GB1307263A - Crucible free sintering or melting of glass glass-ceramic ceramic or refractory materials - Google Patents

Crucible free sintering or melting of glass glass-ceramic ceramic or refractory materials

Info

Publication number
GB1307263A
GB1307263A GB3596170A GB3596170A GB1307263A GB 1307263 A GB1307263 A GB 1307263A GB 3596170 A GB3596170 A GB 3596170A GB 3596170 A GB3596170 A GB 3596170A GB 1307263 A GB1307263 A GB 1307263A
Authority
GB
United Kingdom
Prior art keywords
glass
melting
ceramic
batch
laser
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
Application number
GB3596170A
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.)
American Optical Corp
Original Assignee
American Optical Corp
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 American Optical Corp filed Critical American Optical Corp
Publication of GB1307263A publication Critical patent/GB1307263A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/12—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure
    • B23K26/123—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure in an atmosphere of particular gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/12—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/12—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure
    • B23K26/1224—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure in vacuum
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B19/00—Other methods of shaping glass
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B19/00—Other methods of shaping glass
    • C03B19/06—Other methods of shaping glass by sintering, e.g. by cold isostatic pressing of powders and subsequent sintering, by hot pressing of powders, by sintering slurries or dispersions not undergoing a liquid phase reaction
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B29/00—Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
    • C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
    • C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
    • C03B5/235—Heating the glass
    • 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
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/64—Burning or sintering processes

Abstract

1307263 Melting glass and glass-forming batch AMERICAN OPTICAL CORP 24 July 1970 [20 Oct 1969] 35961/70 Headings C1A and C1M A method of crucible free sintering or melting of a mass of glass, glass-ceramic, ceramic or refractory material, such as a glass forming batch, comprising forming the mass of the material and applying a beam from a CO 2 laser to the body for sufficient period of time to sinter or melt at least a surface layer of the body. The unmelted part of the body may act as a support for the portion which is melted or sintered. The method may be carried out in a confined enclosure 10, 12 having one or more windows 40, 42 for transmitting a laser beam, means 14, 16, 18 for evacuating the enclosure and means 22, 24 for introducing a specified atmosphere, and a turntable 30 for supporting the body which is to be melted or sintered. The beam from the laser has a wavelength of 106,000 Šngstrom units. The laser beams are reflected from respective mirrors 44, 46 on to the material. Examples of the materials used include Al 2 O 3 and ZrO 2 powder; melting of a mixture of 70% Al 2 O 3 , 20% SiO 2 , 10% MgO by weight to form a magnesium aluminium spinel; melting a powder consisting of 70% Al 2 O 3 , 20% SiO 2 , 10% BaO to form a glass ceramic; melting a batch consisting of by weight 68À52% SiO 2 , 7À35% Na 2 O; 11À13 % K 2 O, 4À9% BaO, 1À02% Sb 2 O 3 , 1À53% Al 2 O 3 , 1À53% ZnO, 1À02% Ti 2 O, 3À00% Na 2 O 3 to form a glass. Blanks can be remelted as under an electric field and/or under rotation to form fine-polished lens or mirror blanks. The batch may be in the form of tablets, which may be mixed, e.g. with semiconductive or photoconductive particles; or be a mixture of high and low melting glasses; or of foam glass.
GB3596170A 1969-10-20 1970-07-24 Crucible free sintering or melting of glass glass-ceramic ceramic or refractory materials Expired GB1307263A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US86775469A 1969-10-20 1969-10-20

Publications (1)

Publication Number Publication Date
GB1307263A true GB1307263A (en) 1973-02-14

Family

ID=25350410

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3596170A Expired GB1307263A (en) 1969-10-20 1970-07-24 Crucible free sintering or melting of glass glass-ceramic ceramic or refractory materials

Country Status (2)

Country Link
DE (1) DE2032577A1 (en)
GB (1) GB1307263A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005095304A1 (en) * 2004-03-30 2005-10-13 Schott Ag Refractory material and its use, and method for treating refractory material
FR2927073A1 (en) * 2008-01-31 2009-08-07 Cie Ind Des Lasers Cilas Sa TRANSPARENT CERAMICS BASED ON YAG
WO2010056670A1 (en) * 2008-11-13 2010-05-20 Corning Incorporated Methods of making cordierite glass bodies by irradiation and glass bodies obtained thereof
FR2942150A1 (en) * 2009-02-18 2010-08-20 Cerlase PROCESS FOR MELTING AT LEAST ONE MINERAL POWDER MATERIAL
ES2368079A1 (en) * 2009-10-24 2011-11-14 Universidad De Lugo Method and apparatus for the fast manufacture of functional glass and ceramic pieces. (Machine-translation by Google Translate, not legally binding)
CN103521920A (en) * 2013-10-16 2014-01-22 江苏大学 Laser processing device and method without blowing auxiliary gas
CN113480180A (en) * 2021-07-26 2021-10-08 河北省沙河玻璃技术研究院 Preparation method of foamed microcrystalline board

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU87192A1 (en) * 1988-04-07 1989-11-14 Euratom DEVICE FOR PRODUCING AMORPHOUS CERAMIC MATERIALS OR METAL ALLOYS
ES2718929T3 (en) 2014-05-10 2019-07-05 Innovative Sand Gmbh Procedure and device for producing artificial crushing sand, as well as crushed sand, through heat treatment by using sand in the form of fine sand and / or round sand as the starting material
DE102015206237B4 (en) * 2015-04-08 2017-04-13 Felsomat Gmbh & Co Kg Method for vacuum laser welding of an at least two-part workpiece
CN111014951A (en) * 2019-12-27 2020-04-17 广东海洋大学 Method for solving high reflectivity of copper-aluminum laser welding

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005095304A1 (en) * 2004-03-30 2005-10-13 Schott Ag Refractory material and its use, and method for treating refractory material
FR2927073A1 (en) * 2008-01-31 2009-08-07 Cie Ind Des Lasers Cilas Sa TRANSPARENT CERAMICS BASED ON YAG
EP2093202A1 (en) * 2008-01-31 2009-08-26 Compagnie Industrielle des Lasers Cilas YAG-based transparent ceramics
WO2010056670A1 (en) * 2008-11-13 2010-05-20 Corning Incorporated Methods of making cordierite glass bodies by irradiation and glass bodies obtained thereof
CN102245520A (en) * 2008-11-13 2011-11-16 康宁股份有限公司 Methods of making cordierite glass bodies by irradiation and glass bodies obtained thereof
US9133050B2 (en) 2008-11-13 2015-09-15 Corning Incorporated Glass bodies and methods of making
FR2942150A1 (en) * 2009-02-18 2010-08-20 Cerlase PROCESS FOR MELTING AT LEAST ONE MINERAL POWDER MATERIAL
ES2368079A1 (en) * 2009-10-24 2011-11-14 Universidad De Lugo Method and apparatus for the fast manufacture of functional glass and ceramic pieces. (Machine-translation by Google Translate, not legally binding)
CN103521920A (en) * 2013-10-16 2014-01-22 江苏大学 Laser processing device and method without blowing auxiliary gas
CN113480180A (en) * 2021-07-26 2021-10-08 河北省沙河玻璃技术研究院 Preparation method of foamed microcrystalline board

Also Published As

Publication number Publication date
DE2032577A1 (en) 1971-05-13

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees