AU5837201A - Method for producing fine glass articles and the use of said method - Google Patents

Method for producing fine glass articles and the use of said method

Info

Publication number
AU5837201A
AU5837201A AU58372/01A AU5837201A AU5837201A AU 5837201 A AU5837201 A AU 5837201A AU 58372/01 A AU58372/01 A AU 58372/01A AU 5837201 A AU5837201 A AU 5837201A AU 5837201 A AU5837201 A AU 5837201A
Authority
AU
Australia
Prior art keywords
glass
producing fine
glass articles
fine glass
lower tool
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.)
Abandoned
Application number
AU58372/01A
Inventor
Ralf Bonitz
Christian Schenk
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.)
Korner Steffen
Original Assignee
Korner Steffen
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
Priority claimed from DE2000122903 external-priority patent/DE10022903A1/en
Priority claimed from DE10101587A external-priority patent/DE10101587A1/en
Application filed by Korner Steffen filed Critical Korner Steffen
Publication of AU5837201A publication Critical patent/AU5837201A/en
Abandoned 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
    • C03B11/088—Flat discs
    • 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
    • C03B11/02—Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing in machines with rotary tables
    • 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
    • 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
    • C03B7/12—Cutting-off or severing a free-hanging glass stream, e.g. by the combination of gravity and surface tension forces
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2215/00—Press-moulding glass
    • C03B2215/02—Press-mould materials
    • C03B2215/03—Press-mould materials defined by material properties or parameters, e.g. relative CTE of mould parts
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2215/00—Press-moulding glass
    • C03B2215/40—Product characteristics
    • C03B2215/44—Flat, parallel-faced disc or plate products
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2215/00—Press-moulding glass
    • C03B2215/64—Spinning, centrifuging or using g-force to distribute the glass

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Surface Treatment Of Glass (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Glass Compositions (AREA)

Abstract

The invention relates to a method for producing fine glass articles consisting of low viscosity glass, in particular of glass with viscosities of approximately eta < 10 dPa s. According to said method, a low-viscosity glass mass is supplied to a lower tool (1), whereby the glass mass is compression moulded by joining an upper tool (4), which is located opposite the lower tool (1), with said lower tool (1). In addition, the invention relates to the use of the method. The invention aims to provide a method for producing fine glass articles, which resolves the problem of rapid cooling, present in prior art, thus increasing the quality of the finished glass and allowing the production of fine glass articles by compression moulding. To achieve this, the inventive method is characterized in that the surface roughness (RZ) of the tools (1, 4) ranges between 5 and 15 mu m and the glass gob (2) is preformed between the method step "supply" and the method step "compression" by acceleration forces, whereby forces of between 1 and 10 g (gravitational acceleration) are achieved.
AU58372/01A 2000-04-27 2001-04-26 Method for producing fine glass articles and the use of said method Abandoned AU5837201A (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
DE10020711 2000-04-27
DE10020711 2000-04-27
DE2000122903 DE10022903A1 (en) 2000-05-11 2000-05-11 Production of thin glass articles used e.g. in the production of electrically insulating support plates for circuit boards comprises preforming a glass gob between the supply step and the compression step using acceleration forces
DE10022903 2000-05-11
DE10101587A DE10101587A1 (en) 2000-04-27 2001-01-16 Production of thin glass articles used e.g. in the production of electrically insulating support plates for circuit boards comprises preforming a glass gob between the supply step and the compression step using acceleration forces
DE10101587 2001-01-16
PCT/EP2001/004708 WO2001083386A1 (en) 2000-04-27 2001-04-26 Method for producing fine glass articles by compression moulding

Publications (1)

Publication Number Publication Date
AU5837201A true AU5837201A (en) 2001-11-12

Family

ID=27213830

Family Applications (1)

Application Number Title Priority Date Filing Date
AU58372/01A Abandoned AU5837201A (en) 2000-04-27 2001-04-26 Method for producing fine glass articles and the use of said method

Country Status (5)

Country Link
EP (1) EP1283817B1 (en)
JP (1) JP2003531805A (en)
AT (1) ATE301106T1 (en)
AU (1) AU5837201A (en)
WO (1) WO2001083386A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005041033B4 (en) * 2005-08-26 2010-10-28 Schott Ag Process for producing a pressed glass product
JP2012106884A (en) * 2010-11-17 2012-06-07 Central Glass Co Ltd Method of manufacturing glass-made fresnel lens
JPWO2013001723A1 (en) * 2011-06-30 2015-02-23 Hoya株式会社 Manufacturing method of glass substrate for HDD

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4210433A (en) * 1978-11-15 1980-07-01 Corning Glass Works Forming glass articles by using a spin plate
JPH0234525A (en) * 1988-07-22 1990-02-05 Hoya Corp Method for forming glass element
JPH04175232A (en) * 1990-11-09 1992-06-23 Olympus Optical Co Ltd Method and device for producing optical element
JPH06298536A (en) * 1993-04-09 1994-10-25 Olympus Optical Co Ltd Method for forming glass optical element and apparatus therefor
JPH06305741A (en) * 1993-04-23 1994-11-01 Olympus Optical Co Ltd Molding method of glass optical element
JPH07172843A (en) * 1993-12-17 1995-07-11 Olympus Optical Co Ltd Formation of glass optical element
JPH07291634A (en) * 1994-04-25 1995-11-07 Minolta Co Ltd Production of glass gob and molding of glass gob
JP3568233B2 (en) * 1994-05-12 2004-09-22 オリンパス株式会社 Glass lens molding preform molding equipment
JPH0891852A (en) * 1994-09-27 1996-04-09 Olympus Optical Co Ltd Apparatus for producing preform for forming glass lens
JPH08169722A (en) * 1994-10-06 1996-07-02 Olympus Optical Co Ltd Method and device for forming glass optical element
JPH0986939A (en) * 1995-09-28 1997-03-31 Olympus Optical Co Ltd Molding of optical element and apparatus therefor
JPH09263414A (en) * 1996-03-28 1997-10-07 Olympus Optical Co Ltd Method for forming fused grass and device therefor

Also Published As

Publication number Publication date
JP2003531805A (en) 2003-10-28
EP1283817A1 (en) 2003-02-19
WO2001083386A1 (en) 2001-11-08
ATE301106T1 (en) 2005-08-15
EP1283817B1 (en) 2005-08-03

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase