Ho bilika ho chesang
Ho roala ho chesang ho amana le serame se batang, se thellang ka tlase ho mocheso oa recrystallisation, ha mocheso o chesang o ntse o phalla ka holim'a mocheso oa recrystallisation.
Melemo:
E ka senya ho lahla li-ingots tsa tšepe, ho hloekisa lijo-thollo tsa tšepe, le ho felisa mefokolo ea microstructural, e le hore mokhatlo oa tšepe o be o teteaneng, thepa ea mechine e ntlafatsoa.Ntlafatso ena e haholo-holo ka tataiso ea ho roala, e le hore tšepe ha e sa le isotropic ho isa tekanyong e itseng;li-bubble, mapetsong le ho hlephileng tse entsoeng nakong ea ho lahla le tsona li ka kopanngoa hammoho tlas'a mocheso o phahameng le khatello.
Mefokolo:
1. Ka mor'a ho chesa ho chesang, li-inclusions tse se nang tšepe ka har'a tšepe (haholo-holo sulphides le oxides, le silicates) li hatelloa ka maqephe a tšesaane 'me delamination (lamination) e etsahala.Delamination e senya haholo thepa ea tšepe ka tsitsipano ho latela tataiso ea botenya, 'me ho na le kotsi ea ho rusolla ha interlaminar nakong ea shrinkage ea weld.Mathata a lehae a bakoang ke shrinkage ea weld hangata a fihla makhetlo a 'maloa ho feta tekanyo ea lihlahisoa 'me a maholo ho feta a susumetsoang ke ho laela.
2. Khatello e setseng e bakoang ke ho tsidifala ho sa lekanang.Likhatello tse setseng ke likhatello tsa ka hare tsa ho ikemela ha ho se na matla a ka ntle, likarolo tse fapa-fapaneng tsa tšepe e chesang e chesang li na le likhatello tse joalo tsa masala, ka kakaretso boholo ba karolo ea tšepe e kholoanyane, ho ba le likhatello tse ngata tse setseng.Le hoja likhatello tse setseng li ikemela, li ntse li e-na le phello mosebetsing oa setho sa tšepe tlas'a matla a ka ntle.Tse kang deformation, botsitso, ho hanyetsa mokhathala le likarolo tse ling li ka ba le phello e mpe.
3. Lihlahisoa tsa tšepe tse chesang tse chesang ha li bonolo ho laola ka bophara le bophara ba bohale.Re tloaelane le ho atolosoa ha mocheso le ho fokotseha, ha ho qala ha mocheso o phutholohile esita le haeba bolelele le botenya li fihla ho maemo a tloaelehileng, pholiso ea ho qetela e ntse e tla hlaha phapang e itseng e mpe, bophara ba lehlakoreng le leng le lebe, le ts'ebetso e teteaneng. ea tse hlakileng haholoanyane.Ke ka lebaka leo ho ke keng ha khoneha ho nepahala haholo ka bophara, botenya, bolelele, mahlakoreng le moeli oa tšepe e kholo.
Ho pitikoloha ho batang
Ho roala ka tlas'a mocheso oa recrystallization ho bitsoa ho roala ho batang, hangata ho sebelisoa li-coil tse chesang tsa tšepe e le lisebelisoa tse tala, ka mor'a ho pickling ho tlosa letlalo la oxidation bakeng sa serame se sa khaotseng, sehlahisoa se phethiloeng se phuthoa ka thata, ka lebaka la deformation e tsoelang pele e batang e bakoang ke ho thatafala ha mosebetsi o batang. matla a coil a thata, boima, ho tiea le lipontšo tsa polasetiki li fokotseha, kahoo ts'ebetso ea litempe e tla senyeha, e ka sebelisoa feela bakeng sa deformation e bonolo ea likarolo.Cold rolled hangata e annealed.
Likhoele tse tšetsoeng ka thata li ka sebelisoa e le lisebelisoa tse tala limela tse futhumatsang tsa dip dip galvanizing, kaha li-hot dip galvanizing units li na le likhoele tse koalang.
Likhoele tse thata tse thatetsoeng hangata li boima ba lithane tse 20-40 'me li-coil li lula li phuthoa mochesong oa kamore khahlano le li-pickled tse chesang.
Litšobotsi tsa Sehlahisoa: Hobane ha e koaletsoe, boima ba eona bo phahame haholo 'me machinability ea eona e fokola haholo, kahoo e ka kobeha ka tsela e bonolo e ka tlase ho likhato tse 90 (perpendicular to the roll orientation).Ka mantsoe a bonolo, ho roala ho batang ke mokhoa oa ho roala motheong oa li-coil tse chesang tse chesang, tseo ka kakaretso e leng mokhoa oa ho chesa - pickling - phosphating - saponification - batang.
Cold-rolled e sebetsoa ho tloha lakane e chesang e chesang mocheso oa kamore, le hoja ts'ebetsong ka lebaka la ho roala ho tla boela ho etse hore poleiti ea tšepe e futhumale, empa leha ho le joalo e bitsoa serame se pholileng.E le chesang phuthoa ka mor'a tsoelang pele batang deformation le serame phuthoa ka thepa ea mechine ea mafutsana, ka thata haholo, kahoo e lokela ho annealed ho tsosolosa thepa ea eona ea mechine, ha ho annealing bitsoa rolling hard volume.Lirolo tse thata tse rolotsoeng hangata li sebelisoa ho etsa ntle le ho kobeha, lihlahisoa tse otlolohileng, 1.0 ka tlase ho botenya ba mahlohonolo a kobehang ka mahlakore ka bobeli kapa mahlakoreng a mane.
Ts'ebetsong e batang ea ho roala o tlameha ho sebelisa oli e pholileng, melemo ea ho sebelisa oli e batang ke:
1.Ka katleho fokotsa coefficient ea likhohlano, fana ka matla a ho roala a tsamaisanang, ho theola tšebeliso e tlase ea matla, ho fumana litekanyo tse khotsofatsang tsa rolling;
2. Fana ka holimo holim'a khanya, rolling lieha botenya junifomo;
3.Tlhaloso e ntle ea ho pholisa, e ka tlosa mocheso o pholileng ka potlako, ho sireletsa li-roll le likarolo tse pholileng.Ts'ebetso e ntle ea annealing, e ke ke ea hlahisa ts'ebetso ea ho chesa oli;
4.E na le ts'ebetso ea nako e khutšoanyane e khahlanong le mafome, e ka fana ka tšireletso ea nakoana e khahlanong le mafome bakeng sa likarolo tse pota-potileng.
Phapang pakeng tsa serame-rollo le hot-rolled:
1.Ctšepe ea khale e entsoeng ka tšepe e lumella ho ts'oaroa ha sebaka sa cross-section e le hore bokhoni ba ho jara bareng ka mor'a hore buckling bo sebelisoe ka botlalo;athe likarolo tse kolobisitsoeng tse chesang ha li lumelle ho koaheloa ha sebaka sa marang-rang ho etsahala.
2. Hlikarolo tsa ot-rolled le likarolo tse batang tsa khatello ea tšepe e setseng e hlahisoang ke mabaka a sa tšoaneng, kahoo ho ajoa ha karolo ea sefapano ho boetse ho fapane haholo.Kabo ea khatello ea maikutlo e setseng karolong e ka thōko ea likarolo tse batang tse nang le marako a tšesaane ke mofuta oa ho khumama, ha ho ajoa ha khatello e setseng karolong e ka holimo ea likarolo tse chesang tse chesang kapa tse nang le li-welded ke mofuta oa filimi.
3.To ile a lokolla torsional stiffness ea likarolo tse chesang tse chesang li phahame ho feta tsa likarolo tse batang, kahoo khanyetso ea torsional ea likarolo tse chesang tse chesang e molemo ho feta ea likarolo tse batang.
Nako ea poso: Feb-09-2023