Molybdenum ndi Chromium Molybdenum Heat Resistant Steel Welding Electrode
R306 pa
GB/T E5518-B2
AWS A5.5 E8018-B2
Kufotokozera: R306Fe ndi pearlitic chitsulo chosagwira magetsi electrode ndi chitsulo ufa ndi otsika hydrogen potaziyamu mtundu zokutira muli 1% Cr - 0.5% Mo. Onse AC ndi DC angagwiritsidwe ntchito, ndipo akhoza welded m'malo onse ndi yochepa arc ntchito.The preheating wa weldment ndi kutentha interlayer ndi 160 ~ 250 °C pa kuwotcherera.
Ntchito: Ntchito kuwotcherera wa 1% Cr - 0.5% Mo pearlitic kutentha zosagwira zitsulo (monga 15CrMo), monga boiler Kutentha pamwamba mapaipi ndi kutentha ntchito pansi 550 ° C, mapaipi nthunzi ndi zotengera kuthamanga ndi kutentha ntchito pansi pa 520 ° C , etc. Angagwiritsidwe ntchito kuwotcherera wa 30CrMnSi castings zitsulo.
Chemical zikuchokera weld zitsulo (%):
C | Mn | Si | Cr | Mo | S | P |
0.05 ~ 0.12 | 0.50 ~ 0.90 | ≤0.50 | 1.00 ~ 1.50 | 0.40 ~ 0.65 | ≤0.030 | ≤0.030 |
Zimango za weld zitsulo:
Yesani chinthu | Kulimba kwamakokedwe Mpa | Zokolola mphamvu Mpa | Elongation % | Mtengo (J) Normal Temp. |
Zotsimikizika | ≥540 | ≥440 | ≥47 | ≥27 |
Kuyesedwa | 550 ~ 640 | ≥450 | 20-28 | 105 ~ 150 |
Kuphatikizika kwa haidrojeni muzitsulo zoyikidwa: ≤6.0mL/100g (njira ya glycerin)
Kuwunika kwa X-ray: Ndimapanga
Zomwe tikulimbikitsidwa:
Ndodo diameter (mm) | 3.2 | 4.0 | 5.0 |
Welding Current (A) | 100 ~ 130 | 140 ~ 180 | 180 ~ 210 |
Zindikirani:
1. Elekitirodi iyenera kuphikidwa kwa ola limodzi mozungulira 350 ℃ isanayambe ntchito yowotcherera;
2. Ndikofunikira kuyeretsa dzimbiri, sikelo yamafuta, madzi, ndi zonyansa pazigawo zowotcherera musanayambe kuwotcherera.