US3634055A - Method and apparatus for production of fibers from thermoplastic materials, particularly glass fibers - Google Patents

Method and apparatus for production of fibers from thermoplastic materials, particularly glass fibers Download PDF

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Publication number
US3634055A
US3634055A US840618A US3634055DA US3634055A US 3634055 A US3634055 A US 3634055A US 840618 A US840618 A US 840618A US 3634055D A US3634055D A US 3634055DA US 3634055 A US3634055 A US 3634055A
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US
United States
Prior art keywords
set forth
annular
filaments
fibers
peripheral portion
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 - Lifetime
Application number
US840618A
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English (en)
Inventor
Jean Paymal
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.)
Compagnie de Saint Gobain SA
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Compagnie de Saint Gobain SA
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Filing date
Publication date
Application filed by Compagnie de Saint Gobain SA filed Critical Compagnie de Saint Gobain SA
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Publication of US3634055A publication Critical patent/US3634055A/en
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Classifications

    • 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
    • C03B37/04—Manufacture of glass fibres or filaments by using centrifugal force, e.g. spinning through radial orifices; Construction of the spinner cups therefor
    • C03B37/05—Manufacture of glass fibres or filaments by using centrifugal force, e.g. spinning through radial orifices; Construction of the spinner cups therefor by projecting molten glass on a rotating body having no radial orifices

Definitions

  • An C03b 37/06 annular burner below the disc-shaped body serves as a source
  • Field of Search l8/2.5 RR of hot gas under pressure which is blown upwardly through the 2.6, 85 R; 65/6, 8, 14, 15,7; 264/176, 8, 1761- orifices to product the material into filaments, which are thereafter drawn out into fine fibers by an annular gaseous
  • References Cited blast directed radically and substantially horizontally above UNITED STATES PATENTS the peripheral portion of the body to turn down the substan- 2,609,566 9/1952 slayter et 65/6 tially vertical filaments while attenuating them, which is followed by the withdrawal thereof.
  • the present invention relates to the production of fibers from mineral or organic materials in the viscous state, and in particular glass fibers.
  • the process in accordance with the invention consists in bringing the material to be transformed into fibers onto the upper part of a body of generally discoidal shape rotating about a vertical axis, and with orifices on a peripheral zone thereof, over which passes a sheet produced by the supply of said material under the action of centrifugal force, and whereat jets of gas escaping from said orifices act on this sheet of material to project it in the form of filaments from the upper part of the rotating body, which are then drawn out into fibers.
  • the attenuation or drawing out of the filaments into fibers is obtained by subjecting said filaments to the action of hot gas or vapor jets.
  • These jets of hot gas or steam are preferably directed perpendicularly to the direction of the filaments when they leave the orifices.
  • the filaments projected vertically from the orifices of the rotating body are turned down substantially horizontally by the jet of hot gas which effects their attenuation, and then the fibers derived from the filaments are directed downwardly by ajet of air or steam which effects their evacuation or withdrawal.
  • the apparatus in accordance with the invention comprises: a disc rotating about its vertical axis, this disc having an annular groove or gutter at one part thereof into which the viscous material drops in the form of one or several threads, and orifices at another part thereof, namely, in the peripheral zone; an annular burner coaxial with the axis of the disc and below the latter, wherefrom the hot gases produced by the burner discharge through said orifices; an annular blower above said disc arranged coaxially therewith for producing a gaseous blast acting on the fibers to turn them down substantially horizontally, and a blower ring beyond said disc and arranged coaxially therewith for withdrawing the produced fibers.
  • the peripheral portion of the disc containing the orifices rises upwardly towards the top and forms a truncated conical part whose angle at the apex is directed downwardly to the bottom.
  • the fluid under pressure may be advantageously produced by an annular burner which is integral with the rotating body.
  • the apparatus shown in the drawing comprises a disc 1 integral with a hollow vertical shaft 2, which is rotated by a motor, (not shown), through the intermediary of belts 3 and a pulley 4.
  • Shaft 2 rotates in bearings 5 mounted on the fixed frame or part 6.
  • Disc 1 is provided with an annular channel, trough or gutter 7 into which falls one or more streams 8 ofthe viscous material to be transformed into fibers.
  • Disc 1 is also provided with orifices 10 in its peripheral zone 9 of truncated conical shape, the axes ofwhich are directed substantially vertically.
  • an annular burner 11 integral with a cylindrical casing 12, arranged coaxially with shaft 2, and the bottom 13, of which is fastened to a shaft 14 which itself is integral with the fixed part or frame 6.
  • the burner is supplied through space 15 which is left open between fixed shaft 14 and rotary shaft 2.
  • Zigzag joints l6 and 17 are provided on the lower surface of disc 1 in order to improve the tightness against leakage of the combustion gases of burner 11.
  • annular blower or burner 18 Arranged coaxially with the disc and from above it, are arranged an annular blower or burner 18 on one side, and a blower ring 19 on the other side, i.e., the former is within the area of the orifices 10 of the peripheral zone and the latter is beyond said orifices.
  • the viscous material which fills the annular channel 7 is thrown therefrom by the effect of centrifugal force and forms a sheet which reaches the peripheral zone 9 of the disc and passes over orifices l0 whence it is projected in the form of filaments 20 by the gas issuing from burner 11.
  • These filaments are then subjected to the action of the annular jet discharging from blower 18, which turns them substantially horizontally while drawing them out into fibers.
  • the latter are then subjected to the action of the jet discharging from blower ring 19 which effect their withdrawal in a downward direction.
  • the method of producing fibers from a hardenable thermoplastic material in a viscous state which comprises a. dropping at least one stream of said material onto the inner radial portion of the upper surface of a discoidalshaped body, rotating rapidly about a vertical axis, wherefrom the material is thrown outwardly in sheet form by centrifugal force towards the outer perforated peripheral portion of said upper surface,
  • the viscous thermoplastic material is a molten vitreous composition for producing glass fibers therefrom.
  • An apparatus for producing fine fibers from a hardenable thermoplastic material in a viscous state comprising,
  • a. a disc-shaped body with means to rotate it rapidly around a vertical axis, and having an inner portion and an outer peripheral portion,
  • means for attenuating said filaments into fine fibers comprising blowing means for directing transversely a hot gaseous blast outwardly in radial directions across the filaments projected upwardly from said sheet of centrifugally flowing viscous material.
  • said discshaped body comprises an annular trough at said inner portion of the upper face of said body for receiving at least one stream of the viscous material.
  • annular burner is integral with said rotary disc-shaped body.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
  • Nonwoven Fabrics (AREA)
  • Reinforced Plastic Materials (AREA)
US840618A 1968-07-10 1969-07-10 Method and apparatus for production of fibers from thermoplastic materials, particularly glass fibers Expired - Lifetime US3634055A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR158653 1968-07-10

Publications (1)

Publication Number Publication Date
US3634055A true US3634055A (en) 1972-01-11

Family

ID=8652370

Family Applications (1)

Application Number Title Priority Date Filing Date
US840618A Expired - Lifetime US3634055A (en) 1968-07-10 1969-07-10 Method and apparatus for production of fibers from thermoplastic materials, particularly glass fibers

Country Status (14)

Country Link
US (1) US3634055A (xx)
AT (1) AT297963B (xx)
BE (1) BE735877A (xx)
BR (1) BR6910591D0 (xx)
CH (1) CH506637A (xx)
DE (1) DE1934561C3 (xx)
DK (1) DK132272C (xx)
ES (1) ES369332A1 (xx)
FI (1) FI49817C (xx)
FR (1) FR1583071A (xx)
GB (1) GB1244126A (xx)
NL (1) NL164255C (xx)
NO (1) NO125720B (xx)
SE (1) SE353304B (xx)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3874886A (en) * 1973-03-30 1975-04-01 Saint Gobain Fiber toration; method, equipment and product
US4015963A (en) * 1973-03-30 1977-04-05 Saint-Gobain Industries Method and apparatus for forming fibers by toration
US4218411A (en) * 1976-05-04 1980-08-19 Price Harold A Method and apparatus for producing particulate sulfur

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2609566A (en) * 1948-12-31 1952-09-09 Owens Corning Fiberglass Corp Method and apparatus for forming fibers
US2793395A (en) * 1954-02-15 1957-05-28 Charles Richardson Corp Apparatus for forming mineral wool
US2896256A (en) * 1958-03-06 1959-07-28 Sealtite Insulation Mfg Corp Apparatus for manufacturing mineral wool and the like

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2609566A (en) * 1948-12-31 1952-09-09 Owens Corning Fiberglass Corp Method and apparatus for forming fibers
US2793395A (en) * 1954-02-15 1957-05-28 Charles Richardson Corp Apparatus for forming mineral wool
US2896256A (en) * 1958-03-06 1959-07-28 Sealtite Insulation Mfg Corp Apparatus for manufacturing mineral wool and the like

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3874886A (en) * 1973-03-30 1975-04-01 Saint Gobain Fiber toration; method, equipment and product
US3885940A (en) * 1973-03-30 1975-05-27 Marcel Levecque Fiber toration; method and equipment
US4015963A (en) * 1973-03-30 1977-04-05 Saint-Gobain Industries Method and apparatus for forming fibers by toration
US4218411A (en) * 1976-05-04 1980-08-19 Price Harold A Method and apparatus for producing particulate sulfur

Also Published As

Publication number Publication date
NL164255B (nl) 1980-07-15
NL164255C (nl) 1980-12-15
SE353304B (xx) 1973-01-29
FI49817B (xx) 1975-06-30
DE1934561C3 (de) 1979-10-11
DK132272B (da) 1975-11-17
NL6910388A (xx) 1970-01-13
AT297963B (de) 1972-04-25
ES369332A1 (es) 1971-06-01
DE1934561A1 (de) 1970-01-15
DK132272C (da) 1976-04-20
CH506637A (fr) 1971-04-30
BR6910591D0 (pt) 1973-01-25
DE1934561B2 (de) 1979-02-22
FI49817C (fi) 1975-10-10
NO125720B (xx) 1972-10-23
GB1244126A (en) 1971-08-25
BE735877A (xx) 1970-01-09
FR1583071A (xx) 1969-10-17

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