Hot-rolled ke eng, serame ke eng, le phapang lipakeng tsa tse peli?

 

1. Ho Rolling ho Chesang
Tsoela pele ho lahla li-slabs kapa li-slabs tse qalang e le lisebelisoa tse tala, tse futhumetseng ka sebōpi se futhumatsang mohato, khatello e phahameng ea metsi dephosphorization ka leloala roughing, lintho tse bonahalang tse roughing ka ho itšeha hlooho, mohatla, 'me joale ka leloala ho qetela, ho kenngwa tshebetsong ha khomphuta-laoloang rolling, rolling ho qetela ke ka mor'a hore laminar phallang tsidifatso ea mochine (komporo-laola-moriri o otlolohileng) ho laola moriri o otlolohileng. Hlooho le mohatla oa moriri o otlolohileng kela hangata leleme le fishtail sebopeho, botenya, bophara ho nepahala e futsanehile, hangata ho na le leqhubu-e bōpehileng joaloka bohale, mene ka bohale, tora le mefokolo e meng. Boima ba eona bo boima, bophara bo ka hare ba tšepe ea tšepe ke 760mm. (Indasteri ea ho etsa liphaephe ka kakaretso e rata ho e sebelisa.) Moriri o otlolohileng oa moriri ka ho kuta hlooho, mohatla, ho itšeha le ho feta ho otlolla, ho lekanya le ho sebetsa ka mokhoa o mong oa ho qetela, ebe o seha poleiti kapa o roala hape, ke hore e tla ba: poleiti ea tšepe e chesang e chesang, e bataletseng e chesang e kolobisitsoeng ka tšepe, longitudinal cut strip le lihlahisoa tse ling. Hot phuthoa qetellang dikhoele haeba pickling ho tlosa oxide letlalo le oiled ka chesang phuthoa pickled coil. Setšoantšo se ka tlase se bontšasekoele se biditsoeng se chesang.

 

2. Mohatsela O Qetsitsoe
Li-coil tse entsoeng ka tšepe tse chesang e le lisebelisoa tse tala, ka mor'a hore li tlose letlalo la oxide bakeng sa ho phutholla ho batang, sehlahisoa se felileng bakeng sa molumo o thata, ka lebaka la mocheso o sa khaotseng o bakoang ke ho thatafala ha molumo o thata oa matla, boima, boima le lipontšo tsa polasetiki li fokotseha, ho senyeha ha ts'ebetso ea stamping, ho ka sebelisoa feela bakeng sa deformation e bonolo ea likarolo. Likhoele tse thata tse rokotsoeng li ka sebelisoa e le lisebelisoa tse tala bakeng sa semela sa hot-dip galvanizing, hobane hot-dip galvanizing unit e kentsoe ka mohala o annealing. Boima ba khoele e thata ka kakaretso ke lithane tse 6 ~ 13.5, bophara bo kahare ba khoele ke 610mm. ka kakaretso batang phuthoa poleiti, coil lokela ho tsoela pele annealing (CAPL yuniti) kapa hooded sebōpi de-annealing kalafo, ho felisa a batang thatathata le rolling khatello ea kelello, ho finyella thepa ea mechine e boletsoeng ka litsupa standard. Cold rolled steel plate surface quality, chebahalo, ho nepahala ha dimensional ho molemo ho feta hot rolled plate. Setšoantšo se latelang se bontšasekoele se batang.

 

Phapang e kholo pakeng tsabatang rolled vs hot roloe tšepee itšetlehile ka theknoloji ea ho sebetsa, boholo ba ts'ebeliso, thepa ea mochine le boleng ba bokaholimo, hammoho le phapang ea theko. Se latelang ke kenyelletso e qaqileng:
Ho sebetsa. Ho roala ho chesang ho etsoa ka mocheso o phahameng, ha ho bata ho etsoa mocheso oa kamore. Mocheso o chesang o phalla ka holim'a mocheso oa crystallization, ha mocheso o batang o ntse o theoha ka tlas'a mocheso oa crystallization.

 
Lisebelisoa. Litšepe tse chesang li sebelisoa haholo-holo meahong ea tšepe kapa likarolo tsa mochini, ho kenyeletsoa kaho ea borokho, ha litšepe tse batang li sebelisoa haholo indastering ea likoloi kapa lisebelisoa tse nyane, metjhini e hlatsoang, lihatsetsi, joalo-joalo, ho kenyeletsoa thepa ea kaho.

 
Thepa ea mechine. Cold phuthoa thepa ea mechine e hangata molemo ho feta chesang phuthoa, hobane serame phuthoa tshebetso hlahisa sephetho thatafatsa kapa batang thatafatsa, ho fellang ka batang phuthoa lakane holim'a thatafala le matla a phahame, empa toughness e ka tlaase, ha thepa ea mechine ea lakane chesang phuthoa hole ka tlaase ho moo batang phuthoa lakane, empa e na le toughness molemo le ductility.

 
Boleng ba bokaholimo. Boleng ba sebopeho sa holim'a tšepe e pholileng e batang e tla ba betere ho feta tšepe e kolobisitsoeng e chesang, lihlahisoa tse kolobisitsoeng tse batang li thata ebile ha li na ductile, ha lihlahisoa tse chesang li na le bokaholimo bo thata, bo entsoeng ka mokhoa o hlakileng.

 
Botenya ba tlhaloso. Likhoele tse batang hangata li tšesaane ho feta likhoele tse kolobisitsoeng tse chesang, ka botenya ba likhoele tse kolobisitsoeng tse batang ho tloha ho limilimithara tse 0.3 ho isa ho tse 3.5, ha li-coil tse bilikisitsoeng tse chesang li tloha ho 1.2 ho isa ho 25.4 limilimithara.

Theko: Ka tloaelo, serame se kolobisitsoeng se bitsa chelete e ngata ho feta ho chesa. Lebaka ke hobane ho roala ho batang ho hloka tšebeliso ea lisebelisoa tse tsoetseng pele le theknoloji e rarahaneng ea ts'ebetso, 'me phekolo e batang e ka fumana phello e ntle ea phekolo ea holim'a metsi, kahoo boleng ba lihlahisoa tse pholileng ka kakaretso bo phahame, theko e holimo ka tsela e tšoanang. Ho phaella moo, litšepe tse batang ka mokhoa oa tlhahiso li hloka theknoloji e thata ea ho sebetsa le bothata bo phahameng ba ho sebetsa, thepa ea tlhahiso, meqolo le litlhoko tse ling tsa thepa li phahame, tse tla lebisa ho phahama ha litšenyehelo tsa tlhahiso.