而這不(bu)僅僅會(hui)給企業(ye)，帶來(lai)一些經(jing)濟上損失(shi)。對于施工(gong)工(gong)人來(lai)說，可(ke)(ke)能(neng)一次事故，就(jiu)(jiu)(jiu)表(biao)(biao)一條生(sheng)命(ming)逝去。可(ke)(ke)是(shi)(shi)在(zai)近(jin)幾年(nian)，這樣一些事故，為什么越(yue)來(lai)越(yue)少了(le)呢。那(nei)是(shi)(shi)因為近(jin)幾年(nian)，現(xian)(xian)了(le)一種(zhong)(zhong)，更(geng)加優質管(guan)(guan)(guan)(guan)(guan)(guan)道，這就(jiu)(jiu)(jiu)是(shi)(shi)無(wu)(wu)(wu)縫(feng)鋼管(guan)(guan)(guan)(guan)(guan)(guan)。 　　首先：主要就(jiu)(jiu)(jiu)是(shi)(shi)他(ta)們成(cheng)工(gong)藝不(bu)同。普通鋼管(guan)(guan)(guan)(guan)(guan)(guan)，比如自來(lai)水(shui)水(shui)管(guan)(guan)(guan)(guan)(guan)(guan)，一般是(shi)(shi)通過(guo)(guo)將平板材經(jing)折彎后焊(han)(han)接起來(lai)，這種(zhong)(zhong)工(gong)藝比較(jiao)簡單粗糙(cao)，成(cheng)品加工(gong)后可(ke)(ke)以在(zai)上面發現(xian)(xian)一條焊(han)(han)縫(feng)。而無(wu)(wu)(wu)縫(feng)鋼管(guan)(guan)(guan)(guan)(guan)(guan)一般是(shi)(shi)將熔融狀態鋼水(shui)通過(guo)(guo)環形(xing)狹縫(feng)積壓(ya)來(lai)后再(zai)經(jing)拉伸等(deng)處理(li)工(gong)藝成(cheng)，在(zai)這種(zhong)(zhong)工(gong)藝下就(jiu)(jiu)(jiu)沒有(you)(you)(you)焊(han)(han)縫(feng)。 　　酸洗過(guo)(guo)程(cheng)就(jiu)(jiu)(jiu)是(shi)(shi)為了(le)去除(chu)表(biao)(biao)面氧化皮，后經(jing)過(guo)(guo)潤(run)滑處理(li)（碳素鋼-磷(lin)皂化，無(wu)(wu)(wu)縫(feng)鋼管(guan)(guan)(guan)(guan)(guan)(guan)-牛石灰(hui)，銅鋁管(guan)(guan)(guan)(guan)(guan)(guan)-涂），老工(gong)藝-鍍銅），再(zai)進(jin)行(xing)拔制深加工(gong)。鋼管(guan)(guan)(guan)(guan)(guan)(guan)如果(guo)不(bu)酸洗、表(biao)(biao)面可(ke)(ke)能(neng)有(you)(you)(you)氧化物和污，磷(lin)化液核能(neng)無(wu)(wu)(wu)法將它們除(chu)去，磷(lin)化質量會(hui)降低。 　　但如果(guo)使是(shi)(shi)無(wu)(wu)(wu)縫(feng)鋼管(guan)(guan)(guan)(guan)(guan)(guan)，那(nei)么就(jiu)(jiu)(jiu)不(bu)會(hui)，現(xian)(xian)這樣一些問題。因為無(wu)(wu)(wu)縫(feng)鋼管(guan)(guan)(guan)(guan)(guan)(guan)，在(zai)制作過(guo)(guo)程(cheng)中，采(cai)是(shi)(shi)三輥連(lian)軋，經(jing)過(guo)(guo)這樣程(cheng)序之(zhi)后，管(guan)(guan)(guan)(guan)(guan)(guan)道還會(hui)進(jin)行(xing)定(ding)測試。這有(you)(you)(you)效避(bi)免了(le)，一根無(wu)(wu)(wu)縫(feng)鋼管(guan)(guan)(guan)(guan)(guan)(guan)，各(ge)個部分直，現(xian)(xian)不(bu)同情(qing)況。