亚洲国产精品免费在线观看-亚洲国产精品嫩草影院-亚洲国产精品嫩草影院久久-亚洲国产精品欧美日韩一区二区-亚洲国产精品欧美综合-亚洲国产精品区

長水口又稱保護套管，用于鋼包和中間包之間鋼流的保護澆注，可以防止鋼液二次氧化和從周圍空氣中吸收氮，同時，也避免了敞開澆注的卷渣問題。本公司生產(chǎn)的免烘烤型鋁碳長水口具有抗熱震性高，抗沖刷和抗侵蝕能力強等優(yōu)點，性能達到或超過國際同類產(chǎn)品的先進水平。

The long nozzle is also called guard casing , beingused to shroud the casting stream between ladle andtundish , having the function of reducing reoxidationand nitrogen absorption from the ambient air andavoding slag rollcaused by open casting . The Al , O-Cbasedno baking long nozzle produced by the companyIs characterized by high thermal shock resistance , andhigh antiscour and erosiln resistance , it s performancecomes up to or surpasses advanced Oworld level .