Zombili izindlela zokukhiqiza amapayipi ensimbi a-Electric resistant welded (ERW) kanye ne-Seamless (SMLS) sezisetshenziswe amashumi eminyaka; ngokuhamba kwesikhathi, izindlela ezisetshenziswa ukukhiqiza ngayinye ziye zathuthuka. Ngakho yikuphi okungcono?
1. Ukukhiqiza ipayipi elishiselwe
Ipayipi elishiselwe liqala liyiribhoni lensimbi elide eligoqiwe elibizwa ngokuthi i-skelp. I-skelp isikwa ubude obufunayo, okuholela eshidini eliyisicaba elingunxande. Ububanzi bamaphethelo amafushane alelo shidi buzoba isiyingi sangaphandle sepayipi, inani elingasetshenziswa ukubala ububanzi balo bangaphandle ekugcineni.
Amashidi angunxande andliwa ngomshini ogoqayo ogoqa izinhlangothi ezinde zibheke kwelinye, enze isilinda. Enqubweni ye-ERW, amandla kagesi we-high-frequency adluliswa phakathi kwamaphethelo, okubangela ukuba ancibilike futhi ahlangane ndawonye.
Inzuzo yepayipi le-ERW ukuthi azikho izinsimbi ezihlanganisiwe ezisetshenziswayo futhi umthungo we-weld awukwazi ukubonakala noma ukuzwakala. Lokho kuphambene ne-double submerged arc welding (i-DSAW), eshiya ngemuva ubuhlalu obucacile bokushisela okufanele buqedwe ngokuya ngesicelo.
Amasu okukhiqiza amapayipi ashiselwe athuthukile ngokuhamba kweminyaka. Mhlawumbe intuthuko ebaluleke kakhulu kube ukushintshela kumagagasi kagesi anemvamisa ephezulu yokushisela. Ngaphambi kweminyaka yawo-1970, kwakusetshenziswa i-low-frequency current. Imithungo yokushisela ekhiqizwe kusuka ku-ERW yefrikhwensi ephansi yayithambekele kakhulu ekugqwaleni nasekuhlulekeni komthungo.
Izinhlobo eziningi zamapayipi ashiselwe zidinga ukwelashwa kokushisa ngemuva kokukhiqizwa.
2. Ukukhiqiza ipayipi elingenamthungo
Amapayipi angenamthungo aqala njengengxenye eqinile yesilinda yensimbi ebizwa ngokuthi i-billet. Nakuba zisashisa, ama-billet agwazwa phakathi nendawo nge-mandrel. Isinyathelo esilandelayo ukugoqa nokwelula i-billet engenalutho. I-billet igoqwe kahle futhi yeluliwe ize ihlangabezane nobude, ububanzi nokuqina kodonga njengoba kucaciswe i-oda lekhasimende.
Ezinye izinhlobo zamapayipi angenamthungo ziba lukhuni njengoba enziwa, ngakho-ke ukwelashwa kokushisa ngemva kokukhiqiza akudingeki. Abanye bayakudinga ukwelashwa ukushisa. Bheka ukucaciswa kohlobo lwepayipi elingenamthungo olicabangayo ukuze ufunde ukuthi lizodinga yini ukwelashwa kokushisa.
3. Imibono yomlando kanye nezimo zokusebenzisa zepayipi elishiselwe ngokumelene ne-seamless steel pipe
I-ERW kanye namapayipi ensimbi engenamthungo akhona njengezinye izindlela namuhla ngenxa yemibono yomlando.
Ngokuvamile, ipayipi elishiselwe lalibhekwa njengelibuthakathaka ngokwemvelo ngoba lalihlanganisa i-weld seam. Ipayipi elingenamthungo lalingenalo leli phutha lesakhiwo futhi lalibhekwa njengephephile. Nakuba kuyiqiniso ukuthi ipayipi elishiselwe lihlanganisa umthungo olenza libe buthaka ngokucatshangwayo, amasu okukhiqiza kanye nezinhlobo zokuqinisekisa ikhwalithi ngayinye ibe ngcono kangangokuthi ipayipi elishiselwe liyosebenza ngendlela efunwa ngayo lapho ukubekezelela kwawo kungeqiwa. Nakuba inzuzo esobala icacile, ukugxeka kwamapayipi angenamthungo ukuthi inqubo yokugingqa nokwelula ikhiqiza ukushuba kodonga okungaguquki uma kuqhathaniswa nogqinsi olunembe kakhudlwana lwamashidi ensimbi amiselwe ukushiselwa.
Izindinganiso zemboni ezilawula ukukhiqizwa nokucaciswa kwe-ERW kanye nepayipi lensimbi engenamthungo zisabonisa leyo mibono. Isibonelo, amapayipi angenamthungo ayadingeka ezinhlelweni eziningi zokucindezela okukhulu, izinga lokushisa eliphezulu kuwoyela negesi, ukukhiqiza amandla kanye nezimboni zemithi. Amapayipi ashiselwe (okuvame ukushibhile ukuwakhiqiza futhi atholakala kabanzi) acaciswa kuzo zonke izimboni inqobo nje uma izinga lokushisa, ukucindezela nokunye okuguquguqukayo kwesevisi kungeqi imingcele ephawulwe ezingeni elisebenzayo.
Ezinhlelweni zokusebenza zesakhiwo, awukho umehluko ekusebenzeni phakathi kwe-ERW nepayipi lensimbi engenamthungo. Nakuba kokubili kungacaciswa ngokushintshana, ngeke kube nengqondo ukucacisa ngokungenamthungo lapho ipayipi elishibhile elishibhile lisebenza ngokulinganayo.
4. Sibonise imininingwane yakho, cela isaphulelo futhi uthole ipayipi lakho ngokushesha
I-Jindalai Steel Group ihlala igcwele i-inventory ehamba phambili yemikhiqizo yamapayipi ensimbi eshiselwe futhi engenamthungo embonini. Sithola amasheya ethu ezigayweni ezizungeze i-China, siqinisekisa ukuthi abathengi bathola ipayipi ngokushesha isidingo kungakhathaliseki noma yimiphi imikhawulo engokomthetho esebenzayo.
I-Jindalai ingakusiza ukwazi inqubo yokuthengwa kwamapayipi kusukela ekuqaleni kuze kube sekupheleni ukuze uqinisekise ukuthi uthola okudingayo ngokushesha okukhulu uma kuyisikhathi sokuthenga. Uma ukuthenga amapayipi kusesikhathini esizayo esiseduze, cela ikhotheshini. Sizohlinzeka ngeyokutholela yona kanye imikhiqizo oyidingayo ngokushesha.
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Isikhathi sokuthumela: Dec-19-2022