Isanti yeresin yintlabathi yokubumba (okanye isanti engundoqo) elungiswe ngentlaka njengesibophelelo. I-resin coated isanti casting ikwabizwa ngokubaiqokobhe ngundo ukuphosangenxa yokuba i-resin ngundo yentlabathi inokuqina ibe yiqokobhe elomeleleyo emva kokufudumeza nje kwiqondo lobushushu legumbi (akukho kubhaka okanye ukuziqinisa), eyahlukileyo kubushushu begumbi.inkqubo yokugalela isanti eluhlaza. Ukusetyenziswa kwe-furan resin njengesibophelelo sokubumba isanti lutshintsho olukhulu kwinkqubo yokuphosa isanti. Ukususela ekufikeni kwale ndlela, iye yatsala ingqalelo kwishishini lokuphosa kwaye iphuhliswe ngokukhawuleza. Njengoko i-resin yokubumba i-mold (core) ye-sand binder, iindidi kunye nomgangatho zihlala zikhula, ezinokuhlangabezana neemfuno zee-alloys ezahlukeneyo.
Ngenxa yokusetyenziswa kwesanti ye-resin, iinkqubo ezininzi ezintsha zokubumba (ezingundoqo) ziye zavela enye emva kwenye, njenge-shell shell (imilo), ibhokisi eshushu, ibhokisi ebandayo, i-self-harding core yesanti, njl. yesanti resin ibe yenye yeemeko ezisisiseko kwimveliso yobunzimaiicastings ezikumgangatho ophezulu. Kwiindibano zocweyo zokugalela isanti zesiqwenga esinye kunye nokuveliswa kobuninzi, ukuveliswa kweentsimbi zesanti kunye nokubumba kwesanti kunye nesanti ye-resin yindlela eqhelekileyo, kwaye uphuhliso luye lwakhawuleza kakhulu kwiminyaka yamuva.
Izinto eziluncedo kwiResin Coated Sanding Casting:
1. Iicastings zinomgangatho olungileyo womphezulu kunye nokuchaneka okuphezulu;
2. Akukho mfuneko yokomisa, kukho ukunciphisa umjikelezo wemveliso;
3. Inkqubo yokubunjwa kwe-resin sand mold igcina amandla ngenxa yokuba i-resin sand mold (engundoqo) inamandla amakhulu, ukunyanzeliswa komoya okulungileyo, iziphene ezimbalwa zokuphosa kunye nezinga eliphantsi lokulahlwa;
4. Isanti yeresin inomanzi kwaye kulula ukuyidibanisa;
5. I-collapsibility elungileyo, kulula ukuyishukumisa kunye nokucoca, ukunciphisa kakhulu ukuqina kwabasebenzi.
Izinto ezingeloncedo ngeResin Sand Mold Casting Process:
1. Ngenxa yokuba ubukhulu besanti ekrwada, imilo, umxholo wesulfure dioxide kunye neekhompawundi zealkali zinokuba nefuthe elikhulu ekusebenzeni kwesanti ye-resin, iimfuno zesanti ekrwada ziphezulu;
2. Ubushushu kunye nomswakama wendawo yokusebenza kunempembelelo enkulu kwisantya esinzima kunye namandla okuqina kwesanti ye-resin;
3. Xa kuthelekiswa nezibophelelo ze-inorganic, isanti ye-resin inomthamo omkhulu wegesi;
4. I-resin kunye ne-catalyst inevumba elimnandi, kwaye umoya omhle kwindawo yokusebenzela uyafuneka;
5. Ixabiso le-resin liphezulu kunokuphosa kwesanti eluhlaza.
Eyona santi yeresin esetyenziswa kakhulu yii-furan resin isanti ezenza lukhuni. I-Furan resin isekwe kwi-alcohol ye-furfuryl kwaye ithiywe ngegama lomsesane okhethekileyo we-furan kwisakhiwo sayo. Ngokwesiseko sayo, kukho i-furfuryl alcohol furan resin, i-urea formaldehyde furan resin, i-phenolic furan resin kunye ne-formaldehyde furan resin. I-Furan resin isoloko isetyenziswa njenge-binder xa ilungiselela isanti ezenza lukhuni kwimveliso. I-Furan resin esetyenziselwa isanti yokuzimela inomxholo ophezulu we-furfuryl utywala, ukuphuculwa kokugcinwa kwe-resin, amandla aphezulu okushisa, kodwa ukunyuka kweendleko.
Isanti ye-Furan resin self-harding ibhekisela kuhlobo (ongundoqo) isanti ukuba i-furan resin binder ifumana ukusabela kweekhemikhali phantsi kwesenzo se-catalyst kwaye iqina kwiqondo lokushisa. Isanti ye-resin ye-Furan ngokubanzi iqulunqwe yisanti ekrwada, i-furan resin, i-catalyst, izongezo, njl njl. khetha ngokuchanekileyo izixhobo ezahlukeneyo zesanti ye-resin.
Ixesha lokuposa: Mar-08-2021