草莓视频在线下载

天津無縫鋼管廠生產(chan)出的產(chan)品按用(yong)(yong)(yong)途分類--管(guan)(guan)(guan)(guan)(guan)道用(yong)(yong)(yong)鋼(gang)(gang)管(guan)(guan)(guan)(guan)(guan)、熱工設(she)備用(yong)(yong)(yong)鋼(gang)(gang)管(guan)(guan)(guan)(guan)(guan)、機(ji)械(xie)工業(ye)用(yong)(yong)(yong)鋼(gang)(gang)管(guan)(guan)(guan)(guan)(guan)、石油(you)、地質(zhi)鉆探(tan)用(yong)(yong)(yong)鋼(gang)(gang)管(guan)(guan)(guan)(guan)(guan)、容器(qi)鋼(gang)(gang)管(guan)(guan)(guan)(guan)(guan)、化學工業(ye)用(yong)(yong)(yong)鋼(gang)(gang)管(guan)(guan)(guan)(guan)(guan)、特殊用(yong)(yong)(yong)途鋼(gang)(gang)管(guan)(guan)(guan)(guan)(guan)、其他4.化學成(cheng)分檢驗 

如：1.低(di)壓流(liu)(liu)體輸(shu)送用(yong)焊(han)接(jie)(jie)鋼(gang)管(guan)(guan)（GB/T3092-1993）也(ye)稱一(yi)般焊(han)管(guan)(guan)，俗稱黑管(guan)(guan)。是用(yong)于輸(shu)送水、煤氣(qi)、空氣(qi)、油和(he)取暖蒸汽等一(yi)般較低(di)壓力流(liu)(liu)體和(he)其(qi)他(ta)用(yong)途(tu)的焊(han)接(jie)(jie)鋼(gang)管(guan)(guan)。鋼(gang)管(guan)(guan)接(jie)(jie)壁厚分(fen)為普(pu)通鋼(gang)管(guan)(guan)和(he)加(jia)厚鋼(gang)管(guan)(guan)；接(jie)(jie)管(guan)(guan)端(duan)形式分(fen)為不帶螺紋鋼(gang)管(guan)(guan)（光管(guan)(guan)）和(he)帶螺紋鋼(gang)管(guan)(guan)。鋼(gang)管(guan)(guan)的規格用(yong)公稱口徑(jing)（mm）表示，公稱口徑(jing)是內徑(jing)的近似(si)值。習慣(guan)上常用(yong)英寸表示，如11/2 等。低(di)壓流(liu)(liu)體輸(shu)送用(yong)焊(han)接(jie)(jie)鋼(gang)管(guan)(guan)除直接(jie)(jie)用(yong)于輸(shu)送流(liu)(liu)體外，還大(da)量用(yong)作低(di)壓流(liu)(liu)體輸(shu)送用(yong)鍍鋅焊(han)接(jie)(jie)鋼(gang)管(guan)(guan)的原管(guan)(guan)。

2.低壓(ya)流(liu)(liu)體(ti)輸(shu)送用(yong)鍍(du)(du)(du)鋅焊(han)接(jie)鋼(gang)管(guan)(guan)(guan)（GB/T3091-1993）也稱鍍(du)(du)(du)鋅電焊(han)鋼(gang)管(guan)(guan)(guan)，俗稱白管(guan)(guan)(guan)。是用(yong)于輸(shu)送水(shui)、煤氣、空氣、油及取暖蒸汽、暖水(shui)等(deng)一般較低壓(ya)力流(liu)(liu)體(ti)或其他用(yong)途的(de)熱浸鍍(du)(du)(du)鋅焊(han)接(jie)（爐焊(han)或電焊(han)）鋼(gang)管(guan)(guan)(guan)。鋼(gang)管(guan)(guan)(guan)接(jie)壁厚(hou)分為普通鍍(du)(du)(du)鋅鋼(gang)管(guan)(guan)(guan)和(he)加厚(hou)鍍(du)(du)(du)鋅鋼(gang)管(guan)(guan)(guan)；接(jie)管(guan)(guan)(guan)端形式分為不(bu)帶螺紋鍍(du)(du)(du)鋅鋼(gang)管(guan)(guan)(guan)和(he)帶螺紋鍍(du)(du)(du)鋅鋼(gang)管(guan)(guan)(guan)。鋼(gang)管(guan)(guan)(guan)的(de)規格用(yong)公稱口徑(jing)（mm）表(biao)示，公稱口徑(jing)是內(nei)徑(jing)的(de)近似值。習(xi)慣上常用(yong)英寸表(biao)示，如11/2 等(deng)。

3.普(pu)通(tong)碳素鋼電(dian)線(xian)套管（GB3640-88）是工(gong)業與民用建筑、安裝機器設備等電(dian)氣安裝工(gong)程(cheng)中(zhong)用于(yu)保護(hu)電(dian)線(xian)的鋼管。

4.直縫電焊鋼(gang)管(guan)（YB242-63）是焊縫與鋼(gang)管(guan)縱向平行的鋼(gang)管(guan)。通常(chang)分為公制電焊鋼(gang)管(guan)、電焊薄壁管(guan)、變壓器冷(leng)卻油管(guan)等等。

5.承(cheng)壓流體輸(shu)送用(yong)(yong)螺(luo)(luo)旋(xuan)縫埋弧(hu)焊鋼管(guan)(guan)(guan)(guan)（SY5036-83）是以熱軋鋼帶卷作(zuo)管(guan)(guan)(guan)(guan)坯(pi)，經常(chang)溫螺(luo)(luo)旋(xuan)成型，用(yong)(yong)雙(shuang)面埋弧(hu)焊法焊接，用(yong)(yong)于承(cheng)壓流體輸(shu)送的螺(luo)(luo)旋(xuan)縫鋼管(guan)(guan)(guan)(guan)。鋼管(guan)(guan)(guan)(guan)承(cheng)壓能(neng)力強(qiang)，焊接性能(neng)好，經過各種嚴格的科學(xue)檢驗和(he)測試，使用(yong)(yong)安全可靠。鋼管(guan)(guan)(guan)(guan)口徑大(da)，輸(shu)送效率高，并(bing)可節(jie)約鋪(pu)設管(guan)(guan)(guan)(guan)線的投(tou)資。主要用(yong)(yong)于輸(shu)送石油、天然氣(qi)的管(guan)(guan)(guan)(guan)線。