125results about How to "Good molding effect" patented technology

The utility model discloses a stomatological moisture-proof former, which belongs to the technical field of medical instruments and comprises a first dental arch plate, a second dental arch plate is mounted on the outer side of the first dental arch plate, and both the first dental arch plate and the second dental arch plate are formed by compression molding of medical transparent thermoplastic polyurethane materials. Positioning assemblies used for assisting in fixing the two dental arch plates are installed at the two ends of the outer sides of the first dental arch plate and the second dental arch plate, a fixing block is fixedly connected to the rear side of the middle of the outer wall of the second dental arch plate, a threaded rod is rotationally connected to the middle of the outer wall of the first dental arch plate, and the tail end of the threaded rod is in threaded connection to the inner wall of the fixing block; the distance between the first dental arch plate and the second dental arch plate can be adjusted by driving the fixed block to move through the threaded rod, and meanwhile, the two dental arch plates and the moisture insulation pad can be stably fixed on the two sides of teeth by matching with the positioning assembly, so that the moisture insulation and forming effects on a tooth area are improved.

The application belongs to the technical field of functional polymer materials, and particularly relates to an antistatic water-absorbing polypropylene-based material and a preparation method and application thereof. The antistatic water-absorbing polypropylene-based material comprises, in mass fraction, 24-33% of polypropylene (PP), 5-20% of a PP-g-X graft copolymer, and 56-63% of a molecular sieve, wherein the molecular sieve is dispersed in a continuous phase composed of the PP and the PP-g-X; X in the PP-g-X graft copolymer represents a polyethylene glycol derivative graft segment, and a grafting rate is 0.2%-0.7%; and the average particle size of the molecular sieve is 1-10 microns. Compared with the prior art, the polyethylene glycol segment in the application has strong hygroscopicity, can actively absorb and fix trace water vapor in the package, has a similar "self-drying" effect, and reduces the internal equilibrium relative humidity of the package; the physical adsorption cavity provided by the molecular sieve and the chemical water absorption of the PP-g-X produce a synergistic effect, provide an ion conduction path for static charges, and improve the antistatic performance.

The application provides a kind of based on multi-muscle deep cavity belt flat plate forming system, including transport device one and transport device two, preheating mechanism, auxiliary forming mechanism and punching equipment are arranged between transport device one and transport device two, the main role of auxiliary mould device in the operation process is that skin material can be quickly and fully adhered to the cavity in mould, so that pocket forming is more square, sufficient, and the strength of pocket forming for multi-muscle or multi-cavity structure is higher;It can effectively improve the forming effect and strength of multi-cavity and pocket deep belt product, so that the skin material will be pressed by the auxiliary mould during forming, and the pressure during blowing is more concentrated, which is beneficial to the blow molding of the softened skin material after heating.The stress of pocket bottom is uniform, the forming effect is good, and the strength of the formed pocket is high, and deformation is not easy to occur.

The present application relates to the technical field of bamboo fiber composite material, in particular to a purification preparation method of bamboo fiber reinforced natural polymer composite material. The bamboo raw material is crushed and treated by steam explosion to obtain primary bamboo fiber; the primary bamboo fiber is sequentially subjected to organic solvent dewaxing treatment and oxidation system selective delignification treatment to obtain purified bamboo fiber; the purified bamboo fiber is treated in a tannin acid solution to form a polyphenol interface layer on the surface thereof; and a solution containing polyvalent metal ions is added to the treated bamboo fiber to form a coordination cross-linking interface layer on the surface of the bamboo fiber. The present application constructs a stable interface layer between the fiber and the natural polymer matrix. The interface layer can effectively transfer stress, significantly improve the tensile strength, bending strength and shear strength of the composite material, and solve the problem of weak interface and easy delamination of traditional natural composite materials.

This invention discloses a polyimide aerogel exhibiting thermotropic liquid crystal behavior and its preparation method, belonging to the field of polymer aerogel materials. The polyimide aerogel exhibiting thermotropic liquid crystal behavior of this invention has a thermal conductivity of 0.07–0.08 W / m² at room temperature. ‑ 1 K ‑1 The thermotropic liquid crystal-like polyimide aerogel is obtained by directional freezing, thermal crosslinking, and imidization of an aqueous solution of polyamic acid. This thermotropic liquid crystal-like polyimide aerogel possesses advantages such as low density, high porosity, relatively high thermal conductivity, and structural stability. It fills the gap in the application of liquid crystal polyimide materials in the aerogel field, improves the thermal conductivity of polyimide aerogels, and provides a foundation for the application of polyimide aerogel materials in the field of high-temperature intelligent deformable materials.

This application relates to an integrated ridging and fertilizing machine, comprising a rotary tiller and a ridging cover located at the rear end of the rotary tiller. The upper end of the rotary tiller has a fertilizer box for holding fertilizer, and the fertilizer box contains a feeding mechanism. The front end of the fertilizer box has a discharge pipe communicating with its interior, and the discharge pipe's discharge point is located in front of the rotary tiller. The feeding mechanism is used to transport the fertilizer from the fertilizer box to the discharge pipe. This application, by integrating the fertilizer box and feeding mechanism onto the rotary tiller and setting a discharge pipe in front of the rotary tiller, achieves precise and uniform fertilizer application before rotary ridging.

The application provides a high-refraction cycloolefin copolymer and a preparation method thereof, and has a structure of formula I. The cycloolefin copolymer can obtain a cycloolefin copolymer resin with high thermal stability due to high steric hindrance of the cycloolefin monomer. The refractive index of the cycloolefin copolymer resin is greatly improved due to R3 and R4 on the cycloolefin monomer, and is first broken through to above 1.70, while maintaining high light transmittance of 91.0-96.0%, extremely low water absorption (<0.01%), and a glass transition temperature of 219 DEG C. The application prepares the cycloolefin copolymer resin with high activity, adjustable molecular weight and glass transition temperature by adjusting the reaction conditions. The copolymer resin has high refractive index, high light transmittance, heat resistance, low birefringence and moisture absorption, excellent fluidity, moldability and dimensional stability.

A method for producing a steel sheet, the method comprising the following successive steps: - providing a cold-rolled steel sheet, the chemical composition of the steel containing in weight %:0.15% ≤ C ≤ 0.23%, 1.4 % ≤ Mn ≤ 2.6%, 0.6% ≤ Si ≤ 1.5%, 0.02% ≤ Al ≤ 1.0%, with 1.0% ≤ Si+Al ≤ 2.0%, 0 ≤ Nb ≤ 0.035%, 0 ≤ Mo ≤ 0.3%, 0 ≤ Cr ≤ 0.3%,the remainder being Fe and unavoidable impurities, - annealing the steel sheet at an annealing temperature TA comprised between Ac1 and Ac3 so as to obtain a structure comprising at least 40% of austenite and at least 40% of intercritical ferrite, - quenching the sheet from a temperature of at least 600°C at a cooling rate of at least 20°C / s down to a quenching temperature QT comprised between 180°C and 260°C, - heating the sheet up to a partitioning temperature PT between 375°C and 470°C and maintaining the sheet at this partitioning temperature PT for a partitioning time Pt comprised between 25s and 440s, the partitioning time Pt being comprised between 100s and 440s if the partitioning temperature PT is comprised between 375°C and 400°C, and comprised between 25s and 150s if the partitioning temperature PT is comprised between 450°C and 470°C, - cooling the sheet down to the room temperature, the steel sheet having a final microstructure consisting, in area fraction, of: - at least 11% of tempered martensite, - between 10% and 20% of retained austenite, - between 40% and 60% of ferrite, - at most 6% of fresh martensite, - at most 18% of bainite.

The utility model provides a kind of formwork for station internal stand column diameter expansion construction, including steel hoop assembly and wooden formwork assembly;The wooden formwork assembly includes two semicircular templates, and two semicircular templates are formed into a whole circle by surrounding and splicing;The template includes melamine board layer, plywood layer, support batten layer and assembled batten layer from inside to outside in turn;The melamine board layer and plywood layer are fixed by adhesive method, for making the template inner surface even;The support batten layer is arranged around the outer periphery of the plywood layer by adhesive method, for whole circle support;The assembled batten layer is wrapped outside support batten layer for constraining the overall shape of the template;The steel hoop assembly includes a pair of semicircular steel hoops arranged in pairs, a pair of semicircular steel hoops are used for locking outside wooden formwork assembly, and each steel hoop assembly is arranged equidistantly along the length direction of wooden formwork assembly.The template has the advantages of improving construction efficiency and ensuring the appearance quality after stand column diameter expansion.

This invention discloses a CFG pile head-cutting-free device and its usage method. The CFG pile head-cutting-free device includes a pressing mechanism, a closing mechanism connected to the bottom of the pressing mechanism for separating the top of the CFG pile from the excess CFG pile head, and a closing rod mechanism connected to the bottom of the closing mechanism for opening or closing the closing mechanism. After the CFG pile is poured and the pipe is pulled out, the closing mechanism opens and is embedded in the CFG pile by the pressing mechanism. The closing mechanism is located at the elevation of the top of the CFG pile. The closing mechanism is closed by operating the closing rod mechanism, thereby achieving the separation of the CFG pile from the pile head. This invention can be prefabricated in a factory or on-site according to different pile diameters and user requirements, and is not limited by pile diameter. Devices of different heights can be manufactured depending on the difference in elevation between the working surface and the designed pile top elevation during construction.

The present application relates to the technical field of dairy by-product deep processing, and discloses a cheese whey sugar and a manufacturing method thereof. The cheese whey sugar is made of the following raw materials in parts by weight: whey 15-60 parts, white granulated sugar 5-30 parts, glucose syrup 2-10 parts, cheese powder 1-5 parts, and citric acid 0.1-0.5 parts. The preparation steps include four processes of whey preparation, whey nanofiltration, cheese whey syrup boiling, and cooling, shaping and packaging. The present application takes cheese processing by-product whey as the main raw material, and is matched with cheese powder to give the product a rich cheese fragrance. The segmented temperature control boiling process optimizes the physicochemical properties of the syrup. The prepared cheese whey sugar is sweet and sour, has pure cheese aroma, delicate texture, and is not sticky, has complete block shape and uniform color, does not contain additional artificial pigment and preservative, fully retains whey protein, lactose and mineral nutrients in the whey, has both nutritional value and leisure food edible properties, and has a good market application prospect.

The invention provides a fluorescent zirconia composition and a preparation method and application of a fluorescent zirconia porcelain block. The fluorescent zirconium oxide composition is prepared from the following components in percentage by mass: 90 to 95 percent of inorganic powder, 3 to 10 percent of organic matter and 1 to 5 percent of fluorescent component. Wherein the inorganic powder comprises zirconium oxide, hafnium oxide, aluminum oxide, yttrium oxide, titanium oxide and manganese oxide. The organic matter comprises a dispersing agent, an adhesive, a plasticizer and a defoaming agent. The fluorescent component comprises cerium oxide, iron oxide and erbium oxide. Through mutual cooperation of the components, the obtained fluorescent zirconia ceramic block has a fluorescent effect and enhanced toughness at the same time. Moreover, the preparation method disclosed by the invention is simple, convenient to operate and suitable for large-scale industrial production.

The present application belongs to the technical field of preparation of multi-curved surface silicon carbide, and discloses a preparation method of reaction sintering multi-curved surface silicon carbide whole plate, comprising: mixing 100 parts of alpha-SiC powder, 15-20 parts of composite carbon source, 1-2 parts of silicon carbide fiber, 2.3-3.8 parts of dispersing agent, 8-12 parts of water-soluble phenolic resin, 2-4 parts of additive and 42-46 parts of water according to weight parts, pre-dispersing, ball-milling, spray granulating, pressing into multi-curved surface green body; the green body is stacked with graphite support parts and filled with graded silicon particles, and is subjected to step-by-step degreasing and step-by-step reaction sintering under vacuum argon, and then is cooled after temperature control to obtain the product. Through the synergistic effect of formula control of composite carbon source, specific ternary additive and fine sintering process, the technical problem of sintering cracking and cracking of multi-curved surface whole plate is eliminated, and the product density, bending strength and fracture toughness are effectively improved.

This invention discloses a waste recycling device for FIBC (Flexible Intermediate Bulk Container) processing, relating to the field of comprehensive environmental utilization of solid waste. The device includes a hollow frame, a hydraulic rod mounted on the hollow frame, and a pressure plate mounted on the hydraulic rod. The equipment continuously feeds FIBC waste into a flattening machine. The pressure plate is automatically triggered by the weight of the waste, achieving a complete automatic cycle of feeding, weighting, triggering, compaction, resetting, and locking, thus improving waste recycling efficiency. When not in operation, the pressure plate is rigidly limited by a limiting mechanism, preventing hydraulic system depressurization or accidental drop. This ensures uniform compaction density of the plastic waste, reducing the mixing and adhesion of plastic and impurities due to insufficient compaction, facilitating subsequent separation of plastic from other components. It also protects core components such as the hydraulic rod and pressure plate, extending equipment lifespan, reducing maintenance costs, and contributing to the resource-based recycling of plastic waste and comprehensive utilization of solid waste.

This invention discloses a flat wire twisting and cross-protection wire insertion device. Its key feature is that a lower protective tooth sliding plate is fixed to an external device. The lower protective tooth sliding plate is sequentially equipped with a lower protective tooth turntable, a turntable, an upper protective tooth turntable, and an upper protective tooth sliding plate. The upper protective tooth sliding plate is fixedly connected to the protective tooth sliding plate. A front-and-back movement cylinder drives the two layers of protective teeth to move back and forth along the turntable's trajectory. After reaching the required stroke, a cross-movement cylinder and a winch structure cause the two layers of protective teeth to cross-move under the drive of the turntable. This achieves clear layering of the flat wire before twisting, precise insertion, and significantly improves the flat wire twisting yield. The insertion device of this invention has the advantages of convenient adjustment, precise and reliable operation, high insertion success rate, greatly improved automation, and reduced labor costs.

The utility model relates to the technical field of plastic molds, and discloses a multi-cavity synchronous demolding plastic mold which comprises a lower mold base, a cavity is formed in the lower mold base, a lifting assembly is arranged in the cavity, a plurality of jacking columns are connected to the top of the lifting assembly, a plurality of forming grooves are formed in the top of the lower mold base, the jacking columns penetrate through the forming grooves, and the lifting assembly is arranged in the cavity. A vibration motor is fixedly connected to the middle of the bottom of the lower die base, an upper die base is arranged on the top of the lower die base, a plurality of sealing blocks are fixedly connected to the bottom of the upper die base and correspond to the forming grooves, and mounting groove blocks are fixedly connected to the two sides of the upper die base. According to the mold, plastic in the forming groove can be cooled through water flowing circularly in the cooling pipe, rapid demolding is facilitated, the lifting plate can be controlled to ascend and descend in the cavity in cooperation with the lifting assembly, and therefore the multiple ejection columns can be driven to penetrate through the forming groove at the same time, and a formed plastic product is ejected out.

The invention relates to a reinforcement structure (10) comprising: - at least one elevation reinforcement profile (12) extending along an elevation direction (z), said elevation reinforcement profile (12) delimiting an elevation cavity; at least one transverse reinforcement profile (14) extending along a transverse direction (t), substantially perpendicular to the elevation direction (z), - and at least one compartment panel (16) extending against the elevation reinforcement profile (12) and the transverse reinforcement profile (14). The reinforcement structure further includes at least one reinforcement element (46) extending along at least a portion of the elevation reinforcement profile (12) between said elevation reinforcement profile (12) and said compartment panel (16), said reinforcement element (46) being made of a material having a tensile strength greater than the tensile strength of the material forming the elevation reinforcement profile (12).

The application relates to the field of food processing equipment, in particular to a lotus root powder and mung bean cake forming device, which comprises a machine box, a dough feeding port, a sandwich feeding port, a first conveying device, a second conveying device, a wrapping device, a cutting and edge collecting mechanism, a conveying belt and a lifting mechanism. The cutting and edge collecting mechanism is used for realizing accurate cutting and shearing edge collecting of the strip-shaped cake embryo, and ensures that the sandwich is completely wrapped in the dough; the lifting mechanism can lift the conveying belt to flatten the shearing edge, and improves the forming effect. The application can efficiently and stably produce the sandwich cake embryo, significantly improves the qualified rate and production efficiency of the product, is compact in structure, simple in operation and suitable for large-scale industrial production.

This utility model discloses a waste gas recycling device for rigid PVC foam boards. This device aims to solve the technical problem that existing technologies cannot directly recover hot airflow or utilize hot airflow to heat the medium according to needs, thus failing to meet the requirements of different scenarios. It includes a lower chamber and an upper chamber. An activated carbon filter layer is detachably connected inside the upper chamber. The lower chamber has multiple layers of heat-conducting pipes arranged in its inner cavity, with the ends of these pipes interconnected. The other ends of the uppermost and lowermost heat-conducting pipes respectively penetrate the lower chamber. A waste gas inlet assembly is installed on the top surface of the upper chamber. This utility model allows for the selection of directly recovering hot airflow or utilizing hot airflow to heat the medium according to needs, offering high flexibility in use.

This invention relates to the field of electronic packaging composite materials technology, and particularly to a thermally conductive epoxy encapsulation material, its preparation method, and its application. The invention uses Fe3O4 nanospheres and sodium polyacrylate solution as raw materials to prepare polyacrylic acid-modified Fe3O4 nanospheres; these are then blended with adipic acid and epoxy resin, and a thermally conductive epoxy encapsulation material is prepared through a curing reaction. The thermally conductive epoxy encapsulation material prepared by the method of this invention exhibits uniform dispersion of Fe3O4 nanospheres, good interfacial compatibility, and high thermal conductivity, demonstrating excellent thermal conductivity, interfacial reliability, and mechanical properties, making it well-suited for electronic chip packaging applications.

The utility model discloses a pre-foaming foamed plastic storage cage, which belongs to the technical field of foamed plastic production equipment, and comprises a mounting frame, a heightening frame is fixedly arranged on the mounting frame, gauze is fixedly arranged around the mounting frame and the heightening frame, and the gauze is annular; a discharging hopper is fixedly arranged at the bottom of the mounting frame, a discharging valve is fixedly arranged on the discharging hopper, a ventilation pipe is fixedly arranged on the discharging hopper, and the ventilation pipe is placed in a heightening frame; a plurality of ventilation openings are formed in the ventilation pipe, an end plate is fixedly arranged at the end, away from the discharging hopper, of the ventilation pipe, a filter screen is fixedly arranged at the end, close to the discharging hopper, of the ventilation pipe, and an air heater is fixedly arranged on the mounting frame; and an air outlet of the hot-air blower is connected to one end, provided with the filter screen, of the ventilation pipe. The storage cage has the advantage that the humidity of the pre-foamed plastic particles in the storage cage is reduced.

The application discloses a chromium-free inorganic surface treatment agent for galvanized steel plate, which contains 11.5-15% of total solid content in mass percentage in an aqueous solution, and components of the total solid content are as follows: a compounded silane coupling agent A, which accounts for 45-65% of the total solid content in mass percentage; a surface modified water-based silica sol B, which accounts for 25-45% of the total solid content in mass percentage; a water-soluble phosphorus-containing compound C, which accounts for 0.5-1% of the total solid content in mass percentage of phosphorus element; a water-soluble fluorine-containing compound D, which accounts for 1-6% of the total solid content in mass percentage of fluorine element; and a lubricating aid E, which accounts for 1-10% of the total solid content in mass percentage; wherein the compounded silane coupling agent A is compounded by four types of silane coupling agent monomers, i.e., a silane A1 with an epoxy group, a silane A2 with a mono-amino group, a silane A3 with an alkyl group and a silane A4 with a vinyl group.

The invention discloses an iron-silicon-chromium alloy composite material with high magnetic conductivity and low loss and a preparation method thereof, and the preparation method comprises the following steps: the main component comprises the following components in percentage by mass: 95-99.5% of iron-silicon-chromium alloy powder; and 0.5%-5% of inorganic nano aluminum oxide. The preparation method comprises the following steps: carrying out wet ball milling treatment on Fe-Si-Cr magnetic powder and nano aluminum oxide by adopting a mechanical alloying method, drying after treatment to obtain a mixed dry material, adding epoxy resin glue into the mixed dry material, and finally carrying out dry-wet granulation to obtain a target product, namely the Fe-Si-Cr alloy composite material. According to the invention, through the process combination of mechanical alloying and granulation, an insulating system compositely coated with inorganic nano aluminum oxide and epoxy resin is obtained, and firm coating of an insulating layer and good formability of composite powder are realized, so that the magnetic conductivity of the alloy is greatly improved, the loss of the alloy is reduced, the magnetic conductivity of the alloy is 43.2 at-100 kHz, and the loss of the alloy is 328.8. A soft magnetic composite material solution with excellent comprehensive performance is provided for related industries, and the requirements for integration and reliability in the fields of integrally-formed inductors, transformers and the like are met.

This invention belongs to the field of toothpaste technology, specifically relating to a compound honeysuckle herbal toothpaste for treating oral ulcers and dental caries, and its preparation method. The toothpaste contains the following ingredients: honeysuckle extract, angelica dahurica extract, bletilla striata extract, licorice extract, cellulose gum, sorbitol, sodium monofluorophosphate, sodium benzoate, hydrated silica, sodium lauryl sulfate, sodium saccharin, and deionized water. The preparation process includes ultrafine grinding, two water extractions, low-temperature concentration, and graded filtration to prepare the herbal extracts, which are then mixed and homogenized with a matrix to obtain a stable gel paste. This process improves the extraction of beneficial components from the herbal extracts and achieves synergistic effects on multiple targets. This novel formulation has been demonstrated in rat oral ulcer experiments to significantly reduce ulcer diameter, accelerate healing, and reduce irritation. It has a mild and safe effect on the oral mucosa and is suitable for daily care in people prone to oral ulcers and those with sensitive mouths. This invention has a scientifically formulated, stable, and effective formula with promising application prospects.

This invention relates to the field of packaging machinery technology, and more particularly to a mesh bag threading machine, comprising: a mesh bag opening support assembly, wherein the opening edge of the mesh bag can be fitted onto the mesh bag opening support assembly; a mesh bag folding assembly, which can drive the opening edge of the mesh bag on the mesh bag opening support assembly to fold and deform; and a threading assembly, which can drive the rope to pass through the folded and deformed opening edge of the mesh bag. The mesh bag threading machine provided by this invention reliably positions and supports the opening of the mesh bag by setting the mesh bag opening support assembly, and automatically folds and shapes the opening edge in conjunction with the mesh bag folding assembly, and then automatically threads the rope in conjunction with the threading assembly. This allows the opening, folding, and threading processes to be connected in an orderly and continuous manner, thereby significantly improving the automation level of the processing process and the overall production efficiency, reducing manual intervention and operational errors; at the same time, the coordinated cooperation of each functional module helps to ensure the consistency of the mesh bag opening shaping and the threading position, improving the stability of product processing quality.

The utility model provides a connecting structure of a vehicle and the vehicle, the connecting structure of the vehicle comprises an outer plate assembly, an inner plate assembly and a reinforcing plate arranged between the inner plate assembly and the outer plate assembly, and the inner plate assembly and the reinforcing plate are connected through a first welding mark to form an inner plate assembly; the outer plate assembly is connected to the side, where the reinforcing plate is located, of the inner plate assembly. In the assembling process, the inner plate assembly and the reinforcing plate are firstly assembled into the inner plate assembly, then the outer plate assembly and the inner plate assembly are connected together, and finally the outer plate assembly is assembled, so that the mounting position of the outer plate assembly can be adjusted through fine adjustment when the outer plate assembly is assembled, and the gap and the surface difference between the decorating part and the outer plate assembly are reduced; and therefore, the forming effect after the vehicle is assembled is improved.

The utility model discloses a single-die BFS device which comprises a main die, a head die and vacuum channels facilitating vacuumizing treatment, a plurality of bottle body forming cavities used for forming bottle bodies are formed in the main die, and a plurality of head die forming cavities and at least two vacuum channels which are independently arranged are formed in the head die. A plurality of vacuumizing holes are formed in the bottle body forming cavity and / or the head mold forming cavity, each vacuumizing hole in the bottle body forming cavity is connected with one vacuum channel, and each vacuumizing hole in the head mold forming cavity is connected with the other vacuum channel. According to the single-mold BFS device disclosed by the utility model, at least more than two vacuum channels which are independent from each other are arranged, so that different areas in the mold can be vacuumized independently, the vacuum degrees required by different areas of an ampoule bottle can reach the standard, and the forming effect is good; the multiple vacuumizing holes are formed to be connected with the vacuum channel for vacuumizing, so that vacuumizing in the same area is more uniform, and the forming consistency is high.

The utility model discloses an arc composite edge collecting spare, including aluminium square tube, a plurality of aluminium skin fixed shape subassembly are connected with on the aluminium square tube, the upper end surface of aluminium skin fixed shape subassembly is pasted with aluminium skin, aluminium skin fixed shape subassembly includes the aluminium square sleeve of being connected with on the aluminium square tube, the left and right sides of aluminium square sleeve are equipped with the support aluminium rib symmetry, the support aluminium rib includes the flat plate of being connected with aluminium skin flange, is used for supporting the arc plate of aluminium skin web. The present application is combined to form the framework through aluminium square tube and aluminium skin fixed shape subassembly, utilizes the method of skin to realize the round angle effect at the corner edge collecting place, and the processing is simple, and the forming effect is good.

The invention relates to the technical field of traditional Chinese medicine and health food, in particular to a composition for assisting in improving memory, application and a preparation. The composition for assisting in improving the memory comprises the following components in parts by weight: 2-9 parts of ginseng, 2-9 parts of ligusticum wallichii, 3-10 parts of gastrodia elata and 0.2-0.8 part of a ginkgo leaf extract. The preparation method of the composition comprises the following steps: adding water into gastrodia elata for extraction, filtering to obtain medicine residues and an extracting solution, concentrating the extracting solution, adding ethanol for fractional precipitation, and merging precipitates to obtain gastrodia elata polysaccharide; adding the medicine residue, ginseng and ligusticum wallichii into ethanol, extracting, filtering, concentrating under reduced pressure, and drying to obtain extract powder; and finally, mixing the gastrodia elata polysaccharide, the extract powder and the ginkgo leaf extract. Exploration is carried out on extraction methods of all the components, and efficacy experiments prove that the finally prepared composition has a remarkable memory improving effect.

The present application provides a radical polymerizable resin composition which is excellent in moldability and curing property and also excellent in workability. The radical polymerizable resin composition contains urethane (meth) acrylate (A) having a structural unit derived from 1,6-hexamethylene diisocyanate and a structural unit derived from 2-hydroxyethyl methacrylate, the urethane (meth) acrylate (A) being a crystalline urethane (meth) acrylate, and contains a radical polymerization initiator (C) and an N-oxyl compound (D), the content of the N-oxyl compound (D) being 0.20 to 0.60 parts by mass per 100 parts by mass of the urethane (meth) acrylate (A).