205 results about "Liquid resin" patented technology

The invention discloses an ingredient mixing device for CIPP-ultraviolet light curing repair material production, and particularly relates to the technical field of CIPP-ultraviolet light curing repair material.The ingredient mixing device comprises a shell, supporting frames are fixedly connected to the four corners of the lower end of the shell, and a stirring mechanism is arranged on the lower portion of the inner surface of the shell; the inner surfaces of the two circular cavities are jointly provided with a pretreatment assembly, and a premixing assembly is arranged above the stirring mechanism. According to the ingredient mixing device for production of the CIPP-ultraviolet curing repair material, the pretreatment assembly is arranged, a liquid resin material is subjected to layered swinging, scraping, runner conveying and converging mixing, and the problem that local aggregation or layered precipitation is prone to occurring due to viscosity and density differences caused by different types of liquid resin is solved; different types of liquid resins can firstly form independent thin layers, and then are gradually contacted and fused along a flowing path, so that full shearing and permeation among the liquid resins are realized, and the mixing uniformity of the liquid resins is improved.

To reduce the time required for removing a wafer mask.SOLUTION: Provided is a division method for dividing a wafer (10) along a street (14) by irradiating the wafer with a plasma-activated etching gas (EG), in which the wafer has devices (15) formed in regions divided by the street. A liquid resin (34) is applied to the device and dried to form a mask (17) that masks the device surface while exposing the streets. Plasma-activated etching gas is then applied onto the wafer to form a division groove (18) along the streets. Subsequently, an altered portion (D) on the mask surface is removed by alternating continuous and pulsed irradiation with an oxygen-containing plasma (P), after which the entire mask is removed from the wafer.SELECTED DRAWING: Figure 5

The invention provides a carbon fiber induction heating closed-loop intelligent control system and method, and relates to the technical field of carbon fiber processing equipment, and the system comprises an unwinding device, a dipping device, a heating curing device, a winding device and a rack; the unwinding device, the dipping device, the heating and curing device and the winding device are all arranged on the rack; the unwinding device comprises an unwinding servo motor, an unwinding roller and a first guide roller; the dipping device comprises a dipping tank, a second traction roller and a first traction roller; liquid resin is contained in the dipping tank, and the dipping tank is used for carrying out resin coating and preliminary infiltration on carbon fibers; the heating and curing device comprises a shell, an iron core, a conductive roller, an insulating roller, a magnet exciting coil and a sensor group; the iron core, the conductive roller, the insulating roller, the magnet exciting coil and the sensor group are all arranged in the shell; the excitation coil is sleeved on the iron core; the insulating roller and the conductive roller are used for clamping carbon fibers; the winding device comprises a winding servo motor, a winding roller and a second guide roller.

The invention discloses porous graphite and a preparation method thereof, an electrode and a battery, and relates to the technical field of new energy. The preparation method of the porous graphite comprises the following steps: providing liquid resin and a liquid aromatic polymer, mixing, and sequentially carrying out heat treatment, carbonization treatment, graphitization treatment and activation treatment to obtain the porous graphite. According to the preparation method of the porous graphite provided by the embodiment of the invention, the porous graphite is prepared by taking the liquid resin and the liquid aromatic polymer as raw materials, multiple reactions of curing and aging of the resin and combination of the resin and the aromatic polymer occur in the heat treatment process, and the porous graphite is prepared in the carbonization process. Aromatic polymer molecules are rearranged into an ordered carbon layer, and resin cross-linked molecules form a hard carbon skeleton; in the graphitization process, the ordered carbon layer forms a graphite-like carbon layer, and the order degree of the hard carbon skeleton is not changed; in the activation process, the graphite-like carbon layer is difficult to etch, the hard carbon skeleton participates in the reaction to form a pore structure, and finally the porous graphite is prepared.

The invention discloses an aviation composite material paddle and a preparation method thereof, and the preparation method comprises the following steps: curing a carbon fiber prepreg by using a mold pressing process to prepare a carbon beam as a main bearing structure; a carbon beam and a light core material are used as internal supports through a three-dimensional weaving technology, a skin is formed through wrapping and weaving, and an integrated fiber prefabricated body is obtained; preparing a toughened resin system for RTM (resin transfer molding), wherein the toughened resin system comprises liquid resin capable of being thermally cured, a curing agent and a carbon nanotube subjected to surface chemical modification; and placing the fiber preform in a mold, closing the mold, injecting the toughened resin system into a mold cavity, curing, and demolding to obtain the aviation composite material paddle. According to the invention, the preparation of the composite material paddle with high surface precision, light overall weight and excellent impact toughness is realized, and the preparation method is good in process repeatability and suitable for batch production.

The technology described herein provides methods and devices to manage process flows and support systems for 3D printing. The technology provides methods and devices for separating contaminants in 3D printing fluids. The technology provides methods and devices for aligning projectors with six degrees of freedom in 3D printers. The technology provides methods and devices to cause the flow of an immiscible liquid under an interface with liquid resin in a 3D printer liquid vat to be laminar, of proper height, and of appropriate flow rate to remove heat. The technology provides methods and devices to provide feedback loops for a three-dimensional printing process that uses a flow of oil under a liquid resin to control heat in the printing process.

The application discloses a processing method of a Magnus effect rotating drum wind sail structure integration, which comprises the following steps: winding a filamentous composite material on a mold as a bottom layer of a product; winding a structural core material on the bottom layer after the winding of the bottom layer is completed; winding the filamentous composite material on the structural core material as an outer layer of the product after the winding of the structural core material is completed; sealing the bottom layer and the outer layer and the structural core material therebetween, vacuumizing, and performing a resin flow guiding process after the winding is completed; guiding liquid resin to the bottom layer and the outer layer and the structural core material therebetween through a hose; solidifying the resin and performing segmented demolding after the resin is solidified. On the basis of the winding process adopting a sandwich structure, the application additionally adds a resin flow guiding process, integrates the resin for the winding formed sandwich structure, integrates the structure of the rotating drum wind sail, and has the advantages of high product strength, good quality, low processing difficulty and low comprehensive cost.

The invention relates to the technical field of cutting tools, and particularly discloses a cutting disc and a manufacturing method thereof, and the cutting disc comprises the following raw materials: liquid resin, a curing agent, reinforced fibers, an abrasive material and a filler. The reinforced fiber is one or a combination of more of glass fiber, carbon fiber and the like; the grinding material is one or a combination of more of white corundum, diamond and the like; the filler is one or a combination of more of molybdenum disulfide, copper powder and the like; the liquid resin can be a combination of epoxy resin E-44 and the like or a combination of unsaturated polyester and the like; the curing agent is selected from combination of dicyandiamide and the like or MEKP and the like according to the type of the liquid resin. The manufacturing method comprises the following steps: uniformly mixing the raw materials, carrying out hot press molding, carrying out secondary hardening, and finally thinning the hardened product to the thickness of 0.1-0.35 mm. The cutting blade is high in strength, good in wear resistance, controllable in thickness and capable of meeting the cutting requirements of different industries.

A quantum-dot light conversion film, a preparation method and an application thereof and an anti-ultraviolet blue-free yellow light for chip manufacturing are provided. The preparation method includes: (1) mixing a quantum-dot concentrate with an acrylic monomer, then adding high polymer for secondary mixing, to obtain a polymer; (2) after mixing the polymer and nanoparticles, adding additives for dispersion to obtain a light conversion liquid resin; and (3) coating and curing the light conversion liquid resin to obtain a quantum-dot light conversion film. The light conversion film has high light conversion efficiency, adjustable emission peak position and narrow half peak width. Its surface forms a tightly arranged high refractive index microlens structure. When the light reaches the microlens array, as the light output surface is a lens structure and the refractive index is improved, more light is emitted in the positive direction, thereby effectively improving the light output rate.

A liquid resin composition includes: (a) a resin making up 20-80 wt % of the liquid resin composition, wherein the resin is selected from the group consisting of a self-crosslinking acrylic resin and a polyurethane resin, and the glass transition temperature (Tg) of the resin is in the range from −20° C. to 25° C.; (b) thermal shielding particles making up 1-10 wt % of the liquid resin composition; and (c) a water-based solvent making up 5-25 wt % of the liquid resin composition. The film is formed by coating the substrate with the liquid resin composition and drying the liquid resin composition on the substrate. A film formed of the liquid resin composition of the present invention can block out IR and UV radiation while remaining highly permeable to visible light, meaning the film can ward off the radiant heat and UV radiation of sunlight but is still visually transparent.

The utility model provides a core material of a blade web plate of a wind generating set, the web plate, a blade and the wind generating set, a plurality of flow channels are arranged on the surface of the core material, and the plurality of flow channels extend along the same direction. According to the core material provided by the utility model, the plurality of runners for flowing of the poured liquid resin are arranged on the surface of the core material, so that the liquid resin can smoothly flow through the runners and fully spread the core material, auxiliary materials such as a flow guide net can be omitted, the process is simplified, and the cost is saved; furthermore, the plurality of runners extend along the same direction, so that the flowing of the liquid resin is more orderly and smoother.

A protective member forming apparatus is provided that determines whether a liquid resin has spread to a predetermined range when the liquid resin is pressed to spread. The protective member forming apparatus forms a protective member on the front surface of a substrate by laminating a UV-curable liquid resin and a cover sheet on a resin film. The apparatus comprises: a liquid resin supply unit that supplies the liquid resin to the resin film in close contact with the substrate; a pressing unit having a flat, light-transmissive pressing surface that presses the liquid resin with the pressing surface through the cover sheet to spread the liquid resin on the resin film; an ultraviolet irradiation unit that irradiates the liquid resin with ultraviolet rays to harden it; and a determination unit that determines the state of the spread liquid resin. The determination unit comprises: a camera that images the liquid resin and the substrate; and a determination unit that detects the liquid resin and the substrate based on the image captured by the camera and determines whether the liquid resin has spread to a predetermined range relative to the substrate.

The invention relates to a method for forming a decorative panel (10) for furniture, comprising the following steps: Providing (100) a base plate (1) defined by a lower wall (11) and an upper wall (12) and having several lateral faces (13); Providing (200) a frame (2), said frame (2) defining a central opening (21) of a shape substantially complementary to that of the base plate (1); Arranging (300) the base plate (1) inside the central opening (21) of the frame (2), so that the frame (2) surrounds the lateral faces (13) of the base plate (1) and defines a filling cavity (22) above the upper wall (12) of the base plate (1); Fixing the frame (2) to the base plate (1); Applying glue or an adhesive to the upper wall (12) of the base plate. base (1), the glue or adhesive being suitable for ensuring the adhesion of a layer of terrazzo (3) to the base plate (1);Deposition (400) of a terrazzo layer (3) formed from a mixture of liquid cement or liquid resin and aggregates of materials inside the filling cavity (22) until the terrazzo layer (3) is flush with an upper edge (23) of the frame (2); Drying (500) of the terrazzo layer (3) so as to solidify the cement or resin; Sanding (600) of the terrazzo layer (3) and the frame (2) until a smooth upper surface and a predetermined thickness are obtained; Polishing and then preferably application of a waterproof protective layer on the upper surface of the terrazzo layer (3). Figure 1;

The invention relates to the technical field of conductive silver adhesives, in particular to a high-shear-strength conductive silver adhesive and a preparation method thereof.The high-shear-strength conductive silver adhesive is prepared from, by weight, 40-70 parts of conductive silver powder, 10-30 parts of epoxy resin, 2-10 parts of modified liquid resin, 3-10 parts of reactive diluent and 4-8 parts of curing agent. The liquid resin is modified by introducing the silallyl compound containing Schiff base, and the proportion of each component is accurately regulated and controlled, so that the conductive silver adhesive with high shear strength and excellent conductivity is successfully prepared, and the conductive silver adhesive has a wide application prospect in the field of high-end electronic packaging.

To provide a decorative article having a metallic texture which can be hand-made in particular SOLUTION: The ornament is characterized in that a fiber material such as a patterned cloth is used as a base material, and a plurality of kinds of liquid materials for nail art are recoated so as to cover the base material and finished into a metallic texture. The liquid material for nail art includes a nail polish for undercoating, a plurality of kinds of gel nails for recoating, and a resin liquid, which are applied to the surface of the base material and cured by irradiation with ultraviolet rays to impart a metallic texture to the base material.SELECTED DRAWING: Figure 1

The invention relates to the technical field of mine safety monitoring, and discloses a device and method for measuring mining-induced stress, temperature and water pressure of a mine, the device comprises a high-strength metal shell, a hollow connecting rod, a water pressure measuring unit, a strain measuring unit, a temperature measuring unit and a single through optical fiber, and the surface of the shell is provided with a spiral resin grouting channel; a mechanical occlusion structure is constructed through a solid resin entity, and rock mass displacement is equivalently transmitted to a shell. The temperature compensation fiber bragg grating is coated with a heat insulation coating, in-situ rigid coupling is achieved by injecting liquid resin into a grouting channel, the central wavelength peak value of each grating is obtained through the wavelength division multiplexing technology, the environment temperature variable quantity is extracted based on the temperature compensation fiber bragg grating, and therefore the thermally induced drift distance of the strain grating is deducted, and the compensated strain value is obtained. And inverting and outputting the in-situ three-dimensional mining-induced stress state by mapping the constitutive equation set. According to the invention, synchronous high-fidelity acquisition of multi-physics field parameters is realized, and the intrinsic safety characteristic and the electromagnetic immunocompetence are realized.

The invention discloses a hardened resin parallel grinding wheel and a preparation method thereof. The hardened resin parallel grinding wheel comprises a parallel grinding wheel base body, the center part of the grinding wheel base body protrudes upwards, a shaft hole used for installing a grinding wheel is formed in the circle center position of the grinding wheel base body, and the base body is composed of a reinforcing material layer located in the base body and a grinding material layer wrapping the reinforcing material layer; the reinforcing material layer is composed of carbon fiber meshes coated with resin, the abrasive material layer is composed of, by weight, 50-60 parts of white corundum, 50-60 parts of single crystal corundum, 5-10 parts of liquid resin, 10-15 parts of powdery resin, 18-22 parts of an activating agent and 0.2-1.0 part of a coloring agent, the activating agent is an organic silicon activating agent or an organic fluorine activating agent, and the coloring agent is Fe2O3 or carbon black. The prepared hardened resin parallel grinding wheel not only can quickly polish a workpiece, but also can ensure that the strength and the heat dissipation effect of the resin grinding wheel are not changed, the durability of the resin grinding wheel is improved, meanwhile, vibration is avoided, and the operation and use comfort is kept.

The utility model provides a scraper knife assembly, a module, an automatic discharging device and a 3D printing system, a scraper knife main body is assembled on an assembly seat body, the scraper knife main body comprises a knife body main area part and a knife body function part which are connected, and the scraper knife main body is configured to have a knife body transverse direction and a knife body longitudinal direction which are perpendicular to each other; the cutter body main area part and the cutter body function part are longitudinally arranged along the cutter body, the area of the cutter body main area part is larger than that of the cutter body function part, and the cutter body function part is provided with an upper function surface and a lower function surface which face opposite directions. The upper functional surface and the lower functional surface are provided with liquid drainage structures, and the liquid drainage structures are used for guiding liquid printing materials to flow out of the knife body main area part. Therefore, the liquid resin can be guided out of the knife body main area part when passing through the liquid drainage structure, so that the liquid resin is prevented from flowing to the knife body main area part, and the subsequent cleaning of the scraper knife main body becomes simpler.

The invention relates to a flow battery pole plate preparation method based on mould pressing and a flow battery pole plate. The flow battery pole plate preparation method comprises the following steps: carrying out primary vacuumizing on an impregnation container in which a mould pressing plate formed by mould pressing is placed; injecting liquid resin into the dipping container until the liquid level of the liquid resin is higher than the top of the molded plate; vacuumizing the dipping container for the second time; pressurizing the impregnation container and maintaining the pressure for a set time to form an impregnation plate; the liquid resin in the impregnation container is discharged, and the liquid resin on the surface of the impregnation plate is cleaned after the impregnation plate is taken out; the cleaned dipping plate is subjected to water bath curing, so that resin filled in gaps of the dipping plate is cured; and drying the impregnated plate subjected to water bath curing to form the battery polar plate, and preparing the flow battery polar plate by using a mold pressing process by adopting the preparation method disclosed by the invention.

The present application relates to the technical field of composite materials, and provides a carbon / carbon composite material and a preparation method thereof, and a carbon / carbon PECVD bearing frame.The present application mixes liquid resin and carbon material powder to obtain a carbon-containing resin liquid; carbon cloth is dipped in the carbon-containing resin liquid to obtain a prepreg; the prepreg is laminated and then subjected to mold pressing treatment; the obtained plate blank is carbonized; the carbonized plate material is then dipped in pitch; the dipped carbonized plate material is carbonized again to obtain a carbon / carbon plate material; and the carbon / carbon plate material is subjected to graphitization treatment to obtain a carbon / carbon composite material.The carbon / carbon composite material is subjected to fine machining to obtain the carbon / carbon PECVD bearing frame.The carbon / carbon PECVD bearing frame provided by the present application has the advantages of low density, high strength, and designable size, can adapt to the complex process environment of PECVD, is not prone to damage, has excellent mechanical properties, has a low replacement frequency, has a long service life, and can effectively reduce the cost of the PECVD process.

To provide a method for manufacturing a film-like molding with reduced thickness unevenness.SOLUTION: The parallelism between a substrate 2 onto which a liquid resin material is applied and a substrate 3 that sandwiches the liquid resin material from above is adjusted to meet specified conditions. The adjustment is performed by setting at least three measurement base points on the circumference of a circle of a specified radius within the liquid material contact surface 3a of the substrate 3, measuring the distance from each measurement base point to the liquid material contact surface 2a of the substrate 2, and adjusting the distance and tilt between the substrate 2 and the substrate 3 such that the difference between the measured values satisfies the Equation (1): θ=tan-1 [(difference in measurements) / (radius of circle)×2], 0≤θ≤0.0025 (1).SELECTED DRAWING: Figure 1

The present application provides a protective member forming apparatus capable of suppressing difficulty in carrying out a workpiece on which a protective member is formed on one surface. The protective member forming apparatus includes: an ultraviolet irradiation table that supports a workpiece with a support surface of a support plate that transmits ultraviolet light; a carrying unit that holds a resin sheet on which the workpiece is fixed and carries out the workpiece from the ultraviolet irradiation table; a resin providing unit that provides a liquid resin of an ultraviolet hardening type to the resin sheet arranged on the support surface; a pressing unit that presses the workpiece from a back surface side toward the liquid resin provided to the resin sheet arranged on the support surface; and an ionizer unit that sprays ionized air to the support surface of the ultraviolet irradiation table.

The invention discloses blast furnace stemming and a preparation method thereof. The invention discloses a high-temperature-resistant wear-resistant coating which is characterized by comprising the following components in parts by weight: 380-420 parts of brown aluminum oxide, 70-90 parts of a carburant, 50-70 parts of Guangxi white mud, 110-150 parts of silicon carbide, 15-30 parts of asphalt powder, 5-30 parts of vanadium carbide or chromium carbide or a mixture of vanadium carbide and chromium carbide or pore-forming vanadium chromium carbide and 50-100 parts of liquid resin. The blast furnace stemming disclosed by the invention has relatively high high-temperature breaking strength, normal-temperature compression strength and normal-temperature breaking strength, and excellent slag and molten iron erosion resistance and molten iron scouring resistance.

Wafer processing method comprising: a protective film provisioning step with a provision of a protective film (21) on the front face (11a) of a wafer (11) having a component area (11d) where a plurality of components (15) are formed, each having a bump, and a circumferential edge area (11e) surrounding the component area (11d) in the state in which the component area (11d) is covered with the protective film (21), and then bringing the protective film (21) into close contact without adhesive with the front face (11a) of the wafer (11) in order to follow the shape of the bump;a wafer unit formation step comprising applying a liquid resin (25), which is curable by an external stimulus, to the front side (11a) of the wafer (11) and then curing the liquid resin (25) by applying the external stimulus to form a protective element (27) that covers the protective film (21) and the peripheral edge region (11e) of the wafer (11), thereby forming a wafer unit constructed with the wafer (11), the protective film (21) and the protective element (27) in the state in which the front side (11a) of the wafer (11) is covered with the protective element (27); a grinding step comprising holding the protective element (27) of the wafer unit against a holding surface (44a) of a clamping table (44) and then grinding the rear side (11b) of the wafer (11) of the wafer unit to thereby to reduce the thickness of the wafer (11);and a peeling step involving peeling the protective element (27) and the protective film (21) from the wafer (11), which is reduced in thickness.;

The invention provides a method for solving crazing defects of a composite material product, which comprises the following steps: a) controlling the temperature of liquid resin to be within a preset range in the process of applying the liquid resin to the inside and the surface of a solid material component of the composite material product; b) in the pre-curing process of the composite material, controlling the actual heating rate of the liquid composite material to be within a preset range; and c) in the post-curing / heat treatment process of the composite material, controlling the actual temperature of the composite material to be within a preset range. By controlling the infiltration, permeation and adsorption process of the liquid-state base material, the liquid-state base material reaches the optimized infiltration and adsorption state on the molecular level on each interface of different materials and different combined structures; and meanwhile, local stress concentration caused by the difference of thermal expansion and cold contraction multi-mode response of the material is controlled to be lower than a critical value for inducing craze formation, so that the craze whitening phenomenon of a composite material product is solved.

This invention provides a liquid resin composition for use in encapsulating power modules by casting, which offers an excellent balance between high-temperature storage characteristics and flame retardancy. [Solution] A liquid resin composition used for sealing a power module by casting, comprising a power module substrate on which a circuit layer is formed, and a power semiconductor element mounted on the circuit layer of the power module substrate, The liquid resin composition, epoxy resin, inorganic fillers, and Contains flame retardant, The flame retardant is a halogenated compound having a melting point of 250°C or higher and 600°C or lower. Liquid resin composition.

A method for manufacturing an electronic component for obtaining an electronic component in which a resin molded body and an object are integrated, the method comprising: a step for forming a resin accommodating part by laying a mold release film (2) on the upper surface of a first support table; a step for forming a resin distribution group (25) in which the resin material (4) is stacked at a desired position higher than at other positions by supplying the granular, powdered, or liquid resin material (4) to the resin storage unit; a step for forming a state in which a resin material (4) is loaded above a cavity (7) via the mold release film (2) by lifting up a resin distribution group (25) including the mold release film (2) and placing the resin distribution group (25) on a lower mold (61) such that the resin accommodating part corresponds to a position provided in the cavity (7) of the lower mold (61) in a shape corresponding to the resin molded body; a step in which the inner surface of the cavity (7) is covered with a release film (2), and the resin material (4) located in the resin housing part is disposed in the cavity (7); and a step for obtaining the resin molded body by compression molding the resin material (4) in a state in which the object is brought into contact with the resin material (4) in the cavity (7).

An insulating tape (100) is impregnated with a liquid resin containing at least one of a bisphenol A-type epoxy compound having a repeating number of zero and a bisphenol F-type epoxy compound having a repeating number of zero. A microcapsule (130) includes an outer shell body and an inclusion material having a property of promoting curing of the liquid resin. A binder layer (120) is composed of a crystalline epoxy resin having a molecular structure in which two phenyl groups are linked by a single bond, a molecular structure in which two phenyl groups are linked by an ether bond, or a molecular structure in which two phenyl groups are linked by a methylene group.

To disclose use of a low Tg compatible resin as an adhesive layer for welding a thermoplastic composite structure to a thermoplastic or thermoset structure.SOLUTION: The present invention is especially suitable for welding large parts such as wind turbine halves and spar caps. A useful thermoplastic composite is one formed by infusion and curing of long fibers by a reactive acrylic liquid resin-based material such as an ELIUM (R) resin-based material from Arkema.SELECTED DRAWING: None

The present disclosure provides a liquid resin composition that enables good flowability while achieving high curability and excellent storage stability. The liquid resin composition includes a liquid epoxy compound (A), a liquid aromatic amine compound (B), an inorganic filler (C), and a stabilizer (D). The stabilizer (D) has at least one anion selected from the group consisting of an anion represented by formula (1), an anion represented by formula (2), and an anion represented by formula (3).