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冒口模数定量计算法在铸钢工艺设计上的应用
Application of Quantitative Calculation Method of Riser Modulus in Process Design for Steel Castings
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- DOI:
- 作者:
- 赫振梅 李卿卿 李晓东
HE Zhenmei;LI Qingqing;LI Xiaodong
- 作者单位:
- 河北省高强度耐磨铸钢技术创新中心 河北北方铸业有限公司
Hebei Province High Strength Wear Resistant Steel Technology Innovation Center,Zhangjiakou 075132,China;Hebei North Casting Industry Co.,Ltd.,Zhangjiakou 075132,China
- 关键词:
- 冒口 模数 定量计算 最小安全高度 钢液富余体积比
riser modulus quantitative calculation minimum safety height surplus volume ratio of molten steel
- 摘要:
- 铸钢冒口模数定量计算法是一种铸钢冒口设计新方法,该方法以铸件和冒口的模数为基础,导出了"冒口最小安全高度计算公式"、"冒口富余钢液相对半径计算公式"、"冒口富余钢液相对高度计算公式"和"冒口富余钢液体积比计算公式"等4个冒口计算公式。用这4个公式可以设计铸钢冒口最小安全高度、铸件凝固后冒口中富余钢液合理体积比,其冒口最小安全高度计算值与MAGMA模拟结果很接近。结果表明,用该方法设计的冒口铸件未出现缩孔缺陷,保证了铸钢件的质量。对比传统的铸钢冒口经验公式计算方法,铸钢冒口模数定量计算法降低了对铸造工艺人员设计经验的要求,在铸钢工艺开发中得到了普遍应用,提高了工艺开发质量和效率。The quantitative calculation method of casting steel riser modulus was a new method for casting steel riser design.Based on the modulus of casting and riser,the formula for calculating the minimum safe height of riser,formula for calculating the liquid phase to radius of riser surplus steel,formula for calculating the liquid phase to height of riser surplus steel and formula for calculating the liquid product ratio of riser surplus steel were derived.These four formulas can be used to design the minimum safe height of casting riser and reasonable volume ratio of surplus molten steel in casting riser after solidification.The calculation value of the minimum safe height of riser was close to the MAGMA simulation result.The results show that the riser castings designed by this method have no shrinkage cavity defects and the quality of the steel castings is guaranteed.Compared with the traditional empirical formula for casting riser,the quantitative calculation method for casting riser modulus reduces the requirement for casting technician’s design experience and is widely used in casting process development,which improves the quality and efficiency of casting process development.