Molybdenum na Chromium Molybdenum Ubushyuhe bwo kurwanya ibyuma byo gusudira Electrode
R717
AWS A5.5 E9015-B9
Ibisobanuro: R717 ni electrode irwanya ubushyuhe hamwe na sodium ya hydrogène nkeya irimo 9% Cr - 1% Mo-V-Nb.Koresha DCEP (itaziguye ya electrode nziza) kandi irashobora gusudira mumyanya yose.Bitewe no kongeramo umubare muto wa Nb na V, icyuma cyabitswe gifite ubushyuhe buhanitse bwo guhangana nubushyuhe.
Gushyira mu bikorwa: Ikoreshwa mu gusudira umuyoboro ushyushye cyane hamwe n’imitwe yubushyuhe bwo hejuru hamwe n’umuvuduko mwinshi, nka A213-T91 / A335-P1 (T / P91), A387Cr, 91 nizindi nyubako zirwanya ubushyuhe.
Ibigize imiti yicyuma (%):
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 |
|
Icyitonderwa: Mn + Ni < 1.5%
Ibikoresho bya tekinike yicyuma gisudira:
Ikizamini | Imbaraga Mpa | Tanga imbaraga Mpa | Kurambura % |
Bijejwe | 20620 | 30530 | ≥17 |
Icyifuzo kigezweho:
Diameter (Mm) | 2.5 | 3.2 | 4.0 | 5.0 |
Kuzenguruka A) | 60 ~ 90 | 90 ~ 120 | 130 ~ 170 | 170 ~ 210 |
Icyitonderwa:
1. Electrode igomba gutekwa kumasaha 1 kuri 350 ℃ mbere yo gusudira;
2. Ni ngombwa guhanagura ingese, igipimo cyamavuta, amazi, n’umwanda ku bice byo gusudira mbere yo gusudira.
3. Shyushya igice cyo gusudira kuri 200 ~ 260 ° C mbere yo gusudira, kandi ugumane ubushyuhe bwa interpass;
4. Buhoro buhoro kugeza 80 ~ 100 ° C mumasaha 2 nyuma yo gusudira;niba kuvura ubushyuhe bidashobora gukorwa vuba bishoboka, kuvura dehydrogenation birashobora gukorwa kuri 350 ° CX 2h.