Uma kuziwa ekwakheni nasekusetshenzisweni kwesakhiwo, ukukhetha kwempahla kubalulekile ukuze kuqinisekiswe ukuphepha, ukuqina, nokusebenza. Enye impahla ehlonishwa kakhulu embonini yile Insimbi ye-ASTM A252 yeBanga lesi-3. Lokhu kucaciswa kubaluleke kakhulu ekwakhiweni kwezinqwaba zamapayipi ezisetshenziswa ezisekelweni ezijulile, okwenza zibe yingxenye ebalulekile emisebenzini ehlukahlukene yokwakha.
I-ASTM A252 iwumgomo ojwayelekile othuthukiswe yi-American Society for Testing and Materials (ASTM) echaza izidingo ze-welded nezingenamthungo.ipayipi lensimbiizinqwaba. Ibanga lesi-3 yizinga eliphezulu lamandla kulokhu kucaciswa, elinamandla amancane okukhiqiza angama-50,000 psi (345 MPa). Lokhu kuyenza ilungele izinhlelo zokusebenza ezidinga umthamo ophezulu wokuthwala umthwalo kanye nokumelana nokuguqulwa.
Enye yezinzuzo eziyinhloko ze-ASTM A252 Grade 3 ukushisela kwayo okuhle kakhulu, okuvumela ukwakhiwa nokufakwa okusebenzayo. Ukwakheka kwamakhemikhali kwale nsimbi kuhlanganisa izakhi ezifana nekhabhoni, i-manganese, ne-silicon, ezinomthelela emandleni nasekuqineni kwayo. Ngaphezu kwalokho, impahla ingamelana nezimo zemvelo ezinzima, ikwenze ifanelekele ukusetshenziswa olwandle nakwezinye izindawo eziyinselele.
Eqinisweni, i-ASTM A252 Grade 3 ivamise ukusetshenziswa ekwakhiweni kwamabhuloho, izakhiwo, kanye namanye amaphrojekthi engqalasizinda adinga izisekelo ezijulile. Ikhono layo lokusekela imithwalo esindayo ngenkathi igcina ubuqotho besakhiwo kubalulekile ekuphileni isikhathi eside nokuphepha kwalezi zakhiwo.
Ngokufigqiwe,I-ASTM A252 Ibanga lesi-3insimbi iyinto ebalulekile embonini yezokwakha, ehlinzeka ngamandla nokuqina okudingekayo ekusetshenzisweni kwesisekelo esijulile. Ukuqonda izici zayo nezinzuzo kungasiza onjiniyela nosonkontileka benze izinqumo ezinolwazi lapho bekhetha izinto zokusebenza zamaphrojekthi wabo, ekugcineni kuphumele ezinhlakeni eziphephile, nezithembekile.
Isikhathi sokuthumela: Nov-23-2024