Selection of Pouring Temperature for Large Frame Steel Castings

According to the drawing requirements, the material of the guide rail steel casting is ZG32MnMo. According to the relationship between ZG32MnMo temperature and solid phase ratio shown in the figure, its liquidus temperature is 1503 ℃, and its solidus temperature is 1448 ℃.

When using bottom pouring ladle pouring, combined with the structural characteristics of steel castings, in order to ensure good mold filling of steel castings, the pouring temperature is determined to be 1580-1600 ℃ through comprehensive consideration.

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