Indima yeZinto ze-Aloy kwi-Grey-i-Iron

I-1. I-Manganese kunye neSulfur
Generally speaking, sulfur is a harmful element. But for gray cast iron, a small amount of sulfur plays a very important role in the refinement of graphite core and cocrystal groups. Therefore, the sulfur content in gray cast iron should not be less than 0.06%, and it is best to keep between 0.06% and 0.08%. If the sulfur content is too high (>I-0.18%), zonke iintlobo zefuthe eliyingozi ziya kuvela kwaye zonakalise umgangatho wokuphoswa.
I-Sulfuur yinto enomsebenzi weekhemikhali owomeleleyo. Xa umxholo we-manganese kwi-iron yentsimbi iphantsi kakhulu, i-sulfur kunye nentsimbi ye-Iron ye-1193, i-carbon ye-1193, i-Sulflon 31.7% yi-Iron, inqaku le-975.
I-FS inokuchithwa ngokupheleleyo kwisisombululo sentsimbi. Xa kukho i-iron iqinile, i-sulfure okanye i-fusfure kwi-Austedite kunye ne-carbonization eqinileyo kakhulu, inesidima esikwisigaba se-sulffide, kwaye ekugqibeleni sandiswa ngendlela ye-sulfure, xa i-sulfure ye-Sulfide ivela.
Kwi-phrey yentsimbi, ubuchwephesha be-sulfure kunye ne-manganese bukhulu kakhulu kuneso sentsimbi, kunye nokuqulunqwa kwe-MNS yeyona nto iphambili kwimpendulo echazwe kwi-equation echazwe.
Mn + fes mns + fe
Indawo yokunyibilika ye-mns yi-1620 degree. Kwi-iron yentsimbi, i-MNS yi-birbaccer encinci nengaphambukisileyo ebomvu, esasazwayo kwi-matrix yentsimbi, kwaye inceda ekuphuculeni ukusebenza kwentsimbi kunye nokuphucula ubomi besixhobo.
Kwi-Frey i-iron yentsimbi, i-MNS kunye ne-FESs ingakwazi ukwenza i-interdissisve, ke isixa se-manganese kunye ne-sulfur kwi-Sulfide ye-Sulfide (Mnfe) s iguqukile. I-Sulfur kunye neoksijini inokunyibilika, kunjalo kwi-iron yentsimbi, imeko ye-ilffide inzima kakhulu, apho imithombo ye-Ilffide inokumelwa yi-fexemysvow, apho amaxabiso e-X, v no-W aya kutshintsha ngeemeko ezithile zentsimbi.
Kwiminyaka yakutshanje, isifundo ngohlalutyo lwe-thlographiction ibonisile ukuba kukho malunga nezigidi ezingama-43 ze-MNS kunye (MNFE) i-TAXPUSS KWI-1CM3 ASS i-2 ~ 23 micro. Ixabiso elipheleleyo lezinto ezibandakatri lingaphantsi kwe-0.01% yobunzima be-iron yentsimbi.
Xa i-sulfuur ikhona kwi-furfuur okanye i-testary cotostal, ihlule kwinqanaba lesigaba solwelo kwibhloko ye-cocrystal kwinkqubo yokuqina, oko kukhulisa i-supercool ye-stockel yentsimbi. Emva kokuqina, i-furrystal ye-cocrystal emdeni yeqela leCocrystal iya kwenza iipropathi zoomatshini bokunyibilikisa i-iron iphantsi kwaye ubuchwephesha bukhulu. Le yimpembelelo eyingozi yesalfure.
Ukuba izixa ezayo zongezwa kwi-iron yentsimbi yokuvelisa i-fes kwaye isebenzise i-sulfide kwaye ichithe i-sulffide ukubandakanywa, i-sulfur idlala indima efanelekileyo neyongenelo kwizinto zegrafu kunye nokukhula kwegrafu. Iziphumo ze-Iron I-Iron incinci i-Crystal incinci, igrafu i-pitite a, akuyi kubakho umlomo omhlophe. Ukwenza ubume bephepha legraphityelwa, ubuncinci bomxholo we-sulfur kwi-iron ye-Grey i-Grey kufuneka ibe yi-0.06%. Umxholo wesalfure ungaphantsi kwelixabiso, kunye nokusasazwa kwephepha elingumzobo kwi-Iron yentsimbi kubi, kwaye kulula ukuvelisa umlomo omhlophe.
Indima ephambili ye-manganese kwi-iron ye-grey i-free kukuthintela i-Sulfur kwaye ithintele i-fes. Kuba umyinge wobunzima be-atomic ye-manganese kwi-Sulfur yi-1.71. I-MNS ilingana ne-manganese ye-manganese kunye ne-sulfur yenziwa kwi-iron ye-1.71. I-Mangn iphezulu kunolinganiso, obizwa ngokuba yi