The steel liquid superheat, velocity and rule of secondary cooling are important process parameters influence on billet internal quality.

钢水过热度、拉速和二冷制度是影响铸坯内部质量的重要工艺参数。

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Hot-shear blade is the main tool which is used to cut hot rolling steel billet. Its performance directly affects the quality of continuous metal casting billet.

热剪刃是钢厂用来切断热轧钢坯的主要工具，其性能直接影响到连铸钢坯的质量。

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By analyse the veracity and representative of the molten steel sample, the methods improving quality stability of billet were proposed.

分析了连铸中间罐试样的代表性和准确性，提出控制质量稳定性的建议。

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