| 潜孔钻头用钢18CrNi3MoA锻制圆棒的生产实践 |
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| 引用本文： | 郑安雄,徐素鹏,王学玺,王欢,童利利,黑志刚.潜孔钻头用钢18CrNi3MoA锻制圆棒的生产实践[J].特殊钢,2021,42(2):49-51. |
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| 作者姓名： | 郑安雄 徐素鹏 王学玺 王欢 童利利 黑志刚 |
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| 作者单位： | 1河南中原特钢装备制造有限公司技术中心，济源459000；
2济源职业技术学院冶金化工系，济源459000 |
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| 摘 要： | 根据潜孔钻头用钢18CrNi3MoA技术要求及钢种特性,通过40t电弧炉（终点C]≥0.05%、P≤0.003%,出钢温度≥1630℃）-LF（精炼渣碱度3.0～4.5）-VD（≤70 Pa时间≥25 min）-氩气保护1.52t铸锭-钢锭（1250±10℃ 15h均质化处理-锻坯Φ140 mm,780～810℃锻至Φ110 mm-完全退火等工艺,试制的3炉18CrNi3MoA钢圆棒的化学成分均满足技术要求,锻材氧含量12.0×10-6～13.5×10-6,非金属夹杂物均≤1级;带状组织2级、奥氏体晶粒度8.5级,力学性能测定均满足技术要求。
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| 关 键 词： | 潜孔钻头 18CrNi3MoA钢 生产实践 力学性能 氧含量 晶粒度 |
Production Practice of Steel 18CrNi3MoA Forge Round Bar for Depth Drill Bit |
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| Zheng Anxiong,Xu Supeng,Wang Xuexi,Wang Huan,Tong Lili,Hei Zhigang.Production Practice of Steel 18CrNi3MoA Forge Round Bar for Depth Drill Bit[J].Special Steel,2021,42(2):49-51. |
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| Authors: | Zheng Anxiong Xu Supeng Wang Xuexi Wang Huan Tong Lili Hei Zhigang |
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| Affiliation: | 1 Technology Center, Henan Zhongyuan Special Steel Equipment Manufacturing Go Ltd, Jiyuan 459000；2 Department of Metallurgy and Chemical Engineering, Jiyuan Vocational and Technical College, Jiyuan 459000) |
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| Abstract: | According to depth drill bit steel ]8CrNi3MoA's technical requirements and steel properties, three heats steel 18CrNi3MoA round bars are produced by process of 40t EAF (end C] ≥0. 05% , P] ≤0. 003% , tapping temperature ≥1630 ℃) -LF fining (refining slag basicity 3. 0 ~4.5)-VD ( ≤70, Pa,≥ 25 min)-argon shield 1.52 t ingot-casting- ingot homogenization treated at (1250 ± 10) ℃ for 15h-forging billet Φ140 mm at 780 -810℃ forging to Φ110 mm-full annealing. The chemical constituents satisfied the technical requirements,oxygen content in forgings 12.0 x 10 -6~ 13. 5 x 10-6, non-metallic inclusions rating≤1 , rating of banded structure is 2, austenitic grain scale is 8.5 ,and mechanical properties test satisfiy the technical requirements. |
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| Keywords: | Depth Drill Bit 18CrNi3MoA Steel Production Practice Mechanical Properties Oxygen Content Grain Scale |
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