摘要
在铸件材质和造型材料确定前提下,砂型表面的受热条件是铸件机械粘砂的主要影响因素。对美国C.Beckermann教授提出的铸钢件粘砂判据中的主要参数提出了修正建议,并利用铸件凝固过程温度场数值模拟计算技术,结合粘砂试件试验数据,获得了采用呋喃树脂自硬砂造型工艺条件下ZG06Cr13Ni4Mo低碳马氏体不锈钢铸件的机械粘砂判据曲线。经验证,机械粘砂判据曲线可定量预测铸件机械粘砂位置和面积。
Assuming that the casting alloy and molding materials are definite,the overheating of sand mould would be the most important technical factor causing the metal penetration.The correction of the main parameters,in the criterion of metal penetration of sand mould steel castings proposed by professor C.Beckermann,was put forward.Furthermore,the criterion curve of metal penetration is established to describe the relationship between the solidification conditions and the metal penetration,by comparing the experimental data with the numerical simulation results of temperature field during casting solidification process.It was verified that the criterion curve of metal penetration can be used to predict metal penetration of ZG06Cr13Ni4Mo low carbon martensitic stainless steel castings quantitatively.
出处
《铸造》
CAS
CSCD
北大核心
2010年第9期908-911,916,共5页
Foundry
基金
高档数控机床与基础制造装备国家科技重大专项子课题(2009ZX04014-061)
关键词
机械粘砂
判据
不锈钢铸件
呋喃树脂自硬砂
温度场
数值模拟
metal penetration
criterion
stainless steel casting
no-bake furan resin bonded sand
temperature field
numerical simulation
