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CRUCIBLE PROCESS [4 records]

Record 1 2024-10-17

English

Subject field(s)
  • Occupation Names (General)
  • Physics
  • High-Temperature Technology (Mechanics)
CONT

Besides the method of crystallization in a crucible, high-temperature physicists and chemists were excited by two novel techniques for growing crystals from melt : the flame-fusion "Verneuil process"([circa] 1891) to synthesize artificial ruby and the Czochralski method for pulling metallic single crystals([circa] 1916).

Key term(s)
  • high temperature physicist

French

Domaine(s)
  • Désignations des emplois (Généralités)
  • Physique
  • Techniques des hautes températures (Mécanique)

Spanish

Save record 1

Record 2 2007-01-19

English

Subject field(s)
  • Occupation Names (General)
  • Gemmology
  • Diamond Industry
DEF

A member of a processing team who is responsible for cleaning the diamonds, during any stage of processing, by using hot or cold acid.

CONT

Boiler : responsible for cleaning polished diamonds at the end of the process using sulfuric acid in a crucible or beaker.

Key term(s)
  • diamond boiler

French

Domaine(s)
  • Désignations des emplois (Généralités)
  • Gemmologie
  • Industrie diamantaire
DEF

Membre de l'équipe production chargé du nettoyage des diamants à l'acide chaud ou froid.

Spanish

Save record 2

Record 3 1999-12-20

English

Subject field(s)
  • Metallurgy - General
DEF

Durville process : A casting process that involves rigid attachment of the mold in an inverted position above the crucible. The melt is poured by tilting the entire assembly, causing the metal to flow along a connecting launder and down the side of the mold.

Key term(s)
  • tilt casting

French

Domaine(s)
  • Métallurgie générale

Spanish

Save record 3

Record 4 1981-12-08

English

Subject field(s)
  • Aeroindustry
CONT

The blade shell, mated to a chill plate, is positioned under a water-cooled copper crucible and receives the pour of metal; the process is completed in about 20 seconds. The shell and liquid are then moved into one of 20 heater chambers in the facility for controlling the solidification process.

French

Domaine(s)
  • Constructions aéronautiques
CONT

Le moule de l'aube, ajusté à une coquille en fonte, est placé sous une lingotière en cuivre refroidie par circulation d'eau, et reçoit la coulée de métal liquide.

Spanish

Save record 4

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