Chii chinopisa-chakakungurutswa, chii chinotonhora-chakakungurutswa, uye musiyano pakati pezviviri?

 

1. Hot Rolling
Kuenderera mberi kukanda slabs kana yekutanga rolling slabs seyakagadzirwa, inopisa nenhanho yekudziya choto, yakakwira-kumanikidza mvura dephosphorization muhuyo inoputika, iyo roughing zvinhu nekucheka musoro, muswe, uye ipapo muguyo rekupedzisa, kuisirwa kwekombuta-inodzorwa rolling, yekupedzisira rolling iyo iri mushure melaminar kuyerera kutonhora kutonhora (kombuta-inodzorwa kutonhora kwebvudzi). Musoro nemuswe weiyo yakatwasuka bvudzi coil kazhinji rurimi uye fishtail chimiro, ukobvu, hupamhi hwechokwadi husina kunaka, pane kazhinji kacho mafungu-akaumbwa mupendero, akapeta mupendero, shongwe uye humwe hurema. Huremu hwayo hunorema, dhayamita yemukati yesimbi coil ndeye 760mm. (General pombi kugadzira indasitiri vanoda kushandisa.) Iyo yakatwasuka bvudzi coil nekucheka musoro, muswe, kucheka kumucheto uye kupfuura imwe kutwasanudza, kuenzana uye kumwe kupedzisa mutsara kugadzirisa, uye ipapo cheka ndiro kana re-roll, ndiko kuva: hot yakakungurutswa simbi ndiro, sandara inopisa yakakungurutswa simbi coils, longitudinal cut strip uye zvimwe zvigadzirwa. Hot akakungurutswa kupedza coils kana pickling kubvisa oxide ganda uye oiled kupinda inopisa akakungurutswa pickled coil. Mufananidzo uri pasi apa unoratidzainopisa yakakungurutswa coil.

 

2. Cold Rolled
Kupisa kwakatenderedzwa simbi koiri semidziyo yakabikwa, mushure mekunhonga kubvisa ganda reoxide kuti ritonhore, chigadzirwa chakapedzwa cheiyo yakakwenenzverwa vhoriyamu, nekuda kwekuenderera kunotonhora deformation inokonzerwa nekutonhora kuomarara kweiyo yakaumburuka yakaoma vhoriyamu yesimba, kuomarara, kuomarara uye zviratidzo zvepurasitiki zvinodzikira, kutsika kwekuita kuderera, kunogona chete kushandiswa kune nyore deformation yezvikamu. Coil yakaoma yakakungurutswa inogona kushandiswa semidziyo yekupisa-dip galvanizing chirimwa, nekuti hot-dip galvanizing unit yakagadzikwa ine annealing line. Yakakungurutswa yakaoma coil uremu kazhinji 6 ~ 13.5 matani, iyo yemukati dhayamita yecoil ndeye 610mm. general inotonhora yakakungurutswa ndiro, coil inofanirwa kuenderera mberi annealing (CAPL unit) kana hooded choto de-annealing kurapwa, kubvisa kutonhora kuomarara uye kutenderedza kushushikana, kuzadzisa ma mechanic zvimiro zvakatsanangurwa mune yakajairwa zviratidzo. Cold yakakungurutswa simbi ndiro yepamusoro mhando, chitarisiko, dimensional kunyatsoita zviri nani pane inopisa yakakungurutswa ndiro. Mufananidzo unotevera unoratidzainotonhora yakakungurutswa coil.

 

Musiyano mukuru pakatiinotonhora yakakungurutswa vs inopisa yakakungurutswa simbiiri mune tekinoroji yekugadzirisa, chiyero chekushandisa, mechanical zvivakwa uye pamusoro pemhando, pamwe nekusiyana kwemitengo. Izvi zvinotevera sumo yakadzama:
Processing. Kupisa kunopisa kunoitwa pakupisa kwakanyanya, nepo kutonhora kutenderedzwa kunoitwa pakupisa kwekamuri. Kupisa kutenderedza kuri kutenderera pamusoro petembiricha yekristallisation, nepo kutonhora kutenderedza kuri kuyerera pazasi petembiricha yekristaro.

 
Applications. Simbi inopisa yakakungurutswa inonyanya kushandiswa muzvivakwa zvesimbi kana zvikamu zvemakanika, kusanganisira kuvakwa kwebhiriji, nepo simbi inotonhora yakatenderedzwa inonyanya kushandiswa muindasitiri yemotokari kana midziyo midiki, michina yekuwachisa, mafiriji, nezvimwewo, kusanganisira zvekuvakisa.

 
Mechanical properties. Cold rolled mechanical properties inowanzova nani pane inopisa yakakungurutswa, nekuti iyo inotonhora yekukungurutsira inoburitsa kuomesa kana kutonhora kuomesa, zvichikonzera kutonhora kwakatenderedzwa pepa kuoma uye kusimba kwakakwira, asi kuoma kwacho kwakadzikira, nepo michina yemashizha inopisa yakakungurutswa ishoma pane inotonhora yakakungurutswa pepa, asi ine kusimba kuri nani uye ductility.

 
Surface quality. Hunhu hwechimiro chepamusoro chesimbi inotonhora inokungurutswa ichave iri nani pane inopisa yakakungurutswa simbi, inotonhora yakakungurutswa zvigadzirwa zvakaoma uye zvishoma ductile, nepo zvinopisa zvakakungurutswa zvine rougher, textured surface.

 
Specification ukobvu. Makoiri anotonhora anokungurutswa anowanzo kutetepa pane anopisa akakungurutswa, aine ukobvu hwemakoiri anotonhora akakungurutswa kubva pa 0.3 kusvika 3.5 millimeters, nepo anopisa akakungurutswa makoiri anotangira pa1.2 kusvika 25.4 millimita.

Mutengo: Kazhinji, kutonhora kwakakungurutswa kunodhura zvishoma pane inopisa yakakungurutswa. Izvi zvinodaro nekuti kutonhora kutenderedza kunoda kushandiswa kwemidziyo yakaomesesa yekugadzirisa uye yakanyanya kuomarara tekinoroji, uye kutonhora kutenderedza kurapwa kunogona kuwana zvirinani kurapwa kwepamusoro, saka mhando yezvigadzirwa zvinotonhora zvakatenderedzwa zvinowanzokwira, mutengo unokwira zvinoenderana. Pamusoro pezvo, simbi inotonhora yakatenderedzwa mukugadzira inoda yakawedzera kuomarara tekinoroji uye yakanyanya kuomerwa nekugadzirisa, michina yekugadzira, rolls uye zvimwe zvinodiwa zvemidziyo zvakakwira, izvo zvinozotungamira mukukwira kwemitengo yekugadzira.