Ukusatshalaliswa kosayizi kwezinhlayiya zesihlabathi ezingavuthiwe kuthinta kakhulu ikhwalithi yokubunjwa. Uma usebenzisa i-grit eqinile, insimbi encibilikisiwe ivama ukungena ku-core grit, okuholela ekubunjweni okubi. Ukusetshenziswa kwesihlabathi esicolekile kungaveza indawo yokuphonsa engcono futhi ebushelelezi, kodwa kudinga inani eliphakeme le-binder, futhi ngesikhathi esifanayo kunciphisa ukungena komoya okuphakathi, okungase kubangele ukukhubazeka kokuphonsa. Enqubweni evamile yokuphonsa isihlabathi, ikakhulukazi uma kusetshenziswa isihlabathi se-silica, isihlabathi esingahluziwe sivamise ukuba phakathi kobubanzi obulandelayo bosayizi:
Ukucoleka okumaphakathi 50–60 AFS (usayizi wezinhlayiyana omaphakathi 220–250 μm): ikhwalithi engcono yendawo kanye nokusetshenziswa okuphansi kwe-binder
Impushana ecolekile (engaphansi kuka-200 mesh) okuqukethwe ≤2%: inganciphisa inani le-binder
Okuqukethwe kodaka (okuqukethwe yizinhlayiyana ngaphansi kuka-0.02mm) ≤0.5%: kunganciphisa inani le-binder
Ukusatshalaliswa kosayizi wezinhlayiya: I-95% yesihlabathi igxilwe kusihlungo se-4 noma sesi-5: kulula ukuhlanganisa nokunciphisa ukukhubazeka kokuvuvukala.
Ukungena komoya kwesihlabathi esomile: 100-150: nciphisa ukukhubazeka kwezimbotshana
Isihlabathi se-Ceramic, ngenxa yesimo saso esicishe sibe yizinhlayiya esiyindilinga, uketshezi oluhle kakhulu, ukuvunywa komoya okuphezulu, kanye nezici zokusabalalisa usayizi wezinhlayiyana ezibanzi kanye nokuhlanganiswa kwenhlanganisela ye-single-mesh enqubweni yokukhiqiza, ekusebenzeni kokuphonsa, ngaphezu kokulandela izici ezivamile ezingenhla, kunezici Zayo ezihlukile zokuhlela eziyenza ikhululeke ekuhlukaniseni nasekuhlukaniseni ngesikhathi sokuthutha nokuhamba; inamandla amahle amanzi ekusetshenzisweni kwesihlabathi sesikhunta esiluhlaza kanye nesihlabathi se-resin esingabhaki. Ngenqubo yokuphonsa isihlabathi usebenzisa ama-binder, ukusetshenziswa kokusabalalisa kwe-multi-sieve kwenza izinhlayiya ezincane zigcwalise izikhala phakathi kwezinhlayiya ezinkulu futhi zihlanganiswe, okwandisa "ibhuloho lokuxhuma" le-binder, ngaleyo ndlela kuthuthukisa amandla esibopho somgogodla, njll. Kuyindlela ephumelelayo.
Ukufingqa ukusetshenziswa kwesihlabathi se-ceramic iminyaka engaphezu kwengu-20, izidingo zosayizi wezinhlayiyana kanye nokusatshalaliswa kwesihlabathi se-ceramic esisetshenziswa ezinqubweni zokuphonsa ezihlukene zibalwe kanjena:
● I-RCS (I-Resin Coated Ceramic Sand)
Amanani we-AFS we-50-70, 70-90, kanye ne-90-110 wonke asetshenziswa, asakazwa ku-4 noma ku-5 sieves, futhi ukuhlushwa kungaphezu kuka-85%;
● Isihlabathi se-resin esingabhaki
(Kubandakanya i-furan, i-alkali phenolic, i-PEP, uBonnie, njll.): Kusetshenziswa i-AFS 30-65, izisefo ezi-4 noma ukusatshalaliswa kwezisefo ezi-5, ukugxila kungaphezu kuka-80%;
● Inqubo Yegwebu Elilahlekile/Inqubo Yokuthola Isisindo Esilahlekile
I-10/20 mesh kanye ne-20/30 mesh isetshenziswa kakhulu, engathuthukisa ukungena komoya, iqinisekise izinga lokugaywa kabusha kwesihlabathi se-ceramic ngemuva kokuthululwa, nokunciphisa ukusetshenziswa;
● Inqubo Yesihlabathi Sebhokisi Elibandayo
I-AFS 40-60 isetshenziswa kakhulu, isakazwa nge-4 noma i-5 sieves, futhi ukugxila kungaphezu kuka-85%;
● I-3D Sand Printing
Ama-sieve ama-2 asakazwa, kufika ku-3 ama-sieve, ane-concentration engaphezu kuka-90%, okuqinisekisa ukushuba kwesihlabathi esifanayo. Isilinganiso esihle sisatshalaliswa kabanzi ngokuya ngokusetshenziswa okuhlukene
Isikhathi sokuthumela: Mar-27-2023
