I-ASTM A671 ne-A672 womabili amazinga amashubhu ensimbi enziwe ngamapuleti ekhwalithi yomkhumbi ocindezelwe ngamasu welding kagesi (EFW) ngokufakwa kwezinsimbi zokugcwalisa.
Nakuba zifana ezicini eziningi, njengezidingo zokushisela, ukwelashwa kokushisa, nokubekezelelwa kobukhulu, ziyahluka ngobubanzi bazo bokusebenza, ibanga, isigaba, ubukhulu, kanye nezicelo ezithile.
Ububanzi Besicelo
I-ASTM A671:Ukucaciswa Okujwayelekile Kwepayipi Lensimbi Elihlanganisiwe lika-Electric-Fusion-Welded for Atmospheric and Lower Temperatures
I-ASTM A672: Ukucaciswa Okujwayelekile Kwepayipi Yensimbi Kagesi-Fusion-Welded Yesevisi Yokucindezela Okuphezulu Emazingeni Okushisa Aphakathi
Ububanzi besayizi
I-ASTM A671: DN≥ 400 mm [16 in] kanye ne-WT ≥ 6 mm [1/4].
I-ASTM A672: DN≥400mm[16 in] kanye ne-WT≤75mm[3 in].
Ukuqhathanisa Kwekilasi
Amashubhu ahlukaniswa ngokohlobo lokwelashwa okushisa akutholayo phakathi nenqubo yokukhiqiza nokuthi ahlolwe yini nge-radiographical futhi ahlolwe ingcindezi.
I-ASTM A671 inohlu olubanzi lwezigaba kune-ASTM A672, ekhombisa indlela eguquguqukayo ye-A671 yokuhlukanisa izinto ezisetshenziswayo ze-brittleness kanye nezindlela zokwehluleka okungenzeka ezindaweni ezinezinga lokushisa eliphansi.
Lokhu kungenxa yokuthi izinga le-A671 linikeza ukuhlukaniswa okuningiliziwe kwezakhiwo ezisezingeni eliphansi eziklanyelwe ukuqinisekisa ukuthi ipayipi lizoqhubeka nokusebenza kahle ezimweni ezibandayo.Ngokuphambene, i-ASTM A672 igxile ekuzivumelaniseni nezingcindezi ezahlukene nezimo zokushisa ezimaphakathi, okubandakanya ukubhekana nokulawula izinhlobo ezahlukene zokucindezeleka.
Ukuqhathaniswa Kwebanga
Ihlukaniswa ngokohlobo lwepuleti elisetshenziselwa ukwakha amashubhu ensimbi.
Amabanga ahlukene amelela ukwakheka kwamakhemikhali okuhlukene kanye nezakhiwo zemishini zokucindezela okuhlukile nezimo zokushisa.
Amabanga ahlukene angase athinte izindleko nokusebenza kwephrojekthi.
Ukusebenzisa izinga eliphezulu lepayipi lensimbi ngokuvamile kusho izindleko zempahla ephakeme, kodwa ukukhetha impahla efanele kunganciphisa izindleko zokulungisa futhi kwandise impilo yesevisi ngokuhamba kwesikhathi.
Izicelo Ezithize
Izicelo ze-ASTM A671 Steel Tubing
Izinsizakalo ze-Cryogenic: okufana negesi yemvelo ewuketshezi (LNG) yokubamba kanye nezinhlelo zokuthutha, kudinga amashubhu akwazi ukugcina izakhiwo ezinhle zemishini emazingeni okushisa aphansi kakhulu.
Izinhlelo zokuhlinzeka ngegesi yedolobha: Kulezi zinhlelo, amapayipi angase adinge ukusebenza emazingeni okushisa aphansi asebusika, ngakho-ke amamaki athile epayipi lensimbi ayadingeka ukuze kuqinisekiswe ukuphepha nokusebenza kahle.
Izikhungo zokucubungula amakhemikhali: Ezinhlelweni zokucubungula amakhemikhali kanye nokupholisa, uketshezi oluthile luphathwa emazingeni okushisa aphansi kakhulu, adinga ukusetshenziswa kwepayipi le-ASTM A671 ukuvimbela ukugqashuka kwepayipi ngenxa yokonakala emazingeni okushisa aphansi.
Amapulatifomu angasogwini kanye nezindawo zokumba uwoyela: Lezi zikhungo zivame ukutholakala emanzini abandayo, futhi ukusetshenziswa kwepayipi i-A671 kuqinisekisa ukwethembeka nokuqina ezindaweni ezibandayo zasolwandle.
Izicelo ze-ASTM A672 Steel Tubing
Izitshalo zamandla: Ikakhulukazi ku-boiler kanye nezinhlelo zesitimu, lezi zinhlelo zidinga amapayipi amelana nezinga lokushisa eliphezulu nezingcindezi zokudluliselwa okuphephile kwesitimu namanzi ashisayo.
Izihlungi: Enqubweni yokucwenga, amapayipi ayadingeka ukuze kudluliswe ngempumelelo uwoyela ongahluziwe kanye nemikhiqizo phakathi kweziteshi ezihlukene zokucubungula, futhi lawa mapayipi kufanele akwazi ukumelana nezinga lokushisa eliphezulu kanye nokuhlaselwa ngamakhemikhali kwenqubo.
Imigqa Yokudluliswa Kokucindezela Okuphezulu: Imigqa yokudlulisa ingcindezi ephezulu isetshenziselwa ukuthutha uketshezi olunomfutho ophezulu noma amagesi afana negesi yemvelo namafutha.
I-Industrial Pressure Systems: Ekukhiqizeni nakwezinye izinhlelo zokusebenza zezimboni, izinhlelo eziningi zokucindezela zidinga amapayipi anokwethenjelwa aphezulu ukuze kuqinisekiswe ukuphepha kokukhiqiza nokusebenza kahle.
Ngokuhlukanisa phakathi kwalezi zakhiwo nezinhlelo zokusebenza, kuba sobala ukuthi nakuba amazinga epayipi e-ASTM A671 kanye ne-A672 edlula kwezinye izici zobuchwepheshe, asebenza ngezinhloso ezehlukene kuye ngezidingo ezithile zemvelo nokusebenza.
tag:astm a671, astm a672, efw, class, grade.
Isikhathi sokuthumela: Apr-23-2024