FR2117088A5 - Electro-slag smelter - using double power feed system for alternating direction of smelting current - Google Patents

Electro-slag smelter - using double power feed system for alternating direction of smelting current

Info

Publication number
FR2117088A5
FR2117088A5 FR7140173A FR7140173A FR2117088A5 FR 2117088 A5 FR2117088 A5 FR 2117088A5 FR 7140173 A FR7140173 A FR 7140173A FR 7140173 A FR7140173 A FR 7140173A FR 2117088 A5 FR2117088 A5 FR 2117088A5
Authority
FR
France
Prior art keywords
electro
feed system
power feed
double power
alternating direction
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
Application number
FR7140173A
Other languages
French (fr)
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.)
Siemens AG
Original Assignee
Siemens AG
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 DE19702055143 external-priority patent/DE2055143C/en
Application filed by Siemens AG filed Critical Siemens AG
Application granted granted Critical
Publication of FR2117088A5 publication Critical patent/FR2117088A5/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/16—Remelting metals
    • C22B9/18—Electroslag remelting

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Furnace Details (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)

Abstract

The smelting current between the consumable electrode and the furnace shell is supplied by a d.c. source based of rectifiers and by a supplementary reservoir of electrical energy e.g. a storage capacitor, the two being connected alternately with reversed polarity. The capacitor may be placed in the primary circuit of a transformer whose secondary is connected to the furnace, thyristors being used for switching and the capacitor being charged externally. The low loss characteristics of d.c. smelting are combined with freedom from polarization.
FR7140173A 1970-11-10 1971-11-09 Electro-slag smelter - using double power feed system for alternating direction of smelting current Expired FR2117088A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702055143 DE2055143C (en) 1970-11-10 Electric slag remelting furnace

Publications (1)

Publication Number Publication Date
FR2117088A5 true FR2117088A5 (en) 1972-07-21

Family

ID=5787629

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7140173A Expired FR2117088A5 (en) 1970-11-10 1971-11-09 Electro-slag smelter - using double power feed system for alternating direction of smelting current

Country Status (5)

Country Link
JP (1) JPS5040362B1 (en)
AT (1) AT310966B (en)
CH (1) CH554943A (en)
FR (1) FR2117088A5 (en)
IT (1) IT941726B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2453905A1 (en) * 1979-04-12 1980-11-07 Inst Elektroswarki Patona Electroslag remelting of consumable electrodes - where rectifiers prevent positive voltage on mould, so mould wear by electro:erosion is eliminated

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2453905A1 (en) * 1979-04-12 1980-11-07 Inst Elektroswarki Patona Electroslag remelting of consumable electrodes - where rectifiers prevent positive voltage on mould, so mould wear by electro:erosion is eliminated

Also Published As

Publication number Publication date
DE2055143A1 (en) 1972-03-09
CH554943A (en) 1974-10-15
IT941726B (en) 1973-03-10
DE2055143B2 (en) 1972-03-09
AT310966B (en) 1973-10-25
JPS5040362B1 (en) 1975-12-24

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Legal Events

Date Code Title Description
ST Notification of lapse