I-Electrode ephansi ye-Alloy Steel Welding
J707
I-GB/T E7015-D2
I-AWS E10015-D2
Incazelo: I-J707 iyi-electrode yensimbi ene-alloy ephansi ene-low-hydrogen sodium coating.Sebenzisa i-DCEP (i-electrode eqondile yamanje eqondile), futhi ingashiselwa kuzo zonke izikhundla.Uma kunesidingo, ama-welds angashiswa ngaphambi kokushisela futhi afudumale ngemuva kokushisela.
Isicelo: Ikakhulu isetshenziselwa ukushisela i-15MnMoV, 14MnMoVB, 18MnMoNb nezinye izakhiwo zensimbi ezine-alloy ephansi.Isakhiwo esishiselwe singasebenza ngaphansi kwesimo sokushisela noma sokushisa (500 ~ 650 ℃).
Ukwakheka kwamakhemikhali ensimbi ye-weld(%):
| C | Mn | Si | Mo | S | P |
Kuqinisekisiwe | ≤0.15 | 1.65 ~ 2.00 | ≤0.60 | 0.25 ~ 0.45 | ≤0.035 | ≤0.040 |
Ihloliwe | 0.073 | 1.68 | 0.54 | 0.40 | 0.011 | 0.018 |
Izici zemishini ye-weld metal:
Into yokuhlola | Amandla aqinile Mpa | Amandla esivuno Mpa | Ukwelula % | Inani lomthelela (J) -30 ℃ |
Kuqinisekisiwe | ≥690 | ≥590 | ≥15 | ≥27 |
Ihloliwe | 720 | 610 | 18.6 | - |
Okuqukethwe kwe-hydrogen okusabalaliswa kwensimbi efakiwe: ≤4.0mL/100g (indlela ye-glycerin)
Ukuhlolwa kwe-X-ray: I grade
Okwamanje okunconyiwe:
(mm) Ububanzi benduku | 2.5 | 3.2 | 4.0 | 5.0 |
(A) I-Welding Yamanje | 60 ~ 100 | 100 ~ 140 | 140 ~ 190 | 190 ~ 250 |
Isaziso:
1. I-electrode kufanele ibhakwe ihora elingu-1 ku-350 ~ 380 ℃ ngaphambi kokusebenza kokushisela;
2. Kubalulekile ukuhlanza okugqwalile, isikali sikawoyela, amanzi, nokungcola ezingxenyeni zokushisela ngaphambi kokushisela;
3. Sebenzisa ukusebenza kwe-arc emfushane lapho ushisela.Ithrekhi yokushisela emincane ilungile.