GB1115174A - Method of tempering spherical glass particles - Google Patents

Method of tempering spherical glass particles

Info

Publication number
GB1115174A
GB1115174A GB3910165A GB3910165A GB1115174A GB 1115174 A GB1115174 A GB 1115174A GB 3910165 A GB3910165 A GB 3910165A GB 3910165 A GB3910165 A GB 3910165A GB 1115174 A GB1115174 A GB 1115174A
Authority
GB
United Kingdom
Prior art keywords
glass particles
spherical glass
glass
temperature
less
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
GB3910165A
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.)
Union Carbide Corp
Original Assignee
Union Carbide Corp
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 Union Carbide Corp filed Critical Union Carbide Corp
Publication of GB1115174A publication Critical patent/GB1115174A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B19/00—Other methods of shaping glass
    • C03B19/10—Forming beads
    • C03B19/1095—Thermal after-treatment of beads, e.g. tempering, crystallisation, annealing
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B19/00—Other methods of shaping glass
    • C03B19/10—Forming beads
    • C03B19/1005—Forming solid beads
    • C03B19/1045—Forming solid beads by bringing hot glass in contact with a liquid, e.g. shattering
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Glass Compositions (AREA)

Abstract

A process for the production of spherical glass particles having an improved crush strength comprises quenching heated pre-formed spherical glass particles by immersing them in an aqueous solution of an ethylene oxide polymer. The spherical glass particles may be made by moving a bed of glass particles mixed with finely divided carbon (e.g. acetylene black) through a heating zone, or by the known methods of aspirating or blowing a spray from a molten pool of glass. The spheres are formed at a temperature of about 900 DEG C. and preferably enter the quenching liquid at a temperature not less than 650 DEG C. They may, therefore, be allowed to fall through air for such a distance that they are cooled to not less than 650 DEG C. A number of different compositions of the quench bath are given. The glass used may be a soda-lime-silica, lead or borosilicate glass.
GB3910165A 1964-09-15 1965-09-14 Method of tempering spherical glass particles Expired GB1115174A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US39673764A 1964-09-15 1964-09-15

Publications (1)

Publication Number Publication Date
GB1115174A true GB1115174A (en) 1968-05-29

Family

ID=23568439

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3910165A Expired GB1115174A (en) 1964-09-15 1965-09-14 Method of tempering spherical glass particles

Country Status (1)

Country Link
GB (1) GB1115174A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1460043A1 (en) * 2001-12-26 2004-09-22 Matsushita Electric Industrial Co., Ltd. Process and apparatus for producing spherical glass
US7328594B2 (en) * 2001-12-14 2008-02-12 Hoya Corporation Processes for the production of glass article

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7328594B2 (en) * 2001-12-14 2008-02-12 Hoya Corporation Processes for the production of glass article
EP1460043A1 (en) * 2001-12-26 2004-09-22 Matsushita Electric Industrial Co., Ltd. Process and apparatus for producing spherical glass
US7240518B2 (en) 2001-12-26 2007-07-10 Matsushita Electric Industrial Co., Ltd. Process for producing spherical glass
EP1460043A4 (en) * 2001-12-26 2011-08-10 Panasonic Corp Process and apparatus for producing spherical glass

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