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不銹鋼壓力容器封頭研究

信息編號:63904923 發(fā)布時間:2025/8/4 9:25:55
不銹鋼壓力容器封頭作為壓力容器的關(guān)鍵承壓部件,其性能直接關(guān)系到設(shè)備的安全運(yùn)行。在化工、能源等領(lǐng)域,封頭需承受高溫、高壓及腐蝕性介質(zhì)的雙重考驗(yàn),因此材料選擇與成形工藝尤為重要。?
目前常用的不銹鋼材料包括 304、316L 等,其中 316L 因含鉬元素,耐晶間腐蝕和點(diǎn)蝕能力更優(yōu),適用于嚴(yán)苛環(huán)境。封頭成形多采用沖壓、旋壓工藝,沖壓效率高但易產(chǎn)生應(yīng)力集中,旋壓則能減少材料損傷,更適合大型封頭制造。?
研究發(fā)現(xiàn),封頭在成形過程中會出現(xiàn)壁厚減薄、回彈等問題,需通過有限元模擬優(yōu)化工藝參數(shù)。同時,焊接后的熱處理可降低殘余應(yīng)力,提升整體強(qiáng)度。未來,輕量化、高強(qiáng)度的雙相不銹鋼封頭或?qū)⒊蔀檠芯繜狳c(diǎn),推動壓力容器向更安全、高效的方向發(fā)展。
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