Д號(hào)鋼錠穿孔工藝研究
INVESTIGATION OF Д STEEL INGOT PIERCING PROCESS
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摘要: 分析了在周期式軋管機(jī)組上用580/565mm的Д號(hào)鋼鋼錠穿制φ337mm×10~12mm套管所用φ570mm×90mm毛管時(shí),毛管尾端產(chǎn)生的"三角帽"缺陷原因。通過對(duì)鋼的碳含量、鋼錠加熱時(shí)間、穿孔結(jié)束溫度和鋼錠高度的綜合研究,找出了減少毛管尾端"三角帽"缺陷的工藝措施。Abstract: The paper analyses the causes of triangular end occurrence when piercing 580/565mm steel ingot into φ570mm×90mm shell for φ337mm×10~12mm casing on pilger mill. The measures to decrease triangular ends of pierced shell are found through the comprehensive investigation on C content in steel, ingot heating time and shell temperature at outletof piercing as well as ingot height.
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