A sinadaran abun da ke ciki na ductile baƙin ƙarfe yafi hada da biyar gama gari abubuwa na carbon, silicon, manganese, sulfur da phosphorus. Don wasu simintin gyare-gyare tare da buƙatu na musamman akan tsari da aiki, an haɗa ƙaramin adadin abubuwan haɗaɗɗun abubuwa. Ba kamar ƙarfen simintin siminti na yau da kullun ba, baƙin ƙarfe ductile dole ne ya ƙunshi adadin abubuwan da suka rage na spheroidal don tabbatar da spheroidization na graphite. Muna kera nau'ikan nau'ikansimintin gyare-gyare ga manyan motocin Japan da na Turai, kamarbakin ruwa, daurin bazara,spring fil da spring bushing.
1, Carbon da carbon daidai zaɓi manufa: carbon ne ainihin kashi na ductile baƙin ƙarfe, high carbon taimaka graphitization. Koyaya, babban abun ciki na carbon zai haifar da graphite iyo. Saboda haka, babban iyaka na carbon daidai a cikin ductile baƙin ƙarfe yana dogara ne akan ka'idar babu graphite iyo.
2, Ƙa'idar zaɓin Silicon: Silicon wani abu ne mai ƙarfi na graphitizing. A cikin ductile baƙin ƙarfe, silicon ba zai iya kawai yadda ya kamata rage hali na farin baki da kuma kara yawan ferrite, amma kuma yana da rawar da refining eutectic gungu da inganta roundness na graphite spheres.
3, Manganese selection ka'idar: Kamar yadda sulfur abun ciki a cikin ductile baƙin ƙarfe ya riga ya ragu sosai, ba sa buƙatar manganese da yawa don neutralize sulfur, rawar da manganese a cikin ductile baƙin ƙarfe ne yafi a kara da kwanciyar hankali na pearlite.
4, Ka'idodin zaɓi na Phosphorus: phosphorus abu ne mai cutarwa, yana da ƙarancin narkewa a cikin simintin ƙarfe. Gabaɗaya, ƙananan abun ciki na phosphorus a cikin baƙin ƙarfe ductile, mafi kyau.
5, Sulfur zabin ka'idar: Sulfur ne anti-spherical kashi, yana da karfi dangantaka da magnesium, rare ƙasa da sauran spheroidal abubuwa, gaban sulfur zai cinye mai yawa spheroidal abubuwa a cikin ferrofluid, samuwar magnesium da rare. ƙasa sulfides, haddasa slag, porosity da sauran simintin lahani.
6, Spheroidal element selection ka'idar: a cikin yanayin tabbatar da ƙwararrun spheroidal, ragowar adadin magnesium da ƙasa mai wuya ya kamata ya zama ƙasa kaɗan. Magnesium da ragowar ƙasa da ba kasafai ba sun yi tsayi da yawa, za su ƙara ɗabi'ar farin bakin ruwan ƙarfe, kuma za su yi tasiri ga kayan aikin simintin gyare-gyare saboda rarrabuwar su a kan iyakokin hatsi.
Lokacin aikawa: Jul-04-2023
