Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags

CCHEMISTRY METALLURGY C03Glass mineral C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES

C03B37/00Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags

C03B37/005Manufacture of flakes C03B37/01Manufacture of glass fibres or filaments C03B37/011starting from a liquid phase reaction process C03B37/012Manufacture of preforms for drawing fibres or filaments C03B37/01202Means for storing or carrying optical fibre preforms C03B37/01205starting from tubes, rods, fibres or filaments C03B37/01208for making preforms of microstructured, photonic crystal or holey optical fibres C03B37/01211by inserting one or more rods or tubes into a tube C03B37/01214for making preforms of multifibres, fibre bundles other than multiple core preforms C03B37/01217for making preforms of polarisation-maintaning optical fibres C03B37/0122for making preforms of photonic crystal, microstructured or holey optical fibres C03B37/01222for making preforms of multiple core optical fibres C03B37/01225Means for changing or stabilising the shape C03B37/01228Removal of preform material C03B37/01231to form a longitudinal hole C03B37/01234to form longitudinal grooves C03B37/01237to modify the diameter by heat-polishing C03B37/0124Means for reducing the diameter of rods or tubes by drawing C03B37/01242Controlling or regulating the down-draw process C03B37/01245by drawing and collapsing C03B37/01248by collapsing without drawing C03B37/01251Reshaping the ends C03B37/01254by expanding radially C03B37/01257Heating devices therefor C03B37/0126Means for supporting, rotating, translating the rod, tube or preform C03B37/01262Depositing additional preform material as liquids or solutions C03B37/01265starting entirely or partially from molten glass C03B37/01268by casting C03B37/01271by centrifuging C03B37/01274by extrusion or drawing C03B37/01277by projecting or spraying the melt C03B37/0128starting from pulverulent glass C03B37/01282by pressing or sintering C03B37/01285by centrifuging C03B37/01288by extrusion C03B37/01291by progressive melting C03B37/01294by delivering pulverulent glass to the deposition target or preform where the powder is progressively melted C03B37/01297by melting glass powder in a mould C03B37/014made entirely or partially by chemical means C03B37/01406Deposition reactors therefor C03B37/01413Reactant delivery systems C03B37/0142Reactant deposition burners C03B37/01426Plasma deposition burners or torches C03B37/01433for delivering and depositing additional reactants as liquids or solutions C03B37/0144Means for after-treatment or catching of worked reactant gases C03B37/01446Thermal after-treatment of preforms C03B37/01453for doping the preform with flourine C03B37/0146Furnaces therefor C03B37/01466Means for changing or stabilising the diameter or form of tubes or rods C03B37/01473Collapsing C03B37/0148Means for heating preforms during or immediately prior to deposition C03B37/01486Means for supporting, rotating or translating the preforms being formed C03B37/01493Deposition substrates C03B37/016by a liquid phase reaction process C03B37/018by glass deposition on a glass substrate, e.g. by inside-, modified-, plasma-, or plasma modified- chemical vapour deposition [ICVD, MCVD, PCVD, PMCVD] C03B37/01807Reactant delivery systems C03B37/01815Reactant deposition burners or deposition heating means C03B37/01823Plasma deposition burners or heating means C03B37/0183for plasma within a tube substrate C03B37/01838for delivering and depositing additional reactants as liquids or solutions C03B37/01846Means for after-treatment or catching of worked reactant gases C03B37/01853Thermal after-treatment of preforms C03B37/01861Means for changing or stabilising the diameter or form of tubes or rods C03B37/01869Collapsing C03B37/01876Means for heating tubes or rods during or immediately prior to deposition C03B37/01884Means for supporting, rotating and translating tubes or rods being formed C03B37/01892Deposition substrates C03B37/02by drawing or extruding C03B37/0203Cooling non-optical fibres drawn or extruded from bushings, nozzles or orifices C03B37/0206by contacting of the fibres with liquid or mist C03B37/0209by means of a solid heat sink C03B37/0213by forced gas cooling C03B37/0216Solving the problem of disruption of drawn fibre C03B37/022from molten glass in which the resultant product consists of different sorts of glass or is characterised by shape C03B37/023Fibres composed of different sorts of glass C03B37/0235Thermal treatment of the fibre during the drawing process C03B37/025from reheated softened tubes, rods, fibres or filaments C03B37/0253Controlling or regulating C03B37/0256Drawing hollow fibres C03B37/026Drawing fibres reinforced with a metal wire or with other non-glass material C03B37/027Fibres composed of different sorts of glass C03B37/02709Polarisation maintaining fibres C03B37/02718Thermal treatment of the fibre during the drawing process C03B37/02727Annealing or re-heating C03B37/02736Means for supporting, rotating or feeding the tubes, rods, fibres or filaments to be drawn C03B37/02745Fibres having rotational spin around the central longitudinal axis C03B37/02754Solid fibres drawn from hollow preforms C03B37/02763Fibres having axial variations C03B37/02772shaping the preform lower end or bulb C03B37/02781Hollow fibres C03B37/0279Photonic crystal fibres or microstrructured optical fibres other than holey optical fibres C03B37/028Drawing fibre bundles C03B37/029Furnaces therefor C03B37/03Drawing means C03B37/032for glass optical fibres C03B37/035having means for deflecting or stripping-off fibres or for removing defective parts C03B37/04by using centrifugal force C03B37/041Transferring molten glass to the spinner C03B37/042starting from tubes, rods, fibres or filaments C03B37/044for producing fibres of at least two distinct glass compositions C03B37/045Construction of the spinner cups C03B37/047Selection of materials for the spinner cups C03B37/048Means for attenuating the spun fibres C03B37/05by projecting molten glass on a rotating body having no radial orifices C03B37/055by projecting onto and spinning off the outer surface of the rotating body C03B37/06by blasting or blowing molten glass C03B37/065starting from tubes, rods, fibres or filaments C03B37/07Controlling or regulating C03B37/075Manufacture of non-optical fibres or filaments consisting of different sorts of glass or characterised by shape C03B37/0753consisting of different sorts of glass C03B37/0756Hollow fibres C03B37/08Bushings C03B37/0805Manufacturing, repairing, or other treatment of bushings, nozzles or bushing nozzle plates C03B37/081Indirect-melting bushings C03B37/083Nozzles Bushing nozzle plates C03B37/085Feeding devices therefor C03B37/09electrically heated C03B37/091Indirect-resistance heating C03B37/092Direct-resistance heating C03B37/095Use of materials therefor C03B37/10Non-chemical treatment C03B37/12of fibres or filaments during winding up C03B37/14Re-forming fibres or filaments C03B37/15with heat application C03B37/16Cutting or severing