【摘要】 提高火力发电厂效率的主要途径是提高蒸汽的参数即提高蒸汽的压力和温度,而提高蒸汽参数的关键有赖于金属材料的发展。从发展超临界、超超临界机组与发展新钢种的关系以及超临界、超超临界锅炉时钢材的要求,概述了火电锅炉用钢的发展历程以及部分新钢种的性能。更多还原

【Abstract】 The main way of raising the efficiency of fossil - fired power plant is to raise the steam parameters,i.e, to raise the steam pressure and temperature,however,the key to raising steam parameters depends upon the devebpment of metallic material.This paper, from the relationship between the devebpment of supercritical pressure,ultra supercritical pressure units and the development of new steel material as well as the requirements of supercritical pressure,uttra supercritical pressure boiler for steel material,briefs the developmental course of steels used for utility boilers and the properties of part new steel material.更多还原