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個人中心收藏查看我的收藏0有用+10碳鋼無縫鋼管播報討論上傳視頻一種具有的長條鋼材本詞條由“科普中國”科學百科詞條編寫與應用工作項目 審核 。碳鋼無縫鋼管是一種具有的長條鋼材。鋼管具有中空截面,大量用作輸送流體的管道,如輸送石油、天然氣、煤氣、水及某些固體物料的管道等。鋼管與圓鋼等實心鋼材相比,在抗彎抗扭強度相同的同時,重量較輕,是一種經濟截面鋼材,廣泛用于制造結構件和機械零件,如石油鉆桿、汽車傳動軸、自行車架以及建筑施工中用的鋼腳手架等。中文名碳鋼無縫鋼管
外文名Carbon steel seamless steel pipe
作    用輸送流體
特    點中空截面、周邊無接縫
種    類10#、20#、45#無縫鋼管
提    示根據環境和用途選

目錄
1簡介2材質因素3標準
簡介
播報編輯碳鋼無縫鋼管制造環形零件,可提高材料利用率,簡化制造工序,節約材料和加工工 時,如滾動軸承套圈、千斤頂套等,當前已廣泛用鋼管來制造。鋼管還是各種常規武器不可缺少的材料,槍管、 炮筒等都要鋼管來制造。鋼管按橫截面積形狀的不同可分為圓管和異型管。由于在周長相等的條件下,圓面 積最大,用圓形管可以輸送更多的流體。此外,圓環截面在承受內部或外部徑向壓力時,受力較均勻 ,因此,絕大多數鋼管是圓管。用鋼管制造環形零件,可提高材料利用率,簡化制造工序,節約材料和加工工時,如滾動軸承套圈、千斤頂套等,當前已廣泛用鋼管來制造。分為10#無縫鋼管、20#無縫鋼管、45#無縫鋼管等。
材質因素
播報編輯(1)結構的重要性 重型工業建筑結構、大跨度結構、高層或超高層的民用建筑結構或構筑物等重要結構,應考慮選用質量好的無縫鋼管,對一般工業與民用建筑結構,可按工作性質分別選用普通質量的無縫鋼管。(2)荷載情況 直接承受動力荷載的結構和強烈地震區的結構,應選用綜合性能好的無縫鋼管;一般承受靜力荷載的結構則可選用價格較低的無縫鋼管。(3)連接方法 焊接過程會產生焊接變形、焊接應力以及其他焊接缺陷,存在導致結構產生裂縫或脆性斷裂的危險。因此,焊接結構對材質的要求應嚴格一些。(4)結構所處的溫度和環境,無縫鋼管處于低溫時容易冷脆,因此在低溫條件下工作的結構,尤其是焊接結構,應選用具有良好抗低溫脆斷性能的鎮靜鋼。此外,露天結構的太原無縫鋼管容易產生時效,有害介質作用的無縫鋼管容易腐蝕、疲勞和斷裂,也應加以區別地選擇不同材質。(5)太無縫鋼管厚度,薄無縫鋼管輥軋次數多,軋制的壓縮比大,厚度大的無縫鋼管壓縮比小,所以厚度大的精密鋼管不但強度較小,而且塑性、沖擊韌性和焊接性能也較差。因此,厚度大的焊接結構應采用材質較好的無縫鋼管。
標準
播報編輯碳素鋼無縫鋼管有以下幾種標準:GB8163《流體輸送用無縫鋼管》、GB6479《化肥設備用高壓無縫鋼管》、GB9948《石油裂化用無縫鋼管》、GB3087《低中壓鍋爐用無縫鋼管》、GB5310《高壓鍋爐用無縫鋼管》。新手上路成長任務編輯入門編輯規則本人編輯我有疑問內容質疑在線客服官方貼吧意見反饋投訴建議舉報不良信息未通過詞條申訴投訴侵權信息封禁查詢與解封?2024?Baidu?使用百度前必讀?|?百科協議?|?隱私政策?|?百度百科合作平臺?|?京ICP證030173號?京公網安備11000002000001號window.PAGE_DATA= 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