钨铁粉检测高速钢电渣锭金属熔池形状的研究
|
摘要
介绍了钨铁粉作为显示剂检测电渣锭金属熔池形状的机理,分析了钨铁粉粒度组成及加入量对熔池形状的影响,并通过直读光谱分析仪验证了金属熔池固液两相区的存在。结果表明,金属熔池的液、固相线若都能清晰地显现,则钨铁粉合适的粒度组成为60%(0.15～0.25)mm+30%(0.5～1.0)mm+10%(1.5～2.5)mm;适宜加入量为1 kg/100 mm钢锭直径。利用钨铁粉对电渣锭熔池形状的测定可为评价和优化电渣重熔工艺、改善高速钢钢锭铸态组织偏析提供可靠的依据和支持。
The mechanism of detecting the shape of molten pool of electroslag ingot with ferrotungsten powder as developer is introduced. The influence of particle size composition and addition amount of ferrotungsten powder on the shape of molten pool is analyzed. The existence of solid-liquid two-phase zone in molten pool is verified by direct reading spectrum analysis. The results show that if the liquid and solid phases of the molten pool can be clearly displayed, the appropriate particle size composition of ferrotungsten powder is 60%(0.15～0.25) mm + 30%(0.5～1.0) mm + 10%(1.5～2.5) mm, and the suitable addition amount is 1 kg/100 mm ingot diameter. The determination of molten pool shape of ESR ingot with ferrotungsten powder can provide reliable basis and support for optimizing ESR process and improving cast structure segregation of high-speed steel ingot.
The mechanism of detecting the shape of molten pool of electroslag ingot with ferrotungsten powder as developer is introduced. The influence of particle size composition and addition amount of ferrotungsten powder on the shape of molten pool is analyzed. The existence of solid-liquid two-phase zone in molten pool is verified by direct reading spectrum analysis. The results show that if the liquid and solid phases of the molten pool can be clearly displayed, the appropriate particle size composition of ferrotungsten powder is 60%(0.15～0.25) mm + 30%(0.5～1.0) mm + 10%(1.5～2.5) mm, and the suitable addition amount is 1 kg/100 mm ingot diameter. The determination of molten pool shape of ESR ingot with ferrotungsten powder can provide reliable basis and support for optimizing ESR process and improving cast structure segregation of high-speed steel ingot.
引文
[1]余洪波,吴立志.高速钢选择与应用探讨[J].河北冶金,2003,(1):48～51.
[2]邵青立,尤晓东,何宁.高速钢钢锭锻前加热工艺研究[J].河北冶金,2016,(6):31～34.
[3]李正邦.电渣冶金的理论与实践[M].北京:科学出版社,2010.
[4]宋照伟.钨块法测量电渣熔铸金属熔池形状研究与实践[C].第十二届铸造年会暨2011年铸造活动周论文集.洛阳,2014.
[5]姜周华,董艳伍,耿鑫,等.电渣冶金学[M].北京:科学出版社,2015.
[6]李正邦,李谊大.电渣熔炼滚珠轴承钢去除非金属夹杂物的研究[C].全国电渣冶炼第二届会议资料选编,1964.
[7]侯少良.电渣重熔金属熔池深度的实用测定方法[J].上海金属,2004,26(10):59～60.
[8]赵芳欣,陈瑞,李宝东,等.电渣熔铸异种钢水轮机导叶[P].中国,200410050554.9,2005-05-11.
[9]尧军平,耿茂鹏,马新生,等.调整功率对电渣重熔(ESR)熔池深度的影响[J].特殊钢,2004,25(3):23～25.
[10]陈家祥.炼钢常用图表数据手册第2版[M].北京:冶金工业出版社,2010.
[2]邵青立,尤晓东,何宁.高速钢钢锭锻前加热工艺研究[J].河北冶金,2016,(6):31～34.
[3]李正邦.电渣冶金的理论与实践[M].北京:科学出版社,2010.
[4]宋照伟.钨块法测量电渣熔铸金属熔池形状研究与实践[C].第十二届铸造年会暨2011年铸造活动周论文集.洛阳,2014.
[5]姜周华,董艳伍,耿鑫,等.电渣冶金学[M].北京:科学出版社,2015.
[6]李正邦,李谊大.电渣熔炼滚珠轴承钢去除非金属夹杂物的研究[C].全国电渣冶炼第二届会议资料选编,1964.
[7]侯少良.电渣重熔金属熔池深度的实用测定方法[J].上海金属,2004,26(10):59～60.
[8]赵芳欣,陈瑞,李宝东,等.电渣熔铸异种钢水轮机导叶[P].中国,200410050554.9,2005-05-11.
[9]尧军平,耿茂鹏,马新生,等.调整功率对电渣重熔(ESR)熔池深度的影响[J].特殊钢,2004,25(3):23～25.
[10]陈家祥.炼钢常用图表数据手册第2版[M].北京:冶金工业出版社,2010.