7116results about "Foundry patterns" patented technology

The sand mold 3D printer relates to the technical field of casting molding, and comprises a box body, a workbench is arranged in the box body, a moving avoiding mechanism is arranged at the top of the box body, and cleaning and material collecting mechanisms used for cleaning a printing head are arranged on the front side and the rear side of the workbench correspondingly. The sanding device and the printing head respectively adopt two mutually independent and vertical driving parts as power, after the sanding device performs unidirectional sanding, the printing head performs continuous printing from front to back, after printing, the printing head moves to the position of the rear cleaning and receiving mechanism for avoiding, and then the sanding device performs reverse sanding, so that the printing efficiency is improved. The printing head conducts reverse continuous printing from back to front, two-way sanding and two-way printing are achieved, the sanding device and the printing head are free of idle stroke, the printing efficiency is high, when the printing head conducts avoiding, the pressure driving assembly drives the automatic cleaning assembly to scrape and clean glue liquid and gravel remaining at the bottom of the printing head, and therefore the printing efficiency is improved. And the bottom of the scraping plate is cleaned through the cleaning mechanism.

The invention relates to the technical field of alloy pouring processes, in particular to a magnesium alloy heterogeneous flow overall coordination pouring process which comprises the steps of conducting pouring numerical simulation through simulation software, optimizing pouring design and determining a composite flow guide structure, a mold temperature control scheme and an alloy component regulation and control strategy. Magnesium alloy smelting and refining are conducted; preheating the mold by using an intelligent temperature control system; during the period, the intelligent temperature control system monitors and adjusts the temperature of the mold, and the online alloy adding system and the impurity adsorption filtering device keep the components of the melt uniform and pure; and after pouring is completed, controlling the mold temperature according to a preset cooling curve to slowly and uniformly solidify the melt. The design of the bionic branch-shaped flow dividing structure, the dynamic adjustable flow guide plate and the like reduces casting defects, and the casting forming quality is improved. And on-line alloy adding and impurity adsorption filtering ensure that melt components are stable, and the casting performance is improved.

The invention relates to the technical field of machine shell casting, and discloses a combined pump body machine shell casting mold and a using method thereof.The combined pump body machine shell casting mold comprises a base, a telescopic rod is fixedly connected to the top of the base, and a mounting plate is fixedly connected to the end, away from the base, of the telescopic rod; when the first piston block moves upwards, the first piston block drives the second piston block to move upwards along the inner wall of the hydraulic cylinder through the fixing rod, so that a solution in the hydraulic cylinder enters the first hydraulic telescopic rod, and the first hydraulic telescopic rod extends outwards; a first hydraulic telescopic rod drives a cross-shaped blocking plate to slide downwards along the inner wall of a second fixing plate through a pulling frame, high-pressure gas in an exhaust groove can be sprayed out through a gap between the cross-shaped blocking plate and the second fixing plate, the high-pressure gas acts on the bottom of a shell, and gas demolding is replaced with the high-pressure gas; and the pressure on the outer wall during demolding of the shell is effectively reduced.

The numerical control machine tool base casting machining equipment comprises a forming mold and a casting ladle mechanism, and the forming mold comprises a mold body, a buckling mechanism, an exhaust mechanism and an air extraction mechanism; the casting ladle mechanism comprises a hoisting mechanism, a casting ladle body and a casting ladle driving mechanism. On the basis that casting machining is not affected, gas generated by thermal decomposition of organic matter in coated sand can be effectively and efficiently exhausted, and therefore the defects of air holes, pits and the like of castings are prevented; and the controllability of casting construction can be improved, so that the safety risk of casting construction is reduced.

The invention belongs to the technical field of casting, and particularly relates to a process for improving the appearance quality of a casting by using a sand-isolating chilling block, which comprises the following steps: step 1, during molding or core making, firstly paving a layer of molding sand between risers or in a hot spot area; step 2, fixing the chilling block by using molding sand or supporting nails to ensure that the position of the chilling block is stable; 3, sand is discharged to wrap the chilling block, and it is ensured that a sand layer is firm through compaction operation; 4, after the molten steel is poured, heat of the molten steel is conducted to the chilling block through the sand layer, the local cooling speed of the casting is increased, and sequential solidification is achieved; and 5, after pouring, heat preservation is conducted till box opening is conducted, and an intact casting is formed. According to the invention, a layer of molding sand with a specific thickness is placed between the external chilling block and the mold, so that the external chilling block is converted into the sand insulation chilling block, and in order to ensure that the chilling block achieves the effect of process design requirements and can effectively play a chilling role on a casting, the thickness and size of the chilling block and the thickness of a sand insulation layer can be properly adjusted according to the size of a hot spot of the casting.

The invention relates to the technical field of casting equipment, and discloses energy-saving furnace roller automatic cooling mold opening casting equipment which comprises an upper mold, a lower mold, an upper locking assembly, a lower locking assembly and a jacking assembly. After casting is completed, cooling liquid is continuously input into the water inlet, the outlet of the lower die cooling cavity is blocked by the sealing column, the cooling liquid is gradually accumulated in the closed lower die cooling cavity, the liquid pressure is gradually increased in a stable and controllable trend, and along with continuous increase of the pressure, the sealing plate is subjected to thrust from bottom to top, so that the sealing effect is improved. When the sealing column moves to the limiting plate, the sealing column is pushed to move upwards, in the process, the liquid pressure is not instantly exploded but is gradually increased, damage of impact force to the mold is effectively avoided, after the sealing column moves to the limiting plate, the rising pressure can push the upper mold to stably rise, and automatic mold opening is achieved. According to the mode that the liquid pressure gradually rises to complete mold opening, an additional power device is not needed, the maintenance difficulty is lowered, and meanwhile a large amount of energy consumption is saved.

The utility model relates to the technical field of mold shell pouring equipment, in particular to a precision casting mold shell vacuum pouring device which comprises a pouring seat, a bottom plate is arranged at the bottom of the pouring seat, a vibration mechanism is arranged between the bottom plate and the pouring seat, and a fixing column, a sealing groove and a mold groove are arranged at the top of the pouring seat. A top plate is fixedly mounted at the top end of each fixing column, a movable plate is arranged on the outer side of each fixing column in an attached and sleeving mode, an upper mold plate and an annular protruding block are fixedly mounted at the bottom of each movable plate, a pressure suction pipe is arranged at the top of each movable plate in a sealed and penetrating mode, and a sealing pressure spring is fixedly mounted on the inner wall of the bottom end of each sealing groove; according to the vacuum pouring device for the precision casting mold shell, by means of the structural design in the vibration mechanism, flowing and distribution of a mixture in the pouring process are facilitated, formation of air holes and shrinkage cavities in the mold shell is reduced, and the density and the surface quality of a casting are improved.

The invention relates to the technical field of alloy materials, in particular to a high-strength alloy material based on a rail transit vehicle and a processing technology of the high-strength alloy material. Raw materials are smelted and cast to obtain a cast ingot; the cast ingot is sequentially subjected to solution treatment and aging treatment, and an alloy material is obtained; uniformly mixing the compound, mica powder, a curing agent and an epoxy diluent, adding epoxy resin, a defoaming agent and a flatting agent, and performing ultrasonic treatment to obtain a corrosion-resistant coating; the high-strength alloy material is obtained by sequentially grinding, polishing, cleaning and drying the surface of an alloy material, coating a corrosion-resistant coating, and curing to form a corrosion-resistant coating. The prepared high-strength alloy material has excellent mechanical properties, corrosion resistance and hydrophobicity, and is suitable for application requirements of rail transit vehicles.

The invention relates to a nickel-based alloy composite plate and a preparation method thereof, and belongs to the technical field of alloy preparation. The alloy reinforcing agent is prepared under the sintering condition of high-temperature reducing gas protection by mixing the lanthanum element and the nanometer aluminum oxide, the granularity can be refined in the smelting process by adding the alloy reinforcing agent, and the wear resistance, hardness, strength and oxidation resistance of the alloy are effectively improved. Nickel is used as a matrix, an alloy reinforcing agent and elements such as molybdenum, copper, boron and hafnium are added, meanwhile, a mixture of potassium chloride and magnesium fluoride is used as a fluxing agent, uniform mixing and reaction of alloy components are promoted, and the nickel-based alloy smelted through step-by-step heating in vacuum has high hardness and strength and good abrasion resistance, corrosion resistance and high temperature resistance; and the stainless steel substrate and the nickel-based alloy plate are tightly combined through welding treatment, and the nickel-based alloy composite plate is suitable for manufacturing a vacuum chamber.

The invention provides a coating for casting an alloy steel lost foam as well as a preparation method and application of the coating. The coating comprises the following raw materials in parts by weight: 79-89 parts of aggregate, 3-7 parts of a binder, 4-7 parts of a suspending agent, 1.5-3 parts of a surfactant, 1.5-2.5 parts of a defoaming agent and 1-1.5 parts of a preservative, the aggregate is prepared from the following components in percentage by mass: 78 to 82 weight percent of bauxite, 12 to 15 weight percent of mica and 3 to 10 weight percent of quartz powder; the binder is prepared from the following components in percentage by mass: 42 to 50 weight percent of anhydrous aluminum dihydrogen phosphate, 18 to 25 weight percent of white carbon black, 12 to 17 weight percent of ethylene glycol and 8 to 28 weight percent of magnesium oxide; the coating for casting the alloy steel evanescent mode keeps good suspension property, high-temperature air permeability, coating property, high-temperature crack resistance and shedding property of the coating, the surface of a casting is smooth and free of burnt-on sand, less harmful gas is volatilized during firing, and harmful gas generated by burning of a white mold can be absorbed.

A casting core assembly has: a first ceramic piece including a projecting post; a second ceramic piece including a socket; and a ceramic filler material between the post and the socket. In transverse section at at least one location one of the post and socket has a configuration of: three circumferentially offset radial peaks of a peak radius (RPMAX, RSMAX); and three radial troughs of a trough radius (RPMIN, RSMIN) not more than 98.0% of the peak radius.

The invention discloses a preparation method of a low-cost high-performance TiAl alloy engine blade, relates to the technical field of TiAl alloy preparation, and provides a method for preparing the TiAl alloy blade by combining precision casting and vacuum isothermal forging. The process route comprises the steps of prefabricated blank smelting and precision casting, annealing heat treatment, vacuum isothermal forging of a blade final forging piece, heat treatment and blade machining, and compared with a cast blade, the mechanical property is remarkably improved, and the yield is also remarkably increased; compared with a traditional forged blade, the manufacturing cost is greatly reduced due to the fact that the process is greatly shortened; compared with ingot casting / rod casting and high-temperature forging, the method has the advantages that the material utilization rate and the mechanical property are improved, and the manufacturing cost can be reduced; in addition, compared with forging under the atmospheric condition, the problem of severe oxidation does not exist, and the material utilization rate and the mechanical property are obviously improved. Therefore, the method provided by the invention has important commercial value.

The invention discloses a sand mold 3D printer for casting, which is applied to the technical field of casting molds, and is characterized in that a structural frame is arranged as a support of a structure and is lifted to a horizontal height convenient to use, a sand supply device is used for extracting sand, and the sand is injected into a sand shakeout device; when the sand material is fed, the sand material is guided by the sand material hopper with a larger area, so that the material is not easy to scatter, then the sand material is guided into the sand storage box, and the arranged stirring shaft continuously rotates on the inner side of the sand storage box and is matched with the spiral blade on the outer side of the stirring shaft to continuously stir the sand material, so that the sand material continuously keeps moving; the adhesive spraying device is arranged in the sand hopper and is relatively uniform in the sand hopper, meanwhile, the effect of smashing caked sand is achieved, the situation that the structure is blocked is avoided, and during manufacturing, the molding box moves to the bottom of the structural frame, and then the adhesive spraying device moves along the horizontal guide rail.

The invention relates to a marine machinery technology, and discloses a casting method of a servo valve body, which comprises the following steps: step S100, making casting equipment of a casting process through three-dimensional mapping design, casting simulation, optimization design and simulation verification in sequence, respectively placing patches, risers and chilling blocks on two sides of a valve core of a mold and the upper surface of the mold, and casting the valve body of the servo valve; a temperature gradient is formed through the synergistic effect of the patch, the riser and the chilling block so as to control and optimize the solidification process of the casting; s200, a series core frame used for connecting the resin chromite sand layer and the ester-hardened sodium silicate sand layer in series is placed in the mold, then the working faces of the mold and the core are filled with resin chromite sand, and the non-working faces are filled with ester-hardened sodium silicate sand; and S300, molten steel smelting is carried out, and the molten steel is prepared from, by percentage, 0.34%-0.35% of C, 0.45%-0.46% of Si, 0.70%-0.71% of Mn, 0.93%-0.95% of Cr, 0.20%-0.30% of Mo, smaller than or equal to 0.025% of S and smaller than or equal to 0.025% of P. The technical problems that in the prior art, a valve body is poor in performance and quality can be solved.

The invention discloses a casting method of a shell, which comprises the following steps: a sand mold manufacturing step: placing a shell mold comprising a pouring system and an auxiliary feeding system on a jolt ramming table of resin sand mixing equipment, buckling a matched welding sand box, and filling sand grains mixed with resin and a curing agent into the welding sand box; after full filling, molding, curing and closing the box; molten iron smelting is conducted, specifically, all the components are molten and then continue to be heated for smelting, tapping is conducted after molten iron is killed, melted down and cooled, and the molten iron comprises, by mass, 3.4%-3.8% of C, 2.5%-3.2% of Si, 0.2%-0.4% of Mn, 0.06%-0.11% of S, 0.2%-0.5% of Cu and the balance iron and inevitable impurities; a spheroidizing and pouring step, specifically, molten iron is poured into a spheroidizing ladle, a spheroidizing reaction is performed in a wire feeding spheroidizing mode, after the spheroidizing reaction is completed, the molten iron is poured into a pouring ladle filled with a covering agent and a nucleating agent, pouring is performed, and stream inoculation is performed in the pouring process; and a post-treatment step: cooling and unpacking after pouring is completed, removing a casting head, polishing, and carrying out stress relief annealing.

A bearing hub casting mold and casting method. The mold comprises part models, risers and a sprue bush, wherein each riser is connected to the top of the part model; the sprue bush is connected to each riser by means of a horizontal runner; and the part models, the risers and the sprue bush are sequentially distributed from bottom to top in a vertical direction. In the bearing hub casting mold, by means of the provision of the riser at the top of each part model, a bearing hub is cast-molded by means of a top-pouring process, and after pouring, there is no isolated liquid-phase region during a solidification process of a casting, and the casting has no shrinkage porosity defect, thereby improving the quality of a bearing hub part.

The invention discloses a casting production device of a corrosion-resistant cast iron cylinder sleeve, and relates to the technical field of cylinder sleeve casting, the casting production device comprises a bottom frame, a bottom shell is fixed on the top surface of the bottom frame, two sliding grooves are formed in the top surface of the bottom shell, the cylinders are fixed on four edges of the top surface of the bottom frame, and the top shell is fixed on the top of the outer wall of the cylinders. An electric hydraulic rod penetrates through and is fixed to the middle of the top face of the top shell, a sliding shell is fixed to the bottom face of the telescopic end of the electric hydraulic rod, the inner wall of the sliding shell is slidably connected with the outer wall of a cylinder, a round mold is arranged in the middle of the bottom face of the sliding shell, a sand mold block and a U-shaped frame are placed in the middle of the top face of the top shell, and the U-shaped frame is fixed to the bottom end in the bottom shell. The sand mold block is clamped and positioned through the two U-shaped frame plates, so that the problem that the casting effect of the corrosion-resistant cast iron cylinder sleeve is poor due to the fact that the sand mold block deviates on the table top is solved.

The invention relates to the technical field of precision casting, and discloses a high-precision control method for stainless steel castings, which comprises the following steps: preparing raw materials, recording component characteristics of the raw materials, designing a formula proportion of the raw materials, carrying out pouring process design, and setting a parameter control system in each link of pouring, according to the shape of the needed stainless steel casting, mold design and manufacturing and mold quality control are carried out, grinding tool design parameters are recorded, a stainless steel casting solidification process simulation model is established according to raw material component characteristics, a raw material formula proportion, a designed pouring process and the mold design parameters, and the casting solidification process is simulated in the model. The method comprises the following steps: predicting a defect area in a casting production process, carrying out advanced prevention and optimization treatment on the defect area according to the predicted defect area in the casting production process, strengthening a refining degassing operation in a casting process, further carrying out a metal solution purification step after refining degassing, and demolding the casting, and the mold is cleaned, checked and maintained in time.

The invention belongs to the technical field of motor casing lost foam casting, and particularly relates to a special coating for a motor casing lost foam as well as a preparation method and application thereof. Through a quantitative formula design method, an aggregate proportion calculation formula based on thermal expansion coefficient matching and a grain size distribution correlation formula based on target air permeability, cooperative compounding of quartz powder and bauxite is achieved, and key functional components such as mullite, organic matter fibers and crystalline flake graphite are combined; the unification of high air permeability and excellent crack resistance of the motor shell lost foam coating is realized. The invention further provides a two-time coating gradient drying efficient process matched with the coating, and on the premise that the coating performance is guaranteed, the production efficiency is remarkably improved, and the energy consumption is reduced.

The invention relates to the technical field of part manufacturing, in particular to a hollow non-straight section composite part which is characterized in that a low-melting-point alloy is used for manufacturing a core mold to serve as a forming inner mold, fiber prepreg is laid on the surface of the core mold and subjected to curing treatment to form a shell structure, finally, the inner mold is removed in a melting mode, and the hollow non-straight section composite part is obtained. According to the hollow non-straight composite material part manufacturing method, the characteristic that materials can be controllably removed is utilized, the mold design is greatly simplified, the manufacturing cost is reduced, and meanwhile the forming freedom degree of a complex geometric structure is improved.

The invention relates to an elevation control and precise regulation and control method for frozen sand mold additive manufacturing in a time sequence space. According to the method, a mathematical model that the thickness of floating sand changes along with time due to moisture heat exchange of the frozen sand mold in air is established, and the thickness of the floating sand of frozen sand molds with different curved surfaces under the parameter conditions of different environment temperatures, time scales, sand mold materials, moisture contents and the like is predicted and fed back; and in the freezing printing process, real-time adhesive and height compensation is carried out on sand molds at different wall thicknesses, and the dimensional precision and geometric precision of the frozen sand molds are protected to a certain extent. According to the method, the problem of dimensional accuracy error caused by floating sand generated by heat exchange in air in the manufacturing and subsequent placing processes of the frozen sand mold is effectively solved, and the dimensional accuracy of the sand mold during casting is ensured.

The invention relates to the technical field of casting pouring, in particular to a pouring device and technology for improving casting pouring ceramic core deviation, the pouring device comprises a casting ceramic mold shell and a support, a necking opening is formed in the middle of the casting ceramic mold shell, and a ceramic plug is arranged in the casting ceramic mold shell; a conveying assembly, a discharging assembly and a heat preservation assembly are arranged on the upper side of the support, the conveying assembly comprises two first rotating shafts, the two first rotating shafts are rotationally connected to the left side and the right side of the support respectively, and first gears are fixedly connected to the rear ends of the two first rotating shafts; according to the scheme, the pipeline path on the lower side of the necking opening is blocked through the ceramic plug, then the flowing path of molten metal in the ceramic plug is changed through the process mode of blocking the middle column pipe, the flowing direction of the molten metal is shown in the figure 2, and the situation that in the pouring process, due to the fact that the molten metal is high in flowing speed and impact pressure is increased, the ceramic core cannot bear pressure, and the pouring quality is affected is avoided. And the problem of core shift is solved.

The invention relates to a casting method of an isothermal quenching nodular cast iron subway wheel, and belongs to the technical field of casting. Comprising the steps of manufacturing a subway wheel casting mold; the method comprises the following steps: firstly, manufacturing a subway wheel metal mold comprising a pouring system, and placing a graphite block and a heating and insulating riser at a mold position corresponding to a large-thickness part of a subway wheel casting or a high-structure-compactness part of the wheel casting; then, an iron mold, graphite and precoated sand composite subway wheel pouring mold is manufactured through a core making machine; proportioning the components of the casting liquid and smelting the components; the smelted pouring liquid is subjected to a spheroidizing inoculation reaction, after the spheroidizing inoculation reaction is completed, the temperature is controlled, pouring is conducted on the manufactured pouring mold, and stream inoculation is adopted in the pouring process; and after pouring is completed, isothermal quenching post-treatment is conducted on the subway wheel casting. According to the casting technology, the solidification process of the casting is controlled to be sequential solidification, it is guaranteed that no isolated hot spot exists in the solidification process of the casting, and the quality of the casting with high internal density is obtained.

The invention relates to the technical field of metal casting, in particular to a preparation method of a casting with a complex pipe cavity and a mold, and the preparation method comprises the steps of mold core preparation, wax mold design, basic wax mold preparation, integral wax mold preparation, mold shell preparation and smelting and pouring. The basic wax mold preparation comprises the step of designing a plurality of block wax molds according to a casting pipe cavity structure; the whole wax mold preparation comprises the steps that a mold core and a plurality of block wax molds are combined and assembled through a splicing tool, so that the mold core is arranged in a multi-angle special-shaped pipe cavity defined by the block wax molds, and a whole wax mold is obtained; wherein partial areas of at least partial pipe bodies of the mold core are the same as the inner diameter of the multi-angle special-shaped pipe cavities in the corresponding positions so as to be precisely matched, and the rest partial areas of at least partial pipe bodies are arranged in the multi-angle special-shaped pipe cavities in a suspended mode. By means of the preparation method, it can be guaranteed that the block wax mold is accurately matched with the mold core, and the size precision of an inner cavity of a later casting can be guaranteed through the size precision of the mold core.

The invention discloses a casting ball production line metal mold preheating device for high-quality copper casting manufacturing, and relates to the field of casting manufacturing, the casting ball production line metal mold preheating device comprises a mold, a heat exchange mechanism, a heat pipe, a cold pipe and a cold and hot switching conveying mechanism; the device has the advantages of being reasonable and simple in structure, low in production cost and convenient to install, efficient circulating preheating of hot liquid is achieved through cooperative operation of the conveying pump, the heat pipe, the cold pipe and other components, the hot liquid fully exchanges heat with the mold in the heat exchange annular groove through the spiral flow guide pieces, and the preheating efficiency is greatly improved; the valve element is driven by the oil cylinder to move to achieve cold and hot passage switching, the function switching from preheating to cooling of the mold can be rapidly completed, the smoothness of the production process is guaranteed, and the production period is shortened; in the cooling process, cold liquid can flow back to the hot liquid cavity after absorbing heat of the mold, cyclic utilization of the cooling liquid is achieved, energy waste is effectively avoided, the production cost is reduced, and the resource utilization rate is increased.

The invention belongs to the technical field of surface engineering, and particularly relates to a laser cladding iron-based corrosion-resistant and wear-resistant coating and a preparation method thereof. The invention relates to a laser cladding iron-based corrosion-resistant and wear-resistant coating which comprises the following iron-based alloy powder components in percentage by mass: 0.2-0.4% of C; 2.0 to 3.0% of B; the content of Cr is 12.0 to 16.0 percent; 0.5 to 1.0 percent of Ti; 0.5 to 1.5 percent of Si; 0.5 to 1.0 percent of Ni; 0.3 to 0.7% of Ce; s is less than 0.03%; p is less than 0.045%; and the balance of Fe. The coating has the beneficial effects that the coating takes the iron-based alloy powder as a raw material, and the iron-based alloy powder is uniformly cladded on the surface of the H13 steel by utilizing a laser directional energy deposition technology, so that a compact and uniform corrosion-wear-resistant cladding layer is formed, and the service life of the material under the working condition of erosion corrosion of molten aluminum is remarkably prolonged.

The utility model relates to the technical field of hub casting molds, and discloses a split type top mold structure which comprises a top mold body, the top mold body is divided corresponding to a rim part of a hub casting to form a split type structure comprising an upper mold and a lower mold, and isolation tables used for supporting the upper mold are arranged on the upper end face of the lower mold at intervals in the circumferential direction. And an exhaust gap for exhausting is formed between the upper die and the lower die. The top die is arranged in a split mode, the upper die and the lower die can be machined and manufactured independently, manufacturing of cooling structures such as an air pipe and a water way is facilitated, and the manufacturing cost of the hub die is reduced; the arrangement of the exhaust seam is beneficial to smooth exhaust of air at the rim part, and the defects of air holes, insufficient casting, flow marks and the like at the rim part of the hub casting are avoided; the positioning structure improves the assembly precision of the top die, ensures the casting quality, ensures the accurate alignment of a bolt hole and a threaded hole, and improves the assembly efficiency; and due to the arrangement of the negative pressure cavity, the exhaust efficiency is improved, and gas in the cavity is exhausted more thoroughly.

A clutch hub body forming method, comprising: obtaining an aluminum alloy melt; providing a squeeze casting mold for a clutch hub body, and filling a charging barrel (11) of the squeeze casting mold with the aluminum alloy melt; after mold filling with the aluminum alloy melt is finished, applying a pressure and maintaining same, so as to form a solidified aluminum alloy casting; performing incomplete solid solution treatment on the solidified aluminum alloy casting; carrying out aging treatment on the aluminum alloy casting that has undergone the incomplete solid solution treatment; and finishing the outer surface and inner mating surface of the aluminum alloy casting that has undergone the aging treatment, so as to obtain a clutch hub body finished product. Further provided are a clutch hub body obtained by the described forming method, and a squeeze casting mold used for the described forming method for a clutch hub body. Aluminum alloy castings obtained by means of squeeze casting have high quality, and involve reduced energy consumption and shortened production periods, thus improving production efficiency and reducing costs; and the aluminum alloy castings have reduced thermal stress, thus reducing the risk of deformation or cracks.

The invention discloses a shell making machine for lost wax casting, and relates to the technical field of lost wax casting, the shell making machine comprises a circulating conveying line, and a first slurry dipping assembly and a sand spraying mechanism which are sequentially arranged along the conveying direction of the circulating conveying line, and the bottom surface of a moving part of the circulating conveying line is fixedly connected with uniformly distributed suspension assemblies; the suspension assembly comprises a fixing rod synchronously moving along with a moving part of the circulating conveying line, the bottom end of the fixing rod is rotationally connected with a telescopic part which stretches out and draws back vertically, the bottom end of the telescopic part is detachably connected with a lifting tool, the first slurry dipping assembly comprises a slurry dipping barrel and a lifting power device driving the telescopic part to ascend and descend, and the lifting power device drives the telescopic part to ascend and descend. And the slurry dipping barrel is correspondingly arranged below the lifting appliance. According to the shell making machine for lost wax casting adopting the structure, a wax mold can be conveniently taken and placed, shutdown and production halt are not needed when the wax mold is taken and placed, and the working efficiency is high.