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近年来火电机组向大型化、高参数化发展的趋势日益明显,超临界参数的火电机组已经在我国大量设计建造。作为火电机组三大主机之一的锅炉。对其所使用钢的耐高温高压、耐腐蚀、性能稳定等方面提出了更高的要求。新型锅炉用钢的研制、开发与应用.一直是火电机组发展所面临的重大课题,各国均投入了大量的人力、物力从事相关的研究工作。我国火电机组锅炉用钢的开发,近几十年来几乎处于完全停滞状态。目前超临界火电机组,甚至包括部分亚临界机组锅炉中的许多关键材料完全依赖进口。新材料的开发和应用是锅炉制造取得技术进步的基础,新材料是由材料标准和技术条件作为载体而实施的。虽然从国外购买先进材料是现阶段发展超临界火电技术的最现实的途径.但是只有
In recent years, thermal power units to large-scale, high parameterization of the development trend is increasingly evident, the supercritical thermal power units have been designed and built in China. As one of the three major thermal power unit boiler. The steel used for its high temperature and pressure, corrosion resistance, stable performance and other aspects put forward higher requirements. The research, development and application of new boiler steel have always been a major issue for the development of thermal power units. All countries have invested a great deal of manpower and material resources in related research work. The development of China’s thermal power unit boiler steel has almost completely stopped in recent decades. At present, many critical materials in supercritical thermal power units, including some subcritical units, are totally dependent on imports. The development and application of new materials is the basis for making technological advances in boiler manufacturing. The new materials are implemented using material standards and technical conditions as a carrier. Although purchasing advanced materials from abroad is the most realistic way to develop supercritical thermal power technology at this stage, only