EP2475938A1 - Method for manufacturing a bended glass sheet, manufacturing system for executing the method, bended mirror assembly with the bended mirror and use of the bended mirror or the assembly with the bended mirror - Google Patents

Method for manufacturing a bended glass sheet, manufacturing system for executing the method, bended mirror assembly with the bended mirror and use of the bended mirror or the assembly with the bended mirror

Info

Publication number
EP2475938A1
EP2475938A1 EP10754457A EP10754457A EP2475938A1 EP 2475938 A1 EP2475938 A1 EP 2475938A1 EP 10754457 A EP10754457 A EP 10754457A EP 10754457 A EP10754457 A EP 10754457A EP 2475938 A1 EP2475938 A1 EP 2475938A1
Authority
EP
European Patent Office
Prior art keywords
glass sheet
bending
mirror
bended
permanent
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.)
Ceased
Application number
EP10754457A
Other languages
German (de)
English (en)
French (fr)
Inventor
Avraham Brenmiller
Dan Raz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens Concentrated Solar Power Ltd
Original Assignee
Siemens Concentrated Solar Power Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens Concentrated Solar Power Ltd filed Critical Siemens Concentrated Solar Power Ltd
Publication of EP2475938A1 publication Critical patent/EP2475938A1/en
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/02—Re-forming glass sheets
    • C03B23/023—Re-forming glass sheets by bending
    • C03B23/035—Re-forming glass sheets by bending using a gas cushion or by changing gas pressure, e.g. by applying vacuum or blowing for supporting the glass while bending
    • C03B23/0352—Re-forming glass sheets by bending using a gas cushion or by changing gas pressure, e.g. by applying vacuum or blowing for supporting the glass while bending by suction or blowing out for providing the deformation force to bend the glass sheet
    • C03B23/0355—Re-forming glass sheets by bending using a gas cushion or by changing gas pressure, e.g. by applying vacuum or blowing for supporting the glass while bending by suction or blowing out for providing the deformation force to bend the glass sheet by blowing without suction directly on the glass sheet
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/02—Re-forming glass sheets
    • C03B23/023—Re-forming glass sheets by bending
    • C03B23/025—Re-forming glass sheets by bending by gravity
    • C03B23/0252—Re-forming glass sheets by bending by gravity by gravity only, e.g. sagging
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/02—Re-forming glass sheets
    • C03B23/023—Re-forming glass sheets by bending
    • C03B23/025—Re-forming glass sheets by bending by gravity
    • C03B23/0256—Gravity bending accelerated by applying mechanical forces, e.g. inertia, weights or local forces
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/02—Re-forming glass sheets
    • C03B23/023—Re-forming glass sheets by bending
    • C03B23/025—Re-forming glass sheets by bending by gravity
    • C03B23/027—Re-forming glass sheets by bending by gravity with moulds having at least two upward pivotable mould sections
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/02—Re-forming glass sheets
    • C03B23/023—Re-forming glass sheets by bending
    • C03B23/035—Re-forming glass sheets by bending using a gas cushion or by changing gas pressure, e.g. by applying vacuum or blowing for supporting the glass while bending
    • C03B23/0352—Re-forming glass sheets by bending using a gas cushion or by changing gas pressure, e.g. by applying vacuum or blowing for supporting the glass while bending by suction or blowing out for providing the deformation force to bend the glass sheet
    • C03B23/0357—Re-forming glass sheets by bending using a gas cushion or by changing gas pressure, e.g. by applying vacuum or blowing for supporting the glass while bending by suction or blowing out for providing the deformation force to bend the glass sheet by suction without blowing, e.g. with vacuum or by venturi effect
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/20—Uniting glass pieces by fusing without substantial reshaping
    • C03B23/203—Uniting glass sheets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
    • F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
    • F24S23/74—Arrangements for concentrating solar-rays for solar heat collectors with reflectors with trough-shaped or cylindro-parabolic reflective surfaces
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/08—Mirrors
    • G02B5/10—Mirrors with curved faces
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/18—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors
    • G02B7/182—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors
    • G02B7/183—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors specially adapted for very large mirrors, e.g. for astronomy, or solar concentrators
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers

Definitions

  • One of the main costs of the mirrors has its origin from forming a glass sheet (glass plate) with a precise parabolic shape.
  • the bending of the glass sheet is usually done in a hot furnace using a high temperature.
  • the present invention provides method for manufacturing a bended glass sheet with a permanent glass sheet bending, wherein the method comprises the following steps: a) Providing a tempered flat precursor glass sheet with a glass sheet thickness selected from the range between 2 mm and 10 mm; b) bending the tempered flat precursor glass sheet with the aid of an external bending force such, that a bended glass sheet with a glass sheet bending results; and c) fixing the glass sheet bending of the bended glass sheet such, that the permanent glass sheet bending results; wherein the bending the tempered flat precursor glass sheet is executed at a bending temperature which is selected from the range between 0°C and 70 °C. In a preferred embodiment the bending temperature is selected from the range between 0°C and 50 °C and particularly from the range between 0°C and 40°C.
  • the method is used for manufacturing a bended mirror with a permanent mirror bending.
  • the tempered glass sheet is coated with a multilayer stack with a reflecting layer containing Silver.
  • the reflecting layer contains Aluminium or other suitable materials. This coated glass sheet is brought into the desired parabolic shape by the described bending process.
  • one "long" mirror can be used. This reduces the costs and improves the optical performance of the concentrator of sunlight.
  • a manufacturing system for executing the method with at least one fixing device for the fixing the glass bending is provided .
  • the external force is caused by at least one power source selected from the group consisting of vacuum, air pressure, mechanical moment force, gravitation and distributed pressure force.
  • the tempered flat precursor glass sheet is fixed at edges of the precursor glass sheet. Point pressure at the edges of the flat glass plate is carried out. Due to the flexibility of the tempered flat precursor glass sheet a center of the tempered flat precursor glass sheet can be moved. The bending of the precursor glass sheet is carried out. Alternatively the center of the flat precursor glass sheet is fixed and the edges of the precursor glass sheet are moved.
  • a holder comprising at least one holder frame, wherein the bending the flat precursor glass sheet and/or the fixing the glass sheet bending of the bended glass sheet are carried out with the aid of the holder frame. For instance, by the holder frame the glass sheet is just held on its edges.
  • a bended glass sheet 121 with a glass sheet bending 122 results.
  • the next step is the fixing the glass sheet bending of the bended glass sheet.
  • the permanent glass sheet bending results.
  • a bended mirror with a permanent parabolic mirror bending is obtained.
  • a holder 14 is used for the bending of the mirror.
  • the mirror assembly with the bended mirror and with the holder results (figure 2) .
  • the holder has the function of the mirror bending fixing device.
  • the bended mirror and the mirror assembly with the bended mirror respectively are used in a solar field for the concentrating sunlight .

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Sustainable Development (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Optics & Photonics (AREA)
  • Sustainable Energy (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Astronomy & Astrophysics (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
EP10754457A 2009-09-08 2010-09-08 Method for manufacturing a bended glass sheet, manufacturing system for executing the method, bended mirror assembly with the bended mirror and use of the bended mirror or the assembly with the bended mirror Ceased EP2475938A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US24044909P 2009-09-08 2009-09-08
PCT/EP2010/063189 WO2011029852A1 (en) 2009-09-08 2010-09-08 Method for manufacturing a bended glass sheet, manufacturing system for executing the method, bended mirror assembly with the bended mirror and use of the bended mirror or the assembly with the bended mirror

Publications (1)

Publication Number Publication Date
EP2475938A1 true EP2475938A1 (en) 2012-07-18

Family

ID=43055330

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10754457A Ceased EP2475938A1 (en) 2009-09-08 2010-09-08 Method for manufacturing a bended glass sheet, manufacturing system for executing the method, bended mirror assembly with the bended mirror and use of the bended mirror or the assembly with the bended mirror

Country Status (5)

Country Link
EP (1) EP2475938A1 (enExample)
CN (1) CN102575874A (enExample)
CL (1) CL2012000618A1 (enExample)
IN (1) IN2012DN02029A (enExample)
WO (1) WO2011029852A1 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10549704B2 (en) 2014-07-10 2020-02-04 Corning Incorporated Cold formed glass applique

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FR2982855B1 (fr) * 2011-11-17 2013-11-08 Saint Gobain Bombage a froid d'un vitrage feuillete
EP2976579B1 (en) 2013-03-20 2019-06-05 Brenmiller Energy Ltd. Heat exchange apparatus and method for energy storage
IL225456A (en) * 2013-03-24 2017-01-31 Brenmiller Energy Ltd Modular solar field
US10336643B2 (en) 2014-08-01 2019-07-02 Corning Incorporated Glass shaping apparatus and methods
ITTO20150219A1 (it) * 2015-04-15 2016-10-15 Istituto Naz Di Astrofisica Processo per la produzione di un'unita' ottica
CN104831940B (zh) * 2015-04-17 2017-03-29 中国建筑第八工程局有限公司 幕墙玻璃冷弯扭拧成型装置
JP2019511447A (ja) 2016-03-09 2019-04-25 コーニング インコーポレイテッド 複雑に湾曲したガラス物品の冷間成形
CN109415247B (zh) 2016-06-28 2022-09-27 康宁公司 将薄强化玻璃层压到用于装饰和显示器盖应用的曲面成型塑料表面
US11607958B2 (en) 2016-07-05 2023-03-21 Corning Incorporated Cold-formed glass article and assembly process thereof
KR102429148B1 (ko) 2016-10-25 2022-08-04 코닝 인코포레이티드 디스플레이에 냉간-성형 유리 적층
US11016590B2 (en) 2017-01-03 2021-05-25 Corning Incorporated Vehicle interior systems having a curved cover glass and display or touch panel and methods for forming the same
EP3686004B1 (en) 2017-01-03 2021-12-08 Corning Incorporated Vehicle interior systems having a curved cover glass and a display
CN110799463B (zh) 2017-05-15 2022-09-09 康宁公司 有轮廓玻璃制品和制造有轮廓玻璃制品的方法
EP4190616A3 (en) 2017-07-18 2023-06-28 Corning Incorporated Cold forming of complexly curved glass articles
JP7124065B2 (ja) 2017-09-12 2022-08-23 コーニング インコーポレイテッド デッドフロントガラスのための触覚エレメントおよびその製造方法
TWI873668B (zh) 2017-09-13 2025-02-21 美商康寧公司 用於顯示器的基於光導器的無電面板、相關的方法及載具內部系統
US11065960B2 (en) 2017-09-13 2021-07-20 Corning Incorporated Curved vehicle displays
TWI844520B (zh) 2017-10-10 2024-06-11 美商康寧公司 具有改善可靠性的彎曲的覆蓋玻璃的車輛內部系統及其形成方法
EP3714316B1 (en) 2017-11-21 2023-12-27 Corning Incorporated Aspheric mirror for head-up display system and methods for forming the same
EP3717958A4 (en) 2017-11-30 2021-08-04 Corning Incorporated SYSTEMS AND METHODS FOR ASPHERIC VACUUM MIRRORS
WO2019108015A2 (en) 2017-11-30 2019-06-06 Corning Precision Materials Co., Ltd. Vacuum mold apparatus, systems, and methods for forming curved mirrors
WO2019169293A1 (en) 2018-03-02 2019-09-06 Corning Incorporated Anti-reflective coatings and articles and methods of forming the same
WO2019177952A1 (en) 2018-03-13 2019-09-19 Corning Incorporated Vehicle interior systems having a crack resistant curved cover glass and methods for forming the same
WO2020014064A1 (en) 2018-07-12 2020-01-16 Corning Incorporated Deadfront configured for color matching
CN112566782A (zh) 2018-07-16 2021-03-26 康宁公司 具冷弯玻璃基板的车辆内部系统及其形成方法
US11858351B2 (en) 2018-11-30 2024-01-02 Corning Incorporated Cold-formed glass article with thermally matched system and process for forming the same
EP3771695A1 (en) 2019-07-31 2021-02-03 Corning Incorporated Method and system for cold-forming glass
US12466756B2 (en) 2019-10-08 2025-11-11 Corning Incorporated Curved glass articles including a bumper piece configured to relocate bending moment from display region and method of manufacturing same
US11772361B2 (en) 2020-04-02 2023-10-03 Corning Incorporated Curved glass constructions and methods for forming same

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Publication number Priority date Publication date Assignee Title
US10549704B2 (en) 2014-07-10 2020-02-04 Corning Incorporated Cold formed glass applique

Also Published As

Publication number Publication date
CL2012000618A1 (es) 2012-08-03
CN102575874A (zh) 2012-07-11
WO2011029852A1 (en) 2011-03-17
IN2012DN02029A (enExample) 2015-07-31

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