Ka rite ki te tukanga makanga pū, tehua whakaputaina emakanga haumihe tino tika te ahu me te iti o te uara taratara mata. Ko te whakarewanga haumi he tata te hanga kupenga. Ina koa ka whakamahia te sol silica hei rauemi mata mo te hanga anga anga, ka pai ake te whakapumau i te tika o te mata o nga whakarewanga haumi. Na reira, te silica sol haumi tukanga makanga e tangohia e te ake me te akehanga whakarewa.
Ko te Silica sol he herenga wai-a-wai me te hanganga colloid waikawa silicic. He otinga polymer colloidal i roto i nga matūriki silica tino marara ka memeha ki te wai. He porowhita nga matūriki colloidal, he 6-100nm te diameter. Ko tetukanga o te makanga haumiki te hanga i te anga ko te mahi whakaraera. He maha nga mea e awe ana i te whakawhanaunga, te nuinga o te electrolyte, te pH, te kukū o te sol me te pāmahana. He maha nga momo sols silica arumoni, a ko te mea tino whakamahia he sol silica alkaline me te ihirangi silica o te 30%. Hei whakakore i nga ngoikoretanga o te huringa hanga anga roa o te anga sol silica, kua hangaia he sol silica tere whakamaroke i nga tau tata nei. He ngawari noa te mahi hanga anga sol silica. E toru nga tukanga o ia tukanga: te paninga, te kirikiri, me te whakamaroke. He maha nga wa ka tukuna ia tukanga kia whiwhi i te anga multilayer o te matotoru e hiahiatia ana.
Ka taea e te taumata kātakí ahu o castings haumi tae CT4 ~ CT7. I roto i a raatau, ko nga tohu whakaahuru ahu omaka whakangao haumi maitai, te whakarewanga whakangao rino, te whakarewanga whakangao koranu-a-nika me nga whakangao haumi koranu ko te tikanga ko te CT5 ~ CT7. Ko te taumata aro nui o te whakarewa marama me tekoranu parahi haumi castingska tae ki te CT4 ~ CT6.
| TE WHAKAMAHI I TE WHAKAMAHI | |||
| Inihi | Mirimita | ||
| Ahu | Te manawanui | Ahu | Te manawanui |
| Tae atu ki te 0.500 | ±.004" | Tae atu ki te 12.0 | ± 0.10mm |
| 0.500 ki te 1.000” | ±.006" | 12.0 ki te 25.0 | ± 0.15mm |
| 1.000 ki te 1.500” | ±.008" | 25.0 ki te 37.0 | ± 0.20mm |
| 1.500 ki te 2.000” | ±.010" | 37.0 ki te 50.0 | ± 0.25mm |
| 2.000 ki te 2.500” | ±.012" | 50.0 ki te 62.0 | ± 0.30mm |
| 2.500 ki te 3.500” | ±.014" | 62.0 ki te 87.0 | ± 0.35mm |
| 3.500 ki te 5.000” | ±.017" | 87.0 ki te 125.0 | ± 0.40mm |
| 5.000 ki te 7.500” | ±.020" | 125.0 ki te 190.0 | ± 0.50mm |
| 7.500 ki te 10.000” | ±.022" | 190.0 ki te 250.0 | ± 0.57mm |
| 10.000 ki te 12.500” | ±.025" | 250.0 ki te 312.0 | ± 0.60mm |
| 12.500 ki te 15.000 | ±.028" | 312.0 ki te 375.0 | ± 0.70mm |
Wā tuku: Feb-03-2021