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EP0048641A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Means for protecting molten metal in a sliding gate

Assignee: Air Liquide SA
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Filing: 1981-08-18
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Granted: —
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Expires: 2001-08-18
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Abstract

Abstract Translated from French L'invention concerne la protection du jet de coulée d'un métal en fusion contenu dans un récipient (1) et traversant un dispositif obturateur à plaques comportant une plaque (11) fixe et une plaque (12) mobile munie d'une busette (13) au moins. On introduit, dans le dispositif précité, un gaz pratiquement inerte vis-à-vis du métal et ayant une pression légèrement supérieure à la pression atmosphérique et on répartit ce gaz autour du métal alors qu'il traverse ledit dispositif de façon à l'isoler de l'air ambiant par une barrière de protection gazeuse continue. The invention relates to the protection of the pouring jet of a molten metal contained in a container (1) and passing through a plate shutter device comprising a fixed plate (11) and a movable plate (12) provided with a nozzle ( 13) at least. A gas which is practically inert with respect to the metal and having a pressure slightly higher than atmospheric pressure is introduced into the aforementioned device and this gas is distributed around the metal while it passes through said device so as to isolate it ambient air through a continuous gas protection barrier.

Inventors

  • 👤 Albert-Gilbert Goursat
  • 👤 Thierry Hersant
  • 👤 Jacques Nicolas

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-08 14:24
CPC Classifications
B; B22; B22D; B22D41/00; B22D41/14; B22D41/22; B22D41/42

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

CH387883A Cited
FR2227073A1 Cited
FR2252157A1 Cited
US4131219A Cited
FR2395095A1 Cited
FR2396611A1 Cited
FR2403852A1 Cited

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