Numerical Simulation on Optimization of Shrinkage Cavity Defect of Steel SCM822H 3 t Ingot

杨万良; 李京社; 杨宏博; 宋方方; 黄婷

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Numerical Simulation on Optimization of Shrinkage Cavity Defect of Steel SCM822H 3 t Ingot

更新时间：2026-01-21

- Numerical Simulation on Optimization of Shrinkage Cavity Defect of Steel SCM822H 3 t Ingot
- Special Steel Vol. 34, Issue 5, Pages: 16-19(2013)
- 作者机构：
  
  1. 北京科技大学 1冶金与生态工程学院
  2. 冶金国家重点实验室,北京,100083
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：19 April 2013，
  
  Online First：19 September 2022，
  
  Published：19 September 2013
- 稿件说明：
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杨万良, 李京社, 杨宏博, et al. Numerical Simulation on Optimization of Shrinkage Cavity Defect of Steel SCM822H 3 t Ingot[J]. Special Steel, 2013, 34(5): 16-19.
DOI：

杨万良, 李京社, 杨宏博, et al. Numerical Simulation on Optimization of Shrinkage Cavity Defect of Steel SCM822H 3 t Ingot[J]. Special Steel, 2013, 34(5): 16-19. DOI：

摘要

在现场脱锭时铸锭表面温度测定值的基础上

利用ProCAST软件建立了SCM822H钢(/%:0.20C、0.80Mn、O.25Si、0.013P、0.006S、1.14Cr、0.39Mo、0.01V、0.036A1、0.000 2B)3 t铸锭(锭身高1 675 mm

冒口倾角65.3°

冒口内液面高290 mm)充型和凝固过程的计算模型。通过该模型计算得出冒口倾角、锭身高宽比与缩孔引起的锭身切除体积比的关系

优化了锭型参数一锭身高宽比为1 864/530

冒口倾角90°。按照优化锭型参数的模拟结果表明

采用新锭型可使锭身切除体积由原先的13.5%降至0

可保证将缩孔缺陷完全控制在冒口内。

Abstract

Based on the measured value of ingot surface temperature in ingot stripping at situ

with using ProCAST software the calculation model for filling and solidifying process of 3 t ingot (body height 1675 mm

hot top inclined angle 65. 3°

height of liquid surface in hot top 290 mm) of steel SCM822H (/% ： 0.20C

0.80Mn

0.25Si

0.013P

0.006S

1.14Cr

0.39Mo

0.01V

0.036Al

0.0002B) has been established. With calculation by the model the relation between hot top inclined angle

ingot body height-width ratio and body cut-off volume ratio caused by shrinkage cavity is gotten to get the optimized ingot parameters i. e. body height-width ratio 1846/630 and hot top inclined angle 90°. According to optimized ingot mould parameters the simulation results show that with using the new ingot mould the ingot body cut-off volume ratio decreases from original 13. 5% to 0

it is available to ensure all the shrinkage cavity is in the hot top.

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