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首頁 > 鋼管百科 > 304不銹鋼無縫管有幾種軋制方法?

304不銹鋼無縫管有幾種軋制方法?

日期:2020-03-05

軋制方法分為304不銹鋼無縫管的熱軋,熱擠壓和冷拔(軋制)。根據304不銹鋼無縫管的金相組織,可分為半鐵素體和半馬氏體304不銹鋼無縫管,馬氏體304不銹鋼無縫管,奧氏體304不銹鋼無縫管,奧氏體-鐵素體304不銹鋼無縫鋼管。 

304不銹鋼無縫管有幾種軋制方法?

1,熱軋(無縫鋼管):圓管坯 → 加熱 → 穿孔 → 三輥斜軋,連續軋制或擠壓 → 剝離 → 上漿(或還原) → 冷卻 → 矯直 → 液壓試驗(或探傷) → 標記 

2,冷拔(軋制)無縫鋼管的軋制方法比熱軋(擠制無縫鋼管)的軋制方法復雜。他們的生產過程的前三個步驟基本相同。區別從第四步開始。空管排空后,必須將其啟動并退火。退火后,使用特殊的酸性液體進行酸洗。 

酸洗后,上油。然后進行多次冷拔(冷軋),然后進行落料和特殊熱處理。熱處理后,將其拉直。 

矯直后,將鋼管從傳送帶發送到金屬探傷儀(或液壓測試)以進行內部探傷。將檢測出鋼管內部的裂紋和氣泡等問題。 

對鋼管進行質量檢驗后,噴漆時應帶編號,規格,生產批號等。 

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