FR2041521A5 - Moulding hollow glass ceramic articles - Google Patents

Moulding hollow glass ceramic articles

Info

Publication number
FR2041521A5
FR2041521A5 FR6913457A FR6913457A FR2041521A5 FR 2041521 A5 FR2041521 A5 FR 2041521A5 FR 6913457 A FR6913457 A FR 6913457A FR 6913457 A FR6913457 A FR 6913457A FR 2041521 A5 FR2041521 A5 FR 2041521A5
Authority
FR
France
Prior art keywords
al2o3
sio2
li2o
na2o
mgo
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.)
Expired
Application number
FR6913457A
Other languages
French (fr)
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.)
OI Glass Inc
Original Assignee
Owens Illinois Inc
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 Owens Illinois Inc filed Critical Owens Illinois Inc
Priority to NL6906539A priority Critical patent/NL6906539A/xx
Priority to FR6913457A priority patent/FR2041521A5/en
Application granted granted Critical
Publication of FR2041521A5 publication Critical patent/FR2041521A5/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/08—Mirrors
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B19/00—Other methods of shaping glass
    • C03B19/02—Other methods of shaping glass by casting molten glass, e.g. injection moulding
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B32/00—Thermal after-treatment of glass products not provided for in groups C03B19/00, C03B25/00 - C03B31/00 or C03B37/00, e.g. crystallisation, eliminating gas inclusions or other impurities; Hot-pressing vitrified, non-porous, shaped glass products
    • C03B32/02—Thermal crystallisation, e.g. for crystallising glass bodies into glass-ceramic articles
    • 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
    • C03C10/00—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition
    • 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
    • C03C10/00—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition
    • C03C10/0018—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition containing SiO2, Al2O3 and monovalent metal oxide as main constituents
    • C03C10/0027—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition containing SiO2, Al2O3 and monovalent metal oxide as main constituents containing SiO2, Al2O3, Li2O as main constituents

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacturing & Machinery (AREA)
  • Thermal Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Glass Compositions (AREA)

Abstract

The process is based on the use of inserts made of heat dried pastes of water (15-50 parts) to 100 parts of a mixture of several metallic and non-metallic oxides materials which is water-soluble and can be dissolved out after solidification of the casting; also that it yields sufficiently to take up the crystallization contraction, avoiding stress cracking. The paste is fire-proof and withstands the pouring of glass around it. Each cavity must have at least one orifice to the outside, for securing and dissolving-out access. Typical glass compositions contain (% wt.) 56-70 SiO2, 18-27 Al2O3, 3.4-4.5 Li2O with opt. up to 3% CaO, 2% ZnO 4.6 B2O3 6% TiO2 3% ZrO2 3% MgO, 1% Na2O 3% P2O5 in which SiO2+Al2O3 >=82, SiO2+Al2O3+B2O3+P2O5 = 86-91, CaO+MgO+ZnO+Na2O=2.5-6 SiO2+AL2O3+B2O3+Li2O is not >93, TiO2+ZrO=2.6 and the ratio CaO+MgO+ZnO+ Na2O+B2O3: Li2O 2.4 and SiO2:Al2O3 is not >3.8.
FR6913457A 1969-04-28 1969-04-28 Moulding hollow glass ceramic articles Expired FR2041521A5 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
NL6906539A NL6906539A (en) 1969-04-28 1969-04-28
FR6913457A FR2041521A5 (en) 1969-04-28 1969-04-28 Moulding hollow glass ceramic articles

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL6906539A NL6906539A (en) 1969-04-28 1969-04-28
FR6913457A FR2041521A5 (en) 1969-04-28 1969-04-28 Moulding hollow glass ceramic articles

Publications (1)

Publication Number Publication Date
FR2041521A5 true FR2041521A5 (en) 1971-01-29

Family

ID=26214982

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6913457A Expired FR2041521A5 (en) 1969-04-28 1969-04-28 Moulding hollow glass ceramic articles

Country Status (2)

Country Link
FR (1) FR2041521A5 (en)
NL (1) NL6906539A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015027969A1 (en) * 2013-09-02 2015-03-05 Tomas Bata University In Zlin Hollow three dimensional glass sculpture and method of making thereof
CZ307708B6 (en) * 2017-12-21 2019-02-27 Univerzita Tomáše Bati ve Zlíně A method of producing a hollow thick-walled three-dimensional glass sculpture
US11236012B2 (en) 2018-03-28 2022-02-01 Corning Incorporated Boron phosphate glass-ceramics with low dielectric loss

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015027969A1 (en) * 2013-09-02 2015-03-05 Tomas Bata University In Zlin Hollow three dimensional glass sculpture and method of making thereof
CZ307708B6 (en) * 2017-12-21 2019-02-27 Univerzita Tomáše Bati ve Zlíně A method of producing a hollow thick-walled three-dimensional glass sculpture
US11236012B2 (en) 2018-03-28 2022-02-01 Corning Incorporated Boron phosphate glass-ceramics with low dielectric loss

Also Published As

Publication number Publication date
NL6906539A (en) 1970-10-30

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Legal Events

Date Code Title Description
ST Notification of lapse