581results about "Foundry patterns" patented technology

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 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.

[Automotive structural component die casting mold for producing a one-piece automotive structural component blank, which has a maximum longitudinal extent L in the length direction (3) of 2.5 m or more and a maximum width extent B in the width direction (4) of 1.5 m or more and wherein the sprue cavity has at least one feed area (5), wherein the feed area (5) and wherein the sprue cavity has at least one first sprue channel and at least one second sprue channel, wherein the first sprue channel extends from this feed area to at least one first transition point (8), wherein at such a first transition point (8) the sprue cavity transitions into the motor vehicle structural component cavity and wherein the second sprue channel extends from this feed area to at least a second transition point, wherein at such a second transition point the sprue cavity transitions into the vehicle structural component cavity, wherein, in the longitudinal direction between this first transition point and this second transition point, the vehicle structural component cavity is formed by a so-called vehicle structural component floor area cavity and wherein the wall thickness specified by the vehicle structural component floor area cavity for the vehicle structural component blank to be manufactured is less than 12 mm and wherein the at least one first transition point in this longitudinal direction (3) is at least 1.5 m away from this at least one second transition point.]

The present application relates to the field of metal material, specifically to a preparation method of antimony ingot, the mold is preheated, the mold is composed of mold base and release agent; the composition of the release agent contains phosphorus doped boron nitride nanotube; the molten antimony liquid is injected into the mold, and then cooled and demolded, the present application can prolong the service life of cast iron mold and improve the production efficiency of antimony ingot.

This invention discloses a composite gating system and casting method for a lightweight, high-strength, and tough diesel engine cylinder head. The composite gating system includes a sprue, a runner, a stepped ingate, and a top riser. The lower end of the sprue is connected to the runner. The runner is connected to the stepped ingate. The stepped ingate includes a bottom ingate and a middle ingate. The bottom ingate extends downward from the runner and connects to the lower part of the diesel engine cylinder head cavity. The middle ingate extends from the runner and connects to the middle part of the diesel engine cylinder head cavity. The top riser is located at the hot spot of the diesel engine cylinder head, and auxiliary risers are also provided in some hot spot areas. This invention addresses the characteristics of medium-entropy eutectic alloys, such as high melting point, poor fluidity, easy oxidation, and narrow solidification range, by designing a dedicated composite gating system and supporting casting process. This solves the shortcomings of traditional diesel engine cylinder heads in terms of lightweight, strength, toughness, and high-temperature performance, providing a reliable guarantee for improving the overall performance of diesel engines.

This invention belongs to the field of cryogenic sand casting technology, specifically relating to a composite sand mold for cryogenic sand casting and its preparation method. The preparation method includes: based on the size and shape of the casting, the structure and three-dimensional dimensions of the cryogenic sand blank; preparing cryogenic sand blanks according to a preset structure and three-dimensional dimensions; performing subtractive processing on the cryogenic sand blanks according to a preset subtractive processing procedure to obtain a sand mold; wherein the sand mold includes a cryogenic sand mold and a resin sand mold disposed on one side of it; and closing the separately prepared upper and lower sand molds to form a cavity, thereby obtaining a composite sand mold for cryogenic sand casting. The preparation method of this invention can at least improve the problem of floating sand during cryogenic sand mold blank preparation and moldless subtractive processing, while also improving the processing performance of the sand mold and increasing the gas generation during pouring.

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.

A sand core comprising a granular sand material, at least one inorganic binder, and an additive which is aluminum diethylphosphinate. A method for producing a sand core comprising a first contact or mixing step of a granular sand material and at least one binder, and a second curing step, wherein the granular sand material or a mixture of granular material and / or binder contains the additive.

This utility model relates to a casting system that facilitates slag collection and breakage, including a sprue and at least one runner; a filter block, wherein the front runner and the rear runner are respectively connected to the left and right sides of the filter block; the upper end of the rear runner near the filter block has a rear slag collection bag, and the upper end of the front runner near the filter block has a front slag collection bag, forming a clamping joint between the rear slag collection bag, the upper surface of the filter block, and the front slag collection bag. This casting system combines slag removal and breakage functions, reducing the amount of molten slag entering the casting cavity, significantly improving casting quality, and making it easier to obtain intact castings. Furthermore, it is more user-friendly for post-processing of the casting system. The runner is broken at the clamping joint formed at the filter block location, which is the weakest area on the runner, ensuring that it can be clamped within the working strength range of the hydraulic clamps, extending the service life of the equipment.

This invention relates to the field of casting technology, and more particularly to a high-strength drive wheel casting process. The steps include: Step 1, alloy material preparation; Step 2, melting and micro-alloying treatment; Step 3, mold preparation and pouring; Step 4, solidification and cooling staged control; and Step 5, heat treatment process. By optimizing the alloy composition, improving the mold structure, precisely controlling melting and pouring, and adapting the heat treatment process, this invention solves the technical problems of insufficient strength, high defect rate, and poor forming accuracy in existing drive wheels. The invention also improves the structure and adapts the cooling chamber to the process, combining a controlled atmosphere cooling chamber with a staged cooling process. It incorporates partition isolation components, waste heat recovery components, and a temperature control unit, achieving independent partitioned cooling of the casting, precise temperature control, and waste heat reuse. This solves the problems of "airflow interference, uneven cooling, and energy waste" in existing cooling chambers.

This invention relates to the field of water jacket sand core technology, and in particular to a structure and method for increasing venting in water jacket sand cores. Addressing the problems of slow venting speed and inconvenience in existing water jacket sand core venting structures, the present invention proposes the following solution: It includes a water jacket core and a venting mechanism. The water jacket core has multiple venting channels, and a large-sized auxiliary core head is fixed to the outlet of each venting channel. Each of the auxiliary core heads is equipped with a detachable external mold venting pin. The venting mechanism includes a fixed pipe, multiple connecting pipes, and multiple branch pipes fixed to the fixed pipe. This invention adds a large-sized auxiliary core head to the existing small core head structure, simultaneously creating venting channels for the sand outlet and thick structures. Combined with the external mold venting pins on the external mold, a "gas path" communicating with the outside is formed, allowing the large amount of gas generated by the water jacket sand core to be quickly discharged. At the same time, the venting mechanism greatly facilitates the assembly and disassembly of the external mold venting pins.

The utility model provides a kind of heat-insulating agent test block test mould sand system, including pouring system and the symmetrical setting of being set to pouring system both sides a pair of injection liquid cavity;The bottom side of pouring system and injection liquid cavity is communicated;The injection liquid cavity is L type, and including at least one part vertical setting's clear riser cavity.The utility model discloses two injection liquid cavities symmetrical setting, and all from pouring system synchronous injection, the utility model provides a type two heat-insulating agent test block formation scheme, under the same sand mould, same pouring temperature, temperature effect comparison is done, the influence of different furnace steel liquid on heat-insulating agent heat-insulating effect is prevented, pouring temperature fluctuation is reduced to the influence on heat-insulating test result, the height H value of two heat-insulating agent test blocks is substantially same, reduce the influence on the safety height (h value) of V type shrinkage hole.

The utility model relates to a casting riser for automatic glueing belongs to sand mould casting technical field to solve the problem that the existing technology adopts sand mould casting production turbine shell, utilizes automatic core assembly line to produce sand mould, and the glue gun can have spatial interference with the riser, leading to poor glueing effect and traditional heating riser not having exhaust function, and the additional exhaust riser needs to be set, making the glueing period long. The application includes a riser body, the position of the riser body connected with the sand mould extends outward along the riser body to form an extended mounting seat, and the outward extending area constitutes an extended end; the sand mould has a mounting groove corresponding to the mounting seat; when the riser body is installed in the sand mould, the mounting seat is installed in the mounting groove, and the extended end of the riser body and the mounting groove form a glueing area. The casting riser of the application will not have spatial interference with the glue gun, the glueing quality is good, the riser has an exhaust function, can replace the exhaust riser for exhaust, and the casting compactness is good.

This invention provides a modified silicone oil-based emulsion mold release agent and its preparation method. The modified silicone oil-based emulsion mold release agent is prepared from the following raw materials: long-chain alkyl-modified silicone oil, dimethyl silicone oil, emulsifier, catalyst, and precipitated silica; the mass ratio of long-chain alkyl-modified silicone oil, dimethyl silicone oil, emulsifier, and precipitated silica is (10-20):(40-50):(6-15):(1-5); the HLB value of the emulsifier is 7-10; the amount of catalyst is 1%-6% of the amount of precipitated silica; the preparation method of the long-chain alkyl-modified silicone oil includes the following steps: chloroplatinic acid and end-side hydrogen-containing silicone oil are mixed and activated, octene is added, and the mixture is reacted at 85-110℃ for 4-8 hours to remove unreacted octene, thus obtaining the final product. During use, the mold release agent provided by this invention forms a protective layer on the surface of the mold through a cross-linking reaction, which can improve the mold release effect, high-temperature resistance, and durability.

The present application relates to a kind of self-lubricating taper die-casting metal bar for friction stir additive manufacturing and its preparation method and application.The preparation steps of the bar are as follows: design corresponding high-pressure casting mold according to the structure of the bar;heat the mold, then spray release agent on the surface of the mold;Pour the molten metal into the mold, and perform die casting under high speed and high pressure, and it is obtained immediately.The present application directly forms near-net-size metal bar with preset taper by die casting, and the initial fine-grained structure obtained by high speed and high pressure of die casting can regulate the recrystallization behavior in the additive process, so as to obtain uniform and fine structure.The taper structure and self-lubricating effect can reduce the frictional resistance of the bar during feeding, reduce or avoid the use of lubricant, improve the interface bonding quality during additive process, significantly reduce material loss and cost and improve the performance of additive components.

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 invention discloses a positioning device for a cylinder liner metal mold, relating to the field of cylinder liner casting positioning technology. The invention includes: a base platform with two sliding grooves on its top surface, a protective frame on each side of the top surface, and a heat insulation component in the middle of the top surface; a U-shaped frame fixed to the bottom of the base platform; a servo motor fixedly mounted on the right side of the U-shaped frame; a bidirectional screw penetrating and rotatably mounted on the left and right sides of the inner wall of the U-shaped frame, with the right end of the bidirectional screw fixedly connected to the left end of the output shaft of the servo motor; and two internal threaded rings slidably mounted on the outer wall of the bidirectional screw. This invention utilizes the elasticity of springs to slow the movement of the support plate to both sides, thereby avoiding the problem of poor casting effect of the cylinder liner metal mold caused by cooling and hardening during subsequent casting.

This invention relates to the field of casting technology, and more particularly to an efficient casting process based on a high-strength cast pouring cup outer frame. The casting process includes acquiring process state parameters at detection points, obtaining outer frame thermal field parameters and interface pressure field parameters, fusing them to generate a comprehensive pouring feature vector, inputting it into a process state recognition model, determining the current process state category and outputting the category confidence score, thereby obtaining a process category selection set and an accurate recognition rate to determine whether the recognition result meets the standard; selecting the corresponding process state category from the selection set and determining the corresponding compensation degree, thereby performing compensation control operations; finally, determining the control efficiency index based on the re-acquired process state parameters after the compensation control operation, and determining whether to adjust the preset compensation degree until the control effect meets the standard. This invention solves the problem of isolated process parameters and inability to adaptively adjust in existing technologies, effectively improving the demolding success rate and reducing the casting defect rate.

The application discloses a high-liquid-level oil-gas slide casting tool, and relates to the technical field of aluminum alloy oil-gas slide casting. The tool comprises a crystallization mold, the inner top end of the crystallization mold is connected with an adapter plate, the left and right ends of the adapter plate are both connected with liquid level stabilizing mechanisms, the top end of the crystallization mold is connected with a flow divider, a cavity is formed in the inner part of the flow divider, and a closed box body is arranged on the outer part of the flow divider; a vacuum negative pressure module is arranged on the top of the cavity, and an anti-adhesion module is arranged on the left side of the crystallization mold. The tool is provided with a series of structures, realizes constant aluminum liquid level through closed high-liquid-level and negative pressure control, improves the purity of the aluminum liquid, and is provided with an exhaust structure with a capillary hole graphite plug on the adapter plate, cooperates with a gas pressure control system, accurately discharges lubricating gas, eliminates liquid level fluctuation, prevents adhesion and oxidation slag generation, and significantly improves the smoothness of the cast ingot surface and the internal structure uniformity.

This utility model discloses a sand-floating bucket for valve body wax model processing, relating to the field of valve body wax model processing technology. The sand-floating bucket includes a base plate, a stirring mechanism, and a positioning mechanism. An outer bucket is positioned directly above the base plate, and an inner bucket is located inside the outer bucket. The inner wall of the outer bucket is in contact with the outer surface of the inner bucket. The stirring mechanism is located on both the outer and inner buckets and is used to stir the sand particles to prevent clumping. The positioning mechanism is located on the outer bucket and includes a protrusion and a positioning rod. The protrusion is integrally formed on the outer surface of the outer bucket, and the positioning rod movably passes through the protrusion. A positioning hole is formed on the outer surface of the inner bucket, and one end of the positioning rod is inserted into the positioning hole. This sand-floating bucket for valve body wax model processing, through the positioning mechanism, facilitates the removal of the inner bucket from the outer bucket, making it easy to clean the remaining sand inside the inner bucket and facilitating cleaning, thus improving the practicality of the sand-floating bucket.

The application discloses a three-station rotary table for assembling cylinder sand core, which comprises a base, a rotary seat rotatably arranged on the base, three table surfaces circumferentially and symmetrically arranged on the rotary seat, and a driving assembly arranged on the base, and further comprises: a telescopic unit installed on the side wall of the base, with a top block arranged on the output end of the telescopic unit; three positioners circumferentially and evenly arranged on the side wall of the rotary seat, matched with the top block; three supports circumferentially and evenly arranged on the base, with a supporting wheel rotatably arranged on each support; and wear-resistant pads fixedly arranged on the underside of the table surfaces. When the rotary seat is rotated to a position, one of the positioners is matched with the top block, the telescopic unit controls the top block to move and embed into the positioner, so that the position of the rotary seat is fixed, the position stability during the working process is ensured, in addition, when the rotary seat is rotated to the position, each supporting wheel is matched with a wear-resistant pad one by one, so that the stability of each table surface is ensured, and the abrasion is greatly reduced.

This invention discloses an integrated casting process for connectors in a server liquid cooling water distributor system, comprising the following steps: A wax injection machine injects wax into a mold cavity made according to the shape of the connector; the wax cavity is cooled to form a wax mold; the wax mold uses a full silica sol shell-making process, with multiple surface layers, back layers, and sealing slurry applied in stages to form the shell; the shell is poured and cooled to form a casting; residual shell sand particles are removed by sand removal; deformed castings are corrected in one step; threads are machined on the internal surface of the connector casting to form the finished connector; the finished product is inspected for quality using vacuum helium testing; and finally, the qualified connectors are packaged. This invention integrates the connector with the main body during the casting process. The irregularly shaped internal cavity and the external appearance are polished to ensure aesthetics, eliminating significant machining time and reducing manufacturing costs. Furthermore, it eliminates the need for brazing, avoiding the leakage risks associated with brazing.

This invention discloses an intelligent casting mold with a sand-type vent pipe, belonging to the field of casting mold technology. It includes: a frame, with a mold rotatably connected to the frame and an vent pipe installed on the mold; a casting assembly rotatably connected to the frame; a cleaning assembly slidably connected inside the vent pipe; a pressurizing assembly rotatably connected inside the mold; and a driving assembly rotatably connected inside the mold. During the filling process of the molten metal, gas inside the mold can be discharged through the vent pipe, and the lifting frame slides back and forth inside the vent pipe, cleaning the inner wall of the vent pipe. During the filling process, the driven shaft drives the rotor to slide the first and second rotating vanes against the inner wall of the fixed cylinder. Gas inside the mold is drawn into the fixed cylinder and accelerated out from the end of the vent pipe. The airflow can also carry away impurities and dust from the vent pipe, improving the venting effect of the mold during the casting process and ensuring the quality of the mold casting.

A casting mold for producing a casting having a front and a rear side from a curable casting compound, having at least one first mold part with a front mold face that shapes the front side and a second mold part with a rear mold face that shapes the rear side, which mold parts conjointly delimit a casting cavity. Provided on the rear mold face is a first fastening interface and provided on an insert part, by way of which a through hole on the casting is to be formed, is a second fastening interface. The insert part in the case of a closed mold bears on the rear mold face as well as on the front mold face. The two fastening interfaces are releasably connectable to one another in such a manner that, when removing the second mold part from the cured casting, the first fastening interface is automatically released from the second fastening interface.

The application discloses a casting method for a large-scale inline multi-cylinder compressor body, which takes wet sand as a molding material and HT300 as a casting material, and sequentially comprises the following steps: S10, printing a simulation model and testing pouring by adopting a 3D printing casting cavity mode, including printing a casting outer cavity and an inner cavity; S20, hierarchical exhaust sand mold construction, including independent exhaust design of the inner cavity and exhaust needle and riser design of the outer cavity; S30, balanced feeding, calculating a thermal section modulus M of each region of the compressor body by a simulation software, and opening a heat preservation riser in a side wall of a region with a thermal section modulus M greater than or equal to 1.2 cm; a semicircular hole is symmetrically designed on a side close to each other between an adjacent group of cylinder hole cores and regions between the cylinder hole cores, a semicircular cold iron is arranged in the semicircular hole, and an exhaust gap is arranged between a straight line part of the semicircular cold iron and a straight line side wall of the semicircular hole; S40, process control, including sequentially performing sand mold pretreatment, smelting and pouring, cooling and box opening and post-treatment, and the casting has low cost and high quality.

A process for producing a casting mold, comprising the following steps: - Providing a mold (1) with at least two mold parts which can be arranged so that they enclose a cavity (K) between them, - Arranging a filling device (2) on at least one first mold part of the at least two mold parts, such that a first cavity (H) remains between a surface area (1.1) of the first mold part, which limits the cavity (K) that can be formed between the mold parts, and the filling device (2), which is a partial area of ​​the cavity (K) that can be formed between the mold parts, - Introducing a molding material (3) into the first cavity (H) through one or more channels (2.2) formed in or by the filling device (2), - Removal of the filling device (2), whereby the molding material (3) remains on the first mold part, - Arranging a calibration device (4) on the first mold part, such that a second cavity (H') is formed between the first mold part and the calibration device (4), which contains the molding material (3), such that a surface area (4.1) of the calibration device (4) limiting the second cavity (H') contacts the molding material (3), - Heating the surface area (4.1) of the calibration device (4) that defines the second cavity (H') and a surface area of ​​the first mold part that defines the second cavity (H'), - Removal of the calibration device (4), - Arranging the first mold part, on which the molding material (3) is arranged, on at least one further mold part of the at least two mold parts, so that the cavity (K) is formed between them, wherein the molding material (3) is arranged within the cavity (K) on the surface area (1.1) of the first mold part, which delimits the cavity (K), and a free volume of the cavity (K) defines a mold for a molded part (5) to be cast.

This invention relates to the field of casting technology, and more particularly to a precision casting molding device for brake pump housings of new energy vehicles. The device includes a casting frame, on the surface of which a mold assembly and a holding furnace are mounted. An exhaust assembly is mounted on the surface of the mold assembly. The mold assembly includes a support plate slidably connected to the surface of the casting frame, and a lower mold is mounted on the surface of the support plate. Through the cooperation of the exhaust assembly and a swing assembly, when the exhaust assembly is working, an air pump performs an air extraction operation. The airflow enters the drive air pipe and pushes the piston plate to move, converting the airflow power into the swing power of the swing assembly. The mold swinging motion is synchronized with the air extraction progress. The swing assembly starts when the air pump is working and stops synchronously when air extraction stops, avoiding continuous ineffective swinging. The swing assembly drives the mold to swing slightly, thereby greatly improving the precision of the casting and meeting the precision casting requirements of brake pump housings.