WO1998012147A1 - Fiberglass spinning device - Google Patents

Fiberglass spinning device Download PDF

Info

Publication number
WO1998012147A1
WO1998012147A1 PCT/EP1997/005024 EP9705024W WO9812147A1 WO 1998012147 A1 WO1998012147 A1 WO 1998012147A1 EP 9705024 W EP9705024 W EP 9705024W WO 9812147 A1 WO9812147 A1 WO 9812147A1
Authority
WO
WIPO (PCT)
Prior art keywords
spinneret
rows
base plate
tips
spinneret according
Prior art date
Application number
PCT/EP1997/005024
Other languages
German (de)
French (fr)
Inventor
Carl Breugelmans
Walther Van Raemdonck
Original Assignee
Bayer Antwerpen N.V.
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 Bayer Antwerpen N.V. filed Critical Bayer Antwerpen N.V.
Priority to JP10514269A priority Critical patent/JP2001500466A/en
Priority to EP97942029A priority patent/EP0931026A1/en
Publication of WO1998012147A1 publication Critical patent/WO1998012147A1/en

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
    • C03B37/083—Nozzles; Bushing nozzle plates
    • 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
    • C03B37/0209—Cooling non-optical fibres drawn or extruded from bushings, nozzles or orifices by means of a solid heat sink, e.g. cooling fins
    • 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 Glasfaserspinnvor ⁇ chtung for melt spinning glass fibers, in particular an improved spinneret with increased spinning performance which has an extended service life
  • the starting materials for the glass are melted in an oven, the resulting glass melt is fed to various spinning stations, in which the glass mass through glass fiber nozzles, so-called bushings , emerges
  • the glass threads emerging from the nozzles are drawn off, cooled, for example by air cooling or spraying with water, and brought together to form one or more fiber bundles.
  • the fiber bundles are optionally provided with a preparation and then wound on bobbins or fed to a cutting device
  • This material is used for further processing e.g. in the production of glass fiber reinforced thermoplastics
  • the patent specification JP 1 333 01 1 describes a production process for glass fiber spinnerets. In this process, the tips for the spinneret are attached to the spinneret in that prefabricated conical ones
  • Tip elements are soldered into prepared bores of the spinneret with the help of a platinum washer.
  • the tips are each combined in rows of two that run through the base plate of the spinneret transverse to the direction of the heating current
  • the spinning performance at the spinning positions is determined, among other things, by the total number or number per area of the nozzle tips, hereinafter briefly referred to as tips, on the spinneret.However, the number of tips on a spinneret is limited. The limitation is due to irregularities in the temperature distribution on the nozzle high peak density back as a result of the uneven
  • T emperature distribution leads to a breakage of the threads and drops of the glass mass, whereby the yield of glass fibers is significantly reduced
  • the spinning performance of a spinneret is also limited by the speed of further processing, for example by the maximum winding speed of the fiber winding machines or by the processing speed of a connected cutting device in the case of the production of short glass fibers
  • the object of the invention was to provide a glass fiber spinning device which does not have the disadvantages mentioned, enables a spinning capacity of> 40 kg / h and spinneret with a fiber diameter of in particular 8 to 30 ⁇ m and shows a temperature distribution as homogeneous as possible in the region of the nozzle
  • the object is achieved according to the invention by means of a spinneret for the production of glass fibers with a melting space which has end plates with side walls
  • Power connections and a base plate is formed, with a feed line for the glass melt and rows of tips as an outlet opening for the glass melt, characterized in that three and more rows, in particular 3 to 5 rows of tips are closely adjacent in main rows, in which the The distance between adjacent tips is up to 2.0 mm
  • Tips of the spinneret are especially aligned parallel to the rare walls of the spinneret
  • the current connections at the end plates of the spinneret are connected to the end plates in each case via two contact surfaces in each case and have additional current distribution lugs on their top and / or underside which even out the current supply to the contact surfaces
  • the top plate of the spinneret is provided on its upper side with additional stiffening elements.
  • the stiffening elements are preferably made from the same material as the bottom plate or the side walls of the spinneret, usually a platinum / rhodium alloy with a rhodium content of 10 to 35% by weight
  • V, T or U-shaped metal profiles can be used as stiffening elements, which are welded onto the base plate and have openings for the supply of the glass melt to the tips.
  • An arrangement of the stiffening elements along the main rows of nozzle tips is preferred. A particularly high one Tool life is reduced when using
  • Profiles are achieved when they are welded to the base plate and both end plates.
  • the stiffening elements can be arranged so that they have one or more main rows in their width.
  • the installation of the stiffening elements results in a quick and homogeneous temperature distribution on the base plate , which enables a homogeneous, even thread take-off.
  • the improved temperature distribution improves the standard deviation of the fiber diameter by up to 20%.
  • the stiffening of the base plate also improves the long-term stability of the base plate, so that the service life of the spinneret is significantly increased
  • special cooling elements such as cooling pipes or cooling flags, are attached below the base plate between the main rows of the tips, which may have additional cooling flags on their top and / or bottom to improve the heat exchange
  • the tips of the nozzle plate are cylindrical or conical and in particular have a bore diameter of 1 to 2.5 mm.
  • the smallest distance between the tips within the main rows of tips is in particular> 2.5 mm, preferably 2.5 to 6 mm
  • the thickness of the power connections is preferably from 2.5 to 7 mm and is selected depending on the width of the nozzle
  • the withdrawal speed of the glass fibers is in particular about 600 to 3,000 m / mm, preferably from 600 to 1,500 m / mm
  • the stiffening elements preferably have a thickness of 0.5 to 1.6 mm.
  • the bores in the stiffening elements have diameters of preferably 5 to 15 mm.
  • the contact area of the power connections have a width of 20 to 100 mm and close a recess of preferably 15 to Another object of the invention is the use of the spinneret according to the invention for the production of glass fibers with a diameter of in particular 8 to 30 ⁇ , preferably 9 to 24 ⁇
  • Fig. 1 shows a cross section through the inner part of a spinneret in a perspective view
  • 3 a and b show the front view and top view of a power connection of the spinneret
  • Fig. 5 is a perspective view of the inner part of a known spinneret
  • Fig. 4 made of Pt Rh alloy (90/10) are welded onto the base plate 1 over the entire length of the base plate and have about 35 holes 15 over the length of the base plate.
  • cooling tubes are additionally installed between the main rows in order to cool the formed To compare the glass thread underneath the spinneret (see Fig. 1)
  • Fig. 4 the arrangement of the stiffening plates and the arrangement of the holes on the base plate 1 are shown in a top view, with the rows of holes not being drawn continuously for reasons of clarity.
  • the power connections 6 and 6 'for heating the spinneret is connected just below the center of the end plates 5 and 5' via two contact surfaces with an intermediate recess with the end plates (see Fig. 4 and Fig. 3a and 3b).

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)

Abstract

The invention concerns a device for fiberglass melt spinning, specially a spinneret with enhanced spinning capability and improved service life.

Description

GlasfascrsninnvorrichtungGlass fiber tin device
Die Erfindung betrifft eine Glasfaserspinnvorπchtung zum Schmelzspinnen von Glasfasern, insbesondere eine verbesserte Spinndüse mit erhöhter Spinnleistung die eine verlängerte Betriebsstandzeit aufweistThe invention relates to a Glasfaserspinnvorπchtung for melt spinning glass fibers, in particular an improved spinneret with increased spinning performance which has an extended service life
Bei der Herstellung von Glasfasern, insbesondere von Glasfasern, die für den Einsatz in glasfaserverstärkten Kunststoffen vorgesehen sind, werden die Ausgangsstoffe für das Glas in einem Ofen aufgeschmolzen, die entstandene Glasschmelze wird verschiedenen Spinnstellen zugeführt, in denen die Glasmasse durch Glas- faserdusen, sogenannte Bushings, austritt Die aus den Düsen austretenden Glasfaden werden abgezogen, abgekühlt, z B durch Luftkühlung oder Besprühen mit Wasser, und zu einem oder mehreren Faserbundeln zusammengeführt Die Faserbundel werden gegebenenfalls mit einer Praparation versehen und anschließend auf Spulen gewickelt oder einer Schneidvorrichtung zugeführtIn the production of glass fibers, in particular glass fibers that are intended for use in glass fiber reinforced plastics, the starting materials for the glass are melted in an oven, the resulting glass melt is fed to various spinning stations, in which the glass mass through glass fiber nozzles, so-called bushings , emerges The glass threads emerging from the nozzles are drawn off, cooled, for example by air cooling or spraying with water, and brought together to form one or more fiber bundles. The fiber bundles are optionally provided with a preparation and then wound on bobbins or fed to a cutting device
Dieses Material dient zur weiteren Verarbeitung z B in der Produktion von glasfaserverstärkten ThermoplastenThis material is used for further processing e.g. in the production of glass fiber reinforced thermoplastics
In der Offen legungsschrift EP 229 648 AI ist eine typische Spinndüse zum Spinnen von Glasfasern wiedergegeben Die Spinndüse weist Reihen von Spitzen in einer Bodenplatten auf, die entlang einer Geraden von Endplatte zu Endplatte der Düse angeordnet sind An den Endplatten befinden sich je zwei separate Stromzufuhrungen Über die Stromzufuhrung wird durch die Spinndüse ein elektrischer Strom geleitet, der die Heizung der Glasschmelze bewirken soll Obwohl diese Geometrie gegenüber älterem Stand der Technik Vorteile hin- sichtlich der Gleichmäßigkeit der Beheizung der Glasschmelze bringen soll zeigt die Praxis der Verwendung solcher Bushings Abweichungen in der Temperaturverteilung und daraus folgend in der Gleichmäßigkeit des GlasfaserdurchmessersIn the published patent application EP 229 648 AI, a typical spinneret for spinning glass fibers is reproduced. The spinneret has rows of tips in a base plate, which are arranged along a straight line from end plate to end plate of the nozzle. Two separate power supplies are located on the end plates the power supply is passed through the spinneret an electric current which is to effect the heating of the glass melt. Although this geometry should bring advantages over the prior art with regard to the uniformity of the heating of the glass melt, the practice of using such bushings shows deviations in the temperature distribution and hence the uniformity of the glass fiber diameter
In der Patentschrift JP 1 333 01 1 wird ein Herstellungsverfahren für Glasfaser- spinndusen beschrieben Bei diesem Verfahren werden die Spitzen für die Spinndüse an der Spinndüse dadurch angebracht, daß vorgefertigte konischeThe patent specification JP 1 333 01 1 describes a production process for glass fiber spinnerets. In this process, the tips for the spinneret are attached to the spinneret in that prefabricated conical ones
Spitzenelemente mit Hilfe einer Platinunterlegscheibe in vorbereitete Bohrungen der Spinndüse eingelotet werden Die Spitzen sind dabei jeweils zu Zweierreihen zusammengefaßt, die quer zur Richtung des Heizstroms durch die Bodenplatte der Spinndüse laufen Die Spinnleistung an den Spinnstellen wird u a durch die Gesamtzahl bzw Anzahl pro Flache der Dusenspitzen, im folgenden kurz als Spitzen bezeichnet, auf der Spinndüse bestimmt Die Anzahl der Spitzen auf einer Spinndüse ist aber begrenzt Die Begrenzung geht auf Unregelmäßigkeiten der Temperaturverteilung auf der Düse bei zu hoher Spitzendichte zurück Als Folge der ungleichmäßigenTip elements are soldered into prepared bores of the spinneret with the help of a platinum washer. The tips are each combined in rows of two that run through the base plate of the spinneret transverse to the direction of the heating current The spinning performance at the spinning positions is determined, among other things, by the total number or number per area of the nozzle tips, hereinafter briefly referred to as tips, on the spinneret.However, the number of tips on a spinneret is limited.The limitation is due to irregularities in the temperature distribution on the nozzle high peak density back as a result of the uneven
T emperaturverteilung tritt verhauft ein Abbruch der Faden und Tropfen der Glasmasse ein, wodurch die Ausbeute an Glasfasern empfindlich herabgesetztT emperature distribution leads to a breakage of the threads and drops of the glass mass, whereby the yield of glass fibers is significantly reduced
Ein weiterer Nachteil ist die Temperaturerniedπgung in Teilen der Spinndüse beim Anspinnvorgang, wonach die Anspinnzeit unerwünscht verlängert wirdAnother disadvantage is the temperature reduction in parts of the spinneret during the piecing process, after which the piecing time is undesirably extended
Die Spinnleistung einer Spinndüse wird auch durch die Geschwindigkeit der Weiterverarbeitung begrenzt, so z B durch die maximale Wickelgeschwindigkeit der Faserwickelmaschinen oder durch die Verarbeitungsgeschwindigkeit einer angeschlossenen Schneidvorrichtung im Falle der Herstellung von KurzglasfasernThe spinning performance of a spinneret is also limited by the speed of further processing, for example by the maximum winding speed of the fiber winding machines or by the processing speed of a connected cutting device in the case of the production of short glass fibers
Aufgabe der Erfindung war es, eine Glasfaserspinnvorrichtung bereitzustellen, die die genannten Nachteile nicht aufweist, eine Spinnleistung von >40 kg/h und Spinndüse bei einem Faserdurchmesser von insbesondere 8 bis 30 μm ermöglicht und eine möglichst homogene Temperaturverteilung im Bereich der Düse zeigtThe object of the invention was to provide a glass fiber spinning device which does not have the disadvantages mentioned, enables a spinning capacity of> 40 kg / h and spinneret with a fiber diameter of in particular 8 to 30 μm and shows a temperature distribution as homogeneous as possible in the region of the nozzle
Die Aufgabe wird erfmdungsgemaß gelost durch eine Spinndüse zur Herstellung von Glasfasern mit einem Schmelzraum, der durch Seitenwande Endplatten mitThe object is achieved according to the invention by means of a spinneret for the production of glass fibers with a melting space which has end plates with side walls
Stromanschlussen und eine Bodenplatte gebildet wird, mit einer Zuleitung für die Glasschmelze und Reihen von Spitzen als Austπttsoffnung für die Glasschmelze, dadurch gekennzeichnet, daß jeweils drei und mehr Reihen, insbesondere 3 bis 5 Reihen von Spitzen eng benachbart in Hauptreihen zusammengefaßt sind, in denen der Abstand benachbarter Spitzen bis zu 2,0 mm betragt Die Hauptreihen derPower connections and a base plate is formed, with a feed line for the glass melt and rows of tips as an outlet opening for the glass melt, characterized in that three and more rows, in particular 3 to 5 rows of tips are closely adjacent in main rows, in which the The distance between adjacent tips is up to 2.0 mm
Spitzen der Spinndüse sind insbesondere parallel zu den Seltenwanden der Spinndüse ausgerichtetTips of the spinneret are especially aligned parallel to the rare walls of the spinneret
Die Stromanschlusse an den Endplatten der Spinndüse sind insbesondere über je zwei Kontaktflachen mit den Endplatten verbunden und weisen auf ihrer Oberseite und/oder ihrer Unterseite zusatzliche Stromverteilerfahnen vor, die die Strom- fuhrung zu den Kontaktflachen vergleichmaßigen In einer bevorzugten Variante der erfindungsgemaßen Spinndüse ist die Bodenplatte der Spinndüse auf ihrer Oberseite mit zusätzlichen Versteifungsei ementen versehen Die Versteifungsei emente werden bevorzugt aus dem gleichen Material gefertigt wie die Bodenplatte oder die Seitenwande der Spinndüse, üblicherweise eine Platin/Rhodium-Legierung mit einem Rhodiumanteil von 10 bis 35 Gew -%The current connections at the end plates of the spinneret are connected to the end plates in each case via two contact surfaces in each case and have additional current distribution lugs on their top and / or underside which even out the current supply to the contact surfaces In a preferred variant of the spinneret according to the invention, the top plate of the spinneret is provided on its upper side with additional stiffening elements. The stiffening elements are preferably made from the same material as the bottom plate or the side walls of the spinneret, usually a platinum / rhodium alloy with a rhodium content of 10 to 35% by weight
Als Versteifungsei emente können z B V-, T- oder U-formige Metallprofile verwendet werden, die auf die Bodenplatte aufgeschweißt werden und Durchbruche für die Zuleitung der Glasschmelze an die Spitzen aufweisen Bevorzugt ist eine Anordnung der Versteifungselemente entlang der Hauptreihen von Dusenspitzen Eine besonders hohe Standzeit wird bei der Verwendung vonFor example, V, T or U-shaped metal profiles can be used as stiffening elements, which are welded onto the base plate and have openings for the supply of the glass melt to the tips. An arrangement of the stiffening elements along the main rows of nozzle tips is preferred. A particularly high one Tool life is reduced when using
Profilen, insbesondere V-Profilen erreicht, wenn diese mit der Bodenplatte und beiden Endplatten verschweißt sind Die Versteifungselemente können so angeordnet sein, daß sie in ihrei Breite eine oder mehrere Hauptreihen umfassen Der Einbau der Versteifungselemente bewirkt eine schnelle und homogenere Tem- peraturverteilung auf der Bodenplatte, wodurch ein homogener gleichmäßiger Fadenabzug möglich ist Durch die verbesserte Temperaturverteilung verbessert sich die Standardabweichung des Faserdurchmessers um bis zu 20 % Die Versteifung der Bodenplatte bewirkt außerdem eine Verbesserung der Langzeitstabilitat der Bodenplatte, so daß die Lebensdauer der Spinndüse signifikant erhöht wirdProfiles, especially V-profiles, are achieved when they are welded to the base plate and both end plates. The stiffening elements can be arranged so that they have one or more main rows in their width. The installation of the stiffening elements results in a quick and homogeneous temperature distribution on the base plate , which enables a homogeneous, even thread take-off. The improved temperature distribution improves the standard deviation of the fiber diameter by up to 20%. The stiffening of the base plate also improves the long-term stability of the base plate, so that the service life of the spinneret is significantly increased
In einer weiteren bevorzugten Variante der erfindungsgemaßen Vorrichtung sind unterhalb der Bodenplatte zwischen den Hauptreihen der Spitzen besondere Kuhlelementc, wie z B Kuhlrohre oder Kuhlfahnen, angebracht, die zur Verbesserung des Warmeaustauschs gegebenenfalls zusätzliche Kuhlfahnen an ihrer Oberseite und/oder Unterseite aufweisenIn a further preferred variant of the device according to the invention, special cooling elements, such as cooling pipes or cooling flags, are attached below the base plate between the main rows of the tips, which may have additional cooling flags on their top and / or bottom to improve the heat exchange
Die Spitzen der Dusenplatte sind je nach Herstellungsverfahren zylindrisch oder kegelförmig und weisen insbesondere einen Bohrungsdurchmesser von 1 bis 2,5 mm auf Der kleinste Abstand zwischen den Spitzen innerhalb der Spitzen- hauptreihen betragt insbesondere >2,5 mm, bevorzugt von 2,5 bis 6 mmDepending on the manufacturing process, the tips of the nozzle plate are cylindrical or conical and in particular have a bore diameter of 1 to 2.5 mm. The smallest distance between the tips within the main rows of tips is in particular> 2.5 mm, preferably 2.5 to 6 mm
Die Dicke der Stromanschlusse betragt bevorzugt von 2,5 bis 7 mm und wird in Abhängigkeit von der Dusenbreite gewähltThe thickness of the power connections is preferably from 2.5 to 7 mm and is selected depending on the width of the nozzle
Die Abzugsgeschwindigkeit der Glasfasern betragt insbesondere etwa 600 bis 3 000 m/mm, bevorzugt von 600 bis I 500 m/mm Die Versteifungselemente haben bevorzugt eine Dicke von 0,5 bis 1 ,6 mm Die Bohrungen in den Versteifungselementen weisen Durchmesser von bevorzugt 5 bis 15 mm auf Die Kontaktflache der Stromanschlusse weisen eine Breite von 20 bis 100 mm auf und schließen eine Aussparung von bevorzugt 15 bis 30 mm zwi- sehen sich ein Weiterer Gegenstand der Erfindung ist die Verwendung dei erfindungsgemaßen Spinndüse zur Herstellung von Glasfasern mit einem Durchmesser von insbesondere 8 bis 30 μ, bevorzugt von 9 bis 24 μThe withdrawal speed of the glass fibers is in particular about 600 to 3,000 m / mm, preferably from 600 to 1,500 m / mm The stiffening elements preferably have a thickness of 0.5 to 1.6 mm. The bores in the stiffening elements have diameters of preferably 5 to 15 mm. The contact area of the power connections have a width of 20 to 100 mm and close a recess of preferably 15 to Another object of the invention is the use of the spinneret according to the invention for the production of glass fibers with a diameter of in particular 8 to 30 μ, preferably 9 to 24 μ
Weitere bevorzugte Ausfuhrungsformen der Erfindung sind den abhangigen Patentansprüchen zu entnehmenFurther preferred embodiments of the invention can be found in the dependent claims
Die Erfindung wird im folgenden anhand der Figuren beispielhaft naher erläutertThe invention is explained in more detail below with reference to the figures
In den Figuren zeigenShow in the figures
Fig 1 einen Querschnitt durch das Innenteil einer Spinndüse in perspektivischer DarstellungFig. 1 shows a cross section through the inner part of a spinneret in a perspective view
Fig 2 den Querschnitt durch eine erfindungsgemaße Düse mit V-formigen aufgeschweißten Versteifungsflachen2 shows the cross section through an inventive nozzle with V-shaped welded stiffening surfaces
Fig 3 a und b die Vorderansicht und Draufsicht eines Stromanschlusses der Spinndüse3 a and b show the front view and top view of a power connection of the spinneret
Fig 4 die Draufsicht auf eine Spinndüse mit der Lage eines Stromanschlusses4 shows the top view of a spinneret with the position of a power connection
Fig 5 die perspektivische Darstellung des Innenteils einer bekannten SpinndüseFig. 5 is a perspective view of the inner part of a known spinneret
Fig 6 Querschnitt durch eine Düse gemäß Fig 5 6 cross section through a nozzle according to FIG. 5
BeispieleExamples
In der Bodenplatte 1 einer Spinndüse 10 sind je 3 Reihen 3 von Spitzen 2 zu Hauptreihen 9 auf der Düse zusammengefaßt Die Bohrung der Spitzen 2 der mittleren Reihe in jeder Hauptreihe 9 sind jeweils versetzt zu den symmetrischen Bohrungen der außenliegenden Reihen angebracht V-formige VersteifungsblecheIn the base plate 1 of a spinneret 10, 3 rows 3 are combined from tips 2 to main rows 9 on the nozzle. The bore of the tips 2 of the middle row in each main row 9 are each offset from the symmetrical bores of the rows lying outside V-shaped stiffening plates
4 aus Pt Rh Legierung (90/10) sind über die Gesamtlange der Bodenplatte auf der Bodenplatte 1 aufgeschweißt und weisen über die Lange der Bodenplatte etwa 35 Bohrungen 15 auf Unterhalb der Bodenplatte sind zusätzlich zwischen den Hauptreihen Kuhlrohrchen angebracht, um die Abkühlung der sich bildenden Glasfaden unterhalb der Spinndüse zu vergleichmaßigen (siehe Fig 1) In Fig 4 ist die Anordnung der Versteifungsbleche sowie die Anordnung der Bohrungen auf der Bodenplatte 1 in der Draufsicht vereinfacht wiedergegeben, wobei aus Gründen der Übersichtlichkeit die Bohrungsreihen nicht durchgehend gezeichnet wurden Die Stromanschlusse 6 und 6' für die Heizung der Spinndüse ist knapp unterhalb der Mitte der Endplatten 5 bzw 5' über zwei Kontaktflachen mit einer zwischenliegenden Aussparung mit den Endplatten verbunden (siehe Fig 4 bzw Fig 3a und 3b) Mit der veränderten Anordnung der Spinnspitzen an der Spinndüse 10 wird gegenüber der einfachen aus dem Stand der Technik ableitbaren Geometrie der Spinndüse (gemäß Fig 5 bzw Fig 6) im Betrieb eine Verbesserung der Standardabweichung bei der Messung des mittleren Faserdurch- messers von etwa 20 % erreicht Die Standzeit der eingesetzten Spinndüse verlängert sich gegenüber konventionellen Spinndüsen um etwa 40 % 4 made of Pt Rh alloy (90/10) are welded onto the base plate 1 over the entire length of the base plate and have about 35 holes 15 over the length of the base plate. Below the base plate, cooling tubes are additionally installed between the main rows in order to cool the formed To compare the glass thread underneath the spinneret (see Fig. 1) In Fig. 4, the arrangement of the stiffening plates and the arrangement of the holes on the base plate 1 are shown in a top view, with the rows of holes not being drawn continuously for reasons of clarity. The power connections 6 and 6 'for heating the spinneret is connected just below the center of the end plates 5 and 5' via two contact surfaces with an intermediate recess with the end plates (see Fig. 4 and Fig. 3a and 3b). With the changed arrangement of the spinning tips on the spinneret 10 is opposite the simple derleitba from the prior art ren geometry of the spinneret (according to Fig. 5 or Fig. 6) in operation an improvement of the standard deviation in the measurement of the average fiber diameter of about 20% is achieved. The service life of the spinneret used is extended by about 40% compared to conventional spinnerets.

Claims

Patentansprücheclaims
1 Spinndüse (10) zur Herstellung von Glasfasern mit einem Schmelzraum (1 1), der gebildet wird durch Seitenwande ( 12, 12'), Endplatten (5, 5') mit Stromanschlussen (6, 6'), eine Bodenplatte (1 ) und eine Zuleitung (13) für die Glasschmelze (17), dadurch gekennzeichnet, daß jeweils zwei und mehr, vorzugsweise 3 bis 5 Reihen (3) von Spitzen (2) eng benachbart in Hauptreihen (9) zusammengefaßt sind, in denen der Abstand benachbarter Spitzen bis zu 2,0 mm betragt1 spinneret (10) for the production of glass fibers with a melting space (1 1), which is formed by side walls (12, 12 '), end plates (5, 5') with power connections (6, 6 '), a base plate (1) and a feed line (13) for the glass melt (17), characterized in that in each case two or more, preferably 3 to 5 rows (3) of tips (2) are closely adjacent in main rows (9), in which the distance between adjacent ones Peaks up to 2.0 mm
2 Spinndüse nach Anspruch 1, dadurch gekennzeichnet, daß die Hauptreihen (9) parallel zu den Seltenwanden (12) der Spinndüse (10) ausgerichtet sind2 spinneret according to claim 1, characterized in that the main rows (9) are aligned parallel to the rare walls (12) of the spinneret (10)
3 Spinndüse gemäß den Ansprüchen 1 bis 2, dadurch gekennzeichnet, daß beide Stromanschlusse (6, 6') über je zwei Kontaktflachen ( 14, 14') mit den Endplatten (5) bzw (5') verbunden sind und auf ihrer Ober- und/oder Unterseite mit zusätzlichen Stromverteilerfahnen (7) versehen sind3 spinneret according to claims 1 to 2, characterized in that both power connections (6, 6 ') via two contact surfaces (14, 14') with the end plates (5) and (5 ') are connected and on their top and / or underside are provided with additional power distribution lugs (7)
4 Spinndüse gemäß den Ansprüchen 1 bis 3, dadurch gekennzeichnet, daß die4 spinneret according to claims 1 to 3, characterized in that the
Bodenplatte (1 ) auf ihrer Oberseite mit zusätzlichen Versteifungselementen (4) versehen istBase plate (1) is provided on its upper side with additional stiffening elements (4)
5 Spinndüse nach Anspruch 4, dadurch gekennzeichnet, daß die Versteifungselemente (4) entlang der Hauptreihen (9) der Bodenplatte (1 ) ausgerichtet
Figure imgf000008_0001
5 spinneret according to claim 4, characterized in that the stiffening elements (4) along the main rows (9) of the base plate (1) aligned
Figure imgf000008_0001
6 Spinndüse gemäß den Ansprüchen 4 bis 5, dadurch gekennzeichnet, daß die Versteifungselemente (4) als V-, U-, T- oder Doppel-T-formige Profile ausgebildet sind, die Durchbruche (15) für den Durchgang der Glasschmelze (17) aufweisen6 spinneret according to claims 4 to 5, characterized in that the stiffening elements (4) are designed as V-, U-, T- or double-T-shaped profiles, the openings (15) for the passage of the glass melt (17) exhibit
7 Spinndüse nach Anspruch 6, dadurch gekennzeichnet, daß die Versteifungselemente (4) mit der Bodenplatte (1) und den Endplatten (5, 5') verbunden
Figure imgf000008_0002
7 spinneret according to claim 6, characterized in that the stiffening elements (4) with the base plate (1) and the end plates (5, 5 ') connected
Figure imgf000008_0002
8 Spinndüse nach den Ansprüchen 1 bis 7, dadurch gekennzeichnet, daß die8 spinneret according to claims 1 to 7, characterized in that the
Spitzen in den Reihen (3) ganz oder abschnittsweise gleich beabstandet verteilt sind und/oder daß die Spitzen benachbarter Reihen (3) in Hauptreihen (9) in Längsrichtung versetzt zueinander angeordnet sindPeaks in the rows (3) in whole or in part equally spaced are distributed and / or that the tips of adjacent rows (3) in main rows (9) are arranged offset to one another in the longitudinal direction
Spinndüse gemäß den Ansprüchen 1 bis 8, dadurch gekennzeichnet, daß diese zwischen den Hauptreihen (9) der Spitzen (2) unterhalb der Bodenplatte (1) zusatzliche Kiihlel emente (8) aufweist, die gegebenenfalls zusatzliche Kϋhlfahnen (16) an ihrer Oberseite und/oder ihrer Unterseite tragenSpinning nozzle according to claims 1 to 8, characterized in that it has additional cooling elements (8) between the main rows (9) of the tips (2) below the base plate (1), which optionally have additional cooling vanes (16) on their top and / or wear their bottom
Verwendung der Spinndüse gemäß den Ansprüchen 1 bis 9 zur Herstellung von schmelzgesponnenen Fasern, insbesondere Glasfasern, mit einem Durchmesser von bevorzugt 8 bis 30 μm, besonders bevorzugt von 9 bis 24 μm Use of the spinneret according to claims 1 to 9 for the production of melt-spun fibers, in particular glass fibers, with a diameter of preferably 8 to 30 μm, particularly preferably 9 to 24 μm
PCT/EP1997/005024 1996-09-18 1997-09-15 Fiberglass spinning device WO1998012147A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP10514269A JP2001500466A (en) 1996-09-18 1997-09-15 Glass fiber spinning equipment
EP97942029A EP0931026A1 (en) 1996-09-18 1997-09-15 Fiberglass spinning device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19638056A DE19638056C2 (en) 1996-09-18 1996-09-18 Glass fiber spinning device
DE19638056.1 1996-09-18

Publications (1)

Publication Number Publication Date
WO1998012147A1 true WO1998012147A1 (en) 1998-03-26

Family

ID=7806015

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1997/005024 WO1998012147A1 (en) 1996-09-18 1997-09-15 Fiberglass spinning device

Country Status (4)

Country Link
EP (1) EP0931026A1 (en)
JP (1) JP2001500466A (en)
DE (1) DE19638056C2 (en)
WO (1) WO1998012147A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1193225A2 (en) * 2000-09-29 2002-04-03 Johns Manville International Inc. Bushing and method for fiberizing a molten material
WO2003002472A1 (en) * 2001-06-27 2003-01-09 Owens Corning Reinforcement member for a bushing tip plate and method of rienforcing the plate
US9487430B2 (en) 2012-06-21 2016-11-08 3B-Fibreglass Sprl Polygonal tip plate module and bushing assembly comprising such modules

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007061695A1 (en) 2007-12-19 2009-06-25 Umicore Ag & Co. Kg Apparatus for the shaping of melts of inorganic oxides or minerals with improved heating means
DE102009051067A1 (en) * 2009-10-28 2011-05-05 Umicore Ag & Co. Kg Jet assembly
EP2669256A1 (en) * 2012-05-29 2013-12-04 3B Fibreglass Bushing assembly comprising a distribution manifold
JP6161843B1 (en) * 2017-02-16 2017-07-12 ユニチカグラスファイバー株式会社 Glass product manufacturing apparatus, glass product manufacturing method, and platinum group metal recovery method

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2691214A (en) * 1951-08-08 1954-10-12 Baker & Co Inc Method of making crucibles for heating thermoplastic materials
DE2055241A1 (en) * 1969-10-28 1971-05-13 Johns Manville Process for controlling the melting glass temperature in Extrudiervomchtungen and device for carrying out the process
DE1696038A1 (en) * 1967-03-23 1972-01-05 Owens Corning Fiberglass Corp Thread generating device for generating fibers from molten mineral material, in particular glass
US3810741A (en) * 1971-05-21 1974-05-14 Owens Corning Fiberglass Corp Method and apparatus for processing glass and controlling the thermal pattern in a stream feeder
US3982915A (en) * 1975-12-08 1976-09-28 Coggin Jr Charles H Apparatus and method for controlling flooding in the drawing of glass fibers
SU967972A1 (en) * 1980-06-03 1982-10-23 Полоцкий Завод Стекловолокна Им.Ленинского Комсомола Белоруссии Glass melting vessel for forming continuous glass fiber
JPS59125265A (en) * 1982-12-28 1984-07-19 Tokuriki Honten Co Ltd Production of bushing for fiber forming
WO1985004648A1 (en) * 1984-04-09 1985-10-24 Owens-Corning Fiberglas Corporation Method and apparatus for forming glass fibers
WO1986002632A1 (en) * 1984-10-31 1986-05-09 Owens-Corning Fiberglas Corporation Method and apparatus for the production of glass filaments
EP0229648A1 (en) * 1986-01-17 1987-07-22 Manville Corporation Terminal connection for fiber glass bushing

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3514841A (en) * 1967-05-17 1970-06-02 Owens Corning Fiberglass Corp Forming a tip section that feeds streams of heat-softened material
CA981536A (en) * 1971-03-12 1976-01-13 Owens-Corning Fiberglas Corporation Method and apparatus for processing glass to fibers
DE2324599A1 (en) * 1973-05-16 1974-12-05 Zimmer Ag Spinneret plate of metal laminate - for polymer melt spinneret packets, with good heat transfer and distribution
US3926600A (en) * 1974-05-28 1975-12-16 Owens Corning Fiberglass Corp Glass fiber stream feeder
US3955951A (en) * 1975-06-02 1976-05-11 Johns-Manville Corporation Repairing clogged orifices in fiberizing bushings
JPS5324432A (en) * 1976-08-20 1978-03-07 Nitto Boseki Co Ltd Orifice plates of bushings for spinning glass fibers
GB2073731B (en) * 1980-04-12 1983-11-30 Bishop & Associates Inc Electrically heated bushing for producing glass fibres
DE3111484C2 (en) * 1981-03-24 1983-12-22 Diether 6203 Hochheim Böttger Method and device for the production of glass fibers
US5110333A (en) * 1990-08-23 1992-05-05 Mccormick Ronald O Glass fiberizing bushing

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2691214A (en) * 1951-08-08 1954-10-12 Baker & Co Inc Method of making crucibles for heating thermoplastic materials
DE1696038A1 (en) * 1967-03-23 1972-01-05 Owens Corning Fiberglass Corp Thread generating device for generating fibers from molten mineral material, in particular glass
DE2055241A1 (en) * 1969-10-28 1971-05-13 Johns Manville Process for controlling the melting glass temperature in Extrudiervomchtungen and device for carrying out the process
US3810741A (en) * 1971-05-21 1974-05-14 Owens Corning Fiberglass Corp Method and apparatus for processing glass and controlling the thermal pattern in a stream feeder
US3982915A (en) * 1975-12-08 1976-09-28 Coggin Jr Charles H Apparatus and method for controlling flooding in the drawing of glass fibers
SU967972A1 (en) * 1980-06-03 1982-10-23 Полоцкий Завод Стекловолокна Им.Ленинского Комсомола Белоруссии Glass melting vessel for forming continuous glass fiber
JPS59125265A (en) * 1982-12-28 1984-07-19 Tokuriki Honten Co Ltd Production of bushing for fiber forming
WO1985004648A1 (en) * 1984-04-09 1985-10-24 Owens-Corning Fiberglas Corporation Method and apparatus for forming glass fibers
WO1986002632A1 (en) * 1984-10-31 1986-05-09 Owens-Corning Fiberglas Corporation Method and apparatus for the production of glass filaments
EP0229648A1 (en) * 1986-01-17 1987-07-22 Manville Corporation Terminal connection for fiber glass bushing

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 008, no. 249 (M - 338) 15 November 1984 (1984-11-15) *
SOVIET INVENTIONS ILLUSTRATED Section Ch Week 8334, Derwent World Patents Index; Class F01, AN 83-746107, XP002050753 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1193225A2 (en) * 2000-09-29 2002-04-03 Johns Manville International Inc. Bushing and method for fiberizing a molten material
EP1193225A3 (en) * 2000-09-29 2002-11-27 Johns Manville International Inc. Bushing and method for fiberizing a molten material
WO2003002472A1 (en) * 2001-06-27 2003-01-09 Owens Corning Reinforcement member for a bushing tip plate and method of rienforcing the plate
US6813909B2 (en) 2001-06-27 2004-11-09 Owens Corning Fiberglas Technology, Inc. Reinforcement member for a bushing tip plate and related method
CN1300024C (en) * 2001-06-27 2007-02-14 欧文斯科尔宁格公司 Reinforcement member for bushing tip plate and method of reinforcing the plate
KR100869686B1 (en) * 2001-06-27 2008-11-21 오웬스 코닝 Reinforcement member for a bushing tip plate and method of reinforcing the plate
US9487430B2 (en) 2012-06-21 2016-11-08 3B-Fibreglass Sprl Polygonal tip plate module and bushing assembly comprising such modules

Also Published As

Publication number Publication date
JP2001500466A (en) 2001-01-16
DE19638056C2 (en) 2000-07-13
EP0931026A1 (en) 1999-07-28
DE19638056A1 (en) 1998-04-09

Similar Documents

Publication Publication Date Title
DE69312537T2 (en) Spinning device for meltblown spinning of composite threads
DE69425537T2 (en) Melt blowing nozzle
EP3692188B1 (en) Device for the extrusion of filaments and manufacture of meltspun nonwovens
DE69512804T2 (en) Fast spinning of multi-component fibers with highly perforated spinnerets and cooling at high speed
DE3437199C2 (en)
DE69415509T2 (en) DEVICE FOR PRODUCING FIBERGLASS
DE68908745T2 (en) Process and nozzle for meltblown spinning.
DE68906438T2 (en) Method and device for controlling cooling in the manufacture of glass fibers.
EP0781877B1 (en) Melt-spinning apparatus
DE19638056C2 (en) Glass fiber spinning device
DE3406346C2 (en) Melt spinning device for producing a group of filament threads
DE2735186A1 (en) METHOD AND APPARATUS FOR FORMING GLASS FIBERS THROUGH DRAWING
EP0455897B1 (en) Apparatus for the preparation of very fine fibres
DE1471926B2 (en) PROCESS AND DEVICE FOR MANUFACTURING VERY FINE MINERAL FIBERS, IN PARTICULAR GLASS FIBERS
DE2532900A1 (en) METHOD FOR PRODUCING SPINNED FIBERS
DE2917737B2 (en) Nozzle head for a glass fiber drawing nozzle
EP0409207B1 (en) Apparatus for spinning core-skin fibres
DE60105768T2 (en) ANNEX SPECIFIC FOR THE MANUFACTURE OF THERMOPLASTIC CUT FIBERS
DE2732413B2 (en) Nipple-free nozzle plate for drawing glass fibers
DE1007478B (en) Device for the production of glass threads
DE1660379B1 (en) Spinneret for the production of composite threads
DE102009051067A1 (en) Jet assembly
EP0752020B1 (en) Process and device for cooling melt-extruded filaments
DE2736475A1 (en) PERFORATED PLATE FOR USE IN A BUSHING FOR SPINNING FIBERGLASS
DE69003736T2 (en) Stiffened nozzle pan and drawing nozzles for glass fibers.

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): JP US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 1997942029

Country of ref document: EP

ENP Entry into the national phase

Ref country code: JP

Ref document number: 1998 514269

Kind code of ref document: A

Format of ref document f/p: F

WWE Wipo information: entry into national phase

Ref document number: 09254726

Country of ref document: US

WWP Wipo information: published in national office

Ref document number: 1997942029

Country of ref document: EP

WWW Wipo information: withdrawn in national office

Ref document number: 1997942029

Country of ref document: EP