CN113135664A - Preparation method of multi-rolled ultrathin ivory white jade - Google Patents
Preparation method of multi-rolled ultrathin ivory white jade Download PDFInfo
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- CN113135664A CN113135664A CN202110454262.5A CN202110454262A CN113135664A CN 113135664 A CN113135664 A CN 113135664A CN 202110454262 A CN202110454262 A CN 202110454262A CN 113135664 A CN113135664 A CN 113135664A
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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
- C03C10/00—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition
- C03C10/0036—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition containing SiO2, Al2O3 and a divalent metal oxide as main constituents
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B13/00—Rolling molten glass, i.e. where the molten glass is shaped by rolling
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B25/00—Annealing glass products
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B32/00—Thermal after-treatment of glass products not provided for in groups C03B19/00, C03B25/00 - C03B31/00 or C03B37/00, e.g. crystallisation, eliminating gas inclusions or other impurities; Hot-pressing vitrified, non-porous, shaped glass products
- C03B32/02—Thermal crystallisation, e.g. for crystallising glass bodies into glass-ceramic articles
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
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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
- C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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Abstract
The invention discloses a preparation method of multi-roll-pressed ultrathin ivory white jade, which comprises the following steps of firstly selecting raw materials, then mixing the raw materials weighed according to a proportion to obtain a mixture, melting the mixture to obtain glass liquid, carrying out multi-roll calendering molding on the glass liquid to obtain a glass belt, carrying out crystallization annealing on the glass belt to obtain a crystallized plate, and sequentially carrying out cutting, thickness fixing and polishing quality inspection on the crystallized plate by utilizing automatic equipment.
Description
Technical Field
The invention relates to the field of preparation of ultrathin ivory white jade, in particular to a preparation method of multi-roll ultrathin ivory white jade.
Background
At present, the microcrystalline glass is a novel material developed in recent years, has the characteristics of glass and ceramics, can be applied to the fields of electronics and electricians, biomedicine, chemical corrosion prevention, mines, architectural decoration and the like according to the characteristics of the microcrystalline glass prepared by different formulas and processes, but the microcrystalline plate used for the architectural decoration industry in the market at present generally has the defects of one aspect or more aspects of extensibility, thickness, weather resistance, wear resistance, toughness, water absorption, fading, corrosion resistance, compressive strength, hardness and the like, so that a preparation method of the multi-roll-pressed ultrathin ivory white jade is provided.
Disclosure of Invention
The invention aims to provide a preparation method of multi-rolled ultrathin ivory white jade, which solves the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a preparation method of multi-roll ultrathin ivory white jade comprises the following steps:
s1: selecting raw materials: preparing required quartz sand, limestone, fluorite, low-iron feldspar, lepidolite, soda ash, sodium nitrate, barite, phosphorus ash, a clarifying agent and antimony oxide, wherein the corresponding mass percentages are 35-40% of the quartz sand, 10-15% of the limestone, 12-15% of the fluorite, 10-15% of the low-iron feldspar, 1-5% of the lepidolite, 10-15% of the soda ash, 2-5% of the sodium nitrate, 1-5% of the barite, 1-5% of the phosphorus ash, 0.2-0.9% of the clarifying agent and 0.3-0.6% of the antimony oxide;
s2: mixing raw materials: weighing the raw materials of S1 in proportion, sending the raw materials to a mixer for mixing, adding 2-5% of water according to the total weight of the raw materials, mixing for 5-10min by the mixer, and sending the mixed mixture to a feeding bin of a natural gas melting furnace by the mixer through an automatic feeder;
s3, melting of the mixture: the natural gas melting furnace in the S2 is divided into a main melting tank, a throat, an ascending channel and a material channel, the melting temperature of the mixture in the main melting tank is controlled to 1350-1480 ℃, the melting time is set to 7-9h, the clarification time of the mixture in the main melting tank is set to 7-9h, the homogenization time of the mixture in the main melting tank is set to 7-9h to obtain molten glass, the molten glass enters the material channel through the throat and the ascending channel, and the molten glass enters a multi-roll calender production line after being cooled by the material channel;
s4, calendering and forming: the multi-roll calender assembly line in the S3 carries out calendering molding on the glass liquid, the calender carries out calendering molding by adopting two or more groups of press rolls, the glass liquid firstly passes through a first group of press rolls to obtain a glass belt with the thickness of 18mm, passes through a second group of press rolls to obtain a glass belt with the thickness of 9mm, and finally passes through a third group of press rolls to obtain the glass belt with the thickness of 5mm after calendering.
S5, crystallization annealing: annealing the rolled glass belt by a crystallization annealing kiln in S4, setting the internal temperature of the crystallization annealing kiln to 600-720 ℃, then cooling the internal temperature of the crystallization annealing kiln to 560-600 ℃ at the speed of 3-5 ℃/min, heating the internal temperature of the crystallization annealing kiln to 630-680 ℃ at the speed of 3 ℃/min for 20-40 minutes, and carrying out heat preservation and nucleation at the temperature of 630-680 ℃ for 30-60 minutes;
s6: raising the temperature of the crystallization annealing kiln in S5 to 800-850 ℃ after 40-70min, carrying out heat preservation crystallization at 800-850 ℃ for 50-80min, and then cooling to 80 ℃ after 120-180min, and taking out of the kiln to obtain a crystallized plate;
s7: utilizing automatic equipment to sequentially cut, fix thickness and polish the crystallized board in S6 to obtain the multi-roll ultrathin ivory white jade, wherein the mass percentages of the components in the multi-roll ultrathin ivory white jade are as follows: 3-5% of Al2O3, 60-65% of SiO2, 8-10% of CaO, 3-5% of BaO, 8-10% of Na2O, 0.8-1% of K2O, 6-8% of CaF2, 0.1-0.3% of Li2O, 0.2-0.4% of Sb2O3, 1-2% of P2O5 and 0.1-0.3% of MgO, and finally warehousing qualified products
Further, in the step S4, the rotating speed of the first group of the press rolls is 1mm/min, the distance is 18mm, the rotating speed of the second group of the press rolls is 2mm/min, the distance is 9mm, the rotating speed of the third group of the press rolls is 3mm/min, and the distance is 5 mm.
Further, in S4, the upper end and the lower end of the calender production line are respectively provided with a first group of compression rollers, a second group of compression rollers and a third group of compression rollers, and the diameter sizes of the first group of compression rollers, the second group of compression rollers and the third group of compression rollers are 300 mm.
Further, in S4, the calender line is formed by calendering two or more than two multi-roll calenders, and the multi-roll calenders can adjust the spacing and the rotation speed according to the thickness and the width of the plate.
The invention optimizes the production process, is environment-friendly and energy-saving, greatly improves the production efficiency, saves the production cost, and obtains the ultrathin jade with the thickness of 5mm, high hardness, high bending strength, high compressive strength, good toughness, strong corrosion resistance, no fading, good chemical stability and good thermal stability.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a schematic view of a press roll of the present invention.
As noted in connection with fig. 1: a first set of press rolls 1, a second set of press rolls 2, a third set of press rolls 3.
Detailed Description
The invention will be further described with reference to the accompanying drawings in which:
with reference to figure 1 of the drawings,
example one
The embodiment provides a preparation method of multi-rolled ultrathin ivory white jade, which comprises the following steps:
s1: selecting raw materials: preparing required quartz sand, limestone, fluorite, low-iron feldspar, lepidolite, soda ash, sodium nitrate, barite, phosphorus ash, a clarifying agent and antimony oxide, wherein the corresponding mass percentages are that the quartz sand is 40%, the limestone is 10%, the fluorite is 12%, the low-iron feldspar is 10%, the lepidolite is 5%, the soda ash is 10%, the sodium nitrate is 2%, the barite is 5%, the phosphorus ash is 5%, the clarifying agent is 0.7% and the antimony oxide is 0.3%;
s2: mixing raw materials: weighing the raw materials in the S1 in proportion, then sending the raw materials to a mixer for mixing, adding 2-5% of water into the mixer according to the total weight of the raw materials, after mixing for 5-10min by the mixer, sending the mixed mixture to a feeding bin of a natural gas melting furnace by the mixer through an automatic feeding machine, additionally arranging an infrared level gauge on the automatic feeding machine, and controlling the automatic feeding machine by the infrared level gauge for feeding;
s3: melting the mixture: the natural gas melting furnace in the S2 is divided into a main melting tank, a throat, an uptake and a material channel, the melting temperature of the mixture in the main melting tank is controlled at 1420 ℃, the melting time is set to be 7-9h, the clarification time of the mixture in the main melting tank is set to be 7-9h, the homogenization time of the mixture in the main melting tank is set to be 7-9h, the clarification temperature and the homogenization temperature of the main melting tank are both set to be 1350 plus materials, glass liquid is obtained, the glass liquid enters the material channel through the throat and the uptake, the temperature of the glass liquid is reduced to 1280 ℃ through the material channel, and the glass liquid enters a calender production line;
s4: and (3) calendering and forming: the multi-roll calender assembly line in the S3 carries out calendering molding on the molten glass, the calender carries out calendering molding by adopting two or more groups of press rolls, the molding temperature of the calender is set to 1180 ℃, the molten glass is firstly processed by a first group of press rolls to obtain a glass belt with the thickness of 18mm, is processed by a second group of press rolls to obtain a glass belt with the thickness of 9mm, and is finally processed by a third group of press rolls to obtain a glass belt with the thickness of 5mm after calendering;
s5: and (3) crystallization annealing: annealing the glass belt by a crystallization annealing kiln in S4, setting the internal temperature of the crystallization annealing kiln to 600-720 ℃, then cooling the internal temperature of the crystallization annealing kiln to 560-600 ℃ at the speed of 3-5 ℃/min, heating the internal temperature of the crystallization annealing kiln to 630-680 ℃ at the speed of 3 ℃/min for 20-40 minutes, and carrying out heat preservation and nucleation at the temperature of 630-680 ℃ for 30-60 minutes;
s6: the crystallization annealing kiln in the S5 is heated to 800-850 ℃ after 40-70min, and is subjected to heat preservation and crystallization at 800-850 ℃ for 50-80min, and then is cooled to 80 ℃ after 120-180min, and is taken out of the kiln, so that the crystallization plate is obtained:
s7: and (3) utilizing automatic equipment to sequentially cut, fix thickness and polish the crystallized board in S6 to obtain the ultrathin ivory white jade, wherein the mass percentages of the components in the ultrathin ivory white jade are as follows: 3.7% of Al2O3, 63.85% of SiO2, 8.83% of CaO, 3.6% of BaO, 8.94% of Na2O, 0.9% of K2O, 7.87% of CaF2, 0.22% of Li2O, 0.4% of Sb2O3, 1.34% of P2O5 and 0.28% of MgO, and finally warehousing the qualified products.
Example two
The embodiment provides a preparation method of multi-rolled ultrathin ivory white jade, which comprises the following steps:
s1: selecting raw materials: preparing required quartz sand, limestone, fluorite, low-iron feldspar, lepidolite, soda ash, sodium nitrate, barite, phosphorus ash, a clarifying agent and antimony oxide, wherein the corresponding mass percentages are 38% of the quartz sand, 10% of the limestone, 12% of the fluorite, 12% of the low-iron feldspar, 5% of the lepidolite, 10% of the soda ash, 3% of the sodium nitrate, 5% of the barite, 5% of the phosphorus ash, 0.7% of the clarifying agent and 0.3% of the antimony oxide;
s2: mixing raw materials: weighing the raw materials in the S1 in proportion, and then sending the raw materials to a mixer for mixing, adding 10kg of water into the mixer according to the total weight of the raw materials, mixing for 5min by using the mixer, and sending the mixed mixture to a feeding bin of a natural gas melting furnace by using an automatic feeding machine by using the mixer;
s3: melting the mixture: the natural gas melting furnace in the S2 is divided into a main melting tank, a throat, an uptake and a material channel, the melting temperature of the mixture in the main melting tank is controlled at 1450 ℃, the melting time is set to be 7-9h, the clarification time of the mixture in the main melting tank is set to be 7-9h, the homogenization time of the mixture in the main melting tank is set to be 7-9h, the clarification temperature and the homogenization temperature of the main melting tank are set to be 1350-;
s4: and (3) calendering and forming: the multi-roll calender assembly line in the S3 carries out calendering molding on the glass liquid, the calender carries out calendering molding by adopting three groups of press rolls, the molding temperature of the calender is set to 1200 ℃, the glass liquid firstly passes through a first group of press rolls to obtain a glass belt with the thickness of 18mm, passes through a second group of press rolls to obtain a glass belt with the thickness of 9mm, and finally passes through a third group of press rolls to obtain a glass belt with the thickness of 5mm after calendering;
s5: and (3) crystallization annealing: annealing the glass belt by a crystallization annealing kiln in S4, setting the internal temperature of the crystallization annealing kiln to 600-720 ℃, then cooling the internal temperature of the crystallization annealing kiln to 560-600 ℃ at the speed of 3-5 ℃/min, heating the internal temperature of the crystallization annealing kiln to 630-680 ℃ at the speed of 3 ℃/min for 20-40 minutes, and carrying out heat preservation and nucleation at the temperature of 630-680 ℃ for 30-60 minutes;
s6: the crystallization annealing kiln in the S5 is heated to 800-850 ℃ after 40-70min, and is subjected to heat preservation and crystallization at 800-850 ℃ for 50-80min, and then is cooled to 80 ℃ after 120-180min, and is taken out of the kiln, so that the crystallization plate is obtained:
s7: and (3) utilizing automatic equipment to sequentially cut, fix thickness and polish the crystallized board in S6 to obtain the ultrathin ivory white jade, wherein the mass percentages of the components in the ultrathin ivory white jade are as follows: 4.13% of Al2O3, 63.43% of SiO2, 8.85% of CaO, 3.61% of BaO, 8.83% of Na2O, 1% of K2O, 7.9% of CaF2, 0.23% of Li2O, 0.4% of Sb2O3, 1.34% of P2O5 and 0.28% of MgO, and finally warehousing the qualified product.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. A preparation method of multi-rolled ultrathin ivory white jade is characterized by comprising the following steps:
s1: selecting raw materials: preparing required quartz sand, limestone, fluorite, low-iron feldspar, lepidolite, soda ash, sodium nitrate, barite, phosphorus ash, a clarifying agent and antimony oxide, wherein the corresponding mass percentages are 35-40% of the quartz sand, 10-15% of the limestone, 12-15% of the fluorite, 10-15% of the low-iron feldspar, 1-5% of the lepidolite, 10-15% of the soda ash, 2-5% of the sodium nitrate, 1-5% of the barite, 1-5% of the phosphorus ash, 0.2-0.9% of the clarifying agent and 0.3-0.6% of the antimony oxide;
s2: mixing raw materials: weighing the raw materials of S1 in proportion, sending the raw materials to a mixer for mixing, adding 2-5% of water according to the total weight of the raw materials, mixing for 5-10min by the mixer, and sending the mixed mixture to a feeding bin of a natural gas melting furnace by the mixer through an automatic feeder;
s3, melting of the mixture: the natural gas melting furnace in the S2 is divided into a main melting tank, a throat, an ascending channel and a material channel, the melting temperature of the mixture in the main melting tank is controlled to 1350-1480 ℃, the melting time is set to 7-9h, the clarification time of the mixture in the main melting tank is set to 7-9h, the homogenization time of the mixture in the main melting tank is set to 7-9h to obtain molten glass, the molten glass enters the material channel through the throat and the ascending channel, and the molten glass enters a multi-roll calender production line after being cooled by the material channel;
s4, calendering and forming: the multi-roll calender assembly line in the S3 carries out calendering molding on the molten glass, the calender carries out calendering molding by adopting two or more groups of press rolls, the molding temperature of the calender is set to 1150-1250 ℃, the molten glass is firstly processed by a first group of press rolls to obtain a glass belt with the thickness of 18mm, is processed by a second group of press rolls to obtain a glass belt with the thickness of 9mm, and is finally processed by a third group of press rolls to obtain the glass belt with the thickness of 5mm after calendering.
S5, crystallization annealing: annealing the rolled glass belt by a crystallization annealing kiln in S4, setting the internal temperature of the crystallization annealing kiln to 600-720 ℃, then cooling the internal temperature of the crystallization annealing kiln to 560-600 ℃ at the speed of 3-5 ℃/min, heating the internal temperature of the crystallization annealing kiln to 630-680 ℃ at the speed of 3 ℃/min for 20-40 minutes, and carrying out heat preservation and nucleation at the temperature of 630-680 ℃ for 30-60 minutes;
s6: raising the temperature of the crystallization annealing kiln in S5 to 800-850 ℃ after 40-70min, carrying out heat preservation crystallization at 800-850 ℃ for 50-80min, and then cooling to 80 ℃ after 120-180min, and taking out of the kiln to obtain a crystallized plate;
s7: utilizing automatic equipment to sequentially cut, fix thickness and polish the crystallized board in S6 to obtain the multi-roll ultrathin ivory white jade, wherein the mass percentages of the components in the multi-roll ultrathin ivory white jade are as follows: 3-5% of Al2O3, 60-65% of SiO2, 8-10% of CaO, 3-5% of BaO, 8-10% of Na2O, 0.8-1% of K2O, 6-8% of CaF2, 0.1-0.3% of Li2O, 0.2-0.4% of Sb2O3, 1-2% of P2O5 and 0.1-0.3% of MgO, and finally warehousing qualified products.
2. The method for preparing a multi-rolled ultrathin ivory white jade as claimed in claim 1, wherein the method comprises the following steps: in the S4, the rotating speed of the first group of pressing rollers is 1mm/min, the distance is 18mm, the rotating speed of the second group of pressing rollers is 2mm/min, the distance is 9mm, the rotating speed of the third group of pressing rollers is 3mm/min, and the distance is 5 mm.
3. The method for preparing a multi-rolled ultrathin ivory white jade as claimed in claim 1, wherein the method comprises the following steps: in S4, a first group of pressing rollers, a second group of pressing rollers and a third group of pressing rollers are arranged at the upper end and the lower end of the calender production line respectively, and the diameter sizes of the first group of pressing rollers, the second group of pressing rollers and the third group of pressing rollers are 300 mm.
4. The method for preparing a multi-rolled ultrathin ivory white jade as claimed in claim 1, wherein the method comprises the following steps: and in the S4, the calender production line adopts two or more than two multi-roll calenders for calendering and molding, and the multi-roll calenders can adjust the spacing and the rotating speed according to the thickness and the width of the plate.
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| CN202110454262.5A CN113135664A (en) | 2021-04-26 | 2021-04-26 | Preparation method of multi-rolled ultrathin ivory white jade |
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