J507FeNi yog cov hlau tsis tshua muaj hlau vuam electrode nrog Fe hmoov low-hydrogen sodium txheej uas siv DCEP txoj kev txuas. Cov khoom yog tsim los rau txhua txoj haujlwm welding thiab muaj kev ua haujlwm zoo heev ntawm vuam thiab ua haujlwm zoo rau qhov kub thiab txias.
Lub hom phiaj
Nws muaj feem xyuam rau cov vuam kub tsis tshua muaj steel siab hlab ntsha, xws li 16MnDR.
Chemical Cheebtsam ntawm deposited hlau (%)
|
Cov khoom kuaj |
C |
Mn |
Si |
S |
P |
Ni |
| Piv txwv tus nqi | 0.070 | 1.12 | 0.35 | 0.006 | 0.016 | 1.40 |
Mechanical zog ntawm deposited hlau (620 degree × 1h kho cua sov)
|
Cov khoom kuaj |
Rm |
ReL/Rp0.2 |
A |
KV2(J) |
|
-40 degree |
||||
| Piv txwv tus nqi | 575 | 460 | 30 | 140 |
X-ray flaw detection yuav tsum muaj: Qib I
Kev siv tam sim no (DC +)
|
Vuam electrode txoj kab uas hla (mm) |
Φ3.2 |
Φ4.0 |
Φ5.0 |
| Vuam tam sim no (A) | 90-120 | 120-180 | 160-210 |
Cov kev ceev faj
1. Lub vuam electrode yuav tsum tau ci ntawm li 350 degree rau 1h ua ntej vuam, thiab nws yuav tsum tau preheated tsuas yog thaum siv.
2. Cov impurities xws li xeb, roj stain thiab noo noo yuav tsum tau tshem tawm ntawm qhov chaw ua haujlwm ua ntej vuam.
Vuam txoj hauj lwm
Cim npe nrov: e7018 ac carbon steel muab tub lim, Tuam Tshoj e7018 ac carbon steel muab tub lim lwm tus neeg