573 results about "Precision casting" patented technology

The invention relates to the technical field of machine tool casting detection, and discloses an automatic detection system for surface defects of machine tool precision castings. The system comprises a surface information acquisition core module, a first defect identification core module, a second defect identification core module and a defect type fusion core module. The surface information acquisition module is used for synchronously acquiring real-time optical images and process parameter data in production aiming at the surface of the casting part, and constructing a defect diagnosis characteristic spectrum and an auxiliary text according to the real-time optical images and the process parameter data; the first defect recognition module inputs the atlas and the auxiliary text into a pre-training double-flow convolutional neural network to generate a first classification result of defect types; a second defect identification module extracts defect mechanism characteristic values from the atlas and matches the defect mechanism characteristic values with a pre-stored defect mechanism knowledge base to obtain a second classification result; and the defect type fusion module fuses the two types of results to determine a target defect type. The system solves the problems of single detection information and identification deviation in the prior art, improves the detection accuracy and real-time performance, and meets the requirements of different production scenes.

The invention relates to the technical field of digital twinning, and discloses a precision casting mold life prediction method based on digital twinning, which comprises a mold data acquisition module, a mold data processing module, a mold coefficient generation module, a prediction model establishment module and a mold life prediction module. Physical data, operation data and maintenance records are synchronously collected through the multi-source sensor, and full-life-cycle real-time monitoring is achieved; establishing comprehensive evaluation of four types of quantization coefficients, thermal fatigue coefficients, comprehensive mechanical coefficients, comprehensive wear coefficients and comprehensive maintenance coefficients to realize multi-field damage coupling analysis; the life prediction index unifies the multi-dimensional damage to be 0-1 standard, outputs a visual life percentage and sets a graded early warning threshold value, so that the prediction precision is improved; all coefficients are calculated through a standardized formula, a full-digital process from data acquisition to index generation to model prediction to decision support is constructed, and the detection requirements of new materials and complex structure molds are met.

The invention discloses a vacuum negative pressure vibration assisted precision casting forming method. The method comprises the steps of model preparation, sand box and dry sand pretreatment, layered vibration sand filling, film covering vacuumizing, molten metal smelting and purification treatment, negative pressure vibration pouring, pressure maintaining solidification, segmented temperature control and pressure relief box opening and multi-stage cleaning aftertreatment. The core of the method is that mechanical vibration and a vacuum negative pressure technology are deeply coordinated and penetrate through the whole process of modeling, pouring and solidification, and meanwhile, a series of fine control means such as dry sand accurate pretreatment, molten metal rotary blowing degassing and instantaneous inoculation, stepped negative pressure control, temperature-related segmented pressure relief and two-stage shot blasting cleaning are matched; through dynamic cooperation of vibration and negative pressure, the sand mold compaction uniformity, the molten metal mold filling capacity and the solidification feeding effect are remarkably improved, the casting defects of air holes, shrinkage porosity, insufficient pouring and the like are effectively reduced, and the internal density, the size precision and the surface quality of a casting can be remarkably improved.

The invention relates to the technical field of titanium alloy investment precision casting, and particularly provides a titanium alloy multistage deep blind hole investment casting method which comprises the following steps: designing an exhaust hole and a slag removal hole; establishing a model; assembling and welding; soaking the surface layer in a vacuum negative pressure environment, continuously vacuumizing, deflating after soaking, taking out the module, and rotating to uniformly control the slurry; preparing a surface layer; performing segmented grouting on the deep blind hole; making a shell from a back layer; roasting and molding; washing and drying; pouring is conducted; shell cleaning and sand blasting; sealing and welding the process holes; and performing stress relief annealing. And a dynamic vacuumizing means is adopted, and a vacuumizing device is always kept in an open state, so that the compactness of a surface layer is improved, and burrs of a casting are reduced. Through vacuum dynamic slurry immersion, segmented grouting and collaborative design of the exhaust hole and the slag removal hole, investment precision casting forming of the high-precision oil pump shell can be supported, the shell manufacturing efficiency of the multi-stage deep blind hole is improved, and the filling defect rate is reduced.

The invention relates to the technical field of precision casting, in particular to a casting pouring design method and system based on deep learning. Automatic feature extraction is adopted, and geometric, topological and technological features are automatically extracted from an STP format three-dimensional model of a casting and a pouring system. And constructing a deep learning model, and learning a complex mapping relationship between casting features and a pouring system structure. According to the method, expert experience is fused, casting process rules and expert knowledge are embedded into an AI model through a pre-learning standard model and a structure library, and design reasonability and interpretability are improved. End-to-end generation is adopted, and full-process automation from new casting model input to complete pouring system three-dimensional model output is achieved. The design efficiency is remarkably improved, automatic design from a casting to a pouring system is achieved, and the traditional design period from several days to several weeks is shortened to the minute level. According to the method, the design quality is controllable, and the design is ensured to meet the casting process requirements by embedding a standard model, artificial experience and process rules.

The invention discloses a casting machining and polishing treatment device and method for precision casting, and belongs to the technical field of automatic manufacturing and industrial robots. The multi-axis mechanical arm is mounted on the machining base; the combined treatment head is mounted at the tail end of the multi-axis mechanical arm; the composite processing head comprises an electric spindle grinding machine, a three-dimensional scanner, a structured light projector and a macro camera; and the three-dimensional scanner, the structured light projector and the macro camera are all positioned and mounted by taking the spindle axis of the motorized spindle grinding machine as a reference. According to the motorized spindle grinding machine, a plurality of procedures such as macroscopic scanning, microscopic detection, grinding execution and quality evaluation are physically integrated.

The utility model belongs to the technical field of precision casting dies, and particularly relates to an alloy casting precision casting die which comprises a water tank, a lower die is fixedly connected to the top of the water tank, an upper die is arranged on the top of the lower die, a cooling groove is formed in the lower portion of the interior of the lower die, and cooling circulation pipes are fixedly connected between the two sides of the top of the water tank and the lower die. One ends of the two cooling circulating pipes extend into the lower mold and are respectively communicated with the two ends of the cooling tank; the utility model provides a precision casting mold for an alloy casting, and solves the problems that in the prior art, after the alloy casting is cast, the casting can be demolded and taken out after being naturally cooled, but the natural cooling is very time-consuming, the casting is tightly adhered to a mold groove, and the casting cannot be taken out after being naturally cooled. As a result, labor burden is increased while the demolding efficiency is reduced, the casting cannot be quickly cooled and molded, the casting cannot be quickly demolded, and the residual heat of the mold and the casting can scald workers during demolding work.

The invention belongs to the field of precision casting, and provides a preparation method of an oversized high-temperature alloy precision casting thin-wall casing, which comprises the following steps of: 1, preparing a casing split wax mould, welding an integral wax mould, designing a casing split wax mould structure and a mould structure, pressing the split wax mould, correcting and cooling the split wax mould, and assembling and welding; 2, large-size cartridge receiver modules are combined, and a cartridge receiver wax mold module is formed; 3, preparing a large-size casing ceramic shell, namely uniformly coating the surface of a wax mold with surface layer slurry with a refiner by adopting a spraying tool, spraying sand and drying, coating a transition layer and a back layer layer by layer, spraying sand, sealing the slurry and drying after 20 layers of the shell are coated, feeding into a steam dewaxing kettle, dewaxing, and roasting; 4, smelting and pouring a casing casting, and slowly cooling the poured casting; and 5, post-processing the casting. According to the method, precision casting forming of the oversized casing is achieved, the critical size of a high-temperature alloy precision casting casing casting reaches the CT7 level, and metallurgical defects meet the requirements of the casting.

The invention relates to the technical field of casting, in particular to a precision casting shell making machine which comprises a hoisting part. The hoisting part comprises a driving piece and a hoisting mechanism, the hoisting mechanism is mounted on the driving piece, and the hoisting mechanism comprises a shell, a hanging basket, a sensing assembly and two hanging rods. The two hanging rods are eccentrically arranged on the shell and can rotate along with the shell. The hanging basket comprises a main rod and two hanging arms, and the main rod is connected with a fired mold; and the suspension arm is connected with a lifting hook on a corresponding suspension rod. The induction assembly is installed on the shell. According to the precision casting shell making machine, the axial relative displacement of the suspender is monitored through the induction assembly, eccentricity of a fired mold is fed back, after workpieces in the same batch are cast for multiple times, position exchange is achieved through rotation of the suspender and the shell, the suspender on the high-abrasion side and the suspension arm on the low-abrasion side can be matched again, the abrasion degree of the two sides is balanced, and the precision casting shell making machine is suitable for large-scale production. And the service life of the whole hoisting part is prolonged.

The invention provides a preparation method of a zirconium acetate surface layer shell for titanium alloy precision investment casting, which comprises the following steps: S1, taking a zirconium acetate binder and an anti-redissolution inhibitor, adding an adhesion promoter and deionized water under a stirring condition, and uniformly stirring to obtain a surface layer binder; s2, mixing a surface layer binder with the surface layer refractory powder, adding a wetting agent, and uniformly dispersing the materials to obtain a surface layer coating; s3, performing vacuum negative pressure defoaming on the surface layer coating; s4, in a vacuum negative pressure state, after the wax mold is subjected to uniform slurry soaking in the surface layer coating and pressure maintaining is conducted for 60-300 s, sand spraying and drying are conducted on the wax mold subjected to slurry soaking, and a surface layer shell is obtained; s5, a dewaxing hole of the surface layer shell is opened, and staged hot steam dewaxing is carried out; s6, the dewaxed surface layer shell is roasted, and a shell is obtained; according to the method, redissolution of the zirconium gel surface layer can be effectively inhibited, the compactness of the surface layer can be improved, and the conditions of redissolution, peeling, falling and the like of a zirconium gel surface layer shell process in titanium alloy precision investment casting can be obviously improved.

The invention provides a precision casting and friction welding digital manufacturing method for a basic part of an aero-engine, which specifically comprises the following steps of: 1, preparing a blade by adopting a high-temperature alloy material through a precision single crystal casting process; 2, a titanium alloy / high-temperature alloy / carbon fiber composite material is adopted for preparing a blisk / turbine disk; 3, the blades and the blisk / turbine disc are connected through a linear friction welding technology, and connection of homogeneous or heterogeneous metal or nonmetal is achieved; 4, in the linear friction welding process, data of vibration and force-heat multi-frequency key factors are collected, and support is provided for construction of a digital twinborn model; and 5, a digital twinborn model of the linear friction welding process is constructed based on the collected data. According to the method, key factors such as vibration and force heat in the linear friction welding process are collected and reconstructed, the digital twinborn model is constructed, the welding process can be monitored in real time, the welding quality can be predicted, and a basis is provided for welding process optimization and component performance evaluation.

The invention relates to a pneumatic feeding mechanism and a control method thereof. The mechanism comprises a driving unit, a chain transmission unit, a pneumatic clamping unit and a control system. The driving unit drives a chain wheel through a motor speed reducer to drive the loop chain to lift; one end of the ring chain is connected with the pneumatic clamping unit and the other end is connected with the balancing weight; the pneumatic clamping unit comprises a clamping air cylinder, a clamping rod and a bar clamp and is connected with an external air source through a spiral air pipe. The control system monitors the lifting position and speed in real time through a rotary encoder, and precise control is achieved. Through the innovative chain transmission and pneumatic clamping collaborative design and in combination with an intelligent control method, the problems that an existing feeding mechanism is too high in height, poor in stability and insufficient in control precision are effectively solved, and the feeding mechanism is particularly suitable for the vacuum precision casting furnace environment with the limited floor height. The overall height of the mechanism is reduced by more than 30%, the positioning precision reaches + / -0.5 mm, and the operation reliability is remarkably improved.

The present application relates to wax mold technology field, disclose a kind of large thin-walled wax mold and for wet wax precision casting production process, including fixing frame, the fixing frame is provided with electric push rod, movable mould and fixed mould, the movable mould, fixed mould is provided with heat dissipation mechanism, the movable mould is provided with stripping mechanism, the fixed mould is provided with top pressure mechanism and wax injection port, the movable mould is also provided with rotating mechanism, the rotating mechanism includes motor and locking piece.The present application can demould the workpiece, while avoiding the workpiece from being stuck in the fixed mould, thereby greatly improving the practical convenience, and after demoulding the workpiece, water-based release agent can be sprayed in the fixed mould and movable mould, thereby avoiding the need for manual spraying of water-based release agent, and the forming effect and forming quality of the workpiece can also be improved, finally the locking piece can be automatically driven to contact and lock the fixed mould, thereby greatly improving the practicality and convenience of use.

The application discloses a kind of ceramic core automatic wax filling systems, it is related to precision casting technical field, to solve one of the problems of ceramic core wax filling operation in prior art relies on manual, filling quality consistency is poor, production efficiency is low and waxing needle switching operation is complicated.The ceramic core automatic wax filling system of the present application includes waxing assembly, ceramic core loading tray assembly, wax melting and wax flow control assembly and loading tray displacement servo assembly;The waxing assembly is arranged in the side of the loading tray displacement servo assembly;The ceramic core loading tray assembly is arranged on the loading tray displacement servo assembly;The wax melting and wax flow control assembly is connected with the waxing assembly by pipeline;The loading tray displacement servo assembly is used to drive the ceramic core loading tray assembly to rotate and pitch.The present application can realize the automation of ceramic core wax filling process, improve the consistency of wax filling quality and production efficiency, and facilitate quick switching waxing needle.

The invention belongs to the field of precision casting of metal materials, particularly relates to a short-process preparation method for a wax mould of a hollow casting based on 3D printing and combined assembly, and is particularly suitable for preparing the wax mould of a high-temperature alloy large hollow casting such as a gas turbine blade. The method comprises the following steps: (1) subdividing a three-dimensional model; (2) printing a wax mold part; (3) assembling a mold core and the wax mold part; (4) bonding and combining; according to the method, the wax mold part of the precision casting wax mold is prepared by utilizing the 3D printing technology, and the wax mold part and the mold core are combined together through the combination tool, so that the processes of manufacturing an appearance mold and injecting wax into the mold core are avoided, the production cycle is shortened, the cost is saved, and meanwhile, the qualification rate of the mold shell is increased.

The invention relates to the technical field of impellers, in particular to an integral impeller forming method and an integral impeller, and the integral impeller is manufactured through the steps of manufacturing a water-soluble core, manufacturing an impeller wax mold, removing the water-soluble core in the wax mold, manufacturing slurry of a mold shell, manufacturing the mold shell, dewaxing and cleaning, roasting and forming parts. The water-soluble core is used for supporting the inside of the wax mold, a complex internal structure is formed through an accurate molding process, the size accuracy and the surface quality of the impeller are ensured, then an integral shell is obtained through three-layer coating, alloy is poured into the shell at high temperature to be solidified to form an impeller part, the integrity of the impeller and the consistency of materials are ensured, and the service life of the impeller is prolonged. According to the method, the risk of size inaccuracy caused by secondary splicing of the impeller is effectively avoided, the precision and the quality of a casting part are greatly improved, particularly in the precision casting field such as the aerospace industry or the automobile industry, remarkable technical advantages are achieved, and the performance reliability and the service life of impeller parts are ensured.

This invention relates to the field of casting technology for sand cores and sand shells, and particularly to a method for preparing high-precision casting sand cores and sand shell components based on a coated sand process. The method includes the following steps: rinsing quartz sand and reacting it with a sodium silicate solution to obtain coated quartz sand; adding 3-aminopropyltriethoxysilane and water to the coated quartz sand in a high-speed mixer; sequentially adding modified benzoxazine resin, calcium citrate, magnesium chloride, hyperbranched polyamide, and polycaprolactone-grafted starch to obtain finished coated sand; plasma-treated chromium-12 molybdenum-vanadium mold steel to obtain an amino-modified mold; sand-jetting the finished coated sand into left / right half-shells; shaping and pre-embedding chromite sand cores with chills to obtain left / right half-shell green blanks; milling the surfaces of the left / right half-shell green blanks, coating them with resin, butt-jointing, curing, and deburring to obtain the casting sand core and sand shell. This method solves the problems of poor mechanical strength, poor high-temperature stability, low production efficiency, and poor environmental performance in high-precision casting sand cores and sand shells.

The present application relates to the technical field of high-strength aluminum alloy precision casting, and particularly relates to a ZL205A thin-wall component 3DP sand mold casting process, S1, a digital design casting model and a pouring system simulation are adopted to export a printing slice; S2, a mixture of silica sand and zircon sand is adopted, phenolic resin is used as a binder, and an environmentally-friendly sulfonic acid curing agent is used as a curing system to complete sand mold printing; S3, the sand mold is precisely processed to obtain a to-be-assembled mold; S4, ZL205A alloy is melted and refined, an Al-Ti-B-RE composite refiner is added after refining, the adding amount is 0.4wt%, the refined product is preserved for 15 minutes, and the casting mold is preheated at different temperatures at different thickness positions; S5, local gap pouring and bottom pouring are adopted for pouring; S5, post-processing and qualification detection are performed on the casting, the present application adopts the core advantages of a composite pouring process and a regional gradient preheating process, and completely solves the casting defect pain point of variable-wall-thickness components.

The invention relates to the technical field of old sand regeneration, in particular to an environment-friendly process for regenerating and recycling precision casting old sand. Comprising the following steps that old sand is manually selected, and the crushed old sand is subjected to primary magnetic separation through strong magnetic equipment; the used sand obtained after magnetic separation is ground and rubbed for the first time, the used sand is subjected to magnetic separation for the second time after being ground and rubbed, and the used sand with different mesh numbers is screened out through a screen; the used sand is ground and rubbed for the second time and then screened again, and sand grains are obtained; and the obtained sand grains are subjected to dust removal and magnetic separation procedures, and regenerated used sand is obtained. According to the method, the raw materials are reduced in the grinding process, then the used sand is subjected to strong magnetic separation and screening, then the screened sand grains are subjected to secondary screening and dust removal, the regenerated used sand is obtained, a binder film on the surface of the used sand is fully removed through the first-time grinding and rubbing procedure and the second-time grinding and rubbing procedure, no waste is generated in the whole treatment process, and the method is environmentally friendly. Therefore, the used sand can be recycled and regenerated on the premise of ensuring environmental protection.

The utility model provides a valve core seat, wash basin faucet installation structure and wash basin faucet, wherein the valve core seat is used for communicating the valve core of faucet and the water inlet pipe, the valve core seat is provided with a circular installation part used for jointing the valve core, one side of the installation part facing the valve core is provided with a downwards recessed positioning groove, and the positioning groove is used for positioning the valve core; a plurality of water passing holes are formed in the mounting part, and the side, back to the valve element, of the hole wall of each water passing hole protrudes downwards to form a connector used for being connected with a water inlet pipe; a flange used for being connected with a faucet shell is arranged on the outer side wall of the installation part. Compared with a valve core seat in the prior art, the structure can save more materials, and is light in weight and lower in manufacturing cost; and machining is completed through stainless steel precision casting, mold forming is achieved, size deviation is avoided, and production is better facilitated.

This invention relates to the field of casting mold technology and discloses a precision casting mold for a motorcycle air intake pipe. The mold includes a mold frame mechanism and a high-frequency vibration mechanism, a rotatable striking fin mounted at the center of the bottom of the lower casting mold, a flexible track mounted below the striking fin and rotating with the rotor of a drive motor, a protruding column for rotating the striking fin with the flexible track, and multiple vibrating rods fixedly mounted at the bottom of the lower casting mold and capable of colliding with the striking fin. This precision casting mold for a motorcycle air intake pipe utilizes the high-speed rotating striking fin to collide with the vibrating rods at a high frequency. This collision causes the mold used to manufacture the motorcycle air intake pipe to produce high-frequency vibration. This vibration increases the fluidity of the molten metal, thereby accelerating the upward discharge of bubbles and increasing the bubble elimination rate, thus improving the quality of the finished product.

The utility model relates to the field of investment casting, and discloses a wax mould forming device for precision castings, which comprises a machine table, a hydraulic rod is mounted at the top end of the inner wall of the machine table, a fixing mechanism is arranged at the bottom end of the inner wall of the machine table, the fixing mechanism comprises a positioning assembly and a fine adjustment assembly, the positioning assembly comprises a lower supporting plate, and the fine adjustment assembly comprises a lower supporting plate. The bottom end of the lower supporting plate is fixedly connected to the bottom end of the inner wall of the machine table, a fixing hole is formed in the top end of the lower supporting plate, a lower mold is placed at the top end of the lower supporting plate, an upper mold is connected to the top end of the lower mold in an inserted mode, and multiple sets of positioning rods are connected to the inner wall of the fixing hole in an inserted mode. According to the utility model, by arranging the adjustable fixing mechanism and the wax conveying assembly, the positions of the fixing mechanism and the wax conveying assembly can be freely adjusted during processing, the processing point position can be freely changed by adjusting the positions of the fixing mechanism and the wax conveying assembly, and meanwhile, the fixing mechanism can assist an operator in aligning a mold with a wax injection head.

The application belongs to the technical field of precision casting, and particularly relates to a high-viscosity and high-strength precision casting adhesive wax and a preparation method thereof. The adhesive wax comprises the following components: 30-40 parts of paraffin wax, 16-24 parts of microcrystalline wax, 25-30 parts of petroleum resin, 8-14 parts of rosin resin, 5-10 parts of EVA, 2-5 parts of LDPE and 0.1-2 parts of additives; wherein the LDPE is composed of two kinds of LDPE with different melt indexes. By introducing the petroleum resin, rosin resin, ethylene-vinyl acetate copolymer (EVA) and low-density polyethylene (LDPE) into the paraffin wax and microcrystalline wax base system, and controlling the proportion between the resin system and the polyolefin reinforcing system, the adhesive wax has high viscosity and hardness at 100 DEG C, and the bending strength is improved. Thus, the comprehensive performance of the adhesive wax is achieved, i.e., the adhesive wax is not easy to sag at high temperature, is not easy to be pressed at room temperature, and is not easy to crack under stress.

The application belongs to the technical field of turbine blade precision casting of an aero-engine, and discloses a turbine blade casting mold and a using method thereof, wherein the mold comprises a ceramic core, an upper core head is arranged above a core blade top, a lower core head is arranged below a core blade bottom, a first positioning structure is arranged at a core blade body close to a core tail edge, a second positioning structure and a third positioning structure are arranged at a core blade basin close to a core leading edge, a fourth positioning structure is arranged on the upper core head along a direction perpendicular to the core blade body, a fifth positioning structure is arranged on the lower core head along a direction perpendicular to the core blade body, and a sixth positioning structure is arranged at the core blade bottom along a direction parallel to the core blade body. The six positioning structures are arranged on the ceramic core, the core is controlled by adopting a six-point positioning method combined with a casting drawing, the core lining is cancelled, the position of the core is ensured, the wall thickness and the inner cavity size are solved, the consistency of the inner cavity size of the casting is ensured, and the blade qualification rate is improved.

The application relates to a precision casting forming die for a brake piston, which comprises a fixed die, an intermediate die, a movable die and an ejection assembly, a pressure casting is formed between the intermediate die and the movable die, and a material handle is formed between the fixed die and the intermediate die; the material handle comprises integrally-formed main sprue waste and a runner waste, the ejection assembly is used for ejecting the main sprue waste towards the side of the intermediate die when the fixed die and the intermediate die are opened; one end of the runner waste, which is far away from the main sprue waste, is provided with a clamping block, and a clamping groove matched with the clamping block is arranged on the fixed die. During the process of opening the fixed die and the intermediate die, the end of the runner waste close to the pressure casting is limited on the fixed die, thereby being separated from the pressure casting, the other end is not limited and is pushed towards the side of the intermediate die under the action of the ejection assembly, the runner waste is deformed, thereby keeping most of the runner waste separated from the fixed die and the intermediate die, and finally an operator manually pulls down the runner waste so that the clamping block is separated from the clamping groove.

The utility model belongs to the technical field of precision casting, and provides a regulating valve wax mold forming device which comprises a bottom plate, a side edge seat, a static mold, a movable mold, a sliding seat and a core cylinder. Wherein the side edge seat and the bottom plate are arranged side by side; the static die is fixedly connected to the bottom plate; the movable mold is slidably connected to the bottom plate and can abut against the static mold; the sliding seat is slidably connected to the side seat, and the sliding direction of the sliding seat relative to the side seat is perpendicular to the sliding direction of the movable mold relative to the bottom plate. The core cylinder is connected to the sliding base and can be matched with the movable mold and the static mold to form a cavity used for forming a target adjusting valve wax mold, and the static mold and the movable mold are further matched to form a wax injection opening communicated with the cavity.

This invention relates to the field of precision casting technology, and more particularly to a ceramic core and its preparation method, comprising the following steps: A. Obtaining a ceramic cold core by fused deposition modeling of a ceramic matrix composite material; B. Placing the ceramic cold core in a ceramic core mold, and then injecting ceramic core slurry for injection molding to form a ceramic core matrix, thereby obtaining a ceramic core blank encapsulating the ceramic cold core; C. Obtaining the ceramic core blank by degreasing and calcining. The ceramic core and its preparation method provided by this invention offer advantages in simplifying the preparation process, improving the flexibility of ceramic core preparation, solving the problem of easy depression in ceramic core blanks, and ensuring that the ceramic core is easily disintegrated and cleaned after casting, thus meeting practical application requirements.

The present application relates to the technical field of casting processing device, specifically relates to a copper alloy precision casting multi-station processing device and processing mode, the processing device includes parts and multi-station fixing parts, the multi-station fixing parts include the bottom plate, the fixed plate being arranged on the bottom plate, the angular fixing assembly being arranged on the side of the fixed plate and the axial clamping assembly being arranged on the bottom plate are fixed to the multi-station fixing parts;The angular position of the part is fixed through the angular cylinder control clamping plate and convex body sliding clamping, and the axial position of the part is fixed by using the clamping cylinder, so that one-time multi-piece processing can be realized, the difference of traditional manual clamping by different operators is solved, the yield is improved, the production cycle is reduced, and the production cost is reduced.

This application provides a method, apparatus, and equipment for detecting shell occupancy, relating to the field of casting process and quality inspection technology. It addresses the technical problems in related technologies where, during the investment casting production process, the detection of abnormal occupancy of the loading pallet and the mold chamber pallet via an automatic transfer system for transferring cold and hot shells is inaccurate, and abnormal shell posture cannot be identified in a timely manner. The method includes: acquiring pallet image information; determining the pallet occupancy status and shell posture status based on the pallet image information; acquiring a transfer command signal; generating an abnormal status signal based on the pallet occupancy status, the transfer command signal, and the shell posture status; adjusting the transfer command signal based on the abnormal status signal and the pallet image information to generate a real-time control signal; and controlling the transfer system to perform corresponding operations based on the real-time control signal.

The utility model relates to the technical field of precision casting, in particular to roasting equipment for casting a wax mould, which can rotate a mould shell and uniformly heat the mould shell when roasting the mould shell, improves the roasting effect, and is convenient to use and high in practicability. Comprising a bottom plate, a support, a roasting box and a sealing cover, the roasting box is fixedly installed at the upper end of the bottom plate through the support, a cavity is formed in the roasting box, an opening communicated with the cavity is formed in the left portion of the roasting box, and the sealing cover is installed on the outer side of the opening; the device further comprises a circular ring, a rotating mechanism and a heating mechanism, the circular ring is installed on the rotating mechanism, the rotating mechanism is used for rotating the circular ring, the circular ring is located in the cavity of the roasting box, and the heating mechanism is installed in the cavity of the roasting box and has a heating function.