24results about How to "Simple forming method" patented technology

The invention discloses an integrally-formed stiffened wall plate with light weight and high overall strength, and a forming mold, a forming method and application of the integrally-formed stiffened wall plate. The invention belongs to the technical field of stiffened wall plates and forming molds thereof. The technical problems that ribs and skin of an existing stiffened wall plate are prone to debonding and failure, so that the overall strength and reliability are poor, and an existing forming mold is not high in flexibility are solved. The lower edge strips integrated with the left vertical ribs and the right vertical ribs are arranged between the adjacent vertical ribs of the stiffened wall plate, and the lower edge strips and the skin are integrated through co-curing. The mold comprises an upper mold, a lower mold, a core mold and two L-shaped molds, the core mold and the two L-shaped molds are located between the upper mold and the lower mold, the core mold is in a right-angle U shape, the upper mold is clamped in a U-shaped opening, the vertical faces of the two L-shaped molds are horizontally and oppositely arranged inwards, and limiting blocks are arranged at the two ends of the vertical faces of the L-shaped molds and used for clamping the core mold. The forming method is convenient, co-curing forming is adopted, and the preparation process is simplified. The stiffened wall plate is applied to aircraft wings, fuselages and air inlets.

The invention discloses a flame-retardant starch-based biomass composite material and a preparation method thereof. The flame-retardant starch-based biomass composite material comprises starch and N-methylmorpholine-N-oxide, and can also comprise biomass fibers, a biodegradable synthetic polymer, ammonium polyphosphate and pentaerythritol. The mass ratio of the starch to the N-methylmorpholine-N-oxide to the ammonium polyphosphate to the pentaerythritol is (60-75): (20-30): (6-12): (2-5). The preparation method of the flame-retardant starch-based biomass composite material comprises the following steps: firstly, mixing part or all of starch with N-methylmorpholine-N-oxide liquid, and heating to prepare a thermoplastic starch material; and melting, mixing and extruding the thermoplastic starch material, ammonium polyphosphate, pentaerythritol, a reinforcing material and a biodegradable synthetic polymer by adopting a screw extruder. The flame-retardant starch-based biomass composite material disclosed by the invention is completely biodegradable, excellent in mechanical property and flame-retardant property, and the preparation method is simple and convenient.

The embodiment of the utility model provides a battery monomer, a battery and electric equipment. The battery monomer comprises a shell, the shell is provided with a first wall part, the first wall part is provided with a first groove and a second groove, the first groove defines at least one preset pressure relief area, the first wall part is configured to be capable of cracking along at least one part of the first groove when the battery monomer is subjected to pressure relief, and the first wall part is provided with a first surface and a second surface which are opposite to each other; the second groove is arranged on the first surface, and the second groove is used for guiding at least one part of the preset pressure relief area to turn over. The second groove comprises a first groove side face and a second groove side face which are oppositely arranged, the first groove side face is closer to the preset pressure relief area than the second groove side face, and the angle between the first groove side face and the first surface is smaller than that between the second groove side face and the first surface. The risk that the predetermined pressure relief area is opened in advance due to poor surface smoothness can be reduced, and the service life of the single battery is prolonged.

The invention discloses a rain-erosion-resistant ceramic-based composite material as well as a preparation method and application thereof, and belongs to the technical field of wave-bearing and wave-absorbing ceramic-based composite materials. According to the preparation method, a BN interface layer is deposited on the surface or in internal gaps of an Al2O3 fiber preform or a SiC fiber preform through a chemical vapor infiltration process, and then a reinforced matrix is introduced into the fiber preform with the BN interface layer through the chemical vapor infiltration process and a polymer impregnation and cracking process. The ceramic-based composite material prepared in the invention has good wave-absorbing performance, mechanical performance and rain erosion resistance; the method can be applied to preparation of aircraft hot end components.

The utility model provides a battery monomer, a battery and a power utilization device, and belongs to the technical field of batteries. Wherein the battery monomer comprises a shell, an electrode terminal and an electrode assembly. The housing has a first wall. The electrode terminal is arranged on the first wall. The electrode assembly is accommodated in the housing, and the electrode assembly is electrically connected with the electrode terminal. The first wall is provided with a pressure relief groove, the first wall is configured to be capable of cracking along at least part of the pressure relief groove when the battery monomer is subjected to pressure relief, the projection of the pressure relief groove is not overlapped with the projection of the electrode terminal in the thickness direction of the first wall, and the thickness of the electrode terminal is greater than that of the first wall. The structural rigidity of the first wall can be improved through the electrode terminal, so that the deformation resistance of the first wall is improved, the strain and strain amplitude of the area, provided with the pressure relief grooves, of the first wall in the using process can be reduced, the phenomenon of low-cycle fatigue of the area, provided with the pressure relief grooves, of the first wall can be reduced, and the service life of the first wall is prolonged. And the risk of early valve opening of the single battery is reduced.

The utility model relates to the technical field of laser cutting, and provides a laser cutting machine working table and a laser cutting machine, the working table comprises a mounting frame, a main connecting piece and a plurality of cutting supporting pieces, the mounting frame comprises a main transverse frame piece and a main longitudinal frame piece, the main longitudinal frame piece is arranged at the end of the main transverse frame piece, and the cutting supporting pieces are arranged on the main transverse frame piece. The main transverse frame pieces and the main longitudinal frame pieces jointly define a rectangular installation frame, the ends, close to the main longitudinal frame pieces, of the main connecting pieces are connected with the main longitudinal frame pieces in a matched mode, the ends of every two adjacent main connecting pieces are connected, and therefore the main connecting pieces are installed on the installation frame. The installation parts are arranged on the main transverse frame pieces and the main connecting pieces, the cutting supporting pieces arranged in a sawtooth strip shape are installed in the installation parts, therefore, the cutting supporting pieces are detachably installed on the installation frame, after the ends of the cutting supporting pieces are damaged, the damaged cutting supporting pieces are directly detached from the installation frame, and therefore the cutting supporting pieces can be installed on the installation frame. And then the complete cutting supporting piece is replaced, and the adaptability is wide.

The invention discloses a prefabricated part for ancient building grey plastic and a multi-arc grey plastic part forming method.The prefabricated part comprises a base and a double-end stud, a fixing frame is integrally formed at the top of the base, multiple sets of transverse and vertical sliding ways are formed in the top of the base, and extrusion blocks are slidably connected to the two ends of each sliding way; a rotary knob lead screw is in threaded fit with the interior of the fixing frame, a prefabricated part mold assembly is placed in the middle of the base and comprises a mold bottom plate, a mold transverse plate and a mold vertical plate, the mold transverse plate and the mold vertical plate are spliced and installed at the upper end of the mold bottom plate through a positioning mechanism, and a fastening assembly is assembled on the outer side of the mold transverse plate; bosses are integrally formed at the two ends of the tops of the mold vertical plates, through holes are formed in the bosses, and the bosses opposite to the mold vertical plates are fastened and connected by arranging studs in a penetrating mode. A positioning mechanism and modular assembly are adopted, multiple sets of components can move synchronously to form and prefabricate the multi-arc-shaped gray plastic part, demolding is convenient, and the forming quality is high.

The utility model relates to the technical field of battery cooling of new energy automobiles, and provides an expansion kettle, a cooling system and a vehicle, the expansion kettle comprises a kettle body and a conveying pipeline group, a separation flow channel is arranged in the kettle body, the lower end of the kettle body is provided with an opening, and the conveying pipeline group comprises a conveying pipeline and a discharge pipeline. One end of the conveying pipeline corresponds to the opening, and the other end of the conveying pipeline is communicated with a cooling pipeline of the battery cooling system; provided is a pressure water tank cover. A gas-liquid mixture discharged from the cooling pipeline enters the conveying pipeline, and part of the gas-liquid mixture enters the kettle body along the conveying sub-pipeline, is subjected to gas-liquid separation by utilizing the separation flow channel, and is output into the converging sub-pipeline from the kettle body along the outlet; and the other part of the gas-liquid mixture directly flows into the exhaust pipeline along the converging sub-pipeline, and the gas-liquid mixture in the cooling pipeline enters the conveying pipeline again, so that the circulation is realized, and finally, the effect of gradually emptying the air in the cooling pipeline is realized.

The embodiment of the invention provides a manufacturing method of a blade rear edge bonding structure, a fan blade and a wind turbine generator, and belongs to the technical field of blade preparation. The method comprises the steps that the bonding thickness and the bonding width of each bonding area of the blade rear edge are determined; baffles are arranged at the two ends of each bonding area respectively, forming tools are installed on the bonding areas based on the bonding thickness and the bonding width, and the blades, the baffles and the forming tools form a containing cavity; laying a plurality of prepreg layers and a foaming material in the accommodating cavity, wherein the amount of the foaming material is determined by the volume of the accommodating cavity; and heating each bonding area until the curing degree of the foaming material reaches a preset threshold value, stopping heating, and completing preparation of the blade rear edge bonding structure. The method has the advantages of high positioning precision, simple forming method, high forming quality, and high structural rigidity and buckling stability of the integral trailing edge of the blade.

A method for constructing a supporting pile inter-pile plate structure: before pouring concrete of a supporting pile (1), a foam board (4) is used to block a horizontal ring reinforcement groove (6); after the supporting pile (1) concrete construction is completed, a foundation pit is excavated in layers and sections, the foam board (4) in the reserved groove of the adjacent pile body is removed, and an inter-pile plate (2) is inserted; after the lower earthwork is excavated, the inter-pile plate (2) is inserted and connected with the previous inter-pile plate (2); the inter-pile plate (2) is pushed and squeezed downward, and this cycle is repeated until the construction of the inter-pile plate (2) is completed; finally, waterproof cement mortar is injected into the joint of the supporting pile (1) and the inter-pile plate (2) and the joint of the upper and lower inter-pile plates (2). The method for constructing a supporting pile inter-pile plate structure reduces construction wet work, improves work efficiency, shortens construction period, and has simple construction steps.

The invention discloses an ultra-high-strength titanium alloy fastener head structure upsetting forming method which comprises the following steps that firstly, an ultra-high-strength titanium alloy straight bar is cut off after being subjected to surface treatment, and an ultra-high-strength titanium alloy blank is obtained; secondly, the to-be-deformed area of the ultrahigh-strength titanium alloy blank obtained in the first step is heated, then the to-be-deformed area is transferred into an upsetting die to be subjected to upsetting forming, and a fastener head structure is obtained; the heating temperature ranges from 700 DEG C to 730 DEG C. According to the method, the to-be-deformed area of the ultrahigh-strength titanium alloy blank is heated to 700-730 DEG C before upsetting, the temperature is lower than the solution treatment temperature of the ultrahigh-strength titanium alloy material, it is ensured that the to-be-deformed area has good machinability and metal fluidity for upsetting forming, and the method is suitable for the technical field of fastener preparation.

The application relates to the technical field of steel structure node connection, and discloses a node connection structure and a cooling tower, which is used for the intersection node of two overlapped and intersected rod pieces and comprises two oppositely arranged clamping plates which are distributed on the two sides of the two rod pieces and are provided with limiting grooves on the inner sides corresponding to the two rod pieces; and a clamping piece which is clamped on the edges of the two clamping plates at two ends and is fastened and connected between the two clamping plates and the clamping piece to clamp and fix the two rod pieces between the two clamping plates. In the application, the rod pieces do not need to be broken at the node, the rod pieces are provided in length, the rod pieces are obliquely overlapped, the overall stability of the structure is stronger, the strength is higher, and the limiting grooves corresponding to the two rod pieces are arranged in the two clamping plates, the two rod pieces can be constrained and limited in the preset intersecting direction, the rod pieces can be prevented from sliding, and the stability of the overall structure is further improved.

The application discloses a high-temperature heating structure and a preparation method and application thereof, and belongs to the electric heating field. The application first prepares an insulating blank, forms a heating core by combining an electrically-conductive film with an electrode, presses the heating core between two layers of the insulating blank to form a prefabricated part, connects a wire after glue removal, high-temperature treatment and fine size processing, and finally obtains the high-temperature heating structure. The application has the advantages of no high molecule, double-side insulation, safety and high-temperature resistance, integrative structure, high strength and thermal stress resistance due to the high-temperature resistant fiber, large heating area, uniform heating, simple process and easy scale production, and has wide application in the precise thermal tooling equipment field in the semiconductor and electronic manufacturing field.

The present application relates to whip antenna technical field, specifically to carbon fiber whip antenna structure and forming method. The existing carbon fiber whip antenna conduction performance is poor, the resistance value is large, the radiation efficiency is low. The carbon fiber whip antenna structure includes first metal joint, carbon fiber tube and second metal joint and the conductive wire connecting two metal joints. Its forming method is that the first metal joint and the second metal joint are installed at both ends of the mold; carbon fiber prepreg is laid; the conductive wire is wound; carbon fiber prepreg is laid again; the antenna outer surface is wrapped with metal mesh; the metal mesh is wound and fixed with the conductive wire; the connecting part of the metal mesh and the first metal joint and the second metal joint is wound with carbon fiber prepreg respectively; compaction and solidification; demolding. The carbon fiber whip antenna has good conduction performance, small resistance value, high resistance radiation efficiency, light structure quality, excellent mechanical properties, fatigue resistance, corrosion resistance, large power bearing, high radiation efficiency, long service life, high efficiency of the workpiece.

The invention discloses a titanium alloy large-thickness multi-layer mixed grid structure and a forming method, and relates to the field of lightweight structures, the titanium alloy large-thickness multi-layer mixed grid structure comprises at least one layer of grid structure unit, each layer of grid structure unit comprises an upper panel, a lower panel and a mixed grid structure between the two panels, the mixed grid structure is composed of a channel structure and a lattice structure, the channel structure is in an X shape, and the lattice structure is arranged between the upper panel and the lower panel. Openings in two ends of the X-shaped channel structure are respectively fixed with the upper panel and the lower panel; when the number of the grid structure units is not smaller than two, in every two adjacent layers of grid structure units, the upper face plate of one layer of grid structure unit is fixedly connected with the lower face plate of the other layer of grid structure unit. The non-uniform bearing characteristic is achieved, and the bearing performance and rigidity of the grid structure are improved.

The utility model relates to the technical field of medical instruments, and provides a shock wave balloon catheter which comprises an inner tube and an outer tube. At least one shock wave generating assembly is arranged at the far end of the inner tube and comprises an inner electrode set, an insulating layer and an outer electrode, the inner electrode set comprises a first inner electrode and a second inner electrode, the two inner electrodes are arranged on the outer wall face of the inner tube in a sleeving mode, and a gap is formed between the two inner electrodes; and the injection channel is formed between the insulating layer and the outer electrode by avoiding the two inner electrodes, and the injection channel is communicated with the interval, so that the adhesive insulating medium is conveyed into the interval along the injection channel, and at least the interval is filled with the adhesive insulating medium. The two inner electrodes are insulated and isolated through the bonding insulating medium, so that after the shock wave generating assembly is powered on for use, current passes through a preset discharge channel of the shock wave generating piece, and the use effect of the shock wave generating catheter is guaranteed.

The invention provides a Ru-based catalyst for direct preparation of olefin from synthesis gas, a forming method and application thereof, and the forming method comprises the following steps: dipping a strip-shaped carrier subjected to extrusion forming in a precursor solution, drying and roasting to obtain the formed Ru-based catalyst; the precursor solution is formed by mixing a soluble salt corresponding to a Ru element, a soluble salt corresponding to a first metal M1 element and a soluble salt corresponding to a second metal M2 element. According to the invention, the carrier material is extruded into the strip-shaped carrier through the banded extruder, and the active component is loaded on the strip-shaped carrier through impregnation, so that small-size catalyst particles are obtained, the influence of diffusion limitation of a fixed bed reactor is reduced, the uniform distribution of the active component is ensured, and the catalytic performance and stability of the catalyst are improved; the catalyst has high CO conversion rate and low methane and CO2 total selectivity when being applied to a reaction for preparing olefin from synthesis gas, meanwhile, the total olefin selectivity is high, and particularly, the yield of C5 + olefin is remarkable.

The invention discloses an earthen block product formed by vacuum high-pressure packaging and a forming method thereof, the earthen block product comprises a prefabricated earthen block formed by wet composite soil mixed with cement through high-pressure forming, the prefabricated earthen block is arranged in a vacuum bag, and the vacuum bag tightly covers the prefabricated earthen block after being vacuumized and sealed; the prefabricated soil blocks subjected to vacuum packaging are wrapped with geotechnical cloth bags, and ports of the geotechnical cloth bags are closed and tightly sealed; the fiber reinforced cloth bag is tightened and wrapped outside the prefabricated soil block; the formed soil block is formed by adopting easily available soil raw materials, is not easy to digest when being used underwater after being sequentially glued and modified, has certain compressive strength and durability, and is sequentially provided with a vacuum bag, a geotechnical cloth bag and a fiber reinforced cloth bag from inside to outside, so that the prefabricated soil block is isolated from the external environment; seawater erosion and air blowing are avoided, inverted filtering and buffering are formed, prefabricated soil block ablation and material loss are further prevented, the compressive strength of the soil block product is improved, and land and underwater use can be met.

The present invention relates to the technical field of mushroom drying equipment, and discloses a drying rack connecting bracket and its design method and molding method. The design method of the drying rack connecting bracket includes: designing a bracket body, designing the two end structures of the bracket body, so that a plurality of bracket bodies can be detachably connected head to tail in sequence; designing a bayonet on the bracket body according to the matching part of the drying net, so that the matching part of the drying net can be plugged into the bayonet. The molding method includes the following steps: designing the processing drawings and processing parameters of the drying rack connecting bracket according to the design method of the drying rack connecting bracket; preparing the stamping die and the workpiece to be processed according to the processing drawings and processing parameters; placing the workpiece to be processed on the stamping die, stamping the workpiece to be processed, and obtaining the drying rack connecting bracket. The designed connecting bracket is easy to disassemble and assemble, has better support stability, lower transportation cost, and better flexibility of use.

The present invention discloses a mold for stretching and a molding method thereof, the mold comprises an upper mold assembly and a lower mold assembly below it, and a stripper plate arranged between the upper mold assembly and the lower mold assembly, the stripper plate is connected to the upper mold assembly and a gap is arranged between them; the upper mold assembly comprises an upper mold plate and a concave mold stripper plate arranged on the upper mold plate, an upper buffer spring is arranged between the upper mold plate and the concave mold stripper plate; the lower mold assembly comprises a lower mold plate and a convex mold pressing plate arranged on the lower mold plate, a lower buffer spring is arranged between the lower mold plate and the convex mold pressing plate; a delay assembly is arranged on the upper mold assembly and the stripper plate, a clamping assembly is arranged on the lower mold assembly, the delay assembly can push the clamping assembly to press the convex mold pressing plate, and block the clamping assembly from moving before the concave mold stripper plate is separated from the part. The present invention can avoid rebound or deformation during the part stripping process, ensure the quality of the part, and make the processing more stable, reliable and effective.

The invention relates to the technical field of casting forming, in particular to a forming method for a circular narrow-channel casting. The annular narrow channel casting forming method comprises the following steps that S1, a plurality of split mold cores are put into a wax mold, and after positioning wax pressing and cooling shaping are conducted in sequence, a wax piece A is obtained; wherein the split mold core comprises a ceramic mold core, a fixed end, a free end and a soluble mold core; the fixed end is located at one end of the ceramic core, the free end is located at the other end of the ceramic core, and the ceramic core and the soluble core are connected through the free end; a wax layer is arranged on the surface of the free end; s2, a soluble and lost mold core in the wax piece A is removed, and a wax piece B is obtained; s3, the wax piece B is sequentially subjected to slurry spraying, sand hanging and steam dewaxing, and a mold shell is obtained; s4, molten metal is poured into the mold shell, after cooling, the mold shell, the fixed end and the free end are removed, the ceramic mold core is removed, and after sand blasting, an annular narrow-channel casting is obtained; the method improves the qualification rate of castings.

The invention relates to a cathode filament forming device and method for a space electron beam welding gun. The cathode filament forming device comprises a pressure sensor, an extrusion column, a supporting frame, a pressing head guide rail column, a cathode filament forming pressing head, a cathode filament forming positioning groove, a cathode filament forming mold and a fixing pin. According to the device and the method for forming the cathode filament of the space electron beam welding gun, the requirement of the cathode filament of the space electron beam welding gun can be simply and quickly met, and the device and the method can be popularized and applied to the field of space station electron beam processing; the device system is simple, the forming method is convenient in process, multi-specification simultaneous forming and single-specification batch forming of the cathode filaments can be achieved, the device with the pressure capable of being accurately controlled is formed, and the requirement for multifunctional application of a space electron beam welding gun is effectively met; the cathode filament of the space electron beam welding gun is prepared through the method, a finished product which is good in shape control design, high in precision, small in plastic deformation and good in comprehensive performance can be obtained, and the quality of beam spots can be guaranteed.

The present application provides a maxillary arch expansion brace and a processing method, which belongs to the field of dental correction technology. Among them, the maxillary arch expansion brace includes a brace body and a hard palate support part. A receiving groove is formed inside the brace body, and the brace body is configured to be sleeved on the surface of the crown of the maxillary teeth along a preset direction so that the maxillary teeth can be accommodated in the receiving groove. The hard palate support part is connected to the brace body. After the brace body is sleeved on the surface of the crown of the maxillary teeth along a preset direction, the hard palate support part can be supported on the hard palate. When the brace body is sleeved on the surface of the crown of the maxillary teeth, the support part will be supported on the hard palate, so that the brace body acts on the teeth, and the support part acts on the hard palate, and the entire brace can simultaneously apply expansion force to the bones corresponding to the teeth and the hard palate, so as to fully expand the mid-palate suture and achieve a good arch expansion effect.

The utility model relates to a rolling battery shell edge beam, which is formed by rolling and forming a steel belt, the section of the rolling battery shell edge beam is an integrated section shaped like a Chinese character'mu ', the rolling battery shell edge beam comprises a first closed cavity, a second closed cavity and a third closed cavity which are arranged in sequence, and the first closed cavity and the second closed cavity are separated by a first reinforcing vertical rib; the second closed cavity and the third closed cavity are separated through a second reinforcing vertical rib, the first closed cavity and the third closed cavity share one upper end face, and the first closed cavity and the second closed cavity share one first lower end face. The section structure of the edge beam is formed by the steel belt through roll bending, the forming mode is simple, the number of working procedures is small, the technology is simple, the section shaped like the Chinese character'mu 'can be achieved without the working procedures such as section tailor welding and repair welding, the structure is novel, strength is high, and practicability is high.