Irahiko Whakarewa Rino Ātete Wera Molybdenum me te Chromium Molybdenum
R717
AWS A5.5 E9015-B9
Whakaahuatanga: He hiko maitai ātete-wera te R717, he paninga konutai hauwai-iti kei roto ko te 9% Cr – 1% Mo-V-Nb. E whakamahia ana te DCEP (hiko hiko au tika) ā, ka taea te whakarewa i ngā tūranga katoa. Nā te tāpiri o te iti o te Nb me te V, he tino pai te ātete ki te ngoki pāmahana teitei o te konganuku kua whakatakotoria.
Whakamahinga: E whakamahia ana mō te whakarewa i ngā ngongo wera rawa me ngā pane o ngā kohua pāmahana-tiketike me te pēhanga-tiketike, pērā i te A213-T91/A335-P1 (T/P91), A387Cr, 91 me ētahi atu hanganga maitai ātete-wera.
Te hanganga matū o te konganuku whakarewa (%):
| C | Mn | Si | Cr | Mo | V | Ni |
| 0.08 ~ 0.13 | ≤1.20 | ≤0.30 | 8.0 ~ 10.5 | 0.85 ~ 1.20 | 0.15 ~ 0.30 | ≤0.80 |
| Nb | Cu | Al | N | S | P |
|
| 0.02 ~ 0.10 | ≤0.25 | ≤0.04 | 0.02 ~ 0.07 | ≤0.01 | ≤0.01 |
|
Pānui: Mn+Ni <1.5%
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 | ≥620 | ≥530 | ≥17 |
Iahiko e taunakitia ana:
| Te whānui o te tokotoko （mm） | 2.5 | 3.2 | 4.0 | 5.0 |
| Iahiko Whakarewa （A） | 60 ~ 90 | 90 ~ 120 | 130 ~ 170 | 170 ~ 210 |
Pānui:
1. Me tunu te hiko mō te 1 hāora i te 350℃ i mua i te mahi whakarewa;
2. He mea nui kia horoia te waikura, te unahi hinu, te wai, me ngā poke i runga i ngā wāhanga whakarewa i mua i te whakarewa.
3. Whakamahanahia te wāhanga whakarewa ki te 200 ~ 260°C i mua i te whakarewatanga, ā, kia mau tonu te pāmahana whakawhiti e rite ana;
4. Whakamatao mārire ki te 80 ~ 100°C mō ngā hāora e 2 i muri i te whakarewanga; ki te kore e taea te mahi i te maimoatanga wera i te wā e taea ai, ka taea te mahi i te maimoatanga tango hauwai i te 350°CX 2 hāora.
