EA200601026A1 - METHOD OF DETECTING DEFECTS IN SHEET GLASS - Google Patents
METHOD OF DETECTING DEFECTS IN SHEET GLASSInfo
- Publication number
- EA200601026A1 EA200601026A1 EA200601026A EA200601026A EA200601026A1 EA 200601026 A1 EA200601026 A1 EA 200601026A1 EA 200601026 A EA200601026 A EA 200601026A EA 200601026 A EA200601026 A EA 200601026A EA 200601026 A1 EA200601026 A1 EA 200601026A1
- Authority
- EA
- Eurasian Patent Office
- Prior art keywords
- glass
- defects
- microstresses
- laser beam
- sheet glass
- Prior art date
Links
Abstract
Изобретение относится к способам обнаружения и оценки дефектов в листовом стекле и может быть использовано для определения однородности и контроля качества стекла, применяемого в различных областях народного хозяйства. Сущность изобретения состоит в том, что дефекты в стекле, а также локальные микронапряжения в массе стекла определяют за счет проявления выпуклых и вогнутых пятен и линейных полос в плоскости торцевой поверхности сквозного реза стеклянных пластин лазерным лучом, как результат взаимодействия равномерных растягивающих напряжений в процессе термораскалывания стекла и микронапряжений химических неоднородностей или включений. Предложенное техническое решение позволяет оперативно и эффективно обнаружить и оценить дефекты внутри стекла в пределах всего светового диаметра лазерного луча за одно измерение.The invention relates to methods for detecting and evaluating defects in sheet glass and can be used to determine uniformity and quality control of glass used in various fields of the national economy. The essence of the invention is that the defects in the glass, as well as local microstresses in the glass mass are determined by the manifestation of convex and concave spots and linear bands in the plane of the end surface of the through-cutting glass plates with a laser beam as a result of the interaction of uniform tensile stresses during thermal splitting of the glass and microstresses of chemical inhomogeneities or inclusions. The proposed technical solution allows you to quickly and efficiently detect and evaluate defects inside the glass within the entire light diameter of the laser beam in one measurement.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EA200601026A EA200601026A1 (en) | 2006-05-19 | 2006-05-19 | METHOD OF DETECTING DEFECTS IN SHEET GLASS |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EA200601026A EA200601026A1 (en) | 2006-05-19 | 2006-05-19 | METHOD OF DETECTING DEFECTS IN SHEET GLASS |
Publications (2)
Publication Number | Publication Date |
---|---|
EA008773B1 EA008773B1 (en) | 2007-08-31 |
EA200601026A1 true EA200601026A1 (en) | 2007-08-31 |
Family
ID=41203611
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EA200601026A EA200601026A1 (en) | 2006-05-19 | 2006-05-19 | METHOD OF DETECTING DEFECTS IN SHEET GLASS |
Country Status (1)
Country | Link |
---|---|
EA (1) | EA200601026A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111712473B (en) * | 2018-03-07 | 2022-02-25 | 佳殿玻璃有限公司 | Method and system for detecting inclusions in float glass based on wavelength analysis |
US10481097B1 (en) | 2018-10-01 | 2019-11-19 | Guardian Glass, LLC | Method and system for detecting inclusions in float glass based on spectral reflectance analysis |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CS241114B2 (en) * | 1981-07-29 | 1986-03-13 | Feldmuehle Ag | Method of materials' transparent bands quality testing and device for its performance |
SU1231813A1 (en) * | 1984-10-02 | 1991-04-23 | Организация П/Я Р-6007 | Installation for cutting sheet stock ,particularly, ,particularly, glass plates |
JPH01169343A (en) * | 1987-12-25 | 1989-07-04 | Nippon Sheet Glass Co Ltd | Cut defect detector for glass plate |
JP3013903B2 (en) * | 1991-01-31 | 2000-02-28 | セントラル硝子株式会社 | Defect detection device for sheet glass |
-
2006
- 2006-05-19 EA EA200601026A patent/EA200601026A1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EA008773B1 (en) | 2007-08-31 |
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MM4A | Lapse of a eurasian patent due to non-payment of renewal fees within the time limit in the following designated state(s) |
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MM4A | Lapse of a eurasian patent due to non-payment of renewal fees within the time limit in the following designated state(s) |
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MM4A | Lapse of a eurasian patent due to non-payment of renewal fees within the time limit in the following designated state(s) |
Designated state(s): RU |