Alternative TitleNumerical simulation and technology practice of casting-forging integration liquid core forging for heavy ingot
赵子文1; 曹艳飞2; 秦卓1; 孙明月2; 刘宏伟2; 李殿中2; 王亚安1; 王旭明1; 杨德生1; 宋道春3
Source Publication锻压技术
Abstract为了提高大型锻件的生产效率、降低生产成本,利用THERCAST和FORGE软件包,以09MnNiD钢材料为对象,对倒锥度19 t钢锭的凝固、液芯锻造全过程进行计算机数值模拟,预测液芯率及相应时间节点。根据模拟结果制定了19 t级大型钢锭铸锻一体化液芯锻造生产工艺,并将制定的工艺应用于生产实践。实践结果表明,采用数值模拟仿真分析指导大型钢锭铸锻一体化,实现液芯锻造工艺的制定,达到传统锻件的技术水平,钢锭在模时间减少了90%以上,钢锭利用率提高了10%,吨钢平均可节约天然气300 m~3以上。通过精细化的生产组织、精确控制液芯率、钢锭超高温热送及液芯锻造,实现了余热利用,减少加热火次,提高锻造效率,节能节材增效显著。
Other AbstractIn order to improve the production efficiency of large forgings and reduce the production costs,the overall process including solidification and liquid core forging for a 19 t taper steel ingot was simulated by software THERCAST and FORGE for 09MnNiD steel,and the core rate and corresponding time nodes were predicted.Then,the manufacturing techniques for liquid core forging with large-scale steel ingot weighted about 19 t were formulated based on simulation results,and the developed process was applied to the production practices.The practical results show that the integration of large ingot casting and forging is guided by the numerical simulation analysis to formulate the liquid core forging technology,and the technical level of traditional forgings is reached.Therefore,the mold time of ingot is reduced by more than 90%,the utilization rate of ingot is increased by 10%,and the average tonnage of steel saves more than 300 m~3 of natural gas.Furthermore,the waste heat utilization is realized by the fine production organization,the accurate control of liquid core rate,the ultra high temperature heat transfer of ingot and the liquid core forging,and the heating time is reduced to improve the forging efficiency and increase the efficiency in the energy and material saving obviously.
Keyword铸锻一体化 钢锭 液芯锻造 09MnNiD钢
Indexed ByCSCD
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GB/T 7714
赵子文,曹艳飞,秦卓,等. 大型钢锭铸锻一体化液芯锻造数值模拟及工艺实践[J]. 锻压技术,2019,000(005):21-28.
APA 赵子文.,曹艳飞.,秦卓.,孙明月.,刘宏伟.,...&宋道春.(2019).大型钢锭铸锻一体化液芯锻造数值模拟及工艺实践.锻压技术,000(005),21-28.
MLA 赵子文,et al."大型钢锭铸锻一体化液芯锻造数值模拟及工艺实践".锻压技术 000.005(2019):21-28.
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