99 results about "Precision casting" patented technology

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.

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.

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 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.

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.

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 belongs to the field of precision manufacturing technology discloses a brake parts gradient cooling precision casting mould, including casing, upper die and lower die, the top wall of casing is fixed with a support rod in four corner parts, the top fixed connection of support rod has first fixed plate, and first fixed plate is provided with dismounting mechanism, and the mould closing mechanism is provided on the casing, and the dismounting mechanism includes hydraulic ware, hydraulic rod, second fixed plate, slot, plug rod, first sliding slot, clamping block, first sliding block, two -way screw rod, second sliding block, third fixed plate, second sliding groove. The utility model discloses through setting up dismounting mechanism, makes brake parts gradient cooling precision casting mould have the function of convenient dismounting, can replace mould quickly and conveniently, is suitable for the requirement of different mould to different brake parts, can reduce the time and manpower cost because of mould adjustment, maintenance, improves the flexibility and production efficiency of production.

This invention discloses an integrated adaptive filling and venting device for high-pressure casting of aluminum alloys, comprising a mounting plate integrally formed from high-strength cast iron, serving as the mounting and bearing foundation for the entire device. A support base is bolted to the top, the support base being a hollow frame structure with an open top, used to support and provide stable support for the fixed mold base. The fixed mold base is located on top of the support base, and the fixed mold base is sealed and fixedly connected to the support base. A mold groove is provided on the top of the fixed mold base. This device achieves integrated and automated filling, venting, and demolding. Adaptive reciprocating filling and venting thoroughly removes impurities from the mold cavity, avoiding casting defects; gas-free demolding protects casting precision; precise pressure control adapts to multiple casting specifications; compact structure, reliable operation, improves production efficiency and casting qualification rate, reduces labor and maintenance costs, and meets the needs of high-end aluminum alloy precision casting.

The utility model relates to automatic shell manufacturing line technical field, and specifically is a kind of precision casting automatic shell manufacturing line feeding and discharging vehicle, including rack, fixed with mounting mechanism and two fixed rods on the rack, the mounting mechanism is engaged with lifting mechanism, rotatingly installed with material storage mechanism on the fixed rod, the material storage mechanism includes pivot and connecting rod, pivot is rotatably connected in the fixed rod, the pivot is fixedly installed with connecting rod, connecting rod is fixedly connected with carousel on it, carousel is engaged with the installation of several clamping blocks in ring shape equidistant on it, clamping block is fixedly connected with hanger bar and lifting ring on it;Pivot drives connecting rod and carousel rotation, and through tool lifting ring, make it will hanger bar and clamping block be limited in carousel, further in the shell mold of being hung in the end of hanger bar is conveniently fed and discharged while being convenient for installing hanger bar on carousel.

The present invention aims to provide a stirring device for precision casting, and more specifically, to provide a slurry stirring device for precision casting that generates a vertical circulation flow by rotating a tank, thereby preventing slurry sedimentation and extending the service life of each conventional device. [Solution] The present invention relates to a slurry stirring device for precision casting, which stirs a slurry that is a solid-liquid two-phase fluid consisting of a liquid phase and powdered particles. The device comprises a base, an arm fixed to the base, a rotary drive unit, a tank rotated by the rotary drive unit, a stirring blade fixed to the arm and positioned at the bottom of the tank, and a vertical shielding plate fixed to the arm and positioned at the side of the tank. The device employs a configuration that generates not only circumferential circulation flow but also vertical circulation flow to prevent slurry sedimentation.

The utility model relates to a vibrating screen belongs to precision casting technical field, solves the problem of the prior art vibrating screen noise is big, and the problem of inconvenient cleaning. The utility model discloses a screen body, connecting assembly and lifting assembly, the screen body sets up below the sand shower machine, and connecting assembly is used for connecting the screen body and the sand shower machine, and lifting assembly sets up the one end of screen body far from connecting assembly, is used for the screen body elevating, and connecting assembly is the belt structure, and lifting assembly includes steel wire rope and ratchet. The utility model can realize vibrating screen noise small, and it is convenient to clean.

The utility model discloses a kind of lost foam hollow shell precision casting model assembly structure, it is related to lost foam casting technical field.It includes base and the mounting bracket oppositely arranged on the left and right sides of upper end of base;Left mounting bracket is fixed with base;Right mounting bracket is slid with base in left and right direction by sliding member;Mounting bracket is vertically arranged;At least two rows of mounting holes are distributed from top to bottom on mounting bracket;Adjusting limiting assembly is arranged in mounting hole;The adjusting limiting assembly includes the support disc of rotation sleeve in mounting hole;Handle is fixed on support disc;Mounting bracket is fixed with the connecting frame corresponding with support disc;First stop bolt for positioning support disc is threadedly connected on connecting frame;One end close to each other on left and right sides support disc is connected with base.

This utility model discloses an integral bending roll cylinder pad block device, including a frame, with lower roll bearing seats at both ends of the frame, and pad blocks on the upper surfaces of the two lower roll bearing seats; a lower roll is rotatably mounted between the two lower roll bearing seats, and an indicator ring is fixedly sleeved on the tail end shaft of the lower roll. This utility model replaces two independent pad blocks with a single integral bending roll cylinder pad block. The integral pad block is made of high-strength, wear-resistant material and is formed by precision casting or forging. Surface hardening treatment is applied to the contact surfaces of the integral pad block with the piston rod and the working roll bearing seat to improve surface hardness and wear resistance, reducing wear and deformation. High-precision positioning bosses are provided on the integral pad block, corresponding to grooves on the lower working roll bearing seat, ensuring accurate positioning of the pad block during installation and preventing displacement during rolling.

This invention discloses a rapid cooling device for precision alloy castings, relating to the field of ship component casting technology. The invention includes a base plate with symmetrically fixed sliding structures at its upper end. A driving structure is located on one side of the sliding structure, and a placement structure is symmetrically slidably connected to the upper end of the sliding structure. A positioning structure is fixedly connected between the two placement structures at the upper end of the base plate, and a heat dissipation structure is fixedly connected to the upper end of the placement structure. A storage structure is symmetrically fixedly connected along the centerline at the lower end of the base plate. A transmission structure is provided between the two storage structures and the transmission structure. A drive motor drives a drive gear to rotate, which in turn drives a synchronous toothed belt, transmission gear, and rotating rod to rotate synchronously. This causes the two sliders on both sides to move closer together, allowing the placement plate to precisely engage with the positioning structure through the mounting groove and positioning hole. Simultaneously, the two housings are spliced ​​together through insertion pipes, achieving precise positioning of the casting mold within the housing cavity and complete fit with the housing.

1. Name of the product in this design: Lifting and Rotating Mechanism. 2. Application of this design: Used for lifting and rotating materials added to an equiaxed crystal vacuum precision casting furnace. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

This invention provides a welding machine for assembling and splicing precision castings, relating to the field of welding machine technology. It includes a welding frame with a positioning area and adjustment areas on both sides of the positioning area. A welding robot is mounted on the side of the welding frame via a welding machine mounting base. The machine also includes a longitudinal adjustment frame, a longitudinal abutment component, a parallel positioning component, and an adaptive clamping component. Longitudinal adjustment frames are slidably mounted on both sides of the welding frame, and transverse adjustment frames are slidably mounted on the longitudinal adjustment frames. A longitudinal abutment component is mounted on the side of each transverse adjustment frame away from the positioning area. A parallel positioning component is installed within the positioning area, and an adaptive clamping component is mounted on each transverse adjustment frame. This invention provides a welding machine for assembling and splicing precision castings, solving the technical problem in related technologies where rigid clamping structures are difficult to adapt to the irregular shape of precision castings, leading to easy scratching of the castings during clamping and difficulty in maintaining stable clamping.

This application relates to the field of precision casting equipment technology, and discloses a silica sol precision valve casting device, including a shell-making chamber and a main shaft disposed inside the shell-making chamber for holding a wax model. An eccentric variable acceleration drive mechanism, connected to the main shaft, is disposed outside the shell-making chamber to drive the main shaft to rotate and periodically generate sudden changes in angular acceleration. The main shaft has a coaxial torsional impact vibration excitation mechanism inside, triggered by sudden changes in angular acceleration, which generates circumferential tangential impact vibration inside the main shaft. The eccentric variable acceleration drive mechanism is coaxially linked to the drive end of a follow-up pulse air pump mechanism, and the air outlet end of the follow-up pulse air pump mechanism is connected to the central gating channel of the wax model. By setting up a closed-loop variable pressure bottom injection system with a pressure-resistant chamber and a bottom lifting piston, the device can smoothly push silica sol slurry from bottom to top in a high vacuum environment using static pressure difference, ensuring the density and defect-free rate of the inner surface of the precision valve shell.

This invention belongs to the field of wax pattern injection molding and discloses a precision casting injection molding die and its quality inspection method. The aim is to solve the problem that current wax pattern molding technology suffers from dimensional deformation after molding due to fluctuations in equipment pressure, flow rate, and time control. Traditional equipment inspection methods struggle to accurately assess these fluctuations, making quality inspection difficult. The injection molding die of this invention includes a runner I, a part wax pattern body, a runner II, a stepped sample, and flow indicator scale lines. During wax pattern injection, the wax liquid passes through the part wax pattern body and further fills the stepped sample. The flow indicator scale lines provide the flow capacity index of the wax pattern filling, reflecting the injection pressure, flow rate, and time characteristics of each wax pattern. This allows for timely recalibration of equipment parameters when the injection quality of the wax pattern changes, maintaining the wax pattern flow index within a stable range and ensuring the injection quality of the wax pattern.

This invention discloses a biodegradable water-soluble core mold material for precision casting and its preparation method. The material is composed of a chitosan-gelatin-polylactic acid ternary composite system, modified bamboo fiber, and a crosslinking agent. Through component screening and process optimization, the material achieves a synergistic improvement in mechanical properties while maintaining excellent water solubility (dissolution rate 0.5-0.8 g / min). Its flexural strength reaches 8-12 MPa, and its elongation at break reaches 30-50%, while also exhibiting good toughness and thermal stability (heat distortion temperature ≥60℃). This material is completely biodegradable, offering significant environmental advantages. It can replace traditional polyethylene glycol-based core mold materials and is widely used in precision casting in aerospace, automotive, and medical device fields, meeting the demands of green manufacturing.

The utility model relates to the field of precision casting, and specifically discloses a sprue rod convenient to identify, which comprises a sprue rod and a sprue cup integrated with the sprue rod, the side surface of the sprue cup is welded with an identification block, and the surface of the identification block is provided with a material quality mark, the utility model welds the identification block on the side surface of the sprue cup, the specific material quality can be directly seen by using the material quality mark on the identification block, and the identification block is single, the identification block of the same batch of material quality can be prepared in batches, the cost is low, and the preparation is convenient.

This invention relates to the field of precision casting technology and discloses a method for directional solidification casting of high-strength gas turbine blades. The method includes: adding solid inorganic fibers, hollow ceramic fibers, boehmite sol, and scorchable organic short fibers to a ceramic shell slurry; preparing a shell green body through multi-layer coating; dewaxing with high-pressure steam; and calcining in an air atmosphere. The organic short fibers scorch to form three-dimensional interconnected permeable micropores, and the boehmite sol is converted in situ into an alumina ceramic bonding phase, resulting in a multifunctional composite fiber-reinforced ceramic shell; the shell is then placed in a directional solidification furnace to pour high-temperature alloy melt, completing the directional solidification casting. This invention, through the synergistic effect of four functional components, simultaneously achieves shell toughening and thermal shock resistance, reduces lateral thermal conductivity, improves permeability, and strengthens the fiber-matrix interface bonding, effectively reducing casting porosity defects, improving the axial temperature gradient during directional solidification, and enhancing the quality of the blade casting.

This invention belongs to the technical field of aluminum alloy precision casting manufacturing processes, specifically relating to a low-pressure filling semi-solid pressurized solidification device and preparation method for aluminum alloy compartment metal molds. Using the device and preparation method of this invention, high-strength, low-gas-emission integral ceramic sand cores can be prepared. The gas emission of the core is reduced from 30 ml·g compared to traditional furan self-hardening resin sand and PEP-SET self-hardening resin sand. ‑1 The above was reduced to 18 ml·g ‑1 The present invention, by arranging built-in oil-heat circulation pipes, top-mounted hydraulic cylinders, and hydraulic cylinder bearing blocks in a metal mold, can perform pressure solidification of the alloy melt in a semi-solid state, significantly eliminating porosity defects caused by insufficient feeding or high gas content during the solidification process of aluminum alloy compartments; and by embedding built-in water-cooled circulation pipes in the metal mold, the as-cast microstructure of the aluminum alloy compartments is significantly improved.

The utility model relates to impeller casting field especially to control complex many hot node stainless steel impeller precision casting loose defect's pouring system, including casting mould, be provided with cavity in casting mould, still include sprue cup and at least three transverse gates, and the bottom of transverse gate and sprue cup intercommunication, three transverse gates are in the same plane, and the included angle between any two adjacent transverse gates is consistent, the bottom surface of transverse gate is provided with outer ring ingate and inner ring ingate, and outer ring ingate and inner ring ingate all with cavity intercommunication, and the distance between outer ring ingate and sprue cup is greater than the distance between inner ring ingate and sprue cup. The utility model discloses through setting up multiple evenly arranged transverse gates and the setting of inner ring ingate and outer ring ingate, can pour the impeller from the outer ring and the inner ring, makes the inside and outside uniform in the pouring process, reduces isolated liquid phase area and cavity, thereby improves the quality of the product obtained by pouring.

This invention belongs to the field of non-ferrous metal casting technology and discloses a low-pressure process for precision casting of magnesium alloy using a high-temperature sintered shell, comprising the following steps: Step 1: Preparing an investment mold assembly; Step 2: Bonding graphite chills to the thick and hot sections of the investment mold assembly; Step 3: Applying slurry and sprinkling sand layer by layer onto the investment mold assembly after bonding the graphite chills; Step 4: Dewaxing and sintering the investment mold assembly after slurry application and sand sprinkling to obtain a ceramic shell; Step 5: Shaping the ceramic shell to form an upper sand mold and a lower sand mold; Step 6: Assembling the upper and lower sand molds to form a composite structure mold; Step 7: Melting the magnesium alloy; Step 8: Low-pressure casting of the magnesium alloy in the composite structure mold; Step 9: Inspecting the cast parts.

The application relates to a variable-structure core and wax mold, and belongs to the technical field of precision casting. The application comprises a core mold and a wax mold; the core mold comprises a lower core mold and an upper core mold, and can form a core injection cavity and a positioning end movable block cavity; a lower positioning end movable block and an upper positioning end movable block can form a core positioning end cavity, and a plurality of groups of the lower positioning end movable block and the upper positioning end movable block can form a plurality of core positioning end cavities; the wax mold comprises a lower wax mold and an upper wax mold, and can form a wax injection cavity and a wax movable block cavity; a lower wax movable block and an upper wax movable block are embedded in the wax movable block cavity, and a plurality of groups of the lower wax movable block and the upper wax movable block can form a plurality of wax positioning end cavities. When the wall thickness is out of tolerance or the core is broken between the core and the shell, the application can flexibly adjust the positioning mode, so as to solve the problems of long debugging period, high cost and poor process adaptability caused by the solidification of the positioning end structure of the mold in the prior art.

This invention relates to the field of precision casting of high-temperature alloy blades, and particularly to the field of preparing precision casting mold shells for aircraft single-crystal blades. The invention involves mixing different types of fused mullite powder and corundum powder with silica sol of varying specifications to form a slurry, which is then combined with corundum sand or fused mullite sand of different mesh sizes to prepare the mold shell. After dewaxing and calcination, the mold shell is obtained for preparing single-crystal turbine blades. The single-crystal blade mold shell prepared by this invention can effectively prevent recrystallization on the blade surface, reduce the blade recrystallization scrap rate, and save production costs.