FIELD: metallurgy.
SUBSTANCE: at metal strip processing first chamber is tightly separated from second chamber. Also, the lock consists of at least two rollers (5, 6) tightly adjoining strip (4) on both sides. Additionally, at least one roller (5, 6) has internal rod (8) with coating out of elastic material (7). Notably, the rod in middle zone (9) is made as cylinder profile (10), while on ends (11, 12) it is radially expanded in comparison to middle zone (9). Roller (5, 6) in end zones (11, 12) is radially expanded in comparison to middle zone (9).
EFFECT: improved packing effect of chambers.
21 cl, 15 dwg
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