30 results about "Ceramic forming techniques" patented technology

The invention belongs to the technical field of ceramic forming, in particular relates to a forming process for a bathroom ceramic billet, which comprises the steps: (1) allocating forming materials according to ratio and mixing the forming materials into even slurry; (2) pressing the slurry into a high strength permeable mold, enabling the pressure of the slurry in the permeable mold to be kept at 0.3-1.6MPa for 0.5-5minutes, and enabling the slurry to crust and form the ceramic billet; (3) discharging the slurry left in the high strength permeable mold; (4) blowing compressed air into the high strength permeable mold, and keeping the pressure of the compressed air in the high strength mold at 0.1-0.25MPa for 0.1-1minute; (5) enabling the inside and the outside of the ceramic billet to form pressure difference of 100-1000Pa by increasing the outside pressure of the high strength permeable mold, keeping the pressure difference at no less than 0.1 second, and enabling the ceramic billet to be separated from the high strength permeable mold; and (6) separating the high strength permeable mold to obtain the ceramic billet. By means of the high pressure grouting forming process for the ceramic billet of the technical scheme, required number of the mold is small, and manufacture efficiency and compact evenness of the billet are high.

A process and apparatus for controllable fast solidification of shaped colloidal ceramics are disclosed. Said apparatus is composed of two vacuum storage tanks for different ceramic slurries, mixing system, diaphragm-type metering unit, high-pressure opposite jetting mixer, static mier, and mould. Said process includes stirring two ceramics slurries in vacuum state respectively, fostly injecting them in static mixer, high-pressure opposite jetting mixing, injecting in vacuum mould, and fast reaction and solidification. Its advantages are uniform solidifying and no internal stress.

The invention relates to the technical field of ceramic forming, and discloses an open ceramic product dry pressing forming device with an automatic demolding function. The open ceramic product dry pressing forming device comprises a machine frame, a motor support is fixedly connected in the machine frame, a lifting mold is connected to the outer side of the motor support in a sliding mode, and a rotating motor is fixedly connected to the upper surface of the interior of the machine frame. According to the open ceramic product dry pressing forming device with the automatic demolding function, a rotating shaft drives a connecting rod to rotate, the connecting rod drives a planet wheel to rotate, the planet wheel drives an eccentric sliding block to rotate, the eccentric sliding block drives a lifting sliding rail to move, the lifting sliding rail drives a lifting mold to move, a rotating motor drives a driving wheel to rotate, and the driving wheel drives a driven wheel to rotate. The driven wheel drives the lower bottom plate to rotate, a transmission assembly drives a lifting rotating shaft to rotate, the lifting rotating shaft drives a rotating crank to rotate, the rotating crank drives a sliding sleeve to rotate, the sliding sleeve drives a pressing block to move, and then by using the lifting mold and other mechanisms in cooperation, the effects of automatic pressing forming and rotating demolding are achieved.

The present invention belongs to the field of ceramic forming technology, and is the new liquid phase pre-treatment method of degrading organic matter in biscuit to prevent cracking during eliminating glue. The ceramic biscuit after gel injection molding is liquid phase pre-treated inside water solution o ammonium persulfate or potassium persulfate before eliminating glue. Under the action of peroxide, the polymer inside the ceramic biscuit is chain breaking degraded, the netted macro molecule becomes small molecule and internal stress in the biscuit is released. The biscuit thus treated will not crack and will have no fault during overheat defatting and glue eliminating. The present invention is simple in technological process, low in cost and suitable for industrial production.

A method and apparatus for measuring the coagulating point of ceramic suspension are based on the principle that the coagulation in situ of ceramic suspension can be induced by heat releasing and external pressure. Said method includes preparing the slurry of ceramic suspension, loading the slurry in mould, putting the pressure applying head and temp sensor in said slurry while attaching pressure sensor to bottom of mould, applying pressure to the slurry, acquiring the data, processing the data by computer program, drawing the relation curve between pressure, temp and coagulating point, and determining the initial coagulating point.

The present invention discloses vacuum bubble-eliminating method for injected ceramic slurry via adding polymerization retarder to ensure no curing during vacuum pumping, and belongs to the field of ceramic forming technology. Into slurry, initiator, catalyst and polymerization retarder comprising phenothiazine and catechol are added through stirring; and the slurry is then pumped to eliminate bubble for 10-15 min to obtain slurry with excellent flowability and no bubble for injection directly. Adding polymerization retarder in certain amount can delay the cure of the slurry to ensure vacuum deairing effect without affecting the normal curing of the slurry in subsequent step.

The invention belongs to the technical field of ceramic molding, and in particular relates to a molding mold for sanitary ceramic blanks; it includes an outer mold and a support plate for sealing the outer mold, and is characterized in that: the outer mold includes a water-absorbing and air-permeable K plaster mold and is arranged on K The steel sleeve of the outer wall of the plaster mold, the steel sleeve is provided with air vents, and the support plate is provided with a grouting port and an air injection port; the special mold for the high-pressure grouting molding process of ceramic blanks adopting the technical solution of the present invention, the strength High is not easy to be damaged by high pressure, and can be permeable and breathable.

The invention discloses a sheet-shaped-ceramic forming device and a use method of the sheet-shaped-ceramic forming device and relates to the technical field of forming of sheet-shaped ceramics. The sheet-shaped-ceramic forming device and the use method of the sheet-shaped-ceramic forming device achieve the effects of guaranteeing the quality consistency of products and improving production efficiency. According to the technical scheme, the sheet-shaped-ceramic forming device comprises a base, a platform and a forming mold. The base is provided with a first end face. The platform is arranged on the base in an inclined manner. The platform is provided with a second end face and a third end face opposite to the second end face. The second end face is opposite to the first end face. An included angle between the third end face and the first end face is an acute angle. The forming mold is of a platy structure and is laid on the third end face, and ceramic slurry is poured into the forming mold in an inclined manner.

The invention relates to a blank turning machine and a blank production line, and belongs to the technical field of ceramic molding. The invention proposes a blank turning machine, and the blank turning machine comprises a base, a rotating stand, a rotating drive device, a first conveying line, a second conveying line and a compression device, wherein the rotating stand is rotationally supported on the base; the rotating drive device is installed on the base, and the rotating drive device can drive the rotating stand to rotate; the first conveying line and the second conveying line are parallel to each other and arranged in the rotating stand up and down at intervals; the compression device is installed in the rotating stand, the compression device is used to match with the first conveyingline to compress a blank together when the rotating stand is in a feeding position, and the compression device is used to place the blank on the second conveying line when the rotating stand is in adischarging position. The invention also proposes a blank production line, and the blank production line comprises the above blank turning machine. The blank turning machine is used on the blank production line, the blank can be automatically loaded and unloaded, the loading direction and the unloading direction are parallel to each other, the blank is automatically fed in and out, and the integrity of the blank can also be ensured.

The invention belongs to the technical field of ceramic forming, and particularly discloses a manufacturing process and an application method of an aluminum alloy mold for ceramic forming. The surfaceof the aluminum alloy mold is subjected to special treatment to enable contact performance between the surface of the mold and a clay blank to be similar to that of a gypsum mold. The mold is capableof replacing the gypsum mold and used for ceramic forming, pollution of ceramic waste to the environment is reduced, the forming labor intensity can be reduced, the production cost is saved, and theblank forming quality is improved; and special-shaped product development and new product development and upgrading are facilitated.

The invention relates to the technical field of ceramic molding, and discloses a rapid prototyping and convenient demolding mechanism for long-necked ceramic products, comprising a rack, a table top and a horizontal chute are fixedly connected to the top of the rack, and the top of the rack is The front side is fixedly connected with an indicator plate, and the top of the frame is rotatably connected with a feed screw. The rapid prototyping and convenient demolding mechanism of this long-necked ceramic product is driven by the rotating flange to drive the feed screw to rotate, and the feed screw drives the cutting plate to move, and then through the cooperation of the horizontal chute, the indicator plate and the fixed mold, so as to achieve The effect of manual precision cutting is that the lifting flange drives the displacement of the retractable lift rod, the retraction lift rod drives the tension rod to rotate, the tension rod drives the fixed mold to shrink, the lift motor drives the lift plate to rotate, and the lift plate drives the rotary drive wheel to move up and rotate. The transmission wheel drives the fixed mold to move up, and then cooperates with the driving gear and other mechanisms to achieve the effect of automatic lifting and demoulding.

The invention belongs to the technical field of ceramic molding, and particularly relates to a ceramic microsphere and a preparation method thereof. The ceramic microsphere is obtained from a glue solution through an internal gelation process, wherein the glue solution comprises metal ions, hexamethylenetetramine and urea, and the glue solution also comprises a complexing agent acetylacetone or aderivative thereof. By adding the complexing agent, the stability of the glue solution at normal temperature can be prolonged, the content of urea can be increased, more urea-formaldehyde resin is generated, the supporting effect is improved, the strength of the gel ball is improved, and the situation that the gel ball is broken or even broken in subsequent treatment is avoided. The obtained ceramic microsphere has the advantages of being uniform in size, good in sphericity degree and free of surface cracking, a nozzle is not blocked in the preparation process, the yield is high, and industrial large-scale production can be achieved. Besides, the non-ionic surfactant is adopted to replace an organic solvent in the prior art, so that the wastewater treatment cost is reduced, and the production environment is greatly improved.

The invention relates to a method for preparing uranium dioxide microspheres at normal temperature, and belongs to the technical field of ceramic forming. According to the method, components in an internal gel solution are divided into a uranyl nitrate solution (ADUN) stable at normal temperature and a mixed solution (HMUR) of urea and hexamethylenetetramine; the two solutions are rapidly mixed inan automatic mixing device to form an unstable uranium glue solution; the mixed uranium glue solution rapidly enters silicone oil, and is shear into liquid drops with uniform sizes by the silicone oil; the liquid drops and the silicone oil are cured into gel microspheres by a microwave heating device; and the gel microspheres are washed, dried and sintered to obtain monodisperse UO2 sintered microspheres with uniform sizes and good sphericity. According to the invention, microfluidic control is adopted in the whole process of the method, so that the UO2 microspheres are prepared at normal temperature through an internal gel method without human interference, and the automation degree is high.

The invention belongs to the technical field of ceramic forming, in particular relates to a forming process for a bathroom ceramic billet, which comprises the steps: (1) allocating forming materials according to ratio and mixing the forming materials into even slurry; (2) pressing the slurry into a high strength permeable mold, enabling the pressure of the slurry in the permeable mold to be kept at 0.3-1.6MPa for 0.5-5minutes, and enabling the slurry to crust and form the ceramic billet; (3) discharging the slurry left in the high strength permeable mold; (4) blowing compressed air into the high strength permeable mold, and keeping the pressure of the compressed air in the high strength mold at 0.1-0.25MPa for 0.1-1minute; (5) enabling the inside and the outside of the ceramic billet to form pressure difference of 100-1000Pa by increasing the outside pressure of the high strength permeable mold, keeping the pressure difference at no less than 0.1 second, and enabling the ceramic billet to be separated from the high strength permeable mold; and (6) separating the high strength permeable mold to obtain the ceramic billet. By means of the high pressure grouting forming process for the ceramic billet of the technical scheme, required number of the mold is small, and manufacture efficiency and compact evenness of the billet are high.

The invention belongs to the technical field of ceramic molding, and in particular relates to a ceramic microsphere and a preparation method thereof. The ceramic microspheres are obtained from a glue solution through an internal gelling process; wherein the glue solution includes metal ions, hexamethylenetetramine and urea; and the glue solution also includes a complexing agent acetylacetone or derivatives thereof. The present invention can not only prolong the stability of the glue solution at normal temperature by adding complexing agent, but also increase the urea content, and then produce more urea-formaldehyde resin to improve the supporting effect, thereby improving the strength of the gel ball and avoiding the occurrence of Cracked or even chipped. The ceramic microspheres obtained by the invention have the advantages of uniform size, good sphericity, and no cracks on the surface, and the nozzles are not blocked during the preparation process, the yield is high, and industrialized large-scale production can be realized. In addition, the invention adopts the non-ionic surface active agent to replace the organic solvent in the existing technology, which not only reduces the waste water treatment cost, but also greatly improves the production environment.