.
Foundry Ceramic Sand, eo ka botekgeniki e bitsoang "Sintered Ceramic Sand for Foundry", eo hape e bitsoang ceramsite, cerabeads, ceramcast, linaha tse ling li boetse li rehiloe Lehlabathe la Khauta, ke sebopeho se setle sa koro sa maiketsetso se entsoeng ka bauxite e kolobisitsoeng.Litaba tsa eona tse ka sehloohong ke aluminium oxide le Silicon oxide.Lehlabathe la Ceramic, le na le thepa e ntle haholo ho feta ea lehlabathe la silika ho fumana ts'ebetso e ntle ho setsi sa motheo.E na le refractoriness e phahameng, katoloso e nyane ea mocheso, coefficient e ntle ea angular, phallo e ntle haholo, ho hanyetsa ho hoholo ho apara, ho sithabela le ho tšoha ha mocheso, sekhahla se phahameng sa ho khutlisa.
Karolo e ka Sehloohong ea Lik'hemik'hale | Al₂O₃≥53%, Fe₂O₃<4%, TiO₂<3%, SiO₂≤37% |
Sebopeho sa lijo-thollo | Spherical |
Angular Coefficient | ≤1.1 |
Boholo bo sa Feleng | 45μm -2000μm |
Refractoriness | ≥1800℃ |
Boima ba Bongata | 1.5-1.6 g/cm3 |
Katoloso ea Thermal (RT-1200℃) | 4.5-6.5x10-6/k |
Mmala | Lehlabathe |
PH | 6.6-7.3 |
Sebopeho sa Mineralogical | Mullite + Corundum |
Litšenyehelo tsa Asiti | <1 ml/50g |
LOI | <0.1% |
Kaist ceramic foundry sand e batla e le halofo ea leseli joalo ka zircon le chromite, e batla e le ea boraro ho bobebe joalo ka lehlabathe le kopaneng la ceramic.Ha ho bapisoa le lehlabathe tsena tsa tlhaho le mecha ea phatlalatso e meng ea motheo (thepa e khona ho hlahisa hoo e ka bang habeli palo ea liforomo ka boima ba yuniti).Kaist ceramic foundry sand e ka fana ka liphutheloana tsa hlobo le tsa mantlha tse nang le melemo e mengata e kenyelletsang liphutheloana tsa ho lahla lehlabathe le matla a phahameng, tse nang le ho hanyetsa mocheso o phahameng, ho atolosoa ha mocheso o tlase, ho ntlafala ha karolo ea ho qetela ea ho qetela le ho qeta holimo holimo.E ka boela ea sebetsoa habonolo haholo, e boloka litšenyehelo tsa basebetsi le ho fetisetsa matla a motlakase.Leha ho le joalo, moetsi o khothalletsa ho ela hloko palo ea tlatsetso ea binder.
Joalo ka thepa e sa nke lehlakore, lehlabathe la ceramic la KAIST le sebetsa ho li-resin tsa acid le alkali.
E ka sebelisoa haholo bakeng sa tšepe e entsoeng ka tšepe, tšepe e entsoeng ka tšepe le tšepe e sa tsitsang, joalo ka ho lahlela foam e lahlehileng, lehlabathe le koahetsoeng, lehlabathe la resin, lebokose le batang la mantlha, ho lahla ka nepo, le khatiso ea 3D.
Kabo ea boholo ba phatsa e ka etsoa ho latela tlhoko ea hau.
Mesh | 20 | 30 | 40 | 50 | 70 | 100 | 140 | 200 | 270 | Pan | AFS | |
μm | 850 | 600 | 425 | 300 | 212 | 150 | 106 | 75 | 53 | Pan | ||
Khoutu | 20/40 | 15-40 | 30-55 | 15-35 | ≤5 | 20±5 | ||||||
30/50 | ≤1 | 25-35 | 35-50 | 15-25 | ≤10 | ≤1 | 30±5 | |||||
40/70 | ≤5 | 20-30 | 40-50 | 15-25 | ≤8 | ≤1 | 43±3 | |||||
70/40 | ≤5 | 15-25 | 40-50 | 20-30 | ≤10 | ≤2 | 46±3 | |||||
50/100 | ≤5 | 25-35 | 35-50 | 15-25 | ≤6 | ≤1 | 50±3 | |||||
100/50 | ≤5 | 15-25 | 35-50 | 25-35 | ≤10 | ≤1 | 55±3 | |||||
70/140 | ≤5 | 25-35 | 35-50 | 8-15 | ≤5 | ≤1 | 65±4 | |||||
140/70 | ≤5 | 15-35 | 35-50 | 20-25 | ≤8 | ≤2 | 70±5 | |||||
100/200 | ≤10 | 20-35 | 35-50 | 15-20 | ≤10 | ≤2 | 110±5 |