Iziphene zokwandisa ezinje ngerabha okanye ifin zifundwa ikakhulu ngokwembonakalo yemixholo yeebinder kunye neepropathi.
Kweli phepha, ezi ziphene kwi-grey cast iron yeemoto ziye zavavanywa ngobumba besanti oluhlaza kunye nokubumba kweqokobhe, ngakumbi ukusuka kwindawo yokujonga umxholo we feldspar kwisanti yesilika. Ubunzima obushushu besanti yokubumba inyuke ngokwandisa umxholo we-feldspar kwisanti yesilika. Oku kunyuka kobunzima obushushu kubangelwe kukuntywila kweenkozo zefeldspar. Yayisebenza ngokugqibeleleyo kwizikrelemnqa ekubunjweni kwesanti eluhlaza kunye nokubumba kweqokobhe. Apho ukungena kwesinyithi kunye nopheliso kubonakala kumphezulu weqokobhe elijikelezwe ngamacandelo esinyithi esindayo, izongezo ze-feldspar ziyinyange ingxaki kwimeko ezininzi.
Umzekelo, ukongeza i-11% ye-feldspar kwisanti yesalica kuncitshiswe amaqokobhe kumphezulu weechells cores ezazisetyenziselwa iimeko zokuhambisa (malunga ne-25kg ngokobunzima). Kwimeko yeebhatyi zebhatyi zamanzi zentloko yesilinda kunye neebhloko zenjini yedizili, kuye kwafuneka kongezwe ukuya kuthi ga kwi-11-37% apho uninzi lwesohlwayo esinzima kunye nokungena kuye kwenzeka. Xa ezi castings zazinemingxunya embalwa kakhulu yokulahla isanti engundoqo, kwakuyimfuneko ukuba kungongezwa ngaphezulu kwe-27% ye-feldspar, kuba ii-cores zebhatyi ziye zangangqubeki kancinci ngenxa yokutya okuye kwabangelwa kukudibana kwe-feldspar.
Inxulumene netekhnoloji yokuphosa umfanekiso wobungakanani obukhulu ngeqokobhe lesinyithi. Isebenzisa inkqubo yokwahlula-hlula ukubuyela umva kwindlela yokubumba isanti. Umaleko lokufaka ogama ubukhulu iyafana naleyo yokuphosa udonga ibekwe kumphezulu womngxunya wangaphakathi wesanti yeprofayile yayo, emva koko isiseko sayo singenziwa ngokuthe ngqo kumngxunya wangaphakathi, emva koko kugcwaliswe okususwe. Unokwenza iinkqubo zokuvala kunye nokugalela. Ukuyilwa kulula kwinkqubo yokubumba, iphantsi kwiindleko zokuvelisa kwaye akukho mfuneko yokwenza ibhokisi engundoqo. Umfanekiso oqingqiweyo unokubunjwe ubunjwe, kwaye umgangatho wawo umphezulu ulungile, ifom iyinyani ngokwenene
Ixesha Post: Nov-20-2020