Tsawg Alloy Steel Vuam Electrode
j707 ua
GB/T E7015-D2
AWS E10015-D2
Nqe lus piav qhia: J707 yog cov hlau tsis tshua muaj zog hlau electrode nrog qis-hydrogen sodium txheej.Siv DCEP (cov khoom siv hluav taws xob ncaj qha tam sim no), thiab tuaj yeem txuas rau txhua txoj haujlwm.Thaum tsim nyog, weldments tuaj yeem preheated ua ntej vuam thiab tempered tom qab vuam.
Daim ntawv thov: Feem ntau yog siv rau vuam 15MnMoV, 14MnMoVB, 18MnMoNb thiab lwm yam uas tsis muaj alloy steel qauv.Cov qauv welded tuaj yeem ua haujlwm nyob rau hauv cov xwm txheej ntawm vuam lossis tempering (500 ~ 650 ℃).
Tshuaj muaj pes tsawg leeg ntawm weld hlau (%):
| C | Mn | Si | Mo | S | P |
lav | ≤ 0.15 | 1.65-2.00 Nws | ≤ 0.60 | 0.25 ~ 0.45 hli | ≤ 0.035 | ≤ 0.040 |
Kuaj | 0.073 ib | 1.68 ib | 0.54 ib | 0.40 Nws | 0.011 ib | 0.018 ib |
Mechanical zog ntawm weld hlau:
Cov khoom kuaj | Tensile zog Mpa | Yield zog Mpa | Elongation % | Tus nqi cuam tshuam (J) -30 ℃ |
lav | ≥690 | ≥590 | ≥15 | ≥ 27 |
Kuaj | 720 | 610 | 18.6 ib | — |
Diffusion hydrogen ntsiab lus ntawm deposited hlau: ≤4.0mL / 100g (glycerin method)
X-ray kuaj: qib kuv
Pom zoo tam sim no:
(mm) Qws txoj kab uas hla | 2.5 | 3.2 | 4.0 | 5.0 |
(A) Vuam tam sim no | 60 ~ 100 | 100 ~ 140 hli | 140-190 ib | 190-250 Nws |
Daim ntawv ceeb toom:
1. Cov electrode yuav tsum tau ci rau 1 teev ntawm 350 ~ 380 ℃ ua ntej vuam ua haujlwm;
2. Nws yog ib qho tseem ceeb los ntxuav cov xeb, roj nplai, dej, thiab impurities ntawm vuam qhov chaw ua ntej vuam;
3. Siv luv arc ua haujlwm thaum vuam.Txoj kev nqaim welding yog tsim nyog.