【作者】 程礼梅； 张立峰；

【Author】 Limei Cheng;LifengZhang;School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing;

【机构】 北京科技大学冶金与生态工程学院；

【摘要】 中间包覆盖剂在中间包冶金过程中起着重要的作用,对钢的洁净度有直接影响。中间包覆盖剂的理化性能是影响中间包覆盖剂的保温、防止二次氧化以及夹杂物吸附等作用的关键因素。在本研究中,通过实验室实验研究了中间包碱度对其熔化性能的影响。其次,为了研究中间包覆盖剂对氧化铝夹杂物的吸附作用,通过座滴法测量了中间包覆盖剂与氧化铝之间的接触角。同时,针对中间包覆盖剂对耐火材料的侵蚀,研究了中间包覆盖剂在纯氧化铝耐材上的渗透深度。随着中间包覆盖剂碱度的增加,其开始熔化温度和完全熔化温度增加,同时其对氧化铝夹杂物的吸附能力增加。更多还原

【Abstract】 Tundish fluxes play a more and more important role in the tundish metallurgy process,directly affecting the steel cleanliness of the steel products.Physiochemical properties of tundish fluxes are the key factor for thermal insulation,reoxidation protection,and inclusion absorption.In the current study,laboratory experiments were conducted to study the effect ofbasicity oftundish fluxes on melting properties.In order to study the absorption of Al₂O₃ inclusions by tundish fluxes,the sessile drop method was employed to measure the contact angle between tundish fluxes and the Al₂O₃ substrate.Aiming at the corrosion of refractory,the penetration depth of tundish fluxes in Al₂O₃ substrate was studied.With the increase of basicity,the start and end melting temperature wereincreased,and the absorption capacity of Al₂O₃ inclusions was improved.更多还原