JP6591894B2 - 積層強化ガラス基板の切断方法 - Google Patents
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- 239000000758 substrate Substances 0.000 title claims description 90
- 238000000034 method Methods 0.000 title claims description 33
- 238000005520 cutting process Methods 0.000 title claims description 28
- 239000011521 glass Substances 0.000 claims description 166
- 239000010410 layer Substances 0.000 claims description 65
- 238000000926 separation method Methods 0.000 claims description 55
- 238000005253 cladding Methods 0.000 claims description 46
- 239000012792 core layer Substances 0.000 claims description 46
- 238000010438 heat treatment Methods 0.000 claims description 18
- 238000001816 cooling Methods 0.000 claims description 14
- 230000007423 decrease Effects 0.000 claims description 6
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- 239000000203 mixture Substances 0.000 description 53
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- 239000006060 molten glass Substances 0.000 description 16
- 239000005340 laminated glass Substances 0.000 description 12
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
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- 239000011324 bead Substances 0.000 description 2
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- 229910003460 diamond Inorganic materials 0.000 description 2
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Classifications
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B33/00—Severing cooled glass
- C03B33/07—Cutting armoured, multi-layered, coated or laminated, glass products
- C03B33/076—Laminated glass comprising interlayers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B33/00—Severing cooled glass
- C03B33/07—Cutting armoured, multi-layered, coated or laminated, glass products
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B33/00—Severing cooled glass
- C03B33/09—Severing cooled glass by thermal shock
- C03B33/091—Severing cooled glass by thermal shock using at least one focussed radiation beam, e.g. laser beam
- C03B33/093—Severing cooled glass by thermal shock using at least one focussed radiation beam, e.g. laser beam using two or more focussed radiation beams
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B33/00—Severing cooled glass
- C03B33/09—Severing cooled glass by thermal shock
- C03B33/095—Tubes, rods or hollow products
- C03B33/0955—Tubes, rods or hollow products using a focussed radiation beam, e.g. laser
-
- 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
- C03C3/085—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal
- C03C3/087—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal containing calcium oxide, e.g. common sheet or container glass
-
- 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
-
- 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
- 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
- C03C3/093—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium containing zinc or zirconium
-
- 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
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T225/00—Severing by tearing or breaking
- Y10T225/10—Methods
- Y10T225/12—With preliminary weakening
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Toxicology (AREA)
- Health & Medical Sciences (AREA)
- Thermal Sciences (AREA)
- Optics & Photonics (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Description
ガラスコア層102内の中央張力(CT)は式(2):
以下は、図4Aに示すような温度プロファイル(並びに結果として生じる中央張力及び圧縮応力のプロファイル)を達成するために、局部温度がCT及びCSに与える影響を示す、コア−クラッドガラス組成物の3つのペアである。
第1の非限定的な実施例では、ガラスコア層は10.4×106psi(約71700MPa)の弾性係数、0.22のポアソン比、98×10−7/℃の平均CTE及びT*=581℃を有するガラスCであった。ガラスクラッド層は10.3×106psi(約71000MPa)の弾性係数、0.23のポアソン比、36.1×10−7/℃の平均CTE及びT*=671℃を有するガラスDであった。ガラスコア層の厚さは0.526mmであり、ガラスクラッド層の厚さは0.0478mmであった。以下の表1は、この第1のコア−クラッドのペアに関して、CS及びCTに対する温度Tの変化の影響を示す。
第2の非限定的な実施例では、ガラスコア層は10.4×106psi(約71700MPa)の弾性係数、0.21のポアソン比、83.6×10−7/℃の平均CTE及びT*=564℃を有するガラスEであった。ガラスクラッド層は10.0×106psi(約69000MPa)の弾性係数、0.23のポアソン比、28.0×10−7/℃の平均CTE及びT*=463℃を有するガラスFであった。ガラスコア層の厚さは0.38mmであり、ガラスクラッド層の厚さは0.076mmであった。以下の表2は、このコア−クラッドのペアの第2の例に関して、CS及びCTに対する温度Tの変化の影響を示す。
第3の非限定的な実施例では、ガラスコア層は10.4×106psi(約71700MPa)の弾性係数、0.21のポアソン比、81.4×10−7/℃の平均CTE及びT*=604℃を有するガラスGであった。ガラスクラッド層は10.9×106psi(約75200MPa)の弾性係数、0.23のポアソン比、43.5×10−7/℃の平均CTE及びT*=635℃を有するガラスHであった。ガラスコア層の厚さは0.38mmであり、ガラスクラッド層の厚さは0.076mmであった。以下の表3は、このコア−クラッドのペアの第3の例に関して、CS及びCTに対する温度Tの変化の影響を示す。
本明細書に記載の実施形態による積層強化ガラス基板の切断の2つの非限定的な例を以下に提供する。
第1の非限定的な切断例では、積層強化ガラス基板シートは、リドロー法によって形成されたガラスAのガラスコア層及びガラスEの2層のガラスクラッド層を有していた。ガラスAは10.6×106psi(約73100MPa)の弾性係数、0.21のポアソン比、91.1×10−7/℃の平均CTE及びT*=556℃を有していた。ガラスEは10.4×106psi(約71700MPa)の弾性係数、0.206のポアソン比、80.9×10−7/℃の平均CTE及びT*=565℃を有していた。ガラスコア層の厚さは0.38mmであり、ガラスクラッド層の厚さは0.076mmであった。以下の表4は、この実施例に関して、CS及びCTに対する温度Tの変化の影響を示す。
第2の非限定的な切断例では、積層強化ガラス基材シートは、ガラスIのガラスコア層及びガラスJの2層のガラスクラッド層を有していた。ガラスIは10.9×106psi(約75200MPa)の弾性係数、0.24のポアソン比、42.0×10−7/℃の平均CTE及びT*=632℃を有していた。ガラスJは10.0×106psi(約68900MPa)の弾性係数、0.206のポアソン比、35.0×10−7/℃の平均CTE及びT*=629℃を有していた。ガラスコア層の厚さは0.375mmであり、ガラスクラッド層の厚さは0.275mmであった。以下の表5は、この実施例に関して、CS及びCTに対する温度Tの変化の影響を示す。
102、102’ ガラスコア層
103a 第1の表面部分
103b 第2の表面部分
104a、104b ガラスクラッド層
104a’ 外側ガラスクラッド層
104b’ 内側ガラスクラッド層
105 第1の表面
107 第2の表面
108 第1の縁部
109 第2の縁部
110、110’ 分離線
112 角欠け
140 冷却ノズル
142 冷却噴流
150 レーザ光源
152 単一レーザビーム
154a、154b、154a’、154b’ レーザビームスポット
160 温度プロファイル
162a 第1の領域
162b 第2の領域
170 中央張力プロファイル
172a 第1の中央張力減少ゾーン
172b 第2の中央張力減少ゾーン
180 圧縮応力プロファイル
182a 第1の圧縮応力減少ゾーン
190、192 ガラス物品
194 積層ガラス管
200 積層フュージョンドロー装置
202 上側アイソパイプ
204 下側アイソパイプ
206 溶融ガラスクラッド組成物
208 溶融ガラスコア組成物
210、212 トラフ
216、218 下側アイソパイプの外側成形面
220 基部
222、224 上側アイソパイプの外側成形面
330 ガラスコア層組成物の曲線
332 ガラスクラッド層組成物の曲線
334 斜線部
Claims (3)
- 積層強化ガラス基板を切断する方法において、
前記積層強化ガラス基板であって、
第1の表面部分及び該第1の表面部分の反対側の第2の表面部分を備えるガラスコア層と、
前記ガラスコア層の前記第1の表面部分又は前記第2の表面部分と融合する少なくとも1層のガラスクラッド層と、
を備え、前記ガラスコア層は平均コア熱膨張係数CTEcoreを有し、前記少なくとも1層のガラスクラッド層は前記平均コア熱膨張係数CTEcoreよりも小さい平均クラッド熱膨張係数CTEcladdingを有する、積層強化ガラス基板を提供する工程;
前記積層強化ガラス基板の縁部に角欠けを形成する工程;
前記積層強化ガラス基板の前記少なくとも1層のガラスクラッド層上の、所望の分離線の第1の側部からずれている第1の領域、及び、前記所望の分離線の第2の側部からずれている第2の領域を同時に加熱する工程であって、前記ガラスコア層内に、前記所望の分離線において極大(CT 2 )を有し、前記第1の領域及び前記第2の領域で極小(CT 1 )へと減少するような中央張力プロファイルが得られるように加熱する工程;並びに
前記所望の分離線に沿って、前記積層強化ガラス基板の前記第1の領域と前記第2の領域との間に亀裂を伝播させる工程であって、前記亀裂は前記角欠けにおいて開始する工程;
を有してなる方法。 - 冷却噴流を前記角欠けに適用する工程を更に含む、請求項1に記載の方法。
- 前記第1及び第2の領域における前記積層強化ガラス基板の温度は、前記ガラスコア層の歪み点未満、かつ前記少なくとも1層のガラスクラッド層の歪み点未満である、請求項1または2に記載の方法。
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US201261728918P | 2012-11-21 | 2012-11-21 | |
US61/728,918 | 2012-11-21 | ||
PCT/US2013/070864 WO2014081745A1 (en) | 2012-11-21 | 2013-11-20 | Methods of cutting a laminate strengthened glass substrate |
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EP (1) | EP2922794B1 (ja) |
JP (2) | JP6591894B2 (ja) |
KR (1) | KR102154261B1 (ja) |
CN (1) | CN105189380B (ja) |
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WO (1) | WO2014081745A1 (ja) |
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US20150274585A1 (en) * | 2014-03-26 | 2015-10-01 | Apple Inc. | Asymmetric chemical strengthening |
WO2016024962A1 (en) * | 2014-08-13 | 2016-02-18 | Corning Incorporated | Intermediate cte glasses and glass articles comprising the same |
US10479719B2 (en) | 2014-08-28 | 2019-11-19 | Corning Incorporated | Apparatus and method for cutting a glass sheet |
WO2016033038A1 (en) * | 2014-08-28 | 2016-03-03 | Corning Incorporated | Laminated glass article with ion exchangeable core and clad layers having diffusivity contrast and method of making the same |
WO2016073807A1 (en) * | 2014-11-07 | 2016-05-12 | Corning Incorporated | Method of cutting a laminate glass article |
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JP6413693B2 (ja) * | 2014-11-25 | 2018-10-31 | 三星ダイヤモンド工業株式会社 | 脆性基板の分断方法 |
DE102015104801A1 (de) * | 2015-03-27 | 2016-09-29 | Schott Ag | Verfahren und Vorrichtung zum kontinuierlichen Trennen von Glas |
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US10793462B2 (en) | 2015-07-07 | 2020-10-06 | Corning Incorporated | Apparatuses and methods for heating moving glass ribbons at separation lines and/or for separating glass sheets from glass ribbons |
CN113232386B (zh) * | 2015-11-05 | 2023-06-09 | 康宁股份有限公司 | 具有确定模量对比的层压玻璃制品及其形成方法 |
WO2017184548A2 (en) * | 2016-04-18 | 2017-10-26 | Corning Incorporated | Bead removal apparatuses and methods for separating beads from glass sheets with glass engaging units |
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JP2016503386A (ja) | 2016-02-04 |
EP2922794B1 (en) | 2019-08-14 |
JP2018172276A (ja) | 2018-11-08 |
CN105189380B (zh) | 2017-12-01 |
WO2014081745A1 (en) | 2014-05-30 |
US9212081B2 (en) | 2015-12-15 |
TWI596064B (zh) | 2017-08-21 |
KR20150087290A (ko) | 2015-07-29 |
EP2922794A1 (en) | 2015-09-30 |
TW201425244A (zh) | 2014-07-01 |
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