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CN113698190A - Preparation process of dry-grain half-polished brick - Google Patents

Preparation process of dry-grain half-polished brick Download PDF

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Publication number
CN113698190A
CN113698190A CN202110282306.0A CN202110282306A CN113698190A CN 113698190 A CN113698190 A CN 113698190A CN 202110282306 A CN202110282306 A CN 202110282306A CN 113698190 A CN113698190 A CN 113698190A
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China
Prior art keywords
parts
dry
glaze
brick
antique
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Granted
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CN202110282306.0A
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CN113698190B (en
Inventor
林要军
马云龙
张俊
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Asia Building Materials Co ltd
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Asia Building Materials Co ltd
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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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B29/00—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents
    • B24B29/02—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents designed for particular workpieces
    • 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
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
    • 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
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
    • C04B41/5022—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with vitreous materials
    • C—CHEMISTRY; METALLURGY
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    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/52—Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
    • 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
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
    • C04B41/81—Coating or impregnation
    • C04B41/89—Coating or impregnation for obtaining at least two superposed coatings having different compositions
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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
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3206—Magnesium oxides or oxide-forming salts thereof
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
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    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
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    • C04B2235/349—Clays, e.g. bentonites, smectites such as montmorillonite, vermiculites or kaolines, e.g. illite, talc or sepiolite
    • 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
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Abstract

The invention discloses a preparation process of a dry grain semi-polished brick, which comprises the following steps: the method comprises the following steps of firstly, carrying out surface water spraying treatment on a green brick, and spraying an antique overglaze on the surface of the green brick by utilizing a wire mesh capable of forming patterns on the green brick to form an antique overglaze layer with the patterns; step two, spraying a printing glaze on the antique overglaze layer, and coating a layer of protective glaze on the surface of the antique overglaze layer; thirdly, continuously spraying dry granular glaze on the surface of the protective glaze, and calcining at the high temperature of 1100-1300 ℃ to form semitransparent concave-convex crystals on the surface of the antique glaze; and step four, grinding and polishing are carried out according to the concave-convex degree of the concave-convex crystals on the upper surface of the glazed surface of the green brick by utilizing the flexible polishing device, so that the dry-grain half-polished brick is obtained. The dry grain half-polished brick prepared by the invention is fine and smooth, has a face value, and has more antifouling and wear-resistant effects, so that the product is more dampproof and antifouling, the folding strength is upgraded, the daily loss is not feared, and the product is updated for a long time.

Description

Preparation process of dry-grain half-polished brick
Technical Field
The invention relates to the field of a semi-polished brick preparation process. More specifically, the invention relates to a preparation process of a dry grain half polished brick.
Background
Along with the gradual improvement of living standard of people, aesthetic eye gloss is also gradually improved, and half polished tiles are bound between polished tiles and matt tiles, are bright eye and reflective without polished tiles, are rigid without matt tiles, and are gradually favored by people. And the traditional half polished tiles are all manufactured by adopting a common rigid polishing machine, and cannot be polished in real time along with the concave-convex change of the polished surface, so that the problems that the half polished tiles are poor in polishing effect, the convex parts are excessively polished, and the concave parts are excessively polished are caused.
Disclosure of Invention
To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided a dry grain semi-polished tile manufacturing process comprising the steps of:
the method comprises the following steps of firstly, carrying out surface water spraying treatment on a green brick, and spraying an antique overglaze on the surface of the green brick by utilizing a wire mesh capable of forming patterns on the green brick to form an antique overglaze layer with the patterns;
step two, spraying a printing glaze on the antique overglaze layer, and coating a layer of protective glaze on the surface of the antique overglaze layer;
thirdly, continuously spraying dry granular glaze on the surface of the protective glaze, and calcining at the high temperature of 1100-1300 ℃ to form semitransparent concave-convex crystals on the surface of the antique glaze;
and step four, grinding and polishing are carried out according to the concave-convex degree of the concave-convex crystals on the upper surface of the glazed surface of the green brick by utilizing the flexible polishing device, so that the dry-grain half-polished brick is obtained.
According to a preferred embodiment of the invention, in the dry-grain half-polished brick preparation process, the green brick is prepared from the following raw materials in parts by weight:
3-5 parts of black mud, 40-45 parts of medium temperature sand, 1-3 parts of calcined high alumina, 1-3 parts of strong plastic soil, 5-10 parts of high temperature sand, 1-3 parts of magnesium mud, 10-20 parts of white mud, 10-12 parts of medium temperature sand and 1-5 parts of high alumina.
According to a preferred embodiment of the invention, in the preparation process of the dry-grain half-polished tile, the decal is prepared from the following raw materials in parts by weight: 30-40 parts of potassium feldspar, 10-30 parts of albite, 5-20 parts of barium carbonate, 1-5 parts of zinc oxide, 1-5 parts of calcined talc, 3-5 parts of wollastonite, 12-16 parts of washing soil, 5-10 parts of alumina, 4-10 parts of quartz, 3-10 parts of white corundum, 10-20 parts of zirconium silicate, 120-130 parts of vegetable oil and 5-10 parts of glycerol.
According to a preferred embodiment of the invention, in the preparation process of the dry grain semi-polished tile, the dry grain glaze is obtained by mixing the following raw materials in parts by weight: 1-5 parts of dry particles, 5-8 parts of glaze slip, 100-140 parts of suspending agent, 3-10 parts of alkyl polyglycoside, 20-30 parts of glue, 5-10 parts of dicumyl peroxide, 5-10 parts of rubber, 5-10 parts of nano graphene particles and 20-30 parts of polyacrylamide anions.
In the embodiment, the nano graphene particles can play a filling role on the concave-convex surface of the dry particle in the stirring and friction process of the dry particle glaze preparation, so that the flexibility of the dry particle glaze is improved, the concave-convex pattern on the surface of the dry particle layer formed by coating is formed, the surface of a brick body is slightly matte but smooth in practice, the surface tension is also reduced, the oil stain resistance is improved, and a stable third body is formed between a friction pair due to the unique performance of the nano graphene particles and a friction chemical reaction, so that the integral abrasion resistance is improved; the graphene particles are not easy to disperse in the suspending agent, so that the surface of the graphene particles is modified by alkyl polyglycoside, the surface tension of the graphene particles is reduced, the graphene particles can be better fused and dispersed in the suspending agent, meanwhile, the graphene particles are modified by matching with anionic dicumyl peroxide amide, a layer of anionic dicumyl peroxide amide is wrapped outside the graphene particles, and the distance between adjacent graphene particles can be kept and balanced by utilizing the principle that like poles repel each other due to the negative charge of the anionic dicumyl peroxide amide. And a layer of anionic polyacrylamide anions is coated outside the graphene particles, and the graphene particles have certain activity, and can generate hydrogen bond bridging effect with hydroxyl in alkyl polyglycoside, so that the acting force between molecules is enhanced, and the overall stability is promoted.
According to a preferred embodiment of the invention, in the process for preparing the dry-grain half-polished tile, the dry-grain glaze is prepared by the following method:
a) mixing glaze slip, a suspending agent, alkyl polyglycoside and polyacrylamide anions, heating in an oven at 40-50 ℃, and stirring while heating to obtain a mixture A;
b) melting and blending dicumyl peroxide and rubber at 170 ℃, activating for 10-20min, adding nano graphene particles, and fully stirring to obtain a mixture B;
c) and mixing the mixture A and the mixture B, placing the mixture A and the mixture B in a closed container, reacting for 15min under the pressure of 5-7Mpa, then heating to 200 ℃, preserving the temperature for 10min, and respectively adding dry particles to obtain the dry particle glaze.
In the embodiment, the dicumyl peroxide reacts with the rubber to form vulcanized rubber, so that the high temperature resistance of the dry particle glaze can be improved, the dicumyl peroxide can form macromolecular free radicals to react with the grafting agent, the formation of a net structure is promoted along with the transfer and coupling of the free radicals, the compatibility among raw materials is improved, and the dispersion degree of the nano graphene in the meshes of the net structure is promoted.
According to a preferred embodiment of the present invention, the process for preparing the dry-grain semi-polished tile comprises the following steps:
the trolley comprises a rack, a trolley body and a trolley body, wherein the rack consists of vertical frames on two sides and a cross beam fixed at the top of the vertical frames, a linear track is arranged at the bottom of the cross beam along the length direction, and a trolley and a linear motor for pushing the trolley to walk along the linear track are arranged on the linear track; a lifting platform for laying bricks is arranged below the rack;
the polishing mechanism comprises an installation barrel, an iron core, a coil, a magnetic block, a counter-force spring, a vertical rod, a polishing wheel and a rotating motor, wherein the installation barrel is vertically and downwards fixed at the bottom of the sports car;
the detection mechanism comprises a support, an adjustable resistor and a probe rod, the support is fixed at the bottom of the sports car and is positioned at the front end of the mounting cylinder along the advancing direction of the sports car, the adjustable resistor is fixed on the support, the probe rod is vertically arranged, the lower end of the probe rod is flush with the bottom of the polishing wheel, the upper end of the probe rod is fixedly connected to an adjusting part of the adjustable resistor, and the adjusting part is driven to move through the up-and-down movement of the probe rod so as to change the actual resistance value of the adjusting resistor;
the adjustable resistor and the coil are connected in the same circuit in series, and when the probe rod moves upwards, the adjusting component is driven to move, so that the actual resistance value of the adjustable resistor is increased, the current passing through the coil is further reduced, and the repulsive force of the iron core to the magnetic blocks is reduced;
when the probe rod moves downwards, the adjusting part is driven to move, so that the actual resistance value of the adjustable resistor is reduced, the current passing through the coil is increased, and the repulsive force of the iron core to the magnetic block is increased.
In the embodiment, the flexible polishing equipment can polish the surface of a tiled brick layer, in the polishing process, the probe rod moves up and down along with convex-concave surface modeling of the brick layer when the surface of the brick layer slides, the adjustment of the actual resistance value of the adjustable resistor is realized by the up-and-down movement of the probe rod, the current passing through the coil and the magnetic field intensity of the iron core are further adjusted, the change of the repulsive force of the iron core to the magnetic block is brought, the position of the polishing wheel is finally changed, the polishing wheel correspondingly moves up and down along with the convex-concave surface modeling of the brick layer, and the modeling of the surface of the brick layer cannot be damaged while effective polishing is completed. Specifically, when the polishing wheel walks to the position of the convex part on the surface of the brick layer, the probe rod moves upwards to drive the adjusting part to move, so that the actual resistance value of the adjustable resistor is increased, further the current passing through the coil is reduced, the magnetic field of the iron core is weakened, the repulsive force of the iron core to the magnetic block is reduced, the magnetic block is lifted under the action of the counterforce spring to drive the polishing wheel to lift, and the polishing wheel is prevented from grinding the convex part on the surface of the brick layer; when the polishing wheel walks to the position of the brick layer with the concave surface, the probe rod moves downwards to drive the adjusting part to move, so that the actual resistance value of the adjustable resistor is reduced, the current passing through the coil is increased, the magnetic field of the iron core is enhanced, the repulsive force of the iron core to the magnetic block is increased, the magnetic block is pushed to descend, the polishing wheel is driven to descend, and the situation that the polishing wheel does not contact the concave position of the brick layer with the concave position and does not achieve effective polishing is avoided.
According to a preferred embodiment of the invention, in the preparation process of the dry grain semi-polished brick, the lower end of the probe rod is provided with a ball head so that the probe rod can smoothly slide along the surface of the brick.
According to a preferred embodiment of the invention, in the process for preparing the dry grain semi-polished tile, the mounting cylinder is made of a magnetic yoke material.
According to a preferred embodiment of the invention, in the dry grain half-polished tile preparation process, a time relay for time delay is connected in a series circuit where the adjustable resistor and the coil are located, and the multiplication of the time delay of the time relay and the traveling speed of the sports car is equal to the linear distance between the lower end of the probe rod and the bottom of the polishing wheel.
The invention at least comprises the following beneficial effects: the dry grain half-polished brick prepared by the invention is fine and smooth, has a face value, and has more antifouling and wear-resistant effects, so that the product is more dampproof and antifouling, the folding strength is upgraded, the daily loss is not feared, and the product is updated for a long time.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic view of a flexible polishing apparatus according to the present invention;
FIG. 2 is a schematic circuit diagram of a series circuit of the adjustable resistor of the present invention;
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be constructed and operated in a particular orientation and thus are not to be considered limiting.
Example 1
A preparation process of a dry particle semi-polished brick comprises the following steps:
the method comprises the following steps of firstly, carrying out surface water spraying treatment on a green brick, and spraying an antique overglaze on the surface of the green brick by utilizing a wire mesh capable of forming patterns on the green brick to form an antique overglaze layer with the patterns; the green brick is prepared from the following raw materials in parts by weight:
3 parts of black mud, 40 parts of medium-temperature sand, 1 part of calcined high-alumina, 1 part of strong plastic soil, 5 parts of high-temperature sand, 1 part of magnesia, 10 parts of white mud, 10 parts of medium-temperature sand and 1 part of high-alumina.
Step two, spraying a printing glaze on the antique overglaze layer, and coating a layer of protective glaze on the surface of the antique overglaze layer; the decal glaze is prepared from the following raw materials in parts by weight: 30 parts of potassium feldspar, 10 parts of albite, 5 parts of barium carbonate, 1 part of zinc oxide, 1 part of calcined talc, 3 parts of wollastonite, 12 parts of water-washed soil, 5 parts of alumina, 4 parts of quartz, 3 parts of white corundum, 10 parts of zirconium silicate, 120 parts of vegetable oil and 5 parts of glycerol.
Thirdly, continuously spraying dry granular glaze on the surface of the protective glaze, and calcining at the high temperature of 1100 ℃ to form semitransparent concave-convex crystals on the surface of the antique glaze; the dry granular glaze is prepared by mixing the following raw materials in parts by weight: 1 part of dry particles, 5 parts of glaze slip, 100 parts of suspending agent, 3 parts of alkyl polyglycoside, 20 parts of glue, 5 parts of dicumyl peroxide, 5 parts of rubber, 5 parts of nano graphene particles and 20 parts of polyacrylamide anions.
Wherein the dry granular glaze is prepared by the following method:
a) mixing glaze slip, a suspending agent, alkyl polyglycoside and polyacrylamide anions, heating in an oven at 40 ℃, and stirring while heating to obtain a mixture A;
b) melting and blending dicumyl peroxide and rubber at 170 ℃, activating for 10min, adding nano graphene particles, and fully stirring to obtain a mixture B;
c) and mixing the mixture A and the mixture B, placing the mixture A and the mixture B in a closed container, reacting for 15min under the pressure of 5Mpa, then heating to 200 ℃, preserving heat for 10min, and respectively adding dry particles to obtain the dry particle glaze.
And step four, grinding and polishing are carried out according to the concave-convex degree of the concave-convex crystals on the upper surface of the glazed surface of the green brick by utilizing the flexible polishing device, so that the dry-grain half-polished brick is obtained.
Example 2
A preparation process of a dry particle semi-polished brick comprises the following steps:
the method comprises the following steps of firstly, carrying out surface water spraying treatment on a green brick, and spraying an antique overglaze on the surface of the green brick by utilizing a wire mesh capable of forming patterns on the green brick to form an antique overglaze layer with the patterns; the green brick is prepared from the following raw materials in parts by weight:
4 parts of black mud, 42 parts of medium-temperature sand, 2 parts of calcined high alumina, 2 parts of Zhang high alumina, 2 parts of strong plastic soil, 8 parts of high-temperature sand, 2 parts of magnesia mud, 15 parts of white mud, 11 parts of medium-temperature sand and 3 parts of high alumina.
Step two, spraying a printing glaze on the antique overglaze layer, and coating a layer of protective glaze on the surface of the antique overglaze layer; the decal glaze is prepared from the following raw materials in parts by weight: 35 parts of potassium feldspar, 20 parts of albite, 15 parts of barium carbonate, 3 parts of zinc oxide, 3 parts of calcined talc, 4 parts of wollastonite, 14 parts of water-washed soil, 7 parts of alumina, 6 parts of quartz, 6 parts of white corundum, 15 parts of zirconium silicate, 125 parts of vegetable oil and 8 parts of glycerol.
Thirdly, continuously spraying dry granular glaze on the surface of the protective glaze, and calcining at the high temperature of 1200 ℃ to form semitransparent concave-convex crystals on the surface of the antique glaze; the dry granular glaze is prepared by mixing the following raw materials in parts by weight: 3 parts of dry particles, 7 parts of glaze slip, 120 parts of suspending agent, 6 parts of alkyl polyglycoside, 25 parts of glue, 7 parts of dicumyl peroxide, 7 parts of rubber, 7 parts of nano graphene particles and 25 parts of polyacrylamide anions.
Wherein the dry granular glaze is prepared by the following method:
a) mixing glaze slip, a suspending agent, alkyl polyglycoside and polyacrylamide anions, heating in an oven at 45 ℃, and stirring while heating to obtain a mixture A;
b) melting and blending dicumyl peroxide and rubber at 170 ℃, activating for 15min, adding nano graphene particles, and fully stirring to obtain a mixture B;
c) and mixing the mixture A and the mixture B, placing the mixture A and the mixture B in a closed container, reacting for 15min under the pressure of 6Mpa, then heating to 200 ℃, preserving heat for 10min, and respectively adding dry particles to obtain the dry particle glaze.
And step four, grinding and polishing are carried out according to the concave-convex degree of the concave-convex crystals on the upper surface of the glazed surface of the green brick by utilizing the flexible polishing device, so that the dry-grain half-polished brick is obtained.
Example 3
A preparation process of a dry particle semi-polished brick comprises the following steps:
the method comprises the following steps of firstly, carrying out surface water spraying treatment on a green brick, and spraying an antique overglaze on the surface of the green brick by utilizing a wire mesh capable of forming patterns on the green brick to form an antique overglaze layer with the patterns; the green brick is prepared from the following raw materials in parts by weight:
5 parts of black mud, 45 parts of medium-temperature sand, 3 parts of calcined high-alumina, 3 parts of Zhang high-alumina, 3 parts of strong plastic soil, 10 parts of high-temperature sand, 3 parts of magnesia, 20 parts of white mud, 12 parts of medium-temperature sand and 5 parts of high-alumina.
Step two, spraying a printing glaze on the antique overglaze layer, and coating a layer of protective glaze on the surface of the antique overglaze layer; the decal glaze is prepared from the following raw materials in parts by weight: 40 parts of potassium feldspar, 30 parts of albite, 20 parts of barium carbonate, 5 parts of zinc oxide, 5 parts of calcined talc, 5 parts of wollastonite, 16 parts of water-washed soil, 10 parts of alumina, 10 parts of quartz, 10 parts of white corundum, 20 parts of zirconium silicate, 130 parts of vegetable oil and 10 parts of glycerol.
Thirdly, continuously spraying dry granular glaze on the surface of the protective glaze, and calcining at the high temperature of 1300 ℃ to form semitransparent concave-convex crystals on the surface of the antique glaze; the dry granular glaze is prepared by mixing the following raw materials in parts by weight: 5 parts of dry particles, 8 parts of glaze slip, 140 parts of suspending agent, 10 parts of alkyl polyglycoside, 30 parts of glue, 10 parts of dicumyl peroxide, 10 parts of rubber, 10 parts of nano graphene particles and 30 parts of polyacrylamide anions.
Wherein the dry granular glaze is prepared by the following method:
a) mixing glaze slip, a suspending agent, alkyl polyglycoside and polyacrylamide anions, heating in an oven at 50 ℃, and stirring while heating to obtain a mixture A;
b) melting and blending dicumyl peroxide and rubber at 170 ℃, activating for 20min, adding nano graphene particles, and fully stirring to obtain a mixture B;
c) and mixing the mixture A and the mixture B, placing the mixture A and the mixture B in a closed container, reacting for 15min under the pressure of 7Mpa, then heating to 200 ℃, preserving heat for 10min, and respectively adding dry particles to obtain the dry particle glaze.
And step four, grinding and polishing are carried out according to the concave-convex degree of the concave-convex crystals on the upper surface of the glazed surface of the green brick by utilizing the flexible polishing device, so that the dry-grain half-polished brick is obtained.
Compared with the commercially available ordinary half-polished tile, the half-polished tile prepared in examples 1 to 3 has stronger oil stain resistance.
In another embodiment, the flexible polishing apparatus is shown in fig. 1, and comprises:
the trolley comprises a rack, a trolley frame and a lifting mechanism, wherein the rack consists of vertical frames 1 on two sides and a cross beam 2 fixed at the top of the vertical frame 1, a linear track 3 is arranged at the bottom of the cross beam 2 along the length direction, and a sports car 4 and a linear motor 5 for pushing the sports car 4 to walk along the linear track 3 are arranged on the linear track 3;
the polishing mechanism comprises a mounting cylinder 6, an iron core 7, a coil 8, a magnetic block 9, a counter-force spring 10, a vertical rod 11, a polishing wheel 12 and a rotating motor 13, wherein the mounting cylinder 6 is vertically and downwardly fixed at the bottom of the sports car 4, the iron core 7 is vertically fixed at the inner top of the mounting cylinder 6, the coil 8 is wound on the iron core, the counter-force spring 10 is vertically fixed at the inner bottom of the mounting cylinder 6, the magnetic block 9 is fixed at the top end of the counter-force spring, the iron core 7 generates downward repulsive force to the magnetic block 9 after being magnetized, the vertical rod 11 is vertically connected to the bottom of the magnetic block 9, the lower end of the vertical rod penetrates out of the bottom of the mounting cylinder 6, the polishing wheel 12 is rotatably mounted at the lower end of the vertical rod 11, and the rotating motor 13 is mounted on the vertical rod 11 and connected with the polishing wheel 12 for driving the polishing wheel 12 to rotate;
the detection mechanism comprises a support 14, an adjustable resistor 15 and a probe 16, wherein the support 14 is fixed at the bottom of the sports car 4 and is positioned at the front end of the installation cylinder 6 along the advancing direction of the sports car 4, the adjustable resistor 15 is fixed on the support 14, the probe 16 is vertically arranged, the lower end of the probe is flush with the bottom of the polishing wheel 12, the upper end of the probe is fixedly connected to an adjusting part 17 of the adjustable resistor 15, and the adjusting part 17 is driven to move through the up-and-down movement of the probe 16, so that the actual resistance value of the adjusting resistor 15 is changed;
the adjustable resistor 15 and the coil 8 are connected in series in the same circuit, and when the probe rod 16 moves upwards, the adjusting component 17 is driven to move, so that the actual resistance value of the adjustable resistor 15 is increased, the current passing through the coil 8 is further reduced, and the repulsive force of the iron core 7 to the magnetic blocks 9 is reduced;
when the probe rod 16 moves downwards, the adjusting component 17 is driven to move, so that the actual resistance value of the adjustable resistor 15 is reduced, the current passing through the coil 8 is increased, and the repulsive force of the iron core 7 to the magnetic blocks 9 is increased.
The equipment is used for polishing the surface of a tiled brick layer, when in use, the supports of a vertical frame 1 with the brick layer tiled at two sides drive a polishing mechanism to walk on the surface of the brick layer by the walking of a carriage 4 on a linear track 3, the polishing wheel 12 at the bottom of the polishing mechanism realizes the polishing of the surface of the brick layer, the front end of the polishing mechanism is provided with a detection mechanism, a probe rod 16 at the bottom of the detection mechanism moves up and down according to the convex-concave condition of the surface shape of the brick layer when sliding on the surface of the brick layer, the actual resistance value of an adjustable resistor 15 is changed by the movement of the probe rod 16, the adjustable resistor 15 and a coil 8 are connected in series in the same circuit, after the actual resistance of the adjustable resistor 15 is changed, the current of the coil 8 is correspondingly changed, so that the magnetic field intensity of an iron core 7 is changed, the repulsive force of the iron core 7 to magnetic blocks 9 is changed, and the magnetic blocks 9 move upwards (under the action of a counter-force spring 10) or downwards, the polishing wheel 12 is driven to move up and down, the up-and-down movement of the polishing wheel 12 is matched with the convexity and concavity of the surface of the brick layer, and the surface of the brick layer is prevented from being damaged while effective polishing is realized.
Specifically, when the polishing wheel moves to the position of the convex surface of the brick layer, the probe rod 16 moves upwards to drive the adjusting component 17 to move, so that the actual resistance value of the adjustable resistor 15 is increased, the current passing through the coil 8 is further reduced, the magnetic field of the iron core 7 is weakened, the repulsive force of the iron core 7 to the magnetic blocks 9 is reduced, the magnetic blocks 9 are lifted under the action of the counterforce spring 10 to drive the polishing wheel 12 to lift, and the polishing wheel 12 is prevented from grinding the convex shape of the surface of the brick layer; when the polishing wheel 12 is driven to move to the position where the surface of the brick layer is sunken, the probe rod 16 moves downwards under the action of gravity to drive the adjusting component 17 to move, so that the actual resistance value of the adjustable resistor 15 is reduced, the current passing through the coil 8 is increased, the magnetic field of the iron core 7 is enhanced, the repulsive force of the iron core 7 to the magnetic blocks 9 is increased, the magnetic blocks 9 are pushed to descend, the polishing wheel 12 is driven to descend, and the situation that the polishing wheel 12 does not contact the sunken position of the surface of the brick layer and does not achieve effective polishing is avoided.
In addition, in order to reduce the response error between the polishing mechanism and the detecting mechanism, the linear distance between the lower end of the probe 16 and the bottom of the polishing wheel 12 should be reduced as much as possible during the manufacture of the device.
The lower end of the probe 16 has a ball head to allow it to slide smoothly along the surface of the brick.
A lifting platform 18 for laying bricks is arranged below the machine frame, and after the brick layer is laid on the lifting platform 18, the proper contact degree between the polishing wheel 12 and the surface of the brick layer can be achieved through the lifting of the lifting platform 18 so as to meet the requirement of the polishing degree.
The mounting cylinder 6 is made of a yoke material so as to lock the magnetic field generated by the iron core 7 and avoid differential response errors due to leakage of the magnetic field.
In another embodiment of the present invention, a time relay 19 for time delay is connected in the series circuit of the adjustable resistor 15 and the coil 8, and the time delay of the time relay 19 multiplied by the walking speed of the sports car 4 is equal to the linear distance between the lower end of the probe 16 and the bottom of the polishing wheel 12. As shown in fig. 2, when the probe 16 moves to drive the adjusting component 17 to move, the actual resistance value of the adjustable resistor 15 changes, the current magnitude changes due to the change of the actual resistance value, the time relay 19 is installed in the current flowing direction, the coil 8 is located behind the time relay 19 along the current flowing direction, the current has a certain time delay when flowing through the time relay, the time delay is T, that is, the current from the movement of the probe 16 to the passage of the coil 8 changes, the response time is T, the sport car moving speed is S, and the linear distance between the lower end of the probe 16 and the bottom of the polishing wheel 12 is D, the embodiment limits D to T S, that is, when the probe 16 moves up and down, the polishing wheel 12 does not move up and down immediately, but moves up and down after moving the distance D, so the polishing wheel 12 moves up and down in response when moving to the position before the probe 16, therefore, the embodiment can effectively eliminate errors caused by the response time of the polishing mechanism, further improve the polishing effect, achieve effective polishing and avoid grinding modeling.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.

Claims (9)

1. A preparation process of dry-grain half-polished bricks is characterized by comprising the following steps:
the method comprises the following steps of firstly, carrying out surface water spraying treatment on a green brick, and spraying an antique overglaze on the surface of the green brick by utilizing a wire mesh capable of forming patterns on the green brick to form an antique overglaze layer with the patterns;
step two, spraying a printing glaze on the antique overglaze layer, and coating a layer of protective glaze on the surface of the antique overglaze layer;
thirdly, continuously spraying dry granular glaze on the surface of the protective glaze, and calcining at the high temperature of 1100-1300 ℃ to form semitransparent concave-convex crystals on the surface of the antique glaze;
and step four, grinding and polishing are carried out according to the concave-convex degree of the concave-convex crystals on the upper surface of the glazed surface of the green brick by utilizing the flexible polishing device, so that the dry-grain half-polished brick is obtained.
2. The process for preparing the dry grain semi-polished tile according to claim 1, wherein the green tile is prepared from the following raw materials in parts by weight:
3-5 parts of black mud, 40-45 parts of medium temperature sand, 1-3 parts of calcined high alumina, 1-3 parts of strong plastic soil, 5-10 parts of high temperature sand, 1-3 parts of magnesium mud, 10-20 parts of white mud, 10-12 parts of medium temperature sand and 1-5 parts of high alumina.
3. The preparation process of the dry grain half-polished tile according to claim 1, wherein the decal is prepared from the following raw materials in parts by weight: 30-40 parts of potassium feldspar, 10-30 parts of albite, 5-20 parts of barium carbonate, 1-5 parts of zinc oxide, 1-5 parts of calcined talc, 3-5 parts of wollastonite, 12-16 parts of washing soil, 5-10 parts of alumina, 4-10 parts of quartz, 3-10 parts of white corundum, 10-20 parts of zirconium silicate, 120-130 parts of vegetable oil and 5-10 parts of glycerol.
4. The preparation process of the dry grain semi-polished tile according to claim 1, wherein the dry grain glaze is prepared from the following raw materials in parts by weight: 1-5 parts of dry particles, 5-8 parts of glaze slip, 100-140 parts of suspending agent, 3-10 parts of alkyl polyglycoside, 20-30 parts of glue, 5-10 parts of dicumyl peroxide, 5-10 parts of rubber, 5-10 parts of nano graphene particles and 20-30 parts of polyacrylamide anions.
5. The process for preparing the dry grain semi-polished tile according to claim 4, wherein the dry grain glaze is prepared by the following method:
a) mixing glaze slip, a suspending agent, alkyl polyglycoside and polyacrylamide anions, heating in an oven at 40-50 ℃, and stirring while heating to obtain a mixture A;
b) melting and blending dicumyl peroxide and rubber at 170 ℃, activating for 10-20min, adding nano graphene particles, and fully stirring to obtain a mixture B;
c) and mixing the mixture A and the mixture B, placing the mixture A and the mixture B in a closed container, reacting for 15min under the pressure of 5-7Mpa, then heating to 200 ℃, preserving the temperature for 10min, and respectively adding dry particles to obtain the dry particle glaze.
6. The process for preparing a dry-grain semi-polished tile according to claim 1, wherein the flexible polishing apparatus comprises:
the trolley comprises a rack, a trolley body and a trolley body, wherein the rack consists of vertical frames on two sides and a cross beam fixed at the top of the vertical frames, a linear track is arranged at the bottom of the cross beam along the length direction, and a trolley and a linear motor for pushing the trolley to walk along the linear track are arranged on the linear track; a lifting platform for laying bricks is arranged below the rack;
the polishing mechanism comprises an installation barrel, an iron core, a coil, a magnetic block, a counter-force spring, a vertical rod, a polishing wheel and a rotating motor, wherein the installation barrel is vertically and downwards fixed at the bottom of the sports car;
the detection mechanism comprises a support, an adjustable resistor and a probe rod, the support is fixed at the bottom of the sports car and is positioned at the front end of the mounting cylinder along the advancing direction of the sports car, the adjustable resistor is fixed on the support, the probe rod is vertically arranged, the lower end of the probe rod is flush with the bottom of the polishing wheel, the upper end of the probe rod is fixedly connected to an adjusting part of the adjustable resistor, and the adjusting part is driven to move through the up-and-down movement of the probe rod so as to change the actual resistance value of the adjusting resistor;
the adjustable resistor and the coil are connected in the same circuit in series, and when the probe rod moves upwards, the adjusting component is driven to move, so that the actual resistance value of the adjustable resistor is increased, the current passing through the coil is further reduced, and the repulsive force of the iron core to the magnetic blocks is reduced;
when the probe rod moves downwards, the adjusting part is driven to move, so that the actual resistance value of the adjustable resistor is reduced, the current passing through the coil is increased, and the repulsive force of the iron core to the magnetic block is increased.
7. The process for preparing a dry semi-polished brick according to claim 6, wherein the lower end of the probe has a ball head so that the probe can smoothly slide along the surface of the brick.
8. The process for preparing a dry grain semi-polished tile according to claim 6, wherein the mounting cylinder is made of a magnetic yoke material
Preparing the materials.
9. The process for preparing the dry grain semi-polished tile as claimed in any one of claims 6 to 8, wherein a time relay for time delay is connected in a series circuit of the adjustable resistor and the coil, and the multiplication of the time delay of the time relay and the traveling speed of the sports car is equal to the linear distance between the lower end of the probe rod and the bottom of the polishing wheel.
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