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日本各钢铁公司对棒材、线材、厚钢板、型钢等广泛领域,开展了非调质钢的研究,其意在省略用户再行热处理,从而实现了节能、高效化。一、棒材、线材非调质钢的现状汽车零件用非调质钢棒材、线材,按省略的调质处理前的工艺可分为表1所示的三种类型。 1。直接切削非调质钢直接切削非调质钢
Japanese steel companies have conducted research on non-quenched and tempered steels in a wide range of areas such as bars, wires, heavy plates and sections, with the intention of omitting heat treatment by users and saving energy and increasing efficiency. First, the bar, wire The status of non-quenched and tempered steel Non-quenched and tempered steel used in automotive parts bar, wire, quenched and tempered before omitted by the process can be divided into three types shown in Table 1. 1. Direct cutting non-quenched and tempered steel direct cutting non-quenched and tempered steel