CN117285328A - Sanitary ware processing method - Google Patents
Sanitary ware processing method Download PDFInfo
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- CN117285328A CN117285328A CN202311333614.7A CN202311333614A CN117285328A CN 117285328 A CN117285328 A CN 117285328A CN 202311333614 A CN202311333614 A CN 202311333614A CN 117285328 A CN117285328 A CN 117285328A
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- slurry
- glaze
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- ceramic
- cosmetic
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- 238000003672 processing method Methods 0.000 title abstract description 15
- 239000002002 slurry Substances 0.000 claims abstract description 131
- 239000000919 ceramic Substances 0.000 claims abstract description 83
- 239000002537 cosmetic Substances 0.000 claims abstract description 60
- 238000000034 method Methods 0.000 claims abstract description 30
- 238000001354 calcination Methods 0.000 claims abstract description 11
- 238000011049 filling Methods 0.000 claims abstract description 10
- 239000011248 coating agent Substances 0.000 claims abstract description 9
- 238000000576 coating method Methods 0.000 claims abstract description 9
- 238000004519 manufacturing process Methods 0.000 claims abstract description 9
- 239000007921 spray Substances 0.000 claims description 23
- 238000005507 spraying Methods 0.000 claims description 19
- 210000001161 mammalian embryo Anatomy 0.000 claims description 18
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 8
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 239000005995 Aluminium silicate Substances 0.000 claims description 4
- 229910021532 Calcite Inorganic materials 0.000 claims description 4
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 4
- 235000012211 aluminium silicate Nutrition 0.000 claims description 4
- DLHONNLASJQAHX-UHFFFAOYSA-N aluminum;potassium;oxygen(2-);silicon(4+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Al+3].[Si+4].[Si+4].[Si+4].[K+] DLHONNLASJQAHX-UHFFFAOYSA-N 0.000 claims description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 4
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 4
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 4
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 4
- 229910000428 cobalt oxide Inorganic materials 0.000 claims description 4
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 claims description 4
- 238000009499 grossing Methods 0.000 claims description 4
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 239000010453 quartz Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000000454 talc Substances 0.000 claims description 4
- 229910052623 talc Inorganic materials 0.000 claims description 4
- 239000011787 zinc oxide Substances 0.000 claims description 4
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 claims description 4
- 238000007781 pre-processing Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 9
- 230000007547 defect Effects 0.000 description 15
- 238000010304 firing Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 239000011148 porous material Substances 0.000 description 6
- 239000002689 soil Substances 0.000 description 6
- 238000003860 storage Methods 0.000 description 5
- 238000005245 sintering Methods 0.000 description 4
- 241000692783 Chylismia claviformis Species 0.000 description 3
- 230000001680 brushing effect Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 230000004927 fusion Effects 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- 230000004075 alteration Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- XOFYZVNMUHMLCC-ZPOLXVRWSA-N prednisone Chemical compound O=C1C=C[C@]2(C)[C@H]3C(=O)C[C@](C)([C@@](CC4)(O)C(=O)CO)[C@@H]4[C@@H]3CCC2=C1 XOFYZVNMUHMLCC-ZPOLXVRWSA-N 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 206010000496 acne Diseases 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 238000009990 desizing Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000009428 plumbing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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
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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
- C04B33/24—Manufacture of porcelain or white ware
-
- 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
-
- 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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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- 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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/16—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay
- C04B35/18—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay rich in aluminium oxide
- C04B35/19—Alkali metal aluminosilicates, e.g. spodumene
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/327—Iron group oxides, their mixed metal oxides, or oxide-forming salts thereof
- C04B2235/3275—Cobalt oxides, cobaltates or cobaltites or oxide forming salts thereof, e.g. bismuth cobaltate, zinc cobaltite
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3284—Zinc oxides, zincates, cadmium oxides, cadmiates, mercury oxides, mercurates or oxide forming salts thereof
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3418—Silicon oxide, silicic acids, or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3427—Silicates other than clay, e.g. water glass
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/349—Clays, e.g. bentonites, smectites such as montmorillonite, vermiculites or kaolines, e.g. illite, talc or sepiolite
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
- C04B2235/442—Carbonates
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Dispersion Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
Abstract
The invention discloses a processing method of ceramic sanitary ware, which comprises the following steps: providing cosmetic slurry, and coating the cosmetic slurry on the cavity wall of the accommodating cavity of the mold; providing ceramic slurry, and filling the containing cavity with the ceramic slurry to obtain a blank; providing glaze slurry, and covering the outer surface of the blank with a layer of the glaze slurry to obtain a glaze blank; calcining the glaze blank to obtain the ceramic sanitary ware. The technical scheme of the invention aims at reducing the process flow of sanitary appliance production and saving the cost of manpower, equipment, materials and the like.
Description
Technical Field
The invention relates to the technical field of sanitary wares, in particular to a processing method of ceramic sanitary wares.
Background
The sanitary ware is an important component of water heating equipment in a building and is equipment for washing, collecting and discharging sewage generated in life and production. The sanitary ware is divided according to materials and can be divided into ceramic sanitary ware, enamel sanitary ware, plastic sanitary ware and stainless steel sanitary ware.
In the existing processing method of the ceramic sanitary ware, defects such as pinholes, pores, concave-convex, small brown eyes and the like often appear on the sanitary ware blank, and the defects not only affect the external quality of the sanitary ware and reduce the grade of products, but also seriously cause the products to become waste products. Therefore, in the processing method of the ceramic sanitary ware, the sanitary ware blank needs to be checked for a plurality of times, and the surface of the sanitary ware blank needs to be glazed for three times to cover the defects. The sanitary appliance has the advantages of multiple production processes, high cost of manpower, equipment, materials and the like.
Disclosure of Invention
The invention mainly aims to provide a processing method of ceramic sanitary ware, which aims to simplify the process flow and save the cost of manpower, equipment, materials and the like.
In order to achieve the above purpose, the processing method of the ceramic sanitary ware provided by the invention comprises the following steps:
providing cosmetic slurry, and coating the cosmetic slurry on the cavity wall of the accommodating cavity of the mold;
providing ceramic slurry, and filling the containing cavity with the ceramic slurry to obtain a blank;
providing glaze slurry, and covering the outer surface of the blank with a layer of the glaze slurry to obtain a glaze blank;
calcining the glaze blank to obtain the ceramic sanitary ware.
In an embodiment of the application, the cosmetic soil slurry comprises 8.5% -15.5% of zirconium silicate, 23% -40.5% of potassium feldspar, 14.5% -24.5% of quartz powder, 5.5% -9.5% of kaolin and 9.5% -18.5% of calcite by weight.
In an embodiment of the application, the cosmetic slurry further comprises 1.5% -8% of calcined talc, 1.5% -6.5% of zinc oxide, 0.2% -0.7% of a smoothing agent, 0.005% -0.008% of cobalt oxide, 3.5% -7.5% of a frit, 0.2% -0.5% of light calcium carbonate and 0.04% -0.08% of carboxymethyl cellulose according to weight percentage.
In an embodiment of the present application, the step of providing a cosmetic slurry, and coating the cosmetic slurry on a cavity wall of a receiving cavity of a mold specifically includes:
pouring the cosmetic slurry into a spray gun;
and spraying the cosmetic slurry to the cavity wall of the accommodating cavity by using the spray gun.
In an embodiment of the present application, the step of spraying the cosmetic slurry to the wall of the accommodating cavity using the spray gun specifically includes:
the thickness of the cosmetic slurry sprayed is 0.8mm-2.0mm.
In an embodiment of the present application, the step of providing a glaze slurry, and covering an outer surface of the blank with a layer of the glaze slurry to obtain a glaze blank specifically includes:
pouring the glaze slip into the spray gun;
and spraying a layer of the glaze slurry on the outer surface of the blank body by using the spray gun.
In an embodiment of the present application, the step of spraying a layer of the glaze slurry on the outer surface of the blank using the spray gun specifically includes:
the thickness of the sprayed glaze slip is 0.8mm-2.0mm.
In an embodiment of the present application, after the step of providing ceramic slurry, filling the ceramic slurry into the accommodating cavity to obtain a blank, the step of providing glaze slurry, and covering the outer surface of the blank with a layer of the glaze slurry to obtain a glaze blank, further includes:
and (3) preprocessing the embryo body to enable the surface of the embryo body to be flat and smooth.
In an embodiment of the present application, the step of providing ceramic slurry, filling the ceramic slurry into the accommodating cavity, and obtaining a blank specifically includes:
the forming temperature of the embryo body is 26-35 ℃.
In an embodiment of the present application, the step of calcining the glaze blank to obtain the ceramic sanitary ware specifically includes:
before calcination, the glaze embryo is baked until the water content of the glaze embryo is 1% -1.3%.
According to the technical scheme, the cosmetic slurry is arranged on the cavity wall of the accommodating cavity of the die, then ceramic slurry is poured into the accommodating cavity of the die, and the cosmetic slurry layer can also fill up the defects of concave-convex surfaces and the like on the surface of the green body, so that the defects of small pinholes, pores and the like of a product can be greatly reduced, namely, the green body is not required to be glazed for many times, the defects of the green body are covered by the glaze layer, only a layer of glaze is applied on the outer surface of the green body, and finally the obtained glaze blank is calcined, so that the ceramic sanitary appliance product can be obtained. The obtained blank body has better fusion degree of the make-up soil slurry layer and the ceramic slurry layer, the blank body is basically free from cracks after the die is opened, the processing method of the ceramic sanitary ware provided by the invention reduces glazing times, simplifies operation procedures, can save a large amount of labor, equipment, materials and other costs, has better glossiness and quality than the prior art of the sintered sanitary ware, accords with the standard of GB/T6952-2015 sanitary ceramic, has all exposed surfaces and the inner wall of a sewage pipeline covered by glaze layers, has the glaze surface completely combined with the blank body, has even glazing, and has no obvious chromatic aberration delta E of less than or equal to 1.5 between the same product or matched products.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of an embodiment of a method of processing a ceramic plumbing fixture of the present invention;
FIG. 2 is a flow chart of yet another embodiment of the method of processing ceramic ware according to the present invention;
FIG. 3 is a flow chart of another embodiment of a method of processing ceramic ware according to the present invention;
FIG. 4 is a flow chart of a further embodiment of the method of processing ceramic ware according to the present invention.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
In the existing processing method of the ceramic sanitary ware, defects such as pinholes, pores, concave-convex, small brown eyes and the like often appear on the sanitary ware blank, and the defects not only affect the external quality of the sanitary ware and reduce the grade of products, but also seriously cause the products to become waste products. Therefore, in the processing method of the ceramic sanitary ware, the sanitary ware blank needs to be checked for a plurality of times, and the surface of the sanitary ware blank needs to be glazed for three times to cover the defects. The sanitary appliance has the advantages of multiple production processes, high cost of manpower, equipment, materials and the like. Therefore, the invention provides a processing method of ceramic sanitary ware, which aims to simplify the process flow and save the cost of manpower, equipment, materials and the like.
The invention provides a processing method of ceramic sanitary ware.
In the embodiment of the invention, the processing method of the ceramic sanitary ware comprises the following steps:
step S10: providing cosmetic slurry, and coating the cosmetic slurry on the cavity wall of the accommodating cavity of the mold;
step S20: providing ceramic slurry, and filling the containing cavity with the ceramic slurry to obtain a blank;
step S30: providing glaze slurry, and covering the outer surface of the blank with a layer of the glaze slurry to obtain a glaze blank;
step S40: calcining the glaze blank to obtain the ceramic sanitary ware.
In this embodiment, the corresponding mold is provided according to the sanitary ware to be produced, and the mold is provided with a containing cavity with an opening for pouring and containing the ceramic slurry corresponding to the sanitary ware to be produced, so that the ceramic slurry is molded to form a sanitary ware blank. The formulation of the ceramic slurry and the formulation of the cosmetic slurry are specifically selected according to the strength requirement, the use scene and the appearance requirement corresponding to the production sanitary appliance, and are not further limited herein. Firstly, setting cosmetic slurry on the inner wall of a mould, namely the cavity wall of a containing cavity, wherein the method for setting the cosmetic slurry on the cavity wall can adopt a glaze spraying method, a glaze brushing method or a glaze swinging method and the like, the method is not limited in the process, then ceramic slurry is poured into the containing cavity of the mould, the ceramic slurry is waited for forming, the mould is opened to obtain a blank body integrating the cosmetic slurry and the ceramic slurry, the forming humidity of the blank body is 68% -75%, the sizing time of the blank body forming is 15min-20min, the slurry absorbing time of the blank body forming is 150min-200min, the solidifying time of the blank body forming is 50min-90min, the solidifying air pressure of the blank body forming is 0.01mpa-0.12mpa, the slurry absorbing thickness of a blank body forming pipeline is 9.5mm-10.5mm, and the blank body forming village embryo bagging storage time is 2 days. Compared with the method that after the blank is formed by ceramic slurry alone, the method that the cosmetic slurry is sprayed can enable the lamination of the cosmetic slurry and the ceramic slurry to be tighter, the obtained blank surface is smoother, and defects such as small pinholes or pores are not easy to occur. Providing glaze slurry, glazing the blank body, glazing the outer surface of the blank body by adopting a glaze spraying method, a brushing method or a soaking method and the like, and due to the arrangement of the cosmetic soil slurry, the effect of decorating the outer surface of the sanitary appliance can be realized by only coating a layer of glaze, thereby saving the cost of manpower, equipment and materials. Finally, the glaze blank is calcined to obtain the final sanitary ware product, the variation temperature of the preheating zone, the firing zone and the cooling zone is controlled during calcination, the vehicle speed is controlled, and the temperature and pressure control balance is controlled.
According to the technical scheme, the cosmetic slurry is arranged on the cavity wall of the accommodating cavity of the die, then ceramic slurry is poured into the accommodating cavity of the die, and the cosmetic slurry layer can also fill up the defects of concave-convex surfaces and the like on the surface of the green body, so that the defects of small pinholes, pores and the like of a product can be greatly reduced, the green body is not required to be glazed for multiple times, the defects of the green body can be covered by the glaze layer, only a layer of glaze is required to be applied on the outer surface of the green body, and finally the obtained glaze blank is calcined, so that the ceramic sanitary appliance product can be obtained. The obtained blank body has better fusion degree of the make-up soil slurry layer and the ceramic slurry layer, the blank body is basically free from cracks after the die is opened, the processing method of the ceramic sanitary ware provided by the invention reduces glazing times, simplifies operation procedures, can save a large amount of labor, equipment, materials and other costs, has better glossiness and quality than the prior art of the sintered sanitary ware, accords with the standard of GB/T6952-2015 sanitary ceramic, has all exposed surfaces and the inner wall of a sewage pipeline covered by glaze layers, has the glaze surface completely combined with the blank body, has even glazing, and has no obvious chromatic aberration delta E of less than or equal to 1.5 between the same product or matched products.
In an embodiment of the application, the cosmetic soil slurry comprises 8.5% -15.5% of zirconium silicate, 23% -40.5% of potassium feldspar, 14.5% -24.5% of quartz powder, 5.5% -9.5% of kaolin and 9.5% -18.5% of calcite by weight.
In the embodiment, the mass ratio of zirconium silicate in the cosmetic slurry is 8.5% -15.5%, for example 8.5%, 9.5%, 10.5%, 11.5%, 12.5%, 13.5%, 14.5%, 15.5% or any value in the above range, so that the green glaze separation performance of the ceramic can be remarkably improved, and the ceramic glaze hardness can be improved; the mass ratio of the potassium feldspar is 23% -40.5%, such as 23%, 30%, 35%, 40.5% or any value in the above interval, so that the firing temperature can be reduced, the drying time of the green body can be shortened, and the shrinkage and deformation of the green body during drying can be reduced; the mass ratio of the quartz powder is 14.5% -24.5%, such as 14.5%, 15.5%, 16.5%, 17.5%, 18.5%, 19.5%, 20.5%, 21.5%, 22.5%, 23.5%, 24.5% or any value in the above range, so that the hardness and density of the ceramic can be improved; the kaolin accounts for 5.5% -9.5% of the weight, such as 5.5%, 6.5%, 7.5%, 8.5%, 9.5% or any value in the above interval, so that the deformation of the product can be prevented, the firing temperature can be widened, and the blank body can have certain whiteness; the mass ratio of calcite is 9.5% -18.5%, such as 9.5%, 10.5%, 11.5%, 12.5%, 13.5%, 14.5%, 15.5%, 16.5%, 17.5%, 18.5% or any value in the above range, for increasing glossiness, improving hardness and adjusting firing temperature.
In an embodiment of the application, the cosmetic slurry further comprises 1.5% -8% of calcined talc, 1.5% -6.5% of zinc oxide, 0.2% -0.7% of a smoothing agent, 0.005% -0.008% of cobalt oxide, 3.5% -7.5% of a frit, 0.2% -0.5% of light calcium carbonate and 0.04% -0.08% of carboxymethyl cellulose according to weight percentage.
In this embodiment, the mass ratio of the calcined talc is 1.5% -8%, for example, 1.5%, 2.5%, 3.5%, 4.5%, 5.5%, 6.5%, 7.5%, 8% or any value in the above range, which plays a role in reducing the temperature and improving the roughness of the glaze. The zinc oxide accounts for 1.5% -6.5% by mass, such as 1.5%, 2.5%, 3.5%, 4.5%, 5.5%, 6.5% or any value in the above range, and can play roles in improving hardness, increasing brightness and adjusting color. The mass ratio of the smoothing agent is 0.2% -0.7%, such as 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7% or any value in the above interval, and can improve the fluidity and surface glossiness of the cosmetic slurry, so that the surface of the blank body is smoother. The cobalt oxide accounts for 0.005% -0.008%, such as 0.005%, 0.006%, 0.007%, 0.008% or any value in the above range, and is added into the cosmetic slurry, and the product exhibits bright color after roasting, so that the embryo is more artistic. The frit mass ratio is 3.5% -7.5%, for example 3.5%, 4.5%, 5.5%, 6.5%, 7.5% or any value in the above interval, so that the decomposition and combination reaction during glaze firing can be reduced, and the sintering temperature of the ceramic can be reduced as a fluxing agent, so that the ceramic can be rapidly fired at a low temperature. The light calcium carbonate accounts for 0.2% -0.5%, such as 0.2%, 0.3%, 0.4%, 0.5% or any value in the above range, which can increase the porosity and thermal conductivity of the ceramic, improve the impact and compression resistance of the ceramic, change the sintering characteristics of the ceramic, and influence the sintering process and sintering temperature of the ceramic. The mass ratio of the carboxymethyl cellulose is 0.04% -0.08%, such as 0.04%, 0.05%, 0.06%, 0.07%, 0.08% or any value in the above range, which can effectively improve the glaze tension, prevent water from diffusing from the glaze to the embryo body and increase the smoothness of the glaze; under a small amount of conditions, the rheological property of the glaze slip can be effectively regulated, and the glaze is easy to glazing.
In an embodiment of the present application, the step S10 of providing a cosmetic slurry, and coating the cosmetic slurry on a cavity wall of a receiving cavity of a mold specifically includes:
step S11: pouring the cosmetic slurry into a spray gun;
step S12: and spraying the cosmetic slurry to the cavity wall of the accommodating cavity by using the spray gun.
In the embodiment, the glaze spraying method is adopted to spray the cosmetic slurry to the cavity wall of the accommodating cavity, so that a thicker cosmetic soil layer can be obtained, and the effects of high efficiency and smooth and flat surface of the cosmetic slurry can be achieved by adopting the glaze spraying method. Firstly, pouring the prepared cosmetic slurry into a storage tank spray gun, atomizing the cosmetic slurry through the storage tank spray gun, and spraying the atomized cosmetic slurry onto the cavity wall of the accommodating cavity.
In an embodiment of the present application, the step S12 of spraying the cosmetic slurry to the wall of the accommodating cavity using the spray gun specifically includes:
step S121: the thickness of the cosmetic slurry sprayed is 0.8mm-2.0mm.
In this embodiment, the thickness of the cosmetic slurry sprayed on the inner wall of the accommodating cavity is 0.8-2.0mm, for example, 0.8mm, 0.9mm, 1.0mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2.0mm or any value in the above range, and the cosmetic slurry is too thin, which cannot fill the blank defect, and the cosmetic slurry is too thick, which is easy to crack and affects the subsequent glazing process.
In an embodiment of the present application, the step S30 of providing a glaze slurry, covering the outer surface of the blank with a layer of the glaze slurry, to obtain a glaze blank, includes:
step S31: pouring the glaze slip into the spray gun;
step S32: and spraying a layer of the glaze slurry on the outer surface of the blank body by using the spray gun.
In the embodiment, the glaze slurry is sprayed on the outer surface of the blank body by adopting a glaze spraying method, a thicker glaze layer can be obtained, and the effects of high efficiency and smooth and flat glaze slurry surface can be achieved by adopting the glaze spraying method. The prepared glaze slurry is poured into a storage tank spray gun, the glaze slurry is atomized through the storage tank spray gun, and the atomized glaze slurry is sprayed on the outer surface of the blank body to form a glaze layer.
In an embodiment of the present application, the step S32 of spraying a layer of the glaze slip on the outer surface of the blank by using the spray gun specifically includes:
step S321: the thickness of the sprayed glaze slip is 0.8mm-2.0mm.
In this embodiment, the thickness of the glaze slurry sprayed on the outer surface of the blank is 0.8-2.0mm, for example, 0.8mm, 0.9mm, 1.0mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2.0mm or any value in the above range, the thickness of the glaze slurry is too thin, the decoration effect cannot be achieved in the firing process, and the thickness of the glaze slurry is too thick, and the subsequent firing process is easily cracked, thereby being affected.
In an embodiment of the present application, after the step S20 of providing ceramic slurry, filling the ceramic slurry into the accommodating cavity to obtain a blank, the step S30 of providing glaze slurry, covering an outer surface of the blank with a layer of the glaze slurry, and obtaining a glaze blank further includes:
step S21: and (3) preprocessing the embryo body to enable the surface of the embryo body to be flat and smooth.
In step S21 of this embodiment, the blank is pretreated, where the pretreatment includes a cleaning operation, that is, the mud scraps at the die seam and the eyelet of the blank are cleaned, so that the surface of the blank is smooth, free of concave-convex and free of pimples, dust blowing is performed after the cleaning, and then wet towel and sponge are used for scrubbing, thereby facilitating the subsequent glazing process of the blank. In other embodiments, after pretreatment, checking whether the outer surface of the blank has cracks or damages, mainly checking whether each part of the blank has cracks or damages, taking a ceramic toilet as an example, mainly checking desizing holes, water tank openings, mounting angles, cover plates, seat rings, water cities, cleaning surfaces, vortex bottoms, auxiliary punching holes, rear cavities and the like, placing unqualified blanks in a reworking area, rechecking and confirming after molding and reworking, and transferring all qualified blanks to a glazing workshop after blowing, scanning and brushing magnesium chloride, and performing glazing procedures.
In an embodiment of the present application, the step S20 of providing ceramic slurry, filling the ceramic slurry into the accommodating cavity, and obtaining a blank specifically includes:
the forming temperature of the embryo body is 26-35 ℃.
In this embodiment, after the cosmetic slurry is coated on the cavity wall of the mold, ceramic slurry is injected into the mold, and then the slurry in the mold is baked at 26 to 35 ℃, for example, 26 to 27 to 28 to 29 to 30 to 31 to 32 to 33 to 34 to 35 ℃ or any temperature in the above-mentioned range, so that the cosmetic slurry and the ceramic slurry are preliminarily molded to form a green body. Too low a temperature can lead to slow formation of the blank, the cosmetic slurry on the outer layer is solidified before the ceramic slurry, the fusion effect is poor, and too high a temperature can lead to too fast cracking of the cosmetic slurry. The obtained blank body is better in combination effect of the cosmetic slurry and the ceramic slurry by controlling the forming temperature, and the formed blank body surface is free from defects such as pinholes, pores, concave-convex, small brown eyes and the like.
In an embodiment of the present application, the step S40 of calcining the glaze blank to obtain the ceramic sanitary ware specifically includes:
before calcination, the glaze embryo is baked until the water content of the glaze embryo is 1% -1.3%.
In the embodiment, the glaze blank is baked before being calcined, the water content of the glaze blank is primarily reduced to 1% -1.3%, such as 1%, 1.1%, 1.2%, 1.3% or any percentage in the above range, the glaze surface of the obtained ceramic sanitary ware can be ensured to have good glossiness, be smooth and smooth, and have no pinholes and microcracks on the surface, so that the antifouling capacity is improved.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.
Claims (10)
1. A method of processing ceramic ware, comprising:
providing cosmetic slurry, and coating the cosmetic slurry on the cavity wall of the accommodating cavity of the mold;
providing ceramic slurry, and filling the containing cavity with the ceramic slurry to obtain a blank;
providing glaze slurry, and covering the outer surface of the blank with a layer of the glaze slurry to obtain a glaze blank;
calcining the glaze blank to obtain the ceramic sanitary ware.
2. The method for processing ceramic sanitary ware according to claim 1, wherein the cosmetic slurry comprises 8.5% -15.5% of zirconium silicate, 23% -40.5% of potassium feldspar, 14.5% -24.5% of quartz powder, 5.5% -9.5% of kaolin and 9.5% -18.5% of calcite by weight.
3. The method for processing ceramic sanitary ware according to claim 2, wherein the cosmetic slurry further comprises, by weight, 1.5% -8% of calcined talc, 1.5% -6.5% of zinc oxide, 0.2% -0.7% of a smoothing agent, 0.005% -0.008% of cobalt oxide, 3.5% -7.5% of a frit, 0.2% -0.5% of light calcium carbonate, and 0.04% -0.08% of carboxymethyl cellulose.
4. The method of claim 1, wherein the step of providing a cosmetic slurry and applying the cosmetic slurry to the cavity wall of the receiving cavity of the mold comprises:
pouring the cosmetic slurry into a spray gun;
and spraying the cosmetic slurry to the cavity wall of the accommodating cavity by using the spray gun.
5. The method of claim 4, wherein the step of spraying the cosmetic slurry onto the wall of the receiving cavity using the spray gun comprises:
the thickness of the cosmetic slurry sprayed is 0.8mm-2.0mm.
6. A method of manufacturing a ceramic sanitary ware according to any one of claims 1 to 5, wherein the step of providing a glaze slip, and coating the outer surface of the blank with a layer of the glaze slip to obtain a glaze blank, comprises the steps of:
pouring the glaze slip into the spray gun;
and spraying a layer of the glaze slurry on the outer surface of the blank body by using the spray gun.
7. The method of claim 6, wherein the step of spraying a layer of the glaze slip onto the outer surface of the green body using the spray gun comprises:
the thickness of the sprayed glaze slip is 0.8mm-2.0mm.
8. A method of manufacturing a ceramic sanitary ware according to any one of claims 1 to 5, wherein after the step of providing ceramic slurry, filling the receiving cavity with the ceramic slurry to obtain a blank, the step of providing a glaze slurry, and coating the outer surface of the blank with a layer of the glaze slurry to obtain a glaze blank, further comprises:
and (3) preprocessing the embryo body to enable the surface of the embryo body to be flat and smooth.
9. A method of manufacturing a ceramic sanitary ware according to any one of claims 1 to 5, wherein the step of providing a ceramic slurry, filling the receiving cavity with the ceramic slurry, and obtaining a blank comprises:
the forming temperature of the embryo body is 26-35 ℃.
10. A method of manufacturing a ceramic sanitary ware according to any one of claims 1 to 5, wherein the step of calcining the glaze blank to obtain the ceramic sanitary ware comprises:
before calcination, the glaze embryo is baked until the water content of the glaze embryo is 1% -1.3%.
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| CN202311333614.7A CN117285328A (en) | 2023-10-13 | 2023-10-13 | Sanitary ware processing method |
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