31results about How to "Guarantee forging quality" patented technology

A 6D parallelly connected forge machine is composed of 6 linear drive systems fixed to upper platform, and the join mechanism between linear drive systems and platform. Each linear drive system has a vertical column as its guide track and can drive a jointer connected to one end of a connecting rod via a primary spherical hinge. Another end of said connecting rod is connected to the platform via primary spherical hinge. A gripper for grasping the work-piece to be forged is installed to the platform.

The double-ball joint telescopic six-dimensional parallel forging operation machine consists of six identical fixed ball joints, six identical hydraulic cylinders, six identical dynamic ball joints, one claw beam platform, one clamp, one upper platform, and six sets of identical uprights. The six sets of identical uprights are configured symmetrically on the large walking chassis, and each of the upright set is connected to one hydraulic cylinder via one fixed ball joint, the hydraulic cylinder is then connected via one dynamic ball joint to the claw beam platform, these six dynamic ball joints are configured symmetrically on the large walking chassis in the mode corresponding to that of the six upright sets, and the clamp for grasping forging is mounted onto the claw beam platform. The present invention utilizes six hydraulic cylinders for great tonnage operation force and six operation motion, and realizes the multiple bearing operation of large forging at low cost.

The invention relates to a heavy-duty isothermal forging hydraulic press, which comprises an upper transverse beam, a lower transverse beam, upright posts, a main cylinder, side cylinders and a slide block, wherein an upper baseplate is fixed on the lower plane of the slide block; and a movable workbench is arranged on the lower transverse beam. The heavy-duty isothermal forging hydraulic press is characterized in that the upper transverse beam and the lower transverse beam form a combined beam body structure; leveling cylinders are fixed on the four corners of the upper end of the upper transverse beam and the upper end of the lower transverse beam; each leveling cylinder is provided with an independent leveling control system; an upper knock-out device is arranged on the slide block; movable workbench positioning mechanisms are arranged on the lower part of the movable workbench body and in the lower transverse beam; and the movable workbench body is further provided with a movable workbench clamping device. The heavy-duty isothermal forging hydraulic press is characterized in that a combined transverse beam is light in weight and is convenient to transport and produce, and the manufacturing cost can be reduced; a leveling effect is achieved via the leveling cylinders, the leveling response time is shortened, and energy is saved greatly; through the upper knock-out device, successful demolding of workpieces can be realized, and the workpiece forging and pressing quality is ensured; and accurate positioning and stable running of a press workbench can be realized, and the production requirement of forging equipment for heavy-duty aviation forgings is met.

The invention relates to high-synchronicity forging equipment. The equipment comprises three hammer units which are distributed in a T shape and arranged in a manner that the heads of the hammer units face the center and a driving device which drives the hammer units to move towards the center or the outer portion. The equipment is characterized by further comprising a transmission device for connecting the driving device with the hammer units; the transmission device comprises two gears which are coaxially integrated; and one of the two gears is at least in transmission fit with a rack, and the other one of the two gears is at least in transmission fit with two racks; and the racks are correspondingly connected with the hammer units. According to the forging equipment, the three hammer units which are distributed in the T shape can be matched with a fixed hammer unit for beating forging, and the gears and the racks are transmitted in a matched manner; and due to the fact that the two gears are coaxially integrated, the racks can be driven to synchronously move, and it is guaranteed that the hammer units synchronously carry out hammering and retreating; and the equipment is simple in structure and high in synchronicity.

The invention provides a mounting structure for a forging die, and aims to solve the problem that the forging die cannot be mounted and locked reliably as the forging die is directly mounted on a conventional die seat serving as a mounting structure through a wedge iron locking mechanism. The mounting structure comprises a die seat and the forging die, wherein the die seat comprises an upper die seat and a lower die seat; the forging die comprises an upper die and a lower die; the mounting structure is characterized in that the upper die and the lower die are mounted in the upper die seat and the lower die seat respectively through an upper die sleeve and a lower die sleeve; the upper die and the upper die sleeve as well as the lower die and the lower die sleeve are respectively in clearance fit; locking of the upper die and the lower die is realized between the upper die and the upper die sleeve as well as between the lower die and the lower die sleeve respectively through hanging pin structures.

The invention discloses a technology for forging heavy steel ingots into plates. The technology includes the steps of heating the ton-grade steel ingots in a heating furnace for 14-16 hours with the temperature preserved; carrying out rough forging and returning the steel ingots in the heating furnace for heating after rough forging is completed; forging and drawing plate blanks and returning the steel ingots in the heating furnace for heating; forging and drawing the plate blanks again to meet the requirements of technological sizes and flattening surfaces, wherein the finish forging temperature is 840 DEG C; and placing forged plates into a thermal treatment furnace, heating the plates to 980 DEG C, carrying out normalization after the temperature is preserved for a period of appropriate time, cooling the plates in air, then placing work-pieces into the furnace, heating the work-pieces to 740 DEG C and carrying out air cooling after heat preserving and tempering. The technology has the beneficial effects that deformation of the steel ingots is easy, metal flowing is fast, high temperature diffusion is added in the heating process for removing intragranular segregation and intragranular micro-cracks, the forging quality of the steel ingots is guaranteed, and the grain sizes of the forged plates are uniform.

The invention discloses a material returning device for forging and heating of automobile half shafts, and belongs to the field of automobile half shaft machining equipment. The material returning device includes a machine frame, a driving mechanism, a transmitting mechanism, a connecting mechanism, and a clutch mechanism; a fixed beam and a mounting beam are arranged at the upper end of the machine frame, and the mounting beam is located on the front side of the fixed beam and parallel to the fixed beam; and the driving mechanism, the transmitting mechanism, the connecting mechanism, and theclutch mechanism are arranged on the machine frame, and a switching device and a time control device are further arranged on the machine frame. The material returning device controls each automobile half shaft individually, avoids the phenomenon of burnout or overheating, and ensures the forging quality; and meanwhile, the switching device and the time control device can ensure the fact that the heating time of the automobile half shafts is the same, the same heating temperature is achieved, and the product quality is further ensured.

The invention provides a method for heating a large sheet arc-shaped forge piece before forging. The method comprises the following steps that A, a plurality of parallel sizing blocks are arranged ona universal charging tray, and the heights of the sizing blocks are gradually reduced from two ends to the middle; B, the forge piece is placed on sizing blocks, the forge piece makes contact with thesizing blocks located at the two ends, and gaps exist between other sizing blocks and the forge piece; C, the forge piece is heated to initial forging temperature. The plurality of sizing blocks withdifferent heights are arranged on the charging tray. When a plate is heated to be softened and deformed under the action of gravity, the sizing blocks can support the plate. The deformation amount can be controlled within a certain range, and the plate is prevented from generating large deformation. The shape of the heated plate can be matched with a mold, and therefore the plate can be quickly transferred into the mold and positioned. Thus, the efficiency is improved, the initial forging temperature is prevented from being too low, and the forging quality is guaranteed.

The invention relates to a farm mechanical shaft forge piece which comprises a transmission shaft and a flange, wherein the flange is located at the left end, and the flange and the transmission shaft are integrally forged. The outer diameter of the transmission shaft is increased from the right end to the left end, and the total length d of the transmission shaft and the flange is 460-470 mm; the thickness d1 of the flange is 35-40 mm, and the outer diameter D of the right end of the transmission shaft is 75-80 mm; the outer diameter D1 of the flange is 250-255 mm, and the right end face of the transmission shaft is provided with a boss with the diameter smaller than that of the transmission shaft and the thickness being 9-11 mm; and the peripheral wall of the left end of the transmission shaft is connected with the middle of the flange through a curve face with the size being gradually increased. The farm mechanical shaft forge piece is reasonable in structural design, by adoption of one-time forge-forming and structure optimization of the joint, the mechanical performance of the overall mechanical shaft is improved, and the service lift is prolonged.

The invention discloses a forming method for improving the structure property of a QAl10-4-4 aluminum bronze alloy cast ingot. According to the technical scheme, a sawn QAl10-4-4 aluminum bronze alloybar is heated to a preset high-temperature interval, heat preservation is conducted, and then cast ingot cogging forging is conducted; a blank obtained after ingot casting cogging is heated to a preset medium-temperature interval, heat preservation is conducted, and then intermediate procedure forging is conducted; a blank obtained after intermediate procedure forging is heated to the preset medium-temperature interval, heat preservation is conducted, and then final forging forming is conducted; and a blank which is finally forged and formed is annealed according to a preset temperature, andafter discharging and air-cooling, a finished product forging is obtained. According to the method, a forging with fine grains, uniform structure, high flaw detection level and good comprehensive performance can be obtained.

The invention discloses a four-step forging forming process for an automobile hub axle tube, and relates to the technical field of forging forming. The four-step forging forming process for the automobile hub axle tube comprises the following steps: S1, raw material pretreatment: selecting a bar with proper length, placing the bar in a heating furnace body for heating, controlling the heating temperature between 350 DEG C and 450 DEG C, and carrying out subsequent primary forging and precision forging; a bar can be cut and ground and then is heated through the heating furnace body, the heated bar is taken out of the heating furnace and placed in the pre-forging die through the transfer device, the bar is subjected to primary forging and forming through hydraulic forging equipment, and precision forging operation is carried out after impurities are removed. The anti-oxidation treatment is carried out on the hub axle tube after the hub axle tube is formed, the forging forming quality of a workpiece is guaranteed, and meanwhile through spraying of the anti-oxidation layer, the anti-oxidation performance of the hub axle tube is improved.

The invention discloses an anti-crack manufacturing method for duplex stainless steel F53 forging forming. The anti-crack manufacturing method comprises the following steps of (1) putting a steel ingot into a heating furnace, charging the steel ingot into the furnace to avoid direct flame injection, heating the steel ingot along with the furnace to be less than 60 DEG C/h, and keeping the temperature for 4 hours when the temperature reaches 300-350 DEG C; (2) heating the steel ingot with the temperature of 300-350 DEG C to 1020-1050 DEG C at the speed of 100 DEG C/h, and keeping the temperature for 20 hours; (3) heating the steel ingot with the temperature of 1020-1050 DEG C to 1200 DEG C at the speed of 70-100 DEG C/h, and keeping the temperature for 20 hours; (4) taking out the steel ingot obtained in the step (3) and placing the steel ingot in a forging machine for forging; (5) if cracks appear on the outer surface in the forging and pressing process, immediately removing the cracksby gas cutting in a hot state; and (6) placing a blank forge piece forged to the size into the heating furnace to be continuously heated to 1070 DEG C, conducting solid solution after heat preservation is carried out for 3 h, and enabling the water temperature of solid solution to be larger than 40 DEG C. According to the anti-crack manufacturing method, the forging efficiency and quality are improved, product surface cracks are prevented, energy consumption is reduced, and the cost is reduced.