对铸造工艺有一定了解，熟悉铸件易产生的缺陷形式。

Comprehend foundry technics, familiar with the casting defects in the form of easy to produce.

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铸造过程的数值模拟可以优化工艺设计，缩短产品试制周期，降低成本，减少铸件缺陷，确保铸件质量。

Numerical simulation for casting process may optimize craft design, shorting trial cycle, cut the cost, decrease casting defect and assure the casting quality.

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根据铸件大面积铁刺缺陷的技术攻关，论述了造成铸件缺陷的影响因素，制定一套可行的工艺参数，对改进工艺参数有一定参考作用。

The factors which have an effect on the formation of a kind of defect called "iron thorn"on the large area of casting are discussed, and process parameters are presented for the process improvement.

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