...
Foundry Ceramic Sand, nehunyanzvi inodaidzwa se "Sintered Ceramic Sand for Foundry", yakanzi zvakare ceramsite, cerabeads, ceramcast, dzimwe nyika dzinodaidzwawo kuti Golden Sand, yakanaka yekugadzira spherical zviyo chimiro chinogadzirwa kubva kune calcined bauxite.Iyo huru yemukati ndeye aluminium oxide uye Silicon oxide.Ceramic jecha, ine zvivakwa zviri nani pane iyo silica jecha kuti iwane kuita kurinani mukuwana.Iyo ine yakakwira refractoriness, kudiki kwekuwedzera kwemafuta, yakanaka angular coefficient, yakanakisa kuyerera, Kunyanya kuramba kupfeka, kupwanya uye kupisa kwekushisa, yakakwira reclamation rate.
Main Chemical Component | Al₂O₃≥53%, Fe₂O₃<4%, TiO₂<3%, SiO₂≤37% |
Zviyo Chimiro | Spherical |
Angular Coefficient | ≤1.1 |
Chikamu Saizi | 45μm -2000μm |
Refractoriness | ≥1800℃ |
Bulk Density | 1.5-1.6 g/cm3 |
Kuwedzera Kwekupisa (RT-1200℃) | 4.5-6.5x10-6/k |
Color | Jecha |
PH | 6.6-7.3 |
Mineralogical Composition | Mullite + Corundum |
Acid Cost | <1 ml/50g |
LOI | <0.1% |
Kaist ceramic foundry jecha rinenge hafu sechiedza se zircon uye chromite, inenge yechitatu sechiedza sejecha rakabatanidzwa re ceramic.Kuenzaniswa nejecha remusikirwo uye mamwe madhijitari ekutanga (zvinhu zvinokwanisa kushandura zvakapetwa kaviri nhamba yezviumbwa pahuremu hweyuniti).Kaist ceramic foundry jecha inogona kuunza mold uye core package ine huwandu hwemabhenefiti ayo anosanganisira yakakwirira-simba rekukanda jecha mapakeji, ane yakanyanya kupisa kupisa, kuderera kwekuwedzera kwemafuta, yakagadziridzwa chikamu chekupedzisira kugadzirisa uye kutsetseka kwepamusoro pekupedzisira.Inogona zvakare kubatwa zviri nyore, kuchengetedza vashandi uye kutamisa simba mari.Nekudaro, mugadziri anokurudzira kutarisisa kune huwandu hwekuwedzera binder.
Sechinhu chisina kwazvakarerekera, KAIST ceramic jecha rinoshanda kune acid uye alkali resins.
Inogona kushandiswa zvakanyanya kugadzira simbi yakakandwa, simbi yakakandwa uye nonferrous simbi kukanda, sekukanda furo rakarasika, jecha rakavharwa, jecha resin, bhokisi rinotonhora repakati, kukanda chaiko, uye kudhinda kwe3D.
Iyo particle size yekugovera inogona kugadzirwa zvinoenderana nezvaunoda.
Mesh | 20 | 30 | 40 | 50 | 70 | 100 | 140 | 200 | 270 | Pan | AFS | |
μm | 850 | 600 | 425 | 300 | 212 | 150 | 106 | 75 | 53 | Pan | ||
Code | 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 |