Le gaz inerte par excellence
Un gaz noble est 1.38 fois plus lourd que l'air et a une faible énergie ionisante. Son poids détermine la capacité à protéger le bain de fusion pendant les processus d'impression 3D.
1,3797
Densité relative
1,52J/mol
Première énergie ionisante
- 186°C
Point d'ébulition
Gaz associés
Sanarc H for Additive manufacturing
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Nitrogen fo Additive manufacturing
Under normal conditions nitrogen is an inert gas but which at high temperatures can react with some materials also used in 3D printing. The use of nitrogen in this process is indicated for austenitic steel powders.
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Helium for Additive manufacturing
Helium is an absolutely inert and very light gas. Its chemical and physical characteristics make it ideal for both PBF and DED 3D printing processes, but it is very rare and expensive, so it is mainly used in EBM processes given the low gas consumption that this process has. In DED processes it is often used mixed with other gases.
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