C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
C22B 26/22 (2006.01) C22B 9/00 (2006.01) F27B 3/22 (2006.01) F27D 7/06 (2006.01)
Patent
CA 2311361
The present invention relates to an operation method of furnace equipment for magnesium alloys, wherein a bath surface is covered with a protection gas containing a sulphur compound. The purpose of this invention is to reduce the production costs and the damage to the environment as well as to ensure a particularly safe operation when handling magnesium liquid baths. To this end, the protection gas consists in a mixture of SO2 with an inert gas, wherein the proportion by volumes of SO2 is set at a precise value in a range of between 0.3 % and 1.5 %, preferably of between 0.5 % and 1.0 %.
L'invention concerne un procédé de fonctionnement d'installations de fours pour alliages de magnésium, selon lequel une surface de bain est recouverte d'un gaz de protection contenant un composé de soufre. L'invention vise à permettre une réduction des coûts et des nuisances pour l'environnement, ainsi qu'un fonctionnement particulièrement sûr lors de la manipulation de bains de magnésium liquides. A cet effet, on utilise comme gaz de protection un mélange de SO¿2? et d'un gaz inerte, la proportion en volume de SO¿2? étant fixée exactement à une valeur se situant dans une plage comprise entre 0,3 % et 1,5 %, de préférence entre 0,5 % et 1,0 %.
Marks & Clerk
Tcg Unitech Aktiengesellschaft
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