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本文主要介绍了在生产Ｂ级船板过程中，通过控制开轧温度，终轧温度及变形程度，细化晶粒，改善钢板的组织，以解决船板冲击韧性低的问题，提高船板生产的性能合格率。
This paper mainly introduces that in the process of producing class B shipbuilding, the problem of low impact toughness of shipbuilding plate is solved and the production of shipbuilding plate is improved by controlling the temperature of open rolling and the temperature of finish rolling and the degree of deformation, refining the grain and improving the structure of steel. The passing rate of performance.