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• 鍍鋅方管規格齊全，鍍鋅方管質優價廉

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• 　　鍍鋅方管規格齊全，鍍鋅方管質優價廉

         無錫蘇拓特鋼有限公司是專業生產及銷售鍍鋅管，鍍鋅方管，熱鍍鋅方管，無錫鍍鋅方管，無錫鍍鋅管的(de)廠家(jia) ，長期備有萬(wan)噸(dun)(dun)現(xian)貨！公司(si)還與幾(ji)十家(jia)大型鋼材廠家(jia)建(jian)立了長期穩定的(de)合作關(guan)系，貨源充足，品種規格齊全，現(xian)在庫存量達兩(liang)萬(wan)噸(dun)(dun)，上千(qian)種型號。

  　　鍍(du)鋅(xin)方(fang)管(guan)(guan)是一種具以(yi)熱(re)軋或(huo)(huo)冷軋鍍(du)鋅(xin)帶鋼(gang)(gang)或(huo)(huo)鍍(du)鋅(xin)卷(juan)板為坯料(liao)經冷彎曲加工成型(xing)(xing)后再(zai)經高頻焊接制成的(de)(de)方(fang)形截(jie)面(mian)(mian)形狀尺寸的(de)(de)空心(xin)方(fang)形的(de)(de)截(jie)面(mian)(mian)型(xing)(xing)鋼(gang)(gang)鋼(gang)(gang)管(guan)(guan);或(huo)(huo)將事先做好的(de)(de)冷彎空心(xin)型(xing)(xing)鋼(gang)(gang)管(guan)(guan)再(zai)經熱(re)浸鍍(du)鋅(xin)加工而成的(de)(de)鍍(du)鋅(xin)方(fang)矩管(guan)(guan)。

  　　鍍鋅方管從生產工藝上是分為熱鍍鋅方管和(he)冷鍍鋅方管的(de)。正是由(you)于這兩種鍍鋅方管的(de)加(jia)不相(xiang)同也就造就了它(ta)(ta)們(men)很多不同的(de)物理和(he)化學性質(zhi)。總的(de)來(lai)說它(ta)(ta)們(men)在強度、韌(ren)性和(he)機械性能方面都有很多的(de)區(qu)別。

  　　鍍鋅方管的(de)均(jun)勻變形(xing)程度

  　　鍍鋅方管均(jun)勻變(bian)(bian)(bian)(bian)形(xing)(xing)(xing)是(shi)物(wu)體變(bian)(bian)(bian)(bian)形(xing)(xing)(xing)的最簡單情(qing)況，其特點是(shi)：平(ping)(ping)(ping)面與敘線在變(bian)(bian)(bian)(bian)形(xing)(xing)(xing)后(hou)仍(reng)為(wei)平(ping)(ping)(ping)面與直(zhi)線.平(ping)(ping)(ping)行(xing)線與平(ping)(ping)(ping)行(xing)平(ping)(ping)(ping)面在變(bian)(bian)(bian)(bian)形(xing)(xing)(xing)后(hou)仍(reng)保(bao)持平(ping)(ping)(ping)行(xing)，與應(ying)變(bian)(bian)(bian)(bian)主軸(zhou)方向(xiang)相垂直(zhi)的立方體.在均(jun)勻變(bian)(bian)(bian)(bian)形(xing)(xing)(xing)后(hou)僅有線性尺于的改變(bian)(bian)(bian)(bian)而無剪(jian)變(bian)(bian)(bian)(bian)形(xing)(xing)(xing)產(chan)生，變(bian)(bian)(bian)(bian)形(xing)(xing)(xing)體若為(wei)球面.變(bian)(bian)(bian)(bian)形(xing)(xing)(xing)后(hou)則為(wei)橢球面。

  　　由此(ci)可見.均(jun)勻(yun)變形(xing)的特征表現為物體各(ge)點的位移是原始坐標(biao)的線性函數，均(jun)勻(yun)變形(xing)只(zhi)有三(san)個(ge)主應變而無(wu)剪切應變。

  　　熱鍍鋅方管在(zai)金屬壓力加工(gong)理論(lun)中(zhong).特別是在(zai)軋管(guan)理論(lun)中(zhong).廣泛采用對(dui)數應(ying)變(bian)(bian)來表(biao)示均勻(yun)變(bian)(bian)形(xing)。對(dui)數應(ying)變(bian)(bian)較(jiao)相對(dui)變(bian)(bian)形(xing)系性能更精確地表(biao)示物(wu)體(ti)的變(bian)(bian)形(xing)程(cheng)度。

  

  　　熱鍍鋅方管也(ye)稱焊(han)(han)(han)管(guan)(guan)，是(shi)用鋼(gang)板或鋼(gang)帶經過卷曲(qu)成(cheng)型后焊(han)(han)(han)接(jie)(jie)制成(cheng)的(de)鋼(gang)管(guan)(guan)。焊(han)(han)(han)接(jie)(jie)鋼(gang)管(guan)(guan)生(sheng)(sheng)(sheng)產(chan)(chan)工(gong)藝簡(jian)單(dan)，生(sheng)(sheng)(sheng)產(chan)(chan)效(xiao)(xiao)率高(gao)，品(pin)(pin)種規格多(duo)，設備投資少(shao)，但一(yi)般(ban)強(qiang)度低(di)于無(wu)縫(feng)(feng)鋼(gang)管(guan)(guan)。 20 世紀 30 年(nian)代以(yi)來(lai)，隨著優質熱鍍鋅方(fang)管(guan)(guan)軋生(sheng)(sheng)(sheng)產(chan)(chan)的(de)迅速發(fa)展(zhan)以(yi)及焊(han)(han)(han)接(jie)(jie)和檢驗技(ji)術的(de)進步(bu)，焊(han)(han)(han)縫(feng)(feng)質量不斷提高(gao)，焊(han)(han)(han)接(jie)(jie)鋼(gang)管(guan)(guan)的(de)品(pin)(pin)種規格日益增(zeng)多(duo)，并在越來(lai)越多(duo)的(de)領域代替(ti)了無(wu)縫(feng)(feng)鋼(gang)管(guan)(guan)。焊(han)(han)(han)接(jie)(jie)鋼(gang)管(guan)(guan)按焊(han)(han)(han)縫(feng)(feng)的(de)形式分為直縫(feng)(feng)焊(han)(han)(han)管(guan)(guan)和螺(luo)旋焊(han)(han)(han)管(guan)(guan)。直縫(feng)(feng)焊(han)(han)(han)管(guan)(guan)生(sheng)(sheng)(sheng)產(chan)(chan)工(gong)藝簡(jian)單(dan)，生(sheng)(sheng)(sheng)產(chan)(chan)效(xiao)(xiao)率高(gao)，成(cheng)本低(di)，發(fa)展(zhan)較(jiao)(jiao)快。螺(luo)旋焊(han)(han)(han)管(guan)(guan)的(de)強(qiang)度一(yi)般(ban)比(bi)直縫(feng)(feng)焊(han)(han)(han)管(guan)(guan)高(gao)，能用較(jiao)(jiao)窄的(de)坯(pi)料生(sheng)(sheng)(sheng)產(chan)(chan)管(guan)(guan)徑(jing)(jing)較(jiao)(jiao)大(da)(da)的(de)焊(han)(han)(han)管(guan)(guan)，還可以(yi)用同樣寬度的(de)坯(pi)料生(sheng)(sheng)(sheng)產(chan)(chan)管(guan)(guan)徑(jing)(jing)不同的(de)焊(han)(han)(han)管(guan)(guan)。但是(shi)與相同長度的(de)直縫(feng)(feng)管(guan)(guan)相比(bi)，焊(han)(han)(han)縫(feng)(feng)長度增(zeng)加 30~100% ，而且生(sheng)(sheng)(sheng)產(chan)(chan)速度較(jiao)(jiao)低(di)。因此(ci)，較(jiao)(jiao)小口徑(jing)(jing)的(de)焊(han)(han)(han)管(guan)(guan)大(da)(da)都采用直縫(feng)(feng)焊(han)(han)(han)，大(da)(da)口徑(jing)(jing)焊(han)(han)(han)管(guan)(guan)則(ze)大(da)(da)多(duo)采用螺(luo)旋焊(han)(han)(han)。

  　　低壓流體(ti)輸送(song)(song)用(yong)(yong)(yong)(yong)熱鍍(du)鋅方管(guan) 也稱(cheng)(cheng)一般(ban)焊(han)管(guan)，俗稱(cheng)(cheng)黑管(guan)。是用(yong)(yong)(yong)(yong)于輸送(song)(song)水、煤氣、空氣、油(you)和(he)取暖(nuan)蒸汽等一般(ban)較低壓力流體(ti)和(he)其(qi)他用(yong)(yong)(yong)(yong)途的(de)焊(han)接鋼管(guan)。鋼管(guan)接壁厚(hou)分為(wei)普通鋼管(guan)和(he)加(jia)厚(hou)鋼管(guan);接管(guan)端形(xing)式分為(wei)不帶(dai)螺(luo)紋鋼管(guan)和(he)帶(dai)螺(luo)紋鋼管(guan)。鋼管(guan)的(de)規格用(yong)(yong)(yong)(yong)公稱(cheng)(cheng)口(kou)徑(jing)表示(shi)，公稱(cheng)(cheng)口(kou)徑(jing)是內徑(jing)的(de)近似值(zhi)。習慣(guan)上常用(yong)(yong)(yong)(yong)英寸表示(shi)，如 11/2 等。低壓流體(ti)輸送(song)(song)用(yong)(yong)(yong)(yong)焊(han)接鋼管(guan)除直接用(yong)(yong)(yong)(yong)于輸送(song)(song)流體(ti)外，還大(da)量(liang)用(yong)(yong)(yong)(yong)作低壓流體(ti)輸送(song)(song)用(yong)(yong)(yong)(yong)鍍(du)鋅焊(han)接鋼管(guan)的(de)原(yuan)管(guan)。