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前言废钢是钢铁生产的重要原料,废钢主要包括一些报废的机器、设备、器械、结构件、构筑物以及生产中产生的报废钢锭、钢坯、切头切尾、钢铸件、钢轧辊、钢轨、车轴等。废钢含碳量一般要求小于2.0%,硫、磷含量不大于0.05%。由于产生的情况不同,废钢形状各异,但与产生此种废钢的成品钢材基本相同,大多数废钢的性能相似。不过,有时也受到时效性、疲劳性等因素的影响,使得废钢性能有些差异。废钢的划分种类繁多,划分方法也不尽相同。通常
Preface Scrap is an important raw material for steel production. Scrap mainly includes scrapped machinery, equipment, instruments, structural parts and structures as well as scrap steel slabs, billets, cut ends, steel castings, steel rollers, rails, axles etc. . Scrap carbon content is generally less than 2.0%, sulfur, phosphorus content of not more than 0.05%. Because of the different conditions that occur, scrap shapes vary, but are essentially the same as the finished steel that produces the scrap, with most scrap similar in performance. However, sometimes also affected by timeliness, fatigue and other factors, making the scrap somewhat different performance. Scrap steel is divided in a wide range of ways, divided into different ways. usually