53results about How to "Reduce the amount of subsequent processing" patented technology

The invention discloses a device and method for rapidly forming a metal part through induction heating. The device comprises a base plate, a front heating unit and an induction smelting unit. The base plate is located below the induction smelting unit and used as a platform for metal part forming. The front heating unit is located between the base plate and the induction smelting unit and used for forming a uniform temperature field. The induction smelting unit comprises a support and a smelting crucible arranged on the support. An induction coil is arranged on the smelting crucible. The outlet end of the smelting crucible is provided with a smelting crucible nozzle opposite to the base plate. The inlet end of the smelting crucible is connected with an air inlet through a rubber plug and used for providing inert gas for the smelting crucible. The method is used for achieving induction heating and rapid forming of the metal part through the device. The device and method have the advantages of being high in machining flexibility, small in subsequent machining amount and the like.

The invention discloses a zirconia ceramic fingerprint identification sheet and a preparing and application method thereof. The zirconia ceramic fingerprint identification sheet is prepared from a main material and auxiliary materials. The main material is zirconia powder, and the auxiliary materials are prepared from a bonding agent, a plasticizer, a dispersing agent and a solvent. The preparing method includes the following steps that the main zirconia powder material, the bonding agent, the plasticizer, the dispersing agent and the solvent are dispersed to be mixed to be even, and slurry capable of carrying out tape casting is obtained; the slurry is subjected to vacuum bubble removing, and a film forming belt is formed in a tape-casting mode; the tape-casting belt is dried to be crop, the product is put into a mold and subjected to punch forming, a punching blank with the required shape is prepared, constant temperature and isostatic pressing are carried out, and a raw blank is obtained; the raw blank is degreased and subjected to glue discharging, and then the product is sintered into ceramic sheets; the ceramic sheets are appearance processing and polished, and then the zirconia ceramic fingerprint identification sheet is obtained. The zirconia ceramic sheet prepared with the method is high in strength, toughness and size accuracy. The tape-casting processing mode is adopted, the following processing amount is small, the preparing production efficiency is high, and large-scale production can be met.

The invention relates to a valve body wax mold of a tri-eccentric butt-clamped metal sealing butterfly valve. The valve body wax mold is characterized by consisting of a front mold shell, a rear mold shell, a left valve body path core, a right valve body path core, a shaft hole core, a plurality of installation hole cores, a baffle plate and a fastening member; the front mold shell and the rear mold shell which are fixed together form a valve body cavity which is matched with the shape of the valve body and comprises a valve body path part cavity, a shaft hole upper end face part cavity, a shaft hole part cavity and an installation hole plate part cavity; the left valve body path core and the right valve body path core pass through the left sides and the right sides of the front mold shell and the rear mold shell so as to be penetrated and fixedly inserted into the path part cavity together; the shaft hole core is inserted into the shaft hole part cavity; the plurality of installation hole cores are respectively inserted into the installation hole part cavity; the baffle plate is covered on the shaft hole end face part of the valve body cavity; and a pouring hole is formed corresponding to shaft hole end face part. The valve body wax mold of the tri-eccentric butt-clamped metal sealing butterfly valve has the advantages of increasing the size precision and the surface finishment of the valve body, reducing the manufacturing cost and improving the production efficiency.

The invention relates to a vacuum impregnation and hot-press curing molding method for a carbon fiber composite material. The vacuum impregnation and hot-press curing molding method comprises vacuum heating and pre-dipping and hot-pressing dipping and curing forming, heating and dipping and extrusion forming of the composite material are achieved through a vacuum heating dipping device and a pressing and dipping and curing device, so that the gas impurities in the carbon fiber cloth laminated layer can be discharged in time, the defect of vacuum impregnation can be made up, so that the curingsolution can be better filled into the gap of the carbon fiber cloth, the defects of pores, shrinkage cavities and shrinkage porosity of the extruded composite material can be obviously reduced, the density is obviously improved, and then the performance of the composite material is improved. According to the vacuum impregnation and hot-press curing molding method, the composite materials with different shapes and sizes can be formed in a near-net mode according to the shape matched with the upper die and the lower die.

The invention discloses light curing injection mold cores and a manufacturing method thereof. The light curing injection mold cores comprise a fixed mold core and a movable mold core. The manufacturing method includes the following steps that firstly, layering is conducted on the designed fixed mold core or the movable mold core which is subjected to shelling and comprises a pouring system and a conformal cooling channel with layering software, the layered fixed mold core or movable mold core is loaded to a rapid light curing forming machine, and a shell of the fixed mold core or the movable mold core is manufactured; then a backfilling material is manufactured, vacuum stirring processing is conducted on the backfilling material with a vacuum casting machine, a shell pouring cavity of the fixed mold core or the movable mold core is filled till the shell pouring cavity is fully filled, curing is conducted at the room temperature for 10-24 hours, and the light curing injection mold cores are obtained. The light curing injection mold cores which are manufactured in a light curing mode and provided with the conformal cooling channel and subjected to backfilling are short in manufacturing cycle, low in manufacturing cost and applicable to rapid manufacturing of medium or small batches of injection products and rapid trial-manufacture and performance detection of new products and the like.

The invention discloses an additive hot-pressing inflatable composite forming method for a topological structure wallboard, belongs to the technical field of precision sheet metal processing, and solves the defects of poor integrity, difficulty in appearance precision control or higher cost in existing technical processing. The forming method comprises the following steps of step 1, determining positions of reinforcing ribs and a topological structure of a topological structure wallboard blank required by hot-pressing forming; step 2, preparing the topological structure wallboard blank by an additive; step 3, manufacturing a hot-pressing forming die of the topological structure wallboard; step 4, placing the topological structure wallboard blank in a cavity of a hot-pressing forming die, and performing hot-pressing forming on the topological structure wallboard blank; and step 5, forming a closed cavity between the topological structure wallboard blank and an upper die, communicating the closed cavity with an external gas source through a vent hole, and performing ventilation and pressurized correction on the closed cavity in order to enable a curved surface part between the reinforcing ribs of the topological structure wallboard to form a smooth curved surface. According to the method, the surface quality of parts is improved.

The invention discloses a forming device and a method for guiding molten metal coating by using a metal wire. The forming device comprises a base plate, a spray head, a 3D displacement platform and the metal wire, wherein the base plate is fixed on the 3D displacement platform; the upper end of the metal wire is inserted into a nozzle at the bottom of the spray head and is fixed on the inner side surface of the nozzle, the lower end of the metal wire is suspended in the air, and the included angle between the lower end of the metal wire and the base plate is 90-95 degrees; and the spray head and the metal wire are positioned above the base plate. By adopting the forming device and the method disclosed by the invention, the strain deformation of a pair, caused by the stress, can be effectively reduced, and the accuracy of a formed part is ensured.

The invention discloses a method for the connection of a conveying shaft used for precision conveying and a bearing supporting part. The method comprises the following steps: (1) a hollow main body is fixed on rotating equipment; (2) the connecting part of the hollow main body is heated; (3) the cylindrical bearing supporting part is inserted into the hollow main body; (4) after the cylindrical bearing supporting part is inserted into the hollow main body, the cylindrical bearing supporting part and the hollow main body rotate together to form a central rotating shaft; (5) the hollow main body inserted into the cylindrical bearing supporting part is cooled down together, and after cooling, gapless matching is formed between the cylindrical bearing supporting part and the hollow main body; and (6) the outer surface of the connecting part of the hollow main body is processed. The hollow main body of the conveying shaft is connected with the cylindrical bearing supporting part without welding, so that the production steps are reduced; rotating insertion is adopted, so that the hollow main body of the conveying shaft and the cylindrical bearing supporting part have identical central shaft, the production process is simple, the subsequent processing amount is small, and the cost is low.

A production method of a bearing device comprises the steps as follows: providing a bearing mold; injecting a mixture of metal powder and a fusion binder into the bearing mold in an injection molding mode to form a bearing body blank and an upper cover blank respectively; removing the binder in the bearing body blank and the upper cover blank; sintering the bearing body blank and the upper cover blank to produce a bearing body and an upper cover; and assembling the upper cover on the bearing body to form the bearing device. The production method of the bearing device reduces follow-up processing amount effectively and can produce parts with high melting point, high strength and complex shape more conveniently compared with other molding modes.

The invention discloses a hub casting die. The hub casting die comprises an upper die, a side die and a lower die, and the upper die, the side die and the lower die are combined to form a hub casting cavity. The upper die in a split structure consists of an upper die ring and an upper die modeling block connected with the lower end of the upper die ring, simultaneous standard machining of accessories of the die is realized, only the upper die modeling block and/or the lower die need to be replaced when hub types change, and only the upper die ring and the side die need to be replaced when rim widths of the hubs change, so that a traditional method of making a new die for each type of new products is effectively changed, idle die amount and capital input are greatly reduced for enterprises, and utilization rate of die accessories is effectively increased. In addition, workload and cost for development of new dies are greatly reduced, and die development schedule is accelerated while new product launch time is shortened.

The invention provides a forming method of a large-size thin-wall complex curve section annular part. The method comprises the following steps of dividing an annular part model into N arc-shaped part models in a circumferential direction according to a model size of the annular part; designing a hot forming process part and designing a hot forming die; determining a size of a needed blank, conducting blanking, conducting circle preforming on the blank obtained through blanking, and preparing a circle preformed part; conducting hot forming on the circle preformed part through the hot forming die to obtain the hot forming process part; removing a process allowance of the hot forming process part to prepare an arc-shaped part; conducting surface treatment on the N arc-shaped parts; assembling and welding the N arc-shaped parts subjected to surface treatment to obtain the annular part; and correcting the shape of the welded annular part. According to the method, a metal plate preforming plus hot forming plus welding composite forming technology is adopted, the most suitable forming technology is adopted for different portions, and therefore precise forming of parts is integrally achieved, the subsequent machining amount can be effectively reduced, subsequent manual shape correction is avoided, the efficiency is improved, and the cost is reduced.

The invention discloses a novel hot dipping aluminum alloy with hydrogen sulfide and sodium chloride corrosion resistance. The aluminum alloy comprises the following components in percentage by weight: 0.1-0.2 wt.% of Ba, 0.3-0.5 wt.% of Hf, 0.4-0.6 wt.% of Ca, 1.2-1.5 wt.% of Bi, 0.2-0.4 wt.% of Sc, 0.1-0.2 wt.% of Eu, 0.2-0.3 wt.% of S, and the balance aluminum. The aluminum alloy solves the current situation of backward technologies in the national hot dipping aluminum alloy field at present, and breaks through the bottleneck of restricting the development of hot dipping aluminum steel plate production technologies and equipment in the national high-end field through technology innovation and optimal design. In the near future, the material can be widely applied to more fields.

The invention provides a high power density substrate inlaid with diamond copper and a preparation method thereof. A substrate body comprises a diamond copper composite material portion, a tungsten copper and molybdenum copper alloy or an oxygen-free copper portion. The alloy portion is inlaid on the composite material or the composite material is inlaid on the alloy, and the two portions are in metallurgical bonding or welding bonding; by means of a vacuum pressure infiltration process, newly net forming can be directly performed. The substrate has heat conductivity which is higher than that of alloys such as tungsten copper alloy; the coefficient of thermal expansion is matched with that of a semiconductor material; the substrate is likely to be machined, and is better than a pure diamond copper material in machinability; the substrate is small in relative mass and moderate in price and convenient to popularize and use, and can meet the heat-dissipating demands of a high power electronic apparatus, so that the heat-dissipating problem restricting high power and miniaturized development of the electronic apparatus is solved.

The invention discloses a metal micro-coating forming system and a method thereof. The system comprises a base plate, a heating device and a fixed feeder, wherein the base plate is fixed on the heating device, the fixed feeder is arranged above the base plate, a gap is formed between the fixed feeder and the base plate, and a molten metal channel is formed on the fixed feeder along the vertical direction. The stress-strain transformation of the formed parts can be effectively reduced and the precision of the shaped parts can be increased.

The invention provides a full-automatic injection molding machine and belongs to the field of industry machinery. The full-automatic injection molding machine is composed of a drive screw engine, a cylinder, a screw, a hopper, a paint hopper, a heater, a humidity measurer, a filter membrane, a pull rod, a pouring path, a die assembling device, an injection cylinder, an oil cylinder and a hydraulic engine, wherein the drive screw engine is connected with the screw; the screw is arranged in the cylinder; the front end of the cylinder is provided with an opening; the hopper and the paint hopper communicate with the cylinder; the heater and the humidity measurer are both arranged on the cylinder; the filter membrane is arranged at the opening of the cylinder; the pouring path and the die assembling device are connected to the pull rod; the pull rod is arranged at the front end of the cylinder; one end of the injection cylinder is connected with the screw, and the other end of the injection cylinder is connected with the oil cylinder; the other end of the oil cylinder is connected with the hydraulic engine. According to the full-automatic injection molding machine provided by the invention, plastic molds in various colors can be injection-molded; the humidity of the equipment can be checked at any time, so loss caused by dampness of electric appliances is avoided; the filter membrane is capable of preventing impurities from entering the die assembling device, so the production quality is improved.

The invention discloses a reducing furnace electrode repairing method. The reducing furnace electrode repairing method comprises the following steps that firstly, cleaning and grinding treatment is conducted on the surface of a to-be-repaired area on a reducing furnace electrode; secondly, inert gas is used for loading to-be-sprayed particles, and after heating is conducted to 200-800 DEG C, the to-be-sprayed particles are sprayed to the surface of the to-be-repaired area; and thirdly, mechanical machining is conducted on a reducing furnace electrode surface coating according to the actual usage size, and a repaired reducing furnace electrode is obtained. According to the reducing furnace electrode repairing method, a repairing body can be dense, and the bonding strength between the repairing body and an electrode base body material is high; based on the electrode component shape, the electrode material deposition precision can be optimized by controlling the nozzle size, spraying parameters, tracks and the like, and the subsequent machining amount is reduced; the thickness and the shape of the repairing body are not limited, and the reducing furnace electrode repairing method canbe used for repairing of electrodes different in damage degree; applicable materials are wide, a base body and the coating can be repaired at the same time, and efficiency is high; and the spraying process is simple, heat treatment is not needed, cost is low, and the production efficiency is high.