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这是法国焊接研究所和法国阿斯通-大西洋公司所做的有关试验研究和生产应用方面的报告。为了制造厚壁大型压力容器,法国已采用经济的电渣焊。通常电渣焊后要进行正火,以改善焊缝及热影响区的组织。但往往韧性达不到0℃的恰贝V型缺口冲击值=5.1kgf-M/cm~2的要求。鉴此,研究并应用了二相区热处理。焊接研究所用E26(低碳钢)、E36(C-Mn钢)和15MDV4-05(Mn-Mo-V钢)摸索过相变点间热处理的最佳条件。发现E26钢采用二相区间热处理的效果不大,而对于E36钢、15MDV4-05钢效果则很明显。阿斯通-大西洋公司已把二相区热处理应用到压
This is the French Welding Institute and the French Astone - Atlantic company made on the pilot research and production applications report. In order to manufacture large-scale, large-scale pressure vessels, France has adopted economical electroslag welding. Usually after electroslag welding to be normalized to improve the weld and heat affected zone organization. But often less than 0 ° C toughness Chabei V-notch impact value = 5.1kgf-M / cm ~ 2 requirements. In view of this, the study and application of two-phase heat treatment. The Welding Research Institute explored the optimum conditions for the heat treatment between transformation points with E26 (mild steel), E36 (C-Mn steel) and 15MDV4-05 (Mn-Mo-V steel) It is found that E26 steel has little effect on heat treatment with two-phase interval, while for E36 steel, the effect of 15MDV4-05 steel is obvious. Asstone-Atlantic has applied two-phase heat treatment to the pressure