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Question

There shall be documented procedures for the control of critical casting variables, including

but not limited to, control of steel temperature and casting speed.

There shall be documented procedures for sequence casting (if practised) that ensure

suitable heat separation at changeover.

There shall be defined criteria for assessment of cast billet quality that ensures that only

steel of suitable quality is released for further processing. Rectification of surface quality

defects to obtain a suitable quality level is permitted.

Where billets are produced for external sale, integration of billets from more than one batch

shall not be performed..

Answer 1

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應有文件化的，對鑄件變量的關鍵控制程序，包括

但不只限於，鋼溫和鑄造速度的控制。

應有文件化的鑄造序列程序（如果可行），以確保

在轉換(changeover)時，合適的熱分離。

也須定義對鑄坯品質的評估標準，確保只有合適的優質鋼材被釋放到下一步的處理。表面質量的缺陷整改以獲得合適的質量級別是允許的。

用於外部銷售鋼坯生產時，不得將不同批次混在一起.