Laboratory Study on the Sintering Behavior of Zircon-Based Ladle Filler Sands,Steel Research International

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Laboratory Study on the Sintering Behavior of Zircon-Based Ladle Filler Sands
Steel Research International ( IF 1.9 ) Pub Date : 2021-03-27 , DOI: 10.1002/srin.202100071
Zhiyin Deng _{1,

2} , Boran Yang _{1,

2} , Miaoyong Zhu _{1,

2}

Affiliation

To understand the sintering behavior of zircon-based filler sands, laboratory experiments are conducted, and the effect of steel grades containing different contents of Mn and Al is studied. The results show that zircon filler sands have a sufficient sintering performance without the influence of steel. The reaction between the mullite grains and the decomposed zircon grains results in the formation of a liquid phase, making the sand grains bond. Liquid steel (even liquid pure iron) evidently impacts the sintering of zircon filler sands. Similar to chromite filler sands, the effect of Mn in liquid steel on the sintering of zircon filler sands is also remarkable, whereas the effect of Al (up to 250 ppm) is not so profound due to the existence of the mullite grains. In most cases of conventional Al-killed steel grades (Al ≤ 300 ppm), zircon-based filler sands show a sufficient sintering effect, whereas they are not suitable for high-Mn and high-Al steel grades due to the serious sintering result.

中文翻译：

锆石基钢包填料砂烧结行为的实验室研究

为了了解锆石基填料砂的烧结行为，进行了室内试验，并研究了含有不同锰和铝含量的钢种的影响。结果表明，锆英砂填料在不受钢影响的情况下具有足够的烧结性能。莫来石晶粒与分解的锆石晶粒之间的反应形成液相，使砂粒结合。液态钢（甚至液态纯铁）显然会影响锆石填料砂的烧结。与铬铁矿填料砂类似，钢液中的 Mn 对锆英石填料砂烧结的影响也很显着，而 Al（高达 250 ppm）的影响由于莫来石晶粒的存在而没有那么明显。在大多数常规铝镇静钢等级（Al ≤ 300 ppm）的情况下，

更新日期：2021-03-27

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