TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

QUENCHING GAS [11 records]

Record 1 2023-05-16

English

Subject field(s)
  • Gas Industry
OBS

quenching and tempering : term related to gas cylinder manufacturing.

OBS

quenching and tempering: term standardized by the International Organization for Standardization (ISO).

French

Domaine(s)
  • Industrie du gaz
OBS

trempe et revenu : terme relatif à la fabrication de bouteilles à gaz.

OBS

trempe et revenu : terme normalisé par l'Organisation internationale de normalisation (ISO).

Spanish

Save record 1

Record 2 2011-09-26

English

Subject field(s)
  • Radiological Physics (Theory and Application)
  • Scientific Instruments
CONT

A Geiger-Mueller(GM) tube is a gas-filled radiation detector. It commonly takes the form of a cylindrical outer shell(cathode) and the sealed gas-filled space with a thin central wire(the anode) held at [approximately] 1 kV [kilovolt] positive voltage with respect to the cathode. The fill gas is generally argon at a pressure of less than 0. 1 atm [atmosphere] plus a small quantity of a quenching vapor …

French

Domaine(s)
  • Physique radiologique et applications
  • Instruments scientifiques
CONT

[Détection et mesures des rayonnements nucléaires.] Gaz de remplissage : son choix est important puisque le développement de l’avalanche dépend largement de la dérive des électrons primaires. Toute trace d’oxygène doit être proscrite et on utilise le plus souvent un gaz rare (comme Ar [argon] ou Kr [krypton] ou Xe [xénon]) pour augmenter l’efficacité s’il s’agit de détecter des photons. Pour la détection des neutrons, on utilise d’autres gaz moins classiques. Ce gaz est souvent enfermé dans une enceinte scellée (emploi plus commode) ou peut être recyclé en permanence dans le compteur (dans la détection des particules chargées en particulier).

Spanish

Save record 2

Record 3 2009-10-15

English

Subject field(s)
  • Atomic Physics
CONT

When an ionizing particle enters the device, it collides with gas atoms and strikes electrons from their orbit around the nucleus of the gas atoms. In addition, an ionizing particle striking the outside of the tube can also knock electrons off the metal casing. In either case, these free electrons then are attracted to the positively charged central wire, gaining energy by the attraction. As they approach the wire they knock electrons off other atoms, creating an avalanche or cascade effect which results in a pulse of current large enough to be detected. A "quenching gas" is usually added to the filler gas so that these avalanches will dissipate over time and not continue indefinitely, which would cause inaccuracy or electronic failure.

French

Domaine(s)
  • Physique atomique
DEF

Un des constituants du mélange gazeux de remplissage d'un tube compteur de Geiger-Müller dont le rôle est de provoquer l'auto-extinction de la décharge [...]

OBS

[...] ce sont en général des vapeurs organiques.

Spanish

Save record 3

Record 4 2008-11-18

English

Subject field(s)
  • Gas Industry
  • Radiological Physics (Theory and Application)
CONT

The radiation is measured by measuring the number of pulses per time unit coming from the tube, which is proportional to the intensity of the radiation to be measured. The quenching gas in the radiation detector tubes is quenching after the elapse of a certain period of time the ionic current. This time is called the dead time of the G-M tube, during which the tube is unable to react to a possibly, arriving new quantum of radiation.

French

Domaine(s)
  • Industrie du gaz
  • Physique radiologique et applications
DEF

Élément constitutif du mélange gazeux destiné au remplissage d'un tube compteur de Geiger-Müller, qui accélère l'auto-excitation de la décharge.

Spanish

Save record 4

Record 5 2008-03-18

English

Subject field(s)
  • Surface Treatment of Metals
CONT

Gas quenching is a relatively new process with several important advantages, such as minimal environmental impact, clean products, and ability to control the cooling locally and temporally for best product properties. To meet the high cooling rates required for quenching, the cooling gas must flow at very high velocities, and such flows are highly turbulent and separated.

French

Domaine(s)
  • Traitements de surface des métaux
CONT

L'invention concerne un procédé de trempe au gaz de pièces métalliques après traitement thermique dans un four, la trempe au gaz s'effectuant dans le four même ou dans une chambre autonome et les gaz de refroidissement utilisés étant des gaz contenant de l'hélium. Un recyclage des gaz de refroidissement est effectué.

CONT

La trempe au gaz, moins sévère que l'huile, permet de limiter au minimum les déformations.

Spanish

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Record 6 2003-09-24

English

Subject field(s)
  • Ovens, Furnaces and Boilers (Heating)
CONT

The largest fluidized-bed boiler in operation ... generates 300,000 lb/hr (136,200 kg/hr) of high-pressure superheated steam for power generation. The boiler is a horizontally arranged multicell unit.

OBS

fluidized bed : A cushion of air or hot gas blown through the porous bottom slab of a container which can be used to float a powdered material as a means of drying, heating, quenching, or calcining the immersed components.

French

Domaine(s)
  • Fours et chaudières (Chauffage)
DEF

Chaudière dans laquelle le charbon broyé est maintenu en suspension par un courant d'air ascendant durant la combustion.

Spanish

Campo(s) temático(s)
  • Hornos y calderas (Calefacción)
DEF

Caldera de vapor en la que la calefacción se consigue por combustión de un combustible sólido en lecho fluidizado.

Save record 6

Record 7 2002-06-26

English

Subject field(s)
  • Coke
CONT

Quenching box for concurrent down-flow gas liquid mixture.

OBS

Used in cooling of the coke by wet quenching method

French

Domaine(s)
  • Cokes
OBS

Refroidissement ou extinction du coke. [...] Extinction humide.

Spanish

Save record 7

Record 8 1996-05-10

English

Subject field(s)
  • Analytical Chemistry
CONT

However, using pure helium as the carrier gas, several investigators have proposed direct methods for permanent gas analysis in contrast to Willis's indirect procedure using argon containing small amounts of ethylene or acetylene, the permanent gases being detected by their quenching effects upon the standing current of the impure argon.

French

Domaine(s)
  • Chimie analytique

Spanish

Save record 8

Record 9 1991-03-21

English

Subject field(s)
  • Fruits and Vegetables (Types and Processing - Food Ind.)
OBS

Machine for sorting potatoes and for screening for other objects before storing the potatoes.

OBS

fluidized-bed : A cushion of air or hot gas blown through the porous bottom slab of a container which can be used to float a powdered material as a means of drying, heating, quenching, or calcining the immersed components.

OBS

The dry bed is I believe redundant because fluidized bed (is with gas). I think it fluidized-bed.

Key term(s)
  • fluidized-dry bed separator

French

Domaine(s)
  • Fruits et légumes (Types et traitement - Alimentation)
OBS

Par analogie avec réacteur à lit fluidisé - Dictionnaire des industries.

OBS

Appareil permettant le triage des pommes de terre en séparant les impuretés qui s'y sont logées.

Spanish

Save record 9

Record 10 1985-05-14

English

Subject field(s)
  • Heat Treatment of Metals
  • Surface Treatment of Metals
  • Steel
DEF

... a case hardening process whereby nitrogen is introduced into the surface of a solid ferrous alloy by holding the metal at a suitable temperature... in contact with a nitrogenous gas, usually ammonia. Quenching is not required for the production of a hard case.

French

Domaine(s)
  • Traitement à chaud des métaux
  • Traitements de surface des métaux
  • Acier
CONT

Nitruration gazeuse. Pratique.-La nitruration consiste à soumettre l'acier à l'action d'un courant d'ammoniac gazeux; celui-ci se dissocie partiellement grâce à la présence de fer (catalyseur), et l'azote naissant est absorbé superficiellement par le métal à l'état (alpha), alors que l'hydrogène se dégage.

Spanish

Save record 10

Record 11 1978-05-28

English

Subject field(s)
  • Metal Quenching
OBS

quenching : Shock cooling by immersing liquid or molten material into a cooling medium(liquid or gas) ;used in metallurgy, plastics forming and petroleum refining.

OBS

... a step in heat treating.

OBS

crack: A break, fissure or rupture usually "V" shaped and relatively narrow and deep.

French

Domaine(s)
  • Trempe (Métal)
CONT

Les criques de trempe se forment en surface d'une pièce subissant un refroidissement trop énergique.

CONT

La méthode [examen magnétoscopique] est très employée, uniquement pour des matériaux ferromagnétiques, dans l'industrie mécanique (...) pour recherche les fêlures dues à un traitement thermique (criques de trempe) (...)

OBS

voir vedette.

Spanish

Save record 11

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