简析钙处理对管坯钢中夹杂物的影响

详细信息

Discussion on Effect by Calcium Treatment Process on Inclusions in Steel

摘要: 介绍了攀钢集团成都钢钒有限公司对管坯钢中夹杂物的控制情况,对比分析了两种钙处理工艺对30CrMo铝镇静管坯钢中Al₂O₃、MnS夹杂物的变性效果。分析结果表明,这两种钙处理工艺未使钢中的氧化物和硫化物完全变性,若要达到完全变性效果,须提高钢中有效钙含量。
- 炼钢 /
- 管坯钢 /
- 30CrMo /
- 炉外精炼 /
- 钙处理 /
- Al₂O₃夹杂物 /
- MnS夹杂物 /
- 变性效果
Abstract: Elaborated in the paper is how the inclusions in the steel for tube-rolling are controlled by Pangang Group Chengdu Steel and Vanadium Co.,Ltd.Comparatively analzyed are the results of two calcium treatment processes for denaturization of Al₂O₃ and MnS inclusions in the aluminium-killed 30CrMo steel for tube-rolling.Based on the analysis result,it is concluded that neither of the said two processes is capable of fully denaturizing both oxide and sulfide in the steel,and thus,only by means of increasing the effective content of calcium in the steel,can the purpose of full denaturization be met.
- Steel-making /
- Steel for tube-rolling /
- 30CrMo /
- Off-furnace refining /
- Calcium treatment /
- Al₂O₃ inclusion /
- MnS inclusion /
- Denaturization result