厚大断面球墨铸铁轴承座的生产实践
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摘要
介绍了重16 t、最大壁厚大于300 mm的球墨铸铁轴承座的工艺优化及生产实践。通过Pro CAST模拟软件优化铸造工艺、使用保温冒口、选用优质原辅材料、喂线法球化处理、多次孕育处理,获得了各项指标优异的轴承座铸件。铸件检验结果表明:各项力学性能均达到了EN-GJS-400-18U材料标准的要求,铸件质量完全符合无损检测技术要求,该生产工艺可行。
The process optimization and production practice of the heavy section ductile iron bearing stand with the weight of 16 t and the maximum wall thickness of more than 300 mm were introduced. Through optimizing the casting process design by the Pro CAST simulation software, using insulating risers, selecting high quality raw materials, adopting the wire feeding spheroidization treatment and multiple inoculation treatment, the castings of bearing stand with excellent performance indexes have been produced. The results of the casting inspection show that all mechanical properties of the castings meet the requirements of EN-GJS-400-18 U grade nodular iron, and the quality of the castings is fully in conformity with the technical requirements of nondestructive testing, and the production process is feasible.
The process optimization and production practice of the heavy section ductile iron bearing stand with the weight of 16 t and the maximum wall thickness of more than 300 mm were introduced. Through optimizing the casting process design by the Pro CAST simulation software, using insulating risers, selecting high quality raw materials, adopting the wire feeding spheroidization treatment and multiple inoculation treatment, the castings of bearing stand with excellent performance indexes have been produced. The results of the casting inspection show that all mechanical properties of the castings meet the requirements of EN-GJS-400-18 U grade nodular iron, and the quality of the castings is fully in conformity with the technical requirements of nondestructive testing, and the production process is feasible.
引文
[1]吴德海,钱立,胡家骢.灰铸铁球墨铸铁及其熔炼[M].北京:中国水利水电出版社,2006.
[2]Roedter H,Gagne M.Ductile iron for heavy section wind mill castings:A european experience[C]//Keith Millis Symposium on Ductile Iron,2003.Ductile Iron Society,2003:176-182.
[3]王星,闫兴义,陈玉芳,等.大断面风电球墨铸铁铸件的技术控制[J].现代铸铁,2015(1):23-28.
[4]李继强,张坤,高文理,等.厚断面球墨铸铁件组织与性能分析[J].铸造,2015(9):869-873.
[5]宋贤发,贾志欣,傅明康,等.百吨级注塑机模板球墨铸铁件的生产[J].铸造,2014(8):819-823.
[6]郑燕华,张坤,宋贤发.孕育处理对厚大断面球铁组织和性能的影响[J].现代铸铁,2013(1):29-32.
[7]孙文山,梁委中,刘军,等.大型厚壁球铁件生产现状及展望[J].现代铸铁,1999(3):5-11.
[8]段汉桥,韦世鹤,肖理明,等.厚大断面球铁中的几个主要问题[J].中国铸造装备与技术,2001(3):7-12.
[9]尤明.大型风电主轴球铁铸件的生产工艺和质量控制[J].现代铸铁,2012(6):23-25.
[10]陈维平,柳哲,邓宇,等.厚大断面球墨铸铁件凝固过程物理模拟装置的研制[J].铸造,2011(8):775-778.
[11]李小娟,时胜利,付永晟,等.大断面球墨铸铁件的质量控制措施[J].铸造技术,2007(10):1383-1385.
[12]中国机械工程学会铸造专业学会.铸造手册:第一卷铸铁[M].北京:械工业出版社,2010.
[13]吴德海.球墨铸铁[M].北京:中国水利水电出版社,2006.
[14]孙玉福,尤三三,肖志云,等.镍对低温高韧性球墨铸铁组织及性能的影响[J].铸造,2011(2):120-125.
[15]苟华强.大型风力发电机组轮毂铸件的铸造工艺[J].东方电气评论,2008,22(88):66-69.
[16]尤三三.镍对低温高韧性球墨铸铁球墨铸铁组织及性能的影响[D].河南:郑州大学,2010.
[2]Roedter H,Gagne M.Ductile iron for heavy section wind mill castings:A european experience[C]//Keith Millis Symposium on Ductile Iron,2003.Ductile Iron Society,2003:176-182.
[3]王星,闫兴义,陈玉芳,等.大断面风电球墨铸铁铸件的技术控制[J].现代铸铁,2015(1):23-28.
[4]李继强,张坤,高文理,等.厚断面球墨铸铁件组织与性能分析[J].铸造,2015(9):869-873.
[5]宋贤发,贾志欣,傅明康,等.百吨级注塑机模板球墨铸铁件的生产[J].铸造,2014(8):819-823.
[6]郑燕华,张坤,宋贤发.孕育处理对厚大断面球铁组织和性能的影响[J].现代铸铁,2013(1):29-32.
[7]孙文山,梁委中,刘军,等.大型厚壁球铁件生产现状及展望[J].现代铸铁,1999(3):5-11.
[8]段汉桥,韦世鹤,肖理明,等.厚大断面球铁中的几个主要问题[J].中国铸造装备与技术,2001(3):7-12.
[9]尤明.大型风电主轴球铁铸件的生产工艺和质量控制[J].现代铸铁,2012(6):23-25.
[10]陈维平,柳哲,邓宇,等.厚大断面球墨铸铁件凝固过程物理模拟装置的研制[J].铸造,2011(8):775-778.
[11]李小娟,时胜利,付永晟,等.大断面球墨铸铁件的质量控制措施[J].铸造技术,2007(10):1383-1385.
[12]中国机械工程学会铸造专业学会.铸造手册:第一卷铸铁[M].北京:械工业出版社,2010.
[13]吴德海.球墨铸铁[M].北京:中国水利水电出版社,2006.
[14]孙玉福,尤三三,肖志云,等.镍对低温高韧性球墨铸铁组织及性能的影响[J].铸造,2011(2):120-125.
[15]苟华强.大型风力发电机组轮毂铸件的铸造工艺[J].东方电气评论,2008,22(88):66-69.
[16]尤三三.镍对低温高韧性球墨铸铁球墨铸铁组织及性能的影响[D].河南:郑州大学,2010.