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板坯加热时间大多采用А.Ю.泰茨的公式τ=(7.5+0.05S)S。这个公式的条件是: ①适用于软钢,即含碳量低于0.25％的钢。②适用于三段式连续加热炉。③炉尾温度为800～850℃。Н.Ю.泰茨并认为只是坯料厚度影响加热时间,而长度或坯料长宽比并不影响加热时间。此式公认比较适用,不仅因其简易,同时公式中的基数(7.5+0.05 S)是比较大的值,根据这个基数计算的加热时间完全能满足轧制要求。但实际上因具体轧机所使用的坯料厚度有个比较窄小
Slab heating time mostly used А.Ю.Titz’s formula τ = (7.5 + 0.05S) S. The conditions of this formula are: ① for mild steel, that is, less than 0.25% carbon steel. ② for three-stage continuous heating furnace. ③ furnace tail temperature of 800 ~ 850 ℃. Tützzszczak believes only the blank thickness affects the heating time, while the length or blank aspect ratio does not affect the heating time. This type of recognition is more applicable, not only because of its simplicity, but also in the formula (7.5 + 0.05 S) is a relatively large value, based on which the heating time can fully meet the rolling requirements. However, in fact, due to the thickness of the blank used by a specific mill has a relatively narrow