US3510938A - Method of making induction heater ring - Google Patents

Method of making induction heater ring Download PDF

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Publication number
US3510938A
US3510938A US733924A US3510938DA US3510938A US 3510938 A US3510938 A US 3510938A US 733924 A US733924 A US 733924A US 3510938D A US3510938D A US 3510938DA US 3510938 A US3510938 A US 3510938A
Authority
US
United States
Prior art keywords
ring
strip
induction heater
heater ring
making induction
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.)
Expired - Lifetime
Application number
US733924A
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English (en)
Inventor
George L Mcfarland
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.)
FYCON INDUSTRIES A CORP OF FLA
General Electric Co
Original Assignee
General Electric Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by General Electric Co filed Critical General Electric Co
Application granted granted Critical
Publication of US3510938A publication Critical patent/US3510938A/en
Assigned to FYCON INDUSTRIES, A CORP. OF FLA. reassignment FYCON INDUSTRIES, A CORP. OF FLA. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: ROSE INTERNATIONAL ,INC.,231 SOUTH LAKE HOWELL ROAD, CASSELBERRY, FLA. 32707
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K13/00—Welding by high-frequency current heating
    • B23K13/04—Welding by high-frequency current heating by conduction 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
    • 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
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor

Definitions

  • a roll type, induction heater essentially comprising a hollow cylinder having concentric rings in mutual contact with the inside of the cylinder at preselected locations along the length of the cylinder for supplementing by induced eddy currents the heating of the cylinder to provide predetermined heating profiles according to the positions of the internal rings.
  • the rings referred to in the aforesaid earlier application are made from solid, hollow cylindrical stock, requiring considerable machining time and expense. It has been found that rings formed from strips having their ends joined as taught in the present invention are equally effective and cheaper to manufacture.
  • This invention relates to a ring formed from a linear strip of conductive metal of uniform cross section, the length of the strip being substantially equal to the desired circumference of the ring.
  • the strip is first formed partially into circular shape with the ends of the strip separated and abutting, the ends thereafter being plated, or otherwise covered with a layer of precious metal, so that when they are forced together to complete formation of the ring reliable electrical continuity is obtained throughout the circumference of the ring.
  • FIG. 1 is a perspective view of a strip of conductive metal from which a circular ring is to be formed according to the invention.
  • FIG. 2 is a perspective view of a partially formed ring derived from the strip shown in FIG. 1.
  • FIG. 3 is a perspective view of the completed ring that is shown partially formed in FIG. 2.
  • the gap between the ends 11 and 12 may be approximately one inch.
  • the ends of the strip are thereafter plated with a precious metal such as silver. If the ring is not immediately installed into an induction heater roll, as described in the earlier application referred to above, the ends are thereafter dipped in wax to preserve the precious metal from deterioration.
  • the circular shaped, open ended ring 13 of FIG. 2 is contracted by applying force across its perimeter to complete a closed ring 13a as shown in FIG. 3, the ends 11 and 12 meeting at a common position 14.
  • the ring 13a is thereafter forced into a hollow cylindrical heater roll 16 having an inside diameter '17 slightly less than the perimeter of the ring 13a.
  • a notch 15 is cut into the strip 10 prior to its being formed, this notch being useful in removing a ring 13a from a heater roll 16 when the ring is to be changed or replaced.
  • rings constructed according to the above after being used in heater rolls to provide auxiliary induction heating of the roll are affected in a manner whereby the pressure of the ends in contact at the time of fitting into the heater roll, together with the heating incidental to use as a short-circuited secondary winding of the induction heater and the eddy currents induced therein, produce a bonding of the silver plated ends similar to, but stronger than, a cold weld.
  • the method of forming a conductive ring comprising cutting a strip of conductive metal substantially equal in length to the circumference of the desired ring, forming the said strip into a partial ring with the ends adjacent one another, placing a layer of precious metal upon each said end, and applying force across the perimeter of said ring to close the ends into intimate contact with each other.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Induction Heating (AREA)
  • Fixing For Electrophotography (AREA)
US733924A 1968-06-03 1968-06-03 Method of making induction heater ring Expired - Lifetime US3510938A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US73392468A 1968-06-03 1968-06-03

Publications (1)

Publication Number Publication Date
US3510938A true US3510938A (en) 1970-05-12

Family

ID=24949658

Family Applications (1)

Application Number Title Priority Date Filing Date
US733924A Expired - Lifetime US3510938A (en) 1968-06-03 1968-06-03 Method of making induction heater ring

Country Status (5)

Country Link
US (1) US3510938A (enrdf_load_stackoverflow)
JP (1) JPS5028662B1 (enrdf_load_stackoverflow)
DE (1) DE1927486C3 (enrdf_load_stackoverflow)
FR (1) FR2010036A1 (enrdf_load_stackoverflow)
GB (1) GB1241257A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987003549A1 (en) * 1985-12-11 1987-06-18 Rodney Darcy Wall Vehicle repair benches

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2308486C2 (de) * 1973-02-21 1983-12-22 Dr. Reiser KG Maschinenfabrik, 6120 Erbach Wickeldorn
GB8319660D0 (en) * 1983-07-21 1983-08-24 Force Eng Ltd Travelling wave induction heater
DE3446731A1 (de) * 1984-12-21 1986-08-28 geb. Klee Gerhard Jürgen Raaphorst Festspannvorrichtung
DE9208165U1 (de) * 1992-06-19 1993-10-14 Sander GmbH & Co, 42285 Wuppertal Vorrichtung zum Verschweißen von thermoplastischen Bändern, insbesondere in Umschnürungsmaschinen
DE4233419A1 (de) * 1992-10-05 1994-04-07 Abb Patent Gmbh Vorrichtung zur Herstellung einer Wicklung

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US92258A (en) * 1869-07-06 Samuel d
US403707A (en) * 1889-05-21 Process of electric soldering
US653901A (en) * 1899-10-14 1900-07-17 Nat Tube Co Bar for forming welded rings.
US1486479A (en) * 1923-05-05 1924-03-11 Bottiger Wilhelm Method for the manufacturing of radiator nipples
US1640469A (en) * 1927-08-30 Leadinq-in conductor
US1892607A (en) * 1930-10-27 1932-12-27 Bundy Tubing Co Method for making a tube
US2027060A (en) * 1934-02-03 1936-01-07 L G Balfour Company Finger ring
US2118137A (en) * 1934-07-18 1938-05-24 Electric Heat Control Company Testing apparatus
US2311138A (en) * 1939-03-15 1943-02-16 Cleveland Graphite Bronze Co Conductor
US2503564A (en) * 1944-09-02 1950-04-11 Bell Telephone Labor Inc Soldering composition
US2739829A (en) * 1950-08-05 1956-03-27 American Viscose Corp Plastic pipe joint

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL104925C (enrdf_load_stackoverflow) * 1961-04-07

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US92258A (en) * 1869-07-06 Samuel d
US403707A (en) * 1889-05-21 Process of electric soldering
US1640469A (en) * 1927-08-30 Leadinq-in conductor
US653901A (en) * 1899-10-14 1900-07-17 Nat Tube Co Bar for forming welded rings.
US1486479A (en) * 1923-05-05 1924-03-11 Bottiger Wilhelm Method for the manufacturing of radiator nipples
US1892607A (en) * 1930-10-27 1932-12-27 Bundy Tubing Co Method for making a tube
US2027060A (en) * 1934-02-03 1936-01-07 L G Balfour Company Finger ring
US2118137A (en) * 1934-07-18 1938-05-24 Electric Heat Control Company Testing apparatus
US2311138A (en) * 1939-03-15 1943-02-16 Cleveland Graphite Bronze Co Conductor
US2503564A (en) * 1944-09-02 1950-04-11 Bell Telephone Labor Inc Soldering composition
US2739829A (en) * 1950-08-05 1956-03-27 American Viscose Corp Plastic pipe joint

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987003549A1 (en) * 1985-12-11 1987-06-18 Rodney Darcy Wall Vehicle repair benches

Also Published As

Publication number Publication date
FR2010036A1 (enrdf_load_stackoverflow) 1970-02-13
GB1241257A (en) 1971-08-04
DE1927486C3 (de) 1979-10-11
JPS5028662B1 (enrdf_load_stackoverflow) 1975-09-17
DE1927486A1 (de) 1970-01-29
DE1927486B2 (de) 1979-02-22

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