FR2453905A1 - Electroslag remelting of consumable electrodes - where rectifiers prevent positive voltage on mould, so mould wear by electro:erosion is eliminated - Google Patents

Electroslag remelting of consumable electrodes - where rectifiers prevent positive voltage on mould, so mould wear by electro:erosion is eliminated

Info

Publication number
FR2453905A1
FR2453905A1 FR7909324A FR7909324A FR2453905A1 FR 2453905 A1 FR2453905 A1 FR 2453905A1 FR 7909324 A FR7909324 A FR 7909324A FR 7909324 A FR7909324 A FR 7909324A FR 2453905 A1 FR2453905 A1 FR 2453905A1
Authority
FR
France
Prior art keywords
mould
rectifiers
positive voltage
erosion
electro
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.)
Granted
Application number
FR7909324A
Other languages
French (fr)
Other versions
FR2453905B1 (en
Inventor
B I Medovar
V L Artamonov
P I Kirsanov
A M Marchenko
A G Bogachenko
L V Pavlov
J M Kamenski
R B Gutnov
P M Platonov
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.)
Institut Elektrosvarki Imeni E O Patona Akademii Nauk Ukrainskoi Ssr
Original Assignee
Institut Elektrosvarki Imeni E O Patona Akademii Nauk Ukrainskoi Ssr
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 Institut Elektrosvarki Imeni E O Patona Akademii Nauk Ukrainskoi Ssr filed Critical Institut Elektrosvarki Imeni E O Patona Akademii Nauk Ukrainskoi Ssr
Priority to FR7909324A priority Critical patent/FR2453905A1/en
Publication of FR2453905A1 publication Critical patent/FR2453905A1/en
Application granted granted Critical
Publication of FR2453905B1 publication Critical patent/FR2453905B1/fr
Granted 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)
  • Rectifiers (AREA)

Abstract

The plant includes a transformer with a sec. winding connected to >=2 consumable electrodes the bottom ends of the latter being immersed in a melt in a mould which rests on a base. Both the mould and its base are connected via rectifiers to the sec. winding of the transformer so that only d.c. flows from the mould and its base through the rectifiers to the sec. When 3 electrode holders are used with a 3-phase supply connected in delta, the mould and its base are pref. connected via min. three rectifiers to the power supply. The overall result is that a positive voltage cannot be created on the mould walls, so the life of the mould is increased and it does not contaminate the melt.
FR7909324A 1979-04-12 1979-04-12 Electroslag remelting of consumable electrodes - where rectifiers prevent positive voltage on mould, so mould wear by electro:erosion is eliminated Granted FR2453905A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7909324A FR2453905A1 (en) 1979-04-12 1979-04-12 Electroslag remelting of consumable electrodes - where rectifiers prevent positive voltage on mould, so mould wear by electro:erosion is eliminated

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7909324A FR2453905A1 (en) 1979-04-12 1979-04-12 Electroslag remelting of consumable electrodes - where rectifiers prevent positive voltage on mould, so mould wear by electro:erosion is eliminated

Publications (2)

Publication Number Publication Date
FR2453905A1 true FR2453905A1 (en) 1980-11-07
FR2453905B1 FR2453905B1 (en) 1983-10-14

Family

ID=9224272

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7909324A Granted FR2453905A1 (en) 1979-04-12 1979-04-12 Electroslag remelting of consumable electrodes - where rectifiers prevent positive voltage on mould, so mould wear by electro:erosion is eliminated

Country Status (1)

Country Link
FR (1) FR2453905A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB965426A (en) * 1959-11-19 1964-07-29 Renault Improvements in or relating to the continuous-casting of metals
FR1602108A (en) * 1967-08-07 1970-10-12
FR2117088A5 (en) * 1970-11-10 1972-07-21 Siemens Ag Electro-slag smelter - using double power feed system for alternating direction of smelting current
FR2272775A1 (en) * 1974-05-28 1975-12-26 Boehler & Co Ag Geb

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB965426A (en) * 1959-11-19 1964-07-29 Renault Improvements in or relating to the continuous-casting of metals
FR1602108A (en) * 1967-08-07 1970-10-12
FR2117088A5 (en) * 1970-11-10 1972-07-21 Siemens Ag Electro-slag smelter - using double power feed system for alternating direction of smelting current
FR2272775A1 (en) * 1974-05-28 1975-12-26 Boehler & Co Ag Geb

Also Published As

Publication number Publication date
FR2453905B1 (en) 1983-10-14

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Legal Events

Date Code Title Description
ST Notification of lapse