金融界2025年7月21日消息,國(guó)家知識(shí)產(chǎn)權(quán)局信息顯示,本鋼板材股份有限公司申請(qǐng)一項(xiàng)名為“一種熱軋電鍍鋅汽車板的低溫生產(chǎn)方法”的專利,公開號(hào)CN120325683A,申請(qǐng)日期為2025年06月。
專利摘要顯示,本發(fā)明屬于熱軋電鍍鋅汽車板生產(chǎn)技術(shù)領(lǐng)域,尤其涉及一種熱軋電鍍鋅汽車板的低溫生產(chǎn)方法,包括:1)軋制周期在6~30km;集中排產(chǎn)出爐溫度≤1200℃的電鍍鋅基板;F1~F4工作輥使用高速鋼軋輥;2)加熱溫度按目標(biāo)加熱溫度的下限控制;板坯出爐溫度控制在1160~1220℃;二加熱段時(shí)間+均熱段時(shí)間=60~115min;總在爐時(shí)間≤210min;3)荒軋及精軋高壓水正常投入,荒除鱗投入雙排高壓水,荒軋采用3+3軋制模式;4)層冷及卷。壕埥K軋溫度控制在910±15℃,卷取溫度控制在635±15℃。優(yōu)點(diǎn)是:工藝簡(jiǎn)單,確保產(chǎn)品質(zhì)量,絲狀斑跡缺陷率≤1%,滿足高級(jí)別汽車外板生產(chǎn)要求。
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