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Foundry Ceramic Sand, nke aha ya bụ "Sintered Ceramic Sand for Foundry", akpọkwara ya dị ka ceramsite, cerabeads, ceramcast, ụfọdụ mba a na-akpọkwa Golden Sand, bụ ezigbo ọka ọka okirikiri nke sitere na calcined bauxite.Isi ọdịnaya ya bụ aluminum oxide na Silicon oxide.ájá ceramic, nwere ihe dị mma karịa nke ájá silica iji nweta arụmọrụ dị mma na ebe a na-emepụta ihe.Ọ nwere nnukwu refractoriness, obere mgbasawanye thermal, ezigbo ọnụọgụ angular, ọmarịcha mmiri na-efe efe, Nnukwu nguzogide iyi, nchipịa na ujo thermal, ọnụ ọgụgụ mweghachi dị elu.
Ihe mejupụtara kemịkalụ bụ isi | Al₂O₃≥53%, Fe₂O₃<4%, TiO₂<3%, SiO₂≤37% |
Ụdị ọka | Spherical |
Ọnụ ego angular | ≤1.1 |
Akụkụ akụkụ | 45μm-2000μm |
Refractoriness | ≥1800℃ |
Njupụta nnukwu | 1.5-1.6 g/cm3 |
Mgbasa ọkụ (RT-1200℃) | 4.5-6.5x10-6/k |
Agba | Aja |
PH | 6.6-7.3 |
Ihe mejupụtara mineral | Mulite + Corundum |
Ọnụ ego acid | 1 ml / 50g |
LOI | 0.1% |
Kaist ceramic foundry ájá dị ihe dị ka ọkara ka ìhè dị ka zircon na chromite, dị ihe dị ka nke atọ ka ìhè dị ka ájá seramiiki jikọtara ọnụ.Tụnyere ndị a eke ájá na ndị ọzọ foundry media (ihe na-enwe ike tụgharịa ihe dị ka ugboro abụọ ọnụ ọgụgụ nke ebu kwa unit arọ).Kaist ceramic foundry ájá nwere ike ibuga ebu na ngwungwu isi nwere ọtụtụ uru na-agụnye ngwungwu nkedo ájá siri ike dị elu, na-eguzogide okpomọkụ dị elu, mgbasawanye okpomọkụ dị ala, mkpebi ikpeazụ nke ọma na njedebe dị nro.Enwere ike ijikwa ya n'ụzọ dị mfe, na-echekwa ọrụ na ịnyefe ego ike.Otú ọ dị, onye na-emepụta ihe na-atụ aro ịṅa ntị na ọnụọgụ nke mgbakwunye.
Dị ka ihe na-anọpụ iche, KAIST seramiiki ájá na-adabara acid na alkali resins.
Enwere ike iji ya mee ihe n'ọtụtụ ebe maka igwe nkedo, ihe nkedo na igwe anaghị agba nchara, dị ka nkedo ụfụfụ furu efu, ájá mkpuchi, aja resin, igbe isi oyi, nkedo ziri ezi, na mbipụta 3D.
Enwere ike ịhazi nkesa nha nha dị ka ihe ịchọrọ.
Ntupu | 20 | 30 | 40 | 50 | 70 | 100 | 140 | 200 | 270 | Pan | AFS | |
μm | 850 | 600 | 425 | 300 | 212 | 150 | 106 | 75 | 53 | Pan | ||
Koodu | 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 |