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    30Mn鋼調(diào)質(zhì)P110鋼級(jí)油管熱處理工藝研究

    Study on Heat Treatment Process for Quenched-tempered 30Mn P110 Oil Tubing

    • 摘要: 根據(jù)30Mn鋼的CCT曲線確定出Ac1、Ac3和Ms溫度，在27MnCr調(diào)質(zhì)P110鋼級(jí)產(chǎn)品熱處理工藝基礎(chǔ)上，通過分析30Mn鋼與27Mn Cr鋼的合金成分、管徑規(guī)格對(duì)熱處理工藝性能的影響，從淬火溫度、回火溫度、保溫時(shí)間、冷卻速度等方面采用對(duì)比分析法得出30Mn鋼調(diào)質(zhì)P110鋼級(jí)油管的工業(yè)化熱處理生產(chǎn)工藝：淬火溫度925℃、步進(jìn)周期32 s，回火溫度530℃、步進(jìn)周期32 s，外淋水量1 300 m3/h、外淋時(shí)間12 s，內(nèi)噴水量350 m3/h、內(nèi)噴時(shí)間11 s。

       

      Abstract: Based on Ac1, Ac3and Mstemperatures as determined with the CCT curve of the 30Mn steel, and the heat treatment process for the quenched-tempered 27MnCr P110 pipes, the effects by the alloy elements of the 30Mn steel and the 27MnCr steel as well as the steel pipe sizes on performance of the heat treatment process are analyzed. Furthermore the comparative analysis method is used to set up the industrialized heat treatment process for the said P110 oiltubing, involving such aspects as quenching temperature, tempering temperature, holding time and cooling speed.The process parameters include quenching temperature:925℃, and walking beam cycle:32 s;tempering temperature:530℃and walking beam cycle:32 s;external spray water volume:1 300 m3/h and spraying time:12 s;and internal spray water volume:350 m3/h, and internal water spraying time:11 s.

       

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