JPH0446905B2 - - Google Patents

Info

Publication number
JPH0446905B2
JPH0446905B2 JP62081667A JP8166787A JPH0446905B2 JP H0446905 B2 JPH0446905 B2 JP H0446905B2 JP 62081667 A JP62081667 A JP 62081667A JP 8166787 A JP8166787 A JP 8166787A JP H0446905 B2 JPH0446905 B2 JP H0446905B2
Authority
JP
Japan
Prior art keywords
glass
molding
shear
molten glass
molds
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 - Lifetime
Application number
JP62081667A
Other languages
English (en)
Japanese (ja)
Other versions
JPS63248727A (ja
Inventor
Kazuo Kogure
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.)
Olympus Corp
Original Assignee
Olympus Optical 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 Olympus Optical Co Ltd filed Critical Olympus Optical Co Ltd
Priority to JP8166787A priority Critical patent/JPS63248727A/ja
Publication of JPS63248727A publication Critical patent/JPS63248727A/ja
Publication of JPH0446905B2 publication Critical patent/JPH0446905B2/ja
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B11/00—Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
    • C03B11/06—Construction of plunger or mould
    • C03B11/08—Construction of plunger or mould for making solid articles, e.g. lenses
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B21/00—Severing glass sheets, tubes or rods while still plastic
    • C03B21/04—Severing glass sheets, tubes or rods while still plastic by punching out
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B7/00—Distributors for the molten glass; Means for taking-off charges of molten glass; Producing the gob, e.g. controlling the gob shape, weight or delivery tact
    • C03B7/10—Cutting-off or severing the glass flow with the aid of knives or scissors or non-contacting cutting means, e.g. a gas jet; Construction of the blades used
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2215/00—Press-moulding glass
    • C03B2215/70—Horizontal or inclined press axis
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2215/00—Press-moulding glass
    • C03B2215/76—Pressing whereby some glass overflows unrestrained beyond the press mould in a direction perpendicular to the press axis
    • C03B2215/77—Pressing whereby some glass overflows unrestrained beyond the press mould in a direction perpendicular to the press axis with means to trim off excess material

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
JP8166787A 1987-04-02 1987-04-02 ガラス成形品の製造方法および製造装置 Granted JPS63248727A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8166787A JPS63248727A (ja) 1987-04-02 1987-04-02 ガラス成形品の製造方法および製造装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8166787A JPS63248727A (ja) 1987-04-02 1987-04-02 ガラス成形品の製造方法および製造装置

Publications (2)

Publication Number Publication Date
JPS63248727A JPS63248727A (ja) 1988-10-17
JPH0446905B2 true JPH0446905B2 (enrdf_load_stackoverflow) 1992-07-31

Family

ID=13752686

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8166787A Granted JPS63248727A (ja) 1987-04-02 1987-04-02 ガラス成形品の製造方法および製造装置

Country Status (1)

Country Link
JP (1) JPS63248727A (enrdf_load_stackoverflow)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5275637A (en) * 1990-01-31 1994-01-04 Canon Kabushiki Kaisha Method of manufacturing a glass optical part
MY169095A (en) * 2009-12-29 2019-02-18 Hoya Corp Manufacturing method of glass substrate for magnetic disk and sheet glass material for magnetic disk
CN106297833B (zh) 2009-12-29 2019-03-08 Hoya株式会社 磁盘用玻璃基板的制造方法以及磁盘用玻璃基板
CN105355216B (zh) 2010-03-31 2017-10-03 Hoya株式会社 磁盘用玻璃基板和玻璃雏形的制造方法以及磁盘用玻璃基板和玻璃雏形
JP5427673B2 (ja) * 2010-03-31 2014-02-26 Ｈｏｙａ株式会社 ガラスブランクの製造方法、磁気録媒体基板の製造方法および磁気記録媒体の製造方法
JP2012160252A (ja) 2011-01-31 2012-08-23 Hoya Corp 磁気ディスク用ガラス基板の製造方法

Also Published As

Publication number Publication date
JPS63248727A (ja) 1988-10-17

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