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前言 1964年哈尔滨汽轮机厂和本溪钢厂根据1963～1972年十年科学技术发展规划(草案),健全和发展我国合金钢系统,满足二十万瓩汽轮机末级长叶片用材要求,共同协商研制长叶片钢,当时,只知道苏联1050mm长叶片采用Эи802钢,捷克840mm叶片采用SkodaT60钢,但详细成份不知道,Эк802钢调质后的大截面料块性能能否满足我们的长叶片要求?试验结果表明,Эи802钢较大截面料块调质后能达到σ_(0.2)≥70kg/mm~2、
Foreword In 1964, Harbin Turbine Works and Benxi Steel Works, according to the 1963 ~ 1972 Decade of Science and Technology Development Plan (draft), improve and develop our alloy steel system to meet the requirements of 200,000 瓩 steam turbine last grade long blade, negotiate the development of long Leaf steel, at that time, only know the Soviet Union 1050mm long blade using Эи802 steel, Czech Republic 840mm blade using SkodaT60 steel, but the detailed composition does not know, Эк802 steel quenched and tempered large section of the block performance can meet our long blade requirements? Test results The results show that the ‰ ‰ ‰ ‰ ¡õ802 steel can achieve σ_ (0.2) ≥70kg / mm ~ 2 after quenching and tempering,