Malleable Cast Iron

Malleable Cast Iron
Simbi inokwenenzveka isimbi chena yakakandwa.Iyo annealing kupisa kurapwa inoshandura iyo brittle chimiro seyekutanga kukandwa muchimiro chinogoneka.Nokudaro, kuumbwa kwayo kwakafanana nesimbi yakachena yakakanda, ine zvishoma zvishoma zvekabhoni nesilicon.Simbi inogadzika ine ma graphite nodules ayo asina kutenderera sezvaari muductile iron nekuti anoumbwa kubva mukupisa kupisa kwete panguva yekutonhodza kubva mukunyungudika.Simbi inogadzika inogadzirwa nekutanga kukanda simbi chena kuitira kuti maflakes e graphite adzivirirwe, uye iyo yese isina kunyungudika kabhoni iri muchimiro chesimbi carbide.Simbi inogadzika inotanga sesimbi chena inobatwa nekupisa kwezuva rimwe kana maviri painokwana 950 °C (1,740 °F) yozotonhora kwezuva rimwe kana maviri.Nekuda kweizvozvo, iyo kabhoni mune iron carbide inoshanduka kuita magirafu mavhu akakomberedzwa neferrite kana pearlite matrix, zvichienderana nekutonhora kwekutonhora.Iyo inononoka maitiro inobvumira tension yepasi kuti igadzire ma graphite nodules pane maflakes.Simbi inogadzika, senge ductile iron, ine ductility yakakura uye kusimba nekuti inosanganisa nodular graphite uye yakaderera kabhoni metallic matrix.Senge ductile iron, simbi inogoneka inoratidzawo kupikisa kwakanyanya kune ngura uye yakanakisa machinability.Iron inokwenenzveka simba rekunyorovesa uye simba rekuneta zvinobatsirawo pasevhisi yakareba muzvikamu zvakasimbiswa zvakanyanya.Kune marudzi maviri eferritic inogadziriswa iron: blackheart uye whiteheart.

Inowanzo shandiswa kune zvidiki castings inoda yakanaka tensile simba uye kugona kuchinjika pasina kutyora (ductility).Mashandisirwo emasimbi anokwenenzverwa anosanganisira akawanda akakosha emotokari zvikamu senge zvinotakura zvakasiyana, makesi akasiyana, anotakura makepesi, uye magiya ekutungamirira.Zvimwe zvinoshandiswa zvinosanganisira maturusi emaoko, mabhurakete, zvikamu zvemuchina, zvemagetsi, zvekuisa pombi, midziyo yepurazi, uye migodhi hardware.