WO2005113462A1 - Filiere pour la fabrication de filaments notamment de verre et son installation de fibrage - Google Patents
Filiere pour la fabrication de filaments notamment de verre et son installation de fibrage Download PDFInfo
- Publication number
- WO2005113462A1 WO2005113462A1 PCT/FR2005/050217 FR2005050217W WO2005113462A1 WO 2005113462 A1 WO2005113462 A1 WO 2005113462A1 FR 2005050217 W FR2005050217 W FR 2005050217W WO 2005113462 A1 WO2005113462 A1 WO 2005113462A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- plate
- die
- grid
- die according
- glass
- Prior art date
Links
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
- C03B37/08—Bushings, e.g. construction, bushing reinforcement means; Spinnerettes; Nozzles; Nozzle plates
Definitions
- the invention relates to a fiberizing installation delivering filaments, in particular glass, and relates more particularly to one of the elements of the installation, the die.
- a fiberizing installation comprises a glass block (flow block) which receives molten glass from a channel connected to the furnace in which the glass is melted, an intermediate block (bushing block) and a bushing.
- the die is provided in its upper part with a grid which makes it possible to distribute the flow rate of the glass supplying said die, and at the bottom of a plate provided with a multitude of orifices from which flows the molten glass to be drawn in a multiplicity of filaments.
- These filaments are gathered in at least one ply which converges towards an assembly device to form at least one wick and be, for example, wound.
- the wick can also be cut (chopped strands) or projected onto a carpet (mats with continuous strands).
- the products obtained are used mainly in various reinforcement applications.
- a manufacturing plant a plurality of fiberizing plants are arranged next to each other. Upstream, the molten glass comes from an oven, and flows through a main channel of refractory material to be distributed according to a common type of configuration, in two transverse channels in the manner of a rod. T.
- This T bar is usually called fore-body, and under its bottom is arranged the plurality of fiberizing installations.
- the defect observed in such a configuration and therefore such a distribution is the presence of a hot zone at the point where the hottest vein of the glass arrives, that is to say at the intersection of the bar of the T which is called the upstream part of the body, and therefore at the level of the first two fiber-drawing installations arranged on each side of this intersection; and on the contrary, at the ends of the T bar, on the two downstream sides of the fore-body, the glass vein is cooler, the cooling being accentuated by the end wall of the channel of the fore-body.
- the temperature of the glass arriving in each fiberizing installation is therefore different depending on the position of the fiberizing installation under the fore-body and according to the geometric particularity of this fore-body.
- this thermal imbalance acts on the flow of glass flowing from the bottom of the die of the fiberizing installation, and consequently modifies the titer of the filaments from one fiberizing installation to another, and even modifies the titer of two wicks obtained at the same time by the same fiberizing installation (a difference of 5% can be observed).
- this drawback makes the quality of the titer of the wicks uncertain, sometimes generating interruptions in the fiberizing process, and consequently loss of time and material.
- the die is specially designed in comprising two spaced grids which are arranged above the bottom of the die, the grids being partly closed at different places according to their arrangement opposite.
- the die has a height of about 4 cm, with a height separating the bottom of the die from the highest grid of about 2.5 cm. This has the disadvantages of considerably increasing the amount of metal or of precious alloy constituting the die, to require more electrical energy to heat it, and to increase the pressure drop in the glass supply to the bottom of the die.
- the object of the invention is therefore to provide a simple means, adaptable to any already existing fiberizing installation which makes it possible to obstruct the progression of the hot vein of the molten glass in order to push it back towards the cold vein so as to obtain a homogeneous temperature over the entire bottom of the die through which the filaments are stretched.
- the die for the manufacture of filaments in particular of glass comprising a grid on one of its faces through which is intended to arrive a molten material, such as glass, and on its opposite face, a bottom provided with a multitude of orifices through which is intended to flow the molten material, is characterized in that it comprises a closure plate attached and made integral with part of the total area of the grid at the point of arrival of the hottest vein of the fusion material, this plate having an area smaller than that of the grid and having a shape adapted to the shape of the hottest molten material casting.
- adapted form is intended to mean a form whose periphery best adapts to the closed line delimiting the hottest zone of the material but may not correspond strictly to this line.
- the closing plate plays a role of distribution means of the molten material, such as glass, in the die at the point of arrival of the hottest vein in order to force this hotter glass to mix with the cooler glass to homogenize the temperature of the glass at the bottom of the die.
- This surface plate adapted to the hottest area of the material pouring is thus of limited surface area, requiring for its manufacture only the quantity of material just adequate.
- the advantage of the device of the invention is that the plate is defined, cut to the desired dimensions and welded to the grid when the die is already completely constructed and packaged in its refractory material. This realization can therefore be done just before the establishment of the die at the location of the fore body for which it is intended.
- the plate is positioned off-center with respect to the entire surface of the grid. For example, if the fiberizing installation is placed under a body in which the glass flows from left to right, the closing plate will be placed on the left side of the grid of the die.
- the plate is made integral with the upper face of the grid intended to receive the inlet flow of the molten material.
- the plate is made integral by welding at its periphery and discontinuously. It can for example be made integral according to a plurality of welding points, or else according to at least two opposite lateral lines.
- the plate can have a rectangular, oval, diamond shape.
- the plate has a thickness of between 0.2 and 0.5 mm adapted to the desired corrective effects. It is made of the same metal or alloy as the die itself to resist the aggression of the molten material, in particular glass. Finally, it is possible to envisage that the plate is full, or else pierced with orifices of differentiated diameters relative to the openings of the grid of the die.
- FIG. 1 schematically illustrates a fiberizing installation 1 comprising a glass intake block 10 which receives molten glass 1a, coming from the front body 1b, an intermediate block 11 in which the glass flows, and a die 12 into which the glass arrives.
- the die 12 has a height of about 50 mm.
- FIG. 2 shows a detailed view of the upper part of the die towards which the glass is intended to flow from the intermediate block.
- the grid 13 arranged in the upper part of the die is provided on its external face 13a with a plate 17 which is attached and made integral with part of the surface of the grid to close off part of the openings 14
- This cover plate is made of the same material as that of the die, in platinum or platinum alloyed with rhodium. It has a thickness of between 0.2 and 0.5 mm. Its area, shape and positioning relative to the total area of the grid 13 depend on the place at which the hottest area for casting the molten material is located. This is indeed where the plate should be positioned to divert the hottest glass towards the colder glass in order to homogenize the final temperature of the glass flowing through the nipples 16.
- the plate 17 has a shape whose contour is best suited to the closed line delimiting the hottest glass casting zone.
- the plate 17 can be full (FIG. 3), or else pierced with orifices 17c of diameters differentiated with respect to the openings 14 of the grid of the die (FIG. 4). It can have various shapes which are adapted to the shape of the hottest glass flow: rectangular, oval, diamond-shaped ...
- the plate 17 is fixed to the grid by welding at its periphery and in a discontinuous manner, either at several points 17a ( Figure 3), either along portions of lines 17b ( Figure 4) and preferably on two opposite sides.
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)
- Manufacture, Treatment Of Glass Fibers (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05748530A EP1748963A1 (fr) | 2004-05-14 | 2005-04-07 | Filiere pour la fabrication de filaments notamment de verre et son installation de fibrage |
MXPA06013214A MXPA06013214A (es) | 2004-05-14 | 2005-04-07 | Boquilla para la manufactura de filamentos, especialmente filamentos de vidrio, y su instalacion de fibrado. |
US11/568,617 US20070227195A1 (en) | 2004-05-14 | 2005-04-07 | Die For Producing Filaments, In Particular Glass Filaments And The Fibre Drawing System Thereof |
CA002566135A CA2566135A1 (fr) | 2004-05-14 | 2005-04-07 | Filiere pour la fabrication de filaments notamment de verre et son installation de fibrage |
BRPI0510549-8A BRPI0510549A (pt) | 2004-05-14 | 2005-04-07 | fieira para a fabricação de filamentos notadamente de vidro e instalação de formação de fibra |
RU2006144462/03A RU2373159C2 (ru) | 2004-05-14 | 2005-04-07 | Фильера для производства волокон, в частности стекловолокон, и волокнообразующая установка |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0405310A FR2870232B1 (fr) | 2004-05-14 | 2004-05-14 | Filiere pour la fabrication de filaments notamment de verre et son installation de fibrage |
FR0405310 | 2004-05-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005113462A1 true WO2005113462A1 (fr) | 2005-12-01 |
Family
ID=34945585
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2005/050217 WO2005113462A1 (fr) | 2004-05-14 | 2005-04-07 | Filiere pour la fabrication de filaments notamment de verre et son installation de fibrage |
Country Status (9)
Country | Link |
---|---|
US (1) | US20070227195A1 (fr) |
EP (1) | EP1748963A1 (fr) |
CN (1) | CN1953940A (fr) |
BR (1) | BRPI0510549A (fr) |
CA (1) | CA2566135A1 (fr) |
FR (1) | FR2870232B1 (fr) |
MX (1) | MXPA06013214A (fr) |
RU (1) | RU2373159C2 (fr) |
WO (1) | WO2005113462A1 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2922884A1 (fr) * | 2007-10-29 | 2009-05-01 | Saint Gobain Technical Fabrics | Blocs de reception d'une matiere fondue, notamment du verre, et installation de fibrage pourvue de tels blocs |
US7980099B2 (en) | 2007-03-15 | 2011-07-19 | Ocv Intellectual Capital, Llc | Multiple alloy bushing assembly |
US8001807B2 (en) | 2006-12-14 | 2011-08-23 | Ocv Intellectual Capital, Llc | Palladium screens for bushing assembly and method of using |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080141727A1 (en) * | 2006-12-14 | 2008-06-19 | Sullivan Timothy A | Refractory system for bushing assembly |
US8006519B2 (en) | 2007-04-10 | 2011-08-30 | Johns Manville | Fiberizing bushing with different size tips |
ES2725531T3 (es) * | 2011-05-09 | 2019-09-24 | Umicore Ag & Co Kg | Unidad de hilera para fabricar fibras de material mineral fundido |
JP2023036310A (ja) * | 2021-09-02 | 2023-03-14 | 日本電気硝子株式会社 | ガラス繊維の製造装置、及びガラス繊維の製造方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3988135A (en) * | 1975-07-28 | 1976-10-26 | Kaiser Glass Fiber Corporation | Assembly for the drawing of glass fibers |
JPH1179779A (ja) * | 1997-09-02 | 1999-03-23 | Nippon Electric Glass Co Ltd | ガラス繊維製造用紡糸炉 |
US5928402A (en) * | 1997-08-04 | 1999-07-27 | Owens Corning Fiberglas Technology, Inc. | Multi-screen system for mixing glass flow in a glass bushing |
US5935291A (en) * | 1997-10-29 | 1999-08-10 | Ppg Industries Ohio, Inc. | Bushings and fiber forming assemblies |
US20030205067A1 (en) * | 1997-09-15 | 2003-11-06 | Johns Manville International, Inc. | Screen for fiberizing bushings |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3779728A (en) * | 1969-12-12 | 1973-12-18 | J Hansen | High temperature - high strength alloy glass fiber forming bushing |
US4612027A (en) * | 1985-08-29 | 1986-09-16 | Owens-Corning Fiberglas Corporation | Method and apparatus for forming glass fibers |
US4664688A (en) * | 1985-12-17 | 1987-05-12 | Owens-Corning Fiberglas Corporation | Method and apparatus for forming glass fibers |
US4624693A (en) * | 1985-12-17 | 1986-11-25 | Owens-Corning Fiberglas Corporation | Method and apparatus for forming glass fibers |
US5147431A (en) * | 1991-06-11 | 1992-09-15 | Ppg Industries, Inc. | Bushing assembly for making glass fibers |
US6701754B2 (en) * | 2001-08-28 | 2004-03-09 | Owens Corning Fiberglas Technology, Inc. | Screen for use in a glass fiber bushing system and bushing system therewith |
-
2004
- 2004-05-14 FR FR0405310A patent/FR2870232B1/fr not_active Expired - Fee Related
-
2005
- 2005-04-07 CA CA002566135A patent/CA2566135A1/fr not_active Abandoned
- 2005-04-07 CN CNA2005800154723A patent/CN1953940A/zh active Pending
- 2005-04-07 BR BRPI0510549-8A patent/BRPI0510549A/pt not_active IP Right Cessation
- 2005-04-07 US US11/568,617 patent/US20070227195A1/en not_active Abandoned
- 2005-04-07 MX MXPA06013214A patent/MXPA06013214A/es unknown
- 2005-04-07 EP EP05748530A patent/EP1748963A1/fr not_active Withdrawn
- 2005-04-07 RU RU2006144462/03A patent/RU2373159C2/ru not_active IP Right Cessation
- 2005-04-07 WO PCT/FR2005/050217 patent/WO2005113462A1/fr active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3988135A (en) * | 1975-07-28 | 1976-10-26 | Kaiser Glass Fiber Corporation | Assembly for the drawing of glass fibers |
US5928402A (en) * | 1997-08-04 | 1999-07-27 | Owens Corning Fiberglas Technology, Inc. | Multi-screen system for mixing glass flow in a glass bushing |
JPH1179779A (ja) * | 1997-09-02 | 1999-03-23 | Nippon Electric Glass Co Ltd | ガラス繊維製造用紡糸炉 |
US20030205067A1 (en) * | 1997-09-15 | 2003-11-06 | Johns Manville International, Inc. | Screen for fiberizing bushings |
US5935291A (en) * | 1997-10-29 | 1999-08-10 | Ppg Industries Ohio, Inc. | Bushings and fiber forming assemblies |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 08 30 June 1999 (1999-06-30) * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8001807B2 (en) | 2006-12-14 | 2011-08-23 | Ocv Intellectual Capital, Llc | Palladium screens for bushing assembly and method of using |
US7980099B2 (en) | 2007-03-15 | 2011-07-19 | Ocv Intellectual Capital, Llc | Multiple alloy bushing assembly |
FR2922884A1 (fr) * | 2007-10-29 | 2009-05-01 | Saint Gobain Technical Fabrics | Blocs de reception d'une matiere fondue, notamment du verre, et installation de fibrage pourvue de tels blocs |
WO2009056726A2 (fr) * | 2007-10-29 | 2009-05-07 | Saint-Gobain Technical Fabrics Europe | Blocs de reception d'une matiere fondue, notamment du verre, et installation de fibrage pourvue de tels blocs |
WO2009056726A3 (fr) * | 2007-10-29 | 2009-08-06 | Saint Gobain Technical Fabrics | Blocs de reception d'une matiere fondue, notamment du verre, et installation de fibrage pourvue de tels blocs |
Also Published As
Publication number | Publication date |
---|---|
RU2006144462A (ru) | 2008-06-20 |
CN1953940A (zh) | 2007-04-25 |
MXPA06013214A (es) | 2007-02-08 |
EP1748963A1 (fr) | 2007-02-07 |
US20070227195A1 (en) | 2007-10-04 |
FR2870232B1 (fr) | 2007-02-16 |
FR2870232A1 (fr) | 2005-11-18 |
CA2566135A1 (fr) | 2005-12-01 |
RU2373159C2 (ru) | 2009-11-20 |
BRPI0510549A (pt) | 2007-10-30 |
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