US1749700A - Apparatus for the continuous treatment of metal bodies - Google Patents

Apparatus for the continuous treatment of metal bodies Download PDF

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Publication number
US1749700A
US1749700A US156424A US15642426A US1749700A US 1749700 A US1749700 A US 1749700A US 156424 A US156424 A US 156424A US 15642426 A US15642426 A US 15642426A US 1749700 A US1749700 A US 1749700A
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tube
continuous treatment
metal bodies
wire
metal
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US156424A
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Fourment Marcel
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    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/56—Continuous furnaces for strip or wire
    • C21D9/60—Continuous furnaces for strip or wire with induction heating
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S65/00—Glass manufacturing
    • Y10S65/04—Electric heat

Definitions

  • the present application will describe a process of continuous heat treatment on? metallic pieces consisting essentially in raising the metal to the most favourable temperature for the treatment to be undergone, by means of an electric current and in particular by induced currents of high frequency.
  • the present invention has for its object an apparatus enabling the above process to be carried out and enabling in addition the heating to be effected in an active or neutral atmosphere, compressed or rarefied according to the needs of the particular case.
  • an apparatus for the treatment of metallic pieces such as wires, bars, tubes and strips for rolling, Wire drawing, hardening, tempering, etc.
  • a tube having a heating winding con nected to a source of electric current of high frequency through which tube the metal to be treated is caused to pass at a convenient speed.
  • Appropriate means are provided for regulating the intensity of current and the speed of the objects being treated.
  • the tube comprises two openings through which as may be needed, a vacuum can be produced within the tube, or the atmosphere can be compressed, or a current of gas which maybe neutral or have active properties as the case may be, passed over the metal to be treated.
  • Figure 1 is a longitudinal sectional view of an apparatus for rolling and drawing a wire or strip of steel.
  • Figure 2 is a section on the line IIII of Fi re 1.
  • the purpose is to roll and draw a so-called machine wire which corresponds to the smallest di ameter which can be obtained hot at the present time.
  • the wire 1 is stretched by the usual means along the axis of the tube 2.
  • the latter is formed by a dielectric such as fused silica, line-d on the inside with a heat insulator 3.
  • the inductor is constituted by a winding formed of a tube 4 of copper, with internal circulation of water and connected with some source of electric current at high frequency.
  • Packing glands 5 and 6 ensure gas tightness of the tube 2.
  • Pipes 12 and 13 permit the interior or" the tube 2 to be put into communication with a vacuum pump, or into a circuit of inert or active gas, under pressure or not. By this means in particular oxidization out the wire raised to a high temperature can be avoided.
  • the wire to be treated is rolled on a bobbin 7, the rolling mill 8 gives the metal the desired profile.
  • lhe wire can also be passed through a wire drawing die 10; a certain length of wire represented diagrammatically by a loop 9 can be provided between the rolling mill and the die for giving the necessary liberty for propor operation of the two devices.
  • the device is applicable particularly in facing of material conductive of electricity, said tube being surrounded by an inductor coil connected to a source of high frequency electricity.
  • Apparatus for the continuous thermal treatment of metallic bodies coinprisin an air-tight tube of heat insulating materia the interior of this tube being provided with a facing of material conductive of electricity,
  • said tube being surrounded by an inductor coil connected to a source of high frequency electricity, said coil being itsel tubular and having means for leading, a current of cooling fluid through said tu ular coil.

Description

March 4, 19% M. FOURMENT W F APPARATUS FOR THE CONTINUOUS TREATMENT OF METAL BODIES Filed Dec 22, 1926 & A. #21, a y
Patented Mar. 4, 1930 MARGEL FQURMENT, 0F PARIS, FRANGE APPARATUS FOR THE CONTINUOUS TREATMENT 0F METAL BODIES Application filed December 22, 1926, Serial No. 156,424, and in France December 29, 11925.
The present application will describe a process of continuous heat treatment on? metallic pieces consisting essentially in raising the metal to the most favourable temperature for the treatment to be undergone, by means of an electric current and in particular by induced currents of high frequency.
The present invention has for its object an apparatus enabling the above process to be carried out and enabling in addition the heating to be effected in an active or neutral atmosphere, compressed or rarefied according to the needs of the particular case.
In particular an apparatus for the treatment of metallic pieces such as wires, bars, tubes and strips for rolling, Wire drawing, hardening, tempering, etc. comprises immediately in front of a mechanical treating device, a tube having a heating winding con nected to a source of electric current of high frequency, through which tube the metal to be treated is caused to pass at a convenient speed. Appropriate means are provided for regulating the intensity of current and the speed of the objects being treated.
Preferably the tube comprises two openings through which as may be needed, a vacuum can be produced within the tube, or the atmosphere can be compressed, or a current of gas which maybe neutral or have active properties as the case may be, passed over the metal to be treated.
By way of example, several embodiments of such apparatus have been illustrated in the accompanying drawing.
Figure 1 is a longitudinal sectional view of an apparatus for rolling and drawing a wire or strip of steel.
Figure 2 is a section on the line IIII of Fi re 1.
n the example shown in Figure 1 the purpose is to roll and draw a so-called machine wire which corresponds to the smallest di ameter which can be obtained hot at the present time. The wire 1 is stretched by the usual means along the axis of the tube 2. The latter is formed by a dielectric such as fused silica, line-d on the inside with a heat insulator 3. The inductor is constituted by a winding formed of a tube 4 of copper, with internal circulation of water and connected with some source of electric current at high frequency. Packing glands 5 and 6 ensure gas tightness of the tube 2. Pipes 12 and 13 permit the interior or" the tube 2 to be put into communication with a vacuum pump, or into a circuit of inert or active gas, under pressure or not. By this means in particular oxidization out the wire raised to a high temperature can be avoided.
The wire to be treated is rolled on a bobbin 7, the rolling mill 8 gives the metal the desired profile.
lhe wire can also be passed through a wire drawing die 10; a certain length of wire represented diagrammatically by a loop 9 can be provided between the rolling mill and the die for giving the necessary liberty for propor operation of the two devices.
In the example shown in Figure 2 there is provided in addition to the tube 2 of dielectric material and the heat insulating tube 3, a third tube 14 of graphite which is therefore raised to a high temperature and the wire 1 therefore heated by radiation from this tube 14.
The device is applicable particularly in facing of material conductive of electricity, said tube being surrounded by an inductor coil connected to a source of high frequency electricity.
2. Apparatus for the continuous thermal treatment of metallic bodies coinprisin an air-tight tube of heat insulating materia the interior of this tube being provided with a facing of material conductive of electricity,
10 said tube being surrounded by an inductor coil connected to a source of high frequency electricity, said coil being itsel tubular and having means for leading, a current of cooling fluid through said tu ular coil.
15 MARCEL FOURMENT.
US156424A 1925-12-29 1926-12-22 Apparatus for the continuous treatment of metal bodies Expired - Lifetime US1749700A (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2439517A (en) * 1945-11-10 1948-04-13 Western Electric Co Induction heating apparatus
US2469597A (en) * 1946-02-01 1949-05-10 Guigas Gustav Method of and apparatus for heating, sizing, or forming quartz tubes and profiles
US2548735A (en) * 1948-10-01 1951-04-10 Vacuum Cleaner Corp Of America Art of springmaking
US2552514A (en) * 1949-02-03 1951-05-15 Claude A Bowlus Machine for inductively welding seamed tubing
US2556234A (en) * 1941-03-21 1951-06-12 Ohio Crankshaft Co Work expulsion mechanism for furnaces
US2602872A (en) * 1948-12-30 1952-07-08 Bell Telephone Labor Inc Apparatus for equipping crystals with wires
US2777929A (en) * 1952-07-21 1957-01-15 Joseph B Brennan Method and apparatus for welding metal elements
US2837126A (en) * 1953-11-20 1958-06-03 Sylvania Electric Prod Device for eliminating oxidation during hot stretching operation on grids
US3641249A (en) * 1970-01-14 1972-02-08 Courtaulds Ltd Tube furnace
EP0822733A1 (en) * 1996-08-02 1998-02-04 Selas SA Induction heating apparatus and installation for continuous thermal treatment using such apparatus
WO2000052965A2 (en) * 1999-03-01 2000-09-08 Avestapolarit Aktiebolag (Publ) A method of heating metal strip and apparatus therefor

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2556234A (en) * 1941-03-21 1951-06-12 Ohio Crankshaft Co Work expulsion mechanism for furnaces
US2439517A (en) * 1945-11-10 1948-04-13 Western Electric Co Induction heating apparatus
US2469597A (en) * 1946-02-01 1949-05-10 Guigas Gustav Method of and apparatus for heating, sizing, or forming quartz tubes and profiles
US2548735A (en) * 1948-10-01 1951-04-10 Vacuum Cleaner Corp Of America Art of springmaking
US2602872A (en) * 1948-12-30 1952-07-08 Bell Telephone Labor Inc Apparatus for equipping crystals with wires
US2552514A (en) * 1949-02-03 1951-05-15 Claude A Bowlus Machine for inductively welding seamed tubing
US2777929A (en) * 1952-07-21 1957-01-15 Joseph B Brennan Method and apparatus for welding metal elements
US2837126A (en) * 1953-11-20 1958-06-03 Sylvania Electric Prod Device for eliminating oxidation during hot stretching operation on grids
US3641249A (en) * 1970-01-14 1972-02-08 Courtaulds Ltd Tube furnace
EP0822733A1 (en) * 1996-08-02 1998-02-04 Selas SA Induction heating apparatus and installation for continuous thermal treatment using such apparatus
FR2752134A1 (en) * 1996-08-02 1998-02-06 Selas Sa INDUCTION HEATING DEVICE AND CONTINUOUS HEAT TREATMENT INSTALLATION COMPRISING SUCH A DEVICE
WO2000052965A2 (en) * 1999-03-01 2000-09-08 Avestapolarit Aktiebolag (Publ) A method of heating metal strip and apparatus therefor
WO2000052965A3 (en) * 1999-03-01 2000-12-28 Avesta Sheffield Aktiebolag Pu A method of heating metal strip and apparatus therefor
US6608290B1 (en) 1999-03-01 2003-08-19 Avesta Sheffield Aktiebolag Method of heating metal strip and apparatus thereof

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