Chitoliro chachitsulo chosapanga dzimbiri cha Giredi ndi Zinthu

Chitoliro cha chitsulo chopanda kaboni chimatanthauza chitoliro chopangidwa ndi chitsulo cha kaboni chopanda zolumikizira kapena mipiringidzo yolumikizidwa, ndipo billet yolimba imatulutsidwa kudzera mu die kuti ipange chitoliro cha mawonekedwe ndi kukula komwe mukufuna. Chitoliro cha chitsulo chopanda kaboni chopanda kaboni ndi chodziwika chifukwa cha kulimba kwake kwakukulu, mphamvu yake yolimba komanso kukana dzimbiri, zomwe zimapangitsa kuti chikhale choyenera mafakitale osiyanasiyana kuphatikiza mafuta ndi gasi, magalimoto ndi zomangamanga.

Chimodzi mwa mitundu yotchuka kwambiri ya chitoliro cha chitsulo chopanda mpweya cha carbon ndiA106 Giredi B, yomwe ndi muyezo wa ASTM wa chitoliro chachitsulo cha kaboni chopanda msoko kuti chigwiritsidwe ntchito kutentha kwambiri. Ili ndi mpweya wokwanira wa kaboni wa 0.30%, zomwe zimapangitsa kuti ikhale yoyenera kugwiritsidwa ntchito pakufunika kutentha kwambiri ndi kupanikizika. Iyeneranso kugwiritsidwa ntchito pa kupanikizika kochepa ndi kutentha kochepa, komanso kulumikiza ndi kupangira zitsulo.

Giredi ina yotchuka ndiAPI 5L Giredi B, yomwe ndi muyezo wa chitoliro chachitsulo chosasunthika komanso cholumikizidwa cha machitidwe otumizira mapaipi mumakampani opanga mafuta ndi gasi. Ili ndi mpweya wokwanira wa kaboni wa 0.30%, zomwe zimapangitsa kuti ikhale yoyenera kugwiritsidwa ntchito m'malo opanikizika kwambiri komanso kutentha kwambiri.

Kuwonjezera pa mtundu wake, zinthu zomwe zimagwiritsidwa ntchito mu chitoliro chachitsulo chopanda mpweya ndizofunikanso kwambiri. Zipangizo zodziwika bwino zikuphatikizapo SAE 1020, yomwe ili ndi mpweya wochepa ndipo ndi yoyenera kupindika, kupotoza ndi ntchito zina zofanana, ndi SAE 1045, yomwe ili ndi mpweya wochuluka ndipo ndi yoyenera kugwiritsidwa ntchito pofuna kuuma, kulimba komanso kukana kuvala.

Zipangizo zina zikuphatikizapo ASTM A519 Giredi 4130 ya mizere ya hydraulic yokhala ndi mphamvu yayikulu komanso mapaipi amafuta, ndi ASTM A106 Giredi C yokhala ndi mpweya wokwanira wa 0.35% pa ntchito zomwe zimafuna kukana dzimbiri kwambiri.

Pomaliza, mapaipi achitsulo chopanda mpweya ndi ofunikira m'mafakitale osiyanasiyana ndipo kusankha mtundu ndi zinthu kumadalira momwe amagwiritsidwira ntchito. A106 Giredi B ndi API 5L Giredi B ndi mitundu yotchuka, pomwe zipangizo monga SAE 1020, SAE 1045,ASTM A519 Giredi 4130, ndi ASTM A106 Giredi C ndi zosankha zodziwika bwino.