CN109458603B - Preparation method of ceramic shell structure with high light transmittance - Google Patents
Preparation method of ceramic shell structure with high light transmittance Download PDFInfo
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- CN109458603B CN109458603B CN201811109978.6A CN201811109978A CN109458603B CN 109458603 B CN109458603 B CN 109458603B CN 201811109978 A CN201811109978 A CN 201811109978A CN 109458603 B CN109458603 B CN 109458603B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
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- F21V15/00—Protecting lighting devices from damage
- F21V15/01—Housings, e.g. material or assembling of housing parts
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- 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
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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
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- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
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- 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
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- 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
- C04B41/85—Coating or impregnation with inorganic materials
- C04B41/86—Glazes; Cold glazes
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- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
- F21V29/507—Cooling arrangements characterised by the adaptation for cooling of specific components of means for protecting lighting devices from damage, e.g. housings
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- F21—LIGHTING
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- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
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- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
- F21V29/86—Ceramics or glass
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
- F21V7/28—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by coatings
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- 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
- C04B2235/3436—Alkaline earth metal silicates, e.g. barium silicate
- C04B2235/3445—Magnesium silicates, e.g. forsterite
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- 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
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
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- C04B2235/6567—Treatment time
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Abstract
The invention discloses a preparation method of a ceramic shell structure with high light transmittance, which comprises the steps of preparing a combined shell, preparing a light-transmitting cover, preparing a connecting lamp holder, assembling the combined shell, the connecting lamp holder and the light-transmitting cover, preparing the light-transmitting cover, taking raw materials according to weight fractions, adding the raw materials into a mixing cylinder for uniform mixing, preparing a substrate layer with a hemispherical shell structure through a die after melt extrusion, plating an optical coating layer on the substrate layer, bonding a toughened glass layer on the outer surface of the substrate layer, and completing the preparation of the light-transmitting cover; the method for preparing the combined shell comprises the following specific steps: (1) preparing a supporting shell, (2) preparing a heat dissipation insulating shell; (3) the ceramic shell is light in weight, good in heat dissipation performance, long in service life and high in light reflectivity and light transmissivity.
Description
Technical Field
The invention belongs to the technical field of illumination, and particularly relates to a preparation method of a ceramic shell structure with high light transmittance.
Background
With the development of science and technology, various kinds of lamp decorations emerge endlessly, bring brightness to people, and beautify the living environment of people at the same time, the lampshade is an indispensable component of the lamp decorations, but the function of the existing lampshade is mainly to provide a part of reflected light for the irradiation area to enhance the brightness of the irradiation area, and meanwhile, the decoration of the lamp decorations is enhanced through the lampshade with different shapes. The existing ceramic lamp shell mainly has the following problems: the utilization rate and the transmissivity of the reflected light of the lampshade are relatively low, most of light sources are wasted, and a considerable part of the light is transferred into heat energy which is conducted to the lampshade and is emitted to the surrounding air, so that the service life of the lampshade is short; because porcelain is fragile, a ceramic lamp is required to have higher strength and earthquake-resistant performance; the ceramic used as the shell of the LED lamp in the current market is mainly alumina ceramic and steatite ceramic, and the ceramic material can effectively solve the problems of heat dissipation and insulation of the LED.
Disclosure of Invention
In order to solve the defects of the problems, the invention provides a preparation method of a ceramic shell structure with high light transmission, and the ceramic shell has the advantages of light weight, good heat dissipation performance, long service life, higher safety and practicability, higher light reflectivity and higher light transmittance and is beneficial to saving energy.
In order to achieve the purpose, the invention adopts the following technical scheme: a preparation method of a high-light-transmittance ceramic shell structure comprises the following steps: the manufacturing method comprises the following steps of preparing a combined shell, preparing a light-transmitting cover, preparing a connecting lamp cap, and assembling the combined shell, the connecting lamp cap and the light-transmitting cover, wherein the specific method of the step of preparing the combined shell comprises the following steps:
step one, preparing a light-transmitting cover, namely taking 90-110 parts of polycarbonate, 12-16 parts of polymethyl methacrylate, 8-12 parts of light scattering master batch, 2-3 parts of methoxy polyglycol acetic acid and 2-4 parts of compatilizer according to weight fraction, adding the materials into a mixing barrel to be uniformly mixed for 6-12min, carrying out melt extrusion on the mixed materials by adopting a double-screw extruder, carrying out extrusion at the temperature of 220-260 ℃, making a substrate layer of a hemispherical shell structure through a die after melting, ensuring that the edge of the hemispherical structure is in rotary connection with an upper supporting shell, plating nano particles on the inner surface of the substrate layer by a sputtering method on the inner side of the substrate layer, bonding a prefabricated toughened glass layer on the outer surface of the substrate layer, and finishing the light-transmitting cover for later use;
step two, preparing the combined shell, wherein the specific method comprises the following steps: preparing a support shell, selecting a metal material, stretching and stamping the metal material, and processing the metal material to a specified size for later use; the preparation method of the heat dissipation insulating shell comprises the following specific steps:
a. the steps for preparing the green body are as follows: (1) crushing the waste tiles and the ceramic polishing slag into particles for later use; (2) uniformly mixing waste tiles, ceramic polishing slag, kaolin, medical stone and talcum powder to prepare a raw material, adding water with the mass of 0.3-0.45 time of that of the raw material into the raw material, adding the raw material into a ball mill, and carrying out ball milling to obtain slurry with the particle size of 100 meshes and 120 meshes; (3) making blank by slip casting, drying by blowing at 40-55 ℃ for 12-16h, and then demoulding after the porcelain blank is dried; (4) trimming and washing the dried green body; firing the lamp blank for the first time at the firing temperature of 600-650 ℃ for 6-8h to obtain a porcelain blank for later use;
b. the glaze material is prepared by the following steps: (1) taking feldspar, alkali stone, calcite, black Ru stone, agate stone and polishing porcelain powder as required raw materials; (2) uniformly mixing the ingredients, and adding the mixture into a ball mill for ball milling for 22-26 h; (3) sieving the ball-milled slurry by using a screen with the fineness of 200 meshes to obtain glaze slurry for later use;
c. the glazing steps are as follows: b, carrying out glaze dipping on the porcelain blank obtained in the step a for the first time, and preserving heat at 45-65 ℃; brushing glaze on the glaze surface, blowing and drying for 1-2h at room temperature, soaking the glaze surface for the second time, and preserving heat at 65-85 ℃;
d. the firing steps are as follows: c, firing the glazed porcelain body of the lamp in a kiln, and cooling to obtain a finished product;
e. coating a reflecting layer, selecting a ceramic reflecting material, coating the ceramic reflecting material on the inner wall of the supporting shell, and forming a ceramic reflecting layer with the thickness of 1-2mm on the inner part of the supporting shell for later use;
f. the shell is assembled in a butt joint mode, an adhesive layer is coated on the outer wall of the supporting shell, the heat conducting material is bonded on the outer wall of the supporting shell to form a heat conducting medium layer with the thickness of 2-3mm, and the heat radiating insulating shell which is prepared in advance is bonded and sleeved outside the heat conducting medium layer;
and step three, fixing the combined type shell on a prefabricated connecting lamp holder, and screwing the light-transmitting cover below the combined type shell to complete the manufacturing.
The scheme is further improved, and the optical coating layer is a nano mirror coating layer.
According to the scheme, the optical coating layer is made of silicon dioxide.
According to the scheme, the reflection layer has a reflectivity of more than 82% for visible light with the wavelength of 420-800 nm.
According to the scheme, the radiating fins are wave-shaped or vertical stripe-shaped.
According to the scheme, the particle size of the polished porcelain powder in the raw materials of the glaze is 10-50 mu m.
The invention has the following beneficial effects:
1. the ceramic shell structure with high light transmittance is reasonable in design and good in light transmittance, is formed by combining the ceramic material and the metal supporting shell, is low in manufacturing cost, and can greatly improve the assembly efficiency by butting and combining all parts in a nested manner. The binding details were analyzed as follows: the light-transmitting cover and the light shield are connected in a screwing mode, assembly and butt joint are facilitated, replacement of a luminous body is facilitated, an optical coating layer is arranged in the light-transmitting cover, light transmittance of the lampshade is effectively improved, a toughened glass layer is arranged outside the light-transmitting cover, the base material layer can be effectively prevented from being scratched, and meanwhile the overall strength of the lampshade can be improved; support the shell and adopt metal material to make, make itself have higher intensity, support the inside ceramic reflector layer that sets up of shell, can promote light reflection effect and soft degree greatly, and ceramic reflector material has the yellow fastness, can prolong its life greatly, support the outside heat conduction medium layer that sets up of shell, adopt graphite-based material to make, can promote device's heat conductivity greatly, explosion-proof and security, owing to be provided with heat radiation fins, the heat dissipation insulating casing has higher thermal diffusivity, utilize the high insulating properties of pottery itself can further promote insulating effect.
2. In the preparation process of the combined shell, the formula of the blank and the glaze is specially limited in the ball milling time, the glazing method, the heat preservation time, the firing temperature and the firing time of the raw materials, and the blank is processed at a series of temperatures to obtain a high-strength blank, and the glaze of the lamp shell has good heat dissipation insulating property, corrosion resistance and weathering resistance.
Drawings
FIG. 1 is a cross-sectional view of a modular housing of the present invention;
FIG. 2 is a cross-sectional view of a light transmissive cover of the present invention;
the labels in the figure are: 1. the combined type solar cell module comprises a combined type shell, 101, a supporting shell, 102, a heat dissipation insulating shell, 103, heat dissipation fins, 104, a light reflecting layer, 105, a heat conducting medium layer, 2, a light transmitting cover, 201, a base material layer, 202, an optical coating layer, 203 and a toughened glass layer.
Detailed Description
The technical solution of the present invention is further described below with reference to specific embodiments.
Before describing the scheme, firstly, the structure of the light-transmitting cover 2 in the invention is described, the light-transmitting cover 2 comprises a substrate layer 201, an optical coating layer 202 and a toughened glass layer 203, the optical coating layer 202 is arranged on the inner side of the substrate layer 201, and the toughened glass layer 203 is arranged on the outer side of the substrate layer 201; the combined shell 1 comprises a supporting shell 101 and a heat dissipation insulating shell 102, wherein the supporting shell 101 is arranged on the inner layer, the heat dissipation insulating shell 102 is embedded outside the supporting shell 101, the supporting shell 101 is made of a metal material, the heat dissipation insulating shell 102 is made of a ceramic material, the heat dissipation insulating shell 102 comprises a blank and glaze, heat dissipation fins 103 and heat dissipation fins 10 are arranged outside the heat dissipation insulating shell 102
3 is wave-shaped or vertical stripe-shaped, and a reflecting layer 104 made of ceramic material is coated on the inner wall of the supporting shell 101. The ceramic reflective material of the reflective layer 104 is prepared from ceramic ink, which is a resin composition containing alumina or titanium oxide, and has high reflectivity and yellowing resistance.
Example 1
A preparation method of a high-light-transmittance ceramic shell structure comprises the following steps: the step of preparing combination formula casing 1, the step of preparing printing opacity cover 2, the step of preparing the connection lamp holder, the step of assembling combination formula casing 1, connection lamp holder and printing opacity cover 2, its characterized in that: the method for preparing the combined shell 1 comprises the following specific steps:
step one, preparing a light-transmitting cover 2, taking 100 parts of polycarbonate, 14 parts of polymethyl methacrylate, 10 parts of light scattering master batch, 2.5 parts of methoxy polyglycol acetic acid and 3 parts of compatilizer according to weight fraction, adding the materials into a mixing barrel to be uniformly mixed for 9min, carrying out melt extrusion on the mixed materials by adopting a double-screw extruder, carrying out melt extrusion at the extrusion temperature of 240 ℃, making the melted materials into a substrate layer 201 of a hemispherical shell structure through a die, ensuring that the edge of the hemispherical structure is rotatably connected with a supporting shell 101 for installation, plating nano particles on the inner surface of the substrate layer 201 through a sputtering method to form an optical coating layer 202, bonding a prefabricated toughened glass layer 203 on the outer surface of the substrate layer 201, and completing the preparation of the light-transmitting cover 2 for later use; the optical coating layer 202 is a nano mirror coating layer. The optical coating layer 202 is made of silicon dioxide material.
Step two, preparing the combined shell 1, wherein the specific method comprises the following steps: 1. selecting the material of the metal material required by the supporting shell 101 according to the requirement; cold rolling the selected metal material; 2. stretching and stamping the metal material; 3. welding in a brazing mode; 4. turning threads on the inner ring of the lower opening of the support shell 101 welded in the step 3; 5. carrying out ultrasonic cleaning on the surface of the supporting shell 101 obtained in the step 4; 6. drying the support shell 101 cleaned in the step 3 at the temperature of 75 ℃; 7. the dried supporting case 101 is coated with a graphite-based material on the outside, and a ceramic light reflecting material on the inside of the supporting case 101.
The heat dissipation insulating shell 102 is prepared by the following specific steps:
a. the steps for preparing the green body are as follows: 1. crushing the waste tiles and the ceramic polishing slag into particles for later use; 2. after 16.5 parts of waste tiles, 20 parts of ceramic polishing slag, 18.5 parts of kaolin, 14 parts of medical stone and 12 parts of talcum powder are uniformly mixed to prepare a raw material, adding water with the mass of 0.4 time of that of the raw material into a ball mill, and ball-milling the raw material into slurry with the particle size of 100 meshes and 120 meshes; 3. forming a blank body by slip casting, drying the blank body by blowing air at 50 ℃ for 14h, and then demoulding after the ceramic blank body is dried; 4. trimming the dried blank body to manufacture the radiating fins 103 and washing water; firing the lamp blank for the first time at the firing temperature of 600-650 ℃ for 7h to obtain a porcelain blank for later use;
b. the glaze material is prepared by the following steps: 1. taking 35 parts of feldspar, 20 parts of alkali stone, 9 parts of calcite, 15 parts of black Ru stone, 14 parts of agate stone and 21.5 parts of polished porcelain powder as required raw materials; the grain size of the polished porcelain powder is 10-50 μm. The polishing ceramic powder is one or more of mullite and silica glass phase, and is obtained by pretreating the mullite and silica glass phase polishing ceramic powder. 2. Uniformly mixing the ingredients, adding the mixture into a ball mill, and carrying out ball milling for 24 hours; 3. sieving the ball-milled slurry by using a screen with the fineness of 200 meshes to obtain glaze slurry for later use;
c. the glazing steps are as follows: b, carrying out glaze dipping on the porcelain blank obtained in the step a for the first time, and preserving heat at 55 ℃; brushing glaze on the glaze surface, blowing and drying for 1.5h at room temperature, soaking the glaze surface for the second time, and preserving heat at 75 ℃;
d. the firing steps are as follows: c, firing the glazed porcelain body of the lamp in a kiln, and cooling to obtain a finished product;
e. coating a reflecting layer 104, selecting a ceramic reflecting material, coating the ceramic reflecting material on the inner wall of the supporting shell 101, and forming a ceramic reflecting layer 104 with the thickness of 1-2mm on the inner part of the supporting shell 101 for later use; the reflective layer 104 has a reflectivity of 82% or more for visible light having a wavelength of 420 to 800 nm. The ceramic reflective material of the reflective layer 104 is prepared from ceramic ink, and the ceramic ink is a resin composition containing alumina or titanium oxide and other components, and has high reflective rate and yellowing resistance;
f. the shell is assembled in a butt joint mode, an adhesive layer is coated on the outer wall of the supporting shell 101, the heat conducting material is bonded on the outer wall of the supporting shell 101 to form a heat conducting medium layer 105 with the thickness of 2-3mm, the heat radiating insulating shell 102 which is prepared in advance is bonded and sleeved outside the heat conducting medium layer 105, and the heat conducting medium layer 105 is made of a graphite-based composite material;
and step three, fixing the combined type shell 1 on a prefabricated connecting lamp holder, and screwing the light-transmitting cover 2 below the combined type shell 1 to finish the manufacture.
Example 2
A preparation method of a high-light-transmittance ceramic shell structure comprises the following steps: the step of preparing combination formula casing 1, the step of preparing printing opacity cover 2, the step of preparing the connection lamp holder, the step of assembling combination formula casing 1, connection lamp holder and printing opacity cover 2, its characterized in that: the method for preparing the combined shell 1 comprises the following specific steps:
step one, preparing a light-transmitting cover 2, taking 90 parts of polycarbonate, 12 parts of polymethyl methacrylate, 8 parts of light scattering master batch, 2 parts of methoxy polyglycol acetic acid and 2 parts of compatilizer according to weight fraction, adding the materials into a mixing barrel to be uniformly mixed for 6min, carrying out melt extrusion on the mixed materials by adopting a double-screw extruder, carrying out extrusion at the temperature of 220 ℃, melting, then making the melted materials into a substrate layer 201 with a hemispherical shell structure through a die, ensuring that the edge of the hemispherical structure is rotatably connected with and mounted on a support shell 101, plating nano particles on the inner surface of the substrate layer 201 through a sputtering method to form an optical coating layer 202, bonding a prefabricated toughened glass layer 203 on the outer surface of the substrate layer 201, and finishing the manufacture of the light-transmitting cover 2 for later use; the optical coating layer 202 is a nano mirror coating layer. The optical coating layer 202 is made of silicon dioxide material.
Step two, preparing the combined shell 1, wherein the specific method comprises the following steps: 1. selecting the material of the metal material required by the supporting shell 101 according to the requirement; cold rolling the selected metal material; 2. stretching and stamping the metal material; 3. welding in a brazing mode; 4. turning threads on the inner ring of the lower opening of the support shell 101 welded in the step 3; 5. carrying out ultrasonic cleaning on the surface of the supporting shell 101 obtained in the step 4; 6. drying the support shell 101 cleaned in the step 3 at the temperature of 65 ℃; 7. the dried supporting case 101 is coated with a graphite-based material on the outside, and a ceramic light reflecting material on the inside of the supporting case 101.
The heat dissipation insulating shell 102 is prepared by the following specific steps:
a. the steps for preparing the green body are as follows: 1. crushing the waste tiles and the ceramic polishing slag into particles for later use; 2. taking 15 parts of waste tiles, 18 parts of ceramic polishing residues, 15 parts of kaolin, 12 parts of medical stone and 8 parts of talcum powder, uniformly mixing to obtain a raw material, adding water with the mass of 0.3 time of that of the raw material into the raw material, adding the raw material into a ball mill, and ball-milling the raw material into slurry with the particle size of 100 meshes and 120 meshes; 3. forming a blank body by slip casting, drying the blank body by blowing air at 40 ℃ for 12h, and then demoulding after the porcelain blank body is dried; 4. trimming the dried blank body to manufacture the radiating fins 103 and washing water; firing the lamp blank for the first time at the firing temperature of 600-650 ℃ for 6h to obtain a porcelain blank for later use;
b. the glaze material is prepared by the following steps: 1. taking 30 parts of feldspar, 15 parts of alkali stone, 6 parts of calcite, 12 parts of black Ru stone, 8 parts of agate stone and 18 parts of polished porcelain powder as required raw materials; the grain size of the polished porcelain powder is 10-50 μm. The polishing ceramic powder is one or more of mullite and silica glass phase, and is obtained by pretreating the mullite and silica glass phase polishing ceramic powder. 2. Uniformly mixing the ingredients, adding the mixture into a ball mill, and carrying out ball milling for 22 hours; 3. sieving the ball-milled slurry by using a screen with the fineness of 200 meshes to obtain glaze slurry for later use;
c. the glazing steps are as follows: c, carrying out glaze dipping on the porcelain blank obtained in the step a for the first time, and preserving heat at 45 ℃; brushing glaze on the glaze surface, blowing and drying for 2h at room temperature, soaking the glaze surface for the second time, and preserving heat at 65 ℃;
d. the firing steps are as follows: c, firing the glazed porcelain body of the lamp in a kiln, and cooling to obtain a finished product;
e. coating a reflecting layer 104, selecting a ceramic reflecting material, coating the ceramic reflecting material on the inner wall of the supporting shell 101, and forming a ceramic reflecting layer 104 with the thickness of 1-2mm on the inner part of the supporting shell 101 for later use; the reflective layer 104 has a reflectivity of 82% or more for visible light having a wavelength of 420 to 800 nm. The ceramic reflective material of the reflective layer 104 is prepared from ceramic ink, and the ceramic ink is a resin composition containing alumina or titanium oxide and other components, and has high reflective rate and yellowing resistance;
f. the shell is assembled in a butt joint mode, an adhesive layer is coated on the outer wall of the supporting shell 101, the heat conducting material is bonded on the outer wall of the supporting shell 101 to form a heat conducting medium layer 105 with the thickness of 2-3mm, the heat radiating insulating shell 102 which is prepared in advance is bonded and sleeved outside the heat conducting medium layer 105, and the heat conducting medium layer 105 is made of a graphite-based composite material;
and step three, fixing the combined type shell 1 on a prefabricated connecting lamp holder, and screwing the light-transmitting cover 2 below the combined type shell 1 to finish the manufacture.
Example 3
A preparation method of a high-light-transmittance ceramic shell structure comprises the following steps: the step of preparing combination formula casing 1, the step of preparing printing opacity cover 2, the step of preparing the connection lamp holder, the step of assembling combination formula casing 1, connection lamp holder and printing opacity cover 2, its characterized in that: the method for preparing the combined shell 1 comprises the following specific steps:
preparing a light-transmitting cover 2, taking 110 parts of polycarbonate, 16 parts of polymethyl methacrylate, 12 parts of light scattering master batch, 3 parts of methoxy polyglycol acetic acid and 4 parts of compatilizer according to weight fractions, adding the materials into a mixing barrel to be uniformly mixed for 12min, carrying out melt extrusion on the mixed materials by adopting a double-screw extruder, carrying out extrusion at the temperature of 260 ℃, making the melted materials into a substrate layer 201 with a hemispherical shell structure through a die, ensuring that the edge of the hemispherical structure is rotatably connected with and mounted on a support shell 101, plating nano particles on the inner surface of the substrate layer 201 through a sputtering method to form an optical coating layer 202, bonding a prefabricated toughened glass layer 203 on the outer surface of the substrate layer 201, and finishing the manufacture of the light-transmitting cover 2 for later use; the optical coating layer 202 is a nano mirror coating layer. The optical coating layer 202 is made of silicon dioxide material.
Step two, preparing the combined shell 1, wherein the specific method comprises the following steps: 1. selecting the material of the metal material required by the supporting shell 101 according to the requirement; cold rolling the selected metal material; 2. stretching and stamping the metal material; 3. welding in a brazing mode; 4. turning threads on the inner ring of the lower opening of the support shell 101 welded in the step 3; 5. carrying out ultrasonic cleaning on the surface of the supporting shell 101 obtained in the step 4; 6. drying the support shell 101 cleaned in the step 3 at 85 ℃; 7. the dried supporting case 101 is coated with a graphite-based material on the outside, and a ceramic light reflecting material on the inside of the supporting case 101.
The heat dissipation insulating shell 102 is prepared by the following specific steps:
a. the steps for preparing the green body are as follows: 1. crushing the waste tiles and the ceramic polishing slag into particles for later use; 2. taking 18 parts of waste tiles, 22 parts of ceramic polishing residues, 22 parts of kaolin, 16 parts of medical stone and 16 parts of talcum powder, uniformly mixing to obtain a raw material, adding water with the mass of 0.45 time of that of the raw material into the raw material, adding the raw material into a ball mill, and ball-milling the raw material into slurry with the particle size of 100 meshes and 120 meshes; 3. forming a blank body by slip casting, drying the blank body by blowing air at 55 ℃ for 16h, and then demoulding after the porcelain blank body is dried; 4. trimming the dried blank body to manufacture the radiating fins 103 and washing water; firing the lamp blank for the first time at the firing temperature of 600-650 ℃ for 8h to obtain a porcelain blank for later use;
b. the glaze material is prepared by the following steps: 1. taking 40 parts of feldspar, 25 parts of alkali stone, 12 parts of calcite, 18 parts of black Ru stone, 20 parts of agate stone and 25 parts of polished porcelain powder; the grain size of the polished porcelain powder is 10-50 μm. The polishing ceramic powder is one or more of mullite and silica glass phase, and is obtained by pretreating the mullite and silica glass phase polishing ceramic powder. 2. Uniformly mixing the ingredients, adding the mixture into a ball mill, and carrying out ball milling for 26 hours; 3. sieving the ball-milled slurry by using a screen with the fineness of 200 meshes to obtain glaze slurry for later use;
c. the glazing steps are as follows: c, carrying out glaze dipping on the porcelain blank obtained in the step a for the first time, and preserving heat at 65 ℃; brushing glaze on the glaze surface, blowing and drying for 1h at room temperature, soaking the glaze surface for the second time, and preserving heat at 85 ℃;
d. the firing steps are as follows: c, firing the glazed porcelain body of the lamp in a kiln, and cooling to obtain a finished product;
e. coating a reflecting layer 104, selecting a ceramic reflecting material, coating the ceramic reflecting material on the inner wall of the supporting shell 101, and forming a ceramic reflecting layer 104 with the thickness of 1-2mm on the inner part of the supporting shell 101 for later use; the reflective layer 104 has a reflectivity of 82% or more for visible light having a wavelength of 420 to 800 nm. The ceramic reflective material of the reflective layer 104 is prepared from ceramic ink, and the ceramic ink is a resin composition containing alumina or titanium oxide and other components, and has high reflective rate and yellowing resistance;
f. the shell is assembled in a butt joint mode, an adhesive layer is coated on the outer wall of the supporting shell 101, the heat conducting material is bonded on the outer wall of the supporting shell 101 to form a heat conducting medium layer 105 with the thickness of 2-3mm, the heat radiating insulating shell 102 which is prepared in advance is bonded and sleeved outside the heat conducting medium layer 105, and the heat conducting medium layer 105 is made of a graphite-based composite material;
and step three, fixing the combined type shell 1 on a prefabricated connecting lamp holder, and screwing the light-transmitting cover 2 below the combined type shell 1 to finish the manufacture.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (5)
1. A preparation method of a high-light-transmittance ceramic shell structure comprises the following steps: the method comprises the steps of preparing a combined shell (1), preparing a light-transmitting cover (2), preparing a connecting lamp cap, and assembling the combined shell (1), the connecting lamp cap and the light-transmitting cover (2), and is characterized in that: the method for preparing the combined shell comprises the following specific steps:
step one, preparing a light-transmitting cover (2), taking 90-110 parts of polycarbonate, 12-16 parts of polymethyl methacrylate, 8-12 parts of light scattering master batch, 2-3 parts of methoxy polyglycol acetic acid and 2-4 parts of compatilizer according to weight fraction, adding the materials into a mixing barrel to be uniformly mixed for 6-12min, carrying out melt extrusion on the mixed materials by adopting a double-screw extruder, wherein the extrusion temperature is 220-260 ℃, making a substrate layer (201) with a hemispherical shell structure through a mold after melting, plating nano particles on the inner surface of the substrate layer (201) through a sputtering method on the inner side of the substrate layer (201) to form an optical coating layer (202), bonding a prefabricated toughened glass layer (203) on the outer surface of the substrate layer (201), and completing the preparation of the light-transmitting cover (2) for later use;
step two, preparing the combined shell (1), wherein the specific method comprises the following steps: preparing a supporting shell (101), selecting a metal material, stretching and stamping the metal material, processing the metal material to a specified size for later use, and after the supporting shell (101) is prepared, ensuring that the supporting shell (101) is screwed and installed with the edge of the hemispherical shell structure in the step one; the preparation method of the heat dissipation insulating shell (102) comprises the following specific steps:
a. the steps for preparing the green body are as follows: (1) crushing the waste tiles and the ceramic polishing slag into particles for later use; (2) uniformly mixing waste tiles, ceramic polishing slag, kaolin, medical stone and talcum powder to prepare a raw material, adding water with the mass of 0.3-0.45 time of that of the raw material into the raw material, adding the raw material into a ball mill, and carrying out ball milling to obtain slurry with the particle size of 100 meshes and 120 meshes; (3) making blank by slip casting, drying by blowing at 40-55 ℃ for 12-16h, and then demoulding after the porcelain blank is dried; (4) trimming the dried blank to manufacture a radiating fin (103), and washing with water; firing the lamp blank for the first time at the firing temperature of 600-650 ℃ for 6-8h to obtain a porcelain blank for later use;
b. the glaze material is prepared by the following steps: (1) taking feldspar, alkali stone, calcite, black Ru stone, agate stone and polishing porcelain powder as required raw materials; (2) uniformly mixing the ingredients, and adding the mixture into a ball mill for ball milling for 22-26 h; (3) sieving the ball-milled slurry by using a screen with the fineness of 200 meshes to obtain glaze slurry for later use;
c. the glazing steps are as follows: b, carrying out glaze dipping on the porcelain blank obtained in the step a for the first time, and preserving heat at 45-65 ℃; brushing glaze on the glaze surface, blowing and drying for 1-2h at room temperature, soaking the glaze surface for the second time, and preserving heat at 65-85 ℃;
d. the firing steps are as follows: c, firing the glazed porcelain body of the lamp in a kiln, and cooling to obtain a finished product;
e. coating a reflecting layer (104), selecting a ceramic reflecting material, coating the ceramic reflecting material on the inner wall of the supporting shell (101), and forming a ceramic reflecting layer (104) with the thickness of 1-2mm on the inner part of the supporting shell (101) for later use;
f. the shell is assembled in a butt joint mode, an adhesive layer is coated on the outer wall of the supporting shell (101), the heat conducting material is bonded on the outer wall of the supporting shell (101) to form a heat conducting medium layer (105) with the thickness of 2-3mm, and the heat radiating insulating shell (102) which is prepared in advance is bonded and sleeved on the outer portion of the heat conducting medium layer (105);
and step three, fixing the combined type shell (1) on a prefabricated connecting lamp holder, and screwing the light-transmitting cover (2) below the combined type shell to complete the manufacture.
2. The method of claim 1, wherein the optical coating (202) is a nano-mirror coating.
3. The method of claim 1, wherein the optical coating layer (202) is made of silica.
4. The method of claim 1, wherein the method comprises the following steps: the radiating fins (103) are wave-shaped or vertical stripe-shaped.
5. The method of claim 1, wherein the method comprises the following steps: in the raw materials of the glaze, the grain diameter of polished porcelain powder is 10-50 μm.
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Effective date of registration: 20211231 Address after: 461670 Shen Long Zhen Qing Gang Jian Cun, Yuzhou City, Xuchang City, Henan Province Patentee after: Yuzhou Tianpeng porcelain Co.,Ltd. Address before: 461670 Yuzhou e-commerce Incubation Park, East Industrial Park, yingchuanban industrial agglomeration zone, Yuzhou City, Xuchang City, Henan Province Patentee before: HENAN JUNYI LIGHTING Co.,Ltd. |