【摘要】 论叙了衡阳钢管厂LF前-LF后-VD后-中包-管坯-钢管的各工序显微夹杂物在钢中的数目变化及粒径分布,分析了显微夹杂物在圆铸坯径向截面的分布以及钢管坯沿横向和纵向的数目变化,探讨了夹杂物的来源。结果表明,应该实施增加脱氧用铝量,使用活性石灰,改进中包保护渣等措施。更多还原

【Abstract】 The present paper discusses changes of micro inclusions in steel in both quantity and in diameter distribution during various processing phases such as before and after LF process,after VD process and in tundish,tubes bloom and steel pipe and analyzes distribution of the micro inclusions in the longitudinal section of the round billet as well as changes of inclusions in quantity along the longitude and traverse directions of tube bloom and discusses the source of inclusions.Results show that such a few technical measures as increase in the deoxidation aluminum content,use of active lime stone and improvement in the tundish flux should be adopted.更多还原