CN105819672A - Production method of smooth-surface domestic glass ceramic - Google Patents

Production method of smooth-surface domestic glass ceramic Download PDF

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Publication number
CN105819672A
CN105819672A CN201610161114.3A CN201610161114A CN105819672A CN 105819672 A CN105819672 A CN 105819672A CN 201610161114 A CN201610161114 A CN 201610161114A CN 105819672 A CN105819672 A CN 105819672A
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CN
China
Prior art keywords
goods
flame polish
rotation dish
male model
shower nozzle
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Granted
Application number
CN201610161114.3A
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Chinese (zh)
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CN105819672B (en
Inventor
詹建怀
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GUANGDONG JIANCHENG TECH GLASS PRODUCTS CO LTD
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GUANGDONG JIANCHENG TECH GLASS PRODUCTS CO LTD
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Priority to CN201610161114.3A priority Critical patent/CN105819672B/en
Publication of CN105819672A publication Critical patent/CN105819672A/en
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B11/00—Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
    • C03B11/12—Cooling, heating, or insulating the plunger, the mould, or the glass-pressing machine; cooling or heating of the glass in the mould
    • C03B11/122—Heating
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B25/00—Annealing glass products
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B29/00—Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins
    • 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 discloses a production method of smooth-surface domestic glass ceramic. The production method is characterized by comprising the first step of semi-finished product production, the second step of product flame polishing treatment, the third step of product shaping and the fourth step of annealing treatment. According to the method, the produced domestic glass ceramic product has a smooth surface, tiny cracks in the surface of the product are basically eliminated, burrs and coarse surfaces at edges are eliminated, the edges are flat and smooth, the product is neat and free of deformation in appearance, and the quality of the product meets the GB/T30771 'domestic glass ceramic' standard requirement.

Description

Ganoid domestic glass ceramic production methods
Technical field
The present invention relates to glass ceramics field, a kind of ganoid domestic glass ceramic production methods.
Background technology
In GB/T30771 " domestic glass pottery " standard, glass ceramics is defined as " by crystallizing the class ceramic composite constituted mutually mutually with glass, typically by glass is carried out suitable heat treated so that producing enough crystallizations in vitreous body and obtaining mutually." it is " supplying glass and ceramic product used in everyday " to the definition that domestic glass is ceramic.
The outward appearance of domestic glass pottery, type, purposes are close with domestic ceramics, but material is different from domestic ceramics, and production technology is the most different.The production technology of domestic glass pottery is close with domestic glass but has difference, it is by the high melt to composite, by hot-forming (part type uses centrifugal drying to make type), carry out producing in heat treatment makes vitreous body enough crystallization phases to through moulded products, so that goods thermal shock resistance and intensity improve.Can there are some defects through the goods of thermoforming, expand with heat and contract with cold because goods can produce in thermoforming process, goods are prone to produce modification or irregular, and at the mouth of limit, the defect such as the most jagged exists, and product surface exists the fine crack that substantial amounts of interior eye be can't see.Using conventional cold grinding method, can eliminate some defects of product surface, but effect is not ideal enough, and cannot eliminate the fine crack of product surface, thus cause product surface smoothness poor, product surface compressive stress declines, and intensity and thermal shock resistance decline.
Partly, pointedly, accurately with controllable Temperature Treatment, replace traditional cold grinding method, eliminate product surface defect comprehensively and effectively, be the problem of industry technology tackling key problem.There is certain risk in this technological innovation, product can be caused all to scrap when technology is immature.On the one hand domestic glass ceramic production industry just carries out technology and Process Exploration at this, particularly can use on a production line, it is adaptable to industrialization, thus it is high to reach production efficiency, steady quality, economy and practical function.
Summary of the invention
For solving the problems referred to above, the invention provides a kind of ganoid domestic glass ceramic production methods.
The ganoid domestic glass ceramic production methods of the present invention, it is characterised in that comprise the following production steps that
(1) semifinished sheets produces
Use conventional production process, take glass ceramics raw material in 1,400 1420 DEG C of meltings, form glass paste, glass paste metering is put in the punching block being contained on forcing press, through extrusion forming, make the semifinished sheets of domestic glass pottery through molding；
(2) goods flame polish processes
Semifinished sheets is processed in flame polish indoor；Flame polish indoor are provided with rotation dish, graphite male model and 2 burning shower nozzles, and rotation dish is provided with torr mould, and wherein the fire jetting hole of No. 1 burning shower nozzle is located at periphery, and the fire jetting hole of No. 2 burning shower nozzles is located at centre, and graphite male model appearance is identical with the appearance of goods inner chamber；
Semifinished sheets is positioned in the torr mould on rotation dish；Starting turn disc and drive torr mould and goods to rotate, rotating speed is 50 60 turns per minute；Then rotation dish is first moved to No. 1 burning shower nozzle, the fire jetting hole of No. 1 burning shower nozzle lower end jets out flames, and the limit port part of the goods rotated is carried out flame polish, the burr at the mouth of goods limit and dietary fibres is melted, making at the mouth of goods limit smooth, the flame polish time is 23 seconds；Rotation dish again by goods from No. 1 burning moved below to No. 2 of shower nozzle burning shower nozzle below, the fire jetting hole of No. 2 burning shower nozzle lower ends jets out flames, the surface of internal cavity of goods is carried out flame polish, substantially eliminate the fine crack of product surface, and make goods surface of internal cavity smooth, the flame polish time is 2-3 second, completes flame polish processing procedure；
Above-mentioned flame temperature is 900 1000 DEG C；
(above-mentioned No. 1 burning shower nozzle is located at peripheral fire jetting hole, No. 2 burning shower nozzles are located at the fire jetting hole of centre, being that the true form according to goods carries out conventional adjustment setting, the Bian Kouchu of the fire jetting hole alignment goods of No. 1 burning shower nozzle, the fire jetting hole of No. 2 burning shower nozzles is then in alignment with the inner chamber of goods；The movement of above-mentioned rotation dish can use the rotation table device of routine to be controlled)
(3) goods shaping
After goods complete flame polish processing procedure, moved with rotation dish in 12 seconds, moved below to below graphite male model from No. 2 burning shower nozzles；Rotation dish and goods stop operating, graphite male model lowers into goods inner chamber, when the appearance of graphite male model is laminated with the appearance of goods inner chamber, graphite male model stops declining and go up after static 12 seconds in situ (this process is the type correction that the goods producing contractility deformation after flame polish are carried out by graphite male model, makes deformation or the elimination of irregular phenomenon that goods exist)；
(lifting of above-mentioned graphite male model can use the connecting rod lifting device of routine to be controlled)
(4) annealing
After goods are shaped, use conventional annealing processing mode, carry out making annealing treatment 1 1.5 hours in 550 570 DEG C in annealing furnace, make domestic glass ceramic product.
The method of the present invention, make the domestic glass surface of ceramic products made smooth, the fine crack of product surface substantially eliminates, burr and matsurface at the mouth of limit eliminate, and become flat smooth, product appearance reaches regular and indeformable, and product quality meets GB/T30771 " domestic glass pottery " standard-required.
Accompanying drawing explanation
Fig. 1 is the device that in step of the present invention (2), goods carry out flame polish process.
Labelling in figure: 1 semifinished sheets；2 rotation dishes；3 torr moulds；4 No. 1 burning shower nozzles；5 No. 2 burning shower nozzles；6 fire jetting holes；7 graphite male models.
Detailed description of the invention
Embodiment:
Ganoid domestic glass ceramic production methods, it is characterised in that comprise the following production steps that
(1) semifinished sheets produces
Use conventional production process, take glass ceramics raw material in 1400 DEG C of meltings, form glass paste, glass paste metering is put in the punching block being contained on forcing press, through extrusion forming, make the semifinished sheets of domestic glass pottery through molding；
(2) goods flame polish processes
Semifinished sheets is processed in flame polish indoor；Flame polish indoor are provided with rotation dish, graphite male model and 2 burning shower nozzles, and rotation dish is provided with torr mould, and wherein the fire jetting hole of No. 1 burning shower nozzle is located at periphery, and the fire jetting hole of No. 2 burning shower nozzles is located at centre, and graphite male model appearance is identical with the appearance of goods inner chamber；
Semifinished sheets is positioned in the torr mould on rotation dish；Starting turn disc and drive torr mould and goods to rotate, rotating speed is 55 turns per minute；Then rotation dish is first moved to No. 1 burning shower nozzle, the fire jetting hole of No. 1 burning shower nozzle lower end jets out flames, and the limit port part of the goods rotated is carried out flame polish, the burr at the mouth of goods limit and dietary fibres is melted, making at the mouth of goods limit smooth, the flame polish time is 2 seconds；Rotation dish again by goods from No. 1 burning moved below to No. 2 of shower nozzle burning shower nozzle below, the fire jetting hole of No. 2 burning shower nozzle lower ends jets out flames, the surface of internal cavity of goods is carried out flame polish, substantially eliminate the fine crack of product surface, and make goods surface of internal cavity smooth, the flame polish time is 2 seconds, completes flame polish processing procedure；
Above-mentioned flame temperature is 950 DEG C；
(3) goods shaping
After goods complete flame polish processing procedure, moved with rotation dish in 2 seconds, moved below to below graphite male model from No. 2 burning shower nozzles；Rotation dish and goods stop operating, and graphite male model lowers into goods inner chamber, and when the appearance of graphite male model is laminated with the appearance of goods inner chamber, graphite male model stops declining and ging up after static 1 second in situ；
(4) annealing
After goods are shaped, use conventional annealing processing mode, carry out making annealing treatment 1 hour in 560 DEG C in annealing furnace, make domestic glass ceramic product.
The domestic glass surface of ceramic products that embodiment is made is smooth, the fine crack of product surface substantially eliminates, and burr and matsurface at the mouth of limit eliminate, and become flat smooth, product appearance reaches regular and indeformable, and product quality meets GB/T30771 " domestic glass pottery " standard-required.
Comparative example 1:Unlike embodiment, the temperature of burning shower nozzle is reduced to 800 DEG C, and poor through the product surface smoothness of flame polish, the most smooth at the mouth of goods limit, product surface exists more fine crack.
Comparative example 2:Unlike embodiment, the temperature of burning shower nozzle is promoted to 1150 DEG C, gross distortion at the product deformation of flame polish, goods limit mouth.
Comparative example 3:Unlike embodiment, flame polish does not use No. 1 and No. 2 two combustor, carries out the flame polish of goods limit mouth and surface of internal cavity respectively, but changes into, only with a single combustor, disposably goods limit mouth and surface of internal cavity being carried out flame polish.The most smooth through goods limit mouth and the surface of internal cavity of disposable flame polish.
Comparative example 4:Unlike embodiment, the goods after flame polish are producing the contractility deformation at the mouth of limit after flame polish without the shaping of graphite male model, goods, are causing goods irregular.
Comparative example 5:Unlike embodiment, not using graphite male model, but use steel male model in goods shaping, after goods are shaped, goods inner chamber produces friction vestige, and goods surface of internal cavity is rough, and the compressive stress of product surface declines.
Comparative example 6:Unlike embodiment, after goods complete after the flame polish of No. 2 burning shower nozzles, the traveling time to graphite male model changes into 5 seconds, and products temperature fall is too big, and goods plasticity declines, and goods are scrapped at reforming process cracking.

Claims (1)

  1. The most ganoid domestic glass ceramic production methods, it is characterised in that comprise the following production steps that
    (1) semifinished sheets produces
    Use conventional production process, take glass ceramics raw material in 1,400 1420 DEG C of meltings, form glass paste, glass paste metering is put in the punching block being contained on forcing press, through extrusion forming, make the semifinished sheets of domestic glass pottery through molding；
    (2) goods flame polish processes
    Semifinished sheets is processed in flame polish indoor；Flame polish indoor are provided with rotation dish, graphite male model and 2 burning shower nozzles, and rotation dish is provided with torr mould, and wherein the fire jetting hole of No. 1 burning shower nozzle is located at periphery, and the fire jetting hole of No. 2 burning shower nozzles is located at centre, and graphite male model appearance is identical with the appearance of goods inner chamber；
    Semifinished sheets is positioned in the torr mould on rotation dish；Starting turn disc and drive torr mould and goods to rotate, rotating speed is 50 60 turns per minute；Then first being moved by rotation dish to No. 1 burning shower nozzle, the fire jetting hole of No. 1 burning shower nozzle lower end jets out flames, and the limit port part of the goods rotated is carried out flame polish, and the flame polish time is 23 seconds；Rotation dish again by goods from No. 1 burning moved below to No. 2 of shower nozzle burning shower nozzle below, No. 2 burning shower nozzle lower ends fire jetting hole jet out flames, the surface of internal cavity of goods is carried out flame polish, the flame polish time is 2-3 second, completes flame polish processing procedure；
    Above-mentioned flame temperature is 900 1000 DEG C；
    (3) goods shaping
    After goods complete flame polish processing procedure, moved with rotation dish in 12 seconds, moved below to below graphite male model from No. 2 burning shower nozzles；Rotation dish and goods stop operating, and graphite male model lowers into goods inner chamber, and when the appearance of graphite male model is laminated with the appearance of goods inner chamber, graphite male model stops declining and ging up after static 12 seconds in situ；
    (4) annealing
    After goods are shaped, use conventional annealing processing mode, carry out making annealing treatment 1 1.5 hours in 550 570 DEG C in annealing furnace, make domestic glass ceramic product.
CN201610161114.3A 2016-03-21 2016-03-21 The smooth domestic glass ceramic production methods in surface Active CN105819672B (en)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109336397A (en) * 2018-10-18 2019-02-15 福建省德化龙顺陶瓷有限公司 A kind of domestic glass ceramics and preparation method thereof that surface is smooth
CN114380487A (en) * 2021-12-30 2022-04-22 江苏铁锚玻璃股份有限公司 Glass edge polishing method and flame polishing device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1754846A (en) * 2004-09-29 2006-04-05 一品光学工业股份有限公司 Modelling optical element production method
CN101851066A (en) * 2010-06-13 2010-10-06 湖州岱兴电器制品有限公司 Pot-shaped glass-ceramic panel and manufacturing method thereof
CN103613269A (en) * 2013-04-22 2014-03-05 罗海涛 Manufacturing method for glass hand basin or glass foot basin
CN103803780A (en) * 2013-12-27 2014-05-21 施晓霞 Preparation method of crystal pot for cooking

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1754846A (en) * 2004-09-29 2006-04-05 一品光学工业股份有限公司 Modelling optical element production method
CN101851066A (en) * 2010-06-13 2010-10-06 湖州岱兴电器制品有限公司 Pot-shaped glass-ceramic panel and manufacturing method thereof
CN103613269A (en) * 2013-04-22 2014-03-05 罗海涛 Manufacturing method for glass hand basin or glass foot basin
CN103803780A (en) * 2013-12-27 2014-05-21 施晓霞 Preparation method of crystal pot for cooking

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109336397A (en) * 2018-10-18 2019-02-15 福建省德化龙顺陶瓷有限公司 A kind of domestic glass ceramics and preparation method thereof that surface is smooth
CN109336397B (en) * 2018-10-18 2021-08-10 福建省德化龙顺陶瓷有限公司 Daily glass ceramic with smooth surface and preparation method thereof
CN114380487A (en) * 2021-12-30 2022-04-22 江苏铁锚玻璃股份有限公司 Glass edge polishing method and flame polishing device

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Inventor after: Zhan Yichun

Inventor after: Cai Jianxi

Inventor after: Cai Yanying

Inventor after: He Fei

Inventor after: Zhang Cunhao

Inventor after: Zhan Jianhuai

Inventor after: Peng Cheng

Inventor after: Lin Weihua

Inventor before: Zhan Jianhuai

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