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直縫鋼管

直縫鋼管

直(zhi)縫鋼(gang)管是焊(han)縫與(yu)鋼(gang)管縱向平(ping)行的(de)鋼(gang)管,通常分為公制電焊(han)鋼(gang)管、電焊(han)薄壁管、變壓(ya)器冷(leng)卻油管等(deng)等(deng)。直(zhi)縫焊(han)管生(sheng)產(chan)工藝(yi)簡單,生(sheng)產(chan)效率(lv)高,成本低,發展較快(kuai)。


螺旋焊管(guan)(guan)的(de)(de)(de)(de)(de)強度(du)一(yi)般比直縫(feng)(feng)焊管(guan)(guan)高,能用較(jiao)窄的(de)(de)(de)(de)(de)坯料生產管(guan)(guan)徑較(jiao)大(da)的(de)(de)(de)(de)(de)焊管(guan)(guan),還可以用同樣(yang)寬度(du)的(de)(de)(de)(de)(de)坯料生產管(guan)(guan)徑不同的(de)(de)(de)(de)(de)焊管(guan)(guan)。但是與相同長(chang)(chang)度(du)的(de)(de)(de)(de)(de)直縫(feng)(feng)管(guan)(guan)相比,焊縫(feng)(feng)長(chang)(chang)度(du)增加30~100%,而且生產速度(du)較(jiao)低。


直(zhi)縫鋼(gang)(gang)管是一種籠統得叫(jiao)法,方式用鋼(gang)(gang)帶生產(chan),在高頻焊接設備直(zhi)縫焊接的管子都叫(jiao)直(zhi)縫鋼(gang)(gang)管。(由(you)于鋼(gang)(gang)管的焊接處成一條直(zhi)線故而得名)。


其中按照用(yong)途不同(tong)(tong),又不同(tong)(tong)的(de)后道(dao)生產(chan)工序.(大致可分為腳手(shou)架管(guan)(guan)(guan)(guan),流(liu)體(ti)管(guan)(guan)(guan)(guan),電(dian)線套管(guan)(guan)(guan)(guan),支架管(guan)(guan)(guan)(guan),護欄管(guan)(guan)(guan)(guan)等幾種) 而低(di)壓流(liu)體(ti)焊(han)(han)(han)(han)管(guan)(guan)(guan)(guan)是直縫焊(han)(han)(han)(han)管(guan)(guan)(guan)(guan)的(de)一種,一般用(yong)水,煤氣(qi)的(de)輸(shu)送,在焊(han)(han)(han)(han)接(jie)完畢后比普(pu)通焊(han)(han)(han)(han)管(guan)(guan)(guan)(guan)多加(jia)以一道(dao)水壓測試(shi),故而低(di)壓流(liu)體(ti)管(guan)(guan)(guan)(guan)比普(pu)通直縫焊(han)(han)(han)(han)管(guan)(guan)(guan)(guan)價格一般高出一點(按現在的(de)市場價來說,大概高出80元左右) 例如:焊(han)(han)(han)(han)接(jie)鋼(gang)管(guan)(guan)(guan)(guan)流(liu)體(ti)1寸(DN25)(就是Φ33.5*3.25) 焊(han)(han)(han)(han)接(jie)鋼(gang)管(guan)(guan)(guan)(guan):也叫焊(han)(han)(han)(han)管(guan)(guan)(guan)(guan),是用(yong)鋼(gang)板或鋼(gang)帶經過彎曲成(cheng)型,然(ran)后經焊(han)(han)(han)(han)接(jie)制成(cheng)。按焊(han)(han)(han)(han)縫形式分為直縫焊(han)(han)(han)(han)管(guan)(guan)(guan)(guan)和螺旋(xuan)焊(han)(han)(han)(han)管(guan)(guan)(guan)(guan)。按用(yong)途又分為一般焊(han)(han)(han)(han)管(guan)(guan)(guan)(guan)、鍍鋅焊(han)(han)(han)(han)管(guan)(guan)(guan)(guan)、吹氧(yang)焊(han)(han)(han)(han)管(guan)(guan)(guan)(guan)、電(dian)線套管(guan)(guan)(guan)(guan)、公制焊(han)(han)(han)(han)管(guan)(guan)(guan)(guan)、托輥管(guan)(guan)(guan)(guan)、深井泵管(guan)(guan)(guan)(guan)、汽車用(yong)管(guan)(guan)(guan)(guan)、變壓器管(guan)(guan)(guan)(guan)、電(dian)焊(han)(han)(han)(han)薄壁管(guan)(guan)(guan)(guan)、電(dian)焊(han)(han)(han)(han)異(yi)型管(guan)(guan)(guan)(guan)和螺旋(xuan)焊(han)(han)(han)(han)管(guan)(guan)(guan)(guan)。


一般焊管(guan)(guan):一般焊管(guan)(guan)用來輸送(song)低(di)壓(ya)流體。用Q195A、Q215A、Q235A鋼(gang)制造 。也(ye)可采用易于(yu)焊接的其它軟鋼(gang)制造。鋼(gang)管(guan)(guan)要(yao)進行水(shui)壓(ya)、彎曲、壓(ya)扁(bian)等實(shi)驗,對表(biao)面質量有一定(ding)要(yao)求,通(tong)常交貨(huo)長度為(wei)4-10m,常要(yao)求定(ding)尺(chi)(或倍尺(chi))交貨(huo)。焊管(guan)(guan)的規(gui)格用公稱口(kou)徑(jing) 表(biao)示(毫米或英寸)公稱口(kou)徑(jing)與實(shi)際不同,焊管(guan)(guan)按規(gui)定(ding)壁厚(hou)有普通(tong)鋼(gang)管(guan)(guan)和(he)加厚(hou)鋼(gang)管(guan)(guan)兩種,鋼(gang)管(guan)(guan)按管(guan)(guan)端形(xing)式又分帶螺紋和(he)不帶螺紋兩種,為(wei)焊接鋼(gang)管(guan)(guan)尺(chi)寸。


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