Imilinganiselo emihlanu yokukhusela ubushushu obuphantsi betanki yokugcina ulwelo lwenitrogen
Ulwakhiwo olufanelekileyo kunye nenkqubo yokuwelda iyakwamkelwa kwitanki yokugcina initrogen engamanzi. Ukugxininiswa koxinzelelo olubangelwa yi-welds eninzi kwaye igxininiswe kakhulu, i-welds asymmetric, i-welds enqamlekileyo kunye nolandelelwano lwe-welding olungenangqiqo luya kugwenywa kwisakhiwo. Ngexesha lokwenziwa kwetanki yokugcina i-nitrogen yolwelo lobushushu obuphantsi, ukuwelda okuqinileyo kuya kuthintelwa ukuthintela iziphene ezinje nge-undercut kunye nomphetho ogxadazayo, ukuze kuqinisekiswe umphezulu ogudileyo odibana nendawo ephakathi kangangoko kunokwenzeka. Emva kokuvelisa, unyango lwe-annealing ubushushu kufuneka lwenziwe ukususa uxinzelelo lobushushu obushiyekileyo emva kwe-welding. I-PWHT echanekileyo inokunciphisa kakhulu uxinzelelo olushiyekileyo kwinkqubo yokuvelisa kunye nobunzima obuphezulu be-HAZ.
Jonga Ngakumbi