36results about How to "Fast impregnation" patented technology

A fiber-reinforced composite structure has two molded outer polymeric layers spaced apart from each other and defining a cavity therebetween. Each molded outer polymeric layer defines a sealing surface extending about a periphery of the respective layer, and the opposing sealing surfaces cooperate to define a hermetic seal extending about a periphery of the cavity. One or more multi-directional fiber reinforcement layers are adhesively attached in a discontinuous manner to each outer polymeric layer, and define a first region of the cavity extending between each respective outer polymeric layer and adjacent fiber reinforcement layer, and a second region of the cavity extending between the fiber reinforcement layers. A core is located between the two outer polymeric layers, and is made of a resinous core material capable of exhibiting a foamed character and a resinous character. The resinous core material has a blowing agent activatable upon exposure to a predetermined vacuum pressure within the cavity to convert the core material within the second region of the cavity from a resinous character to a foamed character and thereby fill the second region of the cavity with the foamed core material. Each multi-directional fiber reinforcement layer is impregnated with the core material exhibiting a relatively dense, resinous character, and each first region of the cavity is substantially filled with the core material exhibiting a resinous character to fixedly secure the multi-directional fiber reinforcement layers to the outer polymeric layers. A structural insert, such as a rigid plate adapted to receive fasteners, is embedded within the core material for attaching other devices or structures thereto.

A method of manufacturing a shell construction part of a wind turbine blade, the shell construction part being made of a fibre reinforced polymer material including a polymer matrix and fibre reinforcement material embedded in the polymer matrix. The method comprises the steps of a) providing a forming structure comprising a mould cavity and having a longitudinal direction, b) placing the fibre reinforcement material in mould cavity, c) providing a resin in the mould cavity simultaneously with and / or subsequently to step b), and d) curing the resin in order to form the composite structure, wherein at least 20% by volume of the fibre reinforcement material consists of metallic wires.

A ceramic anode structure obtainable by a process comprising the steps of: (a) providing a slurry by dispersing a powder of an electronically conductive phase and by adding a binder to the dispersion, in which said powder is selected from the group consisting of niobium-doped strontium titanate, vanadium-doped strontium titanate, tantalum-doped strontium titanate, and mixtures thereof, (b) sintering the slurry of step (a), (c) providing a precursor solution of ceria, said solution containing a solvent and a surfactant, (d) impregnating the resulting sintered structure of step (b) with the precursor solution of step (c), (e) subjecting the resulting structure of step (d) to calcination, and (f) conducting steps (d)-(e) at least once.

The invention relates to a light-weight and high-strength metal / ceramic composite material, in particular to a Mg alloy / Al2O3 composite material and a preparation method thereof. The Mg alloy / Al2O3 composite material of the present invention is composed of a layered structure Al2O3 matrix prepared by the ice template method and a Mg alloy impregnated and compounded in the interlayer gap of the matrix, and is a layered structure obtained by directional solidification by the ice template method. The Al2O3 green body is soaked in silica sol, and the nano-SiO2 is coated on the surface of the Al2O3 sheet, and then Mg alloy is impregnated in the Ar atmosphere. The composite material has high specific strength, and when the density of the composite material is 2.57g / cm3, its compressive strength can reach 697MPa.

A high-impregnation non-alkali glass fiber sizing agent for LFT reinforced polypropylene and its application, the sizing agent includes a pH regulator, a silane coupling agent, a film-forming agent A, a film-forming agent B, a lubricant, a surface Active agent, antioxidant and deionized water, film-forming agent A is polypropylene wax emulsion modified by maleic anhydride grafting, film-forming agent B is polyethylene emulsion modified by maleic anhydride grafting, lubricant is PEG The combination of lubricants and mineral oil lubricants, the surfactant is a combination of microcrystalline wax emulsion and cationic polyacrylamide emulsion, and the antioxidant is hypophosphite. The present invention also provides the application of the sizing agent in the production of alkali-free glass fibers for LFT-reinforced polypropylene. The glass fibers produced by the sizing agent have good interfacial bonding properties and can be rapidly compatible with polypropylene resin at high temperatures. The impregnation speed is fast, and it also has good manufacturability, good wear resistance, less hairiness, and high impregnation properties, which can improve production efficiency and reduce production costs.

A high-capacity aluminum electrolytic capacitor, including a core package and a casing, the core package is sealed and arranged in the casing through a rubber plug, and the core package is wound or folded by including anode foil, electrolytic paper and cathode foil; the core package is impregnated with The electrolytic solution is grafted with polyethylene glycol or polyethylene glycol derivatives on the electrolytic paper. In the present invention, since polyethylene glycol or polyethylene glycol derivatives are grafted on the electrolytic paper, because polyethylene glycol or polyethylene glycol derivatives have good compatibility with the solvent of the electrolyte, so in During impregnation, more electrolyte can be impregnated on the electrolytic paper, and the impregnation speed is fast.

The present invention relates to active charcoals with improved mechanical properties. They can advantageously be used in the sweetening of petroleum fractions, as oxidation catalyst support in the conversion of mercaptans to disulphides, but also in any other type of reaction, such as, for example, for the oxidation of cyanide present in water or in the synthesis of glyphosate, and in processes for purification and / or separation by selective adsorption in a liquid phase and / or in a gas phase (decolouration of liquid foodstuffs, water treatment, air treatment, recovery of solvents, and the like).

The invention discloses an ultra-high power graphite electrode pressing device with a dipping function. The ultra-high power graphite electrode pressing device with the dipping function comprises a base, wherein a pressing tank and a liquid storage tank are fixedly arranged on the base; a sealed cap is fastened to the upper end of the pressing tank in a sealing way; an electric-hydraulic push rodI and multiple electric-hydraulic push rods II distributed circumferentially by adopting the electric-hydraulic push rod I as the center are vertically and fixedly arranged on the sealed cap; the pressing tank is internally divided into a dipping chamber on the upper part and a pressing chamber on the lower part; and the inner diameter of the pressing chamber is smaller than the inner diameter ofthe dipping chamber. The ultra-high power graphite electrode pressing device with the dipping function has the beneficial effects that an ultra-high power graphite electrode block blank can be pressedand dipped in the pressing device, so that the trouble of conveying the block blank is saved, the production time is saved, the production efficiency of an ultra-high power graphite electrode is improved, the steps of the pressing and dipping processes are less, the pressing and dipping speed is fast, the efficiency is high, and the practicability is good.

The invention belongs to the technical field of multi-layer composite material components and preparation methods thereof, and specifically discloses a VIMP preparation method of a composite material component with a surface functional layer. The composite material component includes an outer layer and a body layer. The layers are the first and second composite material systems; the first composite material system is based on epoxy resin, phenolic resin, etc., the second composite material system is based on unsaturated polyester resin, and each system is based on carbon fiber Or fiberglass cloth as reinforcement. The VIMP preparation method is to firstly adopt the resin film infiltration process to prepare a reinforced resin film on the surface of a vacuum dip molding process molding mold, and then use the molding mold covered with the reinforced resin film to prepare a composite product through a vacuum dip molding process. Material components. The VIMP process of the present invention combines the double advantages of the RFI process and the VIMP process, and the prepared composite material component has better surface quality, better integrity and excellent comprehensive performance.

The present invention is an integrated method and equipment for the preparation of extrusion-impregnated composite materials and parts forming. The temperature is lower than the melting point of the powder. When the metal liquid infiltrated into the powder is cooled and solidified, a part made of composite material with the same shape and size as the cavity is obtained; the equipment consists of a press, a mold, a powder feeding device, and a liquid supply device. , The vacuum device is connected with each other. The invention has few technological processes, small equipment footprint, high production efficiency and high material utilization rate, is suitable for automatic mass production, can produce large parts, is convenient for manufacturing parts with complex shapes, and can produce dense multi-component materials. The composite material parts prepared by the invention have high precision, fine and uniform microstructure, repeatability, and the porosity content can reach the same level as that of dense materials, thereby reducing possible defects in the casting structure.