EP4208422A1 - Flachglasscheibe - Google Patents
FlachglasscheibeInfo
- Publication number
- EP4208422A1 EP4208422A1 EP21770234.9A EP21770234A EP4208422A1 EP 4208422 A1 EP4208422 A1 EP 4208422A1 EP 21770234 A EP21770234 A EP 21770234A EP 4208422 A1 EP4208422 A1 EP 4208422A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- flat glass
- glass pane
- tensile stress
- depth
- pane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000005357 flat glass Substances 0.000 title claims abstract description 124
- 239000002344 surface layer Substances 0.000 claims abstract description 60
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims abstract description 35
- 229910052700 potassium Inorganic materials 0.000 claims abstract description 35
- 239000011591 potassium Substances 0.000 claims abstract description 35
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 34
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 34
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims abstract description 33
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 33
- 239000011734 sodium Substances 0.000 claims abstract description 33
- 239000010410 layer Substances 0.000 claims abstract description 31
- 239000000463 material Substances 0.000 claims abstract description 26
- 239000005368 silicate glass Substances 0.000 claims abstract description 9
- 239000011521 glass Substances 0.000 claims description 58
- 239000005354 aluminosilicate glass Substances 0.000 claims description 4
- 239000005388 borosilicate glass Substances 0.000 claims description 3
- 239000005361 soda-lime glass Substances 0.000 claims description 3
- 241000428199 Mustelinae Species 0.000 claims description 2
- 239000005329 float glass Substances 0.000 claims description 2
- 239000002585 base Substances 0.000 abstract description 5
- 239000003513 alkali Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 16
- 230000008569 process Effects 0.000 description 12
- 238000005342 ion exchange Methods 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 150000003839 salts Chemical class 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 238000010791 quenching Methods 0.000 description 4
- 230000000171 quenching effect Effects 0.000 description 4
- 238000005728 strengthening Methods 0.000 description 4
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 description 3
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 238000005496 tempering Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 229910052593 corundum Inorganic materials 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 229910001414 potassium ion Inorganic materials 0.000 description 2
- 239000005336 safety glass Substances 0.000 description 2
- 229910001415 sodium ion Inorganic materials 0.000 description 2
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 2
- 229910001845 yogo sapphire Inorganic materials 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000006107 alkali alkaline earth silicate glass Substances 0.000 description 1
- 229910000272 alkali metal oxide Inorganic materials 0.000 description 1
- 150000001447 alkali salts Chemical class 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000005345 chemically strengthened glass Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- FZFYOUJTOSBFPQ-UHFFFAOYSA-M dipotassium;hydroxide Chemical compound [OH-].[K+].[K+] FZFYOUJTOSBFPQ-UHFFFAOYSA-M 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000156 glass melt Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- FUJCRWPEOMXPAD-UHFFFAOYSA-N lithium oxide Chemical compound [Li+].[Li+].[O-2] FUJCRWPEOMXPAD-UHFFFAOYSA-N 0.000 description 1
- 229910001947 lithium oxide Inorganic materials 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- CHWRSCGUEQEHOH-UHFFFAOYSA-N potassium oxide Chemical compound [O-2].[K+].[K+] CHWRSCGUEQEHOH-UHFFFAOYSA-N 0.000 description 1
- 229910001950 potassium oxide Inorganic materials 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229910001948 sodium oxide Inorganic materials 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- C03C21/00—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B27/00—Tempering or quenching glass products
- C03B27/04—Tempering or quenching glass products using gas
- C03B27/0404—Nozzles, blow heads, blowing units or their arrangements, specially adapted for flat or bent glass sheets
-
- 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
- C03C21/00—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface
- C03C21/001—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in liquid phase, e.g. molten salts, solutions
- C03C21/002—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in liquid phase, e.g. molten salts, solutions to perform ion-exchange between alkali ions
-
- 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
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/083—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound
-
- 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
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/089—Glass compositions containing silica with 40% to 90% silica, by weight containing boron
- C03C3/091—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B27/00—Tempering or quenching glass products
- C03B27/04—Tempering or quenching glass products using gas
Definitions
- a flat glass pane which is characterized in that a. at least one surface layer is enriched in potassium and depleted in sodium and/or lithium, while an inner layer, in particular immediately adjacent to the surface layer, is not enriched in potassium and not depleted in sodium and/or lithium and that b.
- a flat glass pane blank is first produced in the known manner and heated to a primary temperature which is at most 50 Kelvin below and at most 30 Kelvin above the Littleton point of the glass material .
- the flat glass blank is preferably not suddenly quenched to room temperature, but to a higher temperature.
- the heated flat glass blank is preferably quenched to a quenching temperature which is at least 200 Kelvin and at most 550 Kelvin, in particular at least 200 Kelvin and at most 450 Kelvin, below the primary temperature.
- the flat glass pane according to the invention has compressive stress down to a compressive stress depth and from the compressive stress depth a tensile stress, the tensile stress increasing with increasing depth up to a maximum tensile stress arranged in the inner layer and/or the course of the tensile stress being dependent has no linear section in depth and/or wherein the course of the tensile stress as a function of depth does not have a section in which the tensile stress is constant.
- the flat glass pane according to the invention differs very significantly, for example, from flat glass panes that have been treated with a known chemical toughening process.
- a flat glass pane which has two surface layers, in particular parallel to one another, is particularly robust. It can advantageously be provided that each of the two surface layers is enriched in potassium and depleted in sodium and/or lithium, while an inner layer arranged between the surface layers is not enriched in potassium and not depleted in sodium and/or lithium, and that the flat glass pane on both sides has a compressive stress down to a compressive stress depth and from the compressive stress depth a tensile stress, wherein the tensile stress increases with increasing depth up to a tensile stress maximum arranged in the inner layer and/or wherein the progression of the tensile stress as a function of the depth does not have a linear section and/ or wherein the plot of tensile stress versus depth has no portion where the tensile stress is constant. This can be achieved in particular by treating both outer sides of the flat glass pane blank in the same way.
- the glass material from which the flat glass pane is made can also be an aluminosilicate glass.
- the glass material is not an aluminosilicate glass because such glass is too complex and, in particular, too expensive to produce.
- the glass material preferably has an aluminum oxide content of less than 5% (percent by mass) (Al2O3 ⁇ 5%), in particular less than 4.5% (percent by mass) (Al2O3 ⁇ 4.5%).
- the glass material can advantageously have a silicon dioxide content (SiO2) of more than 58% (mass percent) and less than 85% (mass percent), in particular more than 70% (mass percent) and less than 74% (mass percent).
- SiO2 silicon dioxide content
- a glass material that is an alkali-earth-alkaline silicate glass can advantageously have a silicon dioxide content of more than 70% (percent by mass) and less than 74% (percent by mass).
- the glass material has an alkali oxide content, in particular sodium oxide content (Na2O) and/or lithium oxide content (U2O), in the range from 5% (mass percent) to 20% (mass percent), in particular in the range from 10% (mass percent ) to 14.5% (mass percent) or in the range from 12% (mass percent) to 13.5% (mass percent).
- an alkali oxide content in particular sodium oxide content (Na2O) and/or lithium oxide content (U2O)
- Na2O sodium oxide content
- U2O lithium oxide content
- the glass material has a boron trioxide content (B2O3) of less than 15% (percent by mass), in particular of at most 5% (percent by mass).
- B2O3 boron trioxide content
- the flat glass pane according to the invention can be flat.
- flat glass can also be curved in one or two dimensions.
- a curved flat glass pane blank is first produced, which is then treated in the manner described above.
- the flat glass pane according to the invention can be designed or used as a window pane, for example.
- the lower weight with the same strength compared to a conventional window pane can be advantageously used, for example with regard to the dimensioning of the window fittings.
- the flat glass pane according to the invention can advantageously be designed as a greenhouse pane.
- the beams of the greenhouse that support the flat glass panes according to the invention can advantageously be made weaker and therefore cheaper because the flat glass panes according to the invention can be made thinner and therefore lighter than conventional flat glass panes of the same base material with the same strength.
- the light transmission range can be increased by using narrower carriers.
- FIG. 1 shows a schematic representation, which is not true to scale, of a first component of the stress curve 1 within a flat glass pane according to the invention, which has a thickness 6 .
- the first component of stress curve 1 is based on the fact that a flat glass pane blank was first produced and heated to a primary temperature that is no more than 50 Kelvin below and no more than 30 Kelvin above the Littleton point of the glass material and then quenched to a quenching temperature which is at least 200 Kelvin and at most 550 Kelvin, in particular at least 200 Kelvin and at most 450 Kelvin, below the primary temperature.
- the compressive stress 3 increases to the right, starting from the zero line drawn in dashed lines, while the tensile stress 4 increases to the left, starting from the zero line drawn in dashed lines.
- the flat glass pane 7 has one on each side towards the inside decreasing compressive stress 3, which transitions into a tensile stress 4 increasing up to the middle between the outer sides, the course of the tensile stress as a function of depth not having a linear section and depending on depth not having a section in which the tensile stress 4 is constant .
- the first component has a maximum 5 of tensile stress 4.
- the stress profile acting overall is determined jointly by the first component and the second component, so that the flat glass pane has compressive stress 3 on both sides down to a compressive stress depth 2 and tensile stress 4 from the compressive stress depth 2, with the tensile stress 4 increasing with depth up to a tensile stress maximum 5 arranged in the inner layer 11 and/or wherein the course of the tensile stress 4 as a function of the depth does not have a linear section and/or the course of the tensile stress 4 as a function of the depth does not have a section in which the tensile stress 4 is constant.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Surface Treatment Of Glass (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| LU102045A LU102045B1 (de) | 2020-09-03 | 2020-09-03 | Flachglasscheibe |
| PCT/EP2021/074284 WO2022049205A1 (de) | 2020-09-03 | 2021-09-02 | Flachglasscheibe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4208422A1 true EP4208422A1 (de) | 2023-07-12 |
Family
ID=73040199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21770234.9A Pending EP4208422A1 (de) | 2020-09-03 | 2021-09-02 | Flachglasscheibe |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20230312389A1 (zh) |
| EP (1) | EP4208422A1 (zh) |
| KR (1) | KR20230059812A (zh) |
| CN (1) | CN116348422A (zh) |
| LU (1) | LU102045B1 (zh) |
| TW (1) | TW202214538A (zh) |
| WO (1) | WO2022049205A1 (zh) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3433611A (en) * | 1965-09-09 | 1969-03-18 | Ppg Industries Inc | Strengthening glass by multiple alkali ion exchange |
| DD157966A3 (de) | 1977-08-08 | 1982-12-22 | Siegfried Schelinski | Verfahren und vorrichtungen zur verfestigung von glaserzeugnissen durch ionenaustauch |
| CN106316155A (zh) | 2013-07-19 | 2017-01-11 | 旭硝子株式会社 | 化学强化玻璃及其制造方法 |
| US10899654B2 (en) * | 2017-07-13 | 2021-01-26 | Corning Incorporated | Glass-based articles with improved stress profiles |
| TWI825112B (zh) * | 2018-07-02 | 2023-12-11 | 美商康寧公司 | 具有改善的應力分佈的玻璃基製品及其製造方法 |
| TW202043168A (zh) * | 2019-03-29 | 2020-12-01 | 美商康寧公司 | 抗刮玻璃及製作方法 |
-
2020
- 2020-09-03 LU LU102045A patent/LU102045B1/de active IP Right Grant
-
2021
- 2021-09-02 EP EP21770234.9A patent/EP4208422A1/de active Pending
- 2021-09-02 TW TW110132607A patent/TW202214538A/zh unknown
- 2021-09-02 WO PCT/EP2021/074284 patent/WO2022049205A1/de unknown
- 2021-09-02 CN CN202180070740.0A patent/CN116348422A/zh active Pending
- 2021-09-02 US US18/024,355 patent/US20230312389A1/en active Pending
- 2021-09-02 KR KR1020237010175A patent/KR20230059812A/ko unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022049205A1 (de) | 2022-03-10 |
| TW202214538A (zh) | 2022-04-16 |
| CN116348422A (zh) | 2023-06-27 |
| LU102045B1 (de) | 2022-03-03 |
| KR20230059812A (ko) | 2023-05-03 |
| US20230312389A1 (en) | 2023-10-05 |
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