The economic and technical results received from the improvement in the layout of the progressive die for the steel core of the sealing bar were stated.

阐述了密封条钢芯级进模排样的改进对模具结构的影响，以及所带来的经济、技术方面的变化特点。

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It is ideal for sealing all the random gaps between dummy bar head and mould copper plate, to prevent the hot metal infiltration and break out while casting.

非常适合于引锭头与结晶器铜板之间无规则缝隙的密封，防止开浇时渗、漏钢的现象的出现。

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After sealed by sealing rope, it is essentially solid-free with residue between dummy bar head and mould copper plate, no damage to the copper plate and easy to clean.

密封绳在开浇后与引锭头、铜板无粘结残留物，对铜板无损伤，易于清理。

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