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什么是焊管?

返回列表 來(lai)源: 發布日期: 2010.03.26

 焊(han)(han)管(guan)(guan),用(yong)鋼(gang)板或鋼(gang)帶經(jing)過卷(juan)曲成型后(hou)焊(han)(han)接(jie)(jie)制成的(de)(de)(de)鋼(gang)管(guan)(guan)。焊(han)(han)接(jie)(jie)鋼(gang)管(guan)(guan)生(sheng)產(chan)工藝簡單,生(sheng)產(chan)效率高(gao),品(pin)種(zhong)規(gui)格多,設(she)備資少,但一般強度低于無縫鋼(gang)管(guan)(guan)。20世紀(ji)30年(nian)代以(yi)來,隨著優(you)質(zhi)帶鋼(gang)連軋生(sheng)產(chan)的(de)(de)(de)迅速發展以(yi)及焊(han)(han)接(jie)(jie)和檢驗技術的(de)(de)(de)進步(bu),焊(han)(han)縫質(zhi)量不(bu)斷(duan)提高(gao),焊(han)(han)接(jie)(jie)鋼(gang)管(guan)(guan)的(de)(de)(de)品(pin)種(zhong)規(gui)格日益增(zeng)多,并在(zai)越來越多的(de)(de)(de)領(ling)域代替了無縫鋼(gang)管(guan)(guan)。焊(han)(han)接(jie)(jie)鋼(gang)管(guan)(guan)按焊(han)(han)縫的(de)(de)(de)形式分為直縫焊(han)(han)管(guan)(guan)和螺(luo)旋焊(han)(han)管(guan)(guan)。

   直縫(feng)焊管(guan)(guan)生(sheng)產(chan)工藝簡單,生(sheng)產(chan)效率高,本錢低(di),發展較(jiao)快(kuai)。螺(luo)旋焊管(guan)(guan)的(de)(de)強度(du)一般(ban)比直縫(feng)焊管(guan)(guan)高,能用較(jiao)窄的(de)(de)坯料生(sheng)產(chan)管(guan)(guan)徑(jing)較(jiao)大的(de)(de)焊管(guan)(guan),還可以用同樣(yang)寬度(du)的(de)(de)坯料生(sheng)產(chan)管(guan)(guan)徑(jing)不(bu)同的(de)(de)焊管(guan)(guan)。但是與(yu)相同長度(du)的(de)(de)直縫(feng)管(guan)(guan)相比,焊縫(feng)長度(du)增加(jia)30~100%而(er)且生(sheng)產(chan)速度(du)較(jiao)低(di)。

因此,較小口徑(jing)的焊(han)管大都采用(yong)直縫焊(han),大口徑(jing)焊(han)管則大多采用(yong)螺旋焊(han)。

1.低(di)(di)壓(ya)(ya)流(liu)體(ti)(ti)輸送(song)用(yong)(yong)(yong)(yong)焊(han)接(jie)(jie)鋼(gang)管(guan)(guan)(guan)(guan)(guan)(GB/T3092-1993也稱(cheng)(cheng)一般(ban)焊(han)管(guan)(guan)(guan)(guan)(guan),俗稱(cheng)(cheng)黑管(guan)(guan)(guan)(guan)(guan)。用(yong)(yong)(yong)(yong)于(yu)輸送(song)水、煤(mei)氣、空氣、油和(he)取暖蒸汽等一般(ban)較低(di)(di)壓(ya)(ya)力流(liu)體(ti)(ti)和(he)其他(ta)用(yong)(yong)(yong)(yong)途的焊(han)接(jie)(jie)鋼(gang)管(guan)(guan)(guan)(guan)(guan)。鋼(gang)管(guan)(guan)(guan)(guan)(guan)接(jie)(jie)壁厚分(fen)為普通鋼(gang)管(guan)(guan)(guan)(guan)(guan)和(he)加厚鋼(gang)管(guan)(guan)(guan)(guan)(guan);接(jie)(jie)管(guan)(guan)(guan)(guan)(guan)端形式分(fen)為不帶(dai)螺紋(wen)鋼(gang)管(guan)(guan)(guan)(guan)(guan)(光管(guan)(guan)(guan)(guan)(guan))和(he)帶(dai)螺紋(wen)鋼(gang)管(guan)(guan)(guan)(guan)(guan)。鋼(gang)管(guan)(guan)(guan)(guan)(guan)的規格(ge)用(yong)(yong)(yong)(yong)公稱(cheng)(cheng)口(kou)(kou)徑(jing)(mm表(biao)示,公稱(cheng)(cheng)口(kou)(kou)徑(jing)是內徑(jing)的近似(si)值。習(xi)慣上常用(yong)(yong)(yong)(yong)英寸表(biao)示,如11/2等。低(di)(di)壓(ya)(ya)流(liu)體(ti)(ti)輸送(song)用(yong)(yong)(yong)(yong)焊(han)接(jie)(jie)鋼(gang)管(guan)(guan)(guan)(guan)(guan)除直接(jie)(jie)用(yong)(yong)(yong)(yong)于(yu)輸送(song)流(liu)體(ti)(ti)外(wai),還大量(liang)用(yong)(yong)(yong)(yong)作低(di)(di)壓(ya)(ya)流(liu)體(ti)(ti)輸送(song)用(yong)(yong)(yong)(yong)鍍鋅焊(han)接(jie)(jie)鋼(gang)管(guan)(guan)(guan)(guan)(guan)的原(yuan)管(guan)(guan)(guan)(guan)(guan)。

2.低壓(ya)流體(ti)輸(shu)(shu)送用(yong)鍍(du)鋅(xin)(xin)(xin)(xin)焊接(jie)鋼(gang)管(guan)(guan)(GB/T3091-1993也稱(cheng)鍍(du)鋅(xin)(xin)(xin)(xin)電(dian)(dian)焊鋼(gang)管(guan)(guan),俗(su)稱(cheng)白管(guan)(guan)。用(yong)于輸(shu)(shu)送水、煤氣(qi)、空氣(qi)油及(ji)取暖蒸汽(qi)、暖水等(deng)一般(ban)較低壓(ya)力流體(ti)或(huo)其他用(yong)途的(de)(de)熱浸鍍(du)鋅(xin)(xin)(xin)(xin)焊接(jie)(爐焊或(huo)電(dian)(dian)焊)鋼(gang)管(guan)(guan)。鋼(gang)管(guan)(guan)接(jie)壁厚(hou)分(fen)為普(pu)通鍍(du)鋅(xin)(xin)(xin)(xin)鋼(gang)管(guan)(guan)和加(jia)厚(hou)鍍(du)鋅(xin)(xin)(xin)(xin)鋼(gang)管(guan)(guan);接(jie)管(guan)(guan)端(duan)形(xing)式分(fen)為不帶螺紋(wen)鍍(du)鋅(xin)(xin)(xin)(xin)鋼(gang)管(guan)(guan)和帶螺紋(wen)鍍(du)鋅(xin)(xin)(xin)(xin)鋼(gang)管(guan)(guan)。鋼(gang)管(guan)(guan)的(de)(de)規格用(yong)公(gong)稱(cheng)口(kou)徑(mm表示(shi)(shi),公(gong)稱(cheng)口(kou)徑是內徑的(de)(de)近似值。習(xi)慣上常用(yong)英寸表示(shi)(shi),如11/2等(deng)。

3.普通碳(tan)素鋼(gang)電線套(tao)管(guan)(GB3640-88工業與民用建(jian)筑、裝置機器設(she)備等電氣(qi)裝置工程中用于保護電線的鋼(gang)管(guan)。

4.直縫(feng)電(dian)焊鋼(gang)管(guan)(guan)(YB242-63焊縫(feng)與鋼(gang)管(guan)(guan)縱向平行的鋼(gang)管(guan)(guan)。通常分為公制(zhi)電(dian)焊鋼(gang)管(guan)(guan)、電(dian)焊薄壁管(guan)(guan)、變壓(ya)器冷卻(que)油管(guan)(guan)等(deng)等(deng)。

5.承(cheng)壓(ya)流體輸(shu)(shu)送(song)用螺旋(xuan)縫埋弧(hu)焊(han)鋼(gang)管(guan)(SY5036-83以熱軋(ya)鋼(gang)帶卷(juan)作(zuo)管(guan)坯,經(jing)常(chang)溫螺旋(xuan)成型,用雙(shuang)面埋弧(hu)焊(han)法焊(han)接,用于承(cheng)壓(ya)流體輸(shu)(shu)送(song)的(de)螺旋(xuan)縫鋼(gang)管(guan)。鋼(gang)管(guan)承(cheng)壓(ya)能(neng)力強,焊(han)接性能(neng)好,經(jing)過各種嚴格的(de)科學檢驗和測(ce)試(shi),使用平安可靠(kao)。鋼(gang)管(guan)口徑大,輸(shu)(shu)送(song)效率高(gao),并可節約(yue)鋪設管(guan)線的(de)投資。主要用于輸(shu)(shu)送(song)石(shi)油、天(tian)然氣的(de)管(guan)線。

6.承壓流體輸(shu)送用(yong)螺旋縫高頻焊(han)鋼(gang)(gang)管(guan)(SY5038-83以熱軋鋼(gang)(gang)帶卷作管(guan)坯,經常溫(wen)螺旋成(cheng)型,采用(yong)高頻搭接(jie)焊(han)法焊(han)接(jie)的(de)(de)(de)用(yong)于承壓流體輸(shu)送的(de)(de)(de)螺旋縫高頻焊(han)鋼(gang)(gang)管(guan)。鋼(gang)(gang)管(guan)承壓能力強,塑性好,便于焊(han)接(jie)和(he)加工成(cheng)型;經過各種嚴格和(he)科學檢(jian)驗和(he)測試(shi),使用(yong)平安可靠(kao),鋼(gang)(gang)管(guan)口徑大,輸(shu)送效率(lv)高,并(bing)可節省鋪設管(guan)線的(de)(de)(de)投(tou)資。主要用(yong)于鋪設輸(shu)送石(shi)油、天(tian)然氣等的(de)(de)(de)管(guan)線。

7.一(yi)般低壓(ya)流體輸送用螺旋(xuan)縫埋(mai)弧(hu)焊(han)(han)鋼管(guan)(SY5037-83以熱軋鋼帶卷作管(guan)坯,經常(chang)溫螺旋(xuan)成型,采(cai)用雙(shuang)面自(zi)動(dong)埋(mai)弧(hu)焊(han)(han)或單面焊(han)(han)法制成的用于(yu)水、煤氣、空氣和蒸(zheng)汽等一(yi)般低壓(ya)流體輸送用埋(mai)弧(hu)焊(han)(han)鋼管(guan)。

8.一般低壓流(liu)(liu)體輸送(song)用(yong)(yong)螺旋縫(feng)高頻焊鋼(gang)管(guan)(guan)(SY5039-83以熱(re)軋鋼(gang)帶卷(juan)作管(guan)(guan)坯,經(jing)常溫螺旋成型,采用(yong)(yong)高頻搭接焊法(fa)焊接用(yong)(yong)于一般低壓流(liu)(liu)體輸送(song)用(yong)(yong)螺旋縫(feng)高頻焊鋼(gang)管(guan)(guan)。

9.樁(zhuang)用(yong)螺旋(xuan)焊(han)縫鋼管(guan)(SY5040-83以熱(re)軋鋼帶(dai)卷(juan)作(zuo)管(guan)坯,經常溫螺旋(xuan)成(cheng)型(xing),采用(yong)雙面埋(mai)弧焊(han)接(jie)或高頻焊(han)接(jie)制(zhi)成(cheng)的用(yong)于(yu)土(tu)木建筑(zhu)結構、碼頭、橋(qiao)梁等基礎樁(zhuang)用(yong)鋼管(guan)。

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