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HELIUM WELDING [8 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2021-10-29

English

Subject field(s)
  • Nuclear Fission Reactors
CONT

The upper plug comprises a small-diameter orifice, called "seal weld hole, "enabling the fuel rod to be pressurised with helium before plugging this hole by welding, this operation is often being called "seal welding. "

French

Domaine(s)
  • Réacteurs nucléaires de fission
DEF

Obturation par soudage du queusot d'un crayon de combustible mox.

OBS

queusotage : désignation et définition publiées au Journal officiel de la République française le 5 septembre 2021.

Spanish

Save record 1

Record 2 2015-03-19

English

Subject field(s)
  • Gas Welding
  • Arc Welding
CONT

The course includes ... acetylene welding of aluminium castings, argon tungsten arc welding, argon metal arc welding ...

OBS

Gas metal-arc welding. Inert-gas-shielded metal-arc welding with consumable, continuous electrodes(called GMAW for gas metal-arc welding) requires no flux and produces welds without a slag cover. The arc is in an atmosphere of argon or helium... Inert-gas shielding is particularly advantageous in welding reactive metals, such as titanium... and in welding metals, such as aluminium and stainless steel, which are susceptible to porosity.

French

Domaine(s)
  • Soudage au gaz
  • Soudage à l'arc
CONT

Les procédés de soudage sous argon TIG [Tungsten Inert Gas] et MIG sont utilisés pour souder dans de très bonnes conditions l'acier inoxydable et les alliages légers [...]

OBS

Trois procédés [...] successivement créés, ont reçu les symboles TIG, MIG et MAG [Metal Active Gas]. Ce sont des procédés de soudage à arc apparent.

OBS

[...] le procédé MIG (metal inert gas) remplace l'électrode réfractaire de tungstène par un fil électrode fusible [...] déroulé à vitesse constante. L'électrode est toujours positive, ce qui convient au soudage des métaux et alliages légers [...] La torche utilise comme gaz inerte de l'argon ou un mélange d'argon et d'hélium.

Spanish

Save record 2

Record 3 2011-12-21

English

Subject field(s)
  • Nuclear Fission Reactors
CONT

The rods contain a stack of fuel pellets held by bearing against one of the plugs(called lower plug) with the help of a spring compressed between the fissile column and the opposite plug(upper plug). The upper plug comprises a small-diameter orifice, called "seal weld hole, "enabling the fuel rod to be pressurised with helium before plugging this hole by welding, this operation is often being called "seal welding. "

French

Domaine(s)
  • Réacteurs nucléaires de fission
CONT

Crayonnage. Les pastilles [de combustible] sont rangées en colonnes de façon à obtenir la longueur voulue de l’empilement […] Les crayons préalablement équipés, constitués de la gaine, du bouchon inférieur soudé et de l’entretoise inférieure (crayons [de l’entreprise] STBI) sont alors accostés au dispositif de remplissage assurant l’étanchéité entre crayon et boîte à gants des pastilles[.] […] le bouchon supérieur est serti, puis soudé. Ensuite, au poste de travail suivant, le bouchon supérieur est perforé (queusot) pour conditionner l’intérieur du crayon en hélium sous pression (20 à 30 bar) puis le queusot est obturé.

Spanish

Save record 3

Record 4 2006-10-26

English

Subject field(s)
  • Chemistry
DEF

An inert light gas, He, which is odorless, colorless, and not flammable.

CONT

Helium is extracted from natural gas sources in the Texas and Oklahoma ... and Southwest Kansas ... The element is believed to be trapped in the natural gas pockets after disintegration from uranium and thorium.

CONT

... uses for helium[ :] filling party balloons as it is a much safer gas(non-flammable) ;widely used as an inert gas shield for arc welding; high speed push gas inside air to air missiles for guidance corrections; protective gas in growing silicon and germanium crystals, and in titanium and zirconium production; cooling medium for nuclear reactors, helium won’t become radioactive; a mixture of 80% helium and 20% oxygen is used as an artificial atmosphere for divers and others working under pressure; cryogenics and superconductivity; rare document preservation... Independence) ;as a gas for supersonic wind tunnels; pressurizing agent for liquid fuel rockets(inert so won’t react) ;leak detection agent for extremely small leaks; nuclear detonation simulations(using conventional explosives) ;isotopic dating by helium ratios(seawater, ocean beds, etc) ;helium/neon lasers; helium cardio-pulmonary resuscitation pump(heart surgery) ;helium filled border patrol "AEROSTAT" monitoring blimps.

OBS

Helium has an atomic number of 2, an atomic weight of 4, density of 0.1785 kg/m³ at STP. Helium can be liquefied at 4.2 K (-269°C).

French

Domaine(s)
  • Chimie
DEF

Gaz rare le plus léger.

OBS

(Élément de symbole He). Numéro atomique : 2. Masse atomique : 4,0026. Température de fusion : -269,7 °C. Température d'ébullition : -268,934 °C. Masse volumique : 0,126 g/cm³. État d'oxydation : 0.

OBS

Gaz rare utilisé en mélange pour la plongée profonde.

Spanish

Campo(s) temático(s)
  • Química
Save record 4

Record 5 2000-05-02

English

Subject field(s)
  • Welding - Various Processes
DEF

This process, a variation of stud welding, is basically the same as that used for stud welding, except that an inert gas or flux, such as argon or helium, is used for shielding.

OBS

gas shielded stud welding: term standardized by the American Welding Society (AWS).

French

Domaine(s)
  • Procédés de soudage divers

Spanish

Save record 5

Record 6 2000-04-25

English

Subject field(s)
  • Welding - Various Processes
CONT

Orbital welding for the manufacture of toxic gas handling pipework, gas panels and manifolds is followed by helium mass spectrometer leak testing and inert gas backfill.

PHR

Arc orbital welding.

PHR

Automatic orbital welding.

French

Domaine(s)
  • Procédés de soudage divers
CONT

Il est bon de savoir que l'on a utilisé, mais d'une manière peu courante, deux autres façons d'engendrer une soudure par friction : - le soudage radial [...] - le soudage orbital, qui permet de respecter l'alignement relatif des pièces ou de réaliser l'assemblage de deux barres de section carrée.

Spanish

Save record 6

Record 7 1993-07-22

English

Subject field(s)
  • Welding - Various Processes
DEF

Plasma arc welding using an additional consumable electrode and an inert shielding gas, e. g. argon, helium or their mixtures.

OBS

Term and definition standardized by ISO.

French

Domaine(s)
  • Procédés de soudage divers
DEF

Procédé de soudage au plasma avec une électrode fusible additionnelle sous gaz de protection inerte du type argon, hélium ou un mélange de ces gaz.

OBS

Terme et définition normalisés par l'ISO.

Spanish

Save record 7

Record 8 1976-06-19

English

Subject field(s)
  • Welding - Various Processes

French

Domaine(s)
  • Procédés de soudage divers

Spanish

Save record 8

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