CN102603193B - Production method for grinding-free and polishing-free black transparent microcrystalline glass plate - Google Patents

Production method for grinding-free and polishing-free black transparent microcrystalline glass plate Download PDF

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Publication number
CN102603193B
CN102603193B CN2012100874459A CN201210087445A CN102603193B CN 102603193 B CN102603193 B CN 102603193B CN 2012100874459 A CN2012100874459 A CN 2012100874459A CN 201210087445 A CN201210087445 A CN 201210087445A CN 102603193 B CN102603193 B CN 102603193B
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spindle nose
roller
temperature
inner core
production
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CN102603193A (en
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赵天佑
周漫娟
庄伟兴
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GUANGDONG KEDI GLASS-CERAMIC INDUSTRIAL Co Ltd
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GUANGDONG KEDI GLASS-CERAMIC INDUSTRIAL Co Ltd
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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

Abstract

The invention relates to a production method for a Li2O-A2O3-SiO2-series grinding-free and polishing-free black transparent microcrystalline glass plate. Because modified component niobium oxide is added into a formula, the fusing temperature of the glass can be lowered by adding the niobium oxide. The modified component niobium oxide has good crystallization performance and also has the physical properties that the crystallization temperature is lowered, the coefficient of expansion is lowered, and the like. In the calendaring molding equipment, because the traditional solid molded roll is changed into a hollow roller structure and an inner core rod is arranged in the hollow roller structure, circulating cooling water is introduced into the hollow roller during production; the temperature of a molded roll body can be accurately controlled by controlling the water inlet temperature, the water outlet temperature and the flow speed, and in addition, the roller can be evenly cooled; the microcrystalline glass plate calendered and molded by the roller is flat, and the obtained microcrystalline glass plate has a smooth and flat surface so as to satisfy the user requirement, and does not deform at the high temperature for a long time; because grinding treatment and polishing treatment are omitted in the product production process, two working procedures of grinding and polishing in the product process are reduced; and therefore, the product quality is improved, the production efficiency is improved, the production cost is lowered, the production environment for workers is improved, and the clean production is realized.

Description

A kind of exempt from the mill exempt to throw the black transparent microcrystal glass plate production method
Technical field
The present invention relates to a kind of Li 2o-Al 2o 3-SiO 2system exempts from the production method that mill exempts to throw the black transparent microcrystal glass plate.
Background technology
The kind of devitrified glass is a lot, can be produced the glasswork of different purposes by different components proportioning and different process.2005, the applicant applied for a kind of Li 2o-Al 2o 3-SiO 2be that the composition of black transparent microcrystal glass be take and the production method Chinese invention patent (patent No. is 2005100344556) of goods, this patent comprises by black transparent microcrystal glass produces hot-plate, decocts the method for baking sheet, and the described technological process of production comprises: (1) batching; (2) mix; (3) found; (4) cooling; (5) calendering formation; (6) annealing; (7) crystallization is processed; (8) cut plate; (9) grinding and polishing; (10) deburring; (11) check; (12) stamp; (13) dry; (14) inspection after construction; (15) packing; (16) warehouse-in.This project obtains users' approval after going into operation, and obtains significant economic benefit.
But, because the formula in production technique and equipment component still have the imperfection part, the planeness of the microcrystal glass plate that it is prepared does not reach customer requirements, after cutting plate technique, must just reach specified requirement through its planeness after the processing of abrasive polishing process.Therefore, existing devitrified glass particularly the production of large plate devitrified glass to exist energy loss large, production efficiency is low, the shortcomings such as the product breakage rate is high, additional cost is high, because the grinding and polishing operation must rely on a large amount of manual operations, not only waste water, the resource such as electricity, and environmental pollution is large, the worker laboring environment is poor.
Summary of the invention
The object of the invention is to the improvement to the production technique of existing microcrystal glass plate, a kind of Li is provided 2o-Al 2o 3-SiO 2system exempts from the production method that mill exempts to throw the black transparent microcrystal glass plate.
The present invention, its technical process comprises: 1) batching: the weight percent of each component is: Li 2o:2.7 ~ 4.7%, RO:2 ~ 3%, Al 2o 3: 17 ~ 26%, SiO 2: 62 ~ 72%, NiO:0.05 ~ 0.1%, V 2o 5: 0.1 ~ 0.2%, Fe 2o 3: 0.05 ~ 0.1%, TiO 2: 2 ~ 2.5%, ZrO 2: 1.5 ~ 2.5%, P 2o 5: 1 ~ 2%, Nb 2o 5: 0.1 ~ 0.5%, wherein: Li 2o, RO, Al 2o 3and SiO 2form parent glass, RO can be calcium oxide, zinc oxide or magnesium oxide, NiO, V 2o 5and Fe 2o 3form tinting material, TiO 2, ZrO 2and P 2o 5form Nucleating Agent, Nb 2o 5for properties-correcting agent, 2) mix, 3) found, glass melting temperature is 1600 ℃, 4) cooling, 5), through the calender device calendering formation, temperature is 1400 ℃, 6) annealing, now the color of sheet glass is light coffee color, 7) crystallization is processed, and temperature is 850 ℃, and the time is 2 hours, and now the color of glass is black and is transparence, 8) cut plate, size on request cuts into plate, 9) deburring, 10) check, 11) stamp, 12) dry, 13) inspection after construction, 14) packing, 15) warehouse-in, described calender device comprises upper roller and lower roller, be equipped with left spindle nose and right spindle nose at the two ends of every roller, left spindle nose is connected with supporting base, right spindle nose is connected with motor with speed reduction unit successively, described roller and left spindle nose are tubular structure, the left part of right spindle nose is provided with axial vestibule, left spindle nose and right spindle nose respectively with the roller fixed seal connection, sheathed water jacketing on right spindle nose, on right spindle nose, be provided with radially prosopyle, prosopyle is communicated with the axial vestibule in water jacketing and right spindle nose, in every roller, be equipped with inner core rod, the right-hand member of inner core rod is erected at the port of the axial vestibule of right spindle nose, the left end of inner core rod is fixed on the left end in left spindle nose cylinder by supporting structure, right-hand member at inner core rod, be provided with the roller sluice, on supporting structure, be provided with limbers, the surface of described upper roller is through sandblasting, its roughness is 1.0 ~ 1.6, the surface working of described lower roller is spaced apart 5 ~ 10mm, and diameter is 0.6 ~ 1.2mm, the spherical crown cavity that the degree of depth is 0.1 ~ 0.5mm.
The present invention, the wall thickness of described roller (comprising upper roller and lower roller) is 40 ~ 50mm; Described inner core rod is the aluminum alloy solid structure, and its diameter is 70 ~ 80mm; The temperature setting of the recirculated water in described water jacketing is set to 38 ~ 41 ℃, and the leaving water temperature(LWT) of left spindle nose is controlled between 45 ~ 49 ℃.
The present invention has following features:
1, in formula, owing to adding modification component niobium oxides (Nb 2o 5), the melt temperature that can make glass that adds of niobium oxides reduces, and has good crystallization, and crystallization temperature is reduced, and the physicalies such as coefficient of expansion reduction, at Li 2o-Ai 2o 3-SiO 2in the system black transparent microcrystal glass, there are no niobium oxides, as the modification component, be applied in this system.In patent documentation, although quote niobium oxides or tantalum oxide for devitrified glass, introduce tantalum niobium tailings and make MgO-Ai 2o 3-CaO-SiO 2system is for devitrified glass making building materials micro-crystal board material or at Na 2o-SrO-BaO-SiO 2-B 2o 3add Nb in system 2o 5for energy-accumulating medium material or ZnO-Ai 2o 3-SiO 2system adds niobium oxides, and the modification component is manufactured reflector material, and described these and the present invention are essentially different;
2, in calendering formation equipment, make the hollow roll barrel structure into and inner core rod is set therein owing to having solid format roll now, import recirculated cooling water during production in hollow roller, control by inflow temperature, leaving water temperature(LWT) and flow velocity, can not only accurately be controlled to the temperature of forming roll roll body, and can make roller cooling evenly; Not only make the crystallizing glass sheet material of its calendering formation smooth, reach the effect of " without the wave trace ", and can not produce the roll banding phenomenon, roller is not yielding, stable and reliable product quality; In addition, due to the surface of upper roller, through sandblasting, its roughness can be 1.0-1.6; The surface working of lower roller is spaced apart 5-10mm, diameter is 0.6-1.2mm, the spherical crown cavity that the degree of depth is 0.1-0.5mm, making the crystallizing glass sheet material front of its calendering formation is matt effect, and the protruding grain that its back side produces, meet design requirement, crystallizing glass sheet material operation processing after annealing, crystallization process etc. again through calendering formation, the surfacing of gained crystallizing glass sheet material is smooth, and the product planeness can meet customer requirements, and life-time service is indeformable under high temperature (700 ℃) condition;
3, owing to not needing in process of producing product again through grinding, polished finish; production process has reduced grinding, polishing two procedures; both improved the quality of products (past is damaged because of grinding and polishing plate face protective layer), and enhanced productivity, reduce production costs; improve again workman's production environment; sewage, noise, dust greatly reduce, and accomplish cleaner production.
The accompanying drawing explanation
The structure principle chart of the calendering formation device that Fig. 1 is the embodiment of the present invention.
In figure, 10, upper roller 11, left spindle nose 12, right spindle nose 13, axially vestibule 14, prosopyle 15, inner core rod supporting structure 16, supporting base 17, water jacketing 18, speed reduction unit 19, motor 20, lower roller 30, inner core rod 31, roller sluice.
Embodiment
A kind of exempting from ground the production method of exempting to throw the black transparent microcrystal glass plate, and its technical process comprises: 1) batching: the weight percent of each component is: Li 2o:3.1%; CaO:1.0%; BaO:1.2%; Al 2o 3: 20.2%; SiO 2: 69.0%; NiO:0.07%; V 2o 5: 0.14%; Fe 2o 3: 0.09%; TiO 2: 2.0%; ZrO 2: 1.8%; P 2o 5: 1.2%; Nb 2o 5: 0.2%.2) mix; 3) found, glass melting temperature is 1600 ℃; 4) cooling; 5), through the calender device calendering formation, temperature is 1400 ℃; 6) annealing, now the color of sheet glass is light coffee color; 7) crystallization is processed, and temperature is 850 ℃, and the time is 2 hours, and now the color of glass is black and is transparence; 8) cut plate, size on request cuts into plate; 9) deburring; 10) check; 11) stamp; 12) dry; 13) inspection after construction; 14) packing; 15) warehouse-in.
The present embodiment, described calender device comprises upper roller 10 and lower roller 20, be equipped with left spindle nose 11 and right spindle nose 12 at the two ends of every roller, left spindle nose 11 is connected with supporting base 16, right spindle nose 12 is connected with motor 19 with speed reduction unit 18 successively, described roller (comprising upper roller 10 and lower roller 20) and left spindle nose 11 are tubular structure, the left part of right spindle nose 12 is provided with axial vestibule 13, left spindle nose 11 and right spindle nose 12 respectively with the roller fixed seal connection, sheathed water jacketing 17 on right spindle nose 12, on right spindle nose 12, be provided with radially prosopyle 14, the axial vestibule 13 that prosopyle 14 is communicated with in water jacketing 17 and right spindle nose 12, in every roller, be equipped with inner core rod 30, the right-hand member of inner core rod 30 is erected at the port of right spindle nose 12 axial vestibules 13, the left end of inner core rod 30 is fixed on the left end in 11 of left spindle noses by supporting structure 15, right-hand member at inner core rod 30, be provided with roller sluice 31, on supporting structure 15, be provided with limbers, the surface of described upper roller 10 is through sandblasting, its roughness is 1.0 ~ 1.6, the surface working of described lower roller 20 is spaced apart 5 ~ 10mm, and diameter is 0.6 ~ 1.2mm, the spherical crown cavity that the degree of depth is 0.1 ~ 0.5mm.The wall thickness of described roller is 40 ~ 50mm; Described inner core rod 30 is the aluminum alloy solid structure, and its diameter is 70 ~ 80mm; The temperature of the recirculated water in described water jacketing 17 is 38 ~ 41 ℃, and the leaving water temperature(LWT) of left spindle nose 11 is 45 ~ 49 ℃.
By the present embodiment, the prepared mill of exempting from is exempted to throw the black transparent microcrystal glass plate and is applicable to electromagnetic oven plate, kitchen stove gas plate, liquefied gas, coal gas and heats and burn plate, Yale cooker plate, bake and fry plate etc.

Claims (1)

1. exempt from the production method that mill exempts to throw the black transparent microcrystal glass plate for one kind, its technical process comprises: 1) batching: the weight percent of each component is: Li 2o:3.1%, CaO:1.0%, BaO:1.2%, Al 2o 3: 20.2%, SiO 2: 69.0%, NiO:0.07%, V 2o 5: 0.14%, Fe 2o 3: 0.09%, TiO 2: 2.0%, ZrO 2: 1.8%, P 2o 5: 1.2%, Nb 2o 5: 0.2%, 2) mix, 3) found, glass melting temperature is 1600 ℃, 4) cooling, 5), through the calender device calendering formation, temperature is 1400 ℃, 6) annealing, now the color of sheet glass is light coffee color, 7) crystallization is processed, and temperature is 850 ℃, and the time is 2 hours, and now the color of glass is black and is transparence, 8) cut plate, size on request cuts into plate, 9) deburring, 10) check, 11) stamp, 12) dry, 13) inspection after construction, 14) packing, 15) warehouse-in, described calender device comprises upper roller (10) and lower roller (20), be equipped with left spindle nose (11) and right spindle nose (12) at the two ends of every roller, left spindle nose (11) is connected with supporting base (16), right spindle nose (12) is connected with motor (19) with speed reduction unit (18) successively, described roller and left spindle nose (11) are tubular structure, the left part of right spindle nose (12) is provided with axial vestibule (13), left spindle nose (11) and right spindle nose (12) respectively with the roller fixed seal connection, at the upper sheathed water jacketing (17) of right spindle nose (12), on right spindle nose (12), be provided with radially prosopyle (14), prosopyle (14) is communicated with the axial vestibule (13) in water jacketing (17) and right spindle nose (12), in every roller, be equipped with inner core rod (30), the right-hand member of inner core rod (30) is erected at the axially port of vestibule (13) of right spindle nose (12), the left end of inner core rod (30) is fixed on the left end in left spindle nose (11) cylinder by supporting structure (15), right-hand member in inner core rod (30), be provided with roller sluice (31), on supporting structure (15), be provided with limbers, the surface of described upper roller (10) is through sandblasting, its roughness is 1.0 ~ 1.6, the surface working of described lower roller (20) is spaced apart 5 ~ 10mm, and diameter is 0.6 ~ 1.2mm, the spherical crown cavity that the degree of depth is 0.1 ~ 0.5mm, and the wall thickness of described roller (10,20) is 40 ~ 50mm, described inner core rod (30) is the aluminum alloy solid structure, and its diameter is 70 ~ 80mm, the temperature of the recirculated water in described water jacketing (17) is 38 ~ 41 ℃, and the leaving water temperature(LWT) of left spindle nose (11) is 45 ~ 49 ℃.
CN2012100874459A 2012-03-28 2012-03-28 Production method for grinding-free and polishing-free black transparent microcrystalline glass plate Active CN102603193B (en)

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WO2015013092A1 (en) 2013-07-25 2015-01-29 Corning Incorporated Methods and apparatus for forming a glass ribbon
CN104310786B (en) * 2014-10-09 2016-10-05 华南理工大学 A kind of have ultra-wideband near-infrared luminous microcrystal glass material and preparation method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB293013A (en) * 1927-06-30 1929-05-27 Saint Gobain Improvements relating to the cooling of flattening rollers
US2712923A (en) * 1951-06-13 1955-07-12 Pilkington Brothers Ltd Fluid cooled roll
CN1237546A (en) * 1998-03-03 1999-12-08 株式会社小原 Glass-ceramic substrate for magnetic information recording medium
CN1305796C (en) * 2005-05-09 2007-03-21 广东科迪微晶玻璃实业有限公司 Method for producing black transparent microcrystal glass and its products
CN101085698A (en) * 2006-06-06 2007-12-12 株式会社小原 Crystallized glass and method for producing crystallized glass

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1536832A (en) * 1924-05-13 1925-05-05 Pittsburgh Plate Glass Co Fluid-cooled roll
BE510179A (en) * 1951-06-13
CN2484322Y (en) * 2001-06-28 2002-04-03 淄博矿山建材设备总厂 Tube-through type water-cooling calender roller-way
CN102219354B (en) * 2010-04-16 2013-08-21 信义光伏产业(安徽)控股有限公司 Glass rolling device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB293013A (en) * 1927-06-30 1929-05-27 Saint Gobain Improvements relating to the cooling of flattening rollers
US2712923A (en) * 1951-06-13 1955-07-12 Pilkington Brothers Ltd Fluid cooled roll
CN1237546A (en) * 1998-03-03 1999-12-08 株式会社小原 Glass-ceramic substrate for magnetic information recording medium
CN1305796C (en) * 2005-05-09 2007-03-21 广东科迪微晶玻璃实业有限公司 Method for producing black transparent microcrystal glass and its products
CN101085698A (en) * 2006-06-06 2007-12-12 株式会社小原 Crystallized glass and method for producing crystallized glass

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Denomination of invention: Production method for grinding-free and polishing-free black transparent microcrystalline glass plate

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