ISSN:1003-8620

CN:42-1243/TF

主管:中信泰富特钢集团股份有限公司

主办:大冶特殊钢有限公司

特殊钢 ›› 2015, Vol. 36 ›› Issue (6): 20-22.

• 工艺技术 • 上一篇    下一篇

CaF2-CaO-Al2O3-SiO2-MgO五元渣的表面张力及其在镍基合金电渣重熔的应用

刘立1,赵俊学2,李献民1,丁五洲1,陈峰1,李小孟1,2   

  1. 1宝钛集团有限公司,宝鸡721014;
    2西安建筑科技大学,西安710000
  • 收稿日期:2015-06-05 出版日期:2015-12-01 发布日期:2022-08-12
  • 作者简介:刘 立(1983-),男,硕士(2010年毕业于西安建筑科技大学),工程师,2007年西安建筑科技大学(本科)毕业,钛、镍 合金熔炼研究。
  • 基金资助:
    国家自然科学基金项目资助(51174155)

Surface Tension of Pentary Slag CaF2 -CaO-Al2O3 -SiO2 -MgO and Its Application in Nickel Base Alloy Electro-Slag Remelting

Liu Li1, Zhao Junxue2, Li Xianmin1, Ding Wuzhou1, Chen Feng1,Li Xiaomeng1,2   

  1. 1 Baotai Group Co Ltd, Baoji 721014;
    2 Xi'an University of Architecture and Technology, Xi'an 710000
  • Received:2015-06-05 Published:2015-12-01 Online:2022-08-12

摘要: 试验研究了五元渣(/%:50~65CaF2,6~15CaO,18~30Al2O3,4~10SiO2,1~7MgO)的组元含量、熔渣温度(1330~1463℃)对表面张力的影响。结果表明,随熔渣温度升高,其表面张力下降,1463℃五元渣的表面张力为0.372~0.418 N/m。60CaF2-15CaO-6SiO2-18Al2O3-5MgO具有较低的表面张力(0.375 N/m),较好的流动性和低粘度值。3 t电渣炉熔炼镍基合金Inconel 600和625的工业应用结果表明,电渣锭成分均匀,[O]≤20×10-6,[N]≤50×10-6,平均电耗从原ANF-6渣重熔的1933 kWh/t降至1 326 kWh/t。

关键词: 电渣重熔, 五元渣, 表面张力, 镍基合金, 应用

Abstract: The effect of ingredient of pentary slag (/% : 50~65CaF2, 6 ~ 15CaO, 18 ~ 30Al2O3, 4 ~ 10SiO2, 1 ~ 7MgO) and melting slag temperature (1330-1463 ℃ ) on its surface tension has been studied. Results show that with increasing melting slag temperature, its surface tension decreases, and the surface tension of pentary slag at 1 463 ℃ is 0.372-0.418 N/m. The surface tension of slag 60CaF2-15CaO-6SiO2-18Al2O3-5MgO has lower surface tension (0.375 N/ m), better fluidity and lower viscosity value. The results of commercial production of nickel base alloys Inconel 600 and 625 by 3 t ESR unit show that the elements content in ESR ingot are uniform, the gas content [O] ≤20×10-6 and [N] ≤50×10-6, the average power consumption decreases to 1 326 kWh/t from original 1933 kWh/t by remelting with slag ANF-6.