具有極高<span style="text-decoration:overline"><i>r</i></span>值的ELC—BH鋼板的新工藝

具有極高r值的ELC—BH鋼板的新工藝

摘要: 提出一個生產具有極高r的超低碳高強度烘烤硬化鋼板（簡稱ELC-BH鋼板）的新工藝，即熱軋→卷取→組織預處理→冷軋→退火（快冷）工藝.實驗表明，與傳統工藝相比，采用新工藝研制的ELC-BH鋼板不僅強度和烘烤硬化性未受到損害，而且r值提高到2.67.

Abstract: A new process by which an extra low-carbon and high strength bake-hard-ing with very high r-value can be produced is presented. The sheet produced by the process shows the same strength and bake-hardenability as that by conventional technology, but its r-value increases of 2.67.