Ho ea ka litloaelo tsa indasteri lefapheng la mechini e boima, mochini oa mahala o hlahisoang o sebelisa mechine ea hydraulic e nang le matla a ho etsa lithane tse fetang 1000 e ka bitsoa forging e kholo. Ho ipapisitsoe le matla a ho qhekella a mochini oa khatiso oa hydraulic bakeng sa ho forging mahala, sena se batla se tšoana le li-shaft forgings tse boima ba lithane tse fetang 5 le disc forgings tse boima ba lithane tse 2.
Litšobotsi tse ka sehloohong le tsa motheo tsa forgings tse kholo ke litekanyo tsa tsona tse kholo le boima bo boima. Mohlala, boholo ba 600MW jenereithara ea jenereithara ea mouoane ke φ1280mm×16310mm, boima ba lithane tse 111.5. Boholo ba 2200-2400MW jenereithara ea jenereithara ea mouoane ke φ1808mm×16880mm, boima ba lithane tse 247.
Ka lebaka la boholo ba tsona le boima ba tsona, li-forging tse kholo li tlameha ho etsoa ka ho toba ho tloha ho li-ingots tse kholo tsa tšepe. Hoa tsebahala hore li-ingots tse kholo tsa tšepe hangata li na le litaba tse tebileng tse kang karohano, porosity, shrinkage, non-metallic inclusions, le mefuta e sa tšoaneng ea sebopeho se sa tšoaneng. Li boetse li na le maemo a phahameng a khase, 'me ho thata ho tlosa mefokolo ena nakong ea ts'ebetso e latelang ea ho qhekella. Ka lebaka leo, ho se tšoane ho hoholo ha lik'hemik'hale, mefokolo e fapaneng ea sebopeho, le maemo a phahameng a khase e kotsi hangata li teng meahong e meholo. Sena se etsa hore ts'ebetso ea kalafo ea mocheso bakeng sa forgings e kholo e rarahane, e je nako ebile e theko e boima. Ka hona, tlhokomelo e hlokolosi e tlameha ho lefshoa nakong ea phekolo ea mocheso.
Ho feta moo, ka lebaka la boholo ba tsona le boima ba tsona bo boholo, li-forging tse kholo li na le matla a phahameng haholo a mocheso, e leng se etsang hore ho se ke ha khoneha ho finyella litekanyetso tse phahameng tsa ho futhumatsa le ho pholisa nakong ea mehato ea phekolo ea mocheso. Ka hona, bakeng sa forgings e kholo e hlokang liphetoho tse kholo mohahong oa ka hare ka ho futhumatsa kapa ho tima ho finyella litlhoko tse phahameng tsa ts'ebetso le boleng, litšepe tse tsitsitseng haholo tsa supercooled austenite le tse thata tse phahameng li tlameha ho sebelisoa. Mehlala e kenyeletsa Ni-Cr-Mo, Ni-Mo-V, le Ni-Cr-Mo-V series steels. Leha ho le joalo, litšepe tse nang le botsitso bo phahameng ba supercooled austenite li na le tšekamelo ea ho ja lefa la meralo, e bakang boholo ba lijo-thollo bo mahoashe le bo sa lekaneng ka har'a litšepe tsa alloy. Ho rarolla bothata bona, hangata ho hlokahala mekhoa e khethehileng le e rarahaneng ea phekolo ea mocheso.
Haeba u hloka lintlha tse ling mabapi le WELONG forgings bakeng sa turbine ea mouoane le jenereithara, ka mosa ikutloe u lokolohile ho ikopanya le uena.
Nako ea poso: Jan-23-2024
