EP0024400A1 - Abschottung von hohlglasfasern mittels eingeschmolzener materialien - Google Patents
Abschottung von hohlglasfasern mittels eingeschmolzener materialienInfo
- Publication number
- EP0024400A1 EP0024400A1 EP19800900402 EP80900402A EP0024400A1 EP 0024400 A1 EP0024400 A1 EP 0024400A1 EP 19800900402 EP19800900402 EP 19800900402 EP 80900402 A EP80900402 A EP 80900402A EP 0024400 A1 EP0024400 A1 EP 0024400A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fiber
- hollow glass
- wall material
- hollow
- aerosol
- 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.)
- Withdrawn
Links
- 239000003365 glass fiber Substances 0.000 title claims abstract description 12
- 238000007789 sealing Methods 0.000 title abstract description 8
- 239000012768 molten material Substances 0.000 title 1
- 239000000463 material Substances 0.000 claims abstract description 18
- 239000000835 fiber Substances 0.000 claims abstract description 13
- 239000011521 glass Substances 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 10
- 239000000443 aerosol Substances 0.000 claims abstract description 8
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 3
- 239000011707 mineral Substances 0.000 claims description 3
- 238000010009 beating Methods 0.000 claims 2
- 239000007787 solid Substances 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 238000009987 spinning Methods 0.000 abstract description 6
- 239000012510 hollow fiber Substances 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 2
- 239000011324 bead Substances 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 abstract 1
- 239000000725 suspension Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 6
- 239000000047 product Substances 0.000 description 4
- 238000000638 solvent extraction Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000112 cooling gas Substances 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007380 fibre production Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
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
- C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
- C03B37/022—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from molten glass in which the resultant product consists of different sorts of glass or is characterised by shape, e.g. hollow fibres, undulated fibres, fibres presenting a rough surface
-
- 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
- C03B37/075—Manufacture of non-optical fibres or filaments consisting of different sorts of glass or characterised by shape, e.g. undulated fibres
- C03B37/0756—Hollow fibres
Definitions
- Hollow glass threads are a well-known semi-finished product, for example to produce lightweight laminates by embedding them in synthetic resin.
- Today, these products still suffer from the lack of absorbing water and other things if they are not sealed with considerable effort on their side areas.
- sealing is not considered satisfactory in every case. All injuries to the sealing surface of a product, which can also be caused by aging, lead to an opening of the fiber, so that water can in turn penetrate there. Emptying the fiber is practically impossible.
- This invention improves the sealing (sealing) of the hollow glass fiber by using glass or other mineral substances for the bulkheads, which are known to completely prevent penetration.
- the process of installing the bulkheads is also cheaper in several ways.
- the partitioning is carried out during the spinning process. On the one hand, there is no additional effort (time), on the other hand, no significant increase in investment costs is necessary.
- the hollow glass fiber is given more or less regular spacing of bulkheads made of mineral material, primarily glass, which, as is also known from glass, completely prevents the penetration of water, other liquids and gases, in particular water gas.
- the invention solves the problem of introducing these bulkheads into the fiber.
- an aerosol under pressure of 10 to 500 mm water column
- the supporting gas in which the wall material is suspended, that is, in which its rate of descent (with aerosol at rest) is reduced.
- the support gas can continuously drive the wall material into the liquid gas cone of the spinning system.
- the diameter of the wall material is adapted to the inside diameter of the hollow fiber. Today, for example, this is from 0.04 to 0.25 mm.
- the aerosol maintains its temperature so low that on the one hand the wall material (such as the glass balls) remains in the desired state, on the other hand the properties of the aerosol are not undesirably changed.
- a cannula is used as a feed line for driving in the wall material (1), the maximum inside diameter of which is not significantly larger than that of the hollow thread to be manufactured (2).
- the cannula is insulated against heating (3) j because it has to penetrate the warm zones of the spinning system.
- an insulating tube with low thermal conductivity is to be used for this purpose, in which a double-walled, metallic tube (4) is stored.
- the cannula (1) is inserted on the axis of this arrangement, so that a cooling liquid or a cooling gas (5) can take over the heat transfer.
- the sketch shows this technique, which is known per se; to understand the process.
- the materials driving into the liquid glass cone absorb the necessary heat to connect to the wall of the thread, possibly supported by a downstream heating section.
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)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2904705 | 1979-02-08 | ||
| DE19792904705 DE2904705A1 (de) | 1979-02-08 | 1979-02-08 | Abschottung von hohlglasfasern mittels eingeschmolzener materialien |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0024400A1 true EP0024400A1 (de) | 1981-03-11 |
Family
ID=6062416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19800900402 Withdrawn EP0024400A1 (de) | 1979-02-08 | 1980-08-25 | Abschottung von hohlglasfasern mittels eingeschmolzener materialien |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0024400A1 (enrdf_load_stackoverflow) |
| DE (1) | DE2904705A1 (enrdf_load_stackoverflow) |
| WO (1) | WO1980001684A1 (enrdf_load_stackoverflow) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3918360A1 (de) * | 1988-06-11 | 1990-02-08 | Bundesrep Deutschland | Spinnduese und verfahren zur herstellung von fadenfoermigen abgeschotteten hohlfasern |
| FR2698200B1 (fr) * | 1992-11-13 | 1995-02-03 | Dominitz Jacques Charles | Procédé de fabrication pour objet porteur message. |
| DE4308010A1 (de) * | 1993-03-13 | 1994-09-15 | Schott Glaswerke | Verfahren zur Herstellung dickenmodifizierter Endlosfasern aus Glas, insbesondere dickenmodifizierter Verstärkungsfasern für faserverstärkte Verbundwerkstofe |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE121318C (enrdf_load_stackoverflow) * | 1900-05-13 | 1901-06-19 | ||
| US2269459A (en) * | 1937-08-11 | 1942-01-13 | Owens Corning Fiberglass Corp | Tubular fiber |
| US2571457A (en) * | 1950-10-23 | 1951-10-16 | Ladisch Rolf Karl | Method of spinning filaments |
| US2612679A (en) * | 1950-10-23 | 1952-10-07 | Ladisch Rolf Karl | Filaments containing fillers |
| DE1205660B (de) * | 1962-08-25 | 1965-11-25 | Siemens Ag | Verfahren zum direkten Ziehen von Glasrohren aus einer Glasschmelze |
| US3421873A (en) * | 1966-03-17 | 1969-01-14 | Jerome A Burgman | Method and apparatus for producing an intermittently hollow glass filament |
| FR1572274A (enrdf_load_stackoverflow) * | 1968-03-14 | 1969-06-27 | ||
| DE2212350B2 (de) * | 1972-03-15 | 1974-10-10 | Hermann M. 6000 Frankfurt Timm | Eine Füllung enthaltender Hohlfaden aus transparentem Kunststoff |
| DE2452600A1 (de) * | 1974-11-06 | 1976-05-13 | Helmut Lehle | Verfahren zur herstellung von metallischen roehrchen und innenverspiegelten hohlfasern |
| DE2555899C2 (de) * | 1975-12-12 | 1987-04-30 | OKALUX Kapillarglas GmbH, 8772 Marktheidenfeld | Verfahren zur Herstellung von Hohlfasern aus anorganischen schmelzfähigen Materialien sowie Vorrichtung zur Durchführung des Verfahrens |
| DE2652690A1 (de) * | 1976-11-19 | 1978-05-24 | Sandwich Profil Gmbh | Verfahren und vorrichtung zum herstellen von fadenfoermigen kapillaren |
-
1979
- 1979-02-08 DE DE19792904705 patent/DE2904705A1/de active Granted
-
1980
- 1980-02-04 WO PCT/DE1980/000013 patent/WO1980001684A1/de unknown
- 1980-08-25 EP EP19800900402 patent/EP0024400A1/de not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| See references of WO8001684A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1980001684A1 (en) | 1980-08-21 |
| DE2904705A1 (de) | 1981-01-29 |
| DE2904705C2 (enrdf_load_stackoverflow) | 1989-10-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Designated state(s): FR |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 19810219 |