62results about "Ceramic shaping linings" patented technology

The invention discloses a preparation method of an easy-to-demold concrete test mold with super-hydrophobic and super-smooth inner wall, and belongs to the field of concrete test molds. The method comprises the following steps of: a, spin-coating negative photoresist, and obtaining a substrate with an inverted trapezoidal micron structure on the inner wall in an ultraviolet lithography manner; b, depositing a metal layer through vacuum evaporation; c, removing the metal layer on the upper surface of the inverted trapezoidal micron structure on the inner wall of the substrate; d, obtaining a micro-nano hierarchical structure on the metal layer; e, spin-coating molten wax, and after cooling, filling the micron-sized pores with solid wax; f, depositing aluminum through vacuum evaporation, and performing anodic oxidation to obtain a porous metal aluminum surface; g, solid wax is discharged, lubricating oil is injected, the whole pores are filled with the lubricating oil, and the super-hydrophobic and super-smooth surface is obtained; and h, splicing the base to obtain the easy-to-demould concrete test mould with super-hydrophobic and super-smooth performance. The cohesiveness of the concrete and the inner wall of the test mold is reduced, so that the concrete is easily separated from the inner wall of the concrete test mold.

To provide a water-permeable sheet with little fluffing after being removed from a mold. [Solution] A water-permeable sheet used in formwork for manufacturing concrete products, the water-permeable sheet having a first nonwoven fabric layer containing a first resin fiber and a second nonwoven fabric layer arranged on one side of the first nonwoven fabric layer and containing a second resin fiber, the 60° gloss value of the surface of the water-permeable sheet facing the second nonwoven fabric layer being 5.0 or higher.

The utility model discloses an auxiliary curing device of a polishing roller, and belongs to the technical field of rhinestone production. Comprising a rectangular frame, a rectangular cylinder, a plurality of pulleys, a fan, a heating wire, a heating controller, four rectangular pipes and a heating wire fixing pipe, the bottom, the top and the front side of the rectangular frame are open; the top and the bottom of the rectangular cylinder are open, and the rectangular cylinder is located over the forming mold. The heating wire comprises a central heating unit and four side wall heating units; the front end and the rear end of the left side and the right side of the rectangular cylinder are each provided with a rectangular pipe, and the four side wall heating units correspond to the four rectangular pipes respectively. The side wall heating unit is fixed on the rectangular cylinder through an insulating sleeve, is vertically arranged, is arranged in a snakelike manner in the front-back direction, and is positioned on the adjacent inner side of the corresponding left side or right side of the rectangular cylinder; the wiring ends of the side wall heating units are arranged in the left-right direction, penetrate out of the rectangular barrel outwards and are located in the corresponding rectangular pipes. The central heating unit is located in the middle in the rectangular cylinder and fixed to the lower side of the heating wire fixing pipe.

A plastic encased mandrel includes an open cell carbonaceous foam that is shaped to correspond to a core of a ceramic matrix composite (CMC) part. A polyvinyl butyral (PVB) plastic is injection molded into the carbonaceous foam, before or after shaping, to encase the carbonaceous foam core and form an encased mandrel. The open cell carbonaceous foam may be silicon carbide (SiC) foam or reticulated vitreous carbon (RVC) foam. The foam core may be incorporated into the CMC part when SiC foam is used for better distribution of thermal and structural loads or the foam core may be removed from the CMC part when RVC foam is used, such as when a CMC vane incorporates a metal spar.

To provide a water-permeable sheet with minimal fluffing after demolding. [Solution] A permeable sheet used in a mold for manufacturing concrete products, wherein the permeable sheet comprises a first nonwoven fabric layer containing first resin fibers and a second nonwoven fabric layer containing second resin fibers, disposed on one side of the first nonwoven fabric layer, and the 60° gross value of the side of the permeable sheet facing the second nonwoven fabric layer is 5.0 or more.

The invention relates to a method for manufacturing a part made of composite material, comprising the arrangement of a fibrous preform (10, 20) in the impregnation chamber (110, 210) of a mould (100, 200), the impregnation chamber (110, 210) being closed by a flexible membrane (130, 230) separating the impregnation chamber (110, 210) from a compaction chamber (120, 220), an impregnation fluid (1000, 3000) being injected into the impregnation chamber (110, 210) and a compression fluid (2000, 4000) being injected into the compaction chamber (120, 220), the compression fluid (2000, 4000) being a liquid in which the value of the density is between 60% and 125% of the density of the impregnation fluid (1000, 3000).

The invention provides a concrete preparation method, a mold and a concrete curing system, and belongs to the field of concrete. The method comprises the following steps: providing a mold and mixed slurry, wherein the mixed slurry comprises low-calcium clinker, phosphogypsum, carbide slag and water; pouring the mixed slurry into the mold to form a concrete member; curing the concrete member by using flue gas to obtain concrete; wherein the low-calcium clinker contains Ca < 14 > Mg < 2 > (SiO < 4 >) < 8 >, beta-Ca < 2 > SiO < 4 > and Ca < 2 > Al < 2 > SiO < 7 >. According to the invention, the high temperature of the flue gas can be utilized to realize the curing effect, the pollutant components in the flue gas and the components in the formula can be utilized to react with each other to realize sulfur fixation, nitrogen fixation and carbon fixation, the effect of improving the early strength is achieved by virtue of the reaction while the pollutant purification effect is achieved, the concrete with good performance can be prepared, and the cost is reduced. And pollutants in the flue gas can be purified, so that the coordination of the requirements of the concrete, flue gas emission and environmental protection is realized.

The utility model discloses a foamed mould of foam concrete heat preservation board relates to foam concrete production equipment technical field. The device includes mould body, and the inside of mould body is provided with quick detach unit, and the spliced baffle in quick detach unit sets up in the inside of mould body, and the inner wall of spliced baffle is sprayed with release agent, side clamping piece sets up in the inside of mould body, and jacking piece sets up below mould body. The device adopts the spliced baffle, and can be disassembled into bottom plate, support plate and connecting plate and the like components after demoulding, is convenient for the thorough cleaning to each component, compared with integral mould, greatly shortens the cleaning time, reduces manpower investment, reduces production cost, and the setting of quick detach unit realizes quick demoulding and mould cleaning, so that the next round production can start faster, effectively guarantees the continuity of production, improves overall production efficiency.

The utility model provides a kind of wear-resistant corrosion-resistant brick mould, including upper die and lower die, the surface of upper die is provided with wear-resistant corrosion-resistant metal lining, and the inner wall of lower die is provided with the lining of same material;The periphery template of lower die is provided with fixed hole not penetrating outer wall;The opposite side of the lining is provided with fixed stick matching the size of fixed hole position, and the lower template of lower die is provided with through-hole;The lower lining of the lining is vertically provided with screw rod matching the size of through-hole position, further including nut matching the screw rod, and the nut is fixed in the nut groove outside lower template.The utility model is provided with wear-resistant corrosion-resistant metal lining on the surface of upper die and the inner wall of lower die, prevent the inner surface of brick mould from being damaged by sand in brick material friction when making brick, affect the size accuracy of brick embryo;Secondly, each lining of lining is independent, easy to disassemble and replace, facilitate regular inspection and maintenance.

The invention provides a release film, a method of manufacturing a multilayer electronic component, and a multilayer electronic component. The release film comprises: a base layer; and a release layer disposed on one surface of the base layer and including a cured product of a release composition, in which when a surface of the release layer is analyzed using an X-ray photoelectron spectrometer (XPS), a ratio (Si / C) of an atomic percent of silicon (at%) to an atomic percent of carbon (at%) is 0.15 to 0.20, and a surface hardness of the release layer measured by a nanoindentation method is 200 MPa to 300 MPa, and the average roughness Ra of the center line of the other surface, opposite to the one surface, of the base layer is less than or equal to 15 nm.

The utility model discloses a semiconductor equipment ceramic arm preparation die with an anti-oxidation coating, which comprises a machine table, a lower die holder is fixedly arranged on the upper end face of the machine table, a lower die is fixedly arranged at the upper end of the lower die holder, a support frame is fixedly arranged above the machine table, and an air cylinder is fixedly arranged at the upper end of the support frame. One end of the air cylinder penetrates through the interior of the supporting frame, the extending end of the air cylinder is connected with an upper mold base, an upper mold is fixedly arranged below the upper mold base, cooling structures are arranged in the upper mold and the lower mold correspondingly, a demolding structure is arranged below the lower mold, and the demolding structure comprises a positioning plate fixedly installed in the machine table; a driving motor is arranged on the rear side of the positioning plate, a transmission structure is arranged below the driving motor, an eccentric disc is arranged on the front side of the positioning plate, a connecting column is fixedly arranged at the position, away from the circle center, of the outer wall of the eccentric disc, the connecting column is slidably connected with an ejection frame, and rapid demolding can be achieved after the ceramic arm is machined.

The invention relates to a metallic mold (1) for casting a fresh concrete mix, a method for protecting such a mold (1) against corrosion, and a method for producing a concrete product by casting fresh concrete into such a mold. The mold (1) comprises at least one wall (3) delimiting a receiving volume (4) for the mix (7) and is characterized in that the lateral wall (3) has an inner face (30) provided, in whole or in part, with a coating composed of a metallic film (5) having a lower electrochemical potential than the mold material (1) and a layer of an electrolytic material (6) ensuring the adhesion of the metallic film (5) to the mold (1) so as to protect from corrosion a surface exposed to the concrete mix cast into the receiving volume that is adjacent to the wall. Figure to be published with the abstract: Fig. 1

This invention discloses a molding device for processing and producing slope protection bricks, relating to the field of slope protection brick processing technology. It includes a processing table, and the molding device further includes: a support platform fixedly installed on top of the processing table, with a lower mold frame placed on top of the processing table, and first positioning sleeves fixedly installed on the left and right sides of the lower mold frame; and two vertical rods, with their bottom ends fixedly installed on the left and right sides of the processing table, and top plates fixedly installed on the top ends of both vertical rods. This invention utilizes a crosshair and alignment line to quickly and accurately place the lower mold frame, ensuring consistent dimensions of the slope protection bricks; it uses an anti-stick plate for rapid demolding; the lower and upper mold mounting components allow for quick assembly and disassembly of molds of different specifications to meet diverse production needs; and a stabilizing component ensures stable operation, effectively solving the problem of low practicality of the original device.

This invention provides a release film that enables the molding of ceramic green sheets with fewer defects. [Solution] One embodiment of the present invention provides a release film comprising a base layer and a release layer disposed on one surface of the base layer and containing a cured product of a release composition, wherein the release layer has a silicon content (at%) ratio (Si / C) of 0.15 or more to 0.20 or less when surface analysis is performed using X-ray photoelectron spectroscopy (XPS), a surface hardness of 200 MPa or more to 300 MPa when measured by nanoindentation, and the other surface of the base layer facing the one surface has a centerline mean roughness (Ra) of 15 nm or less.

The invention relates to a device (2) for manufacturing green bricks (4) from a material, such as clay material, according to the invention and a method therefor. The device (2) according to the invention comprises: - a mould (8) for moulding the material; - a filling device (26) for introducing the material into the mould (8) in a filling direction (F); and - a pressing device (10) for pressing the material into a green brick in the mould (8) in a pressing direction (P); wherein the pressing direction (P) and the filling direction (F) lie at a filling angle (α) and wherein the mould (8) comprises one or more volume controllers (24) which are configured to control the quantity of material introduced into the mould (8).

The invention relates to a method for densifying a fibrous texture made of ceramic material used in injection equipment comprising: - a mould cavity defined between a mould and a counter-mould, the mould cavity defining an internal space; and - a membrane comprising a stiffened zone, the membrane being intended to be placed between a fibrous texture present in the mould cavity and the counter-mould, and the stiffened zone of the membrane having a Young's modulus greater than 200 GPa, the method comprising: - placing (110) a predensified fibrous texture in the mould cavity, the predensified fibrous texture having corrugations on the surface and placing the membrane on the predensified fibrous texture in such a way that the stiffened zone of the membrane is in contact with the peaks of the corrugations of the predensified fibrous texture; - closing (120) the injection equipment by placing the counter-mould on the membrane and applying a compaction pressure (Pcompaction) to the membrane so as to keep the stiffened zone of the membrane in contact with the peaks of the corrugations of the predensified fibrous texture; and - densifying (130) the predensified fibrous texture by infiltrating a slip into the porosity of the predensified fibrous texture, the slip being injected into the mould chamber laterally to the membrane at an injection pressure (Pinjection) such that the difference in pressure between the compaction pressure and the injection pressure is between 0.5 x 10^5 Pa and 6 x 10^5 Pa.

The present disclosure provides a method of manufacturing a textured building product. The method comprises: a) creating a heightmap of a textured surface (14); b) using the heightmap to create a 3D model of a textured embosser (10) comprising the textured surface; c) using additive manufacturing to produce a textured embosser based on the 3D model; and d) imparting the textured surface of the textured embosser onto a surface of a building material (30) to produce a textured building product (34).

The invention discloses an easy-to-demold concrete test mold with an inner wall having super-hydrophobic and super-smooth performance, and belongs to the field of concrete test molds. The concrete test mold easy to demold comprises four vertical plates and a bottom plate, micro-nano structures are arranged on the inner walls of the vertical plates and the bottom plate, and lubricating oil is injected into pores of the micro-nano structures; the preparation method specifically comprises the following steps: a, spin-coating a negative photoresist, and carrying out ultraviolet lithography to obtain a substrate with an inverted trapezoidal micron structure on the inner wall; b, depositing a metal layer through vacuum evaporation; c, removing the metal layer; d, obtaining a micro-nano hierarchical structure on the metal layer; e, spin-coating molten wax; f, spin coating of positive photoresist is carried out, and ultraviolet lithography is carried out; g, discharging the solid wax in the micron-sized pores; h, lubricating oil is injected into the obtained substrate with the micro-nano structure, so that the whole pores are filled with the lubricating oil; and j, splicing the base to obtain the easy-to-demould concrete test mould. The cohesiveness of the concrete and the inner wall of the test mold is reduced, so that the concrete is easily separated from the inner wall of the concrete test mold.

The invention discloses a preparation method of an easy-to-demold concrete test mold with a super-hydrophobic inner wall, and belongs to the field of concrete test molds. The method comprises the following steps of: a, spin-coating negative photoresist, and obtaining a substrate with an inverted trapezoidal micron structure on the inner wall in an ultraviolet lithography manner; b, depositing a metal layer through vacuum evaporation; c, removing the metal layer on the upper surface of the inverted trapezoidal micron structure on the inner wall of the substrate; d, obtaining a micro-nano hierarchical structure on the coated metal layer; e, spin-coating molten wax, and after cooling, filling micron-sized pores among the inverted trapezoidal structures with solid wax; f, depositing aluminum through vacuum evaporation, and performing anodic oxidation to obtain a porous metal aluminum surface; g, the solid wax in the micron-sized pores is discharged, and the substrate with the super-hydrophobic surface structure is obtained; and h, splicing the base to obtain the easy-to-demold concrete test mold with the super-hydrophobic performance. The cohesiveness of the concrete and the inner wall of the test mold is reduced, so that the concrete is easily separated from the inner wall of the concrete test mold.

The invention discloses a high-strength wear-resistant pipe pile steel die and a processing and forming process thereof. The high-strength wear-resistant pipe pile steel die is prepared from the following components in percentage by weight: 0.28 to 0.38 percent of C, 0.30 to 0.60 percent of Si, 1.20 to 1.80 percent of Mn, 0.80 to 1.50 percent of Cr, 0.20 to 0.40 percent of Mo, 0.30 to 0.80 percent of Ni, 0.05 to 0.15 percent of V, 0.02 to 0.06 percent of Nb, less than or equal to 0.015 percent of P, less than or equal to 0.010 percent of S and the balance of Fe and inevitable impurities. The prepared steel die has excellent strength, toughness, wear resistance and thermal fatigue resistance, the service life is remarkably prolonged, and the steel die is suitable for harsh pipe pile production working conditions.

The utility model relates to the technical field of concrete molds, in particular to an ultra-high performance concrete pouring forming mold which comprises an upper mold and a lower mold which are matched and butted, a positioning mechanism is arranged between the upper mold and the lower mold, the lower mold comprises a bottom plate, and the bottom plate is provided with a butting groove. A detachable forming frame is arranged in the butt joint groove in a butt joint mode. The upper mold comprises an upper cover, the lower end face of the upper cover is fixedly connected with a bubble discharging structure, and the bubble discharging structure is externally connected with an air pump. The arrangement of the rubber inner layer can facilitate quick demolding of a formed part, and meanwhile, the arrangement of the bubble discharging structure can apply pressure during pouring, so that bubbles in concrete are conveniently extruded and discharged, and the situation that more bubbles exist in the formed concrete is avoided.

A method for molding a ceramic core includes introducing a slurry to a mold and vibrating the mold. The slurry has: silica-containing particles; polymer fiber; and matrix precursor. The mold has an outer tool and a liner held within the outer tool. The vibrating comprises operating a plurality of vibration transducers distributed along the mold.

The utility model relates to a composite building block forming die, which belongs to the technical field of forming dies, and comprises a bottom plate, a die cylinder with a polygonal cross section and a pressing plate, and a guide post is vertically fixed on the top surface of the bottom plate; the die cylinder sleeves the peripheral side of the guide column in a clearance manner, and the bottom end of the die cylinder is detachably connected to the top surface of the bottom plate; the pressing plate is located above the bottom plate, a guide hole is formed in the middle of the pressing plate, the guide column slides in the guide hole, and the pressing plate slides in the die cylinder in a sealed mode. Gaps among the bottom plate, the guide columns, the die cylinder and the pressing plate are cavities. A traditional building block forming die structure is improved, the guide columns are perpendicularly fixed to the top face of the bottom plate, then the guide holes connected with the guide columns in a sliding mode are formed in the pressing plate, gaps among the bottom plate, the guide columns, the die cylinder and the pressing plate are the cavities, and straw fiber reinforced soil is placed in the cavities. After the pressing plate presses straw fiber reinforced soil in the guiding direction of the guiding column, building blocks can be rapidly formed in the cavity, and the pressing forming precision of the building blocks is improved.

The utility model discloses an environment-friendly marble sawn mud curb mold. The environment-friendly marble sawn mud curb mold comprises a base, a mold main body and a heating device, the base supports the whole mold, a pair of heating devices on the base are clamped outside the mold body, each heating device comprises heating pipes distributed on the upper side and the lower side and an external heat insulation layer, saw mud can be evenly heated, and heat loss is reduced. The mold body is formed by connecting the detachable upper mold plate, the detachable lower mold plate and the detachable side mold plate through bolts, the inner wall of a cavity is coated with a polytetrafluoroethylene high-temperature-resistant coating, demolding is facilitated, and adhesion is reduced. Mounting grooves are formed in the side templates to accommodate bolts and quick unlocking tools, so that the templates can be quickly disassembled, assembled and maintained; a silicone rubber sealing strip is arranged between the side template and the upper template, and a gap is filled with high-temperature-resistant epoxy resin glue, so that the sealing performance is ensured; the lower die plate is movably arranged in the cavity and can be freely replaced to adapt to production of different specifications.

An ingot mold for curing fused and melted material is provided. The ingot mold includes a steel box, a foamed carbon layer, and a graphite block layer. The foamed carbon layer is formed inside the steel box. The graphite block layer is formed inside the steel box.

A plastic encased mandrel includes an open cell carbonaceous foam that is shaped to correspond to a core of a ceramic matrix composite (CMC) part. A polyvinyl butyral (PVB) plastic is injection molded into the carbonaceous foam, before or after shaping, to encase the carbonaceous foam core and form an encased mandrel. The open cell carbonaceous foam may be silicon carbide (SiC) foam or reticulated vitreous carbon (RVC) foam. The foam core may be incorporated into the CMC part when SiC foam is used for better distribution of thermal and structural loads or the foam core may be removed from the CMC part when RVC foam is used, such as when a CMC vane incorporates a metal spar.