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实行ТУ-32-ЦП-1-84《宽轨铁路再用钢轨》新的技术条件以取代ТУ-32-ЦП-1-76。在新的技术条件中考虑了近年来的一些变化,诸如淬火轨和无缝线路铺设长度增加,以及轨头虽严重磨损,但由于非金属夹杂的条状聚积引起内部缺陷产生的裂纹很小,重型钢轨的使用寿命仍有一定储备。 线路大修时,主要是拆除P50型及较重型钢轨,其中包括约45％的P65型淬火轨。按照旧的技术条件只有其总数的10％可以列入Ⅰ类
The new technical condition of ТУ-32-ЦП-1-84 “wide gauge railway re-use rail” was implemented instead of ТУ-32-ЦП-1-76. In the new technical conditions, some changes in recent years have been taken into account, such as the increase in the length of the hardened rail and the seamless rail laying, and the serious wear of the rail head, but the crack caused by internal defects due to non-metallic inclusion strip accumulation is small , Heavy rail service life is still some reserves. Line overhaul, mainly to remove the P50 and heavier rails, including about 45% of the P65 quenching track. According to the old technical conditions, only 10% of the total can be classified as class I