Low Alloy Steel Welding Electrode
J707
GB/T E7015-D2
AWS E10015-D2
Kufotokozera: J707 ndi otsika aloyi mkulu-mphamvu zitsulo electrode ndi otsika-hydrogen sodium zokutira.Gwiritsani ntchito DCEP (mwachindunji panopa ma elekitirodi abwino), ndipo akhoza welded m'malo onse.Ngati kuli kofunikira, zowotcherera zimatha kutenthedwa musanawotchedwe ndi kutenthedwa pambuyo pakuwotcherera.
Ntchito: Makamaka ntchito kuwotcherera 15MnMoV, 14MnMoVB, 18MnMoNb ndi zina otsika aloyi zitsulo nyumba.The welded kapangidwe akhoza ntchito pansi chikhalidwe kuwotcherera kapena kutentha (500 ~ 650 ℃).
Chemical zikuchokera weld zitsulo (%):
|
| C | Mn | Si | Mo | S | P |
| Zotsimikizika | ≤0.15 | 1.65 ~ 2.00 | ≤0.60 | 0.25 ~ 0.45 | ≤0.035 | ≤0.040 |
| Kuyesedwa | 0.073 | 1.68 | 0.54 | 0.40 | 0.011 | 0.018 |
Zimango za weld zitsulo:
| Yesani chinthu | Kulimba kwamakokedwe Mpa | Zokolola mphamvu Mpa | Elongation % | Mtengo (J) -30 ℃ |
| Zotsimikizika | ≥690 | ≥590 | ≥15 | ≥27 |
| Kuyesedwa | 720 | 610 | 18.6 | - |
Kuphatikizika kwa haidrojeni muzitsulo zoyikidwa: ≤4.0mL/100g (njira ya glycerin)
Kuwunika kwa X-ray: Ndimapanga
Zomwe tikulimbikitsidwa:
| (mm) Ndodo diameter | 2.5 | 3.2 | 4.0 | 5.0 |
| (A) Welding Current | 60 ~ 100 | 100 ~ 140 | 140 ~ 190 | 190 ~ 250 |
Zindikirani:
1. Elekitirodi ayenera kuphika kwa ola 1 pa 350 ~ 380 ℃ pamaso kuwotcherera ntchito;
2. Ndikofunikira kuyeretsa dzimbiri, sikelo yamafuta, madzi, ndi zonyansa pazigawo zowotcherera musanawotchere;
3. Gwiritsani ntchito kachipangizo kakang'ono powotcherera.Njira yopapatiza yowotcherera ndiyoyenera.
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