1077results about "Heating/cooling devices" patented technology

The present invention relates to the technical field of forging, and particularly to an automated piston forging feeding robot. The automated piston forging feeding robot comprises a sliding mechanism, a supporting mechanism, a base, a telescopic mechanism, a pushing mechanism, and a gripping mechanism, wherein the sliding mechanism is fixedly mounted on a walking beam, the supporting mechanism is fixedly mounted at a lower end of the sliding mechanism, the base is movably mounted on the ground, the telescopic mechanism is fixedly mounted in the supporting mechanism, the pushing mechanism is fixedly mounted on the ground, and the gripping mechanism is fixedly mounted at a front end of the walking beam. The present invention solves the problems of the high maintenance costs and high energy consumption associated with existing hydraulic feeding methods, achieves the ejection of billets during device movement, and provides appropriate cooling to prevent sticking. When billet jumping occurs, the hydraulic feeding methods fail to grip a workpiece, which causes the workpiece to remain in a deviated state and results in a failure to correct the position of the workpiece for delivery to a forging area for further processing. The present invention suppresses billet jumping and corrects the position of the workpiece.

The invention discloses a Ti55531 titanium alloy large-specification bar machining method. The method comprises the steps of cogging forging, intermediate forging and finished product forging. In the cogging forging process, the cast ingot alternately deforms at the temperature above and below the phase transformation point temperature, and beta grains are refined through static and dynamic recrystallization; and during recrystallization heating in the beta region, the temperature is controlled to be 30-50 DEG C above the phase transformation point so as to avoid excessive growth of beta grains. In the intermediate blank forging stage, controllable recrystallization annealing is added, and by controlling the forging temperature (15-25 DEG C below the phase transformation point), a part of primary alpha phase is properly reserved to limit rapid growth of beta crystal grains; through 2-3 times of'low + high 'circular forging at 40-60 DEG C and 15-25 DEG C below the beta transformation temperature, and in combination with beta-phase deformation recrystallization, the original beta grain size is remarkably refined, and the forging structure uniformity of a subsequent two-phase region is improved. The method for producing the Ti55531 titanium alloy large-specification (phi 350-600 mm) bar is advanced in process, short in preparation process, low in cost, good in product structure uniformity and high in batch stability.

The invention discloses an efficient homogenizing forging method for a large-size titanium alloy cast ingot, which comprises the following steps of: 1, preserving heat at 150-250 DEG C above a phase transformation point, and forging to ensure that the height-diameter ratio of a forging stock is less than 2.5; 2, forging after remelting and heat preservation; thirdly, forging is conducted after heat preservation is conducted at the temperature 50-150 DEG C above the phase transformation point; fourthly, forging is conducted after heat preservation is conducted at the temperature 20-40 DEG C below the phase transformation point; 5, preserving heat at 10-40 DEG C above the phase transformation point, and cooling with water; and 6, carrying out heat preservation at the temperature of 20-40 DEG C below the phase transformation point, and then forging. According to the method, the height-diameter ratio is suitable for deformation through slow-pressing upsetting and shaping, excessive growth of crystal grains in the deformation process is restrained, and partial stress concentration in the deformation process is released in time, so that it is guaranteed that the crystal grains are broken, and meanwhile cast ingots do not crack; by chamfering, flattening or drawing out, the forging stock uniformly deforms at multiple angles, small deformation of the contact part of the forging stock and the anvil surface and cracking of the side surface of the forging stock under the action of tensile stress are avoided, and the method is suitable for the technical field of titanium alloy material processing.

The invention discloses a short-process low-cost preparation method for forging a TC4 titanium alloy bar. The short-process low-cost preparation method comprises the following steps: (1) cogging and forging a beta-phase region; (2) performing drawing-out thermal deformation on an alpha + beta region; (3) static quasi-beta annealing water quenching treatment; (4) carrying out thermal deformation in a near alpha + beta region; and (5) alpha + beta area small-deformation multi-tempering drawing-out finish forging forming is carried out. The method has the advantages that the requirements of uniform orientation distribution, sufficient grain refinement, process simplification and convenient operation in the short-process low-cost TC4 titanium alloy manufacturing bar are met, the structure uniformity of the large bar is improved, the obtaining of a homogeneous fine structure is facilitated, the requirement of nondestructive testing of the flaw detection clutter level is met, and the product quality is improved.

The invention relates to a multi-station cold heading forming process for a special-shaped pipe fitting of an automobile shock absorber, and belongs to the technical field of cold heading of special-shaped pipe fittings of automobiles. A combined female die with a three-stage gradual-change fillet structure is adopted, and the diameters of fillets are gradually increased to be matched with a gradient stiffness belleville spring buffer unit, so that staging release of stress is realized; a cross section sudden change stress peak value of the root of the flange is eliminated, the crack risk is reduced, a special-shaped punch of a 45-degree helical angle gradually-shrinking type flow guide groove is designed, axial and radial flow of materials is dynamically guided, meanwhile, the filling amount is controlled in real time through a hydraulic adjustable limiting mechanism, and the problems of folding and wall thickness fluctuation are radically solved; three sets of gradient clamping force clamping jaws distributed at 120 degrees and V-shaped pre-indentations are arranged, asymmetric deformation generated by preorder cold heading is compensated in a self-adaptive mode, and the coaxiality error of a special-shaped contour and a flange is reduced. The problems that in the multi-station cold heading process in the prior art, cracks are caused due to stress concentration of a fixed fillet die, and folding defects are caused due to out-of-control flowing of a linear flow guide groove material are solved.

The invention relates to the technical field of cold heading machine feeding and discharging, in particular to a bolt machining cold heading forming machine feeding and discharging device which comprises a cold heading machine body and a transferring mechanism. The transfer mechanism comprises a mounting frame; a mounting plate is arranged on the side, close to the movable module, of the mounting frame. A plurality of clamp assemblies are distributed on the mounting plate, and each clamp assembly comprises two clamp arms; fixed blocks are fixed at the lower ends of the clamp arms; two clamping plates are arranged between the two fixing blocks; each fixing block corresponds to one clamping plate; the clamping plates and the corresponding fixing blocks are in sliding fit through sliding assemblies. The clamping plates and the corresponding fixing blocks are in sliding fit through sliding assemblies. When the two clamping plates clamp a blank and the blank moves in the first direction, the sliding assemblies are used for enabling the clamping plates and the clamp arms to slide relatively, and friction between the blank and the clamping plates is avoided.

The invention discloses a forming die, a forming method and application of a refractory high-entropy alloy gear component, belongs to the technical field of near-net forming of refractory high-entropy alloy gear components, and aims to solve the technical problem that the refractory high-entropy alloy gear component is difficult to form in the prior art. The forming period of the refractory high-entropy alloy gear component is shortened, energy consumption caused by the adoption of a traditional hot forging process is reduced, the production period is shortened, the production cost is reduced, in addition, the high-temperature deformation capacity of refractory high-entropy alloy is improved through the electroplastic effect and the high-temperature softening effect, and the service life of the refractory high-entropy alloy gear component is prolonged. The limitation of ultrahigh room temperature and high-temperature strength of the refractory high-entropy alloy on forming of complex components is effectively solved, and the refractory high-entropy alloy is expected to be applied to forming of other complex components made of high-strength and difficult-to-deform materials and has wide application prospects. The manufacturing method is mainly used for manufacturing the refractory high-entropy alloy gear component.

The invention provides a forming method of an IN617 alloy cylindrical forge piece, and relates to the technical field of forging, according to the method, after an IN617 nickel base alloy cast ingot is subjected to homogenization heat treatment, one-heating-number free forging upsetting, one-heating-number drawing-out, closed upsetting, punching, saddle chambering and core rod drawing-out are conducted, and the IN617 alloy cylindrical forge piece is obtained; by strictly controlling technological parameters in the forge piece forming process, the material utilization rate and the production efficiency can be improved, meanwhile, cracking of the end face of the barrel of the IN617 alloy barrel-shaped forge piece is reduced, and the grain size of the forge piece is further refined.

The invention belongs to the technical field of aviation annular forge piece forming, and discloses a GH4141 high-temperature alloy special-shaped high-vortex casing ring forge piece and a forming method thereof, and the forming method comprises the steps of blanking, upsetting punching, trestle chambering, rectangular pre-rolling, special-shaped pre-rolling and special-shaped finish rolling; the first forging temperature in upsetting punching is 1040-1110 DEG C, the second forging temperature in trestle chambering is 1000-1080 DEG C, the third forging temperature in rectangular pre-rolling is 1040-1060 DEG C, the fourth forging temperature in special-shaped pre-rolling is 1040-1060 DEG C, rolling is performed through at least one heating number, the fifth forging temperature in special-shaped final rolling is 1040-1060 DEG C, and a ring blank is rolled into a ring forging through at least one heating number; and the blank is locally wrapped before the special-shaped pre-rolling and the special-shaped finish rolling are heated. The problems that the GH4141 high-temperature alloy ring forge piece is prone to cracking and uneven in structure in the forging process are solved, the prepared ring forge piece meets the product requirement, the rejection rate is greatly reduced, and crystal grains of the forge piece are even.

The invention relates to the technical field of forging, in particular to a rapid forging hydraulic press which is characterized in that a first opening and a second opening communicating with the interior are formed in the two ends of a shell correspondingly, a first supporting plate is fixedly mounted on the outer side wall of the shell and located on the lower side of the first opening, a first air cylinder is fixedly mounted on the top wall of the first supporting plate, and a movable plate is fixedly mounted at the output end of the first air cylinder; a mold is arranged on the bottom wall of the inner side of the shell, a punch is arranged over the mold, a hydraulic cylinder is fixedly installed between the punch and the inner wall of the shell, a second supporting plate is fixedly installed on the outer side wall of the end, away from the first supporting plate, of the shell, and the second supporting plate is located on the lower side of the second opening. A clearing device is installed on the second supporting plate. A lifting turnover device is mounted in the shell; by means of the removing device, the release agent spraying device and the lifting and overturning device, the problem that metal filings, oxide skin and other residues remain in a mold is solved, and meanwhile the effect of convenient demolding is achieved.

The invention provides a high-temperature alloy forging process which comprises the following steps: S1, taking an alloy cast ingot smelted by a smelting process, and cutting the alloy cast ingot to a required size to obtain an alloy blank, S2, removing defects such as oxide skin and slag inclusion on the surface of the cast ingot through a turning machine tool, S3, slowly heating to 400-600 DEG C through a heating device, and carrying out heat treatment on the cast ingot to obtain the high-temperature alloy. After the temperature is increased to 600-900 DEG C through acceleration, the temperature is increased to 1000 DEG C and kept for 2 hours, and then the temperature is increased to 1150 DEG C and kept for 1 hour. According to the forging process of the high-temperature alloy, when an alloy blank is heated by a heating device, the temperature is slowly increased to 400-600 DEG C, so that a cast ingot is prevented from cracking due to thermal stress, the temperature is increased to 600-900 DEG C in an accelerated mode, the heat preservation time is shortened, surface oxidation is reduced, the temperature is increased to 1000 DEG C and preserved for 2 hours, then the temperature is increased to 1150 DEG C and preserved for 1 hour, and the high-temperature alloy is obtained. Therefore, stress concentration caused by large temperature difference between the surface and the core of the workpiece during forging is prevented.

The invention belongs to the technical field of flange preparation, and particularly relates to a double-boss deep petal type high-performance hub bearing flange and a forging waste heat treatment device, the double-boss deep petal type high-performance hub bearing flange comprises a flange main body, a petal-shaped flange base is integrally formed at the bottom of the flange main body, and boss reinforcing ribs are integrally formed on the flange base. The waste heat treatment device comprises a bottom supporting frame. The conveying assembly comprises a net chain plate used for conveying the flange, the bent position of the net chain plate is sleeved with a sleeve, and a gap is formed between every two adjacent sleeves so as to limit the position of the flange; the air cooling box body comprises a shell provided with ventilation holes, a vertically-downward center installation groove and a side installation groove obliquely facing the conveying assembly are formed in the shell, and a vertical frequency conversion fan and a side frequency conversion fan are installed in the center installation groove and the side installation groove correspondingly. The structure strength and the fatigue durability can be improved, meanwhile, during preheating treatment, the flange can be evenly cooled, and the structure strength and the fatigue durability after production of the flange are guaranteed.

The invention discloses a preparation method of an ultra-fine grain Ti-Zr alloy bar. The preparation method comprises the following steps: a, smelting: mixing and smelting titanium sponge, zirconium sponge and zirconium dioxide to obtain a cast ingot; b, heating the cast ingot to 1000-1050 DEG C, and forging the cast ingot into a bar billet through upsetting and drawing; c, the bar blank is heated to 800-850 DEG C, and the bar blank is subjected to radial forging; d, the bar blank is heated to 600-700 DEG C for the first time and forged in the Z direction; second heating is conducted to 600-700 DEG C, and forging is conducted in the X direction; third heating is conducted to 600-700 DEG C, and forging is conducted in the Y direction; e, the bar blank is heated to 400-500 DEG C, and hot rotary swaging is conducted; f, cold rotary swaging is conducted, specifically, the bar blank is annealed at the temperature of 300-400 DEG C, and then cold rotary swaging is conducted; and g, the bar is subjected to annealing treatment at the temperature of 400 DEG C to 500 DEG C, and the ultra-fine grain Ti-Zr alloy bar is prepared. According to the method disclosed by the invention, the ultrafine grain Ti-Zr alloy bar with small diameter and high strength is prepared, and the industrial application of the implant can be realized.

The invention discloses an automatic forging production line and a production method thereof, the automatic forging production line is used for forging production of small-size ring forgings, the production line comprises a raw material discharging area, a forging area and a finished product storage area which are arranged in sequence, and the raw material discharging area conveys raw materials subjected to cutting and / or chamfering treatment to the forging area for forging through a raw material conveying line; the forging area conveys finished products in the forging area to the finished product storage area through a finished product conveying line. The forging area comprises a first forging assembly used for completing forging forming of raw materials, the first forging assembly comprises a first multi-station heating furnace, ring piece forging equipment, an edge trimmer and a first marking machine, and manipulators are arranged on the side faces of different equipment of the first forging assembly and used for loading and taking materials or moving the materials. The equipment is reasonably arranged in combination with a product production process, so that automatic production of ring forging products is realized, the manufacturing efficiency is improved, the personnel cost can be reduced, the number of on-site practical operation personnel is reduced, the potential safety hazard is reduced, and meanwhile, the processing quality consistency is improved.

The invention discloses a GH625 forged rod and a preparation method thereof, and belongs to the technical field of metallurgy. The preparation method of the GH625 forged rod comprises the following steps that a consumable ingot is subjected to homogenization treatment; the consumable ingot obtained after homogenization treatment is forged; and the homogenization treatment comprises the following steps: preserving heat for 10-30 hours at the temperature of 1100-1150 DEG C and preserving heat for 10-80 hours at the temperature of 1150-1220 DEG C. According to the preparation method of the GH625 forged rod, through the combination of the homogenization treatment and the forging deformation process, segregation and shrinkage porosity formed in the preparation process of the oversized GH625 forged rod can be efficiently reduced, and the product yield and the qualified rate are increased.

The invention discloses intelligent forging equipment and method based on seamless steel pipe machining, and relates to the technical field of needing modification. The intelligent forging equipment comprises a titanium alloy cylindrical blank roller and a temperature control mechanism used for heating the titanium alloy cylindrical blank roller; a supporting and straightening mechanism used for conducting shaping and straightening on the titanium alloy cylindrical blank roller is arranged on one side of the interior of the temperature control mechanism, and a supporting frame is arranged on one side of the temperature control mechanism. Metal can be forced to flow through the hammering acting force of the forging hammer mechanism, small gaps and holes in the metal can be filled, air holes and shrinkage porosity in materials are reduced, the overall density of the materials is improved, potential stress concentration points are reduced, and therefore the reliability of the materials is enhanced; the titanium alloy is subjected to repeated plastic deformation, so that original coarse grains are crushed into finer grains, and grain refinement is beneficial to improving the strength and toughness of the material.

The invention relates to the field of metal pressure machining, in particular to metal part machining cold heading forming equipment and a forming process thereof.The cold heading forming equipment comprises a cold heading machine body, a fixed die, a movable die, a supporting sleeve and an elastic film, and the fixed die and the movable die are arranged on the cold heading machine body in a face-to-face mode; the supporting sleeve is coaxially arranged at the end, close to the movable mold, of the fixed mold, the elastic film is coaxially arranged on the inner side of the supporting sleeve, the elastic film has elasticity and is in a tensioned conical barrel shape initially, the small end of the elastic film is connected with the fixed mold, and the large end of the elastic film is connected with the supporting sleeve so as to define an oil storage cavity with the supporting sleeve and the fixed mold. During forming, cooling lubricating oil in the oil storage cavity is extruded into the cavities of the fixed mold and the movable mold to provide lubricating cooling, after forming, the movable mold is far away from the fixed mold, negative pressure is formed between the movable mold and the fixed mold, and the cooling lubricating oil in the cavities is sucked out; extrusion lubrication and replacement of cooling lubricating oil can be completed once in each cold heading process, and the lubrication effect is improved.

The invention discloses high-strength valve forging equipment and a forging process, and relates to the technical field of die forging machines. A support is fixedly mounted on the upper surface of the workbench, a hydraulic cylinder is fixedly mounted on the inner wall of the support, a mounting plate is fixedly connected to the output end of the hydraulic cylinder, an upper mold is movably clamped to the lower surface of the mounting plate, and a lower mold is movably clamped to the upper surface of the workbench. A positioning assembly used in cooperation with the upper die and the lower die is jointly arranged in the workbench and the mounting plate, an ejection assembly is arranged between the workbench and the lower die, and a cooling assembly used in cooperation with the lower die is arranged in the support. The formed valve is stably ejected out of the lower die, the forging efficiency of the forging equipment is remarkably improved, and the forged valve is rapidly cooled in an air cooling mode through the cooling assembly.

The invention discloses an intelligent production system for ring forgings. The intelligent production system comprises a raw material three-dimensional warehouse used for warehousing / ex-warehousing raw materials and storing warehousing and ex-warehousing information, inventory information, manufacturers, production batches and identification codes of the raw materials; the automatic discharging mechanism is used for cutting and / or chamfering the raw materials; the automatic forging mechanism is used for heating and forging raw materials and is provided with various ring forging rolling devices; the heat treatment mechanism is used for carrying out heat treatment on the forged ring forgings; the automatic detection mechanism is used for detecting the quality of the ring forgings; the finished product three-dimensional warehouse is used for warehousing / ex-warehousing the formed ring forgings; the control system is used for monitoring the production process of the ring forgings, and the control system is in communication connection with other devices of the production system. According to the production system, full-process full-link tracing can be achieved, automatic high-quality production of the annular forgings is achieved, the production efficiency is improved, and the yield of the annular forgings is increased.

The invention provides a titanium alloy multidirectional reversing forging method based on dynamic structure regulation and control, which comprises the following steps of: pretreating a titanium alloy cast ingot and regulating and controlling an initial structure to obtain a pretreated titanium alloy cast ingot; the pretreated titanium alloy cast ingot is subjected to reversing frequency-deformation-temperature field multi-parameter coupling forging, and a forge piece is obtained; and carrying out dynamic recrystallization and solid solution-aging strengthening on the forge piece, and cooling to obtain the titanium alloy. According to the method, through multi-parameter coupling forging of reversing times, deformation and a temperature field of the titanium alloy cast ingot, the coupling refining effect of beta-phase region dynamic recrystallization and an alpha-phase lamellar structure is achieved, and the comprehensive performance such as tensile strength, toughness and fatigue performance of the titanium alloy forged piece is remarkably improved.

The invention relates to the technical field of cold heading, and discloses fastener multi-station synchronous forming cold heading equipment and a forming method.The fastener multi-station synchronous forming cold heading equipment comprises a machine body, a mold is fixedly connected into the machine body, a discharging opening is formed in the machine body, a fixing frame in butt joint with the discharging opening is fixedly connected to one side of the machine body, and a partition plate is fixedly connected into the fixing frame; the top of the partition plate is fixedly connected with two guide plates, the side, close to the machine body, of the top of the partition plate is fixedly connected with a spray head, the partition plate is fixedly connected with a filter screen, the top of the partition plate is rotationally connected with a rotating rod, and the bottom of the partition plate is fixedly connected with a flow guide pipe. And a plurality of transmission plates which are uniformly distributed are fixedly connected to the shaft rod, and a flow guide plate A is fixedly connected to the inner wall of one side of the flow guide pipe. According to the multi-station synchronous forming and cold heading equipment for the fasteners, the problem that screws fall into a vessel in a mess due to the fact that the screws are discharged in a mess can be solved, and the effect that the screws fall into the vessel in a mess is effectively ensured by the equipment while the screws are discharged in sequence; and the screw blanking efficiency is improved.

The invention belongs to the technical field of titanium alloy material processing, and particularly relates to a preparation method of a titanium alloy bar with high crystal orientation uniformity. Comprising the following steps that S1, one-upsetting and one-drawing cogging is conducted in a single-phase area, and remelting and heat preservation are conducted after forging; s2, one-upsetting and one-drawing forging is carried out on the two-phase region, and after upsetting, temperature compensation and drawing-out are carried out; s3, single-phase region heat preservation, and stage cooling after heat preservation; s4, multi-heating-number two-upsetting and two-drawing forging is conducted on the two-phase region, and reversing drawing-out is conducted after upsetting; s5, upsetting and drawing out the two-phase region; s6, drawing out a two-phase region; and S7, forming a two-phase region. The TC11 titanium alloy bar prepared through the process is good in structure and crystal orientation uniformity and has good mechanical performance after heat treatment, the difference of the mechanical performance of all areas is small, and the TC11 titanium alloy bar can be applied to aerospace high-end parts with strict requirements for the alloy structure and performance.

The invention relates to the technical field of metal pipe forging and pressing, solves the problems that the forming efficiency and precision are low due to the fact that the forging and pressing forming process of the special-shaped end of an oil and gas production connector is complex and difficult to control, and particularly discloses an oil and gas production connector forging and pressing forming device and technology. The oil and gas production connector forging and pressing forming device comprises an upper die mechanism and a lower die mechanism, and the upper die mechanism is arranged above the lower die mechanism; the upper die mechanism comprises a press connecting seat and an upper die pressing block connected to the press connecting seat, a first upper forming face, a second upper forming face and a third upper forming face which are sequentially connected in the vertical direction are arranged on one side of the upper die pressing block, and included angles are formed between the second upper forming face and the first upper forming face and between the second upper forming face and the third upper forming face respectively. The lower die mechanism comprises a lower die pressing base, and a forming groove used for containing the end of the connector pipe fitting is formed in the lower die pressing base. The method comprises the steps of material reinspection, blanking, primary heating, primary stamping, secondary heating, secondary stamping forming and the like. The device is used for compression molding of metal pipe fittings, and the machining efficiency and precision are higher.

The invention relates to the technical field of bolt machining, in particular to a bolt machining cold header convenient to collect, which comprises a cold header body, a discharge adjusting device is mounted on the left side of the cold header body, an adjusting and collecting device is arranged at the bottom of the discharge adjusting device, and auxiliary devices are arranged on the outer surface and the left side of the adjusting and collecting device. The adjusting and collecting device comprises an adjusting structure and a collecting structure, the collecting structure is installed at the top of the adjusting structure and comprises a containing box, springs are installed on the bottom face in the containing box, a lifting plate is connected to the top ends of the springs, sliding rods are installed on the front face and the back face of the inner wall of the containing box, and a collecting box is installed on the top face of the lifting plate. According to the bolt machining cold header convenient to collect, by means of the arrangement of the springs, the height of the collecting box can be conveniently adjusted along with the bolt collecting progress of the collecting box, meanwhile, an asynchronous motor is started to drive a transmission piece to adjust the position of a containing box through a connecting block, and the collecting box can be conveniently replaced and collected.

The invention discloses a method for producing a TA19 large-specification titanium alloy bar with a uniform structure, the production process route is as follows: single-phase region forging, 'low-high 'forging, two-phase region upsetting and drawing forging and two-phase region drawing forging, the diameter of the bar finished product prepared by the method is 200-500mm, the structure uniformity is excellent, the comprehensive mechanical property is excellent, and the production cost is low. The method is suitable for industrial production.

The invention relates to the technical field of manufacturing of metal pressing parts, in particular to an efficient forging control method, equipment and system for a high-precision gear shaft, and solves the technical problem that in the prior art, due to the regional difference of material flow and stress distribution, the temperatures of different regions of a shaft body are not uniform in the forging process. The method comprises the steps that vibration time sequence data of the gear shaft in the forging process and temperature time sequence data of multiple positions are collected; according to the temperature time sequence data of the multiple positions, the temperature distribution confusion degree of the gear shaft at each moment is determined; according to the vibration time sequence data, the striking strength sequence of the gear shaft in the forging process is determined; according to the temperature distribution confusion degree and the time sequence change of the strike intensity sequence, the influence degree of strike at each moment on the temperature distribution confusion degree is determined; and according to the temperature distribution chaos degree and the influence degree of each moment, the temperature control coefficient of each moment is determined, and temperature control is conducted on the forging process according to the temperature control coefficients.

The invention discloses a forging method for regulating and controlling the structure uniformity of a TiAl alloy, and belongs to the technical field of TiAl alloy material processing. According to the method, a TiAl alloy ingot is coated with a soft sheath, X-Y-Z three-dimensional six-pass reversing forging is carried out, then the sheath is removed, long-time annealing is carried out, X-Y-Z three-dimensional six-pass reversing forging is carried out again, and a TiAl alloy forging stock with a fine and uniform equiaxed structure is obtained; according to the method, the first round of six-pass forging is conducted on the blank through the X-Y-Z three-dimensional multi-pass reversing forging technology, short-time annealing is conducted between the passes, through the mode of combining dynamic recrystallization and sub-dynamic recrystallization, evolution of a thick and large as-cast structure in a TiAl alloy ingot is promoted, a fine equiaxed structure is formed, the uniformity of the forging stock is improved, and the yield of the TiAl alloy ingot is increased. And the blank is subjected to long-time annealing treatment, growth and spheroidization of residual lamellar structures are achieved, second-round six-pass forging is conducted, the grown equiaxed structures are refined, it is ensured that the TiAl alloy forging stock has the fine and uniform equiaxed structures, and the mechanical property of the TiAl alloy forging is improved.

The utility model provides hexagon bolt blank cold stamping equipment, which relates to the technical field of cold stamping equipment, and comprises a workbench and a water tank, and the top of the workbench is fixedly connected with a lower die. According to the cooling device, the water pump, the communicating block, the first water inlet pipe, the first water outlet pipe and the cooling channel are used in cooperation, so that cooling liquid circularly flows in the cooling channel, the inner wall of the lower die can be cooled, and the cooling effect is improved under the cooperation of the water pump, the communicating block, the second water inlet pipe, the second water outlet pipe, the condensation pipe and the cooling fins. Cooling liquid circularly flows in the condensation pipe, the outer side of the lower mold is cooled, heat can be rapidly and effectively extracted from the lower mold by cooling the interior and the outer side of the lower mold at the same time, the cooling effect on the lower mold is improved, the temperature of the surface of the lower mold can be effectively reduced, friction and thermal expansion can be reduced, and the service life of the mold is prolonged; and the product quality is improved.

The invention provides a gear multi-station hot die forging press capable of rapidly replacing dies, and relates to the technical field of gear machining, the gear multi-station hot die forging press comprises a fixing frame body, and a fixing base is installed at the bottom of the fixing frame body; a spring is installed at the bottom of the guide supporting plate, the side end of the spring is connected with the bottom of the fixing plate, and an open groove is formed in the top of the guide supporting plate. A driving cylinder is mounted at one end of the bottom of the fixing frame body, and a force application guide rod is mounted at the output end of the driving cylinder and penetrates through an open groove in the top of the guide supporting plate; and the force application guide rod is mounted on one side of the bottom of the mold fixing seat in a sliding manner. The guide rod moves upwards to push the mold fixing seat to drive the multi-process mold to move outwards, and the multi-process mold is separated from the clamping plate and falls on the guide supporting plate by utilizing the self weight, so that quick demolding is realized, the replacement efficiency of the multi-process mold is improved, and the problems that the mold is heated to swell due to high temperature of a gear blank, and the mold cannot be directly taken out upwards are solved. The operation process is time-consuming and labor-consuming.

The invention discloses a manufacturing process of an NO7718 nickel base alloy nut for nuclear equipment. The manufacturing process comprises the steps of material preparation, hot forging, shot blasting, solid solution heat treatment, physical and chemical detection, finish machining, precipitation hardening heat treatment and detection packaging. The hot forging near-net forming technology is adopted, the shape of the nut blank is directly obtained through plastic deformation, the cutting allowance of machining is greatly reduced, a large number of raw materials are prevented from becoming sweeps, the material utilization rate is remarkably increased, and the raw material cost is effectively reduced; by accurately controlling the initial forging temperature, the final forging temperature and the cooling speed of hot forging as well as subsequent solution treatment and precipitation hardening treatment, grains can be refined, and the precipitation form and distribution of a strengthening phase can be controlled, so that the microstructure of the material is optimized, and the material obtains more excellent comprehensive mechanical properties such as higher strength, plasticity and toughness cooperation; and the harsh working condition requirements of nuclear equipment can be better met. The process provided by the invention ensures the stability and consistency of product performance.