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冷軋與熱軋無縫鋼管的區別
作者:山東無縫鋼管廠 來源://dghuatong2009.cn 日期:2019/4/3 11:48:46

現在城市所需要的無縫鋼管,可以先統稱為熱軋無縫鋼管和冷軋無縫鋼管。這兩種鋼材,在制作上的工藝是不一樣的,相比熱軋無縫鋼管,冷軋無縫鋼管的工藝制作步驟相對來說比較復雜些。不僅要進行三連軋,還有進行裂紋測驗,在進行切割,再進入到最后的退貨流程中。冷軋無縫管在退(tui)火的時(shi)候,酸(suan)(suan)洗這(zhe)個步驟是(shi)難免(mian)的。酸(suan)(suan)洗過程中,工作人員(yuan)需要穿戴好安(an)全(quan)用具。同時(shi)也要細(xi)看(kan)鋼管(guan)表面(mian)有沒(mei)有出現(xian)大量的氣(qi)泡現(xian)象,比較多的話,鋼管(guan)的質量就達不到(dao)相(xiang)關的要求。

相(xiang)比(bi)冷(leng)(leng)軋(ya)無(wu)(wu)(wu)縫(feng)(feng)(feng)鋼(gang)管(guan)(guan)(guan)的繁瑣步驟,熱(re)軋(ya)無(wu)(wu)(wu)縫(feng)(feng)(feng)鋼(gang)管(guan)(guan)(guan)就顯得(de)見多(duo)的多(duo)了。就只(zhi)需要(yao)在(zai)熱(re)軋(ya)狀態下(xia),經(jing)過(guo)熱(re)處(chu)理(li)后即可。但是(shi)(shi)進行交貨強(qiang)度(du)比(bi)15號(hao)鋼(gang)稍高(gao),很少淬(cui)(cui)火,無(wu)(wu)(wu)回(hui)火脆性(xing)。冷(leng)(leng)變形(xing)塑性(xing)高(gao)、一(yi)般(ban)(ban)供(gong)彎曲、壓(ya)(ya)延、彎邊(bian)和(he)錘(chui)拱等加工,電(dian)弧(hu)焊和(he)接觸焊的焊接性(xing)能好(hao),氣焊時厚度(du)小,外形(xing)要(yao)求嚴格或(huo)形(xing)狀復(fu)雜的制件上易發生裂紋(wen)。切削(xue)加工性(xing)冷(leng)(leng)拔或(huo)正火狀態較退火狀態好(hao)、一(yi)般(ban)(ban)用(yong)(yong)(yong)(yong)于制造(zao)受力不大而韌性(xing)要(yao)求高(gao)的。常年保(bao)持(chi)庫(ku)(ku)存1萬(wan)噸左右,年銷量(liang)售額(e)過(guo)億(yi)元。所售產品均執行國家標準(zhun),適用(yong)(yong)(yong)(yong)于工程、煤礦、紡織(zhi)的前提,是(shi)(shi)需要(yao)經(jing)過(guo)相(xiang)關工作人(ren)員的挑選,還有(you)經(jing)過(guo)嚴謹(jin)的實驗(yan)。最終各(ge)項測驗(yan)合(he)(he)格以后,才可以在(zai)表面貼上相(xiang)關的商標,將其排(pai)列好(hao)置(zhi)16Mn無(wu)(wu)(wu)縫(feng)(feng)(feng)鋼(gang)管(guan)(guan)(guan)用(yong)(yong)(yong)(yong)途很廣泛。一(yi)般(ban)(ban)用(yong)(yong)(yong)(yong)途的無(wu)(wu)(wu)縫(feng)(feng)(feng)鋼(gang)管(guan)(guan)(guan)由普通碳素結構鋼(gang)、低合(he)(he)金(jin)(jin)結構鋼(gang)或(huo)合(he)(he)金(jin)(jin)結構鋼(gang)軋(ya)制,產量(liang)最多(duo),主要(yao)用(yong)(yong)(yong)(yong)作輸送(song)流體(ti)的管(guan)(guan)(guan)道或(huo)結構零件,此(ci)類鋼(gang)制造(zao)的無(wu)(wu)(wu)縫(feng)(feng)(feng)鋼(gang)管(guan)(guan)(guan)被廣泛用(yong)(yong)(yong)(yong)于液壓(ya)(ya)支柱(zhu)、高(gao)壓(ya)(ya)氣瓶、高(gao)壓(ya)(ya)鍋爐、化(hua)肥設備、石油裂化(hua)、汽車半(ban)軸套、柴油機、液壓(ya)(ya)管(guan)(guan)(guan)件等用(yong)(yong)(yong)(yong)管(guan)(guan)(guan)表面淬(cui)(cui)火或(huo)高(gao)頻淬(cui)(cui)火等處(chu)理(li)。因此(ci),根據化(hua)學成分(主要(yao)是(shi)(shi)含碳量(liang))、熱(re)處(chu)理(li)工藝和(he)用(yong)(yong)(yong)(yong)途的不同(tong)。放在(zai)庫(ku)(ku)房(fang)中,準(zhun)備交貨。這些(xie)只(zhi)是(shi)(shi)這兩(liang)種無(wu)(wu)(wu)縫(feng)(feng)(feng)鋼(gang)管(guan)(guan)(guan)在(zai)工藝制作上的不同(tong)。

在外觀上,這兩種鋼管也是有著差別。首先就長短來說,冷軋無縫鋼管要稍短一些。就厚壁上來說,冷軋無縫鋼管壁厚程度要稍公司專業經營各種規格型號無縫管,無縫鋼管,厚壁鋼管,無縫鋼管廠家等,產品嚴格執(zhi)行國(guo)家(jia)標準(zhun),全部產自本廠(chang)及國(guo)有(you)(you)大型鋼(gang)(gang)(gang)(gang)廠(chang),如:馬鋼(gang)(gang)(gang)(gang)、萊鋼(gang)(gang)(gang)(gang)、包鋼(gang)(gang)(gang)(gang)、重(zhong)鋼(gang)(gang)(gang)(gang)。作為魯西最大的(de)(de)(de)(de)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)生(sheng)產加(jia)工貿易企業,長備庫(ku)存1萬噸以(yi)上(shang)(shang),庫(ku)存量(liang)和銷售量(liang)在全國(guo)同(tong)類企業中均為首(shou)位。長期備有(you)(you)各種規(gui)格的(de)(de)(de)(de)無(wu)縫鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)、高壓鍋爐管(guan)(guan)(guan)(guan)、流體管(guan)(guan)(guan)(guan)、結構管(guan)(guan)(guan)(guan)、化肥專用管(guan)(guan)(guan)(guan)以(yi)及德美日意進口的(de)(de)(de)(de)合金鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)等 微的(de)(de)(de)(de)小一(yi)些。但是就厚壁的(de)(de)(de)(de)光(guang)潔度(du)來說,要(yao)比熱軋(ya)無(wu)縫鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)更加(jia)明(ming)(ming)亮些。同(tong)時在鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)的(de)(de)(de)(de)表面(mian)還有(you)(you)切口上(shang)(shang),沒有(you)(you)過多明(ming)(ming)顯的(de)(de)(de)(de)粗糙現(xian)象,口徑處也(ye)沒有(you)(you)太多的(de)(de)(de)(de)毛刺(ci)。盡管(guan)(guan)(guan)(guan)有(you)(you)著區(qu)別,但是在使用上(shang)(shang),都(dou)是以(yi)服(fu)務社(she)會便利(li)人們(men)生(sheng)活(huo)為主。

 

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