36results about "Slip casting moulds" patented technology

To provide a method for producing an oxide sintered body, in which a content of impurities is significantly reduced.SOLUTION: A method of the present invention for producing an oxide sintered body uses, as a raw material, an oxide containing two or more elements selected from In element, Ga element, and Zn element and satisfies the following conditions (a) to (c). An oxide having a purity of 6 N or more is used as the raw material. A grinding and mixing medium is formed of an oxide containing no element other than the elements selected as the raw material. Ultrapure water is used as a dispersion medium to form a slurry.SELECTED DRAWING: None

The present disclosure concerns a method of fabricating a curved 2D membrane comprising providing a curved polymer template on a support, flowing a solution of 2D material through the curved polymer template in order to form 2D multilayers on the curved polymer template and separating the 2D multilayers from the curved polymer template in order to form the curved 2D membrane. The curved 2D membrane is 10 characterised by a hyperbolic paraboloid curvature. The curved 2D membrane is characterised by a multi-layered lamellar morphology.

The invention relates to a slurry discharging device for ceramic production, and belongs to the technical field of ceramic production, and the slurry discharging device comprises an operation table, an operation plate is arranged on the operation table, a bottom plate is arranged below the operation plate, a bearing plate is arranged on one side of the bottom plate, a first electric cylinder is arranged on one side of the bottom plate, a push plate is fixedly arranged on an output shaft of the first electric cylinder, and a spray head is fixedly arranged on the push plate; a release agent source is fixedly arranged on the operation table, a communicating pipe is fixedly arranged between the spray head and the release agent source, the bottom plate is sleeved with an outer ring forming pipe, an inner ring forming column is arranged in the outer ring forming pipe, a connecting rod is arranged on the operation plate, and a lifting assembly for driving the connecting rod to ascend and descend and a moving assembly for horizontally moving are arranged on the operation plate; a shell is fixedly arranged on the operation plate, a rotating shell is arranged in the shell, a flow guide pipe is connected between the rotating shell and the release agent source, a plurality of injection pipes are fixedly arranged on the upper surface of the rotating shell, and a plurality of injection holes are formed in the side walls of the injection pipes.

The application relates to the technical field of ceramic production, in particular to a grouting equipment for daily-use ceramic production. The application provides the grouting equipment for daily-use ceramic production which can produce qualified ceramics. The grouting equipment for daily-use ceramic production comprises a mounting plate frame, a ceramic mold, a liquid storage tank, a liquid outlet, a liquid guide pipe and a shaking mechanism, the ceramic mold is placed in the mounting plate frame, the left side of the mounting plate frame is connected with the liquid storage tank, the upper side of the mounting plate frame is provided with the liquid outlet, the ceramic mold is located directly below the liquid outlet, the liquid guide pipe is in communication between the liquid outlet and the liquid storage tank, and the mounting plate frame is provided with the shaking mechanism for shaking the ceramic mold. The air in the piston cylinder is flowed into the ceramic mold through the air guide pipe by starting the motor and moving the limiting frame left and right to drive the ceramic mold and the raw materials to shake, so that the effect of shaking and pressurizing is realized, the raw materials are uniformly distributed in the ceramic mold, and the qualified production rate is improved.

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 relates to a method for manufacturing a part made of composite material, said method comprising: - the arrangement of a fibrous preform (10) in a mould comprising an impregnation chamber (201), the impregnation chamber (201) being closed by a membrane (230) separating the impregnation chamber (201) from a compaction chamber (202), - the injection of an impregnation fluid (5) into the impregnation chamber (201), and the injection of a compression fluid (6) into the compaction chamber (202) so as to apply pressure to the membrane (230), - the aspiration of the compression fluid (6) present in the compaction chamber (202), the method being characterized in that the surface (230b) of the membrane (230) present on the side of the compaction chamber (202) comprises a plurality of grooves (235a, 235b).

The method for producing an oxide sintered body according to the present invention is a method for producing an oxide sintered body using, as a starting material, an oxide containing two or more elements selected from the group consisting of In element, Ga element, and Zn element, the method satisfying the following (a)-(c). (a) The raw material is an oxide having a purity of 6N or more. (b) The grinding / mixing medium is formed from an oxide that does not contain an element other than the element selected as the starting material. And (c) slurrying using ultrapure water as a dispersion medium.

The invention discloses a three-dimensional ceramic tile and a preparation method thereof. The invention discloses a three-dimensional grouting structure for ceramic tiles, and relates to the technical field of ceramic tile processing. Comprising an upper die; the grouting mechanism and the upper mold are arranged up and down, a grouting cavity is formed after mold closing, a through hole is formed in one side of the top of the upper mold, a grouting pipe is fixedly connected into the through hole, and the grouting pipe is communicated with the grouting cavity; the grouting mechanism comprises at least one lower mold assembly, and a three-dimensional protruding rib structure is arranged on the working face of the lower mold assembly. Through the arrangement of the convex ribs, a grid structure formed by the convex ribs can directly impress three-dimensional textures in a ceramic tile green body, a traditional plane grouting or later engraving process is replaced, the working procedures are reduced, the cost is reduced, meanwhile, the anchoring columns can form a convex structure in the ceramic tile, the mechanical meshing force of the ceramic tile and a binding material is enhanced, and the mechanical performance of the ceramic tile is improved. And the paving firmness is improved.

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 invention relates to the technical field of toilet production equipment, in particular to a slip casting device and method for a toilet blank, the slip casting device comprises a forming mechanism, the forming mechanism comprises a machining table, electric telescopic rods are fixedly connected to the two sides of the top of the machining table, a lower mold is arranged at the top of the machining table, and side molds are arranged on the two sides of the lower mold; the outer side of the side mold is fixedly connected with the output end of the electric telescopic rod, and a liquid inlet is formed in the top of the side mold; the air drying mechanism comprises a fan, the fan is located at the top of the lower mold, ceramic slurry is injected into the forming mechanism at high pressure, so that a closestool blank is formed preliminarily, the air drying mechanism is started to conduct multi-directional air drying on the preliminarily formed closestool blank, the wind power in the initial air drying process is small, and the wind power in the later air drying process is improved; and during air drying, the dehumidifying mechanism is used for dehumidifying the blown-out air, and meanwhile, the blown-out air can be heated, so that the air drying efficiency is improved.

Methods and apparatus are provided for pressure casting ceramic bodies. Methods and apparatus are provided for rapid ejection of cast ceramic bodies from a mold. A mold is described that has an impermeable cavity surface to provide dry release of the cast body. Ceramic bodies produced by the methods and apparatus have smooth, non-tacky surfaces after ejection from the mold

The present application relates to the technical field of ceramic manufacturing, and particularly relates to a gypsum mold with an internal structure ceramic body and a forming method thereof; the mold comprises an internal structure mold and an external main mold, the internal structure mold is used for manufacturing an internal structure model process green body, and the internal structure model process green body is placed in the external main mold and processed into a ceramic product green body; the present application provides a gypsum mold design and forming method of an internal structure ceramic product green body, the external main mold and the internal structure model are reasonably split, gypsum molds are respectively designed, a ceramic clay body mold with an internal structure is obtained, and a complex internal structure can be realized in a ceramic product.

The application discloses a cement grouting material forming device and method, which comprises a cylinder and a cushion block, first and second end covers are respectively and tightly arranged at two ends of the cylinder, a plurality of capillary layers are arranged on the inner wall of the cylinder, and a replaceable water permeable membrane is arranged on the inner wall of the cylinder along the circumferential direction; a slurry inlet is arranged on the first end cover, and a water excretion hole is arranged on the second end cover; the cushion block is arranged in the cylinder, a plurality of capillary drainage grooves are arranged on the side of the second end cover close to the cushion block, and the capillary layer and the capillary drainage groove are matched to drain the water excreted by the test piece in the cylinder from the water excretion hole. The capillary layer is arranged to simulate the capillary pores of the surrounding soil in the engineering application process, the excreted water can be guided out of the capillary layer when the cement grouting material is pressurized, the water-binder ratio of the test piece measured is closer to the actual water-binder ratio, and the compression resistance data is more in line with the actual situation.

The closestool high-pressure slip casting device comprises an equipment frame, and the top of the equipment frame is fixedly connected with a connecting cross beam; the first limiting sliding rods are arranged in the middle of the equipment frame, the outer sides of the first limiting sliding rods are slidably connected with a plurality of first moving frames, and female dies for driving the two die cavities are arranged below the first moving frames; the second limiting sliding rod and the second limiting sliding rod are arranged in the middle of the equipment frame and located above the first limiting sliding rod, in the mold closing process, the second movable frame on the outermost edge drives the shielding cloth to be pulled out to shield the steel wire rope on the upper portion and prevent the steel wire rope from falling to interfere with mold closing on the lower portion, and the storage box and the clockwork spring can automatically wind the shielding cloth during resetting. According to the discharging part, transverse moving, lifting, rotating and overturning actions of a discharging bracket are achieved through a linear module, a driving air cylinder, a second gear motor, a synchronous belt transmission assembly and the like, blanks can be flexibly taken down from a male die, and the positions of the blanks can be adjusted, so that workers can receive the blanks conveniently.

A method for manufacturing ceramic sanitary ware (2) by means of pressure casting in a mould (4) comprising at least two mould parts (5A, 5B), the method comprising the following steps: - a mould treatment step, during which an application device (7) applies a first ceramic body comprising a ceramic suspension with a viscosity of 3,000-30,000 cPs on a surface of at least one of the mould parts (5A, 5B) to form a defined decoration (D) thereon; - a step of closing the mould (4), whereby a casting cavity (6) is formed; - a casting step during which a feeding system feeds a second ceramic body under pressure into the casting cavity (6); - a forming step, during which the liquid component of the second ceramic body flows through the walls of the mould parts (5A, 5B) and out of the casting cavity (6), while the solid component is deposited on said walls; and - a demoulding step, during which the finished ceramic sanitary ware (2), with the defined decoration (D) incorporated therein, is extracted from the mould (4).

The present invention relates to an inner pot movable block model and a toilet mold, comprising an inner pot middle movable block, an inner pot upper movable block, an inner pot front movable block, an inner pot left movable block, an inner pot right movable block, an inner pot left rear movable block, and an inner pot right rear movable block. The upper side surfaces of the inner pot middle movable block, the inner pot left movable block, the inner pot right movable block, the inner pot left rear movable block, and the inner pot right rear movable block all fit in place with the lower side surface of the inner pot upper movable block. A positioning structure is provided between the inner pot upper movable block and the inner pot middle movable block. The inner pot middle movable block, the inner pot left movable block, and the inner pot right movable block all have an upwardly projecting protrusion at the front, and the inner pot upper movable block has an escape portion that fits in place with the protrusion. The present invention has a simple structure, can optimize the problem of the inner pot upper movable block being easily broken and deformed at the front, extend the use of the mold, and simultaneously make the molded product smooth, stabilize production capacity, and improve product qualification rate and production efficiency.

The invention relates to a multi-part casting mould for producing sanitary objects. The casting mould comprises at least one core wedge (30) of wedge-shaped design, and a core mould (1), wherein the at least one core wedge (30) has a magnetic element. Furthermore, the core mould (1) has at least one magnet (10) which is displaceable by means of a compressed-air actuating device and is connectable to the magnetic element of the core wedge (30) in order to fix the core wedge (30) on the core mould (1). Furthermore, a method for opening and closing a casting mould and a gypsum bench with a plurality of multi-part casting moulds are disclosed.

The invention discloses a ceramic closestool high-pressure grouting machine, and relates to the technical field of closestool forming, the ceramic closestool high-pressure grouting machine comprises a first bottom plate and a second bottom plate welded to the side of the first bottom plate, and a stirring mechanism used for mixing slurry is fixedly arranged on the upper surface of the first bottom plate. The slurry pump is arranged, so that the beaten slurry can be pumped into the slurry barrel to be continuously stirred, the effect of preventing the slurry from layering is achieved, then the slurry is conveyed into a mold in a mold closing state through the diaphragm pump, and then the slurry injection work is completed; the rack is fixedly arranged on the upper surface of the second bottom plate, a mold mechanism used for forming is arranged at the top of the inner wall of the rack, by arranging the mold mechanism, a mold can be in a mold closing state under control during working, then slurry is conveyed to a slurry pipe through a stirring mechanism diaphragm pump to be injected into the mold, and meanwhile in the mold closing state, the slurry can be conveyed into the mold through a stirring mechanism diaphragm pump; and the effect that the mold can be precisely closed and separated is achieved.

To provide methods for forming a unitized crucible assembly for holding a melt of silicon for forming a silicon ingot, and to provide a unitized crucible.SOLUTION: In some embodiments, the methods involve a porous crucible mold having a channel network 20 with a bottom channel 30, an outer sidewall channel 32 that extends from the bottom channel 30, and a central weir channel 34 that extends from the bottom channel 30. A slip slurry may be added to the channel network 20 and the liquid carrier of the slip slurry may be drawn into the mold. The resulting green body may be sintered to form the crucible assembly.SELECTED DRAWING: Figure 3

A method for producing a part made of composite material, includes obtaining a mold includes (i) a fibrous texture, (ii) a granular filtration layer located between a drainage surface of the texture and a permeable discharge surface and including a powder of filtration particles, and (iii) an element for retaining the granular layer, which element is distinct from the layer and located between the permeable discharge surface and the drainage surface, introducing a suspension including matrix particles in a liquid medium through an introduction surface of the fibrous texture that is distinct from the drainage surface, the liquid medium passing through the drainage surface, the granular filtration layer and the retention element to be discharged through the permeable discharge surface, and the matrix particles being retained in the pores of the fibrous texture by the granular filtration layer, and forming the part made of composite material by forming a matrix.

Provided is a gypsum composition for preparing a frame base for a ceramic green piece, comprising alpha calcium sulphate hemihydrate in an amount of from 80wt% to 100wt% based on total weight of the composition, beta calcium sulphate hemihydrate in an amount of from 0wt% to 20wt% based on total weight of the composition, and additives in an amount of from 0wt% to 5wt% based on total weight of the composition. The frame base according to the present disclosure shows adapted mechanical and water absorbing properties, which may be used as a support and water absorber for a ceramic green piece and the frame base has a long working lifetime.

The utility model discloses an improved toilet casting forming equipment process, the upper die is fixedly installed in the lower surface of upper end seat, the lower die is fixedly installed in the upper surface of lower end seat, and the middle die is fixedly installed in the upper frame, the side die is slidably arranged in the side of lower end seat, and can be surrounded with upper die, middle die and lower die to form the mold cavity, the upper end of upper end seat is provided with two first lifting oil cylinders, two second lifting oil cylinders and four pressurizing oil cylinders, and the lower end of the piston rod of first lifting oil cylinder is fixedly connected with lower end seat, the lower end of second lifting oil cylinder is fixedly connected with the upper frame, and the piston rod of pressurizing oil cylinder passes through upper end seat and upper frame vertically downward and is fixedly connected with lower end seat, and the upper frame is slidably connected with the piston rod of pressurizing oil cylinder, compared with prior art, the utility model passes through the pressurizing oil cylinder as the guide pillar of upper end seat and upper frame's up-and-down movement, need not to set up the guide pillar structure additionally, reduces the cost of equipment. Moreover, the height of overall equipment after closing the mould is reduced, so that the mould is more flexible when turning over.

The present invention relates to a method for manufacturing a toilet blank. The manufacturing method includes the following steps: a grouting step: producing a seat blank, an inner container blank and a main body blank; a first demolding step: demolding a part of a main body mold, a part of an inner container mold and a part of a seat mold; a first bonding step: bonding a first bonding surface of the inner container blank and a bonding surface of the main body blank to each other; a second demolding step: demolding another part of the inner container mold from the inner container blank; a second bonding step: bonding a bonding surface of the seat blank and a second bonding surface of the inner container blank to each other; and a third demolding step: demolding demolded parts of the seat mold, the inner container mold and the main body mold from a bonded toilet blank. By bonding the blanks to each other with parts of the molds not demolded, the contact of an operator with the blanks is reduced during bonding, and the blanks can be accurately located relative to each other using the parts of the molds.

A method for manufacturing a part made of composite material, includes the arrangement of a fibrous preform in a mould including an impregnation chamber, the impregnation chamber being closed by a membrane separating the impregnation chamber from a compaction chamber, the injection of an impregnation fluid into the impregnation chamber, and the injection of a compression fluid into the compaction chamber so as to apply a pressure on the membrane, the aspiration of the compression fluid present in the compaction chamber, the surface of the membrane present on the side of the compaction chamber including a plurality of grooves.

The present invention relates to a double-wall cooling ceramic core and a hot-press injection integral molding method. The method comprises the following steps: carrying out hot-press injection molding on a resin mold preparation slurry to obtain a resin mold, wherein the raw materials for preparing the resin mold preparation slurry include: 50-60 parts by weight of a cross-linking agent, 20-30 parts by weight of a hydrotrope, 5-10 parts by weight of an additive, 5-10 parts by weight of a reinforcing agent, and 5-30 parts by weight of a viscosity modifier; assembling the resin mold in a profile mold, injecting a ceramic core slurry into the profile mold, and carrying out hot-press injection molding to obtain a green body wrapping the resin mold; removing the resin mold from the green body wrapping the resin mold to obtain a double-wall cooling ceramic core green body; and carrying out degreasing treatment and sintering treatment on the double-wall cooling ceramic core green body to obtain the double-wall cooling ceramic core. The present invention solves the common problems in existing hot-press injection molding processes of numerous molds, long periods, and poor assembly accuracy caused by segmented preparation followed by assembly during the preparation of ceramic cores having complex structures.

The application discloses a method for preparing honeycomb ceramics by using a 3D printing resin template, and specifically comprises the following steps: S1, printing a porous resin grid template by using a 3D printing technology, wherein the material for the 3D printed porous resin grid template is rigid photosensitive resin and flexible photosensitive resin; S2, preparing a rigid resin grid template; S3, preparing a flexible resin grid template; S4, preparing honeycomb ceramics by using the 3D printed resin grid template and ceramic slurry, wherein the 3D printing technology in the step S1 comprises a photocuring 3D printing technology, a powder laying adhesive jetting 3D printing technology and an extrusion 3D printing technology, and the grid structure of the 3D printed porous resin grid template in the step S1 is a uniform structure or a gradient pore structure. The application relates to the technical field of ceramic production. The method for preparing honeycomb ceramics by using a 3D printing resin template can greatly improve the filtering efficiency, reduce impurity defects caused by structure falling off and improve the structural strength.

The application discloses a production process of a toilet blank, a forming die and a toilet, and the production process comprises the following steps: S1, injecting mud into a die; and S2, forming a double-faced mud structure in the base of the toilet blank after a double-faced mud process, taking the double-faced mud structure as a washing ring runner, so that water flow can completely flow through the washing ring runner and realize flushing in the toilet. The independent washing ring runner with smooth inner wall is formed through the double-faced mud process, the flushing capacity of the toilet bowl is further enhanced, and the quality and the aesthetic degree of the product are improved. Since the washing ring runner and the upper ring cavity are independent of each other, the residual water phenomenon is effectively avoided. Meanwhile, the washing hole of the washing ring runner can be directly formed after the completion of the baffle bonding, and manual punching treatment is not needed, so that the production efficiency of the product is improved, and the production cost is saved.

The application discloses a high-pressure grouting machine, which comprises a working frame, a workbench installed on the working frame, and a first lifting mechanism connected with the workbench; a transfer table is further arranged on the workbench and is used for stacking a plurality of molds to be grouted; a grouting hole penetrating to the bottom of each mold is formed on the top of each mold, and the grouting hole of each mold is aligned with the grouting hole of the adjacent mold when the plurality of molds are stacked; a grouting port is further formed on the top of the working frame at the corresponding position of the workbench, and a pressure increasing mechanism in communication with the grouting port is further installed on the working frame. The mechanical pressure increasing mode is adopted to increase the pressure to 0.5 MPa or higher, the mud propelling speed is high under the condition of higher pressure, and thus the generation of grout lines, shrinkage, water ripples and other marks can be avoided, the product quality is improved, and meanwhile, the high-pressure grouting work can be completed on multiple molds at one time, and the working efficiency is high.

The invention relates to a method for producing a part made of composite material, said method comprising at least: - obtaining a mould comprising (i) a fibrous structure (6), (ii) a granular filtration layer (5a) located between a drainage surface (SD) of the structure and a permeable discharge surface (4) and comprising a powder of filtration particles (50a), and (iii) an element (5b) for retaining the granular layer, which element is separate from said layer and located between the permeable discharge surface and the drainage surface, - introducing a suspension (1) comprising matrix particles (PM) in a liquid medium (ML) through an introduction surface (SI) of the fibrous structure that is separate from the drainage surface, the liquid medium passing through the drainage surface, the granular filtration layer and the retention element to be discharged through the permeable discharge surface, and the matrix particles being retained in the pores of the fibrous structure by the granular filtration layer, and - forming the part made of composite material by forming a matrix in the pores of the fibrous structure using the matrix particles, and forming a surface layer of this part using the filtration particles.