作者：Satoru Ito;Koichiro Kataoka;Akira Ojima;
作者單位：Refractory Ceramics R&D Div., Environment & Process Technology Center, Nippon Steel Corporation 20-1 Shintomi, Futtu-City, Chiba 293-8511
刊名：Journal of the Technical Association of Refractories
ISSN：0285-0028
出版年：2006-01-05
卷：26
期：3
起頁：189
止頁：194
分類號：TQ175
語種：英文
關鍵詞：
內容簡介Since 1983, molten iron pretreatment (hereafter abbreviated ORP) has been done in torpedo cars (hereafter abbreviated TPC), at the Kimitsu Steel Works; the wear of the chamotte refractory brick which were used initially, was high, resulting in poor refractory life. To improve the refractory life, Al_2O_3-SiC-C brick were developed, and based on these brick, which were improved by means of glassy and MgO additions, the refractory durability was improved, and the TPC lining life was prolonged. Concerning the TPC lining repair procedure, the automated wet gunning process of shotcreting was introduced in 1998, after trials of the gunning method and vibration trowelling. Thereafter, the ORP treatment was changed to the converter at Kimitsu Steel Works. This paper reviews the refractory materials developed in the course of trials and the transition of installation procedures, and the future trend of TPC refractories, and repair methods, were discussed.
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