9results about How to "Small tonnage" patented technology

The invention discloses a large blade die-roller composite forging process which is suitable for forging a large blade with the length larger than 1.5 m. A die forging and roller forging combined process is adopted for carrying out forging forming on a workpiece, and blank making and roller forging machining is carried out on a blank subjected to primary heating through a roller forging process. Then, a workpiece formed after blank making roll forging is subjected to local die forging through a die forging technology, and the workpiece obtained after local die forging is subjected to local forming machining through a forming roll; and the workpiece subjected to local forming is subjected to secondary heating, the workpiece subjected to secondary heating is subjected to local die forging through the die forging process, and then forming is conducted through the shape righting and trimming process. The forging force can be reduced to one third of that of an integral forging process; the tonnage of forging equipment is reduced, and the forging production cost of large blades is reduced.

The present application relates to B21D26, and particularly to a kind of anti-piling device for thickening material, including stretching station one, baffle and anti-piling station;Stretching station one, baffle and anti-piling station are sequentially arranged from left to right.The anti-piling device for thickening material provided by the present application has simple structure, small mold size, low mold cost, small equipment tonnage, and is convenient to use.The anti-piling station can be replaced according to the original thickness of the material piece and the thickening effect to be achieved, improving the utilization of the device;By adding the process of anti-piling between two times of stretching, the local thickening of the target part of the product is realized while the thickness of other parts of the product is not changed.The production efficiency and material utilization are high when the product is thickened.

The application discloses a semi-solid thixotropic die casting forming method of a narrow solid-liquid two-phase zone alloy, and comprises the following steps: step one: the narrow solid-liquid two-phase zone alloy is added into a heating device and heated to a superheating temperature, and after complete melting, the alloy is cooled for a certain time to obtain an alloy blank with a cast structure; step two: the alloy blank is added into an extrusion device to complete cold extrusion, and an alloy blank containing high-density dislocations and lattice distortion structures is obtained; step three: the alloy blank is heated for the first time, the heating temperature is set between a recrystallization temperature and a solidus temperature of the alloy, and isothermal heat treatment is carried out to obtain fine and uniform recrystallized grains; step four: the alloy blank is heated for the second time, the temperature is set above the solidus temperature of the narrow solid-liquid two-phase zone alloy, and isothermal heat treatment is carried out to obtain a semi-solid blank; and step five: the semi-solid blank is subjected to die casting forming. The application has the advantages that excellent castings with physical properties are formed.

The invention discloses integral disc shaft rolling forming equipment which comprises a clamping device, a rolling forming device, a rolling forming device, a rolling forming device and a rolling forming device, wherein the clamping device is clamped at the end of a prefabricated blank; the induction heating devices are arranged on the two sides of the periphery of the prefabricated blank; the rolling head moving device comprises a rolling head moving part, a rolling head rotating part and an angle adjusting part, the rolling head moving part comprises an axial moving part and a radial moving part, the rolling head rotating part and the angle adjusting part are assembled above the rolling head moving part, and the angle adjusting part is connected with the rolling head rotating part; a forming rolling head in the rolling head rotating component penetrates through the induction heating device to conduct rolling forming on the disc face part and the shaft rod part of the prefabricated blank, and an integral disc shaft piece with a specific spoke shape and a stepped shaft rod is formed. The problem that a high-quality forge piece which is complex in shape, close to the final product shape and small in machining allowance is difficult to efficiently manufacture through an existing integral disc shaft piece forging forming technology can be solved.

This invention discloses a device for removing excess material and flash from friction-welded intermediate parts, comprising: a machine body, including a first part and a second part for supporting and fixing both ends of a steel rail, with a guide rail fixedly disposed between the first part and the second part; a cutting assembly, fixedly disposed on the end of the guide rail facing the first part of the machine body, for cutting the excess material and flash of the intermediate parts after welding of a third friction body; and a pushing assembly, movably disposed on the end of the guide rail facing the second part of the machine body, for pushing away the excess material and flash of the intermediate parts after welding of a third friction body. This invention can automatically remove excess material and flash from friction-welded intermediate parts in one operation, improving the production process of third-body friction welding and increasing production efficiency. Simultaneously, by combining cutting and segmented pushing, the pushing force required for removing excess material and flash from low-temperature, large-section intermediate parts is reduced, effectively lowering the equipment tonnage.

The present application relates to a kind of nickel-based alloy cartridge manufacturing method, comprising orthogonal experiment steps: blank edge sampling, edge to center sampling;Sample heating and heat preservation, after solution detection sample grain size;Determine forging temperature;Sample cutting sample, sample is heated after upsetting according to different deformation amount, and test sample grain size;Determine forging deformation amount;Upsetting punching step: blank is heated to forging temperature, and is punched;Final forging temperature is: 950 DEG C;Air cooling to room temperature;Hole expansion forging step: blank is heated to forging temperature, and is expanded;Blank hole expansion deformation is forging deformation amount;Final forging temperature is: 950 DEG C;Air cooling to room temperature;Final rolling forging step: blank is heated to forging temperature, and is rolled;Blank rolling deformation is forging deformation amount;Final forging temperature is greater than or equal to 950 DEG C;Air cooling to room temperature to form product.Solve the problem in prior art scheme, selected forging temperature is lower, and it is easy to produce forging crack and forging deformation amount is smaller, and forging fire time is more.

The present invention discloses a wedge-type mold locking device, including a mounting frame, a fixed mold plate, a movable mold plate, a locking mechanism and a mold closing drive mechanism; the fixed mold plate is fixed to the front end of the mounting frame, the movable mold plate is slidably arranged in the middle of the mounting frame, and a receiving space is formed between the fixed mold plate and the movable mold plate; the locking mechanism includes a first driving device, a first inclined plate and a wedge plate, the first driving device is vertically fixed to the mounting frame, the first inclined plate is fixed to the side of the movable mold plate, and the top of the wedge plate is fixedly connected to the output shaft of the first driving device; the mold closing drive mechanism includes a second driving device, the output shaft of the second driving device is fixedly connected to the movable mold plate, and the output shaft of the second driving device and the wedge plate do not interfere with each other. The present invention also discloses a large-tonnage semi-solid metal die-casting machine. The wedge-type mold locking device of the present invention can provide a large-tonnage mold locking force, and has the advantages of stable operation, convenient operation, compact structure, small space occupation and low energy consumption.

This invention discloses a four-station precision forging process for pistons. The process involves open billet preparation, open reverse extrusion, open skirt forging, and closed precision forging to complete the precision forging of the piston. The material is rationally distributed through three open forging stages, culminating in the final precision forging. This four-station precision forging process produces forgings with high precision, no flash, and complete filling of the piston skirt without closed extrusion. It also features low forming force, effectively reducing equipment tonnage, enabling continuous forging, and improving the die life at each station.

The utility model relates to a two -segment formula foundry lower car body chassis structure and lower car body, wherein, a two -segment formula foundry lower car body chassis structure, including front cabin, rear floor and battery box body, the battery box body includes box body front half part and box body rear half part, one end of box body front half part is integrally formed in front cabin, one end of box body rear half part is integrally formed in rear floor, the other end of box body front half part and the other end of box body rear half part fixed connection. The utility model can relatively reduce the die -casting machine tonnage needed for die -casting processing, and can relatively reduce the welding position needed for chassis structure forming, guarantees chassis structure strength and light weight.