I-Low Temperature SteelUkushiselaI-Electrode
W707Ni
I-GB/T E5515-C1
Incazelo: I-W707Ni i-electrode yensimbi enezinga lokushisa eliphansi equkethe i-Ni endaweni ephansi ye-hydrogen sodium.Sebenzisa i-DCEP (i-electrode yamanje eqondile) futhi ingashiselelwa kuzo zonke izikhundla.Insimbi efakiwe isenokuqina okuhle komthelela ku -70°C.
Isicelo: Isetshenziselwa ukushisela insimbi yokushisa ephansi efana ne-2.5Ni.
Ukwakheka kwamakhemikhali ensimbi ye-weld(%):
| C | Mn | Si | Ni | S | P |
| ≤0.12 | ≤1.25 | ≤0.60 | 2.00 ~ 2.75 | ≤0.020 | ≤0.025 |
Izici zemishini ye-weld metal:
| Into yokuhlola | Amandla aqinile Mpa | Amandla esivuno Mpa | Ukwelula % | Inani lomthelela (J) -70 ℃ |
| Kuqinisekisiwe | ≥540 | ≥440 | ≥17 | ≥27 |
Okuqukethwe kwe-hydrogen yokusabalalisa kwensimbi efakiwe: ≤6.0mL/100g (indlela ye-glycerin) noma ≤10mL/100g (i-mercury noma indlela ye-gas chromatography)
Ukuhlolwa kwe-X-ray: I grade
Okwamanje okunconyiwe:
| (mm) Ububanzi benduku | 2.0 | 2.5 | 3.2 | 4.0 | 5.0 |
| (A) I-Welding Yamanje | 40 ~ 70 | 60 ~ 90 | 90 ~ 120 | 140 ~ 180 | 170 ~ 210 |
Isaziso:
- I-electrode kufanele ibhakwe ihora elingu-1 ku-350 ℃ ngaphambi kokusebenza kokushisela;
- Kubalulekile ukuhlanza okugqwalile, isikali sikawoyela, amanzi, nokungcola ezingxenyeni zokushisela ngaphambi kokushisela;
- Zama ukusebenzisa amandla kalayini omncane lapho ushisela, ungqimba oluningi kanye ne-multi-pass welding.
