Research of Rolling Process for Thin High Strength Hull Structural Steel
LIU Zetian
LU Bin
HUI Xin
DONG Ruifeng
MA Yonglin
Abstract：In this article, rolling process that how to make thin plates using thick casting slabs was designed. The difference of mechanical property and microstructure of EH40 with two different rolling processes were also researched. The results showed that the self-cogging process had obvious influences on the low temperature toughness and microstructure of plates. An unreasonable self-cogging process can cause terrible mixed crystal and some bigger grains, which have bad effects on the low temperature toughness. If less passes were used in self-cogging process by applying bigger draft every pass, good microstructure was gained. The grain was uniform and small, and plates have excellent low temperature toughness.
Keywords：thin patehigh strength hull structural steelself-cogging processlow temperature toughness
Publication Date：2014-11-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：3( 34-35,38 )