求助(Z质量)? The plates should have a guaranteed through thickness ductility. This guarantee is given by the “Z” parameter value which is defined by the minimum average reduction of area on 3 specimen taken in the “Z” direction. Tests specimen, subjected to anticipated heat treatment cycle, are taken through the thickness and the said reduction shall not be less than 35% of the initial cross section : this corresponds to “Z35” quality. Test could be carried out following ASTM A770. 对这方面一点不了解,自己翻译出来的东西不忍直视,请各位高手帮忙翻译下,谢谢!!! 查看更多4个回答 . 1人已关注