22results about How to "Increase packing density" patented technology

The invention relates to the technical field of polymer compositions, and discloses a fiber microcrack self-healing composition with a shape memory characteristic, which comprises modified polyester containing thermally reversible dynamic covalent bonds and an asymmetric polyether-polyester block copolymer interface regulator, the melt index ratio of the interface regulating agent to the modified polyester is 1.8-3.2, and the interface regulating agent is distributed on the periphery of the modified polyester to form a core-shell microdomain. By utilizing the rheological gradient among the components, the interface regulating agent forms a low-viscosity flowing layer when the matrix shrinks; and the modified polyester is restrained to directionally migrate towards the tip of the fiber microcrack, so that active closing and densification filling of the crack area are realized, micro holes in the repaired area are eliminated, and the mechanical continuity of the composition in a dynamic environment is kept.

The invention discloses modified chickpea starch and a preparation method and application thereof, and belongs to the technical field of food processing.The modified chickpea starch is obtained by adding oat beta glucan into chickpea starch, then conducting pretreatment on the chickpea starch, conducting extrusion treatment on the chickpea starch through a double-screw extruder, and cooling, drying and smashing an extruded sample; wherein the addition amount of the oat beta glucan is 3 to 15 percent; the temperature of the extrusion treatment is 80-120 DEG C. The chickpea starch is subjected to compound modification by adopting a twin-screw extrusion technology in cooperation with oat beta glucan, and a starch semi-crystalline layer is deeply destroyed to realize deep regulation and control of a multi-scale structure; meanwhile, the oat beta glucan and the starch form a hydrogen bond network, so that the problem of excessive modification of chemical modification is avoided, and the thermal stability, the shear resistance and the aging resistance of the starch are remarkably improved; no chemical reagent participates in the whole process, no chemical residue risk exists, and the method has the advantages of continuous production, large treatment capacity, low energy consumption and the like.

The utility model belongs to the MBR flat membrane production and manufacturing field, concretely relates to a hollow multi -flow channel support plate and membrane element, membrane stack of flat membrane special, the hollow multi -flow channel support plate includes the upper and lower two layers of perforated plate of corresponding arrangement, a plurality of partition is arranged at intervals between two layers of perforated plate, and the independent flow channel is formed between adjacent partition and perforated plate. The utility model has realized that flat membrane element outflow area effectively expands, membrane element packing density improves greatly, has reduced flat membrane's production cost and operating energy consumption simultaneously.

The invention relates to the technical field of photoelectric devices, and discloses an optical engine packaging structure and a preparation method thereof. The structure comprises an adapter plate structure, an electrical module, a first rewiring layer, an optical module and a packaging substrate, a containing space of the adapter plate structure comprises at least part of the thickness of the adapter plate structure, and a conductive structure is arranged in a penetrating mode in the thickness direction; the electrical module is arranged in the accommodating space and the front surface of the electrical module is exposed; the first redistribution layer is arranged on the adapter plate structure and is electrically communicated with the conductive structure and the electrical module; the optical module is arranged on the first rewiring layer, the front side faces the first rewiring layer, and an optical port is exposed to the external space and connected with an external optical device; the packaging substrate is arranged on the back surface of the adapter plate structure and is suitable for being electrically connected with the electrical module. According to the invention, the optical module is stacked on the electrical module, so that the warping is reduced, the signal transmission is improved, the packaging size is reduced, and the process is simple.

The application relates to a kind of graphite-like capacitor carbon and its preparation method and application, relate to carbon material technical field, solve the problem that the needle coke-based capacitor carbon in the activation pore-forming process of prior art is difficult to consider high specific surface area, layered ordered graphite structure keeps, pore size structure uniform control and continuous electric conduction network, leading to the specific capacitance, rate performance and cycle stability of material are limited.The application is by mixing needle coke powder and chemical activator, first activation is carried out by heating, and the activated product is obtained, and the intermediate product A is obtained by post-processing;Intermediate product A is mixed with catalytic activator, second activation is carried out by heating, and catalytic graphitization product is obtained, and the intermediate product B is obtained by post-processing;The intermediate product B is calcined to obtain graphite-like capacitor carbon by refining treatment.The graphite-like capacitor carbon provided by the application can be applied to the preparation of supercapacitors, and the synergistic balance between high specific surface area, high packing density, excellent conductivity and structural stability is realized.

The utility model discloses an automatic powder packaging production line, including the fixing frame, the fixed frame upper end face is equipped with the chute, the chute has the movable feed pipe in, the fixed frame upper end face is fixedly connected with electric telescopic link no.

The utility model discloses a kind of hydrogen purification devices, it includes 2 or more parallel hydrogen purification units, raw material main pipeline, purified hydrogen pipeline and relaxation separation tail gas pipeline, the hydrogen purification unit includes metal hollow fiber membrane assembly, heating component, the upper flange with gas outlet for discharging purified hydrogen, the intermediate flange with heat exchange jacket, and the shell with lower flange, the upper flange with gas outlet, the intermediate flange with heat exchange jacket and the shell with lower flange are connected airtight by nut, the shell with lower flange is located in the heating component. By adopting the hydrogen purification device of the utility model, crude hydrogen raw gas is first passed through heat exchange jacket before being purified using metal hollow fiber membrane assembly, heat exchange is carried out using heat exchange jacket, preheating of raw gas can be achieved, energy efficiency is improved, while helping to maintain system thermal balance, reducing equipment depreciation and operating risk caused by temperature fluctuation, enhancing the safety of the device.

A display module, a preparation method thereof, a display device and a mold. The display module comprises a display panel having a display side and a back side opposite to each other, the display panel comprising a display area, a bending area and a binding area, the bending area being connected with the display area and the binding area respectively, the bending area being bent into a curved surface towards the back side of the display panel, and the binding area being located on the back side of the display panel; the bending area is provided with a hole, one end of the hole being open on the display side of the display panel; a cover plate is covered on the display side of the display panel, the cover plate covering the display panel; a middle frame is surrounded on the periphery of the edge of the display panel and is in contact with the edge of the cover plate; a support fixing structure is located at least between the curved surface and the middle frame, and the support fixing structure covers at least part of the area on the outer side of the curved surface away from the display area of the display panel, and the support fixing structure covers one end of the hole.

The invention belongs to the technical field of silicon micro-powder, and particularly discloses silicon micro-powder for integrated circuit packaging and a preparation method thereof, the silicon micro-powder is multi-stage modified spherical silicon micro-powder, and the multi-stage modified spherical silicon micro-powder is prepared from basic spherical silicon micro-powder through modification processes of gradient alkali etching pore forming, bifunctional silane grafting and polyaryletherketone oligomer coating in sequence; in the basic powder purification step, precise purification of the industrial-grade silica powder is realized through a combined process of acid pickling, hydrofluoric acid shallow etching, water washing and drying. Wherein the diluted hydrochloric acid can remove metal cation impurities in the silica powder in a targeted manner, and the impurities are prevented from forming a conductive path in the subsequent packaging process, so that the dielectric loss is reduced, and the insulating property of the material is improved; and the shallow etching of the hydrofluoric acid dilute solution can peel off the surface silicon dioxide impurity layer, and meanwhile, the etching depth is controlled to avoid damaging the spherical structure of the silicon micro powder, so that the uniformity of the subsequent modification process is ensured, and a high-quality base material foundation is laid for the subsequent modification step.

The utility model relates to water treatment equipment field, a horizontal ceramic flat plate membrane component, including support foot square tube and frame square tube, frame square tube forms the frame structure of rectangle, and four support foot square tubes are located at the corner of frame structure respectively, four support foot square tubes and the inside of frame square tube intercommunication, one of support foot square tube is as water production pipeline, another of support foot square tube is as aeration pipeline, and the rest two support foot square tubes are closed, install several aeration pipes in frame structure, and the inside of frame square tube is connected with the aeration pipe and the end, install the membrane group guard board of four periphery frames on frame structure top, install several ceramic membrane sheets in the inside vertical of membrane group guard board enclosure, and every ceramic membrane sheet all is provided with water collecting port, and the water collecting port is connected with water production pipeline through frame structure, the ceramic flat plate membrane component improves the pollution resistance, easy maintenance, structural stability, and high loading density.

This invention provides a method for preparing high bulk density potassium peroxymonosulfate composite salt. Through multi-dimensional process optimization including multi-point feeding and neutralization, ultrasonic action, crystal guiding agent, heating-heating-heating-cooling, and drying-mixing-sieving, the bulk density of PMS is synergistically improved, and the overall performance of the final product is superior to that of the prior art.

The application discloses a TGV interlayer-copper paste interconnection-high thermal conductivity and low loss insulation material collaborative packaging structure for three-dimensional integrated circuit packaging and a preparation method thereof, and belongs to the technical field of advanced electronic packaging materials. The structure comprises a TGV glass interlayer with low dielectric and adjustable thermal expansion coefficient, a high-uniformity metal interconnection structure formed by filling and sintering of functional copper paste, and a high-thermal-conductivity and low-loss insulation packaging layer. Through collaborative design of the interlayer material, the copper paste interconnection material and the insulation packaging material, excellent high-frequency electrical performance, thermal management performance and structural reliability can be realized. The application has simplified process and controllable cost, and is suitable for three-dimensional packaging application scenarios such as AI accelerators, high-performance computing, radio frequency front ends and heterogeneous integration.

The application refers to Fe-Ni / polysulfone inorganic-organic hollow fiber hybrid membrane and a preparation method thereof, including a preparation process: step 1: dissolving polysulfone in an organic solvent and adding an additive, stirring to form a uniform solution; then adding 0.5% to 30% of Fe and Ni metal powder by mass ratio under stirring to obtain a spinning solution; step 2: mixing pure water and a polar solvent according to a certain ratio to form a uniform solution, obtaining an inner coagulation bath; step 3: transferring the spinning solution to a liquid supply tank after vacuum degassing, quantitatively and constantly conveying to a spinneret, at the same time, quantitatively and constantly conveying the inner coagulation bath into the spinneret, the spinning solution passing through an air gap and entering an outer coagulation bath, the hollow fiber membrane being coagulated and formed under the action of the inner / outer coagulation bath, being washed by pure water and dried to obtain the Fe-Ni / polysulfone hollow fiber membrane, which has a typical asymmetric structure, high mechanical strength and good biocompatibility, can significantly improve the hydrophilicity of the membrane and can also enhance the protein contamination resistance of the membrane.

This invention provides a small, long-tailed solid rocket motor, comprising a combustion chamber shell, a combustion chamber insulation layer, a propellant charge, an adjusting pad, a long tailed tube shell, a long tailed tube insulation layer, a nozzle shell, a nozzle insulation layer, a graphite throat liner, a plug, an electrode wire plug, a blunt-sensitive igniter, a pressure testing port plug, a connector mounting plate, and a short-circuit head. The propellant charge and adjusting pad are sequentially placed within the combustion chamber. The nozzle shell and long tailed tube shell are screwed together internally and externally. The blunt-sensitive igniter, via the electrode wire plug, connector mounting plate, and short-circuit head, is mounted on the side of the handle rib of the long tailed tube shell to provide short-circuit protection. The long tailed tube shell and combustion chamber shell are then assembled into the complete motor. This invention features high space utilization and minimal change in the center of gravity, resulting in a more rational structural layout.

The utility model discloses a packaging structure for a chip, which comprises an electric connection limiting frame, an electric connection clamping groove is arranged in the electric connection limiting frame, the electric connection clamping groove is arranged in four inner walls, the outer part of the electric connection clamping groove is communicated with a plurality of electric connection jacks, and the plurality of electric connection jacks are respectively arranged in four side walls of the electric connection limiting frame. Through the combination of the electric connection limiting frame and the lamination limiting frame, the modular packaging of the integrated chip is realized, the design facilitates the installation, replacement and expansion of the integrated chip, the flexibility and maintainability of the packaging are improved, the multi-layer lamination of the integrated chip can be realized through the increase and decrease of the lamination limiting frame, and the packaging efficiency is improved. The structural design is suitable for application scenes needing high integration, the packaging density and the space utilization rate are effectively improved, the connecting lines are etched in the connecting pole pieces, customized design can be carried out according to the connecting requirements of different types of integrated chips, and the compatibility and adaptability of the packaging structure to different chips are improved through the design.

The invention relates to the technical field of aluminum-based composite material preparation, in particular to a ceramic reinforced aluminum-based workpiece and a preparation method. The ceramic reinforced aluminum-based workpiece is prepared by the method. The method comprises the steps that a forming die is assembled and filled with aluminum-based composite powder; sintering the forming die filled with the aluminum-based composite powder in an inert atmosphere to obtain a sintered green body; performing die forging treatment on the sintered green body to obtain a prefabricated green body; and after the prefabricated blank is machined to the size of a finished product, the prefabricated blank is sequentially subjected to solution treatment and aging treatment, and the ceramic reinforced aluminum-based workpiece is obtained. By means of the method, the ceramic reinforced aluminum-based workpiece with the large length-diameter ratio can be prepared, and the problems that cracks are generated when a formed blank is not separated from the female die, and layering and fragmentation are generated in the demolding process are solved.

The utility model belongs to the MBR flat membrane manufacturing field, concretely relates to a kind of MBR flat membrane supporting element.The supporting element includes support layer and surface layer, surface layer is arranged on the outer surface of support layer, and hole is equipped on surface layer;The support layer is net structure.The utility model is used to make membrane element, can improve water flux, reduce membrane element thickness and production cost.

The application belongs to the field of membrane separation technology, and particularly relates to a novel high desalination rate anti-pollution reverse osmosis membrane material and a preparation method thereof. The preparation method comprises the following steps: contacting a porous support membrane with an aqueous solution containing mixed polyamine monomers and amine-modified nano-silicon dioxide, and then interfacially polymerizing with an oil phase solution containing mixed polyacyl chloride monomers to form a polyamide separation layer; then coating a sulfonated polyether sulfone coating solution to form a first modified layer; and finally coating a reaction solution containing modified polyethyleneimine, carboxylated graphene oxide and a crosslinking agent to form a second modified layer. By compounding aromatic and alicyclic polyamines, and combining amine-modified nano-silicon dioxide anchored in the polyamide network to form a dense separation layer, high desalination rate is ensured; by chemical bonding between the sulfonated polyether sulfone layer and the modified polyethyleneimine / carboxylated graphene oxide / crosslinking agent layer, a stable double-layer modified structure is constructed, and excellent anti-pollution performance is given to the membrane surface. The obtained membrane material has high desalination rate, strong anti-pollution property and stable structure.

The utility model discloses a kind of silicon powder compaction conveying equipment, it is related to silicon powder production technical field, including the sealing assembly of being located in cylinder and the material bag with upper and lower bag mouth, sealing assembly includes the fixed block of being located in cylinder and moving block, moving block is oppositely arranged with fixed block and can be similar or adjacent action to fixed block, material bag is located between moving block and fixed block and its two sides are connected with moving block and fixed block, to when moving block is similar action to fixed block and is abutted with fixed block, material bag bag mouth is sealed, the sealing assembly is set to two groups and is arranged in upper and lower state, to make the upper and lower two bag mouths of material bag can be sealed.The utility model realizes the independent sealing control of material bag two ends by the collaborative design of upper and lower double sealing assembly, moving block and fixed block cooperation can complete the accurate closure of bag mouth, ensure the sealing reliability of silicon powder packaging process, compaction movement design between two sealing assemblies of pressing plate, material bag can be compacted after sealing, effectively improve powder filling density.

This invention discloses a small-size BGA SSD packaging structure and method based on TMV and vertical wire bonding. The invention relates to the field of semiconductor packaging technology and includes: a substrate; an RDL layer disposed parallel above the substrate, the distance between the RDL layer and the substrate not exceeding a first predetermined distance; multiple chips stacked alternately on the substrate, with gold wires soldered to the chips perpendicularly upwards to the RDL layer; and a first component with its pads facing upwards on the substrate, the pads connected to the RDL layer via vertically upward-facing copper pillars. This invention ensures that the gold wires are perpendicular to the substrate or chips, avoiding the problems of uneven or interlaced wire bonding caused by safety distances. Furthermore, the use of TMV technology allows multiple components to be stacked, contributing to higher packaging density and further reducing package size.

The utility model provides a powder metallurgy mould with powder anti -fly structure relates to powder metallurgy mould technical field, solved the powder metallurgy mould of commonly used in the use process, usually do not have good anti -fly structure, because material is in powder shape, when putting into the mould and processing, material can be affected and appear fly phenomenon, and then cause material waste's problem. A kind of powder metallurgy mould with powder anti -fly structure, it include: the fixed base one side is fixedly installed with connecting side seat;The connecting side seat top is slidably provided with storage tank;Through the setting of storage tank, by starting the down pressure cylinder on storage tank, its piston rod drives down pressure plate to move downward with constant pressure, and accurate pre -pressing force is applied to loose material, this step not only eliminates the gap between material, also improves filling density, effectively inhibits material fly, reduces raw material loss and maintains workshop environment clean.

The invention discloses a drawing frame winding forming mechanism and an intelligent control method thereof, and relates to the technical field of spinning, the drawing frame winding forming mechanism comprises a base, a translation mechanism, a clamping mechanism and a rotating mechanism, the translation mechanism is installed in the base, and the clamping mechanism and the rotating mechanism are both installed on the translation mechanism; the clamping mechanism is arranged on the outer side of the rotating mechanism; the translation mechanism comprises a dragging box, a lapping plate, a belt transmission unit, a driving part and a sensing unit; the invention further discloses an intelligent control method of the drawing frame winding forming mechanism. According to the winding forming mechanism of the drawing frame, through servo cooperation and program control, accurate dynamic laying of a cotton sliver track can be achieved through an optimized high-density space filling curve, the space filling rate in a can and the stability of a winding structure can be remarkably improved, the can changing frequency is reduced, and the production efficiency is improved; and the system has the advantages of flexible process, intelligent adjustability, reliable operation, simplicity and convenience in maintenance and the like, and provides key support for continuous and automatic production.