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平頂山p11合金鋼管品質保證
<平頂山>萬方金屬材料有限公司 wfjs

平頂山42crmo無(wu)縫(feng)(feng)鋼(gang)(gang)(gang)(gang)管(guan)(guan)的(de)用途(tu)：用于橋梁的(de)專(zhuan)用鋼(gang)(gang)(gang)(gang)種為(wei)(wei)(wei)(wei)(wei)“42crmo”，汽車大梁的(de)專(zhuan)用鋼(gang)(gang)(gang)(gang)種為(wei)(wei)(wei)(wei)(wei)“42crmo”，壓力(li)容器的(de)專(zhuan)用鋼(gang)(gang)(gang)(gang)種為(wei)(wei)(wei)(wei)(wei)“42crmo”。此(ci)(ci)類鋼(gang)(gang)(gang)(gang)是依靠(kao)調(diao)整(zheng)含(han)碳(tan)(tan)（c）量(liang)(liang)(liang)來改善(shan)鋼(gang)(gang)(gang)(gang)的(de)力(li)學性能，因(yin)此(ci)(ci)，根(gen)據含(han)碳(tan)(tan)量(liang)(liang)(liang)的(de)高(gao)低(di)，此(ci)(ci)類鋼(gang)(gang)(gang)(gang)又可分(fen)為(wei)(wei)(wei)(wei)(wei)：低(di)碳(tan)(tan)鋼(gang)(gang)(gang)(gang)--含(han)碳(tan)(tan)量(liang)(liang)(liang)一般(ban)(ban)(ban)小(xiao)于0.25%，如10、20鋼(gang)(gang)(gang)(gang)等(deng)(deng)(deng)；中(zhong)碳(tan)(tan)鋼(gang)(gang)(gang)(gang)--含(han)碳(tan)(tan)量(liang)(liang)(liang)一般(ban)(ban)(ban)在0.25～0.60%之間(jian)，如35、45鋼(gang)(gang)(gang)(gang)等(deng)(deng)(deng)；高(gao)碳(tan)(tan)鋼(gang)(gang)(gang)(gang)--含(han)碳(tan)(tan)量(liang)(liang)(liang)一般(ban)(ban)(ban)大于0.60%。此(ci)(ci)類鋼(gang)(gang)(gang)(gang)一般(ban)(ban)(ban)不用于制造鋼(gang)(gang)(gang)(gang)管(guan)(guan)。明顯(xian)的(de)回(hui)火脆性淬火時(shi)變(bian)形小(xiao)平頂山42crmo無(wu)縫(feng)(feng)鋼(gang)(gang)(gang)(gang)管(guan)(guan)廠(chang)調(diao)質處理后有(you)較(jiao)高(gao)的(de)疲勞極限和抗多次(ci)沖擊(ji)(ji)能力(li)低(di)溫(wen)沖擊(ji)(ji)韌度(du)良好高(gao)溫(wen)時(shi)有(you)高(gao)的(de)蠕變(bian)強(qiang)度(du)和持久(jiu)強(qiang)度(du)。42crmo無(wu)縫(feng)(feng)鋼(gang)(gang)(gang)(gang)管(guan)(guan)廠(chang)通(tong)常將調(diao)質后表面淬火作(zuo)為(wei)(wei)(wei)(wei)(wei)熱處理方案。42crmo無(wu)縫(feng)(feng)鋼(gang)(gang)(gang)(gang)管(guan)(guan)廠(chang)根(gen)據生產方法不同(tong)分(fen)為(wei)(wei)(wei)(wei)(wei)熱軋管(guan)(guan)、冷軋管(guan)(guan)、冷拔管(guan)(guan)等(deng)(deng)(deng)，均有(you)各(ge)自工藝規定(ding)。材質有(you)普通(tong)和優質碳(tan)(tan)素結(jie)(jie)構鋼(gang)(gang)(gang)(gang)（q215-a～q275-a和10～50號(hao)鋼(gang)(gang)(gang)(gang)）、低(di)合金(jin)(jin)鋼(gang)(gang)(gang)(gang)（09mnv、16mn等(deng)(deng)(deng)）、合金(jin)(jin)鋼(gang)(gang)(gang)(gang)、不銹耐酸(suan)鋼(gang)(gang)(gang)(gang)等(deng)(deng)(deng)。按用途(tu)分(fen)為(wei)(wei)(wei)(wei)(wei)一般(ban)(ban)(ban)用途(tu)的(de)（用于輸水、氣管(guan)(guan)道和結(jie)(jie)構件(jian)、機械零件(jian)）和專(zhuan)用的(de)（用于鍋爐(lu)、地(di)質勘探、軸(zhou)承、耐酸(suan)等(deng)(deng)(deng)）兩類。42crmo無(wu)縫(feng)(feng)鋼(gang)(gang)(gang)(gang)管(guan)(guan)的(de)化學成分(fen)(質量(liang)(liang)(liang)分(fen)數):ni≤0.030%、p≤0.030%、s≤0.030%42crmo無(wu)縫(feng)(feng)鋼(gang)(gang)(gang)(gang)管(guan)(guan)為(wei)(wei)(wei)(wei)(wei)鋼(gang)(gang)(gang)(gang)材中(zhong)的(de)一種材質。過去鋼(gang)(gang)(gang)(gang)材的(de)一種叫法。稱法為(wei)(wei)(wei)(wei)(wei)：q345b，與此(ci)(ci)相近的(de)材質為(wei)(wei)(wei)(wei)(wei)q345a，q345c，q345e，質量(liang)(liang)(liang)等(deng)(deng)(deng)級(ji)符號(hao)abcde分(fen)別表示(shi)不要求沖擊(ji)(ji)試(shi)驗沖擊(ji)(ji)試(shi)驗溫(wen)度(du)為(wei)(wei)(wei)(wei)(wei)+20度(du)0度(du)-20度(du)40度(du)abcd表示(shi)質量(liang)(liang)(liang)等(deng)(deng)(deng)級(ji)q235質量(liang)(liang)(liang)等(deng)(deng)(deng)級(ji)分(fen)為(wei)(wei)(wei)(wei)(wei)a、b、c、d四級(ji)，由a到d表示(shi)質量(liang)(liang)(liang)由低(di)到高(gao)。

無(wu)(wu)縫(feng)(feng)鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)的(de)(de)(de)生產(chan)(chan)(chan)過(guo)程(cheng)(cheng)；平頂(ding)山(shan)無(wu)(wu)縫(feng)(feng)鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)的(de)(de)(de)生產(chan)(chan)(chan)過(guo)程(cheng)(cheng)可分(fen)為(wei)冷(leng)(leng)(leng)拔和熱(re)軋(ya)兩種，冷(leng)(leng)(leng)軋(ya)無(wu)(wu)縫(feng)(feng)鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)的(de)(de)(de)生產(chan)(chan)(chan)過(guo)程(cheng)(cheng)一般(ban)(ban)比(bi)熱(re)軋(ya)更為(wei)復雜，管(guan)(guan)(guan)(guan)材(cai)毛坯(pi)應(ying)首先進(jin)行三輥連續(xu)軋(ya)制，擠(ji)壓(ya)后(hou)(hou)進(jin)行直(zhi)徑測試，如(ru)果表(biao)(biao)面(mian)(mian)(mian)不響應(ying)裂紋，管(guan)(guan)(guan)(guan)子應(ying)經過(guo)切割機，經過(guo)切割機切割成約1米長(chang)的(de)(de)(de)毛坯(pi)。進(jin)入退火(huo)過(guo)程(cheng)(cheng)，退火(huo)要用酸性液體(ti)酸洗，要注意酸洗時(shi)表(biao)(biao)面(mian)(mian)(mian)是否(fou)會產(chan)(chan)(chan)生大量(liang)氣(qi)泡(pao)。如(ru)果產(chan)(chan)(chan)生大量(liang)泡(pao)沫，就表(biao)(biao)明(ming)鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)的(de)(de)(de)質(zhi)量(liang)達不到相應(ying)的(de)(de)(de)標準。從(cong)外觀(guan)上(shang)看，冷(leng)(leng)(leng)軋(ya)無(wu)(wu)縫(feng)(feng)鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)應(ying)比(bi)熱(re)軋(ya)無(wu)(wu)縫(feng)(feng)鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)短，平頂(ding)山(shan)冷(leng)(leng)(leng)軋(ya)無(wu)(wu)縫(feng)(feng)鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)的(de)(de)(de)壁厚(hou)(hou)一般(ban)(ban)小于熱(re)軋(ya)無(wu)(wu)縫(feng)(feng)鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)，但(dan)表(biao)(biao)面(mian)(mian)(mian)比(bi)厚(hou)(hou)壁無(wu)(wu)縫(feng)(feng)鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)看起來更亮，表(biao)(biao)面(mian)(mian)(mian)不粗糙，口徑上(shang)沒(mei)有很多毛刺。熱(re)軋(ya)無(wu)(wu)縫(feng)(feng)鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)的(de)(de)(de)交貨狀(zhuang)態一般(ban)(ban)是熱(re)軋(ya)狀(zhuang)態經過(guo)熱(re)處(chu)理(li)后(hou)(hou)交貨。熱(re)軋(ya)無(wu)(wu)縫(feng)(feng)鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)經過(guo)質(zhi)量(liang)檢查(cha)后(hou)(hou)，要經過(guo)工(gong)作人員(yuan)嚴格的(de)(de)(de)手(shou)工(gong)選擇，質(zhi)量(liang)檢查(cha)后(hou)(hou)表(biao)(biao)面(mian)(mian)(mian)油漆(qi)后(hou)(hou)要進(jin)行多次冷(leng)(leng)(leng)拔試驗，熱(re)軋(ya)處(chu)理(li)后(hou)(hou)要進(jin)行穿孔試驗，穿孔過(guo)大時(shi)要進(jin)行矯(jiao)正。校正后(hou)(hou)，從(cong)輸(shu)送機裝置送到探傷機進(jin)行探傷儀(yi)試驗，后(hou)(hou)貼上(shang)標簽，編制規格后(hou)(hou)放入倉庫。

平頂山(shan)無(wu)(wu)縫(feng)(feng)(feng)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)根據(ju)(ju)生產方法的(de)不(bu)同可分為熱軋(ya)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)、冷軋(ya)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)、冷拉管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)和擠(ji)壓管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)。按形(xing)狀分類，有(you)圓管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)和異形(xing)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)。除了方管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)和矩形(xing)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)，還有(you)橢圓管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)、半圓管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)、三角(jiao)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)、六角(jiao)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)、凸(tu)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)、梅(mei)花管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)等(deng)。根據(ju)(ju)材質(zhi)不(bu)同，可分為普(pu)通碳素(su)結(jie)構(gou)(gou)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)、低合(he)金結(jie)構(gou)(gou)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)、優質(zhi)碳素(su)結(jie)構(gou)(gou)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)、合(he)金結(jie)構(gou)(gou)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)、不(bu)銹鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)等(deng)。外觀(guan)不(bu)同:焊接鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)內壁有(you)焊接筋，而無(wu)(wu)縫(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)沒有(you)。不(bu)同壓力:無(wu)(wu)縫(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)壓力高于(yu)(yu)無(wu)(wu)縫(feng)(feng)(feng)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)壓力，約為10兆帕。不(bu)同用(yong)(yong)(yong)途:無(wu)(wu)縫(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)主(zhu)要(yao)用(yong)(yong)(yong)于(yu)(yu)建(jian)筑行業，而無(wu)(wu)縫(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)主(zhu)要(yao)用(yong)(yong)(yong)于(yu)(yu)機(ji)械(xie)行業。不(bu)同工藝:無(wu)(wu)縫(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)需要(yao)軋(ya)制焊接，而無(wu)(wu)縫(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)在軋(ya)制時(shi)一步成型(xing)。平頂山(shan)無(wu)(wu)縫(feng)(feng)(feng)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)不(bu)僅用(yong)(yong)(yong)于(yu)(yu)輸(shu)送流體和粉狀固(gu)體、交換熱能、制造機(ji)械(xie)零(ling)件和容器，還是一種(zhong)經濟(ji)的(de)鋼(gang)(gang)(gang)材。鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)可以用(yong)(yong)(yong)來制造建(jian)筑結(jie)構(gou)(gou)網格、柱子(zi)和機(ji)械(xie)支撐，可以減(jian)少。