Malleable Cam khwb cia hlau

Yog li ntawd, nws muaj pes tsawg leeg zoo ib yam li dawb cam khwb cia hlau, nrog me ntsis ntau dua cov pa roj carbon thiab silicon. Malleable hlau muaj graphite nodules uas tsis yog spherical tiag tiag li lawv nyob rau hauv ductile hlau vim lawv yog tsim los ntawm kev kho cua sov es tsis yog thaum lub sij hawm txias los ntawm yaj. Malleable hlau yog tsim los ntawm thawj casting ib tug dawb hlau kom tsis txhob flakes graphite, thiab tag nrho cov undissolved carbon yog nyob rau hauv daim ntawv ntawm hlau carbide. Malleable hlau pib ua cov hlau dawb uas tau kho cua sov rau ib hnub lossis ob hnub ntawm 950 ° C (1,740 ° F) thiab tom qab ntawd txias dhau ib hnub lossis ob hnub. Yog li ntawd, cov pa roj carbon hauv hlau carbide hloov mus rau hauv graphite nodules nyob ib puag ncig los ntawm ferrite lossis pearlite matrix, nyob ntawm qhov txias txias. Cov txheej txheem qeeb tso cai rau qhov nro saum npoo los tsim cov graphite nodules es tsis yog flakes. Malleable hlau, zoo li cov hlau tsis muaj hlau, muaj qhov muaj zog thiab tawv heev vim nws sib txuas cov nodular graphite thiab qis carbon hlau matrix. Zoo li cov hlau nplaum, cov hlau tsis muaj hlau kuj tuaj yeem ua rau muaj kev tiv thaiv corrosion thiab zoo heev machinability. Malleable hlau qhov zoo damping muaj peev xwm thiab qaug zog zog kuj tseem muaj txiaj ntsig rau kev pabcuam ntev hauv qhov kev ntxhov siab heev. Muaj ob hom ferritic malleable hlau: blackheart thiab whiteheart.

Nws yog feem ntau siv rau me me castings xav tau zoo tensile lub zog thiab muaj peev xwm mus flex tsis tawg (ductility). Daim ntawv thov ntawm cov hlau cam khwb cia muaj xws li ntau yam tseem ceeb hauv tsheb xws li cov tsheb sib txawv, cov rooj sib txawv, cov kabmob, thiab cov kauj tsheb kauj vab. Lwm yam kev siv suav nrog cov cuab yeej siv tes, brackets, tshuab qhov chaw, cov khoom siv hluav taws xob, cov yeeb nkab fittings, cov cuab yeej ua liaj ua teb, thiab cov khoom siv mining.