US3844021A - Method of simultaneously drawing a plurality of wires and apparatus therefor - Google Patents

Method of simultaneously drawing a plurality of wires and apparatus therefor Download PDF

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Publication number
US3844021A
US3844021A US00379658A US37965873A US3844021A US 3844021 A US3844021 A US 3844021A US 00379658 A US00379658 A US 00379658A US 37965873 A US37965873 A US 37965873A US 3844021 A US3844021 A US 3844021A
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United States
Prior art keywords
bound
wires
carrier
drawn
compound
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Expired - Lifetime
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US00379658A
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English (en)
Inventor
K Hamada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Seisen Co Ltd
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Nippon Seisen Co Ltd
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/04—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of rods or wire
    • B21C37/047—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of rods or wire of fine wires
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49801—Shaping fiber or fibered material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4981—Utilizing transitory attached element or associated separate material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12229—Intermediate article [e.g., blank, etc.]
    • Y10T428/12264—Intermediate article [e.g., blank, etc.] having outward flange, gripping means or interlocking feature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12389—All metal or with adjacent metals having variation in thickness
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12486—Laterally noncoextensive components [e.g., embedded, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12861—Group VIII or IB metal-base component
    • Y10T428/12951—Fe-base component
    • Y10T428/12972—Containing 0.01-1.7% carbon [i.e., steel]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2973—Particular cross section

Definitions

  • a plurality of filaments are Simu taneou y dra by disposing the plurality in an apparatus comprising a [52] 11.8.
  • the trough formed in the body comprises "jg 11 1 1 6 a deformable pleat having an excess piece. Closure of the trough is achieved by calking the excess piece of [56] References Cited pleat.
  • the method and apparatus are particularly useful in drawing stainless steel filaments.
  • the present invention provides a means whereby many material wires can be drawn veryefficiently by using a carrier of a special shape, thus, leading to a tremendous cost reduction in practicing the heretofore described processes.
  • An object of the present invention is to simultaneously draw many material wires.
  • a further object of the present invention is to provide a method of efficiently drawing a plurality of material wires.
  • a further object of the present invention is to draw stainless steel wires without sintering them in the working step.
  • Another object of the present invention is to provide a long wire drawing carrier to be applied to a method of simultaneously drawing a plurality of material wires.
  • FIG. l is a perspective view of a carrier with material wires on one side in accordance herewith;
  • FIG. 2 is a perspective view similar to FIG. 1 but wherein the material wires are bound;
  • FIG. 3 is a perspective view of an alternate embodiment of the present invention.
  • FIG. 4 is a perspective view of the embodiment of FIG. 3 with the material wires disposed therewithin;
  • FIG. 5 is a perspective view of the embodiment of FIG. 3, wherein the material wires are bound.
  • FIG. 6 is a perspective view of many bound bodies formed by utilizing the apparatus shown in FIG. 1, and as collected in a long carrier of the same shape;
  • FIG. 7 is a perspective view of many bound bodies DESCRIPTION OF THE PREFERRED EMBODIMENTS Now with reference to the drawing and, in particular, FIG. 1, there is depicted apparatus comprising a long carrier 1 of star-shaped cross-section.
  • the carrier 1 has a plurality of pleats 2 each forming a trough 2 continuously in the lengthwise direction on the peripheral surface.'All of the pleats 2' are made to project in advance so as to bend in a fixed direction.
  • the side of each of the pleats 2' forms a side wall 2" of the troughs 2.
  • the physical characteristics and chemical characteristics of the material used to make the carrier or long carrier 1 should be selected depending on the material wires to be drawn as described later. Particularly, a material which is similar to the material of the material wires to be drawn with regard to tensile strength and rolling characteristics, but which is soluble in a chemical solvent which does not dissolve the material wires,
  • the carrier 1 In the practice of the present invention it is preferred to fabricate the carrier 1 from a medium carbon steel, especially when drawing stainless steel wires.
  • medium carbon steel reduces wire breakage in the case of the later described wires while providing a composition to the long carrier which may be chemically dissolved and separated from the drawn filaments.
  • the pleat 2 is thick and the excess piece of the pleat 2 overhanging the open part of the trough 2 is formed as a sharp edge.
  • the excess piece of the pleat 2' need not always be sharp as illustrated but may be so soft as to be easily deformed.
  • a metal hard to form an alloy with the material of the material wires to be drawn or to melt-spray a metal of such property on the inside of the long carrier.
  • Such metal is introduced to the long carrier 1 in order to prevent the material wires 3 from being sintered by heat with the long carrier or with each other, when drawing them.
  • the metal may be imparted when fitting the long carrier as described later.
  • One particularly useful metal is copper which can be imparted by plating the stainless steel wires.
  • the material wires 3 to be drawn are disposed or contained as a plurality of bundles in each trough 2. Each material wire 3 is coated with a metal hard to form an alloy with the material of the wire as above-described.
  • the wires may be coated simultaneously by imparting a molten metal to the long carrier 1 when the material wires 3 are contained in the troughs 2 thereof. Furthermore, it is desirable to apply copper to the molten metal when the material wires 3 to be drawn are stainless steel. Additionally, it is desirable to bind the material wires 3 substantially in parallel with each other and to arrange the material wires so as not to intersect each other within the trough 2. However, depending on the contrivance in the case of drawing the wires, the bundle of the material wires 3 may be twisted.
  • the long carrier 1 containing the plurality of bundled material wires 3 in each trough 2 has the pleats 2 forming the side walls 2" of the troughs 2 calked with a forming die so as to enclose the material wires 3 in each trough 2.
  • a bound body 4 is, thus, formed by enclosing the material wires 3 in the long carrier 1.
  • the pleats 2' which are easily deformed as described above, overlap each other to form a tube.
  • the formation of the tube is also achieved in the embodiment shown in FIG. 3 wherein the carrier is formed by protruding the tip parts of the pleats so as to overhang the troughs 2 (FIG. 5).
  • FIG. 4 shows another embodiment of the instant invention where many material wires 3 are collected.
  • this carrier is put in a forming die, (FIG. 8)
  • the pleats 2' will be overlapped on each other to form a tube in which many material wires are bound in each trough.
  • the overlapping of these pleats 2 makes deformation and shrinkage easy when pulling the entire body out of the die.
  • Either a generally used die or a roll die can be used for the forming die when enclosing the material wires 3 in the long carrier 1.
  • a roll die it is set to oppose the excess pieces of the side walls of the troughs 2 and to press them in the centripetal direction.
  • the material wires 3 are coated, tightly bound and contained in the long carrier 1. It is very important to the subsequent wire drawing step that the material wires 3 be tightly bound in the long carrier 1. Unless such material wires 3 are uniformly and tightly bound, during the drawing process, only a part of the material wires 3 will be subjected to the wire drawing force and the material wires will be broken.
  • the bound body 4 comprising the long carrier 1 and the plurality of the material wires 3 can be, either, warm-drawn or cold-drawn.
  • cold drawing is used because of its working efficiency and quality control.
  • the bound body 4 cold-workability must be imparted to the bound body 4 in advance, such as by heat-treatment or the like.
  • cold-workability means a property by which the long carrier and the material wires coated and bound with the carrier can endure a high elongating degree as a bound body.
  • the heattreatment for imparting the cold-workability can be carried out as follows: the bound body 4 is first heated to 960C and then quenched to 450 to 550C and kept thereat for a fixed time. When subjected to this treatment, the stainless steel wires within the body will be softened by annealing and the working history of the stainless steel wires before the heat treatment will vanish and the material of the wires will recrystallize to an easily workable austenite structure.
  • AISI American Iron and Steel Institute
  • the medium carbon steel long carrier transforms to a sorbite structure high in toughness and adapted to be worked.
  • the sorbite structure in which carbide is finely distributed will be hard to embrittle even if a high degree of working is applied.
  • This heat-treatment is utilized exclusively for the production of hard steel wires and is called patenting.
  • the tensile strength of the stainless steel when worked into an austenite structure and the tensile strength of when the medium carbon steel, modified by working it into to a sorbite structure, are substantially so similar to each other that, when a bound body is formed, the resistances inside and outside the bound body when the wires are drawn will substantially coincide with each other and the bound body will be integrally deformed and elongated.
  • the cooling is too quick after the heating, a perfect sorbite structure cannot, usually, be obtained in the long carrier 1. It is therefore desirable to carry out a lead patenting. That is to say, it is quenched above the Ac transformation point in a monoxidizing atmosphere so as to be thermostatically transformed in a lead bath. If the lead film in such case is applied to the surface of the outer fitting material, it will be able to be used as a lubricant for drawing the wires with a die. Further, by lead patenting, the stainless steel wires 3 will be modified to an austenite structure; the long carrier 1 will be substantially of a sorbite structure so as to be cold-workable, and a lubrication will also be given by the lead coating.
  • This heat-treating step must be carried out carefully lest a bad influence be given to the material wires 3 and the cooling should be too quick.
  • the bound body 4 thus rendered cold-workable is then subjected to drawing with a die.
  • a die In the case of the present invention, an ordinary die is proper but a roll die can be used.
  • the wire drawing step is carried out by using a wire drawing machine (not illustrated) provided with a die and capstan having a performance sufficient to draw the bound body 4.
  • the wire drawing velocity must be adjusted and set by a selective combination of the long carrier 1 and material wires 3.
  • the material wires 3 are pressed from outside so as to be reduced in the diameter, deformed and contacted with each other.
  • the long carrier 1 is also collapsed at the overlapped end side edges to be integral with the wires.
  • wires of a diameter smaller than that of the material wires are formed as a whole. It should be noted that care must be taken lest the material wires 3 should be sintered.
  • the material wires will be elongated not once but, rather, the bound body will be graduallyrepeatedly elogated until a preset wire diameter is reached while interposing a patenting treatment and lubricating treatment, taking care lest a bad influence should be given to the material wires 3.
  • the bound body 4 is repeatedly drawn until the material wires 3 enclosed in the long carrier 1 are reduced to the desired or objective diameter.
  • a plurality of material wires 3 are collected as a bundle and a plurality of such bundles are bound with one long carrier 1. Therefore, the entire body will increase in the apparent thickness and one integrally bound body will be worked. Therefore, it can be drawn considerably highly as it is.
  • finer filaments or metal fibers can be obtained by a method wherein wire drawing is repeated by coating and binding a plurality of drawn bound bodies 4 or a plurality of undrawn bound bodies 4 with another large long carrier.
  • a plurality of bound bodies 4 are first coated along with a long carrier 1'.
  • the long carrier 1 is similar to the long carrier 1 of FIG. 1.
  • the open part of each trough 2 of carrier 1' is closed to form a compound bound body of a larger diameter.
  • the long carrier 1" shown in FIG. 7 is a band-shaped metal plate. It is, initially, formed with a trough-shaped cross-section, in which is dispsoed a plurality of such bound bodies 4 as described above. The carrier is, then, finished in a tubular shape. In such case the lengthwise end parts of the long carrier 1 are overlapped. As shown in FIG. 8, the forming die for the carrier 1' of FIG. 7 has a recessed part 5 to guide the parts to be overlapped. By thus overlapping the lengthwise end parts of the long carrier 1', the fastening and reduction by the die can be easily achieved.
  • a roll die can be used to draw compound bound bodies.
  • the compound bound bodies are drawn and the drawn compound bound bodies further form a new compound bound body which is further drawn.
  • drawn wires of a proper or desired wire diameter are obtained It is desirable to carry out the patenting in and after the first wire drawing.
  • Case coating should always be interposed when binding and drawing are repeated. Case coating will be indispensable particularly when each material wire is highly drawn to the fineness of the theoretically possible limit. In such drawn bound body (or,
  • the long carrier 1 and given metal compositions are chemically removed by a pickling process.
  • the present method many material wires 3 are simultaneously drawn as a plurality of bundles. Therefore, the efficiency is very high; one integral body is drawn as a whole; deformation and reduction are made easy by the overlapping action of the pleats; the material wires 3 are tightly bound with each other and are bound integrally with the long carrier. Thus, the power required for the work is reduced and a remarkable effect is developed in preventing breaking of the wires.
  • a method of simultaneously drawing a plurality of wires comprising the steps of:
  • each trough is formed from a pleat having an excess-piece thereof, and each trough is closed by calking the excess piece.
  • a wire drawing carrier comprising an elongated body having a plurality of troughs formed on the peripheral surface thereof, each of the troughs comprising a deformable pleat extending along the axis of the body.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Extraction Processes (AREA)
  • Ropes Or Cables (AREA)
  • Extrusion Of Metal (AREA)
  • Wire Processing (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
US00379658A 1972-07-17 1973-07-16 Method of simultaneously drawing a plurality of wires and apparatus therefor Expired - Lifetime US3844021A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47071446A JPS5126154B2 (enrdf_load_stackoverflow) 1972-07-17 1972-07-17

Publications (1)

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US3844021A true US3844021A (en) 1974-10-29

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US00379658A Expired - Lifetime US3844021A (en) 1972-07-17 1973-07-16 Method of simultaneously drawing a plurality of wires and apparatus therefor

Country Status (9)

Country Link
US (1) US3844021A (enrdf_load_stackoverflow)
JP (1) JPS5126154B2 (enrdf_load_stackoverflow)
AU (1) AU464158B2 (enrdf_load_stackoverflow)
BE (1) BE802428A (enrdf_load_stackoverflow)
DE (1) DE2336406A1 (enrdf_load_stackoverflow)
ES (1) ES416961A1 (enrdf_load_stackoverflow)
FR (1) FR2192882B1 (enrdf_load_stackoverflow)
GB (2) GB1442429A (enrdf_load_stackoverflow)
IT (1) IT991779B (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4777710A (en) * 1987-04-23 1988-10-18 Polymet Corporation Apparatus and method used in making wire and similar elongate members and wire made using same
WO1998021004A1 (en) * 1996-11-12 1998-05-22 Memtec America Corporation Process for making fine metallic fibers
US5890272A (en) * 1996-11-12 1999-04-06 Usf Filtration And Separations Group, Inc Process of making fine metallic fibers
CN101307518B (zh) * 2008-06-20 2013-04-17 湖南惠同新材料股份有限公司 金属纤维股线及其制备方法
CN103388174A (zh) * 2013-08-02 2013-11-13 娄底市通达金属材料有限公司 不锈钢纤维微粉的制备工艺

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53861U (enrdf_load_stackoverflow) * 1976-06-22 1978-01-07
JPS5318342U (enrdf_load_stackoverflow) * 1976-07-28 1978-02-16
JPS5432674A (en) * 1977-08-16 1979-03-10 Matsushita Electric Ind Co Ltd Cooking utensil
JPH0643613Y2 (ja) * 1988-03-16 1994-11-14 パロマ工業株式会社 焙焼器

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2050298A (en) * 1934-04-25 1936-08-11 Thos Firth & John Brown Ltd Metal reducing method
US2215477A (en) * 1937-10-19 1940-09-24 Gen Electric Method of manufacturing wire
CH358060A (de) * 1959-02-19 1961-11-15 Steiner Walter Aus thermoplastischem Kunststoff gebildetes, insbesondere zum Aufhängen von Wäsche dienendes Seil
US3277564A (en) * 1965-06-14 1966-10-11 Roehr Prod Co Inc Method of simultaneously forming a plurality of filaments
US3413707A (en) * 1967-05-10 1968-12-03 Whittaker Corp Method of preparation of fibers having high aspect ratios
US3762025A (en) * 1971-07-15 1973-10-02 Driver Co Wilbur B Method for producing metallic filaments

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2050298A (en) * 1934-04-25 1936-08-11 Thos Firth & John Brown Ltd Metal reducing method
US2215477A (en) * 1937-10-19 1940-09-24 Gen Electric Method of manufacturing wire
CH358060A (de) * 1959-02-19 1961-11-15 Steiner Walter Aus thermoplastischem Kunststoff gebildetes, insbesondere zum Aufhängen von Wäsche dienendes Seil
US3277564A (en) * 1965-06-14 1966-10-11 Roehr Prod Co Inc Method of simultaneously forming a plurality of filaments
US3413707A (en) * 1967-05-10 1968-12-03 Whittaker Corp Method of preparation of fibers having high aspect ratios
US3762025A (en) * 1971-07-15 1973-10-02 Driver Co Wilbur B Method for producing metallic filaments

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4777710A (en) * 1987-04-23 1988-10-18 Polymet Corporation Apparatus and method used in making wire and similar elongate members and wire made using same
WO1998021004A1 (en) * 1996-11-12 1998-05-22 Memtec America Corporation Process for making fine metallic fibers
US5890272A (en) * 1996-11-12 1999-04-06 Usf Filtration And Separations Group, Inc Process of making fine metallic fibers
CN101307518B (zh) * 2008-06-20 2013-04-17 湖南惠同新材料股份有限公司 金属纤维股线及其制备方法
CN103388174A (zh) * 2013-08-02 2013-11-13 娄底市通达金属材料有限公司 不锈钢纤维微粉的制备工艺

Also Published As

Publication number Publication date
FR2192882B1 (enrdf_load_stackoverflow) 1976-09-17
GB1442430A (en) 1976-07-14
DE2336406A1 (de) 1974-01-31
JPS5126154B2 (enrdf_load_stackoverflow) 1976-08-04
AU5819473A (en) 1975-01-30
GB1442429A (en) 1976-07-14
IT991779B (it) 1975-08-30
FR2192882A1 (enrdf_load_stackoverflow) 1974-02-15
BE802428A (fr) 1973-11-16
ES416961A1 (es) 1976-06-16
JPS4929264A (enrdf_load_stackoverflow) 1974-03-15
AU464158B2 (en) 1975-08-14

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