Dummy bar,
one of the important devices for continuous cast steel and ironmaking. The dummy bar is composed of a dummy bar head, a transition piece and a dummy rod. Before pouring, the dummy bar head and part of the transition piece enter the mold to form a movable "inner bottom" of the mold. After pouring, the molten steel solidifies and condenses with the dummy bar head, and the dummy rod is pulled by the straightener The casting slab is continuously pulled out from the mold until the dummy bar head is separated from the casting slab through the rear of the straightener and enters the dummy bar storage device.
1.
Fexible Dummy Bar , is used in various continuous casting and rolling mills, and its shaft is composed of dozens of chain links.
2.
Rigidity Dummy Bar , are only used for billet continuous casting | rolling mills. In the early days, the Rigidity Dummy Bar was a whole arc-shaped steel structure, which has now been made into several arc-shaped sections and connected by bolts. Such a Rigidity Dummy Bar is more flexible and convenient to insert into the mold, and it also brings convenience to the manufacture and transportation of the Rigidity Dummy Bar.
Using Rigidity Dummy Bar , the casting billet guiding device of continuous casting machine does not need to set many rollers to guide the Rigidity Dummy Bar , and at the same time, the pouring is very stable. Another great advantage of using rigid dummy bars is that the time for reinserting the ingot bars is greatly shortened, which improves the operating rate of the casting machine.
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