406results about How to "Shorten the manufacturing cycle" patented technology

The invention relates to a preparation method of silicon carbide and silicon carbide composite material member, especially relates to a preparation method of deformed silicon carbide and silicon carbide composite material member, and belongs to the technology field of ceramic matrix composite material. The impregnation phase and the precursor used in the preparation method not only comprise the solid PCS, but also comprise the liquid PCS, which is more cheap, so the technology matching property of the member is stronger, the densification efficiency of the member is improved to some degree, the cost is reduced and the preparation period of the member is shortened. The impregnation phase has little harm to the environment and the operators, and only a general type ventilation device is needed.

The invention relates to a method and device of disposing high-quality holes on carbon fiber composite material and meal material which are overlapped, belonging to the field of the mechanical processing and manufacturing technology. The method of disposing high-quality holes on the carbon fiber composite material and the meal material which are overlapped is characterized in that in the process of disposing holes on the carbon fiber composite material and the meal material which are overlapped by a device of disposing holes, such as a polycrystalline diamond (PCD), a coating, a cemented carbide bit and a diamond grinding rod, the rotating speed and the feeding speed of a cutter are automatically changed according to the materials on which holes are to be disposed by the hardware triggering or software numerical-control programming control mode of a feeding position sensor set so that the cutter can be in the optical process parameter state. The device of disposing high-quality holes on the carbon fiber composite material and the meal material which are overlapped is characterized by comprising a body, the cutter the handle of the cutter, an electric main shaft, the feeding position sensor set, a vertical feeding sliding-platform, a main shaft variable-frequency speed-regulating system and a hole disposing device numerical control system. The invention realizes the adaptive continuous processing, obviously improves the quality and the processing efficiency of holes disposed integrally on different overlapped materials and lowers the production cost.

The invention provides an integral manufacturing method of an S-04/S-08 high-strength stainless steel three-dimensional flow shrouded impeller. The integral manufacturing method comprises the steps of firstly, establishing an impeller three-dimensional model, and carrying out slicing treatment; determining the forming direction and support adding positions according to structural characteristics of the impeller; setting parameters of a laser selective melting forming processing technology according to characteristics of a high-strength stainless steel material; forming under protection of an inert gas; after forming, cleaning floating powder, removing a base plate through linear cutting, and removing supports; and finally, carrying out follow-up treatment such as surface treatment and thermal treatment on the impeller. According to the integral manufacturing method, complex cutters or fixtures do not need to be designed, materials can be directly added for part manufacturing only through the three-dimensional model of the impeller, the manufacturing cycle is greatly shortened, and the integral manufacturing method is applicable to trial manufacturing and middle and small-batch production in the development stage.

The invention discloses a plastic mold steel which comprises the following chemical components in percentage by weight: 0.25-0.29% of C, 1.30-1.50% of Mn, 0.40-0.60% of Si, 1.20-1.50% of Cr, 0.40-0.50% of Mo, 0.02-0.05% of Nb, less than or equal to 0.15% of Ni, less than or equal to 0.15% of Cu, less than or equal to 0.020% of P, less than or equal to 0.015% of S, less than or equal to 0.012% of N and the balance of iron and inevitable impurities. In the manufacture method of the plastic mold steel, a quenching and tempering heat treatment process is not used, and direct air cooling after forging is carried out, thus prehardened plastic mold steel with thickness above 600 mm and uniform hardness from core to surface is manufactured. According to the plastic mold steel disclosed by the invention, the limit that the existing non-quenched and tempered mold steel has thickness smaller than 400 mm is overcome, and the requirements of mold industries on low-cost high-quality large-sized prehardened plastic mold steel are reached.

The present invention discloses an adjustable hydraulic press with both upper and lower double action, specially suitable for the cylindrical gear formed by stamping or expanding, closed forging and the metal cold forming or metal hot forming of punching, finishing, flanging and drawing of sheet materials. The press comprises four columns, an upper beam, a main slide block, a hold down slide block, a fixing worktable, a floating worktable and a lower beam. The hydraulic chamber of master cylinder fixed in the upper beam communicates to the hydraulic chamber of the auxiliary cylinder, the plunger of master cylinder is connected to the main slide block and drives it. The hydraulic chamber of gas-liquid power accumulator fixed in the main slide block communicates to the hydraulic chamber of hold down cylinder, the plunger of hold down cylinder is connected to the hold down slide block and drives it. The plunger of ejecting cylinder fixed in the lower beam is connected to the floating worktable and drives it. The hydraulic press of the invention simplifies the hydraulic system of the existing hydraulic, improves utilization rate of energy, production efficiency and working accuracy of workpiece.

The invention discloses a preparation and on-board installation process of crane span of cutter suction dredger. The process comprises the following steps: preparing the jig of a crane span, performing sectionalized assembly of the crane span, performing wire-drawing to the trunnion of the crane span, performing wire-drawing to the trunnion of a hull, closing shipways, fixing the crane span, installing bolts, etc. The process of the invention has the advantages of convenient construction and good construction effect; and the installation time of the crane span is fully reduced, and the total cycle time for the preparation of ships is shortened.

The invention discloses a powder metallurgy preparation method for a high-strengthening-toughening metal-based composite material and belongs to the field of metal-based composite materials. The method comprises the steps that (1), mixed powder of metal powder and part reinforcing phase is subjected to ball-milling treatment, and ball-milling is stopped before all crystal particles in the metal powder reach ultrafine crystal; (2), the rest reinforcing phase is added to the powder after ball-milling in the step (1), the ball-milling is continued, and the ball-milling is stopped until the reinforcing phase is completely dispersed; (3), after the powder after the ball-milling in the step (2) is treated by powder metallurgy sintering process, then the high-strengthening-toughening metal-basedcomposite material is obtained. According to the powder metallurgy preparation method for the high-strengthening-toughening metal-based composite material, the reinforcing phase is made to be orderlydistributed in a base body by adding the reinforcing phase step by step; crystal particle distribution is adjusted and controlled utilizing the crystal particle refining effect of the reinforcing phase on the base body, a coarse and fine crystal gradient grading structure is formed, thus the strengthening-toughening of materials is realized; and by means of the powder metallurgy preparation methodfor the high-strengthening-toughening metal-based composite material, the process procedure can be simplified, and the strong plasticity of the materials can be improved at the same time.

The invention provides a preparation method of a material increase manufactured nickel-based high-temperature alloy reserved with the Laves phase. GH4169 high-temperature alloy with the Laves phase distributed in a dispersed particle shape is prepared through the preparation method, and compared with industrial forged and cast isometric crystal high-temperature alloy, the high-temperature mechanical properties, especially the high-temperature creep property, the high-temperature endurance life and the like are greatly improved. The preparation method comprises the following steps that firstly, in a processing rood, GH4160 high-temperature alloy powder or wire materials are processed through a high-energy beam heat source to be continuously melted and deposited on a base plate, so that the GH4169 high-temperature alloy reserved with the Laves phase is prepared; secondly, the prepared GH4169 high-temperature alloy reserved with the Laves phase is naturally cooled in the processing room and taken out after the temperature of the GH4169 high-temperature alloy is below 100 DEG C; and thirdly, two stages of heat treatment is conducted on the GH4169 high-temperature alloy which is taken out of the processing and reserved with the Laves phase in sequence, the first stage is completed by conducting heat preservation for 8-24 hours under the condition that the GH4169 high-temperature alloy is heated to the temperature of 700-740 DEG C, then the second stage is completed by cooling the GH4169 high-temperature alloy to the temperature below 600-640 DEG C along with a heat preservation furnace and then conducting heat preservation for eight hours, and finally air cooling is conducted till the indoor temperature is reached, so that the material increase manufactured nickel-based high-temperature alloy reserved with the Laves phase is obtained.

The invention discloses a method for preparing a false tooth support through a 3D printing laser stereo-lithography technology. According to the method for preparing the false tooth support through the 3D printing laser stereo-lithography technology, the individual false tooth support most suitable for a patient is printed through the 3D printing laser stereo-lithography technology; the comfort level and the service life of the false tooth support are ensured by means of a finite element technology; the operation difficulty of a physician is lowered; the manufacturing cost is reduced; the manufacturing period is shortened. The surface of the false tooth support is processed through an anodizing and/or electrochemical deposition method so that the surface of the false tooth support can have more excellent synosteosis features and biology activity, osteoblast growth and surface calcification are facilitated, and the satisfaction of the patient is improved. The method is suitable for the field of medical devices.

The invention discloses a method for manufacturing an end socket of a voltage stabilizer for nuclear power. The integral end socket is subjected to hot stamping deep drawing by a 16MND5 low-alloy steel plate, and is subjected to heat treatment of normalizing and tempering to form the end socket, which is reliable in quality, accurate in size and high in mechanical property, of the voltage stabilizer for nuclear power. In the method, the weight of the end socket manufactured by the low-alloy steel plate can be reduced by about half compared with that of the end socket manufactured by forging piece materials, the manufacturing period is short and the cost is reduced greatly.

The invention relates to an electrolytic machining method for multi-electrode screw feeding integral impeller flow passages, and belongs to the technical field of electrolytic machining. The method adopts a plurality of tool electrodes which are positioned on the same plane and arranged on an electrolytic machining clamp. In the machining process, a translation stage of a machine tool drives the plurality of the tool electrodes to simultaneously feed linearly along the axes direction of an impeller blank, and a turn table on the translation stage drives the plurality of the tool electrodes to rotate; meanwhile, the impeller blank rotates around the axes of the impeller blank, and the tool electrodes perform electrolytic machining along a motion trail determined by the resultant motion. The electrodes and the impeller blank keep a small clearance; electrolyte flows out at a high speed from gaps of the tool electrodes to continuously take away products of electrolysis; and a plurality of impeller flow passages are machined finally. The number and distribution positions of the tool electrodes can be adjusted to meet machining requirements of integral impellers in different types. Because the plurality of the electrodes are adopted to perform machining simultaneously, the machining efficiency for the integral impeller is greatly improved, and the rotation of the electrodes makes machining allowance more even at the same time.

The invention provides a module combined refrigerator which comprises a refrigeration system and an electric control system, wherein, the refrigerator is composed of a mainframe room and two or more cold rooms, and the mainframe room and the cold rooms are independent and separated from each other; the cold rooms comprise door bodies and insulation boxes; the mainframe room is internally equipped with two or more refrigeration system interfaces and electric control system interfaces, and the cold rooms are internally equipped with refrigeration system joints and electric control system joints which are correspondingly connected with the refrigeration system interfaces and the electric control system interfaces in the mainframe room; and the mainframe room is equipped with a compressor, a condenser, a capillary tube and a main controller, and the cold rooms are equipped with evaporators. By means of a plurality of combined module units in the mainframe room, the module combined refrigerator can simultaneously meet the combined use requirements for a refrigerating room, a cold room, a soft-freezing room, a wine cabinet and the like, thus meeting the personalized need of customers, reducing development expense, shortening design and production cycle, saving warehousing floor space, and facilitating storage and transportation.

A high tempering parameter PWHT embrittlement resistant, extra thick cryogenic steel plate and a manufacture method thereof. The steel plate comprises, by weight, 0.030%-0.070% of C, Si no more than 0.15%, 1.30%-1.60% of Mn, P no more than 0.013%, S no more than 0.0025%, 0.040%-0.070% of Als, 0.10%-0.40% of Cu, 0.25-0.65% of Ni, 0.10%-0.30% of Cr, 0.05%-0.25% of Mo, 0.007%-0.013% of Ti, 0.010%-0.030% of Nb, 0.020%-0.050% of V, N no more than 0.0045%, 0.001%-0.004% of Ca, residual iron and unavoidable inclusions. According to optimized controlled rolling and two times of normalizing technology, the steel plate gains extremely high ultralow temperature toughness, excellent HIC / SCC resistance, weldability and bearing capacity of high heat input welding; and more importantly, the steel plate has excellent high tempering parameter PWHT embrittlement resistance characteristic, and is especially suitable for manufacture of large-scale LPG low temperature storage tank, low temperature storage tank for ship and ocean platform for ice ocean.

The invention relates to an assembly welding tool device and method commonly used for large curved surface end sockets of pressure containers. The assembly welding tool device comprises a supporting base plate, a ball screw, grouped rolling bearings, a movement air cylinder, external locating blocks, internal locating blocks, a manual rocker and a graduated scale, wherein the ball screw and an executive component drive most of the external locating blocks and most of the internal locating blocks to move along guide rails of the supporting base plate so as to carry out integrated locating clamping fixation on the curved surface end sockets. According to the assembly welding tool device and method commonly used for the large curved surface end sockets of the pressure containers, in the manufacturing process of the pressure containers, tool locating of the large end sockets can be achieved, welding deformation is prevented, the curved surface end sockets are placed on the assembly welding tool device to be clamped in an assembly locating mode, spot fixation is carried out on weld joints, and then welding operation is carried out on the internal weld joints and the external weld joints; after welding is accomplished, the curved surface end sockets are naturally cooled to have the normal temperature, postwelding is carried out on the curved surface end sockets, stress relieving is carried out on the curved surface end sockets, labor intensity of workers is reduced, the production and manufacturing cycle of products is shortened, and the production cost is reduced.

The invention relates to wireless communication field and discloses a double-standby wireless terminal. In the invention, two independent radio frequency unit share a baseband unit in order to realize the simultaneous standby of two numbers and lower cost. When the two radio frequency units support 2G or 3G respectively, one of the radio frequency units is put to time division multiplexing by the baseband unit if two protocol processing units both work under 2G or 3G protocol, in order to achieve the effect of simultaneous standby of two numbers or communication under one of the numbers. When the networks supported by the two radio frequency units are identical to the networks supported by the two protocol processing units, the two protocol processing units form two combinations with different radio frequency units respectively so as to support the simultaneous standby and the simultaneous communication of the two numbers. Being further simplified, such a terminal uses one radio frequency unit and one baseband chip only and supports SIM or USIM slot and 2G or 3G protocol simultaneously, thus the terminal can be simplified into single-baseband chip single-module double-standby wireless terminal of 2G or 3G system.

The invention provides a method for preparing 24CrNiMo bainite alloy steel by using a selective laser melting technology. The method includes the steps that a laser device is used for conducting scanning on 24CrNiMo alloy steel power which is spread out on a base plate according to a preset selective laser melt scanning route till the power melts. According to the method, by optimizing technology parameters, taking use of the effects of alloy elements such as C, Cr, Ni, Mo, the bainite alloy steel which is uniform in microstructure is obtained at a high selective laser melting cooling speed, the average micro-hardness of the obtained bainite microstructure reaches 330-346 HV, the tensile strength is 962-978 Mpa, the elongation ratio is 16.4-17.6%, the product of tensile strength and elongation reaches 16.1-16.9 Gpa%, and the microstructure has excellent matched strength and toughness. The method and the technology are mainly applied to selective laser melting manufacture of 24CrNiMo alloy steel high speed rail brake discs.

The printed circuit board includes following composing portions: single sided boards in outmost two layers; cover membranes on the single sided boards; double sided boards with circuit being etched on in middle layers and pressed together through half solidifying glue; and cover membranes in inner layers for double sided boards. The invention also discloses method of making: combined hot pressing the single sided boards in outmost layers, the half solidifying glue, and the double sided boards with circuit being etched on directly. The invention can leave out some steps for hot pressing total single sided boards layer by layer so as to shorten manufacturing cycle, and raise production efficiency. The invention also reduces use of cover membranes in inner layers and half solidifying glue so as to reduce total side thickness of product, material cost, and enhance wrapping and folding performance of circuit board.

The invention relates to a production method of a 360-degree spiral stair with cambered box beams. The stair is formed by assembling and mounting of the cambered box beams on two sides, steps and bottom uprights. The method includes the steps: adopting a computer to perform part lofting according to three-dimensional spatial point coordinates of flange plates and webs in design details and X-Y coordinates expanded in a two-dimensional plane; accurately blanking on a numerical control cutting machine according to programming; producing and assembling a moulding bed; adopting a total station to measure positioning points of bottom flanges of the stair beams on the moulding bed; subjecting cambered plates to rolling and pressing shaping; assembling segments by an 'integral assembly, end to end connection and section falling head' mode; subjecting the box stair beams to integral welding and correction; assembling and welding step plates; measuring and correcting overall dimensions; and inspecting, and coating after sand blasting. By the production method, used energy, materials and labor can be reduced, production cycle and construction difficulty are reduced, and quality of a finished product is improved.

The invention discloses a rapid manufacturing method for laser remelting scanning carbide dispersion strengthened aluminum alloy. The method includes the following steps that (1) a three-dimensional part model is established on a computer, and then the three-dimensional part model is converted to be in an STL format and imported into selective area laser melting forming equipment; (2) aluminum alloy powder and carbide powder are mixed, and then are ball-milled through a ball grinder to be evenly mixed; (3) the ball-milled mixed powder is transferred into the selective area laser melting forming equipment, and the mixed powder is formed according to three-dimensional model data under the protection of inert gases; and (4) a formed part is separated from a substrate by the adoption of the wire-electrode cutting technology, and then is subjected to solution treatment in a muffle furnace, afterwards, quenching is carried out, ceramic bead sand blasting treatment is conducted, and accordingly a finished product is obtained. By the adoption of the method, dispersion strengthening phases can be evenly distributed, and therefore the purposes of obtaining the ceramic phase dispersion strengthened aluminum alloy and improving the high-temperature performance of the aluminum alloy are achieved.

The invention discloses a laser additive manufacturing technology of high-temperature alloy parts, and belongs to the technical field of laser additive manufacturing of metal powder. According to the invention, the technological parameter ranges of different high-temperature alloy materials are determined through basic technological experiments, and then additive manufacturing is carried out by adopting specific laser scanning paths and related internal defect control methods in the manufacturing process. The parts manufactured through the technology have the advantages that the forming efficiency is high, the cost is low, the internal quality is high, the automation degree is high and operation is easy. The high-temperature alloy parts capable of being applied industrially can be directly manufactured by adopting the technology, so that a new approach for manufacturing the high-temperature alloy parts is provided.

The invention relates to a method for preparing a nickel-based superalloy Rene80 directionally-grown column crystal/single crystal alloy and manufacturing parts, and belongs to the processing field of the laser materials. The method is carried out in atmosphere; a high-energy beam is taken as the heat source; the movement of the high-energy beam is achieved under the control of a numerical control system; the Rene80 powder flow conveyed by a carrier gas is smelted and deposited on a directionally-solidified nickel-based alloy substrate layer by layer; in this way, the nickel-based superalloy and parts having directionally-grown straight column crystal structure/single crystals and different cross-section shapes can be directly manufactured. The nickel-based alloy Rene80 directionally-grown column crystal/single crystal alloy parts manufactured by the method can be applied to manufacturing the hot end parts of naval ships, gas turbines and aero-engines.

The invention relates to an electric arc additive manufacturing method for a flange part. The electric arc additive manufacturing method for the flange part comprises the steps that a base plate, a wire, protective gas and equipment are selected; multi-layer and multi-pass accumulation is completed on the base plate from inside to outside along a spiral path through the electric arc additive manufacturing method, so that a bottom surface and a lower neck of the flange part are manufactured; multi-layer and single-pass accumulation is completed on the lower neck along a circular path, so that an upper neck of the flange part is manufactured, and the temperature, current, overlap rate and advancing speed between the layers and the passes are controlled; and redundant portions of the base plate are cut off, solid solution treatment is conducted, the temperature and the constant-temperature time are controlled, and water cooling is conducted. According to the electric arc additive manufacturing method for the flange part, restrains from complex tools, molds and special tools are avoided, only a small degree of finish machining needs to be conducted on a formed blank, the machining procedure is greatly simplified, the manufacturing cycle of products is shortened, and customized individual production can be achieved; and the nondestructive detection quality of the formed flange part is qualified, metal is pure, the structure, the plasticity and the toughness are optimized, the anisotropy phenomenon is improved, and the performance of the flange part can meet the quality and performance requirements for similar forged pieces.

The invention discloses a steam turbine blade fitting measuring tool and a processing technology thereof. The fitting measuring tool is a fake impeller simulating an arc of steam turbine rotor impeller, the fake impeller is provided with a plurality of blade assembling slots distributed in a radial manner, the contour line, the radial radius and the circumferential graduation of the assembling slot are all consistent with those of the assembling slot of real impeller, and the bottom of the slot is provided with a blade locking screw hole and screws. The fitting measuring tool is used for the pre-assembly of blades, in order to inspect the quality indexes of assembly in advance, avoid the quality-related problem of blades in batch, reduce maintenance rate, enable blades to meet the assembly requirement in production workshop, enhance working efficiency, shorten assembly period of unit, and lower economic losses.

The invention discloses a titanium alloy polyhedron rudder frame and preparation method thereof. The section of the titanium alloy polyhedron rudder frame is a right trapezoid which comprises a leading hedge slope and an inclined surface. The leading hedge slope and the inclined surface comprise two slopes which are symmetrical about the right trapezoid. The section of the inclined surface is a right trapezoid which shares the same right-angle waist with the rudder frame. The upper base of the inclined surface is less than the upper base of the rudder frame. The inclined surface is provided with several weight loss windows, which makes integrated components form a framework structure.

Disclosed is an electroplating diamond tool with high hardness and high wear resistance. The invention is formed by covering a coating of nano nickel-cobalt material on a green body of the diamond tool. The method of the tool comprises preparing electroplating liquid, preparing before electroplating of the green body of the diamond tool, and electroplating the green body of the diamond tool after the preparation. When electroplating the green body of the diamond tool after the preparation, the green body of the diamond tool is electroplated with the nano nickel-cobalt material by the utilization of the method of impulse electroplating. The electroplating liquid of the invention is formed by components of nickel sulfate, nickel chloride, cobalt sulfate, grain refiner, dodecyl sodium sulfate, boracic acid and the like. The tool has high hardness and high wear resistance, and thereby the service life is long. Further, the invention has the advantages of short manufacture period.

The invention provides a manufacturing method of a lost-foam casting foaming mold. The invention is characterized in that the manufacturing method comprises the following steps: firstly, the three-dimensional CAD model of a casting part is manufactured, and a colophony prototype used for casting a blank of the foaming mold is manufactured through a rapid molding machine; secondly, a colophony prototype used for casting an electric spark working electrode is manufactured; thirdly, the inner cavity structure of the blank of the foaming mold is copied by using a colophony prototype with the same size with the casing part and silica gel; fourthly, the blank of the foaming mold is cast by using the composite ceramic shell casting technology; fifthly, the electric spark working electrode is cast by using the colophony prototype for enlarging the size of the casting part by 0.5-1.5 mm and the composite ceramic shell casting technology; and sixthly, the blank of the foaming mold is processed by using the electric spark and assembled to obtain the foaming mold. The invention is suitable for manufacturing the foaming mold with a complex-shaped inner cavity, can rapidly obtain the blank and the electrode of the foaming mold, enables the chrematistics of the arbitrary prototype with a complex shape through the rapid molding technology to be displayed more obvious as for the more complex shape and realizes the rapid manufacture of the lost-foam casting foaming mold.

The invention belongs to the technical field of particle accelerators and particularly relates to manufacture of a radio frequency superconductor cavity. A manufacturing method of the superconductor cavity mainly comprises the following steps: (1) using superconductor materials as raw materials, (2) utilizing CAD software to generate a superconductor cavity model, and adopting layering software to layer the superconductor cavity model, (3) using an atmosphere control system to provide argon for a forming chamber, (4) laying powder of superconductor materials in the step (1) on a forming table of the forming chamber, (5) using a scanning control system to print laser energy onto a powder layer according to the description of a software model of a superconductor cavity slicing layer so as to generate a superconductor material slicing layer entity. The entity is a part of the superconductor cavity. A next slicing layer is processed continually on the first slicing layer entity until the whole superconductor cavity processing process is finished. Finally, mechanical polishing, chemical washing, high-temperature annealing, high-pressure super-pure water washing and super-clean chamber assembly are conducted. The method shortens the development cycle of the superconductor cavity, improves the finished product rate of the development of the superconductor cavity due to the fact that the whole superconductor cavity is free of welding joints, is free of restriction of stamping forming conditions and capable of improving the performance of the superconductor cavity, and reduces product cost due to the fact that surplus superconductor material powder can be used repeatedly.

The invention provides a method for preparing hydrophobic silicon dioxide aerogel by rice hull ash based water gel. The silicon dioxide water gel obtained by taking rice hull ash as materials is subjected to solvent replacement, surface finish in the siloxane phase and normal-pressure drying treatment to prepare the silicon dioxide aerogel with hydrophobic characteristics. For the aerogel prepared, the specific surface area reaches between 500 and 1000m<2>/g, the volume density is between 0.08 and 0.3g/cm<3>, and the sizes of the micropores are mainly distributed in the range of between 1 and 100nm. The method adopts advanced technologies of the solvent replacement, the surface finish and the preparation of the normal-pressure aerogel, thereby unnecessarily using expensive organic resources, avoiding the use of supercritical drying equipment which is commonly used in the convention preparation of the silicon dioxide aerogel and has problems of high price, low efficiency and high risk and the technological investment, and obviously lowering production risk and production cost. Moreover, the method also has the advantages of simple process, strong manageability and suitable mass production and application.

The invention belongs to the technical field of material processing engineering, and in particular relates to a resin casting mould rapid manufacturing method. The resin casting mould rapid manufacturing method is characterized by comprising the following steps of: (1) drawing a three-dimensional CAD (Computer-Aided Design) model of a mould according to a casting process drawing of a casting, and preparing a resin prototype for manufacturing a resin casting mould by a rapid prototyping device; (2) rapidly obtaining a die cavity for manufacturing the resin casting mould through a rolling over of a room temperature vulcanized silicone rubber mould by utilizing the prepared resin prototype; (3) manufacturing the resin mould through a manual paste mode by utilizing the die cavity for manufacturing the resin casting mould; and (4) assembling the resin mould prepared by manual paste on a mouldboard to complete the manufacturing process of the mould. Compared with the prior art, the invention has the advantages of facilitating design and modification to the appearance of the casting, being capable of rapidly obtaining the die cavity for manufacturing the resin casting mould, manufacturing the mould with a few tenths of millimeter of dimensional accuracy and shortening the manufacturing cycle of the mould.

The invention provides a method for producing a typified form under the assistance of a BIM (building information modeling) model, relates to the technical field of building construction, and aims to solve the problem that the conventional BIM technology is still in a design phase and cannot guide deep design and production of complex special-shaped forms. The method comprises the following steps: I, building a BIM model of a typified form with a structure to be poured with concrete via three-dimensional modeling software Autodesk Revit; II, exchanging BIM model data of the typified form and data of Inventor software; and III, reading data received by the Inventor software in the step II via Solidworks software, outputting an accurate construction drawing of the typified form with the structure to be poured with concrete, and carrying out processing and production. As a three-dimensional design model of the typified form is introduced into the Solidworks software via data exchange, and the accurate construction drawing is generated automatically, deep design and accurate processing of a mold of the typified form can be realized.