US3896203A - Centrifugal method of forming filaments from an unconfined source of molten material - Google Patents

Centrifugal method of forming filaments from an unconfined source of molten material Download PDF

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Publication number
US3896203A
US3896203A US353692A US35369273A US3896203A US 3896203 A US3896203 A US 3896203A US 353692 A US353692 A US 353692A US 35369273 A US35369273 A US 35369273A US 3896203 A US3896203 A US 3896203A
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United States
Prior art keywords
drop
molten material
molten
heat
filament
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Expired - Lifetime
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US353692A
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English (en)
Inventor
Robert E Maringer
Jr Carroll E Mobley
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Battelle Development Corp
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Battelle Development Corp
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Filing date
Publication date
Application filed by Battelle Development Corp filed Critical Battelle Development Corp
Priority to US353692A priority Critical patent/US3896203A/en
Priority to CA196,675A priority patent/CA1039465A/en
Priority to AU67649/74A priority patent/AU474024B2/en
Priority to IE782/74A priority patent/IE39452B1/xx
Priority to IL44651A priority patent/IL44651A/xx
Priority to BE143364A priority patent/BE813902A/xx
Priority to GB1731274A priority patent/GB1470103A/en
Priority to NLAANVRAGE7405312,A priority patent/NL174021C/xx
Priority to SE7405283A priority patent/SE392827B/xx
Priority to LU69900A priority patent/LU69900A1/xx
Priority to AT323974A priority patent/AT337382B/de
Priority to FR7415644A priority patent/FR2226232B1/fr
Priority to DE19742419373 priority patent/DE2419373C3/de
Priority to DK219574AA priority patent/DK142106B/da
Priority to DE2462386A priority patent/DE2462386C3/de
Priority to IT21748/74A priority patent/IT1009975B/it
Priority to DE2462878A priority patent/DE2462878C2/de
Priority to JP49045414A priority patent/JPS5222898B2/ja
Priority to NO741427A priority patent/NO139253C/no
Priority to ES425585A priority patent/ES425585A1/es
Application granted granted Critical
Publication of US3896203A publication Critical patent/US3896203A/en
Priority to AT666076A priority patent/AT347058B/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
    • B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
    • B22F9/10—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying using centrifugal force
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/005—Continuous casting of metals, i.e. casting in indefinite lengths of wire
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0611—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by a single casting wheel, e.g. for casting amorphous metal strips or wires

Definitions

  • the present invention relates to the art of making elongated filamentary articles by rotating a heatextracting member in contact with a source of molten material and solidifying a portion of the molten material as a filamentary product on the surface of the rotating member from where it spontaneously releases and is subsequently collected.
  • the present invention alleviates both oxidation and material evaporation problems since only a small portion of molten material is exposed to the atmosphere at any one time. Furthermore, since the molten material is localized it can be easily protected by a local inert gas shield.
  • a further advantage of the present invention is that the location of filament formation relative to the circumference of the rotating member is variable and can be manipulated to enable filament trajectories not possible where the configuration of filament formation in relation to the rotating member is dictated by the use of an open pool-like source of molten material.
  • the present invention produces a filamentary product without the use of a forming orifice or the need for a pool-like source of molten material thereby improving the prospects of making low-cost filamentary material directly from molten material.
  • the present invention finds significant utility in forming filamentary products from materials that are difficult to mechanically form.
  • the advent of fiber reinforced composites has created a demand for filamentary material of refractory metals and alloys yet those materials are extremely difficult to mechanically form into filament.
  • the present invention is known to be operable in forming such materials into both continuous and discontinuous filament in sizes down to l5 microns in effective diameter. With the present invention providing filamentary materials heretofore only available through expensive and difficult mechanical forming the potential usefulness of fiber reinforced materials is greatly enhanced.
  • the present invention is a method of forming filamentary material directly from a source of molten material.
  • the present invention is not confined to metallic fiber but will form filament from any material having properties in the molten state similar to those of metals.
  • the source of molten material for the present invention is a portion of molten material adherent in a drop-like form to a solid with its shape determined by the surface tension of the molten material.
  • the circumferential edge of a rotating disk-like heat-extracting member is brought into contact with the molten material and a filamentary product is formed adherent to the rotating member. Ultimately the filament spontaneously separates from the rotating member to be collected.
  • the crux of the present invention is the fact that the edge of the heat-extracting member having a significant velocity can contact a small unconfined portion of molten material and extract from it a solid formed into a filament without materially disturbing the stability of the drop-like form of the molten material.
  • the present invention is capable of producing both continuous and controlled length discontinuous filament.
  • FIG. 1 is the side view of a rotating heat-extracting member forming a filament from a drop of molten material pendant on a rod-like source of material.
  • FIG. 2 is the same embodiment as FIG. 1 turned so as to show the shape of the molten material in relation to the heat-extracting member.
  • FIG. 3 is an enlarged cross section of the embodiments of FIGS. 1 and 2 showing the molten material and the configuration of the circumferential edge of the rotating heat-extracting member.
  • FIG. 4 is an enlarged cross section of the present invention in which the pendant drop is produced by having a drop pendant from an orifice leading to a supply of molten material.
  • FIG. 5 is a side view of a prior art rotating member that produces controlled length discontinuous filament when used with the present invention.
  • FIGS. 1 through 3 One embodiment of the present invention is shown in the FIGS. 1 through 3 where a rotating disk-like heatextracting member 30 has a V-shaped edge 32 on a circumferential projection 31.
  • the member 30 is rotated in a direction indicated by the arrow in FIG. I so as to contact a molten portion of the member 20.
  • the member 20 is the material supply for the process with the portion 51 of the member 20 being melted by some means of local heating at 50.
  • the local heating of the portion 50 creates a molten zone adherent to the member 20 but in contact with the moving edge 32.
  • the surface tension of the material in the portion 51 is sufficient to maintain stability even with the edge 32 entering and inducing a shear flow within the liquid portion 51.
  • the unconfined molten material adherent to a solid member will be termed a pendant drop irrespective of the geometric configuration of the drop to the solid member or the force of gravity.
  • unconfined it is meant that the drop is not restrained by any member disposed to oppose the shear forces generated by the forming member passing through the drop.
  • the drop may be supported against the effect of gravity by the presence of the solid member from which the drop is formed by local heating or the presence of an orifice may support the drop but no attempt is made to restrain the drop from the motion induced by the forming member.
  • FIG. 4 shows the present invention in a different embodiment where the pendant drop 51 is not produced by the local heating of a solid but is instead produced by forming a pendant drop adherent to an orifice 40 leading to a supply of molten material 22.
  • the pendant drop need to be spherical in cross section but may be elongated, formed by an elongated orifice so as to permit a plurality of edges to pass through the elongated pendant drop.
  • FIG. 5 illustrates a rotating heat-extracting member 30 having, in this embodiment, semi-circular indentations 33 on the edge 32 of the rotating member.
  • the indentations 33 on the edge attenuate the filament into discrete fibers 11 equal in length to the distance between the indentations.
  • the passage of the edge 32 containing indentations therein through an unconfined drop 51 of molten material does not mate rially disturb the stability of the drop.
  • utilizing the indented rotating member th edge 32 appears to protrude into the drop a distance of less than 10 mils.
  • discontinuous fiber having: a length in the range of from 0.18 to 0.24 inches, an effective diameter in the range of from I to l0 mils has been most effectively produced at linear edge velocities in the range of from 5 to 60 feet/second.
  • the invention is, of course, operable in this embodiment outside the aforementioned preferred range.
  • the source material must have certain properties so as to be operable with the heat-extracting member to form a filament.
  • the molten material should have. at a temperature within 25 percent of its equilibrium melting point in K, the following properties: a surface tension in the range of from l0 to 2,500 dynes/cm, a viscosity in the range of from 10' to l poise and a reasonably discrete melting point (Le, a discontinuous temperature versus viscosity curve).
  • the present invention is known to be operable with most metals as well as chemical compounds. and elements meeting the above criteria.
  • the present invention is operable with metal alloys even where such alloys display a wide temperature range between the first solidification of any component within the alloy (the liquidus temperature) and the temperature at which the lowest melting point compositions solidify (the solidus temperature) yielding a completely solid material.
  • the liquidus temperature the temperature at which the lowest melting point compositions solidify
  • the solidus temperature the temperature at which the lowest melting point compositions solidify
  • the oxidation characteristics of many metals and alloys do not limit their operability with the present invention as depicted in FIGS. 1 through 5.
  • Materials known to be operable without the need for complete oxidation protection include the metals consisting essentially of iron, aluminum, copper, nickel, tin, and zinc. Where it is desired to totally isolate the process from the surrounding atmosphere, the entire apparatus may be confined within a gas tight sealed closure. The process could then be carried out in a vacuum or in inert gas. If the source material has a significant vapor pressure, the composition and pressure of the gas within the enclosure could be manipulated so as to reduce evaporation from the molten material.
  • Such an enclosure would also facilitate the use of local heating means that are inoperable in the atmosphere (e.g., electron beam heating).
  • Metals operable with means to reduce oxidation include those consisting essentially of chromium, titanium, columbium, tantalum, zirconium, magnesium, and molybdenum.
  • the means used to locally heat the material so as to form an adherent pendant drop is not critical to the invention.
  • an oxygen-acetylene torch may be used with many materials and is an acetylene rich flame is used would have the advantage of providing a shielding atmosphere to the pendant drop to reduce oxidation of the molten material.
  • Various heating means may be used including resistance heating, induction heating, electron beam heating etc.
  • the means used for local heating of a solid source would be determined by considering the melting point of the material to be melted, the mass of material to be molten at a given time and the rate at which the source material is to be heated to its melting point. If the heat supplied the source material is excessive, then the pendant drop may become too large to remain stable. If the heat is insufficient, then the rotating filament forming member will not have sufficient molten material to produce a filament of controlled dimension.
  • the means used to create the molten metal supply may be of any conventional type. Some means of heating the material at the orifice may be needed if the configuration of the molten supply is such that the orifice is at a significantly lower operating temperature than the remainder of the molten metal supply.
  • the size of the filamentary product may be controlled by the amount of molten material available to the edge of the rotating member.
  • the size of the filament is defined in terms of its effective diameter.
  • the effective diameter ofa filament having an irregular cross section is equal to the diameter of a filament having a circular cross section and equal in cross-sectional area to the cross section of the non-circular filament.
  • the present invention is known to be capable of producing filament having an effective diameter in the range of from 0.0004 to 0.030 in.
  • FIG. 5 illustrates an embodiment disposed to produce discontinuous fiber of controlled length.
  • the edge of the rotating heatextracting member is indented at the interval desired to be the filament length.
  • the shape of the indentations is not known to be critical and a semi-circular indentation of a depth greater than the thickness of the filament will produce controlled length discontinuous filament.
  • FIGS. 1 through 4 show three embodiments of the present invention.
  • the circumferential edge of the rotating heat-extracting member in those embodiments has a V-shape so as to limit the area of the circumferen tial edge in contact with the pendant drop.
  • the area may also be limited by using an edge having a circular cross section if the radius of that cross section is less than 0.5 inch.
  • a dimensionally inferior product will result from rotating a member in contact with the pendant drop without limiting the area in contact with the molten material.
  • Such a process would not produce a dimensionally consistent product as does the present invention since such a surface generates larger shear forces within the pendant drop that degrade its stability.
  • the pendant drop should be as stable as possible during the process.
  • the stability of the pendant drop as utilized in the present invention is due to the fact the edge of the rotating member passed through the pendant drop is extremely narrow in relation to the width of the drop. This minimizes the disturbance of the drops surface which through surface tension is responsible for the stability of the drop form.
  • Vshaped member depicted in the figures is a preferred embodiment of the invention and such an embodiment would have a radius of curvature at the tip of the V in the range of from 0.0005 to 0.10 inch. Such a member will produce dimensionally consistent filament having a cross-sectional area of less than 0.003 square inches.
  • the diameter of the rotating heat-extracting member is not critical to the invention but a preferred embodiment would have a diameter in the range of from I to 30 inches.
  • the heat-extracting member need not be of any special material but must simply have the capacity to remove heat from the molten material at a rate so as 5 to solidify the material in the form of a filament on the circumferential edge.
  • the heat-extracting member should have either a high intrinsic heat capacity or have good thermal conductivity so as to extract heat from the molten material. Even materials not having either a high heat capacity or thermal conductivity can he used if they are subjected to some means of internal cooling.
  • the present invention is known to be operable with heat-extracting members composed of the metals copper, aluminum, nickel, molybdenum, and iron.
  • a metal member is needed and a nonmetal (as for example, graphite) may be used as the material for the heat-extracting member.
  • the member may also be composed of several different materials so as to combine the properties of each to optimize the performance of the rotating heat-extracting member.
  • the geometric configuration of the various elements of the embodiment shown in the figures is not the only operable configuration. However. with the pendant drop being unconfined, the force of gravity must always be considered. The shape of the pendant drop is determined by gravity, the surface tension of the molten material and the viscous drag induced by the contact of the rotating member. Where the pendant drop is contacting the rotating member in the upper l80 of its eir cumferenec, the drop is also supported to some degree by the edge of the wheel and the stability of the pen dant drop in that preferred embodiment is improved over other configurations.
  • pendant drop is used throughout the specification and the term is clearly applicable for the embodiments having the drop on the upper 180 of the forming member it should be understood that the invention is also operable with what is termed a sessile drop. Looking at FIG. 1 if the location of the drop were l80 from its indicated location (i.e., if the member were inverted and contacted the member 30 at its lower extremity) the drop would properly be called a sessile drop.
  • the invention is operable in both configu rations and the drop is referred to as a pendant drop in this specification.
  • the ultimate size of the filamentary product is deter mined by the amount of molten material available at the circumferential edge of the heat-extracting memher, the shape of the edge introduced to the pendant drop, the viscosity of the molten material and the speed at which the edge is passed through the pendant drop.
  • the invention is known to be operable where the linear velocity of the circumferential edge is in the range of from 3 to 100 feet per second.
  • the upper limit does not appear to be a limitation of the invention but merely the effect equipment limitations made apparent by the high rotational speeds required to generate that linear rate of the edge of the rotating member.
  • EXAMPLE I A drop of liquid tin was formed on the end of a solid bar of tin by locally heating the end with a propane torch. The drop was adherent to the l inch by V4 inch cross section of the bar and was manually brought into contact with the circumferential edge of a rotating heat-extracting member.
  • the rotating member was a water cooled copper disk /2 inch thick, 8 inches in diameter having a V-shaped peripheral edge. The angle between the faces of the V was 90 and the radius of curvature at the circumferential edge of the V was approximately 0.005 inch.
  • the heat-extracting member was rotated at various speeds in the range of from 100 to l .500 rpm (yelding linear velocities at the circumferential edge of from 3.9 to 59 feet/second).
  • the cross-sectional area of the fiber generally decreased with increasing rotational speed of the heatextracting member.
  • EXAMPLE 11 The same heat-extracting member as was used in Example l was rotated at 250 rpm (9.8 feet/second at the circumferential edge) in contact with a drop of molten A1 formed by locally melting the end on an alumina rod with an oxyacethylene torch. Short lengths of A1 0 fiber approximately 1 inch long were produced.
  • EXAMPLE Ill The same heat-extracting member as used in the previous examples was rotated at 1,500 rpm (59 feet/second at the circumferential edge) in contact with a drop of molten 304 stainless steel (18.020.0 chromium, 8.0-1 1.0 nickel, 2.0 oxjacetylene maximum of manganese and 0.08 maximum carbon, all in weight percentages with the balance iron).
  • the drop was formed by locally melting the end of a 3/16 inch diameter rod using an acetylene-rich oyacetylene torch.
  • the flame of the torch was intentionally acetylene rich so as to provide an oxygen deficient gas surrounding the molten drop.
  • EXAMPLE IV The same heat-extracting member as used in the pre vious examples was rotated at speeds in the range of from 500 to 1,500 rpm in contact with a drop of a heatresistant alloy N- l 55 (.15 carbon, 1.50 manganese, .50 silicon, 21.0 chromium, 20.0 nickel, 3.0 cobalt, 2.5 tungsten, 1.0 columbium. in nominal weight percent with the balance iron).
  • the drop was formed adherent to a solid rod of the alloy by locally melting the end of the rod with an acetylene rich oxyacetylene flame. Fibers having lengths of several feet, cross'sectional areas of approximately 1.5 X 10 square inches and effective diameters ofapproximately 4.3 X inches were produced.
  • EXAMPLE V A cold rolled steel heat-extracting member of the same general shape as that used in the previous examples was used to produce pure chromium fiber.
  • the heat-extracting member was water cooled and had a radius at its circumferential edge of 0.005 inch.
  • the heat-extracting member was rotated at speeds in the range of from 200 to 1,500 rpm in contact with a drop of molten chromium produced by locally heating the end of a commercially pure chromium rod with an oxyacetylene torch. Fiber having lengths up to several inches, effective diameters of approximately 3 X 10' inches and cross-sectional areas of approximately 7 X 10 square inches were produced.
  • EXAMPLE VI A cold rolled steel heat-extracting member of the same general dimensions as those used in the previous examples was used to produce controlled length discontinuous fiber.
  • the circumferential edge of the member (having a radius of 0.005 inch) included semicircular indentations approximately 0.010 inch deep and spaced approximately 0.25 inch along the circumference.
  • the indentations were disposed to attenuate the filament into fibers of a length equal to that of the distance between indentations (.20 inch).
  • the top of the water cooled heat-extracting member was brought into contact with a drop of molten 304 stainless steel adherent to the lower extremity of a vertically suspended solid rod of the same material.
  • the drop was produced by locally heating the stainless steel rod with an oxyacetylene torch.
  • the heat-extracting member was rotated at a speed in the range of from 200 to 1,000 rpm and discontinuous fiber approximately 0.20 inch in length and 5 X 10 square inches in cross-sectional area were produced.
  • EXAMPLE VII A copper heat-extracting member having dimensions similar to the member used in Example 1 through [V was used to form filament of commercially pure titanium.
  • the filaments were formed in a bell jar vacuum system at a pressure of approximately 10" mm of mercury.
  • a vertically suspended .25 inch diameter rod of titanium was locally melted at its lower extremity by an electron beam.
  • the molten drop of titanium was contacted by the circumferential edge of the heatextracting member rotating at 350 rpm (linear velocity at the edge was 13.7 feet/second) without the use of internal water cooling. Titanium fiber in lengths ranging from one to several feet were produced.
  • the crosssectional area of the fiber ranged from 5.5 X 10" to 1.2 X 10 square inches.
  • Example VIII The same system as was used in Example Vll was used with two different heat-extracting members to produce commercially pure columbium (niobium) filament.
  • the rotating heat-extracting members were of the same dimensions as that of Example Vll one being copper and the other molybdenum.
  • the columbium rod was melted in the same manner as the titanium rod of the previous example. Approximately the same rotational speeds were used in two separate runs. With the copper heat-extracting member filament having a cross-sectional area of 8 X 10 square inches was produced.
  • the molybdenum member produced filament having an area of 2 X 10 square inches. Both heatextracting members produced filament of lengths up to 1 foot.
  • a method of making filamentary material comprising the steps of:
  • said metal is an alloy having a base metal selected from the group consisting of: iron. aluminum, copper, and nickel.
  • V-shaped projections include a plurality of indentations disposed to attenuate said filament into discontinuous fiber having a length approximating the circumferential distance along the tip of said V-shaped projection between said indentations.
  • a method of making filamentary material comprising the steps of:

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Inorganic Fibers (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Moulding By Coating Moulds (AREA)
US353692A 1973-04-23 1973-04-23 Centrifugal method of forming filaments from an unconfined source of molten material Expired - Lifetime US3896203A (en)

Priority Applications (21)

Application Number Priority Date Filing Date Title
US353692A US3896203A (en) 1973-04-23 1973-04-23 Centrifugal method of forming filaments from an unconfined source of molten material
CA196,675A CA1039465A (en) 1973-04-23 1974-04-03 Method and apparatus for forming filaments from an unconfined source
AU67649/74A AU474024B2 (en) 1973-04-23 1974-04-08 Centrifugal method of forming filaments froman unconfined source
IE782/74A IE39452B1 (en) 1973-04-23 1974-04-11 Method of and apparatus for making filamentary material
IL44651A IL44651A (en) 1973-04-23 1974-04-17 Method of forming filaments from an unconfined source of molten material contacted by a rotating member
BE143364A BE813902A (fr) 1973-04-23 1974-04-18 Methode et appareil pour former des filaments a partir d'une source non-confinee de materiau en fusion
NLAANVRAGE7405312,A NL174021C (nl) 1973-04-23 1974-04-19 Werkwijze voor het gieten van draden of vezels uit een metaalsmelt.
SE7405283A SE392827B (sv) 1973-04-23 1974-04-19 Forfarande for tillverkning av trad samt anordning for utforande av forfarandet
LU69900A LU69900A1 (no) 1973-04-23 1974-04-19
AT323974A AT337382B (de) 1973-04-23 1974-04-19 Vorrichtung zum stranggiessen von schmelzflussigen anorganischen materialien
GB1731274A GB1470103A (en) 1973-04-23 1974-04-19 Methods of and apparatus for making filamentary material
NO741427A NO139253C (no) 1973-04-23 1974-04-22 Framgangsmaate og anordning for strengstoeping av traader
DK219574AA DK142106B (da) 1973-04-23 1974-04-22 Fremgangsmåde og apparat til fremstilling af fast filament direkte fra en smelte.
DE2462386A DE2462386C3 (de) 1973-04-23 1974-04-22 Vorrichtung zum Stranggießen von Drähten oder Fäden aus einer Schmelze
IT21748/74A IT1009975B (it) 1973-04-23 1974-04-22 Metodo ed apparecchiatura per formare filamenti da una sorgente non limitata di materiale fuso
DE2462878A DE2462878C2 (de) 1973-04-23 1974-04-22 Verfahren und Vorrichtung zum diskontinuierlichen Stranggießen von Draht- oder Faden-Abschnitten aus einer Schmelze
JP49045414A JPS5222898B2 (no) 1973-04-23 1974-04-22
DE19742419373 DE2419373C3 (de) 1973-04-23 1974-04-22 Verfahren zum Giessen von Strängen
FR7415644A FR2226232B1 (no) 1973-04-23 1974-04-22
ES425585A ES425585A1 (es) 1973-04-23 1974-04-23 Procedimiento y aparato para fabricar material filamenta- rio.
AT666076A AT347058B (de) 1973-04-23 1976-09-08 Verfahren und vorrichtung zum stranggiessen von draehten oder faeden aus einer schmelze

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US353692A US3896203A (en) 1973-04-23 1973-04-23 Centrifugal method of forming filaments from an unconfined source of molten material

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US3896203A true US3896203A (en) 1975-07-22

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US353692A Expired - Lifetime US3896203A (en) 1973-04-23 1973-04-23 Centrifugal method of forming filaments from an unconfined source of molten material

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US (1) US3896203A (no)
JP (1) JPS5222898B2 (no)
AT (1) AT337382B (no)
AU (1) AU474024B2 (no)
BE (1) BE813902A (no)
CA (1) CA1039465A (no)
DE (2) DE2462878C2 (no)
DK (1) DK142106B (no)
ES (1) ES425585A1 (no)
FR (1) FR2226232B1 (no)
GB (1) GB1470103A (no)
IE (1) IE39452B1 (no)
IL (1) IL44651A (no)
IT (1) IT1009975B (no)
LU (1) LU69900A1 (no)
NL (1) NL174021C (no)
NO (1) NO139253C (no)
SE (1) SE392827B (no)

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4124664A (en) * 1976-11-30 1978-11-07 Battelle Development Corporation Formation of filaments directly from an unconfined source of molten material
EP0000926A1 (en) * 1977-08-22 1979-03-07 Battelle Development Corporation Method and apparatus for producing flakes from molten material
US4150708A (en) * 1977-12-05 1979-04-24 Gte Sylvania Incorporated Apparatus and method of making filaments
US4153655A (en) * 1976-07-23 1979-05-08 Minnick Leonard J Products from molten fly ash and scrubber sludge including fly ash
US4157729A (en) * 1977-11-21 1979-06-12 Gte Sylvania Incorporated Apparatus and method for producing filaments
WO1979001054A1 (en) * 1978-05-11 1979-12-13 Allied Chem Chill casting of metal strip employing a molybdenum chill surface
US4215084A (en) * 1978-05-03 1980-07-29 The Battelle Development Corporation Method and apparatus for producing flake particles
US4217089A (en) * 1975-02-03 1980-08-12 Gte Products Corporation Photoflash lamp
US4242069A (en) * 1979-01-24 1980-12-30 Battelle Development Corporation Apparatus for producing flake
US4244722A (en) * 1977-12-09 1981-01-13 Noboru Tsuya Method for manufacturing thin and flexible ribbon of dielectric material having high dielectric constant
US4247722A (en) * 1980-03-05 1981-01-27 E. I. Du Pont De Nemours And Company Hydrogenation of butadienepolyperoxide with activated phase-pure NiAl3
US4257830A (en) * 1977-12-30 1981-03-24 Noboru Tsuya Method of manufacturing a thin ribbon of magnetic material
US4259271A (en) * 1976-07-23 1981-03-31 Minnick L John Method of making shot from molten siliceous-aluminous composition
US4265682A (en) * 1978-09-19 1981-05-05 Norboru Tsuya High silicon steel thin strips and a method for producing the same
US4285386A (en) * 1979-03-16 1981-08-25 Allied Chemical Corporation Continuous casting method and apparatus for making defined shapes of thin sheet
US4290993A (en) * 1980-01-10 1981-09-22 Battelle Development Corp. Method and apparatus for making nodule filament fibers
US4326579A (en) * 1980-01-23 1982-04-27 National-Standard Company Method of forming a filament through melt extraction
US4339508A (en) * 1977-11-28 1982-07-13 Shiro Maeda Method for manufacturing a thin and flexible ribbon of superconductor material
US4363769A (en) * 1977-11-23 1982-12-14 Noboru Tsuya Method for manufacturing thin and flexible ribbon wafer of _semiconductor material and ribbon wafer
US4394332A (en) * 1980-06-27 1983-07-19 Battelle Memorial Institute Crucibleless preparation of rapidly solidified fine particulates
US4475583A (en) * 1980-05-09 1984-10-09 Allegheny Ludlum Steel Corporation Strip casting nozzle
US4479528A (en) * 1980-05-09 1984-10-30 Allegheny Ludlum Steel Corporation Strip casting apparatus
US4484614A (en) * 1980-05-09 1984-11-27 Allegheny Ludlum Steel Corporation Method of and apparatus for strip casting
US4525223A (en) * 1978-09-19 1985-06-25 Noboru Tsuya Method of manufacturing a thin ribbon wafer of semiconductor material
US4552199A (en) * 1982-04-08 1985-11-12 Nippon Yakin Kogyo Co., Ltd. Apparatus for producing flake particles
US4589471A (en) * 1984-10-29 1986-05-20 General Electric Company Method for rapid solidification of titanium alloys by melt extraction
US4617981A (en) * 1980-05-09 1986-10-21 Battelle Development Corporation Method and apparatus for strip casting
US5127364A (en) * 1989-12-18 1992-07-07 General Electric Company Apparatus for making A-15 type tape superconductors which includes means to melt a wire at its tip so a beam is formed and means for wiping the bead onto a continuous tape substrate
FR2792394A1 (fr) 1999-04-16 2000-10-20 Gaz De France Gdf Service Nati Procede pour realiser une surface d'accrochage de flammes
US20030120116A1 (en) * 1999-07-08 2003-06-26 Daniel Ostgard Fixed-bed Raney-type catalysts
KR20140112584A (ko) * 2013-03-05 2014-09-24 세종대학교산학협력단 유사골 다공성 금속 구조체 및 이의 제조방법
CN107414039A (zh) * 2017-07-29 2017-12-01 衡阳功整钢纤维有限公司 不锈钢纤维及其制备方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4142571A (en) * 1976-10-22 1979-03-06 Allied Chemical Corporation Continuous casting method for metallic strips
JPS53116224A (en) * 1977-03-23 1978-10-11 Nat Res Inst Metals Preparation of thin wire of high melting point metal
DE19710253A1 (de) * 1997-03-13 1998-09-17 Mann & Hummel Filter Verfahren zum Herstellen von Körpern aus Kunststoff
JP5648885B2 (ja) * 2009-07-07 2015-01-07 住友電気工業株式会社 マグネシウム合金板、マグネシウム合金部材、及びマグネシウム合金板の製造方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US905758A (en) * 1908-03-14 1908-12-01 Edward Halford Strange Process of manufacturing thin sheets, foil, strips, or ribbons of zinc, lead, or other metal or alloy.
US3522836A (en) * 1966-07-06 1970-08-04 Battelle Development Corp Method of manufacturing wire and the like
US3710842A (en) * 1970-12-28 1973-01-16 Battelle Development Corp Method of producing controlled length metal filaments
US3812901A (en) * 1973-01-30 1974-05-28 Battelle Development Corp Method of producing continuous filaments using a rotating heat-extracting member

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190924320A (en) * 1909-10-22 1910-10-24 Edward Halford Strange Improvements in Means for the Manufacture of Metal Strips or Sheets.
US2825108A (en) 1953-10-20 1958-03-04 Marvaland Inc Metallic filaments and method of making same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US905758A (en) * 1908-03-14 1908-12-01 Edward Halford Strange Process of manufacturing thin sheets, foil, strips, or ribbons of zinc, lead, or other metal or alloy.
US3522836A (en) * 1966-07-06 1970-08-04 Battelle Development Corp Method of manufacturing wire and the like
US3710842A (en) * 1970-12-28 1973-01-16 Battelle Development Corp Method of producing controlled length metal filaments
US3812901A (en) * 1973-01-30 1974-05-28 Battelle Development Corp Method of producing continuous filaments using a rotating heat-extracting member

Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4217089A (en) * 1975-02-03 1980-08-12 Gte Products Corporation Photoflash lamp
US4259271A (en) * 1976-07-23 1981-03-31 Minnick L John Method of making shot from molten siliceous-aluminous composition
US4153655A (en) * 1976-07-23 1979-05-08 Minnick Leonard J Products from molten fly ash and scrubber sludge including fly ash
US4124664A (en) * 1976-11-30 1978-11-07 Battelle Development Corporation Formation of filaments directly from an unconfined source of molten material
US4154284A (en) * 1977-08-22 1979-05-15 Battelle Development Corporation Method for producing flake
EP0000926A1 (en) * 1977-08-22 1979-03-07 Battelle Development Corporation Method and apparatus for producing flakes from molten material
US4157729A (en) * 1977-11-21 1979-06-12 Gte Sylvania Incorporated Apparatus and method for producing filaments
US4363769A (en) * 1977-11-23 1982-12-14 Noboru Tsuya Method for manufacturing thin and flexible ribbon wafer of _semiconductor material and ribbon wafer
US4339508A (en) * 1977-11-28 1982-07-13 Shiro Maeda Method for manufacturing a thin and flexible ribbon of superconductor material
US4150708A (en) * 1977-12-05 1979-04-24 Gte Sylvania Incorporated Apparatus and method of making filaments
US4244722A (en) * 1977-12-09 1981-01-13 Noboru Tsuya Method for manufacturing thin and flexible ribbon of dielectric material having high dielectric constant
US4257830A (en) * 1977-12-30 1981-03-24 Noboru Tsuya Method of manufacturing a thin ribbon of magnetic material
US4215084A (en) * 1978-05-03 1980-07-29 The Battelle Development Corporation Method and apparatus for producing flake particles
EP0008604B1 (en) * 1978-05-03 1983-04-20 Battelle Development Corporation Method and apparatus for producing flake particles from molten material
WO1979001054A1 (en) * 1978-05-11 1979-12-13 Allied Chem Chill casting of metal strip employing a molybdenum chill surface
US4525223A (en) * 1978-09-19 1985-06-25 Noboru Tsuya Method of manufacturing a thin ribbon wafer of semiconductor material
US4265682A (en) * 1978-09-19 1981-05-05 Norboru Tsuya High silicon steel thin strips and a method for producing the same
US4242069A (en) * 1979-01-24 1980-12-30 Battelle Development Corporation Apparatus for producing flake
US4285386A (en) * 1979-03-16 1981-08-25 Allied Chemical Corporation Continuous casting method and apparatus for making defined shapes of thin sheet
US4290993A (en) * 1980-01-10 1981-09-22 Battelle Development Corp. Method and apparatus for making nodule filament fibers
US4326579A (en) * 1980-01-23 1982-04-27 National-Standard Company Method of forming a filament through melt extraction
US4247722A (en) * 1980-03-05 1981-01-27 E. I. Du Pont De Nemours And Company Hydrogenation of butadienepolyperoxide with activated phase-pure NiAl3
US4617981A (en) * 1980-05-09 1986-10-21 Battelle Development Corporation Method and apparatus for strip casting
US4475583A (en) * 1980-05-09 1984-10-09 Allegheny Ludlum Steel Corporation Strip casting nozzle
US4479528A (en) * 1980-05-09 1984-10-30 Allegheny Ludlum Steel Corporation Strip casting apparatus
US4484614A (en) * 1980-05-09 1984-11-27 Allegheny Ludlum Steel Corporation Method of and apparatus for strip casting
US4394332A (en) * 1980-06-27 1983-07-19 Battelle Memorial Institute Crucibleless preparation of rapidly solidified fine particulates
US4552199A (en) * 1982-04-08 1985-11-12 Nippon Yakin Kogyo Co., Ltd. Apparatus for producing flake particles
US4589471A (en) * 1984-10-29 1986-05-20 General Electric Company Method for rapid solidification of titanium alloys by melt extraction
US5127364A (en) * 1989-12-18 1992-07-07 General Electric Company Apparatus for making A-15 type tape superconductors which includes means to melt a wire at its tip so a beam is formed and means for wiping the bead onto a continuous tape substrate
FR2792394A1 (fr) 1999-04-16 2000-10-20 Gaz De France Gdf Service Nati Procede pour realiser une surface d'accrochage de flammes
US20030120116A1 (en) * 1999-07-08 2003-06-26 Daniel Ostgard Fixed-bed Raney-type catalysts
KR20140112584A (ko) * 2013-03-05 2014-09-24 세종대학교산학협력단 유사골 다공성 금속 구조체 및 이의 제조방법
KR101657741B1 (ko) 2013-03-05 2016-09-19 세종대학교산학협력단 유사골 다공성 금속 구조체 및 이의 제조방법
CN107414039A (zh) * 2017-07-29 2017-12-01 衡阳功整钢纤维有限公司 不锈钢纤维及其制备方法
CN107414039B (zh) * 2017-07-29 2019-03-29 衡阳功整钢纤维有限公司 不锈钢纤维及其制备方法

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FR2226232B1 (no) 1979-01-26
JPS5222898B2 (no) 1977-06-21
DE2462386B2 (de) 1980-03-13
AU474024B2 (en) 1976-07-08
LU69900A1 (no) 1974-07-18
DE2462878C2 (de) 1983-01-05
DE2419373B2 (de) 1977-05-18
DK142106C (no) 1981-02-02
AT337382B (de) 1977-06-27
DK142106B (da) 1980-09-01
NL174021C (nl) 1984-04-16
CA1039465A (en) 1978-10-03
NO139253B (no) 1978-10-23
NO741427L (no) 1974-10-24
GB1470103A (en) 1977-04-14
IT1009975B (it) 1976-12-20
NL174021B (nl) 1983-11-16
NO139253C (no) 1979-01-31
IE39452B1 (en) 1978-10-11
IE39452L (en) 1974-10-23
SE392827B (sv) 1977-04-25
ES425585A1 (es) 1976-06-16
IL44651A (en) 1980-02-29
AU6764974A (en) 1975-10-09
BE813902A (fr) 1974-08-16
FR2226232A1 (no) 1974-11-15
DE2462386A1 (de) 1977-01-20
IL44651A0 (en) 1974-06-30
DE2462386C3 (de) 1980-11-06
DE2419373A1 (de) 1974-11-21
ATA323974A (de) 1976-10-15
NL7405312A (no) 1974-10-25
JPS5011935A (no) 1975-02-06

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