JP5155873B2 - 板ガラスの強化装置及び方法 - Google Patents
板ガラスの強化装置及び方法 Download PDFInfo
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- 238000000034 method Methods 0.000 title claims description 55
- 239000005357 flat glass Substances 0.000 title claims description 32
- 238000005728 strengthening Methods 0.000 title claims description 30
- 239000011521 glass Substances 0.000 claims description 158
- 238000010791 quenching Methods 0.000 claims description 124
- 238000001816 cooling Methods 0.000 claims description 68
- 230000000171 quenching effect Effects 0.000 claims description 59
- 230000006835 compression Effects 0.000 claims description 35
- 238000007906 compression Methods 0.000 claims description 35
- 239000012809 cooling fluid Substances 0.000 claims description 27
- 238000005496 tempering Methods 0.000 claims description 21
- 239000012530 fluid Substances 0.000 claims description 17
- 230000009477 glass transition Effects 0.000 claims description 6
- 239000000110 cooling liquid Substances 0.000 claims 1
- 239000005341 toughened glass Substances 0.000 description 8
- 238000005336 cracking Methods 0.000 description 7
- 150000002500 ions Chemical class 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 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 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 238000003426 chemical strengthening reaction Methods 0.000 description 2
- 239000008119 colloidal silica Substances 0.000 description 2
- 230000001186 cumulative effect Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910001338 liquidmetal Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 238000000859 sublimation Methods 0.000 description 2
- 230000008022 sublimation Effects 0.000 description 2
- 208000034693 Laceration Diseases 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000005347 annealed glass Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000002301 combined effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000000112 cooling gas Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000005346 heat strengthened glass Substances 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- -1 potassium Chemical class 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003763 resistance to breakage Effects 0.000 description 1
- 239000006058 strengthened glass Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Images
Classifications
-
- 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
- C03B27/044—Tempering or quenching glass products using gas for flat or bent glass sheets being in a horizontal position
-
- 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
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B27/00—Tempering or quenching glass products
- C03B27/02—Tempering or quenching glass products using liquid
-
- 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
- C03B27/0413—Stresses, e.g. patterns, values or formulae for flat or bent glass sheets
-
- 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
- C03B27/0417—Controlling or regulating for flat or bent glass sheets
-
- 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
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- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Mathematical Physics (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Description
板ガラス14等のガラス品を炉12内でガラスのガラス転移温度以上の温度に加熱する。非限定的な一実施の形態においては、板ガラスを1,160゜F(627℃)以上の温度に加熱する。しかし、当業者には明らかであるが、板ガラスを加熱する温度が高ければ高いほど、得られる表面圧縮は大きくなる。
ここで、Qは熱除去速度[Btu/hr・ft2]、HTCは伝熱係数[Btu/hr・ft2・゜F]、Tガラスはある任意の時点におけるガラスの温度、T流体は対応する時間における冷却流体の温度、qradは輻射により失われる熱である。ガラスの温度等に限定されるものではないが、操作パラメータに応じて、他の伝熱成分と比較してqradを比較的小さくすることができる。
Claims (13)
- (a)33BTU/(hr・ft 2 ・°F)から129BTU/(hr・ft 2 ・°F)の範囲の第一伝熱係数を使用して、最初の時間、板ガラスを第一伝熱率での第一ガス状冷却流体で冷却し、
(b)工程(a)の後、板ガラスを第一伝熱率よりも高い第二伝熱率の第二のガス状冷却流体でもって、および前記第一ガス状冷却流体および第二ガス状冷却流体が同じかまたは異なることができ、65BTU/(hr・ft 2 ・°F)から235BTU/(hr・ft 2 ・°F)の範囲の第二伝熱係数を使用して冷却し、
(c)板ガラスを、工程(a)および(b)の各々におけるガラスの表面張力が5000psi以下に冷却する
工程を含む、テンパリング温度に加熱された板ガラスの強化方法であって、
少なくとも1つの可動ノズルを有する急冷ステーションを提供し、
第一の時間のための第一伝熱率でありかつ33BTU/(hr・ft 2 ・°F)から129BTU/(hr・ft 2 ・°F)の範囲の第一伝熱係数である第一ガス状冷却流体で冷却される急冷ステーション内に、加熱された板ガラスを搬送し、
前記板ガラスが、第二伝熱率でありかつ前記第一伝熱係数よりも高くまた65BTU/(hr・ft 2 ・°F)から235BTU/(hr・ft 2 ・°F)の範囲の第二伝熱係数である第二ガス状冷却流体で冷却されるように、前記板ガラスに適用される伝熱率を変化させるべく、前記板ガラスからの第一の距離から第二の距離まで前記少なくとも1つのノズルを移動させる
ことをさらに含む、テンパリング温度に加熱された板ガラスの強化方法。 - 単一の急冷ステーション内で前記工程(a)及び(b)を実施する請求項1に記載の方法。
- 第一急冷ステーションにおいて板ガラスを第一伝熱率で冷却し、
第一急冷ステーションの下流の第二急冷ステーションにおいて、板ガラスを第二伝熱率で冷却する、
ことを含む請求項1に記載の方法。 - ガラス中心温度がガラス転移範囲以下になるまで、あるいは連続した急冷ステーションによる最終表面圧縮への寄与が実質的に零になるまで、板ガラスを連続した急冷ステーションで冷却する、
ことを更に含む請求項1に記載の方法。 - 強化処理中に、板ガラスを4,800psi(約33.1MPa)以下の表面張力に維持する、ことを含む請求項1に記載の方法。
- 第一及び第二熱除去速度が、冷却流体の温度、ノズルからガラスまでの距離、流体の流速、流体圧、及び冷却流体の種類の少なくとも1つの調整によって調整される、請求項1に記載の方法。
- (a)最初の時間のための33BTU/(hr・ft 2 ・°F)から129BTU/(hr・ft 2 ・°F)の範囲の第一伝熱係数を用いて第一急冷ステーション内の板ガラスを第一ガス状冷却流体で冷却し、
(b)65BTU/(hr・ft 2 ・°F)から235BTU/(hr・ft 2 ・°F)の範囲の第二伝熱係数であって、第一伝熱係数よりも大きい第二伝熱係数を用いて、前記第一急冷ステーションの下流の第二急冷ステーション内の板ガラスを、前記第一ガス状冷却流体および第二ガス状冷却流体が同じかまたは異なったものであり得る第二ガス状冷却流体でもって冷却し、
(c)板ガラスを、工程(a)および(b)の各々におけるガラスの表面張力が5000psiに等しいかそれより小さくなるように冷却する
工程を含む、テンパリング温度に加熱された板ガラスの強化方法。 - 第一及び第二伝熱係数が、冷却流体の温度、ノズルからガラスまでの距離、流体の流速、流体圧、及び冷却流体の種類の少なくとも1つの調整によって調整される、請求項7に記載の方法。
- 請求項1に記載の方法により製造される板ガラス。
- 請求項7に記載の方法により製造される板ガラス。
- 第一の距離が第二の距離よりも長い請求項1に記載の方法。
- 少なくとも1つの上部ノズルと少なくとも1つの下部ノズルを有する急冷ステーションを備え、
加熱された板ガラスを、該ガラス板が第一伝熱率におけるかつ33BTU/(hr・ft 2 ・°F)から129BTU/(hr・ft 2 ・°F)の範囲の第一伝熱係数における第一ガス状冷却流体で冷却される前記急冷ステーション内に搬送し、
前記板ガラスが第二伝熱率および前記第一伝熱係数よりも高くおよび65BTU/(hr・ft 2 ・°F)から235BTU/(hr・ft 2 ・°F)の範囲の前記第一伝熱係数よりも高い第二伝熱係数を提供すべく、第二ガス状冷却流体で冷却されるように、前記板ガラスに適用される伝熱率を変化させるべく、前記板ガラスからの第一の距離から第二の距離まで上部及び/又は下部ノズルを移動させる
ことをさらに含む、請求項1に記載の方法。 - 第一の距離が第二の距離よりも長い請求項12に記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/288,708 | 2005-11-29 | ||
US11/288,708 US8234883B2 (en) | 2005-11-29 | 2005-11-29 | Apparatus and method for tempering glass sheets |
PCT/US2006/043940 WO2007064458A2 (en) | 2005-11-29 | 2006-11-13 | Apparatus and method for tempering glass sheets |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009515811A JP2009515811A (ja) | 2009-04-16 |
JP5155873B2 true JP5155873B2 (ja) | 2013-03-06 |
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Application Number | Title | Priority Date | Filing Date |
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JP2008541245A Active JP5155873B2 (ja) | 2005-11-29 | 2006-11-13 | 板ガラスの強化装置及び方法 |
Country Status (9)
Country | Link |
---|---|
US (1) | US8234883B2 (ja) |
EP (1) | EP1957419B1 (ja) |
JP (1) | JP5155873B2 (ja) |
KR (1) | KR100987903B1 (ja) |
CN (1) | CN101312919B (ja) |
CA (1) | CA2630036C (ja) |
PL (1) | PL1957419T3 (ja) |
RU (1) | RU2424987C2 (ja) |
WO (1) | WO2007064458A2 (ja) |
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US10654742B2 (en) | 2016-02-26 | 2020-05-19 | AGC Inc. | Method for tempering glass plate, and tempered glass plate |
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PL1957419T3 (pl) | 2019-01-31 |
US20070122580A1 (en) | 2007-05-31 |
US8234883B2 (en) | 2012-08-07 |
WO2007064458A2 (en) | 2007-06-07 |
CA2630036A1 (en) | 2007-06-07 |
WO2007064458A3 (en) | 2007-07-26 |
RU2424987C2 (ru) | 2011-07-27 |
KR100987903B1 (ko) | 2010-10-13 |
RU2008126317A (ru) | 2010-01-10 |
CN101312919A (zh) | 2008-11-26 |
EP1957419B1 (en) | 2018-07-04 |
CA2630036C (en) | 2015-12-29 |
KR20080063866A (ko) | 2008-07-07 |
CN101312919B (zh) | 2013-04-10 |
EP1957419A2 (en) | 2008-08-20 |
JP2009515811A (ja) | 2009-04-16 |
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