Amapayipi ensimbi eza ngezindlela eziningi nobukhulu. Ipayipi elingenamthungo liyinketho engahlanganisiwe, eyenziwe nge-billet yensimbi enezimbobo. Uma kuziwa kumapayipi ensimbi ashiselwe, kunezinketho ezintathu: ERW, LSAW kanye ne-SSAW.
Amapayipi e-ERW enziwe ngamapuleti ensimbi ashiselwe ukumelana. Ipayipi le-LSAW lenziwe ngepuleti lensimbi elishiselwe ngaphansi kwe-arc longitudinal. Ipayipi le-SSAW lenziwe ngepuleti lensimbi elihlanganisiwe elingaphansi kwe-arc elihlanganisiwe.
Ake sihlolisise uhlobo ngalunye lwepayipi, siqhathanise ukuhluka kwawo, kanye nendlela yokusebenzisa incazelo efanele uku-oda.
Ithubhu yensimbi engenamthungo
Ishubhu elingenamthungo lenziwe nge-billet yensimbi engagqwali, eshisiswe futhi imbozwe ngembobo ukuze yakhe ingxenye eyisiyingi engenalutho. Ngenxa yokuthi ipayipi elingenamthungo alinayo indawo yokushisela, libhekwa njengelinamandla kunepayipi elishiselwe futhi alijwayele ukugqwala, ukuguguleka nokwehluleka okuvamile.
Kodwa-ke, izindleko ngethani ngalinye lamapayipi angenamthungo ziphakeme ngo-25-40% kunalezo zepayipi le-ERW. Osayizi bamapayipi ensimbi angenamthungo basukela ku-1/8 intshi ukuya ku-36 intshi.
Ipayipi le-Resistance welding (ERW).
I-ERW (i-resistance welding) ipayipi yensimbi yakhiwa ngokugoqa insimbi ibe yipayipi futhi ixhume iziphetho ezimbili ngama-electrode amabili ethusi. Lawa ma-electrode ane-disc futhi azungeza njengoba izinto zidlula phakathi kwawo. Lokhu kuvumela i-electrode ukuthi igcine ukuxhumana okuqhubekayo nempahla isikhathi eside sokushisela okuqhubekayo. Inqubekelaphambili yobuchwepheshe be-welding iyaqhubeka nokuthuthukisa le nqubo.
Ipayipi le-ERW lithatha indawo eyongayo futhi ephumelelayo yepayipi lensimbi engenamthungo, elihlala isikhathi eside kunepayipi le-SAW. Uma kuqhathaniswa nenqubo ye-solvent esetshenziselwa ipayipi elishiselwe i-arc elingaphansi kwamanzi, ukukhubazeka nakho akunakwenzeka ukuthi kwenzeke, futhi ukukhubazeka okuqondile kwe-weld kungabonakala kalula ngokucabangela kwe-ultrasonic noma umbono.
Ububanzi bepayipi le-ERW busuka kumayintshi (15 mm) kuye kumayintshi angu-24 (21.34 mm).
Ipayipi elishiselwe i-arc elingaphansi
I-LSAW (i-straight seam welding) kanye ne-SSAW (i-spiral seam welding) yizinhlobonhlobo zamapayipi ashiselwe i-arc. Inqubo ye-arc welding engaphansi kwamanzi ikhiqiza ukuminyana okuphezulu kwamanje ukuvimbela ukuchithwa kokushisa okusheshayo kwesendlalelo se-flux nokugxila endaweni yokushisela.
Umehluko omkhulu phakathi kwamapayipi e-LSAW kanye ne-SSAW yisiqondiso se-weld, esizothinta amandla okuthwala ingcindezi kanye nokulula kokukhiqiza. I-LSAW isetshenziselwa izinhlelo zokusebenza ze-medium-voltage kuya ku-high-voltage, futhi i-SSAW isetshenziselwa izinhlelo zokusebenza zamandla aphansi. Amapayipi e-LSAW abiza kakhulu kunamapayipi e-SSAW.
Ipayipi elishiselwe i-arc elingaphansi longitudinal
Ipayipi le-LSAW lenziwa ngokwenza isikhunta sensimbi yekhoyili egoqiwe eshisayo ibe isilinda bese ihlanganisa iziphetho zombili ngokushisela okuqondile. Lokhu kudala ipayipi elishiselwe ngobude. Lawa mapayipi asetshenziselwa ikakhulukazi amapayipi okuhambisa amabanga amade kawoyela, igesi yemvelo, amalahle awuketshezi, ama-hydrocarbon, njll.
Kunezinhlobo ezimbili zamapayipi we-LSAW: umthungo owodwa we-longitudinal kanye ne-double seam (DSAW). Ipayipi lensimbi le-LSAW liqhudelana nepayipi lensimbi elingenamthungo kanye nepayipi lensimbi elingu-16 kuya ku-24 intshi le-ERW. Embonini kawoyela negesi yemvelo, amapayipi we-API 5L LSAW anobubanzi obukhulu asetshenziselwa ukuthutha okude nokuhamba kahle kwama-hydrocarbon.
Ububanzi bepayipi LOMTHETHO kuvame ukuba phakathi kwamayintshi angu-16 no-60 amayintshi (406 mm kanye no-1500 mm).
Okungenamthungo - izinsalela zempi eziqhumayo - i-arc welding engaphansi kwe-longitudinal - i-spiral submerged arc welding - ipayipi - i-spiral submerged arc welding
Ipayipi le-SSAW
Ipayipi lensimbi le-SSAW lakhiwa ngokugoqa kanye nokushisela umucu wensimbi endaweni ezungezayo noma ezungezayo ukwenza ukushisela kube ukuzungeza. Inqubo ye-spiral welding yenza kube nokwenzeka ukukhiqiza imikhiqizo enobubanzi obukhulu. Amapayipi ensimbi okugobile asetshenziswa kakhulu ekudluliseni uketshezi olunengcindezi ephansi, njengamapayipi asezindaweni ezingasogwini, izitshalo ze-petrochemical noma izindawo zemikhumbi, kanye nezakhiwo zomphakathi kanye nokunqwabelanisa.
Ibanga lobubanzi bepayipi le-SSAW ngokuvamile lingama-intshi angu-20 ukuya kwangu-100 (406 mm kuya ku-25040 mm).
Unga-oda kanjani amapayipi ensimbi ephrojekthi yakho
Lapho uyala amapayipi ensimbi, kunezilinganiso ezimbili ezibalulekile: usayizi wepayipi lokuzisholo (i-NPS) nokuqina kodonga (uhlelo). Kumapayipi angaphansi kwama-intshi angu-4, ubude bepayipi bungaba okungahleliwe okungahleliwe (SRL) amamitha angu-5-7, noma ngamapayipi angaphezu kwama-intshi angu-4, ubude bepayipi bungaba kabili ngokungahleliwe (DRL) 11-13 amamitha. Ubude bangokwezifiso buyatholakala kumapayipi amade. Iziphetho zamapayipi zingaba yi-bevel (ibe), indiza (pe), intambo (THD) intambo nokuhlanganisa (T&C) noma umsele.
Isifinyezo semininingwane ye-oda evamile:
Uhlobo (olungenamthungo noma olushiselwe)
Usayizi wepayipi lokuzisholo
Isheduli
Qeda uhlobo
Ibanga lezinto ezibonakalayo
Ubuningi ngamamitha noma izinyawo noma amathani.
Uma ucabanga ngokuthenga IPHIPHA ELITHUMILE, ERW PIPE, SSAW PIPE NOMA LSAW PIPE, bona izinketho uJINDALAI anazo futhi ucabangele ukufinyelela ithimba lethu ukuze uthole ulwazi olwengeziwe. Sizokunikeza isixazululo esingcono kakhulu sephrojekthi yakho.
Xhumana nathi manje!
TEL/WECHAT: +86 18864971774 WHATSAPP:https://wa.me/8618864971774I-imeyili:jindalaisteel@gmail.comIwebhusayithi:www.jindalaisteel.com.
Isikhathi sokuthumela: Apr-04-2023