DE1204368B - Blow nozzle for the production of fibers from molten silicates such as glass, minerals and the like. like - Google Patents
Blow nozzle for the production of fibers from molten silicates such as glass, minerals and the like. likeInfo
- Publication number
- DE1204368B DE1204368B DEG37408A DEG0037408A DE1204368B DE 1204368 B DE1204368 B DE 1204368B DE G37408 A DEG37408 A DE G37408A DE G0037408 A DEG0037408 A DE G0037408A DE 1204368 B DE1204368 B DE 1204368B
- Authority
- DE
- Germany
- Prior art keywords
- nickel
- fibers
- nozzle
- glass
- minerals
- 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.)
- Pending
Links
- 239000000835 fiber Substances 0.000 title claims description 8
- 239000011521 glass Substances 0.000 title claims description 4
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 title claims description 3
- 239000011707 mineral Substances 0.000 title claims description 3
- 150000004760 silicates Chemical class 0.000 title description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 24
- 229910052759 nickel Inorganic materials 0.000 claims description 12
- 229910045601 alloy Inorganic materials 0.000 claims description 6
- 239000000956 alloy Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- 238000007664 blowing Methods 0.000 claims description 3
- 239000003238 silicate melt Substances 0.000 claims description 2
- 239000000155 melt Substances 0.000 description 7
- 239000004604 Blowing Agent Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten 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
- C03B37/06—Manufacture of glass fibres or filaments by blasting or blowing molten glass, e.g. for making staple fibres
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)
- Inorganic Fibers (AREA)
- Glass Compositions (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
BUNDESREPUBLIK DEUTSCHLAND DEUTSCHES S/WrWt PATENTAMTFEDERAL REPUBLIC OF GERMANY GERMAN S / WrWt PATENT OFFICE
AUSLEGESCHRIFTEDITORIAL
Int. α.:Int. α .:
CO3bCO3b
Nummer:
Aktenzeichen:
Anmeldetag:
Auslegetag:Number:
File number:
Registration date:
Display day:
Deutsche Kl.: 32 a - 37/08 German class: 32 a - 37/08
G 37408 VIb/32aG 37408 VIb / 32a
1. April 1963April 1, 1963
4. November 1965November 4, 1965
Die Erfindung betrifft die verbesserte Ausbildung einer Blasdüse zur Herstellung von Fasern aus Silikatschmelzen im Wege des Düsenblasverfahrens.The invention relates to the improved design of a blow nozzle for the production of fibers from silicate melts by means of the nozzle blowing process.
Bei diesem bekannten Verfahren werden verhältnismäßig dünne Strahlen der Schmelze in einen Blasstrom geleitet, der etwa in Richtung der Schmelzestrahlen rasch fließt und sie zu feinen Fasern auszieht. In this known method, relatively thin jets of the melt are in a blow stream which flows rapidly in the direction of the melt jets and pulls them out into fine fibers.
Blasdüsen solcher Art sind in mehreren Bauformen bekannt und weisen einen beiderseits offenen Kanal auf, in den an einem, meist dem oberen, Ende die Schmelzestrahlen sowie durch einen oder mehrere Schlitze die Blasmittelströme eintreten. Am anderen Ende des Kanals verläßt der faserführende Blasstrom die Blasdüse. Der Kanal kann bekanntlich kreisförmigen oder rechteckig-schlitzförmigen Querschnitt haben.Air nozzles of this type are known in several designs and have one that is open on both sides Channel on, in which at one, usually the upper, end the melt jets and through one or more Slots in which blowing agent flows enter. The fiber leading one leaves at the other end of the channel Blow stream the nozzle. As is known, the channel can have a circular or rectangular slot-shaped cross section to have.
Bei der letztgenannten Bauweise läßt sich der Kanalquerschnitt, d. h. der Abstand zwischen zwei Blasdüsenhälften, während des Betriebs laufend ao ändern, wie es z. B. im Patent 848 990 beschrieben ist. Diese Maßnahme erlaubt zwar das vorteilhafte Anpassen der Blasdüse an die jeweiligen Betriebsbedingungen bzw. die Eigenschaften der Schmelze. Jedoch bringt die zur Verbesserung der Faserqualitat an sich erwünschte Verringerung des Abstandes zwischen den Blasdüsenhälften die Gefahr mit sich, daß bei einem bestimmten Abstand die Blasdüse von den Fasern bzw. der Schmelze verstopft wird und ausgewechselt werden muß.In the last-mentioned construction, the channel cross-section, i. H. the distance between two Blow nozzle halves, change ao continuously during operation, as it is z. As described in patent 848,990 is. This measure allows the blower nozzle to be advantageously adapted to the respective operating conditions or the properties of the melt. However, it improves the fiber quality A reduction in the distance between the nozzle halves, which is desirable in itself, entails the risk of that at a certain distance the nozzle is clogged by the fibers or the melt and must be replaced.
Trotzdem man solche Blasdüsen mit Rücksicht auf Beanspruchungen, die sie durch die Temperaturen der Schmelze und des Blasmittels erfahren, bisher bereits aus Edelstahl und ähnlichen hochwertigen, wärmebeständigen Werkstoffen gefertigt hat, war ihre Lebensdauer ziemlich begrenzt. Insbesondere bei enger Einstellung des Kanals stellten sich an den Wandungen, die den faserführenden Blasstrom begrenzen, rasch Anfressungen bzw. Erosionen ein, die vermutlich durch die Bildung von Wirbeln in der Strömung auch den Zerfaserungsvorgang beeinträchtigen und möglicherweise eine Ursache für die erwähnte Verstopfung des Düsenkanals waren.Nevertheless, such blow nozzles are used with consideration for the stresses caused by the temperatures experience of the melt and the blowing agent, previously made of stainless steel and similar high-quality, made of heat-resistant materials was hers Lifespan quite limited. Particularly when the canal was set close together, the Walls that limit the fiber-guiding blow stream quickly cause pitting or erosion, which presumably also causes the disintegration process through the formation of eddies in the flow and possibly a cause of the mentioned blockage of the nozzle channel was.
Man hat schon versucht, diese Schwierigkeiten zu mildern, indem man parallel zu den Kanalwandungen
der Blasdüse einen Luftstrom eingebracht hat, der die Wandungen kühlen und die Angriffe der
Schmelze bzw. des heißen Blasmittels von ihnen fernhalten soll. Dieser Vorschlag konnte sich jedoch
nicht durchsetzen, da er, abgesehen von den zusätzlichen Kosten, zwangsläufig einen ungünstig breiten
Blasdüse zur Herstellung von Fasern aus
schmelzflüssigen Silikaten, wie Glas,
Mineralien u. dgl.Attempts have already been made to alleviate these difficulties by introducing an air stream parallel to the duct walls of the blowing nozzle, which is intended to cool the walls and keep them away from attack by the melt or the hot blowing agent. However, this proposal could not prevail because, apart from the additional costs, it inevitably had an unfavorably wide blow nozzle for the production of fibers
molten silicates such as glass,
Minerals and the like
Anmelder:Applicant:
Grünzweig & Hartmann Aktiengesellschaft,Grünzweig & Hartmann Aktiengesellschaft,
Ludwigshafen/Rhein,Ludwigshafen / Rhine,
Bürgermeister-Grünzweig-Str. 1-47Mayor-Grünzweig-Str. 1-47
Als Erfinder benannt:Named as inventor:
Dipl.-Ing. Dr. Sebastian Speth, DuisburgDipl.-Ing. Dr. Sebastian Speth, Duisburg
Kanal erfordert und außerdem dem Blasstrom Energie entzieht.Channel requires and also removes energy from the blow stream.
Es hat sich nun gezeigt, daß sich die Nachteile der bekannten Blasdüse in überraschend einfacher Weise beseitigen lassen, wenn gemäß der Erfindung wenigstens ihre den faserführenden Blasstrom begrenzende Wandung aus Nickel oder einer überwiegend Nickel enthaltenden Legierung gebildet ist.It has now been shown that the disadvantages of the known blower nozzle are surprisingly easier Let eliminate way if according to the invention at least their limiting the fiber-guiding blow stream Wall is formed from nickel or an alloy containing predominantly nickel.
Dazu genügt es bereits, die Kanalwandung mit einer etwa einen Millimeter oder wenig dickeren Schicht von Nickel bzw. seiner Legierung zu plattieren. To do this, it is sufficient to cover the canal wall with one that is about a millimeter or a little thicker Plating a layer of nickel or its alloy.
Es ist ebenfalls möglich, wenigstens den Hauptteil der Blasdüse aus Nickel bzw. seiner Legierung anzufertigen, was besonders in einer aggressiven Atmosphäre im Hinblick auf die Vermeidung die Korrosion fördernder Lokalelemente vorteilhaft sein kann.It is also possible to make at least the main part of the nozzle from nickel or its alloy, what especially in an aggressive atmosphere with a view to avoiding the corrosion promoting local elements can be advantageous.
Zwar kannte man bereits seit langem die höhere »Klebetemperatur« von Nickel, verglichen etwa mit Stahl. Da nur oberhalb dieser Temperatur ein erhitztes Silikat fest mit dem Metall verklebt und sich unterhalb wieder ablösen läßt, hat man von dieser Eigenschaft des Nickels zum Bau von Glasformen u. dgl. schon Gebrauch gemacht.It is true that the higher "sticking temperature" of nickel, compared to, for example, had been known for a long time Stole. Because only above this temperature does a heated silicate stick firmly to the metal and become can be removed again below, one has this property of nickel for the construction of glass molds and the like already made use.
Die tatsächlich zu beobachtende Steigerung der Gestaltsfestigkeit von erfindungsgemäß ausgebildeten Blasdüsen überschreitet jedoch das auf Grund der Eigenschaften von Nickel zu erwartende Ausmaß bei weitem. So konnte z. B. die Kanalbreite von nickelplattierten Blasdüsen gegenüber dem Mindestwert von aus Stahl gefertigten Düsen um 20% und mehr verringert werden, ohne daß ein »Zulaufen« der Düse eintrat. Zugleich zeigte die erfindungsgemäße Blasdüse unter sonst gleichen Bedingungen eine um mindestens das Dreifache höhere Standzeit.The actually observed increase in the structural strength of those designed according to the invention However, blow nozzles exceed the extent to be expected based on the properties of nickel by far. So could z. B. the channel width of nickel-plated air nozzles versus the minimum value of nozzles made of steel can be reduced by 20% and more without an "inflow" entered the nozzle. At the same time, the blow nozzle according to the invention showed otherwise identical conditions a service life that is at least three times longer.
509 720/10*509 720/10 *
Vergleichsversuche mit anderen Metallen, die Nickel hinsichtlich der »Klebetemperatur« zum Teil noch übertreffen, wie Wolfram, sonst aber etwa gleiche Eigenschaften haben, führten durchweg zu negativen Ergebnissen. Diese Metalle führten zumeist früher zum Ausfallen der Blasdüsen als Stahl.Comparative tests with other metals, the nickel with regard to the "sticking temperature" in part even outperforming tungsten, but otherwise having roughly the same properties, consistently led to negative results. These metals mostly caused the blower nozzles to fail earlier than steel.
Claims (3)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1051763D GB1051763A (en) | 1963-04-01 | ||
| DEG37408A DE1204368B (en) | 1963-04-01 | 1963-04-01 | Blow nozzle for the production of fibers from molten silicates such as glass, minerals and the like. like |
| NL6403076A NL6403076A (en) | 1963-04-01 | 1964-03-23 | |
| US355641A US3352653A (en) | 1963-04-01 | 1964-03-30 | Blast nozzle for forming silicate fibers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEG37408A DE1204368B (en) | 1963-04-01 | 1963-04-01 | Blow nozzle for the production of fibers from molten silicates such as glass, minerals and the like. like |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1204368B true DE1204368B (en) | 1965-11-04 |
Family
ID=7125626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEG37408A Pending DE1204368B (en) | 1963-04-01 | 1963-04-01 | Blow nozzle for the production of fibers from molten silicates such as glass, minerals and the like. like |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3352653A (en) |
| DE (1) | DE1204368B (en) |
| GB (1) | GB1051763A (en) |
| NL (1) | NL6403076A (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4146378A (en) * | 1976-12-15 | 1979-03-27 | Marcel Levecque | Fiber formation by use of gas blast attenuation |
| JPS5854101B2 (en) * | 1978-05-08 | 1983-12-02 | 日本板硝子株式会社 | Method for ejecting high-speed jet stream of high-temperature pressurized gas |
| US4300876A (en) * | 1979-12-12 | 1981-11-17 | Owens-Corning Fiberglas Corporation | Apparatus for fluidically attenuating filaments |
| US4316731A (en) * | 1980-09-25 | 1982-02-23 | Owens-Corning Fiberglas Corporation | Method and apparatus for producing fibers |
| AU547777B2 (en) * | 1982-05-06 | 1985-11-07 | Manville Service Corp. | Burner for forming glass fibres |
| DE3509426A1 (en) * | 1985-03-15 | 1986-09-18 | Grünzweig + Hartmann und Glasfaser AG, 6700 Ludwigshafen | DEVICE FOR THE PRODUCTION OF MINERAL FIBERS FROM SILICATIVE RAW MATERIALS, IN PARTICULAR BASALT WITH A MODULAR VISCOSITY MODULE OF AT LEAST 1.5, AFTER THE NOZZLE BLOWING PROCESS |
| DE3515346A1 (en) * | 1985-04-27 | 1986-10-30 | Bayer Ag, 5090 Leverkusen | DEVICE FOR PRODUCING FINE MINERAL FIBERS |
| US4889476A (en) * | 1986-01-10 | 1989-12-26 | Accurate Products Co. | Melt blowing die and air manifold frame assembly for manufacture of carbon fibers |
| DE3704692A1 (en) * | 1987-02-14 | 1988-08-25 | Bayer Ag | METHOD AND DEVICE FOR THE PRODUCTION OF FINE MINERAL FIBERS, ESPECIALLY GLASS FIBERS |
| US5173096A (en) * | 1991-07-10 | 1992-12-22 | Manville Corporation | Method of forming bushing plate for forming glass filaments with forming tips having constant sidewall thickness |
| US5292239A (en) * | 1992-06-01 | 1994-03-08 | Fiberweb North America, Inc. | Apparatus for producing nonwoven fabric |
| US7014441B2 (en) * | 2002-11-01 | 2006-03-21 | Kimberly-Clark Worldwide, Inc. | Fiber draw unit nozzles for use in polymer fiber production |
| RU2275568C2 (en) * | 2004-01-27 | 2006-04-27 | Закрытое акционерное общество "Научно-производственное предприятие "Машпром" (ЗАО НПП "Машпром") | Condenser |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA588233A (en) * | 1959-12-01 | The Duriron Company | Nickel base alloys | |
| US2190840A (en) * | 1938-05-02 | 1940-02-20 | Driver Harris Co | Corrosion resistant alloys |
| US2774630A (en) * | 1952-07-17 | 1956-12-18 | Owens Corning Fiberglass Corp | Blower nozzle |
| FR1311256A (en) * | 1960-10-24 | 1962-12-07 | Gruenzweig & Hartmann | Process for producing fibers from viscous masses and device for implementing the process |
-
0
- GB GB1051763D patent/GB1051763A/en not_active Expired
-
1963
- 1963-04-01 DE DEG37408A patent/DE1204368B/en active Pending
-
1964
- 1964-03-23 NL NL6403076A patent/NL6403076A/xx unknown
- 1964-03-30 US US355641A patent/US3352653A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| GB1051763A (en) | 1900-01-01 |
| US3352653A (en) | 1967-11-14 |
| NL6403076A (en) | 1964-10-02 |
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