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Plasma Arc Cold Hearth Refining Furnace

Romanian translation: cuptor(furnal) de rafinare cu vatra ( alimentat) cu plasma cu arc

GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)
English term or phrase:Plasma Arc Cold Hearth Refining Furnace
Romanian translation:cuptor(furnal) de rafinare cu vatra ( alimentat) cu plasma cu arc
Entered by: Ioana Constantinescu

15:08 Nov 15, 2018
English to Romanian translations [PRO]
Tech/Engineering - Metallurgy / Casting
English term or phrase: Plasma Arc Cold Hearth Refining Furnace
Asta este denumirea instalatiei, asa ca prea mult context nu as avea.

Cuptor cu vatră de rafinare cu plasma cu arc?

Totusi, cold hearth nu-l gasesc nicaieri. Open hearth este cuptor Martin, dar Cold hearth nu inteleg ce e si nu il gasesc nicăieri, macar explicatie, daca nu termenul in sine.
Si o idee ar ajuta.

Multumesc!
Ioana Constantinescu
Romania
Local time: 14:45
cuptor(furnal) de rafinare cu vatra ( alimentat) cu plasma cu arc
Explanation:
TELEDYNE ALLVAC'S PLASMA COLD HEARTH FURNACE
One of the first design decisions made was to use plasma rather than
electron beam as the heat source. A fair comparison of the two methods is
complex and not within the scope of this report. The major factor
influencing the choice of plasma, however, was the high vacuum conditions
required for electron beam melting. The significant evaporation of alloying
elements that occurs under these conditions makes ingot chemistry control
very difficult and also results in a significant yield loss. Both of these
concerns are eliminated with plasma.
Teledyne Allvac's plasma furnace, supplied by Retech Inc, uses four 750
kilowatt transferred arc plasma torches. One torch heats each of three
hearth pools and the fourth heats the ingot top (Fig. 1). Metal flow from
the melting area is carried through two right angles and three shallow lips
before reaching the ingot. A steel wall provides a barrier between the
initial melting pool and the ingot mold. This turning of the flow through a
180 degree angle with an intervening barrier wall is an important feature
as it prevents unmelted material from moving directly into the ingot and
short circuiting the defect removal process. Plasma torch movement is
controlled through easily programmed patterns. The same microcomputer that controls torch movement also provides ingot withdrawal control.
Selected response from:

Irina Lazarescu
Romania
Local time: 14:45
Grading comment
Multumesc mult pentru disponibilitate! A fost de mare ajutor
4 KudoZ points were awarded for this answer



Summary of answers provided
4cuptor(furnal) de rafinare cu vatra ( alimentat) cu plasma cu arc
Irina Lazarescu


  

Answers


6 hrs   confidence: Answerer confidence 4/5Answerer confidence 4/5
plasma arc cold hearth refining furnace
cuptor(furnal) de rafinare cu vatra ( alimentat) cu plasma cu arc


Explanation:
TELEDYNE ALLVAC'S PLASMA COLD HEARTH FURNACE
One of the first design decisions made was to use plasma rather than
electron beam as the heat source. A fair comparison of the two methods is
complex and not within the scope of this report. The major factor
influencing the choice of plasma, however, was the high vacuum conditions
required for electron beam melting. The significant evaporation of alloying
elements that occurs under these conditions makes ingot chemistry control
very difficult and also results in a significant yield loss. Both of these
concerns are eliminated with plasma.
Teledyne Allvac's plasma furnace, supplied by Retech Inc, uses four 750
kilowatt transferred arc plasma torches. One torch heats each of three
hearth pools and the fourth heats the ingot top (Fig. 1). Metal flow from
the melting area is carried through two right angles and three shallow lips
before reaching the ingot. A steel wall provides a barrier between the
initial melting pool and the ingot mold. This turning of the flow through a
180 degree angle with an intervening barrier wall is an important feature
as it prevents unmelted material from moving directly into the ingot and
short circuiting the defect removal process. Plasma torch movement is
controlled through easily programmed patterns. The same microcomputer that controls torch movement also provides ingot withdrawal control.


    Reference: http://www.ginattatecnologie.it/Docs/Meeting6/VI%20Meeting%2...
    https://www.tms.org/superalloys/10.7449/1992/Superalloys_1992_185_194.pdf
Irina Lazarescu
Romania
Local time: 14:45
Native speaker of: Native in RomanianRomanian
PRO pts in category: 24
Grading comment
Multumesc mult pentru disponibilitate! A fost de mare ajutor
Notes to answerer
Asker: Eram pe aproape, insa bine ca m-am lamurit. Deci nu e vatra rece , ci doar vatra. Multumesc mult de tot!

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