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JPS6445737A - Method for cooling glass lens and mold - Google Patents
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JPS6445737A - Method for cooling glass lens and mold - Google Patents

Method for cooling glass lens and mold

Info

Publication number
JPS6445737A
JPS6445737A JP20239587A JP20239587A JPS6445737A JP S6445737 A JPS6445737 A JP S6445737A JP 20239587 A JP20239587 A JP 20239587A JP 20239587 A JP20239587 A JP 20239587A JP S6445737 A JPS6445737 A JP S6445737A
Authority
JP
Japan
Prior art keywords
temperature
cooling
mold
inert gas
oxidation
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
JP20239587A
Other languages
Japanese (ja)
Other versions
JPH0712947B2 (en
Inventor
Fusao Nakanishi
Masami Endo
Takao Takahashi
Kotei Iwata
Hisataka Sugiyama
Kichizo Komiyama
Toshio Kashiwagi
Shinji Namita
Hideki Komiya
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.)
Hoya Corp
Shibaura Machine Co Ltd
Original Assignee
Hoya Corp
Toshiba Machine 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 Hoya Corp, Toshiba Machine Co Ltd filed Critical Hoya Corp
Priority to JP20239587A priority Critical patent/JPH0712947B2/en
Publication of JPS6445737A publication Critical patent/JPS6445737A/en
Publication of JPH0712947B2 publication Critical patent/JPH0712947B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C03B11/12—Cooling, heating, or insulating the plunger, the mould, or the glass-pressing machine; cooling or heating of the glass in the mould

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
  • Glass Compositions (AREA)

Abstract

PURPOSE:To effectively and economically use inert gas used in a mold cooling process, by cooling glass lens and mold by the inert gas in oxidation temperature area and changing cooling by the inert gas to cooling by air when the mold temperature attains oxidation initiation temperature of below. CONSTITUTION:Molds 14 and 15 in a molding chamber 4 in the press apparatus 100 of a glass lens are cooled by the following procedure: In press molding process of raw material glass W, relatively small amount of inert gas (N2 gas) is fed from an inert gas inlets 6 and 8. In early period of mold cooling process after molding, i.e. in the first cooling range B1 till temperature of molds 14 and 15 attain oxidation temperature T or below, large amount of inert gasses are fed. When the mold temperature attain the above-mentioned temperature T or below, the first feed source 201 is changed to the second feed source 202 by operation of a changeover valve 200 by a temperature detector 20 and the second cooling range B2 from the temperature T or below which is free from fear of oxidation of molds 14 and 15 is cooled by air. As a result, cooling of glass lens and mold, etc., can be economically carried out in used amount of inert gas of 1/2 compared with a conventional used amount.
JP20239587A 1987-08-13 1987-08-13 Glass lens and mold cooling method Expired - Lifetime JPH0712947B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20239587A JPH0712947B2 (en) 1987-08-13 1987-08-13 Glass lens and mold cooling method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20239587A JPH0712947B2 (en) 1987-08-13 1987-08-13 Glass lens and mold cooling method

Publications (2)

Publication Number Publication Date
JPS6445737A true JPS6445737A (en) 1989-02-20
JPH0712947B2 JPH0712947B2 (en) 1995-02-15

Family

ID=16456784

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20239587A Expired - Lifetime JPH0712947B2 (en) 1987-08-13 1987-08-13 Glass lens and mold cooling method

Country Status (1)

Country Link
JP (1) JPH0712947B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014139112A (en) * 2013-01-21 2014-07-31 Chao-Wei Metal Industrial Co Ltd Method of producing plate-like workpiece provided with microstructure in surface

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014139112A (en) * 2013-01-21 2014-07-31 Chao-Wei Metal Industrial Co Ltd Method of producing plate-like workpiece provided with microstructure in surface

Also Published As

Publication number Publication date
JPH0712947B2 (en) 1995-02-15

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