420 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 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 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 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 method for refining and homogenizing crystal grains of a 9%-12% Cr steel thick-wall large forge piece, and belongs to the field of ferrous metallurgy. According to the method, the large forge piece is heated to be close to the critical point of the complete austenitizing temperature in a stepped mode, the large forge piece is subjected to heat treatment by regulating and controlling dispersive precipitation of carbides in an initial structure and uniform nucleation of austenite and / or introducing a small amount of undissolved ferrite, residual precipitated phases and multi-phase interfaces and controlling the cooling speed; nucleation particles of pearlite transformation in the vibration heat preservation process are remarkably increased, uniform distribution of granular pearlite in the supercooled austenite is promoted, structural inheritance is cut off and eliminated, and the purpose of grain refining and homogenizing after performance heat treatment is achieved. According to the method, the grains of the thick-wall large forge piece are refined to 5 grades or above, the cross section grain size difference is within 2 grades, a series of problems that in the production process, grass waves exist in ultrasonic flaw detection, the grain size is unqualified, and the low-temperature impact toughness does not reach the standard can be solved, the product percent of pass and the production efficiency are remarkably improved, and meanwhile the production energy consumption is reduced.

The application discloses a preparation method of a GH4738 alloy ring forge piece with uniform grains, and comprises the following steps: step (1), sawing GH4738 bars and sampling to perform a gamma phase full solution temperature test; step (2), heating and heat preservation; step (3), upsetting and punching the bar blank to form a ring blank 1; step (4), heating and heat preservation; step (5), hole expanding of a mandrel and a mandrel holder to obtain a ring blank 2; step (6), heating and heat preservation; step (7), breaking to a ring blank 3; step (8), heating to a gamma phase solution temperature and heat preservation; and step (9), ring rolling of a plurality of heating and small deformation times to form a shaped ring blank 4, namely a forge piece. The method of high-temperature large deformation blanking, low-temperature small deformation pre-rolling and three times of heating at a gamma phase solution temperature and small deformation final rolling is adopted to produce the GH4738 special-shaped machine case ring forge piece, and the problems of forging cracking, non-uniform grain size, large mechanical property fluctuation, creep exceeding the standard, ultrasonic flaw detection exceeding the standard and deformation in a machining process of the GH4738 special-shaped machine case ring forge piece are solved.

The invention relates to the field of forging forming, in particular to a ring rolling process heating constant-temperature device and a heating method, and the device comprises a heating mechanism, a monitoring mechanism and a control mechanism; the heating mechanism comprises a power source, a transformer and a coil, the power source, the transformer and the coil are electrically connected in sequence, the coil is provided with a U-shaped heating area and used for being arranged near a main roller of the ring rolling machine, and one section, in the circumferential direction, of the annular forge piece is located in the U-shaped heating area. The monitoring mechanism comprises an infrared thermometer, and the infrared thermometer is used for monitoring the temperature of the annular forge piece; the control mechanism comprises a controller, and the infrared thermometer and the power source are electrically connected with the controller. Through cooperation of the controller, the infrared thermometer and the heating mechanism, the problem of local temperature drop of the ring piece in the machining process is effectively solved, the near-isothermal ring rolling technology can be achieved, the uniformity and consistency of the structure of the ring piece are remarkably improved, and the defects of coarse grains, cracking and the like are overcome.

The invention belongs to the technical field of forge piece forging devices, and particularly relates to a stainless steel forge piece forging device which comprises a base, a workbench is fixedly connected to the upper end of the base, a supporting frame is fixedly connected to one side of the upper end of the workbench, a supporting cylinder is fixedly connected to one end of the supporting frame, and a hammering block is slidably connected to an inner cavity of the lower end of the supporting cylinder. A rotating column is rotationally connected into the upper end of the workbench, a conical base is installed in the middle of the upper end of the rotating column, and a cleaning protection assembly is arranged at the upper end of the rotating column. The problems that an existing forging device is not provided with a protection mechanism, so that during forging, oxide skin on the surface of a stainless steel blank is partially splashed by a forging mechanism, and then the skin of an operator is scalded are solved; and the surface of the stainless steel blank is easily damaged by impurities such as silicate to generate hard spots and pits, so that the quality problems of later forging strength and the like are influenced.

The invention provides a nondestructive testing method and system for a coarse grain layer on the surface of an aluminum alloy forge piece, and relates to the technical field of nondestructive testing. First surface temperature field time sequence data corresponding to a standard workpiece are collected, and according to the environment temperature, the workpiece heat conductivity, the workpiece specific heat capacity and detection environment parameters, the first surface temperature field time sequence data are obtained; generating a thermal response difference threshold calibration curve corresponding to the standard workpiece; performing eddy current induction heating on the to-be-detected workpiece at the same heating time as the standard workpiece and the preset workpiece interval, and collecting second surface temperature field time sequence data corresponding to the to-be-detected workpiece; comparing the temperature of each moment in the second surface temperature field time sequence data with the temperature of the moment corresponding to the thermal response difference threshold value calibration curve, and if the temperature difference value between the second surface temperature field time sequence data and the thermal response difference threshold value calibration curve exceeds a preset temperature threshold value, determining that the thermal response difference threshold value calibration curve does not exceed the preset temperature threshold value; and if so, determining that the coarse grain layer exists on the surface of the to-be-detected workpiece or the depth of the coarse grain layer on the surface of the to-be-detected workpiece exceeds the limit. According to the invention, the nondestructive detection precision of the metal workpiece can be improved.

The invention discloses a rolling ring station adjusting and measuring device and method for a wind power flange, and relates to the technical field of forge piece production, and the technical scheme is characterized in that a positioning assembly arranged on a supporting seat is used for carrying out center positioning and self-locking on a flange rolling ring according to the self-gravity of the flange rolling ring, and comprises a placement compression structure arranged on the supporting seat; a plurality of groups of movable positioning structures are arranged on the circumference of the placement compression structure; the three-position measuring assembly is arranged at the lower end of the telescopic device, is used for measuring the outer diameter, the inner diameter and the depth of a flange rolling ring and comprises an outer ring probe, an inner ring probe and a depth probe which are used for moving and surveying according to the center position of a flange, and the three-position measuring assembly is further provided with a stabilizing component used for stabilizing positioning of a flange forge piece. The device has the effects that the automatic operation of placing and positioning is realized, so that the adjusting and testing auxiliary time is greatly shortened, the production efficiency is improved, the manual intervention is reduced, and the operation safety of heavy workpieces is guaranteed.

The invention relates to a control method for increasing the boron content in a forge piece through double-vacuum smelting of 2.25 Cr1Mo0.25 V steel, belongs to the technical field of smelting, and solves at least one of the problems that in an existing 2.25 Cr1Mo0.25 V steel smelting process, the boron content cannot reach the effective effect content, the boron content fluctuation between heat times is large, and an existing boron control process is incompatible with a 2.25 Cr1Mo0.25 V steel double-vacuum process. A control method for improving the boron content in a forge piece through double vacuum smelting of 2.25 Cr1Mo0.25 V steel comprises the steps that vacuum carbon deoxidation refining is conducted, specifically, slagging, diffusion deoxidation, alloying, vacuum treatment, component fine adjustment and soft blowing are conducted on molten steel, and key element adding is conducted; and the vacuum casting comprises preparation before casting and vacuum casting protection. According to the method, the effective boron content is increased, the boron content fluctuation among the heats is reduced, and the process compatibility is good.

The invention relates to the technical field of forging, in particular to a step-by-step vertical forging forming method for a GH4169 alloy low-pressure turbine shaft part. A forge piece is designed according to the shape of the turbine shaft; the forge piece comprises a rod part and a head part which are coaxially arranged, the rod part and the head part 2 are connected through a transition area, and the diameter of the head part is larger than that of the rod part. Initial bar specifications are determined according to the rod part and the head part, and blanking is conducted; drawing out and forming the rod part; locally heating the head; and vertically upsetting the head. According to the method, the step-by-step forming process of drawing out the rod part through one time of heating and upsetting the head part through two times of heating is adopted, so that the heating number is effectively controlled, the repeated heating times are reduced, the production efficiency is improved, the consistency of overall deformation of the forge piece can be kept, and the problems of coarse grains and uneven structures caused by multiple times of heating are solved.

The invention relates to the field of forge piece forming, in particular to a forge piece forming machining device which solves the problems that an existing forge piece forming machining device only has a forging function, workpieces cannot be turned over and rotated automatically, and meanwhile, the workpieces of different shapes cannot be flexibly switched and machined conveniently. The device comprises a base, a machining table, a square groove, a sliding way, a sliding rod frame, a sliding seat, a first telescopic piece, a mounting frame, a supporting seat, an electric rolling wheel, a clamping seat, a first rotating plate, a support, a ring forming assembly, a third telescopic piece, a top plate, a supporting cylinder, an ejector rod, a linkage assembly and a driving cavity, stepped holes are formed in the driving cavity and the upper end face of the machining table in a penetrating mode, and a rotating assembly is arranged in the driving cavity; and the rotating assembly is used for rotating the rectangular workpiece. According to the device, water surface angle adjustment and turn-over can be automatically conducted on workpieces of various different shapes, annular workpieces can be machined, universality and functionality are improved, and use is stable and reliable.

The utility model relates to the technical field of forging processing, in particular to an inner wall dephosphorization device suitable for a forging workpiece with a deep hole, which comprises a foundation, an inner wall dephosphorization machine and a robot, the inner wall dephosphorization machine is arranged in a pit part of the foundation, and the robot is positioned on a table top of the foundation and is higher than the inner wall dephosphorization machine. The inner wall dephosphorization machine comprises a water tank and a quick electromagnetic valve located on one side of the water tank. The inner wall dephosphorization equipment suitable for the forged workpiece with the deep hole is provided for meeting the dephosphorization requirement of the forged workpiece with the deep hole, the equipment combines the technological process of the forged workpiece with the deep hole and a forge piece transferring method, the forge piece is clamped by the mechanical arm and the clamping jaw to complete the dephosphorization operation of the deep hole, and the working efficiency is improved. The special nozzle sprays high-pressure water columns for dephosphorization operation, the speed is high, the dephosphorization effect is good, and equipment parameters can be conveniently and flexibly adjusted according to process requirements.

The invention relates to a heat treatment process for EN26 shaft products, which combines the multi-step and large-section size shape of an EN26 shaft, takes the large step at the tail end as a symmetric base point before heat treatment, is designed according to the double-length size, and adopts the modes of low-temperature preheating, high-temperature normalizing, air cooling after normalizing and tempering after forging to effectively cut off the structure inheritance. The method solves the problem of mixed crystal or coarse crystal grains caused by non-equilibrium structures due to weaving inheritance, promotes pearlite with small interlamellar spacing to be converted into austenite structures through a rapid heating and repeated austenitizing mode, improves the nucleation rate so as to achieve the effect of refining the grain size, and improves the grain size through reasonable quenching cooling strength. According to the method, the structural transformation from high-temperature austenite to martensite is guaranteed, the risk of product cracking caused by overlarge thermal stress and structural stress is avoided, the overall stability of a forge piece is guaranteed through high-temperature tempering, the strength, plasticity, toughness and hardness are well matched, the overall quality and production efficiency of the EN26 shaft produced through the method are improved, and the production cost is reduced. And after finish machining, single-length sawing and delivery are carried out.

The invention discloses a forging and quenching integrated forming process for an aluminum alloy die forging, and relates to the technical field of aluminum alloy machining, the forging and quenching integrated forming process integrates independent forging heating and quenching heating links into single gradient preheating and die real-time temperature control through the forging and quenching integrated forming technology, and energy waste caused by secondary heating after forging is thoroughly abandoned. In the step S100, the solid solution temperature interval of 500-520 DEG C of a blank core is controlled through induction heating, the temperature of the surface layer is lower than that of the core to form a thermal gradient, high plasticity of core metal is guaranteed, surface layer oxidation loss is reduced, in the step S300, the cooling rate is accurately controlled through the 120-300 DEG C temperature difference design of an upper die and a lower die of a die and the adhesion characteristic of a forge piece in the demolding process, and the temperature difference of the upper die and the lower die of the die is reduced. Demolding damage and subsequent correction procedures caused by mold sticking are avoided, a top-speed quenching transfer technology smaller than or equal to 5 s in the step S400 is matched, the economical efficiency of large-scale production is remarkably improved, and the method is particularly suitable for large-scale mass production scenes.

The invention belongs to the technical field of forge piece heat treatment, and relates to a heat treatment method for stable control over the structure performance of Ti55531 titanium alloy. The method comprises the steps that the furnace temperature is increased to T beta-30-60 DEG C, after the temperature is reached, a forged piece obtained after rough machining is loaded into an effective area of a hearth, when the furnace temperature is recovered and stabilized to T beta-30-60 DEG C, the heat preservation time starts to be calculated, and the heat preservation time is calculated according to the sum of through heating time and solid solution heat preservation time; when the heat preservation time of the forge piece reaches the set solid solution heat preservation time, the solid solution procedure is completed, and the forge piece is discharged out of the furnace and air-cooled until the forge piece is thoroughly cooled to the room temperature; the furnace temperature is increased to 600-630 DEG C, the forge piece is loaded into an effective area of a hearth when the temperature is reached, and when the furnace temperature is recovered and stabilized to the set temperature of 600-630 DEG C, aging heat preservation is conducted; and when the heat preservation time of the forge piece reaches the set time, finishing the aging process, and discharging for air cooling to finish the heat treatment process.

The invention discloses a high-temperature alloy high-pressure compressor casing forge piece special-shaped rolling method which comprises the following steps: S1, carrying out pretreatment on an original high-temperature alloy blank, including blanking and chamfering; s2, the blank obtained after broaching is subjected to two times of pre-rolling, and the pre-rolling deformation is controlled to range from 13% to 18%; s3, the pre-rolled ring blank is put into a tire mold cavity for staged forging forming; and S4, carrying out heat treatment on the forge piece subjected to loose tooling forging forming to obtain a target forge piece. According to the method, the problem of local filling defects can be solved without shaping after forming die forging and without increasing the outer diameter allowance.

The invention discloses a pole piece roller forge piece and a preparation method thereof, and relates to the technical field of equipment manufacturing, and the pole piece roller forge piece comprises the following chemical components in percentage by mass: 0.75-1.05% of C; 1.0 to 2.5 parts of Si; 0.3 to 1.0 part of Mn; p: less than or equal to 0.015; s: less than or equal to 0.010; 1.0 to 2.0 parts of Cr; 0.01 to 0.1 part of Nb; v: 0.05 to 0.25 part; mo: less than or equal to 0.2; ni + Cu: less than or equal to 0.6; n is greater than or equal to 200 ppm, and the balance is Fe and inevitable impurities. By optimizing chemical components (for example, the use of precious alloy elements such as Cr and Mo is reduced, and the content of Si is increased), the material cost is remarkably reduced while the performance is guaranteed. Meanwhile, elements such as Nb, V and N are added to form tiny carbonitride, the effects of composite microalloying and grain refining can be achieved, then the high-temperature hardness maintaining capacity of the material is remarkably improved, and the problems that in the prior art, under the high-temperature working condition, the hardness is poor, the material cost is high, the structure uniformity and performance stability are poor, and the high-temperature hardness attenuation is large are solved.

The utility model discloses a flange valve body forge piece manufacturing device which comprises an upper shell, side hydraulic telescopic rods are fixedly connected to the left inner wall and the right inner wall of the upper shell, a die is fixedly connected to the ends, away from the left inner wall and the right inner wall of the upper shell, of the side hydraulic telescopic rods, and an upper hydraulic telescopic column is fixedly connected to the upper top wall of the upper shell. The lower surface of the upper shell is fixedly connected with a lower shell, the lower bottom wall of the lower shell is fixedly connected with a lower hydraulic telescopic column, the end, away from the lower bottom wall of the lower shell, of the lower hydraulic telescopic column is fixedly connected with a supporting shell, and the lower bottom wall of the supporting shell is fixedly connected with a motor. And the output end of the motor is fixedly connected with a rotating shaft, and the end, away from the motor, of the rotating shaft is fixedly connected with a center column.

The utility model relates to the field of trimming die, concretely relates to a forge trimming die, including lower mould, the top fixedly connected with the guide rod and punch of lower mould, upper die, the outer wall sliding connection of guide rod in upper die, the bottom fixedly connected with trimming cutter of upper die, deslagging mechanism, the deslagging mechanism includes the limiting frame, the limiting frame fixedly connected in the outer wall of punch, the limiting frame inner wall has seted up trimming groove, the left and right sides of limiting frame have seted up mouth of knife groove, the inner wall of limiting frame has articulated the turning plate, the side wall of turning plate is provided with the blanking mechanism, the left side outer wall of turning plate is fixedly connected with the crosspiece. Through the design of deslagging mechanism, can automatically clean the flash after cutting, avoid the flash to remain in the vicinity of punch, influence the subsequent processing, thereby need not again manually pick up the flash, effectively shorten the single processing time, and further improve the production efficiency.

The invention relates to the related technical field of automobile forge piece production, in particular to automobile forge piece punch forming equipment and a forming method.The automobile forge piece punch forming equipment comprises a feeding device, a punching device and a discharging device, the punching device comprises a machining table, a supporting frame is fixedly installed on the machining table, and an upper die mechanism is arranged on the supporting frame; a lower die matched with the upper die mechanism is arranged on the machining table. A demolding mechanism is arranged on the machining table. The blowing mechanism is arranged at the side end of the lower die and is connected with the movable driving piece; the demolding and cleaning work can be controlled to be carried out synchronously through driving of the movable driving piece, and when an auxiliary workpiece is separated from the lower mold, when an air outlet of the cleaning mechanism deflects and is aligned with the lower mold, air generated by the air blower under driving of the driving mechanism is conveyed to the cleaning mechanism; when waste materials and aluminum skimmings in the lower die are effectively removed, interference between the upper die mechanism and the sweeping mechanism is avoided.

The utility model discloses a forge piece guide pin and relates to the field of forge piece guide pins, the forge piece guide pin comprises a tail forge piece and a head forge piece, inserting holes are formed in the circumference of the inner wall of the tail forge piece at equal intervals, and connecting holes are formed in the circumference of the inner wall of the head forge piece at equal intervals in a penetrating mode; after the head forge piece and the tail forge piece are assembled and the positioning pin rod is inserted into the inner diameter of the head forge piece, the conical section at the bottom can extrude the plurality of groups of spherical blocks, so that the penetrating inserting rod can penetrate through the connecting hole and extend into the inserting hole in the inner diameter of the tail forge piece; after the second fastening thread of the upper section of the positioning pin rod is fastened with the second matching thread of the head forging, the positioning pin rod and the head forging form fastening connection, so that the lower section part of the head forging and the tail forging can form dense stress points through a plurality of groups of penetrating insertion rods; therefore, connection stress points of the tail forge piece and the head forge piece are increased, stress points except upper thread fastening points are increased, and connection is more stable.

The invention relates to the field of bearing steel forging, in particular to a construction method and application of a material model for predicting structural evolution of 100CrMo7-3 bearing steel in the forging process, and the model comprises an austenite grain growth model, a thermal deformation constitutive equation, an austenite dynamic recrystallization integral number model and an austenite dynamic recrystallization grain size model. By establishing the model, the whole chain prediction evolved from a microstructure to a macroscopic forging load is realized for the first time. By adopting the model, a process window can be locked only through single simulation, the grain size of the core of the forge piece is successfully compressed to be below an industry critical value, and compared with a traditional method, the forging load prediction precision is improved in a leap-over mode.

The invention belongs to the technical field of bridge engineering support components, and particularly relates to a low-alloy high-strength steel integrated forging process, a support lower plate and a forging process. Forging heating is conducted, specifically, the steel billet is subjected to stepped heating to reach the forging temperature; multi-heating-number forging forming is conducted, specifically, drawing deformation, upsetting deformation and finishing forming are sequentially conducted on the heated steel billet at the forging temperature, a die matched with the target shape of the lower plate of the support is used for finishing forming, a target forge piece is forged and formed, and the overall forging ratio is not lower than 4.0; cooling after forging: carrying out gradient cooling treatment on a forged piece formed by forging; and final heat treatment is conducted, specifically, normalizing treatment and tempering treatment are conducted on the cooled forge piece. According to the method, overall weldless forming can be achieved, the compactness and mechanical property are improved, the fatigue life is prolonged, and the machining allowance and production cost are reduced.

The application provides a wind power flange rolling ring adjusting device and a rolling ring method thereof, and relates to the field of wind power flange processing. The device comprises a bottom plate, a central shaft located at the center of the bottom plate, a rolling mechanism located above the bottom plate, and a limiting mechanism located at the four sides of the bottom plate. The central shaft is rotationally installed on the bottom plate, and four groups of extrusion shafts are arranged in an annular array on the outer wall of the central shaft. The four groups of extrusion shafts can slowly expand outward, and the central shaft is driven to rotate by a power source. Thus, the extrusion shafts rotate along the inner wall of the flange forge piece, uniformly expanding the hole from the inside. Meanwhile, the outer wall of the flange forge piece is provided with limiting shafts, and the limiting shafts rotate along the outer wall of the flange forge piece with the central shaft. Through the extrusion of elastic members, radial extrusion is formed between the extrusion shafts and the limiting shafts. The rotation of the extrusion shafts and the limiting shafts ensures the uniformity of the deformation in the circumferential direction of the flange forge piece.

The utility model relates to a heat treatment device for a 12Cr2Mo1 steel large annular forge piece. The heat treatment device comprises a treatment box, an L-shaped frame is rotationally arranged at the top of the treatment box, a movable pipe is rotationally arranged on the surface of the L-shaped frame, the bottom end of the movable pipe is fixedly connected with a flow dividing disc, and a plurality of first spray heads are fixedly installed on the lower surface of the flow dividing disc; and the inner bottom wall of the treatment box is fixedly connected with a flow guide column. The shunting disc is arranged at the top of the treatment box, and the first spray heads on the surface of the shunting disc and the second spray heads on the surface of the flow guide column in the treatment box can be used for spraying water to cool the inside and outside of an annular casting, so that the quenching effect on the annular forging is realized; and heated water during quenching can be rapidly discharged outwards through a hot water discharging pipe, meanwhile, cooling water is conveyed to a flow guide column and a flow dividing disc through a cooling water pipe, continuous cooling water supply to the interior of the treatment box is achieved, and the quenching efficiency is improved.

The utility model discloses a high -speed numerical control forge piece sawing machine, including organism, the middle part of organism upper end is provided with the rest platform, and the front side of rest platform upper end is equipped with saw blade, still includes fixed establishment, fixed establishment: it includes connecting plate, stand, adjusting rack plate, adjusting gear and gear, the left and right sides of stand are rotatively connected in rest platform bottom wall respectively, and the upper and lower sides of stand outer arc surface are provided with adjusting gear and gear respectively, and the left and right sides in rest platform inside are equipped with connecting plate respectively, and the one end of connecting plate near the inside center of organism all is provided with adjusting rack plate, and adjusting rack plate is connected with the meshing of adjusting gear adjacent in longitudinal direction respectively, is set up through the cooperation of adjusting rack plate and adjusting gear, this high -speed numerical control forge piece sawing machine can provide a stable clamping force, has improved the fixed effect to steel forge piece, has guaranteed the cutting quality to steel forge piece.

The invention discloses a metal casting particle ceramic grinding ball / grinding forging for a ball mill and a manufacturing method of the metal casting particle ceramic grinding ball / grinding forging, and belongs to the technical field of grinding equipment. The grinding ball / grinding forging comprises a wear-resistant metal matrix (1) and a particle ceramic polymer (2) wrapping the wear-resistant metal matrix (1). The particle ceramic polymer (2) is formed by mixing particle ceramic, a high-temperature adhesive and iron alloy powder and reinforcing the mixture with a built-in steel wire (22). During manufacturing, the particle ceramic polymer shell with a certain thickness and pores is prepared by using an EPS foam mold, then the particle ceramic polymer shell is placed in a casting mold, high-temperature molten metal is poured into the casting mold, and the high-temperature molten metal permeates into the pores of the particle ceramic polymer shell by using a casting infiltration principle to form a firm metal-based ceramic composite structure. The high-strength, high-toughness and impact-resistant metal matrix and the high-hardness particle ceramic layer are combined, low abrasion, low ball breaking rate and high abrasion resistance are achieved at the same time, the process is simple, the cost is low, and the method is suitable for large-scale production.

The utility model relates to a forge piece clamping mechanism suitable for forging machining, which comprises a mounting seat and a U-shaped frame mounted at the top of the mounting seat, and further comprises a lifting mechanism mounted on the U-shaped frame; the rotating mechanism is mounted at the lifting end of the lifting mechanism; the assembling seat is mounted at the rotating end of the rotating mechanism, and a mounting frame is further mounted at the top of the assembling seat; and the two sets of clamping arms are symmetrically arranged, the clamping arms are rotationally connected to the mounting frame, the clamping arms comprise the first clamping arms rotationally connected to the mounting frame, the ends, away from the mounting frame, of the first clamping arms are rotationally connected with the second clamping arms, and mounting plates are fixedly connected to the outer side walls of the first clamping arms and the outer side walls of the second clamping arms correspondingly. The special-shaped workpiece can be stably clamped, and the auxiliary cooling function in the clamping process can be achieved.