摘要
φ2 100 mm特大型锻钢支承辊用钢锭吨位大,易出现偏析、疏松和缩孔。特制订了电炉粗炼、钢包精炼炉精炼的双真空工艺线路,以及双包合浇、成分分包控制的工艺方案。通过严格执行工艺,生产出了符合技术要求的特大型钢锭。
The ingot for Φ1200 mm oversize heavy forged steel back up roll is characterized in huge tonnage, easy segregation, scatter and cavitation. Two vacuum technologies of coarse smelting furnace and ladle refining furnace were particularly made out, as well as the technological programs of two ladles moulding at the same time and composition subpaekage control. Finally the oversize heavy ingot was produced by those technologies implement and satisfied the technical requirements.
出处
《大型铸锻件》
2008年第2期32-33,共2页
Heavy Casting and Forging
关键词
锻钢支承辊
冶炼
双真空
双包合浇
forged steel back up roll
smelt
two vacuum
two ladles moulding at the same time
