(東北大學(xué) 軋制技術(shù)及連軋自動化國家重點實驗室，
沈陽 110004)
摘 要: 利用潔凈普碳鋼的化學(xué)成分， 通過控制軋制與軋后冷卻工藝制度， 可以得到內(nèi)部組織均勻、 細(xì)小的新一代鋼材——超級鋼。 其成本低廉、 性能優(yōu)異， 將成為普碳鋼的換代產(chǎn)品。按照超級鋼開發(fā)的思路， 已經(jīng)把與Q235成分相同的普碳鋼的屈服強(qiáng)度提高到400~500 MPa， 產(chǎn)品應(yīng)用于汽車、建筑等行業(yè)， 取得了用戶降低成本、 生產(chǎn)廠多獲效益的“雙贏”效果。 介紹了目前國內(nèi)外超級鋼研制、 生產(chǎn)和應(yīng)用的現(xiàn)狀， 探討了超級鋼生產(chǎn)中遇到的幾個技術(shù)問題。
關(guān)鍵字: 超級鋼； 晶粒細(xì)化； 屈服強(qiáng)度； 換代產(chǎn)品
DU Lin-xiu, WANG Guo-dong
（State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110004, China）
Abstract:Using the same chemical compositions as those of the cleanly plain carbon steel, by means of optimizing the parameters in rolling and cooling, the super steel which has fine grain size was produced. It will become the new generation steel product because of its advantages of low cost and good properties. Following this idea, the super steel with yielding strength of 400～500 MPa has been put into mass production, and the strip coils have been used to press as the auto beams. The research and development, production and application in industry of super steel in China and outside were described. Some problems in the production of super steel were discussed.
Key words: super steel; fine grain size; yield strength; new product
