| 摘要 |
With the protective shield, which can be heated from the outside, for equipment for the heat treatment of workpieces, especially for annealing bundles (2) of sheet, a protective gas circulates within the protective shield (5) receiving the material being annealed. In the protective shield (5), helically extending gas-guiding and stabilising flanges (21) are formed which point inwards, extend over the entire height (22) or over part of the height of the protective shield (5) and, on the inside thereof, form gas guide channels (21a). <IMAGE>
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