公开(公告)号：US11932920B2

公开(公告)日：2024-03-19

申请号：US17615922

申请日：2020-06-03

Applicant: CONSTELLIUM ISSOIRE

Inventor： Jocelyn Prigent ,  Philippe Jarry ,  Pierre Le Brun

IPC: C22B34/12 ,  C21C7/072 ,  C22B9/05 ,  C22B21/06

CPC classification number: C22B34/1295 ,  C21C7/072 ,  C22B9/05 ,  C22B21/064

Abstract: Liquid metal degassing device comprising a chamber containing a liquid metal bath, a device for circulating a gas through a purification chamber and in that the purification chamber comprises a getter material configured to trap dihydrogen from the circulating gas. Method for degassing a liquid metal bath to reduce the hydrogen concentration of the liquid metal comprising the following steps



a) Preparing a liquid metal bath, preferably an aluminum alloy
b) Circulating a gas,
c) Exchanging hydrogen from the circulating gas with the liquid metal such that the hydrogen dissolved in the liquid metal bath diffuses into the circulating gas and enriches the circulating gas with dihydrogen,
d) Purifying the circulating gas enriched with dihydrogen in a purification chamber comprising a getter material configured to trap dihydrogen from the circulating gas.