Gabatarwa
Kasa hot rolled (HR) da cold rolled (CR) ne biyu ayyuka mai kewaye na kasa wanda suna zuciya different, yana abubuwa da cikin tsarinna da applications.
Kasa Hot Rolled (HR)
- Tsarin samarwa : Kasa HR ya kawo su a cikin hanyar mai saita ta tare da recrystallization point, kafin kawai 900°C.
- Tsayawa : Yana babban finish na rubutu, bayan precision don dimensions, da yield strength na kawai (kafin kawai 210 MPa).
- Aiki : Ya so da use in construction beams, rail tracks, da sheet metal. Standard thickness ranges from 1.2mm to 25mm.
Cold Rolled Steel (CR)
- Tsarin samarwa : Lissafi CR yana da fatan suka yi a cikin hanyar wataƙi kuma ya kamata su a cikin hanyar wataƙi. Kawai, wannan ya baya masu amfani da rubutun daidai kuma bayyana naɗa mai tsawo.
- Tsayawa : Lissafi CR ya zoje amfani da rubutun daidai (kuma 275 MPa) kuma bayyana naɗa mai gaba.
- Aiki : Yanayi ne kan kewaye a matsayin panel automotive, sayyari na gida, kuma furniche. Rubutun standard yana gabatar da 0.3mm ta 3.5mm.
Farkoyar Kullum
- Finishing Sharin : Lissafi HR yana naɗa mai tsawo, kuma lissafi CR yana naɗa mai dadi kuma mai sauran.
- Amfani da Rubutun : Lissafi CR ya zoje amfani da faruwarwa daidai kuma amfani da precision a cikin rubutun, width, kuma flatness.
- Tsayyar Mutane : Lissafi CR yana bayyana mai shugaban kuma hardness kuma lissafi HR.
- Farashi : Lissafi HR ya fi sannan kuma da hanyar wataƙi mai sauran.
Kammalawa
Ana bukatar da kuma wani a cikin hot rolled nar cold rolled steel yana gaskiya da masu aiki. HR steel yana maganin daidai don aikin kula mai amfani da rubutu, kamar CR steel yana maganin daidai don aikin kula ba da rubutu ba mai amfani da gabatar gabata na tsarin kasance.