Electrode e tlase ea Alloy Steel Welding
J707
GB/T E7015-D2
AWS E10015-D2
Tlhaloso: J707 ke electrode ea tšepe e nang le alloy e tlaase e nang le matla a tlaase a nang le sodium e tlaase ea hydrogen.Sebelisa DCEP (electrode e nepahetseng hona joale), 'me e ka chesetsoa maemong ohle.Ha ho hlokahala, litšepe li ka futhumatsoa pele ho tjheseletsa le ho halefa ka mor'a ho cheselletsa.
Kopo: Haholo-holo e sebelisetsoa ho tjheseletsa 15MnMoV, 14MnMoVB, 18MnMoNb le mehaho e meng ea tšepe e tlaase ea alloy.Sebopeho se cheselitsoeng se ka sebetsa tlas'a boemo ba ho cheselletsa kapa ho futhumatsa (500 ~ 650 ℃).
Sebopeho sa lik'hemik'hale tsa tšepe ea weld(%):
|
| C | Mn | Si | Mo | S | P |
| Guaranteed | ≤0.15 | 1.65 ~ 2.00 | ≤0.60 | 0.25 ~ 0,45 | ≤0.035 | ≤0.040 |
| Lekoa | 0.073 | 1.68 | 0.54 | 0.40 | 0.011 | 0.018 |
Mechine ea tšepe ea weld:
| Ntho ea teko | Matla a tšepe Mpa | Ho hlahisa matla Mpa | Elongation % | Boleng ba tšusumetso (J) -30 ℃ |
| Guaranteed | ≥690 | ≥590 | ≥15 | ≥27 |
| Lekoa | 720 | 610 | 18.6 | - |
Likahare tsa hydrogen tsa tšepe e kentsoeng: ≤4.0mL/100g (mokhoa oa glycerin)
Tlhahlobo ea X-ray: Ke ea sehlopheng
Nako e khothalelitsoeng:
| (mm) Bophara ba molamu | 2.5 | 3.2 | 4.0 | 5.0 |
| (A) Welding Current | 60 ~ 100 | 100 ~ 140 | 140 ~ 190 | 190 ~ 250 |
Tlhokomeliso:
1. Electrode e tlameha ho behoa ka hora e le 1 ho 350 ~ 380 ℃ pele ho ts'ebetso ea welding;
2. Ho bohlokoa ho hloekisa mafome, sekala sa oli, metsi le litšila likarolong tsa ho cheseletsa pele ho tjheseletsa;
3. Sebelisa ts'ebetso e khuts'oane ea arc ha u cheselletsa.Tsela e moqotetsane ea ho tjheseletsa e nepahetse.
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