US3765852A - Apparatus for producing fibres from melts - Google Patents

Apparatus for producing fibres from melts Download PDF

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Publication number
US3765852A
US3765852A US00163752A US16375271A US3765852A US 3765852 A US3765852 A US 3765852A US 00163752 A US00163752 A US 00163752A US 16375271 A US16375271 A US 16375271A US 3765852 A US3765852 A US 3765852A
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US
United States
Prior art keywords
partition
melt
perforations
heater
fibres
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
US00163752A
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English (en)
Inventor
E Shule
O Shiman
N Bakanov
N Shevchenko
A Myagchenkov
M Hodakovsky
S Kutukov
E Rytvin
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Individual
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Individual
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
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Publication of US3765852A publication Critical patent/US3765852A/en
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    • 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
    • C03B37/08—Bushings, e.g. construction, bushing reinforcement means; Spinnerettes; Nozzles; Nozzle plates
    • C03B37/09—Bushings, e.g. construction, bushing reinforcement means; Spinnerettes; Nozzles; Nozzle plates electrically heated
    • C03B37/091—Indirect-resistance heating
    • 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
    • C03B37/08—Bushings, e.g. construction, bushing reinforcement means; Spinnerettes; Nozzles; Nozzle plates
    • C03B37/081—Indirect-melting bushings
    • 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
    • C03B37/08—Bushings, e.g. construction, bushing reinforcement means; Spinnerettes; Nozzles; Nozzle plates
    • C03B37/09—Bushings, e.g. construction, bushing reinforcement means; Spinnerettes; Nozzles; Nozzle plates electrically heated
    • C03B37/092—Direct-resistance heating

Definitions

  • ABSTRACT In the apparatus a cross partition serving as a heater and dividing the working chamber into a melting and a feeding zone has an upwardly convex shape, which together with an additional heater ensures intensification of the material melting process and the process of melt homogenization. This in turn permits a sharp increase in process efficiency and a reduction in the size of the structure.
  • the present invention relates to the manufacture of fibres from melts of thermoplastic materials, and more specifically to apparatus for producing fibres from the melts of such materials as glass, slags, minerals, etc.
  • the main disadvantage of the conventional apparatus for producing said fibres is the insufficient intensity of the glass melting process, as well as of the melt homogenation and degassing.
  • An object of the present invention is to eliminate the disadvantages of the conventional apparatus for producing fibres from melts.
  • Another object of the invention is to provide maximum heating of the melt surface layers in the feeding zone of the chamber, and to develop in these surface layers upward degassing and homogenizing melt flows.
  • the partition formed by the heater has an upwardly convex shape, and at least one additional heater is located under the latter partition.
  • the partition perforations most preferably are installed in the lower lying portions thereof.
  • FIG. 1 shows the apparatus for producing fibres from molten thermoplastic materials, in a section
  • FIG. 2 is a section taken along line 11-11 in H6. 1.
  • the apparatus comprises a housing 11 whose walls are heated by means of current conductors 2; mounted inside the chamber formed by housing 1 is a heater 3 made as a cross partition separating the chamber into an upper melting zone t and a lower feeding zone 5.
  • Perforations 6 for the melt penetration are made in the lower portions of the partition.
  • one additional plate heater 7 is mounted along the apparatus under the highest portion of the partition.
  • the inner heaters 3 and 7 are fed from the same current conductors 2.
  • the partition can also be made perforated all over its surface. In this case it is advisable to make the partition netted. Perforations 6 in the first-mentioned embodiment are made only along the lower edges of the partition, and they should naturally be wider as compared to the case when the partition is perforated all over its surface, so that the overflowing of the melt into the lower zone 5 of the chamber may be intensive enough. Disposition of the perforations along said edges of the partition enables maximum possible heating of the melt surface layer in chamber 5 to be generated by heater in the latter case, placed rather advantageously opposite perforations 6 below the partition should be netted elements 8 to provide for homogenation of the melt issuing from perforations 6.
  • thermoplastic material can be used for manufacturing fibres, such as glass, slags, minerals, etc.
  • thermoplastic material in the form of lumps, grains, etc. is continuously supplied into the upper, i.e., melting, zone 4 of the chamber of the apparatus.
  • the material melts, its melt overflowing through perforations 6 into the lower zone 5 of the chamber. Having issued from perforations 6 the melt then passes through the netted elements 8 being thereby homogenized.
  • heater 3 Since heater 3 has the form of an upwardly convex partition, the melt actively flows down the surface of heater 3, thus the beads of the unmelted glass are always practically in direct contact with heater 3. This intensifies the material melting process. Also, due to the convex shape of the partition the melt passing through the perforations flows down its inner surface in a thin layer from the centre to the periphery. Thus, the melt flows to the high-temperature zone in thin layers, and the volume of the lower part 5 of the chamber is filled with melt from the periphery.
  • melt surface layers As a result, optimum conditions are provided for overheating the melt surface layers, thus forming upward flows which intensify the process of the melt homogenation. Then the melt enters orifices 9 and issues therefrom in jets to be formed into fibres.
  • An apparatus for producing fibres from molten thermoplastic materials comprising: a housing; a heater in said housing disposed so as to form an upwardly convex cross partition; perforations in said cross partition serving to let through the melt; at least one additional heater located below said partition; and orifices arranged in the lower part of the housing and serving to form the fibres.

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  • 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)
  • Reinforced Plastic Materials (AREA)
  • Inorganic Fibers (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
US00163752A 1971-07-06 1971-07-19 Apparatus for producing fibres from melts Expired - Lifetime US3765852A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3160571 1971-07-06

Publications (1)

Publication Number Publication Date
US3765852A true US3765852A (en) 1973-10-16

Family

ID=10325649

Family Applications (1)

Application Number Title Priority Date Filing Date
US00163752A Expired - Lifetime US3765852A (en) 1971-07-06 1971-07-19 Apparatus for producing fibres from melts

Country Status (4)

Country Link
US (1) US3765852A (enrdf_load_stackoverflow)
DE (1) DE2133568A1 (enrdf_load_stackoverflow)
FR (1) FR2147837B1 (enrdf_load_stackoverflow)
GB (1) GB1301232A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3920429A (en) * 1974-05-28 1975-11-18 Owens Corning Fiberglass Corp Stream feeder for making glass fibers
US7194874B1 (en) * 1997-09-15 2007-03-27 Johns Manville Screen for fiberizing bushings and method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2018491C1 (ru) * 1992-03-12 1994-08-30 Виктор Федорович КИБОЛ Способ получения базальтового волокна

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3248191A (en) * 1965-03-04 1966-04-26 Owens Corning Fiberglass Corp Feeder for melting glass spheres for fiber drawing
US3465283A (en) * 1966-04-13 1969-09-02 Sealectro Corp Electrical plug contacts
US3479167A (en) * 1966-05-02 1969-11-18 Little Inc A Apparatus for making glass fibers
US3485851A (en) * 1966-04-19 1969-12-23 Kali Chemie Ag Process of producing therapeutically valuable isovaleric acid esters and products

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3248191A (en) * 1965-03-04 1966-04-26 Owens Corning Fiberglass Corp Feeder for melting glass spheres for fiber drawing
US3465283A (en) * 1966-04-13 1969-09-02 Sealectro Corp Electrical plug contacts
US3485851A (en) * 1966-04-19 1969-12-23 Kali Chemie Ag Process of producing therapeutically valuable isovaleric acid esters and products
US3479167A (en) * 1966-05-02 1969-11-18 Little Inc A Apparatus for making glass fibers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3920429A (en) * 1974-05-28 1975-11-18 Owens Corning Fiberglass Corp Stream feeder for making glass fibers
US7194874B1 (en) * 1997-09-15 2007-03-27 Johns Manville Screen for fiberizing bushings and method
US7194875B2 (en) * 1997-09-15 2007-03-27 Johns Manville Fiberizing bushing with improved screen

Also Published As

Publication number Publication date
GB1301232A (enrdf_load_stackoverflow) 1972-12-29
DE2133568A1 (de) 1973-01-25
FR2147837A1 (enrdf_load_stackoverflow) 1973-03-11
FR2147837B1 (enrdf_load_stackoverflow) 1976-04-02

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