Impembelelo yezinto ezintlanu eziphambili ze-iron ductile kwi-castings

Ukwakhiwa kweekhemikhali zensimbi ye-ductile ikakhulu kubandakanya izinto ezintlanu eziqhelekileyo zekhabhoni, isilicon, imanganese, isulfure kunye nephosphorus. Kwezinye ii-castings ezineemfuno ezikhethekileyo kwintlangano kunye nokusebenza, inani elincinci lezinto zokudibanisa nazo zibandakanyiwe. Ngokungafaniyo nentsimbi eqhelekileyo engwevu, i-iron ductile kufuneka iqulathe izixa ezishiyekileyo ze-spheroidal element ukuze kuqinisekiswe igraphite spheroidization. Senza uluhlu olubanzi lweiilori zaseJapan nezaseYurophu, njengeisibiyeli sasentwasahlobo, intambo yasentwasahlobo,i-spring pin kunye ne-spring bushing.

I-1, i-Carbon kunye ne-carbon elinganayo yokukhetha umgaqo: i-carbon yinto esisiseko ye-ductile iron, i-carbon ephezulu inceda i-graphitization. Nangona kunjalo, umxholo wekhabhoni ephezulu uya kubangela ukudada kwegraphite. Ngoko ke, umda ophezulu wekhabhoni elingana nentsimbi ye-ductile isekelwe kumgaqo wokuba akukho graphite edadayo.

I-2, umgaqo wokukhetha i-silicon: I-silicon yinto eyomeleleyo ye-graphitizing. Kwi-iron ductile, i-silicon ayinako ukunciphisa ngokufanelekileyo ukuthambekela komlomo omhlophe kunye nokwandisa inani le-ferrite, kodwa inendima yokucoca amaqoqo e-eutectic kunye nokuphucula ukujikeleza kwee-graphite spheres.

I-3, umgaqo wokukhetha i-Manganese: Njengoko umxholo wesulfure kwi-iron ductile sele uphantsi kakhulu, awudingi i-manganese eninzi ukuze unciphise isulfure, indima ye-manganese kwi-iron ductile ikakhulu ekunyuseni ukuzinza kwe-pearlite.

I-4, imigaqo yokukhetha i-Phosphorus: i-phosphorus yinto enobungozi, i-solubility ephantsi kakhulu kwi-iron cast. Ngokuqhelekileyo, umxholo ophantsi we-phosphorus kwi-iron ductile, ungcono.

I-5, umgaqo wokukhetha isulfure: isulfure yinto echasene ne-spherical, inobudlelwane obuqinileyo ne-magnesium, umhlaba onqabileyo kunye nezinye izinto ze-spheroidal, ubukho besulfure buya kutya izinto ezininzi ze-spheroidal kwi-ferrofluid, ukwakheka kwe-magnesium kunye nokunqabileyo. umhlaba we-sulfide, obangela i-slag, i-porosity kunye nezinye iziphene zokuphosa.

I-6, umgaqo-siseko wokukhetha izinto ezi-Spheroidal: kwisiseko sokuqinisekisa ukuba i-spheroidal ifanelekile, isixa esishiyekileyo se-magnesium kunye nomhlaba onqabileyo kufuneka ube phantsi ngokusemandleni. I-Magnesium kunye neentsalela zomhlaba ezinqabileyo ziphezulu kakhulu, ziya kwandisa ukuthambekela komlomo omhlophe we-iron liquid, kwaye iya kuchaphazela iimpawu zemishini yokuphosa ngenxa yokwahlula kwabo kwimida yengqolowa.