Irahiko Whakarewa Nikara me te Nikara
Ni307-7
GB/T ENi6152
AWS A5.11 ENiCrFe-7
Whakaahuatanga: He irahiko nikara te Ni307-7 me te paninga konutai hauwai-iti. Whakamahia te DCEP (irahiko 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 miihini o te konganuku kua whakatakotoria, ā, he pai te ātete ki te waikura i rotote waikura pāmahana teitei me ngā āhuarangi kei roto he whanariki.
Taupānga: Whakamahia i roto i te miihini karihi, te waikawa whanariki, te waikawa hauota me te taputapu hanga hauwai fluorine, pēnei i te koranu nikara 690, ASTM B166, B167, b168, me ētahi atu, ka taea hoki te whakamahi hei whakarewa i te rino nikara-konukōmi me te maitai kore waikura me te paparanga ātete-waikura ki runga i te maitai.
Te hanganga matū o te konganuku whakarewa (%):
| C | Mn | Fe | Si | Ni | Cr |
| ≤0.05 | ≤5.0 | 7.0 ~ 12.0 | ≤0.8 | ≥50.0 | 28.0 ~ 31.5 |
| Cu | Mo | Nb | S | P | Ētahi atu |
| ≤0.5 | ≤0.5 | 1.0 ~ 2.5 | ≤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 | ≥550 | ≥360 | ≥27 |
Iahiko e taunakitia ana:
| Te whānui o te tokotoko （mm） | 2.5 | 3.2 | 4.0 |
| Iahiko whakarewa （A） | 60 ~ 90 | 80 ~ 110 | 110 ~ 150 |
Pānui:
1. Me tunu te hiko mō te 1 hāora i te pāmahana tata ki te 300℃ i mua i te mahi whakarewa;
2. He mea nui kia horoia ngā waikura, te hinu, te wai, me ngā poke i runga i ngā wāhanga whakarewa i mua i te whakarewa. Whakamātauria te whakamahi i tētahi pewa poto hei whakarewa.
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