高壓鍋爐管的發(fā)展及應用問題探討

Discussion on Development and Application of High Pressure Boiler Steel Pipe/tube

摘要: 結合電站鍋爐發(fā)展趨勢，介紹高參數(shù)高壓鍋爐管的開發(fā)方向，以及近期有可能在鍋爐上應用的新型耐熱鋼管材——G115、SAVE12AD、VM12-SHC、Sanicro25和SP2215；分析了工程實踐中需要相關行業(yè)共同關注的典型高壓鍋爐管質(zhì)量問題，包括大直徑高壓鍋爐管表面局部軟點和小直徑高壓鍋爐管內(nèi)壁線性缺陷、熱軋高壓鍋爐管異型、管端折疊缺陷，以及奧氏體耐熱鋼管內(nèi)壁氧化等。

Abstract: With consideration of the development trend of the thermal power plant-used boiler, described here in the paper are the R& D orientation of the high-parameter hi-pressure boiler pipe/tube, and the new type heatresistant steel grades which are probably used in near future for boiler pipes/tubes, i.e., G115、SAVE12AD、VM12-SHC、Sanicro25 and SP2215.Also analyzed are the typical problems concerning quality of the hi-pressure boiler pipe/tube to which all the related industries need to pay close attention in their engineering practices, including the local soft area of the large-sized hi-pressure boiler pipe/tube and the inner surface linear defects of the small-sized hi-pressure boiler pipe/tube, defective deformation and end-folding of the hot-rolled boiler pipe/tube as well as the inner surface oxidation of the austenitic heat-resistant steel pipe/tube, etc.