Mocheso oa khola o na le phello e ntle moleng

Ka mor'a ho qeta ho roala sekoahelo, metsi a pholileng ka har'a lesela ho fetola mocheso oa ho pota-potaα e hatelloa haholo.Tlas'a boholo ba nucleation ea eutectoid ferrite le kholo ea mocheso oa mocheso, ka mor'a ho phethoa ha maemo a pholileng a liehang haholo a ka nkoa a tšoana le ts'ebetso ea phetoho ea isothermal, ka hona, ho ama mocheso oa mocheso ho microstructure le thepa ea tšepe e utloisisoang e le phello ea liphetoho tsa mocheso. .Kahoo phello ea mocheso oa ho kopanya ho microstructure le thepa ea tšepe e bohlokoa haholo.Ha mocheso oa ho koloha o phahame, junifomo ea lijo-thollo tsa ferrite e mahoashe, e tlase haholo ka lebaka la phetoho ea tekanyo ea supercooling.α, lintlha tse fokolang tsa nucleation, haholo-holo meeling ea lijo-thollo tsa mathomoγ lijo-thollo, lebelo la ho hōla ho feta ferrite ka potlako e loketseng.Ha mocheso oa khoele o le tlase,α eketsa palo ea nucleation, kgolo lebelo liehisa ferrite, ferrite lijo-thollo boholo e ba nyenyane, empa e atisa ho diffuse pearlite e ntle.Ka ntlafatso ea lijo-thollo tse ntseng li fokotseha tsa mocheso oa ferrite, palo ea ferrite ea acicular e ile ea eketseha butle-butle, e ntse e eketseha pearlite, sebaka sa pearlite lamellar se fokotseha butle-butle.Kahoo, ka mocheso o tlase oa mocheso, index ea matla e tla eketseha, ha index ea polasetiki e fokotsehile hanyane, e leng likarolo tsa carbon le ferritic alloy ka lebaka laγ-α phetoho ea mohato ka mocheso o tlase o fumanoang ha litaba tsa maemo a holimo a holimo.Ha qetello ea mocheso o batang o le tlase haholo, karo-karolelano ea lihlahisoa e ntlafalitse sebopeho se kotsi ho, hobane karolo ea bobeli ea moloko oa bobeli, haholo-holo mahoashe bainite tšepe polasetiki index ea mosing.

Tšusumetso ea taolo ea mocheso oa li-coiling ho microstructure

Metallurgical mochine thepa, mocheso coiling le qete mocheso rolling, e le tshusumetso ya e khōlō tšepe microstructure, ke e 'ngoe ea determinants ea phethiloeng tšepe sebetsa, thepa ea mechine ea mekhahlelo ea bohlokoa tshebetso.Coiling taolo ea mocheso ha e le hantle ke tlhahiso ea hot-rolled strip tšepe rolling laoloa tsidifatso, le pholiso laoloa ka mor'a hore rolling lintlha tse ka sehloohong tse amang boleng ba lihlahisoa ke qalo ea tsidifatso (pholisa qala mocheso ha e le hantle qete mocheso) le ho qetela mocheso, tsidifatso. lebelo le tshoanano ya ho phodisa.Thempereichara ea ho koloha e lokela ho ba ka tlase ho 670℃, ka kakaretso 600 ~ 650℃.Ka har'a mekhahlelo ena ea mocheso, mochini oa metallurgical steel microstructure o phethetsoe, o ka lieha ho pholisa le ho fokotsa ho pholisa butle ho fokotsa khatello ea maikutlo ea kahare ea strip e boetse e na le molemo.Mocheso oa mocheso o phahameng haholo, o tla etsa hore ho be le recrystallization le ho pholile butle ka mor'a hore ho pota-potile ho hlahise ho bokellana ha lisele le li-carbide tsa lijo-thollo tse mahoashe, e leng se bakang ho senyeha ha thepa ea mochine le ho hlahisa letlalo la tšepe le thata, kahoo ho thata ho khetha.Haeba mocheso oa ho roala o le tlase haholo, ha ho phunyeha ho le thata, 'me ho ba teng ha khatello ea kelello e setseng, ho phutholoha habonolo, ho ama boleng ba sekhahla se phethiloeng;lehlakoreng le leng, mocheso coiling ha hoa lekana ho etsa supersaturated carbonitrides precipitation, amang tshebetso phuthoa.Ka hona, taolo ea mocheso oa coiling ka microstructure ea ka hare ka hare ho sebaka se hlalositsoeng ke tšepe, ke mehato e 'ngoe ea bohlokoa ea ho laola Metallurgical Machinery strip quality.Mefuta e fapaneng le litlhaloso tsa strip, mocheso oa eona oa ho qetela oa ho qetela ke 800℃, mocheso oa ho qetela oa tšepe ea silicon hangata ke 980℃, athe ho feta 100 m bolelele ba lirolara tsa tšepe tse hlahisang nako ea 5 ho ea ho 158 feela.Bakeng sa nako e khuts'oane hakana ho fokotsa mocheso oa strip 200 ~ 350℃, mocheso mahlaseli a le mong tšepe tlhahiso rollers le rolara mocheso ho ea tlhaho tsidifatso mokhoa ke ke ha khoneha, dipholo rolara e lokela ho ba haholo Ho Beha sebaka se selelele phahameng sebetsa hantle tsidifatso ea metsi bolela bakeng sa hlobolisa, ho qobelloa tsidifatso ea holim'a metsi, le ho laola ka nepo bongata ba metsi ho fihlela ditlhoko tsa mocheso wa ho koloha.Ts'ebetso e khethehileng ea taolo ea mocheso oa mocheso e thehiloe metjhini ea metallurgic ho latela litšoaneleho tse fapaneng tsa hlobo (thepa, boholo), le linaha tse fapaneng tsa sebaka se le seng (mocheso, lebelo), phallo ho pholletsa le bolelele ba lera le pholileng (ke hore, ho pholile ho bulehileng. Palo ea hlooho) ea phetoho e matla ea bolelele bohle ba likhoele ho ea sebakeng se itseng ho tloha holimo holimo ho nepahetseng Qian mocheso oa ho qetela oa ho bilika ho ea mocheso o matsoelintsoeke oa pholiso e potlakileng e hlokahalang.