Irahiko Whakarewa Nikara me te Nikara
Ni327-4
GB/T ENi6276
AWS A5.11 ENiCrMo-4
Whakaahuatanga: He hiko nikara te Ni327-4 me te paninga konutai hauwai-iti. Whakamahia te DCEP (hiko iahiko iahiko tika)(pai). He tino pai te mahi whakarewa me te mura pewa pumau, te iti o te tauhiuhi, te ngāwari ki te tango i te paru,
me te whakarewa ataahua. He pumau ngā āhuatanga ā-pūkaha o te konganuku kua whakatakotoria.
Taupānga: Whakamahia mō te whakarewa i ngā koranu nikara-konumā-moriperenamu waro-iti, pērā i a Hastelloy C276, ASTM B574, B575, B619, B622, B626, ā, ka taea hoki te whakamahi mō te whakarewa i ngā maitai rerekē me ētahi atu koranu e hangai ana ki te nikara.
Te hanganga matū o te konganuku whakarewa (%):
| C | Mn | Si | Cr | Ni | Mo |
| ≤0.02 | ≤1.0 | ≤0.2 | 14.5 ~ 16.5 | ≥50.0 | 15.0 ~ 17.0 |
| W | Co | Fe | S | P | Ētahi atu |
| 3.0 ~ 4.5 | ≤2.5 | 4.0 ~ 7.0 | ≤0.015 | ≤0.020 | ≤0.5 |
Ngā āhuatanga hangarau o te konganuku whakarewa:
| tūemi whakamātautau | Te kaha o te kume Mpa | Te kaha o te hua Mpa | Te whakaroa % |
| Kua whakamanahia | ≥690 | ≥400 | ≥22 |
Iahiko e taunakitia ana:
| Te whānui o te tokotoko （mm） | 2.5 | 3.2 | 4.0 |
| Iahiko whakarewa （A） | 60 ~ 90 | 70 ~ 110 | 90 ~ 150 |
Pānui:
1. Me tunu te hikohiko mō te 1 hāora i te pāmahana tata ki te 300℃ i mua i te mahi whakarewa. Whakamātauria te whakamahi i te pewa poto hei whakarewa;
2. He mea nui kia horoia te waikura, te hinu, te wai, me ngā poke i runga i ngā wāhanga whakarewa i mua i te whakarewa.
3. Whakamātauria te whakamahi i te pūngao aho iti i te wā e whakarewa ana, e whakarewa ana i ngā paparanga maha me ngā ara maha.
