These defects can be reduced or elimination by adjusting proportion of the raw material charge or adopting other casting technologies and heat treatment.

但也存在着铸件增碳、夹渣等新问题，需要从调整炉料配比，以及采用其他铸造和热处理的工艺措施来加以解决。

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And the facility methods of establishing and maintaining the funnel charge level by using additional coke or normal material charge and charge coke are put forward.

并提出通过使用附加焦或正常料焦批等建立与维“护漏斗形”料面的简易方法。

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