厚壁焊管都有哪些材質規格

　　厚壁焊管是除了圓管以外的其他截面形狀的API無縫鋼管的總稱。按鋼管截面形狀尺寸的不同又可分為等壁厚厚壁焊管(代號為D)、不等壁厚厚壁焊管(代(dai)號(hao)為(wei)BD)、變直(zhi)徑厚壁焊(han)(han)管(guan)(代(dai)號(hao)為(wei)BJ)。厚壁焊(han)(han)管(guan)廣泛用于各種(zhong)結構件、工具和(he)機械零部件。和(he)圓管(guan)相(xiang)比，異型管(guan)一般都有較大(da)的(de)慣性矩和(he)截面模數，有較大(da)的(de)抗彎抗扭能(neng)力，可以大(da)大(da)減輕結構重量(liang)，節約鋼材。

　　厚(hou)壁焊(han)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)生產(chan)的(de)生產(chan)制造工藝可分為冷(leng)(leng)拔(ba)、冷(leng)(leng)軋和熱軋三(san)種基(ji)本方式，鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)材質(zhi)為10#、20#、35#、45#稱(cheng)為 普通鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)，16Mn介(jie)于普通鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)和合(he)金鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)之間(jian)稱(cheng)為低合(he)金鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)，鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)材質(zhi)為27SiMn、12Cr1MoV、10CrMo910、15CrMo、35CrMo以及不(bu)銹鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)統稱(cheng)為合(he)金鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)。按照用(yong)(yong)途分為結構(gou)用(yong)(yong)無(wu)縫(feng)(feng)(feng)(feng)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan);輸送用(yong)(yong)無(wu)縫(feng)(feng)(feng)(feng)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan);鍋爐(lu)用(yong)(yong)無(wu)縫(feng)(feng)(feng)(feng)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan);鍋爐(lu)用(yong)(yong)高壓無(wu)縫(feng)(feng)(feng)(feng)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan);化(hua)(hua)肥設備用(yong)(yong)高壓無(wu)縫(feng)(feng)(feng)(feng)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan);地(di)質(zhi)磚探用(yong)(yong)無(wu)縫(feng)(feng)(feng)(feng)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan);石油(you)磚探用(yong)(yong)無(wu)縫(feng)(feng)(feng)(feng)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan);石油(you)裂(lie)化(hua)(hua)用(yong)(yong)無(wu)縫(feng)(feng)(feng)(feng)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan);船舶用(yong)(yong)無(wu)縫(feng)(feng)(feng)(feng)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan);冷(leng)(leng)拔(ba)冷(leng)(leng)軋精密無(wu)縫(feng)(feng)(feng)(feng)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan);各種合(he)金管(guan)(guan)(guan)(guan)(guan)(guan)(guan)。

　　直縫焊(han)管，用(yong)熱軋(ya)或(huo)冷軋(ya)鋼(gang)(gang)(gang)板或(huo)鋼(gang)(gang)(gang)帶卷焊(han)制成的鋼(gang)(gang)(gang)管在焊(han)接設備上進行直縫焊(han)接得(de)到的管子都叫(jiao)直縫焊(han)管。(由于鋼(gang)(gang)(gang)管的焊(han)接處成一條直線故而得(de)名)。

　　其中(zhong)按照用途(tu)不同(tong)，又不同(tong)的后道(dao)生產工序(xu)，.(大致可分為(wei)腳手(shou)架(jia)管(guan)(guan)(guan)(guan)，流體管(guan)(guan)(guan)(guan)，電線(xian)套管(guan)(guan)(guan)(guan)，支架(jia)管(guan)(guan)(guan)(guan)，護欄管(guan)(guan)(guan)(guan)等幾(ji)種)。直(zhi)縫(feng)焊(han)(han)管(guan)(guan)(guan)(guan)標(biao)準 GB/T3091-2008而低壓流體焊(han)(han)管(guan)(guan)(guan)(guan)是直(zhi)縫(feng)焊(han)(han)管(guan)(guan)(guan)(guan)的一(yi)(yi)種，一(yi)(yi)般用水，煤氣的輸送， 在焊(han)(han)接完畢后比(bi)普(pu)通焊(han)(han)管(guan)(guan)(guan)(guan)多加以一(yi)(yi)道(dao)水壓測試，當前(qian)低壓流體管(guan)(guan)(guan)(guan)比(bi)普(pu)通直(zhi)縫(feng)焊(han)(han)管(guan)(guan)(guan)(guan)價格高出一(yi)(yi)點(按當前(qian)的市場價來(lai)說，大概高出80元(yuan)左右(you)) 大口(kou)徑直(zhi)縫(feng)焊(han)(han)管(guan)(guan)(guan)(guan)主要生產流程說明(ming):

　　1. 板(ban)探:用來制造大(da)口徑(jing)埋弧焊直縫鋼(gang)管的(de)鋼(gang)板(ban)進入(ru)生產線后，首先(xian)進行全板(ban)超聲(sheng)波檢(jian)驗;

　　2. 銑邊(bian):通過銑邊(bian)機對鋼(gang)板兩邊(bian)緣進行雙面銑削，使之達到要求的(de)板寬、板邊(bian)平行度和坡口形狀;

　　3. 預(yu)彎邊:利用預(yu)彎機(ji)進行板邊預(yu)彎，使(shi)板邊具有(you)符合要(yao)求(qiu)的曲率;

　　4. 成型:在JCO成型機上(shang)首先將預彎(wan)后(hou)的(de)鋼板的(de)一(yi)半經(jing)過多次步進沖壓，壓成"J"形(xing)(xing)，再將鋼板的(de)另(ling)一(yi)半同樣彎(wan)曲，壓成"C"形(xing)(xing)，最后(hou)形(xing)(xing)成開口的(de)"O"形(xing)(xing)

　　5. 預焊:使成型后的直縫(feng)焊鋼(gang)管合縫(feng)并采用(yong)氣體保護焊(MAG)進行連續焊接;

　　6. 內焊:采(cai)用縱列多絲埋弧焊(最多可為四絲)在直縫鋼管內側進行焊接(jie);

　　7. 外(wai)焊(han):采用縱列多絲(si)埋弧焊(han)在直縫埋弧焊(han)鋼管外(wai)側進行(xing)焊(han)接;

　　8. 超聲(sheng)波(bo)檢(jian)驗Ⅰ:對(dui)直(zhi)縫焊(han)鋼管內外(wai)焊(han)縫及(ji)焊(han)縫兩側母材進行100%的檢(jian)查;

　　9. X射線檢(jian)查Ⅰ:對內外焊縫進行100%的X射線工業(ye)電視檢(jian)查，采用圖(tu)象處理系統以保證探傷的靈敏(min)度;

　　10. 擴徑:對埋弧焊(han)直縫鋼(gang)管(guan)全長進行擴徑以提高鋼(gang)管(guan)的尺寸精度(du)，并(bing)改善鋼(gang)管(guan)內應(ying)力(li)的分布(bu)狀態;

　　11. 水壓試(shi)驗:在水壓試(shi)驗機(ji)上對(dui)擴(kuo)徑(jing)后的鋼管進行(xing)逐根檢驗以(yi)保證鋼管達到標準要求(qiu)的試(shi)驗壓力，該機(ji)具有自動記錄和儲存功能;

　　12. 倒棱:將(jiang)檢(jian)驗(yan)合格后的(de)鋼(gang)管進(jin)行管端加(jia)工(gong)，達到要求的(de)管端坡口尺(chi)寸;

　　13. 超(chao)聲波(bo)檢驗(yan)(yan)Ⅱ:再次逐(zhu)根進行(xing)超(chao)聲波(bo)檢驗(yan)(yan)以檢查直縫焊(han)鋼管在擴(kuo)徑、水壓(ya)后可能產生的缺陷(xian);

　　14. X射線檢查Ⅱ:對(dui)擴(kuo)徑和(he)水壓試驗后的鋼(gang)管進(jin)行(xing)X射線工業(ye)電視檢查和(he)管端焊縫拍片;

　　15. 管(guan)端磁粉檢驗:進行此項檢查以發現管(guan)端缺陷;

　　16. 防腐和(he)(he)涂層(ceng):合(he)格后的鋼管根據用戶要(yao)求進行防腐和(he)(he)涂層(ceng)。

　　我們(men)公司專(zhuan)業從事(shi)大口徑直縫焊(han)管(guan)(guan),薄壁焊(han)管(guan)(guan),厚壁焊(han)管(guan)(guan),高頻焊(han)管(guan)(guan),焊(han)管(guan)(guan),直縫焊(han)管(guan)(guan)等(deng)鋼管(guan)(guan)的開發、制造、營銷為一體(ti)的鋼管(guan)(guan)廠家(jia)，我們(men)擁有完整、科學的質(zhi)量(liang)管(guan)(guan)理(li)體(ti)系，誠信、實(shi)力(li)和(he)產品質(zhi)量(liang)獲得業界的認(ren)可。歡迎(ying)各界朋友蒞臨參觀、指導和(he)業務洽(qia)談。