JPS5585429A - Strengthened and bent plate glass - Google Patents

Strengthened and bent plate glass

Info

Publication number
JPS5585429A
JPS5585429A JP11540178A JP11540178A JPS5585429A JP S5585429 A JPS5585429 A JP S5585429A JP 11540178 A JP11540178 A JP 11540178A JP 11540178 A JP11540178 A JP 11540178A JP S5585429 A JPS5585429 A JP S5585429A
Authority
JP
Japan
Prior art keywords
strengthened
plate glass
thickness
bent
bending portion
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.)
Granted
Application number
JP11540178A
Other languages
Japanese (ja)
Other versions
JPS5723648B2 (en
Inventor
Yutaka Yamauchi
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.)
Central Glass Co Ltd
Original Assignee
Central Glass Co 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 Central Glass Co Ltd filed Critical Central Glass Co Ltd
Priority to JP11540178A priority Critical patent/JPS5585429A/en
Publication of JPS5585429A publication Critical patent/JPS5585429A/en
Publication of JPS5723648B2 publication Critical patent/JPS5723648B2/ja
Granted 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
    • C03B23/025—Re-forming glass sheets by bending by gravity
    • C03B23/0258—Gravity bending involving applying local or additional heating, cooling or insulating means
    • 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
    • C03B23/0235—Re-forming glass sheets by bending involving applying local or additional heating, cooling or insulating means

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)

Abstract

PURPOSE: To allow plate glass to hold sufficient strength by restricting the curvature radius of the inside of a bending portion and specifying the relation between the min. thickness of the portion and the thickness of flat portions to make the curvature of the bending portion small.
CONSTITUTION: The whole of plate glass is uniformly heated, and a bening portion is locally heated to the softening temp. with a heating element such as a silicon arbide rod and bent to an angle of 90W105°. The whole of this glass is then allowed to reach a strengthening temp. zone and strengthened by quenching. At this time, the curvature radius of the inside of the bending portion is adjusted to 4W10mm, and considering the min. thickness of the portion to be t and the thickness of flat portions to be T, equation 0.78≤t/T≤0.88 is satisfied. By this method strengthened and bent plate glass whose bent portion has been uniformly strengthened is obtd.
COPYRIGHT: (C)1980,JPO&Japio
JP11540178A 1978-09-20 1978-09-20 Strengthened and bent plate glass Granted JPS5585429A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11540178A JPS5585429A (en) 1978-09-20 1978-09-20 Strengthened and bent plate glass

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11540178A JPS5585429A (en) 1978-09-20 1978-09-20 Strengthened and bent plate glass

Publications (2)

Publication Number Publication Date
JPS5585429A true JPS5585429A (en) 1980-06-27
JPS5723648B2 JPS5723648B2 (en) 1982-05-19

Family

ID=14661643

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11540178A Granted JPS5585429A (en) 1978-09-20 1978-09-20 Strengthened and bent plate glass

Country Status (1)

Country Link
JP (1) JPS5585429A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5913639A (en) * 1982-07-16 1984-01-24 Asahi Glass Co Ltd Manufacture of bent tempered glass plate
WO2013055587A1 (en) * 2011-10-10 2013-04-18 Corning Incorporated Apparatus and method for tight bending thin glass sheets
EP2860159A1 (en) * 2013-10-14 2015-04-15 Sfera S.R.L. Method for bending glass sheets and glass sheet thereof
JP2018080108A (en) * 2010-11-30 2018-05-24 コーニング インコーポレイテッド Method and apparatus for bending a material sheet into a molded article
CN110128008A (en) * 2019-05-16 2019-08-16 平顶山市东丽华实业有限公司 Low ultra-thin strengthened glass of radius of curvature and preparation method thereof, glass devices and element glass

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4870087A (en) * 1971-12-27 1973-09-22
JPS4940314A (en) * 1972-08-25 1974-04-15
JPS5075614A (en) * 1973-11-09 1975-06-20

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4870087A (en) * 1971-12-27 1973-09-22
JPS4940314A (en) * 1972-08-25 1974-04-15
JPS5075614A (en) * 1973-11-09 1975-06-20

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5913639A (en) * 1982-07-16 1984-01-24 Asahi Glass Co Ltd Manufacture of bent tempered glass plate
JP2018080108A (en) * 2010-11-30 2018-05-24 コーニング インコーポレイテッド Method and apparatus for bending a material sheet into a molded article
WO2013055587A1 (en) * 2011-10-10 2013-04-18 Corning Incorporated Apparatus and method for tight bending thin glass sheets
US9061934B2 (en) 2011-10-10 2015-06-23 Corning Incorporated Apparatus and method for tight bending thin glass sheets
EP2860159A1 (en) * 2013-10-14 2015-04-15 Sfera S.R.L. Method for bending glass sheets and glass sheet thereof
CN110128008A (en) * 2019-05-16 2019-08-16 平顶山市东丽华实业有限公司 Low ultra-thin strengthened glass of radius of curvature and preparation method thereof, glass devices and element glass

Also Published As

Publication number Publication date
JPS5723648B2 (en) 1982-05-19

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