Irahiko Whakarewa Parahi me te Koranu Parahi
T207
GB/T ECuSi-B
AWS A5.6 ECuSi
Whakaahuatanga: He hiko parahi te T207, he matua parahi silicon, he iti hoki te paninga hauwai konutai. He DCEP (hiko au tika) tōna e whakamahia ana, ā, he tino pai ōna āhuatanga hangarau. He pai tōna ātete ki te waikura ki ngā waikawa kore-waro, engari ki te waikawa hauota, ki te nuinga o ngā waikawa waro me te wai moana.
Taupānga: He pai mō te whakarewa i te parahi, te parahi silicon me te parahi, te whakarewa mata o ngā arai o ngā paipa mīhini matū, me ētahi atu.
Te hanganga matū o te konganuku whakarewa (%):
| Cu | Si | Mn | Pb | Al+Ni+Zn |
| ＞92.0 | 2.5 ~ 4.0 | ≤3.0 | ≤0.02 | ≤0.50 |
Ngā āhuatanga hangarau o te konganuku whakarewa:
| 试验项目 tūemi whakamātautau | 抗拉强度 Te kaha o te kume Mpa | 延伸率 Te whakaroa % |
| 保证值 Kua whakamanahia | ≥270 | ≥20 |
Iahiko e taunakitia ana:
| Te whānui o te tokotoko （mm） | 3.2 | 4.0 | 5.0 |
| Iahiko Whakarewa （A） | 90 ~ 130 | 110 ~ 160 | 150 ~ 200 |
Pānui:
Ngā Whakatūpato:
1. Me tunu te hikohiko ki te pāmahana tata ki te 300°C mō te 1 ki te 2 hāora i mua i te whakarewanga;
2. Me tango te makuku, te hinu, ngā waikura me ētahi atu poke i runga i te mata o te whakarewanga i mua i te whakarewanga.
3. Mēnā ka whakarewahia te parahi silicon, ka whakarewahia rānei te mata ki te maitai, kāore e hiahiatia he whakamahanatanga. Ko te pāmahana whakamahanatanga mō te whakarewa i te parahi parakore he tata ki te 450°C, ā, ko te pāmahana whakamahanatanga mō te whakarewa parahi he tata ki te 300°C;
4. Me whakamahi te whakarewa poto-piko i te wā e whakarewa ana. I te wā e whakarewa ana i ngā paparanga maha, me horoi te para i waenga i ngā paparanga
tangohia rawatia; i muri i te whakarewanga, me patu te whakarewanga ki te hama pane papatahi hei whakamahine i ngā kakano, hei whakakore i te ahotea, hei whakapai ake i te kaha me te ngāwari o te whakarewanga.
