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本文叙述了焊接长钢轨全长淬火后的性能及使用效果。焊接长钢轨经全长淬火后,其强韧性、抗磨耗、抗剥离、抗波浪磨耗及耐疲劳性能等都有显著提高,其使用寿命至少可延长1倍以上。焊接长钢轨焊接后焊缝的正火处理以及淬火轨焊接后接头的欠速淬火,可提高焊缝的综合性能,保证焊缝周围硬度与母材硬度的一致,避免接头在使脂过程中产生下陷,从而可延长焊接长钢轨的使用寿命。
This article describes the performance of the welded long rail full-length quench and the use of results. After the long rail has been quenched, the toughness, wear resistance, anti-stripping, anti-wave abrasion and fatigue resistance of the long rail have been significantly improved. The service life of the long rail can be lengthened by at least 1 time. Weld long rail welding after the normalizing of the weld and the quenching rail after the joint of the quenching speed, can improve the overall performance of the weld to ensure that the weld hardness and the hardness of the same base material to avoid the joints in the fat during the process Sag, which can extend the long service life of welded rails.