B - Operations – Transporting – 22 – D
Patent
B - Operations, Transporting
22
D
B22D 21/04 (2006.01) B22D 46/00 (2006.01)
Patent
CA 2628960
Disclosed is a protective gas composition for preventing combustion of a molten magnesium/magnesium alloy. The protective gas composition is composed of a compound selected from the group consisting only of specific fluorine- containing organic compounds, namely 1,1,1,3,3-pentafluoropropane (HFC-245fa), 1,3,3,3-tetrafluoropropene (OHFC-1234ze), methyl 1,1,2,2-tetrafluoroethyl ether (HFE-254pc) and mixtures of those, and a carrier gas.
La présente invention concerne une composition gazeuse protectrice destinée à empêcher la combustion du magnésium/d~un alliage de magnésium à l~état fondu. La composition gazeuse protectrice se compose d~un composé choisi dans le groupe constitué seulement de composés organiques fluorés spécifiques, à savoir le 1,1,1,3,3-pentafluoropropane (HFC-245fa), le 1,3,3,3-tétrafluoropropène (OHFC-1234ze), l~éther de méthyle et de 1,1,2,2-tétrafluoroéthyle (HFE-254pc) et des mélanges de ceux-ci, et un gaz porteur.
Hibino Yasuo
Kamado Shigeharu
Okumura Hayato
Sakyu Fuyuhiko
Yamagata Daisuke
Central Glass Company Limited
Nagaoka University Of Technology
Robic
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