861 results about "Forge" patented technology

The invention relates to the technical field of metal forge piece machining, in particular to an irregular metal forge piece heat treatment method and system.The irregular metal forge piece heat treatment method comprises the steps that firstly, temperature compensation partitions are divided according to geometrical characteristics, and stepped preheating is implemented to establish a uniform basic temperature field; then, the heat preservation time of each subarea is independently regulated and controlled in the austenitizing stage, and sufficient transformation of a thick-wall area structure and control over the grain size of a thin-wall area are both considered; in the quenching process, partition strength adjustment is carried out based on a preset cooling map, and cooling parameters are dynamically optimized through real-time feedback; and finally, according to the residual stress distribution, carrying out partition stepped tempering. The heating and cooling uniformity is remarkably improved through partition dynamic temperature management, and the structure difference and thermal stress concentration caused by section sudden change are effectively inhibited; the microstructure is ensured to be uniform and stable through austenitizing control; the hardenability and the deformation resistance are balanced through a differential cooling strategy; and directional reduction of residual stress is achieved through an intelligent tempering mechanism, and the cracking risk is greatly reduced while the comprehensive mechanical property is improved.

The invention discloses a preparation method of a high-homogeneity and high-stability copper target material, which comprises the following steps of: 1, cutting off a riser of a high-purity copper cast ingot, and turning to obtain a pretreated high-purity copper cast ingot; secondly, the pretreated high-purity copper ingot is heated and subjected to heat preservation in a furnace and then forged to obtain a forged copper blank; thirdly, the forged copper blank is subjected to room-temperature circumferential rolling treatment, and a rolled copper blank is obtained; fourthly, the rolled copper blank is subjected to two-stage annealing heat treatment, and a copper target blank is obtained; and 5, machining, cleaning and packaging to obtain the high-homogeneity and high-stability copper target material. According to the method, the high-purity copper cast ingot is sequentially subjected to pretreatment, forging, room-temperature circumferential rolling, two-stage annealing, machining, cleaning and packaging, preparation of the high-quality copper target material which is uniform in structure, controllable in crystal orientation and excellent in heat stability is achieved, the sputter coating quality is improved, and the method is easy to operate, high in controllability, high in production efficiency and suitable for industrial production. Meanwhile, raw materials and production cost are saved, and the method is suitable for large-scale popularization and application.

The utility model relates to the technical field of forge piece quenching treatment, in particular to a forge piece quenching device which comprises a base plate, symmetrically-distributed supporting legs are fixedly installed on the two sides of the bottom of the base plate, a quenching box is fixedly installed on one side of the top of the base plate, and a cooling box is fixedly installed on the other side of the top of the base plate. According to the forge piece quenching device, the base plate, the supporting legs, the cooling box, the driving mechanism, the clamping pieces, a cover plate, a sliding groove, an adjusting lead screw, an adjusting block, an electric telescopic rod, a main shaft, a quenching box, a second motor, a mounting groove, a worm gear, a worm and a supporting plate are used in cooperation, the two clamping assemblies are arranged, and the positions of the two clamping assemblies can be exchanged; the quenching cooling process of the forge piece is alternately carried out, so that the waste of time and energy is reduced, the processing capacity of the device and the control of the production cost are improved, and the design is simple and practical.

The invention relates to the field of size measurement of large forge piece rings, and provides a large forge piece ring radial size measuring device and a measuring method thereof.The device comprises a bottom plate, supporting legs, a feeding mechanism, a check block, a moving mechanism, a lifting mechanism, a detection mechanism and an interaction panel, and the supporting legs are arranged at the four corners of the bottom of the bottom plate; a feeding mechanism is arranged in the middle of the top of the bottom plate, a mounting block is arranged at the input end of the feeding mechanism, a stop block is mounted at the other end of the feeding mechanism through a moving mechanism, and a first laser measuring head used for measuring the interval between the mounting block and the stop block is arranged at the upper end of the mounting block; through the first laser measuring head and the second laser measuring head, the outer diameter of the ring piece can be preliminarily detected, then the inner diameter and the roundness are detected through the measurer, the function of radial measurement is achieved, the state of the side face and the roundness of the ring piece can be detected, and the detection accuracy is improved. Therefore, the functionality and the practicability of the device are greatly improved.

The invention discloses a heat treatment method for improving the low-temperature impact performance of 12Cr13 martensitic stainless steel in the technical field of heat treatment. The heat treatment method comprises the following steps that S1, water quenching pretreatment is conducted, specifically, a forge piece is heated to 940-960 DEG C, and heat preservation is conducted for 1-2 h; s2, quenching cooling: after heat preservation of the forge piece is finished, discharging and water-cooling; s3, quenching and heating: heating the forge piece to 830-850 DEG C, and keeping the temperature for 1-2 hours; s4, quenching cooling: discharging and water-cooling the forged piece after heat preservation is finished; s5, high-temperature tempering is conducted, specifically, the forge piece is heated to 600-680 DEG C, and heat preservation is conducted for 3.5-4.5 h; and S6, tempering and cooling, wherein after heat preservation is finished, discharging and air cooling are conducted, and cooling is conducted to the room temperature. According to the method, the material fastener forge piece is subjected to water quenching pretreatment and fine grain treatment, then the fastener forge piece is heated at the temperature lower than the conventional austenitizing temperature for subcritical quenching, a small amount of retained austenite structures are obtained, and the 0 DEG C impact toughness of the 12Cr13 material fastener forge piece is improved.

The invention discloses an end socket forge piece forming device and a demolding method, belongs to the technical field of end socket manufacturing, and solves the problem that an existing end socket forge piece is difficult to demold. The end socket forge piece forming device comprises a punch, a punch connecting frame and a transition connecting plate. The punch comprises a punch connecting part and a punch punching part fixedly arranged on the lower surface of the punch connecting part; the punch connecting frame is connected with the press movable cross beam, the upper end of the transition connecting plate is connected with the punch connecting frame, and the lower end of the transition connecting plate is connected with the punch connecting part; a second vertical pin hole is formed in the punch connecting part and located above the end socket forge piece. During punching, the movable cross beam of the press drives the punch connecting frame and further drives the punch to press down; and after punching is finished, the transition connecting plate is detached, the position of the second vertical pin moves downwards, the second vertical pin makes contact with the two ends of the end socket forge piece, pressure acts on the end socket forge piece, and demolding of the end socket forge piece and the punch is achieved. When the device is used for demolding, the demolding efficiency is high, and the demolding effect is good.

The utility model relates to the technical field of forging hammers, and discloses a forging hammer device which comprises an operation table, a sliding groove is formed in the front side of the top of the operation table, a sliding block is connected into the sliding groove in a sliding mode, a movable seat is fixedly connected to the top of the sliding block, and a mounting plate is fixedly connected to the top of the movable seat. A protection plate is fixedly connected to the interior of the mounting plate, a servo motor is fixedly connected to the front side of the mounting plate, the output end of the servo motor penetrates through the front side of the mounting plate and is fixedly connected with a rotating rod, and a C-shaped plate is fixedly connected to the rear end of the rotating rod. According to the device, the face of a worker can be prevented from being injured by sparks through the protection plate, the worker pushes the push rod to drive the forge piece to conduct position adjustment, meanwhile, the controller controls the servo motor to achieve rapid face turning treatment, and the buckle is pressed to drive the spring inside to conduct extrusion, so that the forge piece can be turned over rapidly. Therefore, quick replacement and installation of the hammer block are completed.

The invention discloses a novel quenching process of a 60CrMnMo material roller shaft, and relates to the field of quenching and tempering heat treatment of a 60CrMnMo mechanical forge piece, and the novel quenching process adopts an inorganic quenching medium polyalkylene glycol, PAG for short; the novel quenching process comprises the following steps: a preliminary temperature rise stage: heating a workpiece in a furnace, raising the temperature of the workpiece to 650 DEG C, and keeping the temperature; in the rapid heating stage, the workpiece is heated, the temperature of the workpiece is increased to 860 DEG C, and heat preservation is conducted; in the cooling stage, the temperature of the workpiece is reduced to 840 DEG C and kept; in the quenching stage, the workpiece is discharged for quenching; in the cooling stage, after quenching is completed, the workpiece is cooled to the room temperature; flaw detection; in the tempering stage, the workpiece is heated to 420 DEG C for the first time and subjected to heat preservation for the first time, and after the heat preservation time is over, the workpiece is heated to 590 DEG C for the second time and subjected to heat preservation for the second time; and discharging the workpiece and naturally air-cooling to room temperature.

The invention relates to the field of forge piece punching machines, and discloses a forge piece punching machine which comprises a base, two supporting plates, a top plate, a punching device, a material taking device, a heat dissipation device and a controller, the punching device is arranged below the top plate, the material taking device is arranged on the side of the punching device, the heat dissipation device is arranged on the side of the material taking device, and the controller is arranged on the base. Through the punching device and the material taking device which are arranged and interact with each other and are matched with each other, after punching operation is completed, a forge piece does not need to be manually taken down from a workbench and placed in a collecting box, operation is more accurate and safer, and then the situation that due to manual operation, production line pause is caused, and waiting time is prolonged is avoided.

The invention relates to the technical field of forging heat treatment, and discloses a forging quenching and tempering method based on intelligent temperature control. The method comprises the following steps: acquiring a real-time temperature time sequence and a temperature distribution characteristic during heat treatment of a forge piece, and executing multi-scale signal decomposition through an optimal signal decomposition primary function and a decomposition depth hierarchy to obtain a multi-scale temperature signal component; and calculating a complexity metric value of the decomposition coefficient to extract randomness characteristics, and screening out a key temperature region coefficient which is most relevant to the structure evolution of the forge piece. The optimal temperature control frequency parameter is determined by combining the material phase change baseline characteristic, the current heat treatment stage state and the randomness characteristic, a temperature field evolution characteristic sequence is reconstructed and is modally decomposed into a slow change component and an accelerated change component, accordingly, the hardening and tempering state type is recognized, a temperature control strategy library is matched to generate a control instruction, and accurate and efficient forging hardening and tempering treatment is achieved. The method solves the problem of lagging structure performance regulation in traditional heat treatment, and improves the stability and consistency of the comprehensive performance of the forge piece.

The invention relates to the technical field of forging forming, in particular to a stainless steel forge piece forging device which comprises a rack, a forging and pressing table is fixedly installed in the rack, a pressing end is installed over the forging and pressing table in a lifting mode, a pressing mold is installed on the forging and pressing table in a sliding mode, and a hydraulic rod is fixedly installed on one side of the pressing mold. The hydraulic rod is used for driving the pressing mold to slide; and a discharging groove is formed in the end, away from the hydraulic rod, of the forging and pressing table, a discharging assembly is arranged in the discharging groove and used for discharging materials machined in the pressing mold, cooling assemblies are fixedly installed on the two sides of the forging and pressing table, and the cooling assemblies are used for spraying cooling liquid into the pressing mold. According to the bolt raw material machining device, bolt raw materials can be rapidly taken out of the pressing die through the discharging port, manual intervention is reduced, and machining of the bolt raw materials is completed more rapidly and efficiently.

The invention belongs to the technical field of surface treatment, and discloses an acid pickling process for an alpha layer on the surface of a biphase titanium alloy forge piece, and the used acid pickling solution comprises 100-130 g / L of HNO3 with the concentration of 65-68%, 35-55 g / L of HF with the concentration of 40%, and the balance of water. The pickling solution with the proportion shows a stable rate of removing the alpha layer of the forge piece under the constant temperature condition of 20-50 DEG C, and the rate is about 0.01 mm / min. In order to ensure that no alpha layer residue exists on the surface of the forge piece and avoid excessive pickling, the thickness of the oxygen-enriched alpha layer on the surface of the forge piece is detected through a metallographic method, the thickness is increased by 0.03 mm-0. 08mm on the basis of the detected maximum value of the thickness of the alpha layer and set as the pickling amount, the pickling time is calculated according to the pickling rate, and the oxygen-enriched alpha layer on the surface of the double-phase titanium alloy forge piece is accurately removed. The process can be realized by only one pickling solution, the pickling time is determined according to the pickling amount, the imagination of incomplete pickling or excessive pickling is avoided, the production process is effectively simplified, and the period is shortened.

The invention relates to the technical field of high-strength aluminum alloy forge piece machining, and discloses stamping equipment for high-strength aluminum alloy cover plate production and a stamping method.The outer side face of an equipment outer base is connected with a center bearing table through a connecting arm, and a stamping support is installed at the front position of the upper end face of the center bearing table; the top of the stamping support is horizontally connected with an air cylinder seat, a stamping air cylinder is vertically installed in the middle of the air cylinder seat, an air cylinder rod is movably arranged in the stamping air cylinder in a downward extending mode, and a rigid pressure seat is welded to the lower end of the air cylinder rod. According to the stamping equipment for producing the high-strength aluminum alloy cover plate and the stamping method of the stamping equipment, by means of moving power of the positioning column, a pressing head of the positioning column generates extrusion acting force on the hydraulic column in the moving process, so that a plug seat pushes hydraulic oil in a hydraulic oil cavity, the hydraulic oil flows outwards from a unique oil hole, and the hydraulic oil is conveyed through a pipeline; and the hydraulic oil is upwards injected into the damping oil bag, so that the damping oil bag is transversely expanded after being filled.

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 discloses a method for reducing residual stress through low-load cold pressing of a large aluminum alloy whole frame, and the residual stress of a forged piece is reduced by pressing the forged piece subjected to heat treatment through a cold pressing die. The cold pressing die comprises an upper die and a lower die, the general shape of a cavity of the cold pressing die is consistent with that of the forge piece, on the basis of the forge piece, the height of the cavity of the die corresponding to a forge piece rib is reduced by 0.02 h-0. 05h (h is the height of the forge piece rib), the draft angle of the die is increased by 2-4 degrees, and the height of the cavity of the die corresponding to a forge piece web is increased by 0.02 h-0. 1h. In the whole cold pressing process of the forge piece, a cold pressing die is only in contact with the top of the forge piece rib and rib top convex fillets (R1 and R2), the die can wrap the top of the whole forge piece rib after cold pressing, the residual stress of the cross section of the large aluminum alloy whole frame after cold pressing is within + / -50 Mpa, and the load in the cold deformation process is always lower than the nominal pressure of a press.

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 aluminum alloy forging, in particular to a forging process capable of reducing reverse forging coarse grains of 6061 aluminum alloy, which comprises the following steps: acquiring a 6061 aluminum alloy ingot, homogenizing and annealing the 6061 aluminum alloy ingot at 480-520 DEG C for 12-16 hours, cooling to room temperature by water, performing ultrasonic flaw detection, performing turning surface treatment, and alternately forging and pressing in three directions, thereby obtaining the 6061 aluminum alloy. The method comprises the following steps: placing a fine-grain 6061 aluminum alloy forge piece in a graded heating furnace, completing sub-dynamic recrystallization, applying directional pressure stress of 50-80MPa to the 6061 aluminum alloy forge piece, analyzing grain boundary characteristic distribution by adopting an electron back scattering diffraction technology, and obtaining the grain boundary optimized 6061 aluminum alloy forge piece with a discontinuous coarse-grain structure through laser shock strengthening and stress relief annealing. According to the method, the problems that reverse forging coarse grains are caused by uneven strain distribution during forging and pressing, and fine grains and high-density nanoprecipitation cannot be effectively obtained and a grain boundary structure cannot be optimized due to the fact that follow-up forging, heat treatment and stress treatment parameters are difficult to accurately control can be solved.

The invention provides a ring forge piece production control system and method for wind power generation, and relates to the technical field of production control systems.The system comprises a sensing module used for collecting the thickness change rate, the forge piece temperature and the vibration acceleration of a ring forge piece in real time; the edge calculation module is used for receiving data collected by the sensing module, executing rolling force dynamic compensation calculation and outputting dynamic compensation force to the control execution module; a cloud optimization module; and a control execution module. The thickness change rate, the forging temperature and the vibration acceleration of the ring forging are collected in real time through the sensing module, then rolling force dynamic compensation calculation is conducted through the edge calculation module, real-time dynamic compensation of the rolling force is achieved, and the response time of dynamic disturbance during high-speed rolling can be effectively shortened from 30 ms to 8 ms.

The invention relates to a GH4093 high-temperature alloy forge piece and a manufacturing method thereof, and belongs to the technical field of metal processing. The manufacturing method comprises the following steps that vacuum induction smelting is conducted, a Ni-B alloy optimization refining process is adopted, and the purity and the component uniformity of molten steel are improved; vacuum consumable smelting is carried out, metal is further purified, the crystal structure is improved, and segregation is reduced; forging and cogging, and preparing a high-quality blank through upsetting, drawing and repeated remelting and heating; forging into a material, and forging a large-small-head structure forging blank by adopting an optimized process; and heat treatment is conducted, and through solid solution and aging treatment, the grain structure and the mechanical property are remarkably improved. The obtained forge piece comprises the following chemical components: 0.05%-0.08% of C, 18.0%-21.0% of Cr, 15.0%-21.0% of Co, 1.0%-2.0% of Al, 2.0%-3.0% of Ti, less than or equal to 0.02% of B and the balance of Ni and impurities. The manufacturing method is advanced in process and stable in product quality, the comprehensive performance and size precision of the manufactured forged piece are remarkably improved, and the requirements of aviation, nuclear energy and other high-end fields for high-temperature alloy forged pieces of complex structures are met.

The invention discloses a feeding device for forging blank sawing, and belongs to the field of feeding equipment.The feeding device comprises a conveying mechanism and a limiting mechanism, the conveying mechanism comprises a plurality of shear fork frames which are pivoted end to end, the upper portions of the shear fork frames are rotationally connected with rollers, the middles of the shear fork frames are provided with pivot shafts, and the lower portions of the shear fork frames are provided with lower connecting rods; the conveying mechanism further comprises a plurality of H-shaped supports, side pipes are arranged on the inner walls of the H-shaped supports, the two ends of the lower connecting rod are slidably installed in the kidney-shaped grooves, and trundles are arranged on the lower portions of the H-shaped supports. The limiting mechanism comprises two rows of limiting baffles which are symmetrically arranged. The conveying mechanism is designed to be of a telescopic structure, stable support is provided for the forge piece blanks, especially long-size forge piece blanks, and the problem that the forge piece blanks are warped and unstable during saw cutting is avoided; by arranging the limiting mechanism, the forge piece blank is prevented from generating transverse deviation in the conveying process, the labor intensity of operators for manually adjusting the angle of the blank is relieved, and the saw cutting operation efficiency is improved.

The invention provides a preparation method of a nickel-based high-temperature alloy steel ingot. According to the smelting process of the nickel-based superalloy GH625 large-size vacuum arc furnace steel ingot, the vacuum induction furnace (VIM) and the vacuum arc furnace (VAR) are adopted for duplex smelting to produce the GH625 superalloy large-size steel ingot, and the large-size steel ingot which is phi 810 mm, free of macrosegregation, shallow in shrinkage cavity and good in plasticity can be obtained. According to the method, a 12t vacuum induction furnace is adopted to smelt about 12t electrode bars, a 12t vacuum arc furnace is adopted to remelt a consumable ingot with the diameter of 810mm, and the high-temperature alloy consumable ingot with the diameter of about 12t is prepared. The smelting process of the high-temperature alloy large forge piece material is broken through, the problems that a large-size steel ingot needed by a large forge piece is prone to segregation, the pipe shrinkage depth is large and the like are solved, and the market competitiveness is improved.

The invention discloses a cylindrical forge piece machining device which comprises two supporting arms connected with a manipulator and a rotary supporting column, the two supporting arms are horizontally arranged in parallel, the rotary supporting column is horizontally arranged between the two supporting arms, a first cleaning mechanism is arranged on the supporting arms, and the first cleaning mechanism comprises an arc-shaped box body and a rotating part; the inner arc wall of the arc-shaped box body faces the side wall of the rotary supporting column, a plurality of nozzles are evenly distributed on the inner arc wall, a first connector used for being connected with a high-pressure airflow conveying pipe is arranged at the bottom of the arc-shaped box body, and the rotating part comprises a connecting frame, two arc-shaped guide rails, a first rack, a reset spring and a gear transmission assembly. According to the device, the function of automatically cleaning oxide skin generated in the forging forming process of the cylindrical forge piece can be achieved through the arranged first cleaning mechanism, the first cleaning mechanism is achieved through the arc-shaped box body and the rotating part, rotating blowing operation can be achieved, the surface area of the cylindrical forge piece is effectively covered, and the cleaning effect is improved.

The invention belongs to the field of hot working forming of metal materials, and particularly relates to a forming method of an asymmetric Y-shaped titanium alloy forge piece blank for aviation. By designing a special forming moulding bed and utilizing an eccentric pressing method, two asymmetric Y-shaped support arms with different lengths are forged, the main deformation process is realized by virtue of the moulding bed, the controllability of the production process is high, the dimensional precision is easy to guarantee, the process completion quality is high, the blank finish forging temperature can be effectively guaranteed, the material structure uniformity is improved, and meanwhile, the production cost is reduced. The streamline of the produced forge piece blank is distributed along the profile of the forge piece, the mechanical properties of the final forge piece in all directions are guaranteed, the forge piece waste rate is reduced, and the material utilization rate and the production efficiency are improved.

The invention provides a heat treatment method for a wind power gear forge piece. The heat treatment method comprises the following steps that 1, after-forging waste heat temperature equalization is carried out; 2, segmented forced controlled cooling is carried out till the forge piece reaches a furnace entering window, and forced cooling is carried out on the forge piece; at least three temperature measuring points are arranged on the forge piece; 3, isothermal normalizing for the first time, wherein the forge piece is placed in an isothermal furnace; 4, low-temperature reaustenitizing is conducted, specifically, the forge piece subjected to the first isothermal normalizing is heated to 860-910 DEG C, heat preservation is conducted, and the forge piece is reaustenitized; 5, secondary isothermal normalizing is conducted, specifically, the forged piece obtained after austenitizing is cooled to 645-670 DEG C in a controlled cooling mode, and isothermal heat preservation is conducted; the forge piece is heated to 380-450 DEG C, heat preservation is conducted, then the forge piece is cooled to 200 DEG C or below along with a furnace, and the forge piece is taken out of the furnace for air cooling. According to the method, a uniform and refined ferrite and pearlite structure is obtained in the core of the large-section forge piece, the hardness is stabilized within the range of 165-185 HBW, and the subsequent carburizing and quenching distortion sensitivity is reduced.

The invention discloses a manufacturing method of a GH4169 alloy turbine rear shaft forge piece and the turbine rear shaft forge piece. The method comprises the steps that the surface of a bar is polished; machining an annular material distribution belt on the side face of the bar in the circumferential direction to obtain a blank; performing primary soft sheathing on a second processing part of the blank, heating the blank, performing secondary soft sheathing on the heated blank, and performing heat preservation on the blank for a first preset duration; the first machining part of the blank subjected to heat preservation is drawn out; carrying out primary soft sheathing on the first processing part of the drawn blank, heating the blank, carrying out secondary soft sheathing on the heated blank, and carrying out heat preservation on the blank for a second preset duration; and the blank is subjected to die forging through the combined die, and the turbine rear shaft forged piece is obtained. According to the method, the first machining part of the blank is drawn out, the structure uniformity is improved, the structure grain size grade difference is reduced, the appearance of the forge piece is effectively adjusted by optimizing the design of the combined die, and therefore the usage amount of raw materials is reduced, and the production cost is reduced.

The utility model discloses a forging demoulding auxiliary device, and relates to the technical field of forging demoulding. The device comprises two vibration assemblies and a workbench, the number of the vibration assemblies is two, the two vibration assemblies are symmetrically arranged, the two vibration assemblies internally comprise the same parts, and each vibration assembly comprises a moving block. The vibration assembly is arranged, specifically, the arc-shaped blocks on the two sides get away from each other to drive the moving blocks to slide on the sliding rails, the moving blocks on the two sides extrude the springs on the two sides when getting away from each other, and the springs are extruded to generate opposite elastic force; the elastic force generated by the springs on the two sides pushes the moving blocks to get close to each other, so that the steel blocks are driven to make contact with the die, the knocking vibration effect is generated, when the die is in the vibration state, a gap is generated between a forge piece and the inner wall of the die, at the moment, workers take out the forge piece without damaging the forge piece, and the quality of finished products is guaranteed.

The utility model discloses a polishing device for an automobile steering gear yoke forge piece, which relates to the technical field of polishing devices and comprises a box body, clamping components are arranged on the left side and the right side of the upper surface of the box body, a medium barrel is arranged between the upper surface of the box body and the two clamping components, a polishing barrel is arranged in the medium barrel, and a partition plate is fixedly connected to the middle of the interior of the box body. A first motor is fixedly installed on the bottom face in the box body, the output end of the first motor penetrates through the bottom face of the partition plate and is fixedly connected with a rotating disc, at least four magnets are fixedly connected to the top face of the rotating disc, a cover closing assembly is arranged on the rear side of the upper surface of the box body, and a cooling fan is fixedly installed on the rear side wall of the box body. A plurality of heat dissipation grooves are formed in the left and right side walls of the box body. The polishing device has the advantages that the cover closing assembly enables the barrel cover to seal the polishing barrel, the polishing safety is improved, the clamping assembly clamps the medium barrel, the stability of the polishing barrel can be kept, and the continuity and consistency of polishing operation are ensured.

The utility model provides hot water boiler support forge piece polishing equipment, which relates to the technical field of forge piece polishing, and comprises a fixed base, the top of the fixed base is provided with a clamping and fixing assembly, the top of the fixed base is fixedly connected with a placing seat, and the placing seat is uniformly provided with three groups of sliding branch grooves; a bidirectional screw rod is rotatably mounted in the middle sliding supporting groove, and one end of the bidirectional screw rod penetrates through the placing seat and is fixedly connected with a rotating handle on the outer side, so that the forge piece can be conveniently clamped and fixed through the clamping and fixing assembly, adjustment can be conveniently carried out according to the size of the forge piece, and the application range of the grinding equipment is widened; the height of the grinding machine can be conveniently adjusted according to the height of the forge piece so as to grind the forge pieces with different heights, through the arrangement of the grinding assembly, the position of the grinding machine can be adjusted according to the length of the forge piece, the forge piece can be moved and ground at the same time, and the practicability of the grinding equipment is improved.

The invention discloses a 42CrMo forge piece quenching deformation calculation method, which comprises the following steps: based on three groups of cooling test results at different cooling rates, obtaining a change curve of a thermal expansion coefficient along with temperature, grinding, polishing and corroding a sample cooled at the three rates, observing a metallographic structure, and calculating the quenching deformation of a 42CrMo forge piece. Counting the volume fractions of ferrite, pearlite, bainite and martensite, and establishing a structure transformation model; and then, finite element software is used for inversely calculating phase change kinetic model parameters of the 42CrMo steel and thermal expansion coefficient curves of different tissues, so that the technical problem that phase change expansion cannot be predicted in the quenching deformation calculation process of the 42CrMo forge piece is solved, and the quenching deformation calculation precision of the forge piece is improved.

The utility model discloses an upsetting tool for forming a forge piece with a clamp handle, belongs to the technical field of forging, and aims to reduce upsetting leakage. Comprising a cylindrical drain disc body, a through hole penetrating in the axial direction of the drain disc body is formed in the center of the drain disc body, and the through hole is a stepped hole and comprises a cylindrical hole in the bottom, a taper hole with pattern draft in the middle and a ring surface table hole with draft in the top in the axial direction; the ring surface table hole is gradually contracted inwards from the top to the bottom in the axial direction; the diameter of the cylindrical hole is smaller than that of the bottom of the conical hole, and a transition plane is formed between the top end of the cylindrical hole and the bottom end of the conical hole. The through hole is arranged to be the stepped hole, the transition plane between the conical hole and the cylindrical hole serves as a table top to support the clamp handle, the clamp handle is prevented from being suspended, material leakage at the bottom of the clamp handle in the upsetting process is greatly reduced, even material leakage is avoided, the utilization rate of steel ingots is improved, and the purpose of saving materials is achieved.