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argon-injection down tundish stopper rod
met.
【连】 中间包塞棒吹氩
(【技】采用浸人式水口进行保护浇注时,易吸人空气,产生二次氧化,导致水口堵塞。通过中间包塞棒吹氩,在浸人式水口内形成正压,可有效防止空气吸人,使浸人式水口保持畅通,铸坯质量得以提高。)
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