發(fā)布時間：2018-01-18 08:01

  本文關(guān)鍵詞：超高強(qiáng)鋼熱成形淬火階段的工藝參數(shù)優(yōu)化　出處：《吉林大學(xué)學(xué)報(bào)(工學(xué)版)》2016年03期 　論文類型：期刊論文

  更多相關(guān)文章： 材料合成與加工工藝 MnB 熱成形 淬火

【摘要】：以汽車用超高強(qiáng)鋼22MnB5為研究對象,開發(fā)了一種壓力可調(diào)的熱成形淬火裝置,采用二步染色金相分析技術(shù)及材料性能試驗(yàn)等對熱成形淬火階段工藝參數(shù)進(jìn)行優(yōu)化。結(jié)果表明:對于2mm厚22MnB5,當(dāng)以室溫下的水為冷卻介質(zhì)時,熱成形淬火階段板料發(fā)生完全馬氏體轉(zhuǎn)變的臨界壓力為0.3 MPa;實(shí)際生產(chǎn)中,2mm厚22MnB5熱成形淬火階段的最佳壓力為1.0 MPa以上;板料從800℃開始冷卻時,最佳的保壓時間為8s。
[Abstract]:Taking 22MnB5 super high strength steel for automobile as the research object, a kind of hot forming quenching device with adjustable pressure was developed. Two step dyeing metallographic analysis technique and material performance test were used to optimize the process parameters of hot forming quenching stage. The results showed that for 2mm thickness 22MnB5, water at room temperature was used as the cooling medium. The critical pressure of complete martensite transformation in hot forming quenching stage is 0.3 MPA. The optimum pressure of 2mm thickness 22MnB5 hot forming quenching stage is more than 1.0 MPa. When the sheet metal is cooled at 800 鈩，

本文編號：1440111