CN114702297A - One-time firing process of curved ceramic rock plate - Google Patents
One-time firing process of curved ceramic rock plate Download PDFInfo
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- CN114702297A CN114702297A CN202210444663.7A CN202210444663A CN114702297A CN 114702297 A CN114702297 A CN 114702297A CN 202210444663 A CN202210444663 A CN 202210444663A CN 114702297 A CN114702297 A CN 114702297A
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- arc
- liftable
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- firing
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- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
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- 235000015424 sodium Nutrition 0.000 description 1
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 description 1
- 235000019982 sodium hexametaphosphate Nutrition 0.000 description 1
- 229920005552 sodium lignosulfonate Polymers 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 description 1
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- 239000010456 wollastonite Substances 0.000 description 1
- 229910052882 wollastonite Inorganic materials 0.000 description 1
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/04—Clay; Kaolin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/003—Apparatus or processes for treating or working the shaped or preshaped articles the shaping of preshaped articles, e.g. by bending
- B28B11/005—Using heat to allow reshaping, e.g. to soften ceramic articles
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
- C03C8/02—Frit compositions, i.e. in a powdered or comminuted form
- C03C8/04—Frit compositions, i.e. in a powdered or comminuted form containing zinc
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
- C03C8/14—Glass frit mixtures having non-frit additions, e.g. opacifiers, colorants, mill-additions
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
- C03C8/14—Glass frit mixtures having non-frit additions, e.g. opacifiers, colorants, mill-additions
- C03C8/20—Glass frit mixtures having non-frit additions, e.g. opacifiers, colorants, mill-additions containing titanium compounds; containing zirconium compounds
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/1305—Organic additives
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/131—Inorganic additives
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/32—Burning methods
- C04B33/34—Burning methods combined with glazing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/12—Travelling or movable supports or containers for the charge
- F27D3/123—Furnace cars
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/12—Travelling or movable supports or containers for the charge
- F27D2003/125—Charging cars, lift trolleys
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
- F27M2001/00—Composition, conformation or state of the charge
- F27M2001/15—Composition, conformation or state of the charge characterised by the form of the articles
- F27M2001/1504—Ceramic articles
- F27M2001/1508—Articles of relatively small dimensions
- F27M2001/1513—Plates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
- F27M2003/00—Type of treatment of the charge
- F27M2003/04—Sintering
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Structural Engineering (AREA)
- Dispersion Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Finishing Walls (AREA)
Abstract
The invention discloses a one-time firing process of a curved ceramic rock plate, which comprises the steps of combining a movable platform on two sides of a liftable arc-shaped mould to form a kiln car with a separable plane supporting platform; placing the flat rock slab at a designated position of a separable flat support platform, and then conveying the flat rock slab into a kiln car for heating and firing; heating to harden the planar rock slab, separating the movable platform from the liftable arc-shaped mold, and independently supporting the planar rock slab by the liftable arc-shaped mold; and continuously heating and firing until the plane rock slab is attached to the curved surface of the lifting arc-shaped mould. According to the invention, the plane rock slab is hardened by heating, then the movable platform is separated from the liftable arc-shaped mould, and the plane rock slab is independently supported by the arc-shaped mould for firing, so that the one-time firing of the curved surface ceramic rock slab can be realized, the continuous and automatic production mode can be realized, the energy consumption is low, the efficiency is high, the process controllability is good, and the production cost is low.
Description
Technical Field
The invention relates to the technical field of ceramic rock plates, in particular to a one-time firing process of a curved ceramic rock plate.
Background
The ceramic rock plate originates from Europe, the requirements on the production and processing processes of the rock plate are high, the rock plate is a short name of the ceramic rock plate and is originally introduced into China by Italy and Spain, and the rock plate is used as a novel material and is suitable for the fields of cabinets, furniture, floors, wall surfaces, building facades and the like. Green, environmental protection, wear-resisting high temperature resistant, prevention of seepage and skid resistance, the quality is too hard etc. advantage, and the physical properties of rock plate is far superior to its appearance performance.
From one ceramic slab to the finished furniture, numerous manufacturing processes are required, including cutting, drilling, adhesive polishing, etc. Early ceramic slates were highlighted to be large and thin, leading to global ceramic thinning. Thinning, and indicating the direction for resource saving, green environmental protection, energy conservation and emission reduction; with the breakthrough progress of ceramic production technology and the market development, application innovation and popularization of large plates at home and abroad, the design and color, specification and size and thickness of ceramic rock plates are continuously enriched and diversified, new application fields are developed, new markets are developed, and the global outbreak of the ceramic rock plates in recent years is promoted to be on line.
The ceramic rock plate as a novel natural raw material has the following advantages: for example, the decorative material has the characteristics of resource saving, environmental protection, strong decoration, multi-field application, superior performance and the like. Due to the eight advantages of the rock plate, the rock plate breaks through many application limitations of ceramic tiles and stone materials, can be widely used particularly in the aspect of customized home decoration application, and is favored by consumers in recent years. The application field of the rock plate far exceeds that of ceramics and stones, breaks through a plurality of application limitations of the ceramics and the stones, and can be applied to the fields of building facades, cabinet table tops, furniture panels and the like except for the indoor ground wall related to the traditional ceramics brick, the wall and ground decoration market of bathroom space.
Depending on the large specification and the thin thickness of the rock plate, the design community tries to manufacture a curved surface model with curvature by utilizing the toughness of the rock plate, so that the space has more linear feeling.
In order to meet the curved surface modeling requirement of the design boundary and continuously provide the best quality material for creating a beautiful space, the prior art can realize the limit possibility of a high-bending arc plate with the thickness of 6-9mm and meet the curve aesthetic design requirement.
The design of the curved and straight surface of the rock plate is a worship for the aesthetics of the space design material of the future building, the physical characteristics and the site spirit of the geometric surface of the product are emphasized more importantly, and the design trend of combining the curved and straight surface of the current building and the indoor space is carried forward. The combination of multiple forms such as cylinder, dome, arc corner can be accomplished to curved surface rock plate, for the arc space provides the best solution, keeps the wholeness and the unity of indoor space material, and molding, crookedness can be according to the design requirement customization: can be curved inwards or outwards, has the maximum radian of 120 degrees and can form a round wrapped column by only 3 sheets. The curved rock plate is developed, so that the application space of the rock plate is widened from the ground, the wall surface, the table top, the cabinet, the door, the refrigerator to almost all home spaces such as a circular dome, a vestibule, an arc background wall, a circular bag column and a villa spiral staircase, to the outdoor fields such as cutting and processing of modeling articles such as tea tables and ornaments, and building outer walls.
With the extensive popularization and application of ceramic rock plates in the field of modern architectural decoration, curved rock plates with various radians are increasingly required, and the current production process of the curved rock plates is still only based on the process of secondary processing into hot bending rock plates.
For example, in the prior art, a biscuited rock plate is horizontally placed on a mold with a certain curvature on the surface for secondary processing, the ceramic reaches a softening temperature point along with the rise of the temperature in a furnace, and under the influence of gravity, the ceramic is softened, deformed and downwards bent to be attached to the surface of a grinding tool, so that a curved ceramic plate with the curvature close to that of the grinding tool is formed.
In the prior art, a secondary processing technology is adopted, so that in order to avoid cracking of a green brick caused by the fact that the line contact area of an arc-shaped die and the green brick is too small before firing, the green brick needs to be subjected to primary biscuit firing, and is transferred to an arc furnace for secondary firing after having certain strength, hot bending forming is realized, the secondary processing technology is complex in procedure, a continuous and automatic production mode is lacked, and the problems of long production period, much energy consumption, low efficiency, poor process controllability, high production cost and the like are caused.
Therefore, the prior art is in need of improvement.
Disclosure of Invention
In the prior art, a curved rock plate needs to adopt a secondary processing technology, and the secondary processing technology has complex procedures, so that the problems of incapability of continuous production of products, long production period, more energy consumption waste, low efficiency, poor process controllability, high production cost and the like can be caused.
The present invention aims to alleviate or solve at least to some extent at least one of the above mentioned problems. The invention provides a one-time firing process of a curved ceramic rock plate, which comprises the following steps:
combining the movable platforms on two sides of the liftable arc-shaped mould to form a kiln car with a separable plane supporting platform;
placing the flat rock slab at a designated position of a separable flat support platform, and then conveying the flat rock slab into a kiln by a kiln car for heating and firing;
heating to harden the flat rock slab, then separating the movable platform from the liftable arc-shaped mould, and independently supporting the flat rock slab by the liftable arc-shaped mould;
and continuously heating and firing until the plane rock slab is attached to the curved surface of the liftable arc-shaped mould to form the curved surface ceramic rock slab.
In one embodiment, the step of combining the moving platform on the kiln car on two sides of the liftable arc-shaped mould to form the separable plane supporting platform comprises the following steps:
fixing the arc-shaped die body on a lifting platform of a kiln car to form a liftable arc-shaped die;
adjusting the height of the liftable arc-shaped mould to enable the arc top of the liftable arc-shaped mould and the movable platform to be in the same horizontal position;
the movable platforms on the left side and the right side are respectively driven to move to the two sides of the liftable arc-shaped die, and the movable platforms and the liftable arc-shaped die are combined to form a separable plane supporting platform.
In an embodiment, the moving platforms respectively driving the left side and the right side move to two sides of the liftable arc-shaped mold, and in the step of forming the separable plane supporting platform by combining the moving platforms and the liftable arc-shaped mold, a transverse gap is formed between the moving platforms and the liftable arc-shaped mold and used for upwards lifting the liftable arc-shaped mold.
In one embodiment, the lateral gap ranges from 5cm to 10 cm.
In one embodiment, in the step of placing the flat rock slab at a designated position of the separable flat support platform and then delivering the flat rock slab into the kiln by the kiln car for heating and firing, the central axis of the flat rock slab coincides with the arc top of the liftable arc-shaped mould.
In one embodiment, the step of placing the flat rock slab at a designated position of the separable flat support platform and then feeding the flat rock slab into the kiln by the kiln car for temperature rise firing further comprises the following steps:
putting the raw materials in the flat rock slab into a ball mill according to a formula ratio, uniformly mixing to obtain slurry, sieving, ageing, removing iron, then carrying out spray granulation to obtain powder with a particle size suitable for requirements, putting the powder into a powder bin, ageing to make the powder uniform in moisture, then carrying out compression molding on the powder, and drying in a drying kiln to obtain a blank with certain strength;
after drying the blank body, applying ground coat by a high-pressure glaze spraying cabinet to form a ground coat on the blank body;
printing the required decorative pattern on the ground glaze layer by ink jet to form an ink jet decorative effect blank;
and applying transparent full-polished surface glaze on the inkjet decorative effect blank by using a high-pressure glaze spraying cabinet to form the planar rock slab with the decoration in the glaze.
In one embodiment, the heating to raise the temperature to harden the planar rock slab, and then separating the moving platform from the liftable arc mold, the step of independently supporting the planar rock slab by the liftable arc mold comprising:
heating the kiln to 850-1000 ℃;
continuously firing the flat rock slab for 0.5-1 h at the temperature of 850-1000 ℃;
the liftable arc-shaped mould is controlled to upwards rise, so that the plane rock slab is separated from the moving platforms on two sides, the plane rock slab is independently supported by the liftable arc-shaped mould, the moving platform is driven to move away from one side of the liftable arc-shaped mould, and the liftable arc-shaped mould is used for providing a deformation space for the ceramic tile.
In one embodiment, the step of continuing the temperature-rising firing until the flat rock slab is attached to the curved surface of the liftable arc-shaped mold to form the curved-surface ceramic rock slab comprises the following steps: the temperature of the kiln is increased to 1165 to 1185 ℃.
In one embodiment, the step of continuing to increase the temperature and fire until the flat rock slab is attached to the curved surface of the liftable arc-shaped mold to form the curved-surface ceramic rock slab further comprises: continuously firing for 0.5-1 h at the temperature of 1165-1185 ℃ so that the planar rock slab is attached to the curved surface of the lifting arc-shaped mould to form the curved surface ceramic rock slab.
In one embodiment, in the step of combining the moving platform on the kiln car on two sides of the liftable arc-shaped mould to form the separable plane supporting platform, the kiln car comprises:
a kiln car body;
the movable support platform assembly comprises two movable platforms, wherein each movable platform comprises a platform support, a first moving member and a roller platform consisting of a plurality of roller members, the first moving member is arranged on the platform support, the platform support is in sliding connection with the kiln car body through the first moving member, and the roller platform is positioned on the platform support;
liftable formula arc mould, liftable formula arc mould set up in on the kiln car body, and be located two between two moving platform, liftable formula arc mould through lifting movement and have keep equal in roll the first state of roller platform and have protrusion in roll the second state on the roller platform, and when the second state, moving platform deviates from liftable formula arc mould removes one side, be used for liftable formula arc mould provides the deformation space for the pottery brick.
The one-time firing process of the curved ceramic rock plate provided by the invention has the beneficial effects that:
the invention provides a one-time firing process of a curved ceramic rock plate, which comprises the steps of combining a movable platform on two sides of a liftable arc-shaped mould to form a kiln car with a separable plane supporting platform; placing the flat rock slab at a designated position of a separable flat support platform, and then conveying the flat rock slab into a kiln car for heating and firing; heating to harden the planar rock slab, separating the movable platform from the liftable arc-shaped mold, and independently supporting the planar rock slab by the liftable arc-shaped mold; and continuously heating and firing until the plane rock slab is attached to the curved surface of the liftable arc-shaped mould to form the curved surface ceramic rock slab. According to the invention, the plane rock slab blank is hardened by heating, then the movable platform is separated from the lifting arc-shaped mould, and the lifting arc-shaped mould independently supports the plane rock slab blank for firing, so that the one-time firing of the curved ceramic rock slab can be realized, the continuous and automatic production mode can be realized, the energy consumption is low, the efficiency is high, the process controllability is good, and the production cost is low.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic flow chart of a one-time firing process of a curved ceramic rock plate provided by an embodiment of the invention;
FIG. 2 is a schematic flow chart of the assembly of the separable planar supporting platform according to the embodiment of the present invention;
fig. 3 is a schematic flow chart of manufacturing a flat rock slab according to an embodiment of the present invention;
FIG. 4 is a schematic flow chart of the separable planar supporting platform according to the embodiment of the present invention;
fig. 5 is a schematic flow chart of the process of attaching the flat rock slab to the curved surface of the liftable arc-shaped mold according to the embodiment of the present invention;
fig. 6 is a schematic flow chart of a specific example of a primary firing process of a curved ceramic rock plate according to an embodiment of the present invention.
FIG. 7 is a schematic flow chart of a specific application of a single firing process for curved ceramic rock panels provided in an embodiment of the present invention;
FIG. 8 is a schematic structural diagram of a kiln car provided in an embodiment of the invention;
fig. 9 is a schematic structural diagram of a mobile platform according to an embodiment of the present invention;
FIG. 10 is a schematic view of a kiln car provided in an embodiment of the invention;
fig. 11 is an enlarged view of a portion a in fig. 10.
FIG. 12 is a schematic view of a state in which a liftable arc mold independently supports a slab of flat rock according to an embodiment of the present invention;
fig. 13 is a schematic view of a state in which a flat rock slab is attached to a liftable arc mold according to an embodiment of the present invention.
Wherein, in the figures, the respective reference numerals:
100. a kiln car body; 200. a mobile support platform assembly; 300. a lifting arc-shaped die; 400. a lateral gap; 500. a flat rock slab; 110. a kiln car frame; 120. a kiln car driving motor; 130. kiln car wheels; 140. a first track; 141. a rail lock; 200a, a mobile platform; 210. a platform support; 220. a first moving member; 230. a roll platform; 240. a pull ring; 211. a stent body; 212. a cantilever support; 231. a roller member; 310. a lifting stay bar; 320. an arcuate mold assembly; 321. a mold platform; 322. an arc-shaped die body; 323. a height adjusting plate.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly or indirectly disposed on the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positions based on the orientations or positions shown in the drawings, and are for convenience of description only and not to be construed as limiting the technical solution. The terms "first", "second" and "first" are used merely for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "plurality" is two or more unless specifically limited otherwise.
In the prior art, a secondary processing technology is adopted for producing the curved surface ceramic rock plate, in order to avoid cracking of a green brick caused by the fact that the line contact area between an arc-shaped die and the green brick is too small before firing, the green brick needs to be subjected to primary biscuit firing, and is transferred to the arc furnace to be subjected to secondary firing after having certain strength, so that hot bending forming is realized, the secondary processing technology is complex in procedure, a continuous and automatic production mode is lacked, and the problems of long production period, much energy consumption waste, low efficiency, poor process controllability, high production cost and the like are caused.
In order to solve the problems, the invention provides a one-time firing process of a curved ceramic rock plate, which comprises the steps of combining a movable platform on two sides of a liftable arc-shaped mould to form a kiln car with a separable plane supporting platform; placing the flat rock slab at a designated position of a separable flat support platform, and then conveying the flat rock slab into a kiln by a kiln car for heating and firing; heating to harden the flat rock slab, then separating the movable platform from the liftable arc-shaped mould, and independently supporting the flat rock slab by the liftable arc-shaped mould; and continuously heating and firing until the plane rock slab is attached to the curved surface of the liftable arc-shaped mould to form the curved surface ceramic rock slab.
Various non-limiting embodiments of the present invention are described in detail below with reference to the accompanying drawings.
Referring to fig. 1, the embodiment provides a one-time firing process of a curved ceramic rock plate, wherein the process includes the following steps:
s100, combining the moving platforms on two sides of the liftable arc-shaped mould to form the kiln car with the separable plane supporting platform.
In this embodiment, referring to fig. 8, the moving platform 220a is combined on both sides of the liftable arc mold 300 to form a kiln car having a separable flat supporting platform for supporting a flat rock slab 500, wherein the kiln car comprises: the kiln car comprises a kiln car body 100, a movable supporting platform assembly 200 consisting of two movable platforms 220a and a liftable arc-shaped mould 300. Referring to fig. 9, the mobile platform 200a includes: roller platform 230 that platform support 210, first moving member 220, pull ring 240 and a plurality of roller 231 are constituteed, liftable formula arc mould 300 set up in on the kiln car body 100, and be located two between the moving platform 200a, liftable formula arc mould 300 through lifting movement and have keep an equal level in roll roller platform 230's the first state and have protrusion in roll roller platform 230 is last the second state, and when the second state, moving platform 200a deviates from liftable formula arc mould 300 one side is removed, is used for liftable formula arc mould 300 provides the deformation space for the pottery brick. Referring to fig. 10 and 11, a transverse gap 400 is provided between the movable platform 220a and the liftable arc mold 300, and is used for the liftable arc mold 300 to ascend upward, that is, the transverse gap 400 is used to provide a sufficient space for the liftable arc mold 300 to ascend and descend, preferably, the range of the transverse gap 400 is 5cm to 10cm, so that the liftable arc mold 300 can ascend upward, and can form a separable plane supporting platform with the movable platform 220a to support the plane rock slab 500.
Referring to fig. 8, the kiln car body 100 includes a kiln car frame 110, a kiln car driving motor 120, and kiln car wheels 130. The kiln car driving motor 120 and the lifting driving motor are arranged at the bottom of the kiln car frame 110, the lifting driving motor is fixed in the lifting base, the kiln car driving motor 120 is fixed at the bottom of the kiln car frame 110, the kiln car driving motor 120 is in transmission connection with kiln car wheels 130, the kiln car driving motor 120 is used for driving the kiln car wheels 130 to rotate and is used for achieving movement of the kiln car body 100, and the driving motor and the lifting driving motor are both subjected to heat insulation treatment.
Referring to fig. 9, the mobile platform 200a includes: platform support 210, first moving member 220, pull ring 240 and roller platform 230 that a plurality of roller 231 are constituteed, first moving member 220 sets up on platform support 210, and platform support 210 is through first moving member 220 and kiln car body 100 sliding connection, be provided with first track 140 on the kiln car body 100, specifically be the kiln car body 100 left and right sides is provided with a set of first track 140 respectively, first track 140 is used for with first moving member 220 sliding connection, and be provided with track locking member 141 on the first track 140, track locking member 141 is used for preventing to move platform 200a roll-off outside first track 140. The roller platform 230 is located on the platform support 210, when the first state is detected, the liftable arc-shaped mold 300 is flush with the roller platform 230 (i.e. the liftable arc-shaped mold 300 and the roller platform 230 are located at the same horizontal plane), the pull ring 240 is arranged on the platform support 210, and the pull ring 240 is used for driving the platform support 210 to slide, for example, an operation hole is formed in the kiln, the pull ring 240 on the movable platform 200a is driven through the operation hole, so that the movable platform 200a can be moved, and the movable platform 200a can be separated from the liftable arc-shaped mold 300. The first moving member 220 may be a guide wheel with a groove, and the guide wheel is slidably connected to the first rail 140 to realize the directional sliding of the moving platform 200a on the kiln car body 100.
Referring to fig. 9, the platform bracket 210 includes: the support main part 211 and the support 212 of encorbelmenting, the support 212 of encorbelmenting is fixed connection with the support main part 211 and is extended to outside the facade of support main part 211 for hang locate on liftable formula arc mould 300.
Referring to fig. 10, the liftable arc mold 300 includes: the kiln car comprises a lifting base, a lifting support rod 310 and an arc-shaped mould component 320, wherein the lifting base is fixedly connected with the kiln car body 100, the lifting support rod 310 is arranged on the lifting base, the arc-shaped mould component 320 is fixedly connected with the lifting support rod 310, and the arc-shaped mould component 320 is driven by the lifting support rod 310 to move up and down. The lifting support rod 310 includes a lifting driving motor and a telescopic lifting rod, the lifting driving motor is in transmission connection with the telescopic lifting rod, and the lifting driving motor is used for driving the telescopic lifting rod to move up and down.
Referring to fig. 10, the arcuate mold assembly 320 includes: the mold comprises a mold platform 321, an arc-shaped mold body 322 and a height adjusting plate 323, wherein the mold platform 321 is fixedly connected with a lifting support rod 310, the arc-shaped mold body 322 is fixed on the mold platform 321, the height adjusting plate 323 is located between the mold platform 321 and the arc-shaped mold body 322, please refer to fig. 5, when the arc-shaped mold bodies 322 with different heights are replaced, the top point of the arc-shaped mold body 322 can be kept level with the moving platforms 200a on two sides through adjusting the height adjusting plate 323, and the arc-shaped mold body 322 can be conveniently and rapidly adjusted and used. Wherein, the lifting base, the lifting stay bar 310 and the mould platform 321 form a lifting platform of the kiln car.
In this embodiment, both the platform bracket 210 and the mold platform 321 may be made of light mullite material; the roller member 321, the pull ring 240, the guide wheel, the first rail 140 and the kiln car wheel 130 are made of alumina or zirconia with higher hardness; the arcwall face of arc mould body 322 then is formed by the good high temperature resistant material preparation of heat conductivity, if: one or more of silicon aluminum plate, silicon molybdenum plate, silicon carbide plate and the like are processed.
Specifically, referring to fig. 2, step S100 includes the following steps:
s110, fixing the arc-shaped die body on a lifting platform of the kiln car to form a lifting arc-shaped die.
And S120, adjusting the height of the liftable arc-shaped mould to enable the arc top of the liftable arc-shaped mould and the moving platform to be positioned at the same horizontal position (to enable the arc top of the liftable arc-shaped mould and the moving platform to be positioned at the same horizontal plane).
S130, respectively driving the moving platforms on the left side and the right side to move to the two sides of the liftable arc-shaped mold, and combining the moving platforms with the liftable arc-shaped mold to form a separable plane supporting platform.
S200, placing the flat rock slab at a designated position of the separable flat support platform, and then sending the flat rock slab into a kiln by a kiln car for heating and firing.
The plane rock slab is placed at the designated position of the separable plane supporting platform, wherein the designated position refers to the coincidence of the central axis of the plane rock slab and the arc top of the liftable arc-shaped mould, when the movable platforms at the two sides are separated later, the plane rock slab is independently supported by the arc top of the liftable arc-shaped mould, and can be kept balanced and cannot be deviated to turn on one side.
Specifically, referring to fig. 3, step S200 further includes the following steps:
s210, putting the raw materials in the flat rock slab into a ball mill according to a formula ratio, mixing uniformly to obtain slurry, sieving the slurry, ageing, removing iron, and then carrying out spray granulation to obtain powder with a particle size suitable for requirements, putting the powder into a powder bin for ageing to make the powder uniform in moisture, then carrying out compression molding on the powder, and drying in a drying kiln to obtain a green body with certain strength;
and S220, after the blank body is dried, applying base coat through a high-pressure glaze spraying cabinet to form a base coat layer on the blank body.
And S230, ink-jet printing the required decorative pattern on the ground glaze layer to form an ink-jet decorative effect blank.
S240, applying transparent full-polished surface glaze on the inkjet decoration effect blank by using a high-pressure glaze spraying cabinet to form a planar rock slab with decoration in the glaze.
The formula of the plane rock slab for producing the curved surface ceramic rock slab comprises the following components: 20-40 parts of kaolin, 0-10 parts of ball clay, 0-10 parts of wollastonite, 0-8 parts of black talc, 5-15 parts of potassium feldspar, 10-30 parts of albite, 0-10 parts of quartz, 0.5-3 parts of a blank reinforcing agent and 0.5-1.5 parts of a blank debonding agent.
Specifically, the flat rock slab comprises the following chemical components in percentage by weight: SiO 22：65～71％、Al2O3：15～25％、K2O：1～3％、Na2O：1～3％、CaO：0.1～1.0％、MgO：0.2～2.0％、ZnO：0～0.1％、BaO：0～0.1％、TiO2：0～1％、Fe2O3：0.1～0.3％、ZrO2：1.0～3.0％、B2O3：0～0.1％。
Wherein the blank reinforcing agent comprises one or more of sodium lignosulfonate, sodium carboxymethyl starch (CMS), polyvinyl alcohol (PVA) and sodium carboxymethyl cellulose (CMC).
The green body debonder can comprise sodium tripolyphosphate, sodium hexametaphosphate, sodium humate, and liquid debonder, for example, water glass can be used as the green body debonder.
The formula of the ground glaze for producing the curved surface ceramic rock plate comprises the following components: 50-70 parts of potash feldspar, 8-25 parts of kaolin, 2-7 parts of quartz, 5-10 parts of calcined talc, 0-5 parts of alumina, 0-20 parts of zirconium silicate, 5-10 parts of calcium carbonate, 0.3-0.5 part of sodium tripolyphosphate and 0.1-0.2 part of sodium carboxymethylcellulose (CMC).
Specifically, the ground coat comprises the following chemical components in percentage by weight: SiO 22：60～65％、Al2O3：8～12％、K2O：5～7％、Na2O：1～5％、CaO：2～7％、MgO：2～5％、ZnO：0～0.5％、TiO2：0～0.5％、Fe2O3：0～0.5％、ZrO2：0～0.5％。
The formula of the transparent full-polished overglaze for producing the curved ceramic rock plate comprises the following components: 35-45 parts of frit, 5-10 parts of kaolin, 0-10 parts of quartz, 5-30 parts of albite, 5-20 parts of potassium feldspar, 0-10 parts of dolomite, 3-7 parts of calcite, 0-8 parts of barium carbonate, 0.3-0.4 part of sodium tripolyphosphate and 0.1-0.2 part of sodium carboxymethylcellulose (CMC).
Specifically, the transparent full-polished overglaze comprises the following chemical components in percentage by weight: SiO 22：55～68％、Al2O3：4～10％、Na2O+K2O：3～10％、CaO：1～7％、MgO：0～5％、ZnO：1～5％、BaO：3～10％、Li2O：0-2％、B2O3：0～5％。
The frit comprises the following chemical components in percentage by weight: SiO 22：55～60％、Al2O3：15～20％、K2O：3～1.5％、Na2O：5～12％、CaO：0.1～0.5％、MgO：1.0～2％、ZnO：0.1～0.5％、TiO2：0～1％、Fe2O3：0.1～0.3％、B2O3：3～7％、Li2O：0～3％。
S300, heating to harden the planar rock slab, then separating the moving platform from the liftable arc-shaped mold, and independently supporting the planar rock slab by the liftable arc-shaped mold.
Specifically, referring to fig. 4, step S300 includes the following steps:
s310, heating the kiln to 850-1000 ℃.
S320, continuously firing the flat rock slab for 0.5-1 h at the temperature of 850-1000 ℃;
s330, controlling the liftable arc-shaped mould to upwards rise to enable the plane rock slab to be separated from the moving platforms on the two sides, independently supporting the plane rock slab by the liftable arc-shaped mould, as shown in figure 12, driving the moving platform to move away from one side of the liftable arc-shaped mould, and enabling the liftable arc-shaped mould to provide a deformation space for the ceramic tile.
In the production process of the curved ceramic rock slab, when the kiln is heated to a certain temperature, the planar rock slab is gradually hardened in the process of heating, when the temperature reaches a certain temperature and the planar rock slab is continuously fired for a period of time, the planar rock slab can be independently supported by the liftable arc-shaped mold, for example, in the embodiment, the hardening temperature range of the planar rock slab is 850-1000 ℃, at the moment, the planar rock slab can be continuously fired for 0.5-1 h in the temperature range of 850-1000 ℃ so as to be hardened, then the liftable arc-shaped mold is controlled to be lifted upwards, so that the planar rock slab is separated from the moving platforms on two sides, the liftable arc-shaped mold independently supports the planar rock slab, and drives the moving platform to move away from one side of the liftable arc-shaped mold, so that the liftable arc-shaped mold can provide a deformation space for the ceramic tile.
And S400, continuing heating and firing until the planar rock slab is attached to the curved surface of the liftable arc-shaped mould to form the curved-surface ceramic rock slab.
Specifically, referring to fig. 5, step S400 includes the following steps:
s410, heating the kiln to 1165-1185 ℃.
And S420, continuously firing for 0.5-1 h at the temperature of 1165-1185 ℃ so that the planar rock slab is attached to the curved surface of the liftable arc-shaped mould to form the curved-surface ceramic rock slab.
When the temperature in the kiln reaches 1165-1185 ℃, the flat rock slab can be softened and continuously fired for 0.5-1 hour, so that the flat rock slab can be completely attached to the curved surface of the liftable arc-shaped mold, as shown in fig. 13, and finally the curved-surface ceramic rock slab is formed.
Referring to fig. 6, the following steps may be further performed after step S400:
s500, the curved surface ceramic rock plate enters a cooling stage of the kiln.
S600, taking down the fired curved ceramic rock plate from the liftable arc-shaped die, performing rough polishing, fine polishing, waxing, water jet cutting and glaze surface film pasting, packaging the curved ceramic rock plate, and warehousing the packaged ceramic rock plate.
And then, experimental research can be carried out on the curved surface ceramic rock plate, the curvature range of the once-fired curved surface ceramic rock plate, the high-temperature deformation resistance of the curved surface ceramic rock plate and the roller bar pattern defect possibly generated in high-temperature firing are detected, and the curved surface ceramic rock plate is ensured to reach the related quality index.
In the embodiment, the one-time firing temperature is 1165-1185 ℃, the water absorption rate is less than 0.1%, the firing period is 4-12 h, and the formula of the curved ceramic rock plate of the multi-element composite flux system is combined, so that the deformation and technical requirements of the corresponding product under different process conditions are met, and finally the processing performance of the curved ceramic rock plate finished product meets the requirements. In the subsequent cold processing process, the defects of no cutting crack, corner drop, bottom edge collapse and the like in the later bridge cutting machine or water jet cutting and hole drilling processing can be overcome, and the technical bottlenecks of performance change, glaze crack, color enlargement and the like of the hot bent plate subjected to secondary processing commonly existing in the industry are broken through in the embodiment.
The invention is described in detail below by means of a specific example:
in one embodiment, referring to fig. 7, a single firing process of a curved ceramic rock plate in an embodiment of the present invention includes the following steps:
and S11, preparing the blank.
S12, wet ball milling.
And S13, homogenizing and detecting the slurry.
S14, ageing the slurry, and sieving to remove iron.
S15, spraying coarse grains. The method refers to that the mud material is processed into powder material through a spray tower at high temperature.
S16, ageing the powder, and sieving to remove iron.
And S17, pressing and forming.
And S18, trimming and cleaning the green body.
And S19, drying the green body.
And S20, applying base coat under high pressure.
And S21, drying.
And S22, ink-jet printing decoration.
And S23, applying transparent full-polishing surface glaze under high pressure.
And S24, forming the plane rock slab with the glaze decoration.
And S25, placing the flat rock slab at the designated position of the separable flat support platform, and then sending the flat rock slab into the kiln by the kiln car for heating and firing.
S26, heating to harden the flat rock slab, then separating the moving platform from the lifting arc-shaped mould, and independently supporting the flat rock slab by the lifting arc-shaped mould.
And S27, continuously heating and firing until the flat rock slab is attached to the curved surface of the lifting arc-shaped mould to form the curved-surface ceramic rock slab.
The making of the ground glaze is required before the step S20, and the making method specifically comprises the following steps:
and S31, preparing a ground glaze.
S32, wet ball milling.
S33, detecting, sieving and removing iron.
And S34, ageing the ground coat.
Wherein, before the step 23, the transparent full-polished overglaze is required to be manufactured, and the method specifically comprises the following steps:
and S41, preparing overglaze.
S42, wet ball milling.
S43, detecting, sieving and removing iron.
And S44, ageing the overglaze.
Wherein, the detachable plane supporting platform needs to be assembled before the step 25, and the method specifically comprises the following steps:
and S51, combining the moving platforms on two sides of the liftable arc-shaped mould to form the kiln car with the separable plane supporting platform.
The one-time firing process of the curved ceramic rock plate can be applied to the production of the curved ceramic rock plate with the thickness of 6-9mm, wherein the one-time firing process of the curved ceramic rock plate provided by the invention has the beneficial effects that at least:
the invention provides a one-time firing process of a curved ceramic rock plate, the curved ceramic rock plate produced by one-time firing can meet the requirements of the defects of cutting crack, corner breakage, edge deletion and the like during later-stage water jet cutting, and the curved ceramic rock plate has good toughness, high thermal stability and performances of corrosion resistance, radioactivity and the like which can meet relevant industrial standards.
The invention avoids the damage rate increase and the cost increase caused by product transportation in an intermittent processing mode.
The invention replaces the processing and manufacturing mode of producing the curved ceramic rock plate intermittently, realizes the continuous cycle production of the curved ceramic rock plate and greatly improves the production efficiency of the product.
The invention is beneficial to realizing the automation of the production of the curved surface ceramic rock plate through continuous production, optimizes the sintering process and reduces the sintering cost of the curved surface ceramic rock plate.
In conclusion, the invention provides a one-time firing process of a curved ceramic rock plate, which comprises the steps of combining a movable platform on two sides of a liftable arc-shaped mould to form a kiln car with a separable plane supporting platform; placing the flat rock slab at a designated position of a separable flat support platform, and then conveying the flat rock slab into a kiln by a kiln car for heating and firing; heating to harden the planar rock slab, separating the movable platform from the liftable arc-shaped mold, and independently supporting the planar rock slab by the liftable arc-shaped mold; and continuously heating and firing until the plane rock slab is attached to the curved surface of the liftable arc-shaped mould to form the curved surface ceramic rock slab. According to the invention, the plane rock slab blank is hardened by heating, then the movable platform is separated from the lifting arc-shaped mould, and the lifting arc-shaped mould independently supports the plane rock slab blank for firing, so that the one-time firing of the curved ceramic rock slab can be realized, the continuous and automatic production mode can be realized, the energy consumption is low, the efficiency is high, the process controllability is good, and the production cost is low.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The once-firing process of the curved ceramic rock plate is characterized by comprising the following steps of:
combining the movable platforms on two sides of the liftable arc-shaped mould to form a kiln car with a separable plane supporting platform;
placing the flat rock slab at a designated position of a separable flat support platform, and then conveying the flat rock slab into a kiln by a kiln car for heating and firing;
heating to harden the planar rock slab, separating the movable platform from the liftable arc-shaped mold, and independently supporting the planar rock slab by the liftable arc-shaped mold;
and continuously heating and firing until the plane rock slab is attached to the curved surface of the liftable arc-shaped mould to form the curved surface ceramic rock slab.
2. The process of one firing of curved ceramic rock plates as claimed in claim 1, wherein said step of assembling the movable platforms on the kiln car on both sides of the liftable curved molds to form separable planar support platforms comprises:
fixing the arc-shaped die body on a lifting platform of a kiln car to form a liftable arc-shaped die;
adjusting the height of the liftable arc-shaped mould to enable the arc top of the liftable arc-shaped mould and the movable platform to be in the same horizontal position;
the movable platforms on the left side and the right side are respectively driven to move to the two sides of the liftable arc-shaped die, and the movable platforms and the liftable arc-shaped die are combined to form a separable plane supporting platform.
3. The process for firing a curved ceramic rock plate according to claim 2, wherein the moving platforms respectively driving the left and right sides are moved to both sides of the liftable curved mold, and in the step of forming the separable flat supporting platform by combining the moving platforms and the liftable curved mold, a lateral gap is provided between the moving platforms and the liftable curved mold for the liftable curved mold to be lifted upward.
4. The process for single firing of curved ceramic rock panels as claimed in claim 3, wherein said transverse gap is in the range of 5cm to 10 cm.
5. The process for single-firing of curved ceramic rock panels as claimed in claim 1, wherein said step of placing the flat rock slab at a predetermined position on a detachable flat support platform and then firing the slab by feeding it from a kiln car into the kiln at an elevated temperature, the central axis of the flat rock slab coincides with the crown of the raised and lowered arc-shaped mold.
6. The process for single firing of curved ceramic rock panels as claimed in claim 1, wherein said step of placing the flat rock panel blank in a designated position on a detachable flat support platform and then firing the flat rock panel blank by the kiln car into the kiln for elevated temperature firing further comprises:
putting the raw materials in the flat rock slab into a ball mill according to a formula ratio, uniformly mixing to obtain slurry, sieving, ageing, removing iron, then carrying out spray granulation to obtain powder with a particle size suitable for requirements, putting the powder into a powder bin, ageing to make the powder uniform in moisture, then carrying out compression molding on the powder, and drying in a drying kiln to obtain a blank with certain strength;
after drying the blank body, applying base coat by a high-pressure glaze spraying cabinet to form a base coat layer on the blank body;
printing the required decorative pattern on the ground glaze layer by ink jet to form an ink jet decorative effect blank;
and applying transparent full-polished surface glaze on the ink-jet decorative effect blank by using a high-pressure glaze spraying cabinet to form a planar rock slab with decoration in the glaze.
7. The process of one firing of a curved ceramic rock plate as claimed in claim 1, wherein said heating to raise the temperature hardens the planar rock plate blank, and thereafter separating the moving platform from the liftable arc mold, the step of independently supporting the planar rock plate blank by the liftable arc mold comprising:
heating the kiln to 850-1000 ℃;
continuously firing the flat rock slab for 0.5-1 h at the temperature of 850-1000 ℃;
the liftable arc-shaped mould is controlled to upwards rise, so that the plane rock slab is separated from the moving platforms on the two sides, the plane rock slab is independently supported by the liftable arc-shaped mould, the moving platform is driven to move away from one side of the liftable arc-shaped mould, and the liftable arc-shaped mould is used for providing a deformation space for the ceramic tile.
8. The process of one firing of a curved ceramic rock plate as claimed in claim 1, wherein said step of continuing to heat the flat rock slab until it conforms to the curved surface of the liftable curved mold to form a curved ceramic rock plate comprises: the kiln is heated to 1165-1185 ℃.
9. The process of one firing of a curved ceramic rock plate of claim 8, wherein the step of continuing the elevated temperature firing until the planar rock slab conforms to the curved surface of the liftable curved mold to form the curved ceramic rock plate further comprises: continuously firing for 0.5-1 h at the temperature of 1165-1185 ℃ so that the planar rock slab is attached to the curved surface of the lifting arc-shaped mould to form the curved surface ceramic rock slab.
10. The process of one firing of curved ceramic rock plates as claimed in claim 1, wherein in the step of forming the separable planar supporting platform by combining the moving platform on both sides of the liftable arc-shaped mold on a kiln car, the kiln car comprises:
a kiln car body;
the movable support platform assembly comprises two movable platforms, wherein each movable platform comprises a platform support, a first moving member and a roller platform consisting of a plurality of roller members, the first moving member is arranged on the platform support, the platform support is in sliding connection with the kiln car body through the first moving member, and the roller platform is positioned on the platform support;
liftable formula arc mould, liftable formula arc mould set up in on the kiln car body, and be located two between two moving platform, liftable formula arc mould through lifting movement and have keep equal in roll the first state of roller platform and have protrusion in roll the second state on the roller platform, and when the second state, moving platform deviates from liftable formula arc mould removes one side, be used for liftable formula arc mould provides the deformation space for the pottery brick.
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