust air duct can be accelerated, thereby ensuring the exhaust effect of the device.

Moulding material mixture of natural and / or ceramic sands with a phenol-formaldehyde resin-free binder for foundry moulding sands, wherein the binder is either ➢as a one-component binder based on polyurethane and / or polyurea, comprising an aromatic or aliphatic oligomeric and / or polymeric isocyanate or a mixture of several aromatic and / or aliphatic oligomeric and / or polymeric isocyanates with partially delayed reactivity, and as an additive a non-functional diluent, wherein the isocyanates consist entirely or partially of pre-crosslinked reaction products, and wherein the pre-crosslinking is brought about by the reaction with di- or polyfunctional polyols with a stoichiometric deficit of hydrogen-active compounds, resulting in a residual content of free isocyanate groups in the range of 5 to 35%, and wherein the one-component binder is suitable for a multi-phase curing process using water-alcohol mixtures, or ➢ as a two-component binder based on polyurethane and / or polyurea, comprising . a component A with an average hydrogen functionality of 2.0 to 3.9, with an average equivalent weight of 450 to 900 g / eq of the reactants and with functional and / or non-functional additives that control the reactivity, non-functional admixtures that promote processability and ensure stability, wherein the reactants of component A are polyether alcohol mixtures of hydroxyl and / or mercapto groups and / or internal nitrogen-containing individual components, wherein the hydrogen-active compounds of the mixture of component A • two- to eight-functional polyether alcohols obtained by anionic or cationic ring-opening polymerization of cyclic ethers and simultaneous addition of the resulting polyether chains to OH / NH starter molecules and / or • Polythiols resulting from the esterification reaction of 3-mercaptopropionic acid with two or more alcohols or which are hydrogen-active polysulfide polymers with free SH groups, are selected and combined, and • an isocyanate-containing component B is present.

The invention discloses low-gas-evolution and high-heat-resistance precoated sand and a preparation method thereof, and relates to the technical field of casting materials.The preparation method comprises the following steps that cast steel reclaimed sand is dried, so that the water content of the cast steel reclaimed sand is reduced to 0.1% or below; taking 1000 parts by weight of treated cast steel reclaimed sand, adding 5-10 parts by weight of a silane coupling agent, and uniformly mixing; the mixed materials are heated to 75-80 DEG C and then transferred into a sand mixer, 30-40 parts by weight of organic polysilazane resin is added, and sand mixing is conducted; adding 6-8 parts by weight of carbon nanotube powder, and mixing for 30 seconds; sequentially adding 5-7 parts by weight of vinyl silicone oil and 1.8-2.4 parts by weight of calcium stearate, and uniformly mixing to obtain a precoated sand product. According to the present invention, the novel bonding system is adopted to prepare the sand mold through the low temperature film coating process, and the prepared sand mold can generate ceramic transformation during the casting stage so as to provide characteristics of extremely low gas forming amount, extremely high heat resistance, low thermal expansion rate and excellent casting quality, and the production process has characteristics of energy saving and consumption reducing.

The utility model relates to the technical field of end cone and discloses high -strength automobile exhaust system end cone foundry grinding tool, including base, the top fixed connection of base has lower mould base, the top of lower mould base is opened to have the forging groove, the one end of lower mould base is opened to have the slot, the inside fixed connection of slot has the baffle, the one end of baffle is opened to have the adjusting groove, the top of slot inner chamber is opened to have the through -inserted groove. This high -strength automobile exhaust system end cone foundry grinding tool, the staff moves adjusting rod to the inside of slot, makes adjusting rod drive arc -shaped pusher to move, makes arc -shaped pusher extrude arc -shaped stress block, arc -shaped stress block will drive connecting rod and stripping plate to move at this moment, make stripping plate remove from the inside of forging groove, and then complete the stripping of end cone, through the stripping plate that sets up, be convenient for to the stripping of end cone, solved the stripping difficult problem of end cone in the prior art, improved the production efficiency of end cone.

The invention relates to a method for purifying molten iron in a furnace based on a decomposable foaming sand core, and belongs to the technical field of foundry metallurgy. According to the method, an alkaline phenolic resin sand core internally provided with sodium bicarbonate is adopted, and the alkaline phenolic resin sand core extends into the position, 100-200 mm away from the bottom, in the furnace through a special clamp in the molten iron standing stage. Sodium bicarbonate in the sand core is slowly decomposed at high temperature to release a large number of microbubbles, and non-metallic inclusions in molten iron are effectively captured and brought out in the floating process. Deep and uniform purification of the molten iron is achieved through a slow-release foaming mechanism, the purity of the molten iron and the casting quality are remarkably improved, and the method has the advantages of being easy and convenient to operate, low in cost and free of additional equipment and is particularly suitable for the production process of cast iron smelting in an intermediate frequency furnace.

The utility model relates to the technical field of sand boxes, in particular to a large casting assembly line sand box hoisting structure which comprises a plurality of hoisting rods arranged on the peripheral wall of a sand box body and limiting baffles arranged at the ends, away from the sand box body, of the hoisting rods. A limiting baffle is arranged on the movable ring, a limiting column used for limiting the hoisting rope is arranged on the side, close to the limiting baffle, of the movable ring, the length of the limiting column is smaller than that of the hoisting rod, and a positioning hole allowing the limiting column to penetrate is formed in the limiting baffle in a penetrating mode. And the movable ring is provided with the limiting column which can be movably connected with the limiting baffle in an inserted mode, when the lifting rod is sleeved with the lifting rope, the lifting rope can be shielded and limited by inserting the limiting column into the positioning hole in the limiting baffle, the lifting rope is prevented from being separated from the lifting rod, and safety is improved.

The utility model belongs to the technical field of foundry equipment, and disclose a die -lock mechanism of die casting mould, including fixed mould, the top fixed connection of fixed mould has the connecting frame, the top fixed connection of connecting frame has the no. The utility model through setting up servo motor, long rod, long block, moving plate and insert block, operating personnel start servo motor, will make the rotation shaft and long rod rotate, so that two moving rods make two moving plates drive two insert blocks move towards each other, further make two insert blocks can pass through two movable blocks and insert to the inside of fixed mould, so that two movable blocks and dynamic mould whole will be locked, further avoided dynamic mould in the subsequent die -casting operation and the slight shaking of influence product's final quality.

The application discloses a lifting type transportation equipment for casting sand boxes, and relates to the technical field of sand box transportation.The lifting type transportation equipment comprises a base, a platform arranged above the base, an adjusting mechanism arranged above the platform, a square groove, a conveying belt support, a sliding rod and two servo motors, the square groove is arranged on the upper surface of the platform, four electric push rods are fixedly connected to the inner wall of the square groove, the conveying belt support is fixedly connected to the telescopic end of each electric push rod, and the output rotating shaft of each servo motor is fixedly connected with a rotating rod.The lifting type transportation equipment can be mutually matched with the adjusting mechanism and the platform, the sealing cover and the four mounting frames can comprehensively protect the sand box when the sand box is transported, the problem of sand leakage caused by external factors when the sand box is transported is effectively solved, and the stability of the device during transportation is improved.

The utility model relates to the field of foundry equipment, concretely relates to a castings quenching device, including rotating basket subassembly, quenching liquid cooling subassembly, lifting assembly, support and temperature sensor. Rotating basket subassembly be equipped with the porous basket of a plurality of wing plates and the porous basket can be suspended and rotate, and the quenching liquid cooling subassembly is equipped with the barrel body with serpentine heat exchange pipe and the serpentine heat exchange pipe is communicated with cooling water source, and the barrel body is equipped with the liquid discharge pipe and is communicated with the liquid storage tank, and the top is equipped with the annular pipe of the liquid outlet short pipe with the liquid supply of liquid storage tank, and the barrel body is placed above lifting assembly and is driven by lifting assembly and can reciprocatingly ascend and descend, and the temperature sensor is connected on the cooling barrel subassembly, and the liquid temperature of quenching liquid in the barrel body can be dynamically detected. The castings quenching device can make the liquid temperature of quenching liquid homogenization and rapid cooling and can effectively control the liquid temperature, and can improve the quenching quality of castings.

The invention relates to the technical field of smoke collection and dust removal, in particular to a smoke collection and dust removal device for a casting workshop, the smoke collection and dust removal device for the casting workshop comprises a suction unit, a conversion unit and an exhaust unit, and the conversion unit comprises a shell and a filtering structure arranged in the shell; the suction unit and the exhaust unit are respectively communicated with two sides of the shell; the filtering structure comprises a first bearing plate, a second bearing plate and an intercepting assembly, and the first bearing plate and the second bearing plate are detachably connected with the side wall of the shell; the multiple intercepting assemblies are arranged, each intercepting assembly is vertically placed between the first bearing plate and the second bearing plate, and the two ends of each intercepting assembly are detachably connected with the first bearing plate and the second bearing plate correspondingly. The intercepting assembly is used for intercepting impurities in gas which enters the conversion unit through the suction unit and is exhausted through the exhaust unit, and the effect that a dust removal device is additionally arranged corresponding to each operation station is achieved.

The application discloses casting technical field and relates to a kind of casting raw sand rapid detection device, including rotating cavity mechanism, filter cavity, cleaning blow-drying mechanism, DD motor, rotating cavity mechanism bottom coaxial fixed installation has DD motor, DD motor coaxial fixed installation is at the top of cleaning blow-drying mechanism, cleaning blow-drying mechanism top coaxial fixed has cleaning pipe, cleaning pipe is sequentially sealed sliding coaxially through rotating cavity mechanism, filter cavity, DD motor from below to top, rotating cavity mechanism top is provided with the sealing door plate of symmetrical fixed connection by hinge, filter cavity and sealing door plate constitute back sand mechanism, and the even distribution on filter cavity inner wall is simultaneously when the mould sand in filter cavity is under the action of centrifugal force, and when mould sand moves to top, again falls into filter cavity under the action of back mechanism, and the mud sand on the surface of mould sand can be cleaned more cleanly by such multiple dispersing and cleaning, so that detection result is more accurate.

The application discloses a kind of based on multi-sensor fusion's foundry cleaning robot anti-collision control method, including the non-contact acquisition module and contact acquisition module based on multi-sensor construction data;The data obtained by non-contact acquisition module is fused and handled, and robust fusion distance is obtained;Non-contact operation mechanism for the anti-collision operation of foundry cleaning robot is constructed, and the speed of actuator at the end of foundry cleaning robot is dynamically adjusted based on robust fusion distance;And the foundry cleaning robot partition includes safety zone, warning zone and dangerous zone;Contact operation mechanism for adjusting the contact force of foundry cleaning robot is constructed, and based on non-contact operation mechanism, according to the data obtained by contact acquisition module, the dynamic adjustment of the contact force of foundry cleaning robot in casting polishing stage is realized.The application realizes comprehensive perception and analysis of multidimensional information by the way of multi-sensor fusion, so that excellent anti-collision effect can be achieved in cutting and polishing scene.

The invention relates to the technical field of casting islands, in particular to molding sand surface processing equipment based on an electric automatic intelligent casting island, and solves the problems that when a casting island is used for sand mold casting, when a binding agent or a release agent is sprayed and attached to a sand mold, redundant binding agent or release agent can flow along the edge of the sand mold, and the casting island is damaged. Therefore, the problem that the strength of a sand mold or the demolding of a workpiece is affected due to non-uniform distribution of a binder or a demolding agent is solved. The molding sand surface machining treatment equipment based on the electric automatic intelligent casting island comprises a fixing base, a smooth transfer table is embedded in the surface of the fixing base, the surface of the smooth transfer table is smooth and free of burrs, roller type conveying tables are fixed to the two ends of the fixing base, and the roller type conveying tables are used for conveying sand molds and spraying the bottoms of the sand molds. The side baffles and the moving direction baffles are used for shielding the side faces of the sand mold, a curing agent or a release agent is prevented from flowing along the edge of the sand mold during spraying, and it is guaranteed that the thickness of the curing agent and the release agent on the edge of the sand mold is uniform.

The utility model relates to foundry sand core technical field, concretely is a kind of foundry sand core raw material mixing mechanism, including mixing bucket, the side four corners of mixing bucket are fixedly connected with flow guide side cover, the front of mixing bucket is provided with adjusting assembly, the upper and lower ends of mixing bucket are provided with stirring assembly, adjusting assembly includes lifting side cover, the front of mixing bucket is fixedly connected with lifting side cover, lifting side cover is movably connected with lifting push tray in its inside.The utility model can make the equipment to carry out foundry sand core raw material more efficient up and down flow mixing operation by the mixing bucket, flow guide side cover, lifting side cover, lifting push tray, adjusting motor, reciprocating screw rod, sealing sleeve disc, limit slide block, positioning plate, limit side cover, support seat and flow guide net groove, in actual use process, staff first fills in the inside of mixing bucket with the foundry sand core raw material that needs to be mixed, then adjusting motor in lifting side cover top can be started.

Stacked devices and methods of fabrication are provided. Die-to-wafer (D2W) direct-bonding techniques join layers of dies of various physical sizes, form factors, and foundry nodes to a semiconductor wafer, to interposers, or to boards and panels, allowing mixing and matching of variegated dies in the fabrication of 3D stacked devices during wafer level packaging (WLP). Molding material fills in lateral spaces between dies to enable fan-out versions of 3D die stacks with fine pitch leads and capability of vertical through-vias throughout. Molding material is planarized to create direct-bonding surfaces between multiple layers of the variegated dies for high interconnect density and reduction of vertical height. Interposers with variegated dies on one or both sides can be created and bonded to wafers. Logic dies and image sensors from different fabrication nodes and different wafer sizes can be stacked during WLP, or logic dies and high bandwidth memory (HBM) of different geometries can be stacked during WLP.

The invention relates to a casting positioning device, an automatic casting grinding workstation and a feeding grinding method.The casting positioning device comprises a supporting frame, a positioning seat, a pressing disc and a control piece, the positioning seat is arranged on the supporting frame, and a plurality of protrusions used for embedding castings are arranged on the positioning seat; the pressing disc is arranged on the supporting frame in a sliding mode and located above the positioning base, and the control piece is arranged on the supporting frame and used for driving the pressing disc to slide towards the positioning base. The casting positioning device has the beneficial effects that the casting is rapidly pressed on the positioning seat, and the casting is limited through cooperation of the multiple protrusions, so that the casting positioning convenience and accuracy are effectively improved.

The embodiment of the invention discloses a casting cleaning production line intelligent scheduling control method based on multi-agent reinforcement learning, and the method comprises the steps: enabling each processing station and a carrying execution unit to make a decision according to an environment state through introducing a multi-agent reinforcement learning frame based on an established state space for casting cleaning production line scheduling, and achieving the intelligent scheduling control of a casting cleaning production line. Through global value function optimization, beat coordination and resource dynamic allocation between stations are realized, workpiece waiting time and equipment idle time are reduced, fixed beat or manual intervention is eliminated, and the overall utilization rate of a production line is improved. Based on the setting of the reward function, the system can automatically optimize the task allocation logic according to the actual operation state, manual adjustment of beat parameters is not needed, the debugging and maintenance workload of the system is remarkably reduced, and manual dependence and debugging cost are reduced.