US3651301A - Installation for casting microwire in glass insulation - Google Patents

Installation for casting microwire in glass insulation Download PDF

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Publication number
US3651301A
US3651301A US822408A US3651301DA US3651301A US 3651301 A US3651301 A US 3651301A US 822408 A US822408 A US 822408A US 3651301D A US3651301D A US 3651301DA US 3651301 A US3651301 A US 3651301A
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US
United States
Prior art keywords
frequency
oscillating
circuit
circuits
tank
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
US822408A
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English (en)
Inventor
Vyacheslav Evgenievich Markov
Alexandr Alexandrovich Sopin
Leonid Petrovich Menchikov
Kim Ivanovich Kopylov
Evsei Lvovich Okun
Vasily Mikhailovich Smirnov
Viktor Stepanovich Gavrikov
Ilya Davidovich Fridman
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.)
NCR Voyix Corp
National Cash Register Co
Original Assignee
NCR Corp
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
Priority claimed from SU1238410A external-priority patent/SU289787A1/ru
Application filed by NCR Corp filed Critical NCR Corp
Application granted granted Critical
Publication of US3651301A publication Critical patent/US3651301A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
    • H05B6/101—Induction heating apparatus, other than furnaces, for specific applications for local heating of metal pieces
    • H05B6/103—Induction heating apparatus, other than furnaces, for specific applications for local heating of metal pieces multiple metal pieces successively being moved close to the inductor
    • H05B6/104—Induction heating apparatus, other than furnaces, for specific applications for local heating of metal pieces multiple metal pieces successively being moved close to the inductor metal pieces being elongated like wires or bands
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/06—Control, e.g. of temperature, of power
    • H05B6/08—Control, e.g. of temperature, of power using compensating or balancing arrangements

Definitions

  • ABSTRACT An installation for casting microwire in glass insulation with the aid of 'a high-frequency inductor whose oscillating system comprises at least two oscillating tank circuits with voltage stabilization; each oscillating tank circuit contains an element for regulating the equivalent or resonance impedance of the circuit and an element for stabilization of the resonant frequency or frequency of generation of the tank circuit synchronously coupled to it.
  • the element for-regulating the equivalent or resonance impedance of the circuit is designed in the form of a variable inductance coil, while the element for stabilization of the resonant frequency or frequency of generation of the tank circuit is designed either in the form of a variable capacitor or a variable inductance coil, the movable parts of the two elements being mechanically connected to one another.
  • SHEET 3 BF 3 The present invention relates to the field of micrometallurgy, and more particularly to the installations for casting microwire in glass insulation directly from the liquid phase of metals, alloys or semiconductor materials.
  • An object of the present invention is to eliminate the above disadvantages.
  • the main object of the present invention is to provide such an installation for casting microwire in glass insulation which will make possible the independent operation of at least two oscillating tank circuits and the separate regulation of their power conditions.
  • each oscillating tank circuit contains an element for regulation of the equivalent or resonance impedance of the tank circuit and an element synchronously coupled to it for stabilization of the resonant frequency or frequency of generation of the circuit.
  • the element for stabilization of the resonant frequency of the circuit and the element synchronously connected to it for changing the equivalent or resonance impedance of the tank circuit be in the form of variable inductance coils with movable contacts, coupled in series with the elements of the said oscillating tank circuit, and mechanically couple their movable contacts with one another.
  • the proposed installation is universal, highly effective from a technical and economical standpoint and advantageously differs from known installations with oscillating systems consisting both of one and of two oscillating tank circuits.
  • the installation makes it possible to cast either several microwires (in accordance with the number of oscillating circuits) or one wire (if the remaining circuits are disconnected or faulty). This considerably improves the reliability of operation of the installation, since it makes it possible to keep oscillating tank circuits of the system in reserve.
  • the independency of the power conditions of the oscillating tank circuits makes it possible to simultaneously cast at least two microwires with identical and stable parameters.
  • the installation ensures smooth independent regulation of the power conditions of the tank circuits within a range from 50 to 100 percent of the rated power, which makes it possible to simultaneously produce microwire from different materials with different geometrical, electrical andphysical parameters.
  • the installation is not sensitive to changes in the voltage of the supply mains within the limits of :15 percent and ensures stabilization of the voltage feeding the inductors with an accuracy of :1 percent.
  • the installation provides for smooth manual regulation of the power of the oscillating system within the limits from 0 to percent of the rated power, which makes it possible to set the value of the power depending on the melting point of the material forming a strand of the microwire.
  • the economical effect of the installation consists in the sharp increase in the yield of high-quality microwire, the economy in electric power and the possibility of simultaneously producing a wide range of microwire on one installation.
  • FIG. 1 represents a functional diagram of the installation according to the present invention
  • FIG. 2 is a schematic electrical diagram of one oscillating circuit of the system with a movable tank circuit coil used as the element for regulating the equivalent or resonance impedance, and with the element ensuring the constancy of the resonant frequency or frequency of generation in the form of a variable capacitor;
  • FIG. 3 shows the design of an oscillating tank circuit conforming to the schematic diagram of FIG. 2;
  • FIG. 4 is a schematic electrical diagram of one oscillating tank circuit of a system wherein the capacity of the two elements is filled by two variable inductance coils connected in series with each other and the elements of the tank circuit;
  • FIG. 5 shows the design of an oscillating circuit conforming to the schematic diagram of FIG. 4.
  • the installation for the casting of microwire in glass insulation comprises nonlinear element 1 (FIG. 1) with feedback circuits electrically connected by oscillating system 2.
  • System 2 has two independent oscillating tank circuits 3 and 4; device 5 for stabilizing the high voltage U across the oscillating system 2 and acting on controlled high-voltage rectifier 6.
  • Tank circuits 3 and 4 are connected parallel to each other and are connected to nonlinear element 1 by means of coaxial cable 7.
  • the resonant frequency of each of the tank circuits 3 and 4 and of the entire oscillating system is identical, and for this reason when-the number of simultaneously connected tank circuits is changed, the resonant frequency of the oscillating system and, consequently, the generated frequency, do not change.
  • Each of the oscillating tank circuits includes elements 8 for regulating the equivalent or resonance impedance of the tank circuit and, consequently, the power conditions of the tank circuits, and element 9 'for stabilization of the resonant frequency, or frequency of generation which maintains constancy of the resonant frequency or frequency of generation of the circuits and of the entire oscillating system 2. Elements 8 and 9 are synchronously coupled to each other.
  • the high-frequency oscillations generated in system 2 are transmitted to output circuits consisting of single-turn coils l0 inductively coupled to coils 11 and connected in series to melting inductors 12.
  • output circuits consisting of single-turn coils l0 inductively coupled to coils 11 and connected in series to melting inductors 12.
  • the equivalent or resonance impedance of an oscillating tank circuit is regulated by means of element 8, and since here the resonant frequency of the tank circuit changes (and, consequently, the generated frequency), synchronously with element 8 there is coupled element 9 which maintains a constant resonant frequency or frequency of generation of the tank circuits when the equivalent or resonance impedance changes.
  • FIG. 2 shows a schematic diagram
  • FIG. 3 the design of one embodiment of an oscillating tank circuit (circuits 3 and 4 are identical), in which the capacity of element 8 regulating the equivalent or resonance impedance of the circuit is filled by coil 13 which is movable with respect to single-turn output coil 10.
  • coil 13 moves out of coil 10 the magnetic connection between them is reduced and, consequently, the power transmitted to coil 10, and, due to the change in the active impedance introduced by the output circuit into the oscillating tank circuit, the equivalent or resonance impedance of the circuit decreases.
  • movable coil 13 is rigidly connected to movable plates of capacitor 14 by means of a variable inductance connected in parallel to the oscillating tank circuit.
  • Capacitor 14 is the element for maintaining a constant resonant frequency or frequency of generation of the circuit (element 9 in FIG. 1).
  • FIG. 4 shows a schematic diagram
  • FIG. 5 the design of a second embodiment of an oscillating tank circuit (circuits 3 and 4 are identical).
  • the capacity of both regulating elements is filled by two additional variable inductance coils l5 and 16 connected to each other and to coil 11 in series.
  • apparatus for casting microwire in glass insulation comprising a high-frequency inductor; a power source; an oscillating system comprising at least two separate and independent oscillating tank circuits with high-frequency voltage stabilization; an element for regulating the equivalent impedance of said tank circuits; an element for stabilizing the resonant frequency of said tank circuits synchronously coupled to the said element for regulating the equivalent impedance of the tank circuits, said power source connected to said oscillating system.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • General Induction Heating (AREA)
  • Processes Specially Adapted For Manufacturing Cables (AREA)
US822408A 1968-05-12 1969-05-07 Installation for casting microwire in glass insulation Expired - Lifetime US3651301A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1238410A SU289787A1 (ru) 1968-05-12 Установка для литья

Publications (1)

Publication Number Publication Date
US3651301A true US3651301A (en) 1972-03-21

Family

ID=20442413

Family Applications (1)

Application Number Title Priority Date Filing Date
US822408A Expired - Lifetime US3651301A (en) 1968-05-12 1969-05-07 Installation for casting microwire in glass insulation

Country Status (5)

Country Link
US (1) US3651301A (ja)
JP (1) JPS5034233B1 (ja)
AT (1) AT302441B (ja)
FR (1) FR2008338A1 (ja)
GB (1) GB1237832A (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5240066A (en) * 1991-09-26 1993-08-31 Technalum Research, Inc. Method of casting amorphous and microcrystalline microwires
CN111835285A (zh) * 2019-04-13 2020-10-27 广州顺瑞电子有限公司 一种舒曼波定频仪器

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2146186A (en) * 1983-08-25 1985-04-11 Electroheating Int Apparatus for electrically heating a metallic workpiece

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1559116A (en) * 1924-10-16 1925-10-27 Western Electric Co Wave generating and modulating system
US2551756A (en) * 1944-07-21 1951-05-08 Mittelmann Eugene High-frequency heating method and apparatus
US2623176A (en) * 1948-09-02 1952-12-23 Hartford Nat Bank & Trust Co High-frequency heating apparatus
US2662162A (en) * 1951-01-12 1953-12-08 Hartford Nat Bank & Trust Co High-frequency furnace
US2856499A (en) * 1957-02-28 1958-10-14 Magnetic Heating Corp Reactors for high frequency current
GB897783A (en) * 1958-12-23 1962-05-30 Gen Electric Co Ltd Improvements in or relating to induction heating apparatus
GB930376A (en) * 1958-12-22 1963-07-03 Philips Electrical Ind Ltd Improvements in high-frequency furnaces

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1559116A (en) * 1924-10-16 1925-10-27 Western Electric Co Wave generating and modulating system
US2551756A (en) * 1944-07-21 1951-05-08 Mittelmann Eugene High-frequency heating method and apparatus
US2623176A (en) * 1948-09-02 1952-12-23 Hartford Nat Bank & Trust Co High-frequency heating apparatus
US2662162A (en) * 1951-01-12 1953-12-08 Hartford Nat Bank & Trust Co High-frequency furnace
US2856499A (en) * 1957-02-28 1958-10-14 Magnetic Heating Corp Reactors for high frequency current
GB930376A (en) * 1958-12-22 1963-07-03 Philips Electrical Ind Ltd Improvements in high-frequency furnaces
GB897783A (en) * 1958-12-23 1962-05-30 Gen Electric Co Ltd Improvements in or relating to induction heating apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5240066A (en) * 1991-09-26 1993-08-31 Technalum Research, Inc. Method of casting amorphous and microcrystalline microwires
CN111835285A (zh) * 2019-04-13 2020-10-27 广州顺瑞电子有限公司 一种舒曼波定频仪器

Also Published As

Publication number Publication date
FR2008338A1 (ja) 1970-01-16
JPS5034233B1 (ja) 1975-11-06
AT302441B (de) 1972-10-10
GB1237832A (en) 1971-06-30

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