JPS6414118A - Metallic die structure for forming precise glass product - Google Patents

Metallic die structure for forming precise glass product

Info

Publication number
JPS6414118A
JPS6414118A JP16869387A JP16869387A JPS6414118A JP S6414118 A JPS6414118 A JP S6414118A JP 16869387 A JP16869387 A JP 16869387A JP 16869387 A JP16869387 A JP 16869387A JP S6414118 A JPS6414118 A JP S6414118A
Authority
JP
Japan
Prior art keywords
lens
metallic
molds
contact
cool
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.)
Pending
Application number
JP16869387A
Other languages
Japanese (ja)
Inventor
Osamu Yamada
Osami Kaneto
Takashi Yashiki
Ryoji Iwamura
Hiroya Murakami
Kyoko Amamiya
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP16869387A priority Critical patent/JPS6414118A/en
Publication of JPS6414118A publication Critical patent/JPS6414118A/en
Pending 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
    • C03B11/125—Cooling
    • 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

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)

Abstract

PURPOSE:To uniformly cool with high speed and to improve the productivity by bringing cooling plates into contact with forming metallic dies to swiftly cool the molds and disposing the contact part between the forming metallic dies and the cooling plates in optimum arrangement so that uniform cooling is carried out. CONSTITUTION:For instance, a glass lens 1 is formed by pressing the glass material heated below the softening temp. and over the transition temp. of glass by the upper and the lower metallic molds 2, 3, through insulating plates 7, 8. Then, the cooling plates 4, 5 of halved cylindrical shape made of stainless steel which is always cooled by the cooling water of about 20 deg.C flowed through inner holes 6 and is placed apart from the metallic molds 4, 5 when the molds are heated, is brought into contact with the side surfaces of the metallic dies 2, 3 to cool the metallic dies 2, 3 and the lens 1 up to the temp. at which the lens 1 is solidified and allowed to take out without deformation. By densting 2l/L (contact rate) as 0.2-0.8, in which (l) is contact length and L is the total length of the metallic molds 2, 3 in the molding state, the lens is cooled within about four minutes securing the dimensional precision of lens.
JP16869387A 1987-07-08 1987-07-08 Metallic die structure for forming precise glass product Pending JPS6414118A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16869387A JPS6414118A (en) 1987-07-08 1987-07-08 Metallic die structure for forming precise glass product

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16869387A JPS6414118A (en) 1987-07-08 1987-07-08 Metallic die structure for forming precise glass product

Publications (1)

Publication Number Publication Date
JPS6414118A true JPS6414118A (en) 1989-01-18

Family

ID=15872711

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16869387A Pending JPS6414118A (en) 1987-07-08 1987-07-08 Metallic die structure for forming precise glass product

Country Status (1)

Country Link
JP (1) JPS6414118A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0283222A (en) * 1988-09-20 1990-03-23 Olympus Optical Co Ltd Method for cooling forming mold of device for forming optical element
JP2004026540A (en) * 2002-06-24 2004-01-29 Toshiba Mach Co Ltd Apparatus and method for molding glass

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0283222A (en) * 1988-09-20 1990-03-23 Olympus Optical Co Ltd Method for cooling forming mold of device for forming optical element
JP2004026540A (en) * 2002-06-24 2004-01-29 Toshiba Mach Co Ltd Apparatus and method for molding glass

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