CN113461311A - Method for eliminating glass stripe defect - Google Patents
Method for eliminating glass stripe defect Download PDFInfo
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- CN113461311A CN113461311A CN202110739343.XA CN202110739343A CN113461311A CN 113461311 A CN113461311 A CN 113461311A CN 202110739343 A CN202110739343 A CN 202110739343A CN 113461311 A CN113461311 A CN 113461311A
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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
- C03B5/18—Stirring devices; Homogenisation
- C03B5/187—Stirring devices; Homogenisation with moving elements
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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
- C03B5/18—Stirring devices; Homogenisation
-
- 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
- C03B5/235—Heating the glass
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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 method realizes the full stirring of the molten glass by adjusting the temperature of the molten glass and the height of a stirring rod for many times, and effectively improves the viscosity uniformity of the stirred molten glass, so that the method can effectively eliminate the stripe defects in the glass manufacturing process.
Description
Technical Field
The disclosure relates to the technical field of glass manufacturing, in particular to a method for eliminating glass stripes in a glass manufacturing process.
Background
The stripe is an important index for evaluating the liquid crystal glass, the number of the stripe directly reflects whether the glass production process is stable and reliable, and when the glass with the stripe defect is manufactured into a panel, the panel can have the stripe after being lightened, so that the display effect of the panel can be seriously influenced.
The streak is a through type defect, and once the streak occurs, a streak defect exists at the same position on each piece of glass produced subsequently, and therefore, it is necessary to eliminate the streak defect immediately after the streak occurs.
Disclosure of Invention
It is an object of the present disclosure to provide a method of eliminating glass cord defects.
In order to achieve the above object, the present disclosure provides a method for eliminating glass streak defects for a molten glass stirring apparatus having a stirring rod with an initial height H0, the molten glass stirring apparatus containing molten glass with an initial temperature T0, the method comprising:
s01, heating the molten glass to obtain molten glass with a first temperature T1;
s02, raising the height of the stirring rod to a first height H1, and keeping the first height H1 for continuous stirring;
s03, acquiring a first quality parameter corresponding to the molten glass in the stirring process;
s04, judging whether the first quality parameter meets a preset standard, if so, executing operation S05, otherwise, repeating operation S01-S03 until the first quality parameter meets the preset standard;
and S05, producing glass based on the molten glass.
Optionally, in operation S01, when the glass liquid is subjected to the temperature raising treatment, the temperature raising rate is 2 to 3 ℃/h, and T1-T0 is not higher than 0 ℃ and not higher than 10 ℃.
Optionally, after performing operation S01, the method further includes:
acquiring a second quality parameter corresponding to the molten glass with the temperature of the first temperature T1, determining whether the second quality parameter meets the preset standard, and if the second quality parameter meets the preset standard, performing operation S05, otherwise, performing operation S02.
Optionally, the raising the height of the stir bar to a first height H1 in operation S02 includes:
based on the current height of the stirring rod, the height of the stirring rod is increased to a first height H1, wherein H1-H0 is more than or equal to 0mm and less than or equal to 20 mm.
Optionally, the raising the height of the stir bar to a first height H1 in operation S02 includes:
s021, based on the current height of the stirring rod, raising the height of the stirring rod to a second height H2, wherein H2-H0 are more than or equal to 0mm and less than or equal to 20 mm;
s022, based on the second height H2, reducing the height of the stirring rod to a third height H3, wherein H0-H3 are more than or equal to 0mm and less than or equal to 10 mm;
the above operations S021 to S022 are repeated a predetermined number of times, and then the height of the stirring rod is raised to a first height H1, wherein H1-H0 are 0mm or more and 20mm or less, based on a third height H3 obtained after the last execution of the operation S022.
Optionally, after operation S021 is executed each time, based on the adjusted height, the molten glass is continuously stirred for 100-120 min, a third quality parameter corresponding to the molten glass is obtained, whether the third quality parameter meets the preset standard is judged, operation S05 is executed when the third quality parameter meets the preset standard, and otherwise, operation S022 is executed.
Alternatively, in the process of repeating the operations S021 to S022, the value of the second height H2 obtained in operation S201 becomes larger as the number of repetitions increases.
Optionally, in operation S03, the obtaining the quality parameter corresponding to the molten glass includes:
s031, obtaining the glass liquid stirred in operation S02, and preparing a glass plate based on the glass liquid;
s032, performing stripe detection on the glass plate to obtain a stripe detection result;
and S033, determining a quality parameter of the glass plate based on the streak detection result, as a quality parameter corresponding to the molten glass.
Optionally, in operation S04, when the quality parameter meets the preset criterion, the method further includes the following operations:
s041, reducing the temperature of the molten glass to an initial temperature T0;
s042, reducing the height of the stirring rod to an initial height H0;
and then performs operation S05.
Optionally, in operation S041, when the temperature of the molten glass is decreased to the initial temperature T0, the rate of temperature decrease is 1-2 ℃/day;
when the height of the stirring rod is reduced to the initial height H0, the height reduction rate is 2-3 mm/day.
Through the technical scheme, the temperature of the glass liquid and the height of the stirring rod are adjusted for multiple times, the glass liquid is fully stirred, the viscosity uniformity of the stirred glass liquid is effectively improved, and therefore the method can effectively eliminate the stripe defect in the glass manufacturing process.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
FIG. 1 is a flow chart of a method of eliminating glass cord defects in an embodiment of the present disclosure;
FIG. 2 is a schematic illustration of a starting glass sheet prepared using a starting molten glass in an embodiment of the disclosure;
FIG. 3 is a schematic illustration of a glass sheet after removal of cord defects in an embodiment of the present disclosure.
Detailed Description
The following detailed description of specific embodiments of the present disclosure is made in conjunction with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
Fig. 1 schematically illustrates a method for eliminating glass cord defects according to the present disclosure, and as shown in fig. 1, the present disclosure provides a method for eliminating glass cord defects for a molten glass stirring apparatus having a stirring rod with an initial height H0, the molten glass stirring apparatus containing molten glass with an initial temperature T0, the method comprising: s01, heating the molten glass to obtain molten glass with a first temperature T1; s02, raising the height of the stirring rod to a first height H1, and keeping the first height H1 for continuous stirring; s03, acquiring a first quality parameter corresponding to the molten glass in the stirring process; s04, judging whether the first quality parameter meets a preset standard, if so, executing operation S05, otherwise, repeating operation S01-S03 until the first quality parameter meets the preset standard; and S05, producing glass based on the molten glass.
This is disclosed through the temperature of a lot of adjustment glass liquid and the height of stirring rod, has realized the intensive mixing to glass liquid, and this viscosity homogeneity that can effectively promote the stirring back glass liquid to can effectively eliminate the stripe defect that exists in the glass manufacturing process.
The glass liquid is subjected to heating treatment, so that the temperature distribution of the glass liquid is uniform, the viscosity of the glass liquid can be reduced to a certain degree, and the glass liquid is more easily mixed uniformly under the stirring condition; the height of the stirring rod is changed, and the glass liquid is stirred, so that the glass liquid can be uniformly mixed, and the phenomenon of layering of the glass liquid due to nonuniform viscosity is avoided; the 'multiple adjustment' can effectively reduce or avoid the influence of the temperature fluctuation of the molten glass or the height change of the stirring rod on the viscosity uniformity of the molten glass.
According to the disclosure, the temperature-raising rate and the temperature-raising degree may be varied within a certain range when the molten glass is subjected to the temperature-raising treatment, for example, in operation S01, the temperature-raising rate may be 2 to 3 ℃/h, and T1-T0 is 0 ℃ or more and 10 ℃ or less when the molten glass is subjected to the temperature-raising treatment.
According to the present disclosure, after performing operation S01, the method may further include: acquiring a second quality parameter corresponding to the molten glass with the temperature of the first temperature T1, determining whether the second quality parameter meets the preset standard, and if the second quality parameter meets the preset standard, performing operation S05, otherwise, performing operation S02.
As an alternative embodiment, according to the present disclosure, the raising the height of the stirring rod to the first height H1 in operation S02 may include: based on the current height of the stirring rod, the height of the stirring rod is increased to a first height H1, wherein H1-H0 is more than or equal to 0mm and less than or equal to 20 mm.
As an alternative embodiment, according to the present disclosure, the raising the height of the stirring rod to the first height H1 in operation S02 may include: s021, based on the current height of the stirring rod, raising the height of the stirring rod to a second height H2, wherein H2-H0 are more than or equal to 0mm and less than or equal to 20 mm; s022, based on the second height H2, reducing the height of the stirring rod to a third height H3, wherein H0-H3 are more than or equal to 0mm and less than or equal to 10 mm; the above operations S021 to S022 are repeated a predetermined number of times, and then the height of the stirring rod is raised to a first height H1, wherein H1-H0 are 0mm or more and 20mm or less, based on a third height H3 obtained after the last execution of the operation S022.
In the present disclosure, specifically, with respect to operation S021, when the operation S021 is first performed, the current height of the stirring rod may refer to an initial height H0 of the stirring rod, and when the operation S021 is repeatedly performed 2 or more times, the current height of the stirring rod may refer to a height of the stirring rod after the operation S022 was last performed. When the operations S021 to S022 are repeatedly executed, the predetermined number of times may be changed within a certain range, for example, the predetermined number of times may be 1, 2, 3, or 5, and the specific value of the predetermined number of times may be determined according to the accuracy requirement when the height of the stirring rod is adjusted, for example, when the accuracy requirement of the height adjustment of the stirring rod is higher, the amplitude of the height adjustment of the stirring rod is smaller each time, at this time, a larger number of predetermined times may be set to meet the accuracy requirement of the height adjustment of the stirring rod, and conversely, a smaller number of predetermined times may be set.
According to the present disclosure, the method may further include: and after operation S021 is executed each time, continuously stirring the molten glass for 100-120 min based on the adjusted height, obtaining a third quality parameter corresponding to the molten glass, judging whether the third quality parameter meets the preset standard, executing operation S05 when the third quality parameter meets the preset standard, and otherwise, executing operation S022.
Alternatively, in the process of repeating the operations S021 to S022, the value of the second height H2 obtained in operation S201 may become larger as the number of repetitions increases.
For example, in operation S02, when the height of the stirring rod is increased to the first height H1, the height of the stirring rod may be first increased to H0+5mm based on the initial height H0 of the stirring rod; after 1-5 min, reducing the height of the stirring rod from H0+5mm to H0-5 mm; after 1-5 min, raising the height of the stirring rod from H0-5mm to H0+10 mm; after 1-5 min, reducing the height of the stirring rod from H0+10mm to H0-5 mm; after 1-5 min, raising the height of the stirring rod from H0-5mm to H0+15 mm; after 1-5 min, reducing the height of the stirring rod from H0+15mm to H0-5 mm; after 1-5 min, the height of the stirring rod is increased from H0-5mm to H0+20 mm.
According to the disclosure, in operation S03, the obtaining the quality parameter corresponding to the molten glass may include: s031, obtaining the glass liquid stirred in operation S02, and preparing a glass plate based on the glass liquid; s032, performing stripe detection on the glass plate to obtain a stripe detection result; and S033, determining a quality parameter of the glass plate based on the streak detection result, as a quality parameter corresponding to the molten glass.
In the present disclosure, specifically, in the case of detecting the streak on the glass plate, for example, a method such as a polarization microscope petrography method, an ultraviolet detection method, an electron beam probe analysis method, or a direct observation method can be used.
For the fringe detection result, different preset standards may be preset for different fringe numbers and/or distribution situations, for example, the fringe detection result may be divided into 1.0 level, 2.0 level, 2.5 level, 3.0 level, 3.5 level and 4.0 level in advance for different fringe numbers and/or distribution situations, and when the fringe detection result meets 1.0 level to 3.5 levels, it is determined that the fringe detection result meets the preset standards.
According to the present disclosure, in operation S04, when the quality parameter meets the preset standard, the method may further include the following operations: s041, reducing the temperature of the molten glass to an initial temperature T0; s042, reducing the height of the stirring rod to an initial height H0; and then performs operation S05.
Optionally, in operation S041, when the temperature of the molten glass is decreased to the initial temperature T0, the rate of temperature decrease is 1-2 ℃/day; when the height of the stirring rod is reduced to the initial height H0, the height reduction rate is 2-3 mm/day.
In the disclosure, specifically, after the quality parameter corresponding to the molten glass meets the preset standard, the temperature of the molten glass or the height of the stirring rod is slowly restored to the initial temperature or the initial height, respectively, so that the method disclosed in the disclosure can be used again to eliminate the streak defect when the streak defect appears next time.
The present disclosure is further illustrated by the following examples, but is not to be construed as being limited thereby.
The raw materials, reagents, instruments and equipment mentioned in the examples of the present disclosure can be purchased without specific reference. In the disclosed embodiment, the initial temperature T0 of the initial glass melt is 1300-1350 ℃, the initial height H0 of the stirring rod is +30mm, and the initial glass plate prepared by using the initial glass melt is shown in fig. 2, and as can be seen from fig. 2, a large number of streak defects exist on the initial glass plate.
Example 1
This example is presented to illustrate the method of eliminating glass cord defects of the present disclosure.
(1) Raising the temperature of the initial molten glass by 8 ℃ (T1 ═ T0+8 ℃) in a molten glass stirring barrel, wherein the temperature raising rate is 2 ℃/h;
(2) after the temperature rise in operation (1) was completed, the height of the stirring rod in the stirring barrel was raised by 5mm (H2 ═ H0+5 mm); after 1-5 min, reducing the height of the stirring rod by 10mm (H3-H2-10 mm-H0-5 mm); after 1-5 min, the height of the stirring rod is increased by 15mm (H4-H3 +15 mm-H0 +10 mm);
(3) after the height adjustment of the stirring rod in operation (2) is completed, the temperature of the molten glass is raised by 2 ℃ (T2 ═ T1+2 ℃ ═ T0+10 ℃) in a molten glass stirring barrel, and the temperature raising rate is 2 ℃/h;
(4) after the temperature rise in operation (3) is completed, the height of the stirring rod in the stirring barrel is reduced by 15mm (H5-H4-15 mm-H0-5 mm); after 1-5 min, the height of the stirring rod is increased by 20mm (H6-H5 +20 mm-H0 +15 mm); after 1-5 min, reducing the height of the stirring rod by 20mm (H7-H6-20 mm-H0-5 mm); after 1-5 min, raising the height of the stirring rod by 25mm (H1-H7 +25 mm-H0 +20 mm);
(5) after the adjustment of the height of the stirring rod in operation (4) was completed, stirring was continued while maintaining the height H1, and a glass plate was prepared.
The glass sheet produced in this example is shown in FIG. 3, and as can be seen from FIG. 3, the glass sheet has almost no streak defects.
Example 2
This example is presented to illustrate the method of eliminating glass cord defects of the present disclosure.
(1) Raising the temperature of the initial molten glass by 8 ℃ (T1 ═ T0+8 ℃) in a molten glass stirring barrel, wherein the temperature raising rate is 2 ℃/h;
(2) after the temperature rise in operation (1) was completed, the height of the stirring rod in the stirring barrel was raised by 10mm (H2 ═ H0+10 mm);
(3) after the height adjustment of the stirring rod in operation (2) is completed, the temperature of the molten glass is raised by 2 ℃ (T2 ═ T1+2 ℃ ═ T0+10 ℃) in a molten glass stirring barrel, and the temperature raising rate is 2 ℃/h;
(4) after the temperature rise in operation (3) was completed, the height of the stirring rod was raised by 10mm (H1 ═ H2+10mm ═ H0+20 mm);
(5) after the adjustment of the height of the stirring rod in operation (4) was completed, stirring was continued while maintaining the height H1, and a glass plate was prepared.
Example 3
This example is presented to illustrate the method of eliminating glass cord defects of the present disclosure.
(1) Raising the temperature of the initial molten glass by 10 ℃ (T1 ═ T0+10 ℃) in a molten glass stirring barrel, wherein the temperature raising rate is 2 ℃/h;
(2) after the temperature rise in operation (1) was completed, the height of the stirring rod in the stirring barrel was raised by 5mm (H2 ═ H0+5 mm); after 1-5 min, reducing the height of the stirring rod by 10mm (H3-H2-10 mm-H0-5 mm); after 1-5 min, the height of the stirring rod is increased by 15mm (H4-H3 +15 mm-H0 +10 mm); after 1-5 min, reducing the height of the stirring rod in the stirring barrel by 15mm (H5-H4-15 mm-H0-5 mm); after 1-5 min, the height of the stirring rod is increased by 20mm (H6-H5 +20 mm-H0 +15 mm); after 1-5 min, reducing the height of the stirring rod by 20mm (H7-H6-20 mm-H0-5 mm); after 1-5 min, raising the height of the stirring rod by 25mm (H1-H7 +25 mm-H0 +20 mm);
(3) after the adjustment of the height of the stirring rod in operation (2) was completed, stirring was continued while maintaining the height H1, and a glass plate was prepared.
Example 4
This example is presented to illustrate the method of eliminating glass cord defects of the present disclosure.
(1) Raising the temperature of the initial molten glass by 10 ℃ (T1 ═ T0+10 ℃) in a molten glass stirring barrel, wherein the temperature raising rate is 2 ℃/h;
(2) after the temperature rise in operation (1) was completed, the height of the stirring rod in the stirring barrel was raised by 20mm (H1 ═ H0+20 mm);
(3) after the adjustment of the height of the stirring rod in operation (2) was completed, stirring was continued while maintaining the height H1, and a glass plate was prepared.
Comparative example 1
The elimination treatment of the glass streak defects was carried out in the same manner as in example 1, except that: the temperature raising treatment operation in operations (1) and (3) was not performed, only the height of the stirring rod was adjusted, and then a glass plate was prepared.
Comparative example 2
The elimination treatment of the glass streak defects was carried out in the same manner as in example 1, except that: the stirring rod height adjusting operation in operations (2) and (4) was not performed, and only the glass liquid was subjected to the temperature raising treatment, and then a glass plate was prepared.
Test example
The initial glass plate shown in fig. 2, the glass plates prepared in examples 1 to 4 and comparative examples 1 to 2 were subjected to streak detection using a xenon lamp apparatus, and the detection method was as follows:
(1) according to the using method of the xenon lamp device, the glass plate to be detected is placed into a clamping groove of the xenon lamp device, so that the surface B of the glass plate faces to the curtain, the upper end of the glass plate is arranged at the upper part, and the near end of the glass plate is arranged at the left part;
(2) turning off the daylight lamp, and dividing the glass into a near end, a middle end and a far end according to a scale on the rotating frame;
(3) the inspector faces the screen, the visual distance is less than 500mm, the stripes are inspected from 0 degrees (the stripes are inspected comprehensively from the near end, the middle end, the far end, the upper end, the middle end and the lower end in sequence), if the stripes cannot be inspected, the stripes are slightly rotated to 15 degrees, 30 degrees, 45 degrees and 60 degrees in sequence, the sample support is slowly rotated until the stripes on the imaging screen disappear, the angle numerical value of the dial is read, and the stripe grade is judged according to the table 1.
The grade of the striae of each glass plate is shown in table 2.
TABLE 1
Wherein "—" indicates that the streak is not visible, and "√" indicates that the streak is visible.
TABLE 2
As can be seen from Table 1, the method disclosed by the invention can effectively eliminate the glass stripe defect in the glass plate preparation process, and prepare a good-quality glass plate.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.
Claims (10)
1. A method of eliminating cord defects in glass for a molten glass stirring apparatus having a stirring rod with an initial height of H0, the molten glass stirring apparatus containing molten glass having an initial temperature of T0, the method comprising:
s01, heating the molten glass to obtain molten glass with a first temperature T1;
s02, raising the height of the stirring rod to a first height H1, and keeping the first height H1 for continuous stirring;
s03, acquiring a first quality parameter corresponding to the molten glass in the stirring process;
s04, judging whether the first quality parameter meets a preset standard, if so, executing operation S05, otherwise, repeating operation S01-S03 until the first quality parameter meets the preset standard;
and S05, producing glass based on the molten glass.
2. The method according to claim 1, wherein in operation S01, the temperature increase rate is 2-3 ℃/h, and T1-T0 is not less than 0 ℃ and not more than 10 ℃ when the molten glass is subjected to the temperature increase treatment.
3. The method of claim 2, wherein after performing operation S01, the method further comprises:
acquiring a second quality parameter corresponding to the molten glass with the temperature of the first temperature T1, determining whether the second quality parameter meets the preset standard, and if the second quality parameter meets the preset standard, performing operation S05, otherwise, performing operation S02.
4. The method of claim 1, wherein the raising the height of the stir bar to a first height H1 in operation S02 comprises:
based on the current height of the stirring rod, the height of the stirring rod is increased to a first height H1, wherein H1-H0 is more than or equal to 0mm and less than or equal to 20 mm.
5. The method of claim 1, wherein the raising the height of the stir bar to a first height H1 in operation S02 comprises:
s021, based on the current height of the stirring rod, raising the height of the stirring rod to a second height H2, wherein H2-H0 are more than or equal to 0mm and less than or equal to 20 mm;
s022, based on the second height H2, reducing the height of the stirring rod to a third height H3, wherein H0-H3 are more than or equal to 0mm and less than or equal to 10 mm;
the above operations S021 to S022 are repeated a predetermined number of times, and then the height of the stirring rod is raised to a first height H1, wherein H1-H0 are 0mm or more and 20mm or less, based on a third height H3 obtained after the last execution of the operation S022.
6. The method of claim 5, further comprising:
and after operation S021 is executed each time, continuously stirring the molten glass for 100-120 min based on the adjusted height, obtaining a third quality parameter corresponding to the molten glass, judging whether the third quality parameter meets the preset standard, executing operation S05 when the third quality parameter meets the preset standard, and otherwise, executing operation S022.
7. The method according to claim 5, wherein in the process of repeating the operations S021 to S022, the value of the second height H2 obtained in the operation S201 becomes larger as the number of repetitions increases.
8. The method according to any one of claims 1 to 7, wherein the obtaining quality parameters corresponding to the molten glass in operation S03 includes:
s031, obtaining the glass liquid stirred in operation S02, and preparing a glass plate based on the glass liquid;
s032, performing stripe detection on the glass plate to obtain a stripe detection result;
and S033, determining a quality parameter of the glass plate based on the streak detection result, as a quality parameter corresponding to the molten glass.
9. The method according to any one of claims 1 to 7, wherein in operation S04, when the quality parameter meets the preset standard, the method further comprises the following operations:
s041, reducing the temperature of the molten glass to an initial temperature T0;
s042, reducing the height of the stirring rod to an initial height H0;
and then performs operation S05.
10. The method according to claim 9, wherein in operation S041, when the temperature of the molten glass is decreased to the initial temperature T0, the rate of temperature decrease is 1-2 ℃/day;
when the height of the stirring rod is reduced to the initial height H0, the height reduction rate is 2-3 mm/day.
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