CN111734084A - One-step formed ceramic plate with preset shape on bottom surface and manufacturing method thereof - Google Patents
One-step formed ceramic plate with preset shape on bottom surface and manufacturing method thereof Download PDFInfo
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- CN111734084A CN111734084A CN202010677293.2A CN202010677293A CN111734084A CN 111734084 A CN111734084 A CN 111734084A CN 202010677293 A CN202010677293 A CN 202010677293A CN 111734084 A CN111734084 A CN 111734084A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/02—Flooring or floor layers composed of a number of similar elements
- E04F15/02177—Floor elements for use at a specific location
- E04F15/02183—Floor elements for use at a specific location for outdoor use, e.g. in decks, patios, terraces, verandas or the like
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/02—Flooring or floor layers composed of a number of similar elements
- E04F15/08—Flooring or floor layers composed of a number of similar elements only of stone or stone-like material, e.g. ceramics, concrete; of glass or with a top layer of stone or stone-like material, e.g. ceramics, concrete or glass
- E04F15/082—Flooring or floor layers composed of a number of similar elements only of stone or stone-like material, e.g. ceramics, concrete; of glass or with a top layer of stone or stone-like material, e.g. ceramics, concrete or glass with a top layer of stone or stone-like material, e.g. ceramics, concrete or glass in combination with a lower layer of other material
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Abstract
The invention discloses a method for manufacturing a ceramic plate with a preset shape on the bottom surface by one-step forming, which comprises the following steps: the method comprises the following steps: preparing a die and installing the die on a ceramic press; step two: preparing raw materials; step three: laying down raw materials; step four: pressing into a green body; step five: drying and firing the green body; step six: cooling, cutting and edging to obtain a finished product; the ceramic plate prepared by the method comprises a blank bottom and a blank top, wherein the blank bottom is provided with a plurality of independent concave pits, the blank bottom is provided with a plurality of solid platforms, and the ceramic plate and the ground form an integrated structure when being paved through the design of concave pits on the bottom surface of the ceramic plate, so that the safety, the durability, the firm adhesion and the integral toughness of the ceramic plate after being combined with bonding materials such as cement and the like are improved; and a solid platform is preset at the bottom of the blank, and an expansion screw member is sleeved on the perforated sleeve to realize the application of dry hanging of the curtain wall, so that the application range of the porcelain plate is greatly expanded.
Description
Technical Field
The invention relates to the field of architectural ceramics, in particular to a ceramic plate with a preset shape on the bottom surface formed in one step, a manufacturing method and a manufacturing method thereof.
Background
With the development of building technology and materials, ceramic products have gradually been widely used in various paving places due to their excellent physical and chemical properties and the ability of selectively copying a plurality of exquisite patterns by digital ink-jet. Ceramic tile products fired at high temperature in indoor decoration paving become common knowledge of consumers at the present stage, and in outdoor application, the traditional method mainly adopts stone, concrete, cement or brick and the like, along with the improvement of living standard and the increasing high-grade and secondary high-grade requirements of consumers and the improvement of ceramic product technology, the ceramic products are gradually popularized and developed as the bricks for being applied to places such as squares, districts, gardens and the like to realize more standard design and application, and the ceramic products are more attractive due to the advantages of industrialized mass production and the advantages in the aspects of physical and chemical properties, color number images and the like.
The ceramic product is mainly applied to paving the tiles for gardens or squares at the present stage by the following two methods:
one is a product with high water absorption rate, which has poor physical and chemical properties such as folding resistance, oxidation resistance, pollution resistance, color change and the like, is easy to break in use, has poor bearing property, high water absorption rate, is easy to influence by the environment, has increasingly poor surface color difference blocks, has poor appearance under the influence of weather such as daily rainwater and the like, and has poor unified image presentation in high-end requirement application.
Secondly, ceramic plate products with water absorption lower than 0.5% are adopted, and the products have good oxidation resistance and good physical and chemical properties compared with high-water-absorption products, are not easy to fade or have color difference problem, and can be used for a long time.
However, the bottom surface of the porcelain plate product in the prior art is in a concave-convex pattern shape with the depth not exceeding 2mm, and the product blank is almost in an integral flat plate type structure when viewed from the whole product body, and when the product blank is subjected to strong external pushing force such as the friction of wheels often passed by vehicles, the product blank and the concrete or sand or adhesive below the product blank are easy to displace beyond the stress range, and when the product blank is paved and attached, the bonding force between the product and the concrete below the product is easy to fade away, so that the product blank is easy to loosen; in addition, when the board similar to the flat-plate type shallow shading is paved and adhered on the ground and the wall surface, the specific surface area of the board adhered to the ground and the wall surface is small, the ground grabbing force and the adhesive force are not strong, and the board is just like steel plates paved and adhered to the steel plates due to low water absorption rate, and the board is in a strong-hard state, so that the transmission of force is not dispersed easily under external force, particularly impact force, the fracture phenomenon is easily generated, and a buffering toughness space is lacked; moreover, because the low water absorption product has high density, the plate which is similar to the plate with shallow concave-convex shading in the prior art is paved, and the condition of inconsistent shrinkage of the concrete below can be caused after a long time, so that the plate is easy to loosen.
In summary, the ceramic product in the present stage is limited in application to outdoor paving, such as squares, districts, gardens and other places, and there is a strong need for improving the safety, durability, firm adhesion and overall toughness of the ceramic product after being bonded with bonding materials such as cement after being paved, so as to expand the application range of the ceramic product in the field of outdoor paving.
Disclosure of Invention
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a ceramic plate with a preset shape on the bottom surface formed in one step comprises a blank bottom and a blank top, wherein a plurality of concave pits are formed in the blank bottom, each concave pit is a single independent concave pit, and a plurality of solid platforms are arranged on the blank bottom.
Preferably, the thickness of the porcelain plate is 12-30 mm, and the projection of the pit bottom of each pit on the plane of the figure surrounded by the edge of the pit is located in the figure surrounded by the edge of the pit.
Preferably, the interval between each pit is not less than 5mm, the pit is a stepped pit with the bottom as the center, the deepest depth of the pit is not less than 1/4 of the total thickness of the porcelain plate, the length of the narrowest part of the pit mouth of the pit is not less than 8mm, and the edge of each pit mouth of the pit is surrounded by one or a combination of a plurality of circles, ellipses, squares, polygons and profiles.
The design of the concave pit effectively solves the problem that the ceramic product and concrete or sand or adhesives are easy to loosen in application, the product and the concrete or sand or adhesives below the product form a tight male-female occlusion state, so that the plate and the ground form an integral structure, and the breaking strength and the friction force of the plate are improved from the surface.
Preferably, the area of the solid platform is not less than 2cm2。
The preset solid platform can be hung and paved by sleeving expansion screws on the holes, so that the application space of the preset solid platform is greatly expanded, and the solid platform is generally 2cm2Otherwise, the strength after hole opening is poor and not firm.
Preferably, the included angle between the inner wall of the concave pit and the vertical direction is 10-75 degrees.
The design solves the problem of demoulding between the mould and the powder in the pressing process and the relatively consistent and uniform density of the pit bottom and the flat blank layer.
Preferably, the ceramic plate has a water absorption rate of less than 0.5% and a density of not more than 1.95g/cm3Is not less than 2.3g/cm3The ceramic plate of (1).
The plate product with low water absorption and high density has better physical and chemical properties than ceramic plates and stones.
The invention also discloses a manufacturing method of the ceramic plate with the preset shape on the bottom surface, which comprises the following steps: the method comprises the following steps: firstly, designing a blank bottom mould required for pressing the prepared porcelain plate in the reverse direction of the porcelain plate with a preset shape on the bottom surface formed in one step according to any one of claims 1 to 6, designing a blank top mould as an upper mould and a lower mould required for pressing in the reverse direction of a plane or a concave-convex shape, and installing the blank top mould on a ceramic press of a production line;
step two: preparing a porcelain raw material for producing a porcelain plate;
step three: evenly distributing ceramic raw materials with required thickness to the pressing and forming position of the ceramic press through a distribution grid;
step four: pressing and forming into a blank;
step five: conveying the blank into a drying kiln for drying and firing at 1150-1220 ℃ to obtain a semi-finished blank;
step six: cooling, cutting and edging to obtain a finished product of the porcelain plate with the bottom surface containing a preset concave model;
the porcelain raw material is a powder-particle porcelain raw material with the water content not higher than 9%.
Preferably, in the first step, the ceramic press is a stamping type, a rolling type or a top pressing type dry pressing type ceramic press. Thus, the adaptability in production and manufacture is stronger.
The sheet product can be easily formed.
Preferably, the bottom and top molds are designed in the reverse way according to the shrinkage rate of the ceramic powder compression molding and firing, that is, the ceramic plate and the bottom mold and the top mold are matched with each other and correspond to a male mold and a female mold.
The design effectively solves the problem that the ceramic product and concrete or sand or adhesives are easy to loosen in application, and the product and the concrete or sand or adhesives below form a tight male-female meshing state, so that the plate and the ground form an integral structure, and the flexural strength and the friction force of the plate are improved from the aspect.
Preferably, after the green body formed by pressing enters the drying process in the step five, the green body enters a glaze line process to perform ink jet of a preset pattern and surface process treatment of applying glaze and dry particle materials to form a decorative layer, and then enters a firing kiln process to be fired.
The application of such surface effects can satisfy the differentiated aesthetic requirements of people.
Compared with the prior art, the invention has the beneficial technical effects that:
1. the invention provides a once-formed porcelain plate with a preset shape on the bottom surface, the design of a pit enables concrete or sand-lime or adhesive under the porcelain plate to form a close male-female engagement state with the pit when the porcelain plate is paved and pasted, and the porcelain plate can be decomposed and conducted around the pit when bearing a great transverse acting force in the daily use process, thereby effectively solving the problem that the porcelain product and the concrete or sand-lime or adhesive are easy to loosen in application, and compared with a planar porcelain product with the same weight, the invention enables a great amount of concrete, sand-lime or adhesive to be embedded into the blank bottom to form a small bump of a small piece of pasting material through the design of the pit structure, the bump is embedded into the blank bottom pit of the invention to be fully contacted and adhered, so that the ceramic product and the adhesive material under the ceramic product are integrated, compared with the whole plate with shallow concave-convex bottom texture adhering, the invention has firmer bonding and occluding force, effectively exerts the toughness advantage of the bonding material, and effectively reduces the cracking problem caused by compression due to the fact that the blank bottom is of a networking structure of mutually cross-linked netlike flat layers except for the pit, thereby ensuring that the porcelain plate has extremely high bending strength, and is fully combined with the bonding material below after being applied into a whole, so that the porcelain plate is of an integral structure extending from the top surface to the underground bonding layer to the ground, obviously, on one hand, the porcelain plate can have larger specific surface area when being applied, the pressure born by the porcelain plate is diffused and transmitted along the side wall of the pit, and the direct pressure on the front surface is decomposed; on the other hand makes porcelain board shop paste and forms the integral structure after bonding for the bending strength of porcelain board is compared and is showing the improvement in bending strength when independently existing, and anti friction is bigger, and the panel of shallow unsmooth shading promotes with the easy not hard up cohesive force of cohesive material under rather than obviously, more can satisfy actual needs.
2. According to the ceramic plate with the one-step formed bottom surface containing the preset shape, due to the innovative design of the structure of the pit defined by the parameters, firstly, the specific surface area of the bottom surface of the blank is increased, so that the increase of the oxidation exhaust area during drying and firing of a kiln is facilitated, the firing time is shortened, and the production quality is improved; secondly, in the pressing process of the powder, the design that the opening of the pit in the concave pit is larger than 10 degrees < a < 75 degrees of the bottom of the pit is adopted, the easy demoulding state between a die and the powder in the pressing process is ensured, the design is also used for pushing the powder to an adjacent position in the pressing process, the density of the pit bottom and a flat blank layer is relatively uniform, the blank demoulding and expansion of the porcelain plate is uniform, the water drainage, oxidation and exhaust are uniform in the drying and firing processes, and further the brick is not cracked in the firing process in the production under the design scheme, the oxidation is good, the color difference is small, the improvement of the product quality is realized, and the design is more stable and reliable in the actual production.
3. The invention provides a method for manufacturing a ceramic plate with a preset shape on the bottom surface, which has the advantages that on one hand, the shape design of concave pits greatly saves the weight of a blank body and materials compared with the integral plate with shallow concave-convex bottom grains, and flat blank layers of the blank bottom among the concave pits are mutually cross-linked to form a mutually interlaced net-shaped structure, so the bearing and bending strength of the plate is well kept, the energy consumption for firing when manufacturing the ceramic plate is greatly saved, on the other hand, raw materials prepared on the production source are greatly reduced, so the weight cost of each link in the transportation and turnover process of the raw materials required by transporting and preparing products with the same weight is greatly reduced, the reduction of the load and the saving of the cost are obvious, the method is more in line with the development directions of green, low carbon and environmental protection, and the low carbon development trend, in addition, when the ceramic blank body adopting light formula raw materials is applied, by combining the advantages of the invention with the light porcelain body, when the product is applied to a wall surface dry-hanging curtain wall, the wall surface load can be effectively reduced, so that the product has better market application prospect.
4. The invention provides a method for manufacturing a ceramic plate with a preset shape on the bottom surface by one-step molding, which belongs to the field of ceramic product production, adopts a ceramic ink jet machine to spray color ink for ceramics on the surface of the product of the invention to form a preset color pattern, then applies materials such as glaze, dry particles and the like to perform decoration effect treatment on the surface layer, can prepare rich and diverse effects that the surface is recovered by collecting various materials such as natural stone, wood grain, cloth grain, water color painting, oil color painting and the like through scanning to form data information and forming a pattern file, and then forms digital ink-jet texture patterns on the surface of the product through spray printing of the ceramic ink jet machine, thereby providing plate products with more surface effects for outdoor paving and applying such as garden bricks, tiles for squares, tiles for landscapes and the like, and adopts a ceramic ink jet machine to perform ink-jet treatment to form various color patterns and apply to a ceramic brick process for industrial mass production, the requirement of people on aesthetic requirements and safety performance is met, which cannot be compared with the monotonous color of the extrusion process of pottery clay or high-moisture porcelain clay and the like and cannot be achieved by the extrusion process.
5. The invention relates to a method for manufacturing a ceramic plate with a preset shape on the bottom surface by one-step molding, which is realized by innovative design and preparation of a mold, matching control of a raw material formula, matching of a press, proper drying and design of a kiln firing system.
6. The invention provides a manufacturing method of a ceramic plate with a preset shape on the bottom surface through one-step forming, which correspondingly provides the innovative design and preparation of a one-step dry pressing forming special-shaped mould for preparing ceramic plates such as squares, districts, gardens and the like through the design of a pit, solves the problem of uniform powder distribution due to pressure conduction, ensures high breaking strength of the ceramic plate, and realizes the pressing of the ceramic plate with the preset designed pit effect on flat cloth.
7. According to the ceramic plate with the preset shape on the bottom surface, which is formed in one step, the solid platform is added in the design shape in a pre-designed mode, an expansion screw can be added after the hole is rapidly opened, and the adjacent concave pits in the position of the solid platform are used as sleeve buckling positions of a fastener and a hanging piece, so that a safe and firm dry hanging mode structure is realized, the ceramic plate can be applied to a dry hanging curtain wall, and the application space of the ceramic plate is improved.
Drawings
FIG. 1 is a perspective view of a press formed green body in one embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of the product of the present invention and a sand patch and a general product and a sand patch;
FIG. 3 is an enlarged view of portion A and portion B under load-bearing pressure in FIG. 2;
FIG. 4 is an enlarged schematic view of portion A and portion B of FIG. 2 under a lateral force;
FIG. 5 is a vertical cross-section of a dimple of the present invention;
FIG. 6 is a perspective view of a ceramic plate according to an embodiment of the present invention;
FIG. 7 is a perspective view of a ceramic plate according to a second embodiment of the present invention;
FIG. 8 is a perspective view of a ceramic plate according to a third embodiment of the present invention;
FIG. 9 is a perspective view of a porcelain plate according to a fourth embodiment of the present invention;
FIG. 10 is a cross-sectional view of the solid platform, suspension member and expansion screw connection structure of the present invention;
FIG. 11 is a schematic view showing a method for manufacturing a ceramic plate having a predetermined shape on the bottom surface thereof by one-time molding according to the present invention;
fig. 12 is a perspective view of a porcelain plate according to a sixth embodiment of the present invention.
Wherein, the technical characteristics that each reference numeral refers to are as follows:
1. a ceramic plate; 11. a blank bottom; 111. a dimple; 112. a solid platform; 113. hanging parts; 114. an expansion screw; 12. carrying out blank jacking; 2. a blank bottom mold; 3. a blank top mold; 4. a ceramic press; 5. a raw material conveying device; 51. feeding a hopper; 52. a collection hopper; 53. a conveyor belt; 6. a delivery roller table; p, bearing external force; s1, a stress transfer area for bearing external force when the ceramic plate with the sunken pits is paved and attached with sand; s2, a stress transfer area for bearing external force when the common porcelain plate is paved and attached with sand; r1, void; t, transverse acting force; a stress transfer area which is used for receiving transverse acting force and is arranged above the U1 pit porcelain plate and the sand when the porcelain plate is paved and attached; u2, a stress transfer area of transverse acting force is applied above the plate when the common porcelain plate is paved and attached with the sand; r2, a meshing position formed by the ceramic plate with the pit and the sandy soil; h1, the product of the invention; h2, common product.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments, but the scope of the present invention is not limited to the following embodiments.
Example one
Referring to fig. 1, 5 and 6, the present embodiment discloses a one-step formed ceramic board 1 with a predetermined shape on the bottom surface, comprising a blank bottom 11 and a blank top 12, wherein the blank bottom 11 is provided with a plurality of recessed pits 111 on the plane, the recessed pits 111 are single independent recessed pits 111, the recessed pits 111 are stepped recessed pits 111 centered on the pit bottom, the blank bottom 11 is provided with a plurality of solid platforms 112, and the solid platforms 112 have an area of 22cm2In the present embodiment, there are four solid platforms 112, and in other embodiments, the number of the solid platforms may be changed according to actual situations. The thickness of the porcelain plate 1 is 15mm and concaveThe deepest depth of each pit 111 is 6mm, the length of the narrowest part of each pit opening of each pit 111 is 8mm, the projection of the pit bottom of each pit 111 on the plane of the figure surrounded by the edge of each pit opening is positioned in the figure surrounded by the edge of each pit opening, the interval between every two adjacent pits 111 is 5mm, and the shape surrounded by the edge of each level of pit opening of each pit 111 is one or the combination of a plurality of circles, ellipses, squares, polygons and abnormity.
The product with the thickness of 600 multiplied by 15.5mm obtained by adopting the design of the sunken pit 111 of the embodiment has the weight of 12Kg and the breaking strength of 60 to 65MPa, and compared with the product with the thickness of 600 multiplied by 15.5mm, the product with the weight of 12.67Kg and the breaking strength of 43 to 47MPa has the advantages of reduced raw material consumption, light weight and better breaking resistance.
Referring to fig. 2, 3 and 4, the porcelain plate 1 of the present invention is applied in a paving manner;
compared with the sand paving and pasting of the porcelain plate 1 and the sand paving and pasting of the common plate and the sand, the modeling design of the pit 111 of the porcelain plate 1 ensures that the sand and the blank bottom 11 of the porcelain plate 1 are fully contacted, and when bearing external force P is borne, the stress transmission of the bearing external force P is sufficiently, uniformly and comprehensively when the pit porcelain plate 1 and the sand are paved and pasted; when the common porcelain plate 1 is paved and adhered with the sandy soil, because of the gap R1 formed by the blank bottom 11 and the sandy soil with inconsistent local shrinkage, when bearing external force P is borne, the stress transmission of the bearing external force P when the common porcelain plate 1 is paved and adhered with the sandy soil is easy to crack due to uneven stress because of the gap R1; in addition, when the porcelain plate 1 is subjected to the transverse acting force T, the pit porcelain plate 1 and the sandy soil form an occlusion state, so that a stress transmission area subjected to the transverse acting force T above the plate is located at an occlusion position when the pit porcelain plate 1 is paved and attached with the sandy soil, the transverse stress is firmer, and the stress transmission area subjected to the transverse acting force T above the plate is basically a parallel area when the common porcelain plate 1 is paved and attached with the sandy soil, and the plate is easy to loosen due to the transverse acting force T.
Referring to fig. 10, the porcelain plate 1 of the present invention is applied to a dry-hang method, and after a hole is formed on a solid platform 112 of the plate, a hanging member 113 is fastened to the solid platform 112 by an expansion screw 114, thereby realizing a safe and firm dry-hang structure.
Example two
Based on the first embodiment, the present embodiment discloses another porcelain plate with a predetermined configuration on the bottom surface thereof, and referring to fig. 7, in the present embodiment, the recessed pits 111 are stepped recessed pits 111 formed by square recessed pits and square recessed pits.
EXAMPLE III
Based on the first embodiment, the present embodiment discloses another ceramic board with a predetermined configuration on the bottom surface formed in one step, referring to fig. 8, in the present embodiment, the recessed pits 111 are stepped recessed pits 111 formed by square recessed pits and oval recessed pits.
Example four
Based on the first embodiment, the present embodiment discloses another ceramic board with a predetermined configuration on the bottom surface formed in one step, referring to fig. 9, in the present embodiment, the recessed pits 111 are stepped recessed pits 111 formed by square recessed pits and various irregular recessed pits.
EXAMPLE five
Referring to fig. 11, the present embodiment discloses a method for manufacturing a ceramic plate 1 dry-pressed and formed by a prefabricated mold, which is used for manufacturing the ceramic plate 1 with a predetermined shape on the bottom surface formed in one step disclosed in the above embodiments, and comprises the following steps:
the method comprises the following steps: designing a model, designing according to the plasticity of a raw material formula, dry physical drainage, structural drainage, oxidation exhaust and sintering drying and firing temperature, designing various parameters of a press-formed green body according to the shrinkage rate, reversely designing a green bottom die 2 and a green top die 3 of a ceramic press 4, and then installing the green bottom die 2 and the green top die 3 on the ceramic press 4 of a production line;
step two: preparing a porcelain raw material for producing the porcelain plate 1;
step three: starting the production equipment, the lower hopper 51 on the raw material conveying device 5 drops the loaded raw materials onto the collecting hopper 52, the collecting hopper 52 comprises a distribution grid (not shown in the figure), and the raw materials are flatly filled into the mold cavity of the ceramic press 4 through a conveying belt 53 and the distribution grid;
step four: pressing and molding the ceramic blank into a blank by using the ceramic press 4 in the step one and feeding the blank to the next process through a conveying roller table 6, as shown in fig. 11;
step five: adjusting the direction to ensure that the linear convex edge of the green body enters a drying kiln to be dried in the vertical direction and is fired into a semi-finished green body by a firing kiln with the maximum temperature of 1220 ℃;
step six: cooling and cutting and edging to obtain a ceramic plate 1 with a preset shape on the bottom surface, which is formed in one step;
preferably, in the step one, the ceramic press 4 is selected as a top pressure type dry pressing ceramic press 4.
Preferably, in the second step, the porcelain raw material is porcelain powder with the water content of 8%.
The shapes of the blank bottom die 2 and the blank top die 3 are reversely designed according to the corresponding shapes of the blank bottom 11 and the blank top 12 of the porcelain plate 1 and by combining the compression molding and shrinkage rate of the porcelain tile, namely the porcelain plate 1 and the blank top die 3 as well as the porcelain plate 1 and the blank bottom die 2 are matched with each other.
EXAMPLE six
Based on the fifth embodiment, in the fifth step, after the drying in the drying kiln and before the firing in the firing kiln, the surface decoration layer treatment of the ink-jet and glaze dry particle process of the predetermined pattern is performed in the glaze line process, and finally the ceramic board 1 of the present invention, which has the ink-jet texture on the surface and is formed by dry pressing the prefabricated mold, is obtained, as shown in fig. 12.
Variations and modifications to the above-described embodiments may occur to those skilled in the art, which fall within the scope and spirit of the above description. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and variations of the present invention should fall within the scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims (10)
1. A one-shot ceramic panel having a predetermined configuration in its underside, comprising a base (11) and a top (12), characterized in that said base (11) is provided with a plurality of depressions (111), said depressions (111) being individual free-standing depressions (111), said base (11) being provided with a plurality of solid platforms (112).
2. The ceramic plate with the primary molded bottom surface having the predetermined configuration according to claim 1, wherein the thickness of the ceramic plate (1) is 12 to 30mm, and a projection of a plane of a pit bottom of each of the recessed pits (111) on a pattern surrounded by the pit edge is located within the pattern surrounded by the pit edge.
3. The ceramic plate with the primary molded bottom surface having the predetermined configuration as claimed in claim 1, wherein the interval between the recessed pits (111) is not less than 5mm, the recessed pits (111) are stepped recessed pits (111) with the pit bottom as the center, the deepest depth of the recessed pit (111) is not less than 1/4 of the total thickness of the ceramic plate (1), the length of the narrowest part of the pit mouth of the recessed pit (111) is not less than 8mm, and the shape surrounded by the edge of the pit mouth of each step of the recessed pit (111) is one or more of circular, oval, square, polygonal and irregular.
4. The ceramic plate with a predetermined configuration on the bottom surface formed in one step as claimed in claim 1, wherein the area of said solid table (112) is not less than 2cm2。
5. The ceramic board with a predetermined shape on the bottom surface formed in one step as claimed in claim 1, wherein the angle between the inner wall of said depression (111) and the vertical direction is 10 ° to 75 °.
6. The ceramic plate with a predetermined configuration on the bottom surface formed in one step according to claim 1, wherein said ceramic plate (1) has a water absorption of less than 0.5% and a density of not more than 1.95g/cm3Is not less than 2.3g/cm3The ceramic plate (1).
7. A method for manufacturing a ceramic plate with a preset shape on the bottom surface by one-step forming is characterized by comprising the following steps:
the method comprises the following steps: firstly, designing a blank bottom die (2) required for pressing a prepared porcelain plate (1) according to the reverse direction of a porcelain plate with a preset shape on the bottom surface formed in one step as claimed in any one of claims 1 to 6, designing a prepared blank top die (3) according to the reverse direction of plane or concave-convex shape, using the prepared blank top die as an upper die and a lower die required for pressing, and installing the prepared blank top die on a ceramic press (4) of a production line;
step two: preparing a porcelain raw material for producing a porcelain plate (1);
step three: ceramic raw materials with required thickness are evenly distributed to the pressing and forming position of the ceramic press (4) through the distribution grid;
step four: pressing and forming into a blank;
step five: conveying the blank into a drying kiln for drying and firing at 1150-1220 ℃ to obtain a semi-finished blank;
step six: cooling and cutting and edging to obtain a finished product of the porcelain plate (1) with the bottom surface containing a preset concave model;
the porcelain raw material is a powder-particle porcelain raw material with the water content not higher than 9%.
8. The manufacturing method according to claim 7, wherein in the first step, the ceramic press (4) is a press type, a roll type or a top pressure type dry press forming ceramic press (4).
9. The method according to claim 7, wherein the bottom mold (11) and the top mold (12) are designed in reverse according to any one of claims 1 to 6, wherein the bottom surface of the one-step molding comprises the corresponding bottom mold (11) and top mold (12) of the porcelain plate with the predetermined shape, and the shrinkage rate of the porcelain powder compression molding and firing is combined, so that the porcelain plate (1) and the bottom mold (2) and the porcelain plate (1) and the top mold (3) are matched and shaped corresponding to a male mold and a female mold.
10. The manufacturing method according to claim 7, wherein the green body after being pressed and formed is dried in the step five, the green body is subjected to a glaze line process to perform ink jet of a predetermined pattern and surface processing treatment of applying glaze and dry particle materials to form a decorative layer, and then the green body is subjected to a firing kiln process to be fired.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010677293.2A CN111734084A (en) | 2020-07-14 | 2020-07-14 | One-step formed ceramic plate with preset shape on bottom surface and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010677293.2A CN111734084A (en) | 2020-07-14 | 2020-07-14 | One-step formed ceramic plate with preset shape on bottom surface and manufacturing method thereof |
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| CN111734084A true CN111734084A (en) | 2020-10-02 |
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Address after: 526124 Bai Tu Yi and ER Cun, Lubu Town, Gaoyao District, Zhaoqing City, Guangdong Province Applicant after: GUANGDONG SUMMIT CERAMICS Co.,Ltd. Applicant after: NEWPEARL CERAMICS GROUP Co.,Ltd. Applicant after: Foshan Sanshuiguanzhu Ceramics Co.,Ltd. Address before: 526124 Bai Er Yi, er Cun, Lubu Town, Gaoyao District, Zhaoqing City, Guangdong Province Applicant before: GUANGDONG SUMMIT CERAMICS Co.,Ltd. Applicant before: NEWPEARL CERAMICS GROUP Co.,Ltd. Applicant before: Foshan Sanshuiguanzhu Ceramics Co.,Ltd. |