Phekolo ea ho tima le ho futhumatsa e bua ka mokhoa o habeli oa kalafo ea mocheso oa ho tima le mocheso o phahameng oa mocheso, o ikemiselitseng ho netefatsa hore sesebelisoa se na le thepa e ntle ea mochini. Mocheso o phahameng oa mocheso o bolela ho futhumatsa pakeng tsa 500-650 ℃. Likarolo tse ngata tse tingoeng le tse halefileng li sebetsa tlas'a meroalo e matla e batlang e le matla, 'me li na le litlamorao tsa tsitsipano, khatello, ho kobeha, torsion kapa ho kuta. Likarolo tse ling li boetse li na le likhohlano, tse hlokang hore ho be le khanyetso e itseng, joalo-joalo. Ka bokhutšoanyane, likarolo li sebetsa tlas'a likhatello tse sa tšoaneng tse nang le likarolo tse ngata. Mefuta ena ea likarolo ke likarolo tsa sebopeho sa mechini le metjhini e fapaneng, joalo ka shafts, lithupa tse hokelang, lithupa, likere, joalo-joalo, 'me li sebelisoa haholo indastering ea tlhahiso joalo ka lisebelisoa tsa mochini, makoloi le literekere. Haholo-holo bakeng sa likarolo tse kholo tsa tlhahiso ea mochini o boima, kalafo ea ho tima le ho futhumatsa e sebelisoa hangata. Ka hona, kalafo ea ho tima le ho futhumatsa e phetha karolo ea bohlokoa haholo kalafong ea mocheso. Lihlahisoa tsa mechine, litlhoko tsa ts'ebetso bakeng sa likarolo tse tingoeng le tse halefileng ha li tšoane ka ho feletseng ka lebaka la maemo a bona a fapaneng a khatello ea kelello. Likarolo tse fapaneng tse timang le tse halefileng li lokela ho ba le thepa e phethahetseng ea mochini, e leng motsoako o loketseng oa matla a phahameng le boima bo phahameng, ho netefatsa ts'ebetso ea nako e telele ea likarolo.
Ho tima ke mohato oa pele oa ts'ebetso, 'me mocheso o futhumatsang o itšetlehile ka ho hlophisoa ha tšepe, ha mochine oa ho tima o khethoa o itšetlehile ka ho thatafala ha tšepe le boholo ba karolo ea tšepe. Ka mor'a ho tima, khatello ea ka hare ea tšepe e phahame ebile e brittle, 'me ho futhumatsa hoa hlokahala ho felisa khatello ea kelello, ho eketsa boima le ho fetola matla. Tempering ke mokhoa oa bohlokoa ka ho fetisisa bakeng sa ho tloaeleha thepa ea mechine ea tšepe e tingoeng le e halefileng. Mokokotlo oa thepa ea mechine ea litšepe tse fapa-fapaneng tse fetohang ka mocheso oa mocheso, o tsejoang hape ka hore ke "curve" ea tšepe, e ka sebelisoa e le motheo oa ho khetha mocheso oa mocheso. Bakeng sa mocheso o phahameng oa mocheso oa li-alloy tse itseng tse tingoeng le tse halefileng, tlhokomelo e lokela ho lefshoa ho thibela ho hlaha ha mofuta oa bobeli oa bohale ho netefatsa hore tšepe e sebetsa hantle. [2]
Phekolo ea ho tima le ho futhumatsa e sebelisoa haholo bakeng sa likarolo tsa meralo tse hlokang ts'ebetso e phethahetseng, haholo-holo tse sebetsang tlas'a meroalo e fapanyetsanang, joalo ka li-shafts tsa likoloi, likere, li-turbine shafts tsa lienjine tsa lifofane, li-compressor discs, joalo-joalo. li atisa ho tima le ho halefa pele ho quenching holim'a metsi ho fumana sorbate e ntle le e ts'oanang, e leng molemo bakeng sa lera le thatafatsang holim'a metsi 'me e ka boela ea finyella thepa e ntle e pharaletseng ea mochine bohareng. Likarolo tsa nitride li fumana kalafo ea ho tima le ho futhumatsa pele ho nitriding, e ka ntlafatsang ts'ebetso ea tšepe le ho lokisa sebopeho sa nitriding. Ho finyella boreleli bo phahameng ba sesebelisoa sa ho lekanya pele ho tima, ho felisa khatello ea kelello e bakoang ke ho sebetsa ka thata, ho fokotsa deformation ea quenching, 'me ho etsa hore ho be thata ka mor'a ho tima holimo le ho ts'oara, phekolo ea ho tima le ea tempering e ka etsoa pele ho etsoa ka mokhoa o nepahetseng. Bakeng sa litšepe tsa lisebelisoa tse nang le li-carbides tsa marang-rang kapa lijo-thollo tse mahoashe ka mor'a ho ferekanngoa, ho tima le ho futhumatsa ho ka sebelisoa ho felisa marang-rang a carbide le ho hloekisa lijo-thollo, ha spheroid zing ea carbides ho ntlafatsa machinability le ho lokisa microstructure bakeng sa phekolo ea ho qetela ea mocheso.
Lengolo-tsoibila:oiltools14@welongpost.com
Mohau Ma
Nako ea poso: Oct-31-2023
