GB1212355A - Improvements in or relating to a method of manufacturing filaments - Google Patents

Improvements in or relating to a method of manufacturing filaments

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Publication number
GB1212355A
GB1212355A GB44659/67A GB4465967A GB1212355A GB 1212355 A GB1212355 A GB 1212355A GB 44659/67 A GB44659/67 A GB 44659/67A GB 4465967 A GB4465967 A GB 4465967A GB 1212355 A GB1212355 A GB 1212355A
Authority
GB
United Kingdom
Prior art keywords
filament
boron
jet
particles
molten
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
GB44659/67A
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.)
Raytheon Technologies Corp
Original Assignee
United Aircraft 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 United Aircraft Corp filed Critical United Aircraft Corp
Publication of GB1212355A publication Critical patent/GB1212355A/en
Expired legal-status Critical Current

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    • 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
    • C04B35/62227—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products obtaining fibres
    • C04B35/62272—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products obtaining fibres based on non-oxide ceramics
    • C04B35/62277—Fibres based on carbides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/005—Continuous casting of metals, i.e. casting in indefinite lengths of wire
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01—Manufacture of glass fibres or filaments
    • C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
    • C03B37/0203—Cooling non-optical fibres drawn or extruded from bushings, nozzles or orifices
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01—Manufacture of glass fibres or filaments
    • C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
    • C03B37/0203—Cooling non-optical fibres drawn or extruded from bushings, nozzles or orifices
    • C03B37/0206—Cooling non-optical fibres drawn or extruded from bushings, nozzles or orifices by contacting of the fibres with liquid or mist
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01—Manufacture of glass fibres or filaments
    • C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
    • C03B37/0203—Cooling non-optical fibres drawn or extruded from bushings, nozzles or orifices
    • C03B37/0213—Cooling non-optical fibres drawn or extruded from bushings, nozzles or orifices by forced gas cooling, i.e. blowing or suction
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Abstract

1,212,355. Filaments; coating with glass. UNITED AIRCRAFT CORP. 2 Oct., 1967 [17 Oct., 1966], No. 44659/67. Headings C1A and C1M. [Also in Divisions B2, B3 and C7] In a method of manufacturing a filament of metal or metal compound from molten material the molten material is expelled through an orifice in a downwardly directed jet, the jet being electrically charged and being adjacent to, or surrounded by, one or more electrodes which are electrically charged opposite to the charge on the jet to create an electrostatic field. A heat exchange medium is passed into the electrostatic field and the velocity and volume of the medium and the voltage in the electrical charges in the jet and electrodes are correlated to maintain a rate of cooling of the jet between 0À001 to 0-04 calories per second per square centimetre per degree centrigrade. The filament may be produced from molten nickel, chromium stainless steel, beryllium, boron, titanium, aluminium, iron, tin, or of aluminium oxide, aluminium oxide with magnesium oxide and/or silicon dioxide, or aluminium oxide with calcium oxide and silicon dioxide. The filament may be treated to coat it, or form an alloy or compound, by supplying a reactant to the surface of the filament. Examples described include the formation of a molten boron jet which is reacted with graphite particles or methane to produce a boron carbide filament, the formation of a molten titanium (boron) jet which is reacted with boron (titanium) particles to produce a titanium boride filament, the formation of a molten boron jet which is partly reacted with propane/boron trichloride to give a boron carbide-coated boron filament which is subsequently coated with silica from a finely powdered quartz aerosol (Example 3), boron coated with silica or carbon and chromium or nickel coated with a silica powder to form a glass coating. Fig. 1 shows the filament being cooled by a horizontal gas flow of an inert or reactant gas, the filament being retained in position in the gas flow by electrostatic forces created by a voltage across the filament and a metal porous tube from which the gas flows. 'In an alternative embodiment (Fig. 2, not shown), a corona discharge is formed between the filament and surrounding electrodes that causes a cooling convection current in the surrounding gas or air. In a further embodiment (Fig. 3, not shown), a corona discharge is formed and a stream of flux particles are fed into its field and the particles are carried to the surface of the filament and absorb heat therefrom. The particles may be left on to form a coating or may be chemically removed. The flux particles may be added to stop a reaction at a given time. Flux materials used are Al 2 .O 3 , Si.O 2 , Mg.O, Mg.O+Al 2 0 3 , Ca.O +Mg.O, Ca.0+Al 2 0 3 , Na 2 O + Si.0 2 , Mg.O + Si.0 2 , Mg.O+Ti.O 2 , Pb.O + SiO 2 and Al 2 0 3 +SiO 2 .
GB44659/67A 1966-10-17 1967-10-02 Improvements in or relating to a method of manufacturing filaments Expired GB1212355A (en)

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US58700966A 1966-10-17 1966-10-17

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US (1) US3461943A (en)
DE (1) DE1583715C3 (en)
FR (1) FR1551091A (en)
GB (1) GB1212355A (en)
SE (1) SE327787B (en)

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US3834847A (en) * 1970-01-16 1974-09-10 Du Pont Open cell foam device for gas distribution in filament quenching chimneys
US3824052A (en) * 1971-04-15 1974-07-16 Deering Milliken Res Corp Apparatus to produce nonwoven fabric
US3856513A (en) * 1972-12-26 1974-12-24 Allied Chem Novel amorphous metals and amorphous metal articles
USRE32925E (en) * 1972-12-26 1989-05-18 Allied-Signal Inc. Novel amorphous metals and amorphous metal articles
FR2376711A1 (en) * 1977-01-10 1978-08-04 Michelin & Cie CONTINUOUS CASTING WIRE MANUFACTURING PLANT
CA1102980A (en) * 1978-03-13 1981-06-16 Pulp And Paper Research Instittue Of Canada Electrostatic fiber spinning from polymeric fluids
US4211270A (en) * 1978-07-28 1980-07-08 Kennecott Copper Corporation Method for continuous casting of metallic strands at exceptionally high speeds
US4736789A (en) * 1978-07-28 1988-04-12 Kennecott Corporation Apparatus and method for continuous casting of metallic strands at exceptionally high speeds using an oscillating mold assembly
EP0173797A1 (en) * 1981-06-10 1986-03-12 Olin Corporation An apparatus and process for cooling and solidifying continuous or semi-continuously cast material
US4441542A (en) * 1981-06-10 1984-04-10 Olin Corporation Process for cooling and solidifying continuous or semi-continuously cast material
CA1191015A (en) * 1981-09-29 1985-07-30 Tsuyoshi Masumoto Method of manufacturing thin metal wire
US4557742A (en) * 1984-07-02 1985-12-10 Polaroid Corporation Polarized optical fiber and method of forming same
US7626122B2 (en) * 2006-08-25 2009-12-01 David Levine Lightweight composite electrical wire
IL231729B (en) 2014-03-26 2018-06-28 Umzen Ltd Nut and method for fixing an object to a building structure
CN107324816A (en) * 2017-07-25 2017-11-07 云南省科学技术院 The preparation method and Preparation equipment of a kind of high temperature resistant high purity aluminium oxide cotton

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DE1583715C3 (en) 1974-10-10
US3461943A (en) 1969-08-19
DE1583715A1 (en) 1970-08-20
SE327787B (en) 1970-08-31
DE1583715B2 (en) 1973-06-28
FR1551091A (en) 1968-12-27

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PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee