Dhuumaha Birta Ductile
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Tuubbada Birta Madow ee Tayada Alxanka leh ee Tayada leh: Dhexroor 3 Inj ah, Qiimaha Tartan
Dhinaca dhismaha, muhiimadda agabka waara ee lagu kalsoonaan karo lama soo koobi karo.Mid ka mid ah qaybaha lagama maarmaanka ah waa tuubada birta madow iyo tuubada.Qaab-dhismeedyadan adag iyo kuwa isku dhafan waxay door muhiim ah ka ciyaaraan codsiyada kala duwan ee warshadaha dhismaha.Haddi ay ahaan lahayd hababka tuubooyinka, xadhkaha gaaska, ama taageerooyinka qaabdhismeedka, tuubooyinka birta madow iyo tuubooyinka ayaa ah qayb lama huraan ah oo ka mid ah dhismaha casriga ah.
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Dhuumaha birta ee shubka nodular
Tuubooyinka birta ah ee birta ah ee Nodular-ka ah ayaa asal ahaan ah tuubooyinka birta ductile, kuwaas oo leh nuxurka birta iyo sifooyinka birta, sidaas darteed magacooda.Graphite ee tuubooyinka birta ductile waxay u jirtaa qaab wareegsan, oo cabbirkeedu guud yahay 6-7 darajo.Marka la eego tayada, heerka spheroidization ee tuubooyinka birta ah ayaa loo baahan yahay in lagu xakameeyo heerarka 1-3, oo leh heerka spheroidization ee ≥ 80%.Sidaa darteed, sifooyinka farsamada ee maadada lafteeda ayaa la hagaajiyay, iyada oo lahaanshaha nuxurka birta iyo sifooyinka birta.Ka dib markii la tirtiro, qaab-dhismeedka microstructure ee tuubooyinka birta birta ah waa ferrite leh qadar yar oo pearlite ah, kaas oo leh sifooyin farsamo oo wanaagsan, sidaas darteed waxaa sidoo kale loo yaqaannaa tuubooyinka birta birta ah.