CH632891GA3 - Process for producing a watch-glass - Google Patents

Process for producing a watch-glass Download PDF

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Publication number
CH632891GA3
CH632891GA3 CH827279A CH827279A CH632891GA3 CH 632891G A3 CH632891G A3 CH 632891GA3 CH 827279 A CH827279 A CH 827279A CH 827279 A CH827279 A CH 827279A CH 632891G A3 CH632891G A3 CH 632891GA3
Authority
CH
Switzerland
Prior art keywords
ring
plate
watch
sapphire
average particle
Prior art date
Application number
CH827279A
Other languages
German (de)
Other versions
CH632891B (en
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
Publication of CH632891B publication Critical patent/CH632891B/en
Application filed filed Critical
Priority to CH827279A priority Critical patent/CH632891GA3/en
Publication of CH632891GA3 publication Critical patent/CH632891GA3/en

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D3/00—Watchmakers' or watch-repairers' machines or tools for working materials
    • G04D3/06—Devices for shaping or setting watch glasses
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C27/00—Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing
    • C03C27/04—Joining glass to metal by means of an interlayer
    • C03C27/042—Joining glass to metal by means of an interlayer consisting of a combination of materials selected from glass, glass-ceramic or ceramic material with metals, metal oxides or metal salts
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C27/00—Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing
    • C03C27/06—Joining glass to glass by processes other than fusing
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B37/00—Joining burned ceramic articles with other burned ceramic articles or other articles by heating
    • C04B37/001—Joining burned ceramic articles with other burned ceramic articles or other articles by heating directly with other burned ceramic articles
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B37/00—Joining burned ceramic articles with other burned ceramic articles or other articles by heating
    • C04B37/003—Joining burned ceramic articles with other burned ceramic articles or other articles by heating by means of an interlayer consisting of a combination of materials selected from glass, or ceramic material with metals, metal oxides or metal salts
    • C04B37/005—Joining burned ceramic articles with other burned ceramic articles or other articles by heating by means of an interlayer consisting of a combination of materials selected from glass, or ceramic material with metals, metal oxides or metal salts consisting of glass or ceramic material
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B37/00—Joining burned ceramic articles with other burned ceramic articles or other articles by heating
    • C04B37/04—Joining burned ceramic articles with other burned ceramic articles or other articles by heating with articles made from glass
    • C04B37/042—Joining burned ceramic articles with other burned ceramic articles or other articles by heating with articles made from glass in a direct manner
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B37/00—Joining burned ceramic articles with other burned ceramic articles or other articles by heating
    • C04B37/04—Joining burned ceramic articles with other burned ceramic articles or other articles by heating with articles made from glass
    • C04B37/045—Joining burned ceramic articles with other burned ceramic articles or other articles by heating with articles made from glass characterised by the interlayer used
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B39/00—Watch crystals; Fastening or sealing of crystals; Clock glasses
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B39/00—Watch crystals; Fastening or sealing of crystals; Clock glasses
    • G04B39/004—Watch crystals; Fastening or sealing of crystals; Clock glasses from a material other than glass
    • G04B39/006—Watch crystals; Fastening or sealing of crystals; Clock glasses from a material other than glass out of wear resistant material, e.g. sapphire
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
    • C04B2235/6567—Treatment time
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/02—Aspects relating to interlayers, e.g. used to join ceramic articles with other articles by heating
    • C04B2237/04—Ceramic interlayers
    • C04B2237/06—Oxidic interlayers
    • C04B2237/064—Oxidic interlayers based on alumina or aluminates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/02—Aspects relating to interlayers, e.g. used to join ceramic articles with other articles by heating
    • C04B2237/04—Ceramic interlayers
    • C04B2237/09—Ceramic interlayers wherein the active component for bonding is not the largest fraction of the interlayer
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/02—Aspects relating to interlayers, e.g. used to join ceramic articles with other articles by heating
    • C04B2237/10—Glass interlayers, e.g. frit or flux
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/30—Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
    • C04B2237/32—Ceramic
    • C04B2237/34—Oxidic
    • C04B2237/343—Alumina or aluminates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/50—Processing aspects relating to ceramic laminates or to the joining of ceramic articles with other articles by heating
    • C04B2237/52—Pre-treatment of the joining surfaces, e.g. cleaning, machining
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/50—Processing aspects relating to ceramic laminates or to the joining of ceramic articles with other articles by heating
    • C04B2237/52—Pre-treatment of the joining surfaces, e.g. cleaning, machining
    • C04B2237/525—Pre-treatment of the joining surfaces, e.g. cleaning, machining by heating
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/50—Processing aspects relating to ceramic laminates or to the joining of ceramic articles with other articles by heating
    • C04B2237/70—Forming laminates or joined articles comprising layers of a specific, unusual thickness
    • C04B2237/708—Forming laminates or joined articles comprising layers of a specific, unusual thickness of one or more of the interlayers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Inorganic Insulating Materials (AREA)
  • Glass Compositions (AREA)
  • Electron Tubes For Measurement (AREA)

Abstract

A ring (2) of sintered aluminium oxide is fastened on a planar round plate (6) of sapphire in such a way that the ring stands up from the plate in the axial direction. An oxide mixture is used as the binder between the transparent plate and the ring. A dry blend comprising about 45 % by weight zinc oxide powder of an average particle diameter of 0.5 mu m and approximately 55 % by weight alpha -aluminium oxide powder of an average particle diameter of 0.3 mu m is prepared. 10 g of this dry blend are suspended in 90 g of ethyleneglycol monomethylether. The contact surface of the ring is evenly coated with this paste. The layer thickness is at most 2.5 mu m. The coated ring and the polished plate of sapphire are heated separately to 950 to 1000 DEG C. Thereafter, the ring is exactly centred with respect to the plate and pressed together for 20 minutes under a pressure of 1000 kg/cm<2>. The ceramic bond between the ring and the plate obtained in this way has an adhesive strength of more than 800 kg/cm<2>. It is therefore possible to fasten just the ring of the watch-glass thus obtained on a watch casing, without having to fear that the connection between the ring and the plate may come apart. <IMAGE>
CH827279A 1979-09-12 1979-09-12 Process for producing a watch-glass CH632891GA3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CH827279A CH632891GA3 (en) 1979-09-12 1979-09-12 Process for producing a watch-glass

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH827279A CH632891GA3 (en) 1979-09-12 1979-09-12 Process for producing a watch-glass

Publications (2)

Publication Number Publication Date
CH632891B CH632891B (en)
CH632891GA3 true CH632891GA3 (en) 1982-11-15

Family

ID=4337790

Family Applications (1)

Application Number Title Priority Date Filing Date
CH827279A CH632891GA3 (en) 1979-09-12 1979-09-12 Process for producing a watch-glass

Country Status (1)

Country Link
CH (1) CH632891GA3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0854403A2 (en) 1997-01-16 1998-07-22 Montres Rado S.A. Wear resistant transparent watch crystal and watch case provided with the same

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH653205GA3 (en) * 1982-07-09 1985-12-31
EP0153721A1 (en) * 1984-02-28 1985-09-04 Klinger AG Looking glass for a liquid-level indicator

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB640292A (en) * 1946-10-19 1950-07-19 Sylvania Electric Prod Glass-to-metal seal
CH369868A (en) * 1959-02-18 1963-06-15 Eitel Mccullough Inc Process for forming a quartz-metal seal and seal obtained by this process
FR1349910A (en) * 1962-08-13 1964-01-24 Enicar S A Watch glass
GB950845A (en) * 1960-08-08 1964-02-26 Ass Elect Ind Improvements in and relating to electrically conducting vacuum seals
BE655029A (en) * 1963-10-29 1965-04-29
US3281174A (en) * 1959-02-18 1966-10-25 Varian Associates Art of sealing quartz to metal
GB1054753A (en) * 1963-03-14 1967-01-11 Gen Electric Improvements in glass-to-metal and glass-to-ceramic seals
GB1294695A (en) * 1969-11-07 1972-11-01 Gen Electric Improvements in ceramic-metal or glass-metal seals
BE829784R (en) * 1972-04-21 1975-10-01 COMPOSITION OF WELDING GLASS AND ITS PREPARATION PROCESS
CH582909B5 (en) * 1971-07-06 1976-12-15 Iwaki Glass Co Ltd
FR2348514A1 (en) * 1976-04-15 1977-11-10 Verrerie Indle Scient IMPROVEMENT IN THE MANUFACTURING OF COVERED GLASSES

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB640292A (en) * 1946-10-19 1950-07-19 Sylvania Electric Prod Glass-to-metal seal
CH369868A (en) * 1959-02-18 1963-06-15 Eitel Mccullough Inc Process for forming a quartz-metal seal and seal obtained by this process
US3281174A (en) * 1959-02-18 1966-10-25 Varian Associates Art of sealing quartz to metal
GB950845A (en) * 1960-08-08 1964-02-26 Ass Elect Ind Improvements in and relating to electrically conducting vacuum seals
FR1349910A (en) * 1962-08-13 1964-01-24 Enicar S A Watch glass
GB1054753A (en) * 1963-03-14 1967-01-11 Gen Electric Improvements in glass-to-metal and glass-to-ceramic seals
BE655029A (en) * 1963-10-29 1965-04-29
GB1294695A (en) * 1969-11-07 1972-11-01 Gen Electric Improvements in ceramic-metal or glass-metal seals
CH582909B5 (en) * 1971-07-06 1976-12-15 Iwaki Glass Co Ltd
BE829784R (en) * 1972-04-21 1975-10-01 COMPOSITION OF WELDING GLASS AND ITS PREPARATION PROCESS
FR2348514A1 (en) * 1976-04-15 1977-11-10 Verrerie Indle Scient IMPROVEMENT IN THE MANUFACTURING OF COVERED GLASSES

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0854403A2 (en) 1997-01-16 1998-07-22 Montres Rado S.A. Wear resistant transparent watch crystal and watch case provided with the same
EP0854403B1 (en) * 1997-01-16 2005-06-29 Montres Rado S.A. Wear resistant transparent watch crystal and watch case provided with the same

Also Published As

Publication number Publication date
CH632891B (en)

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