Tsawg AlloyHlau VuamHluav taws xob
j707 ib
GB/T E7015-G
AWS E10015-G
Nqe lus piav qhia: J707Ni 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.Deposited hlau muaj zoo mechanical zog.Piv nrog rau J707 electrode, lub ntsiab feature ntawm J707Ni yog tias qhov kub tsis tshua muaj toughness thiab tawg kuj tau zoo heev.
Daim ntawv thov: Siv rau vuam low-alloy high-strength steel qauv ntawm cov theem sib xws, xws li 14MnMoVB, WEL-TEN70 thiab Japanese HW56 thiab lwm yam low-alloy high-strength steel lug.
Tshuaj muaj pes tsawg leeg ntawm weld hlau (%):
| C | Si | Mn | Ni | Mo | Cr | S | P |
| ≤ 0.10 | ≤ 0.60 | ≥1.00 Nws | 1.80 ~ 2.20 Nws | 0.40-0.60 Nws | ≤ 0.20 | ≤ 0.030 | ≤ 0.030 |
Mechanical zog ntawm weld hlau:
|
Cov khoom kuaj |
Tensile zog Mpa |
Yield zog Mpa |
Elongation % |
Tus nqi cuam tshuam (J) | |
| -40 ℃ | -50 ℃ | ||||
|
lav | ≥690 | ≥590 | ≥15 | — | ≥ 27 |
|
Kuaj | 760 ib | 630 | 23 | 140 | — |
Diffusion hydrogen ntsiab lus ntawm deposited hlau: ≤4.0mL / 100g (glycerin method)
I 级 X-ray kuaj: Kuv qib
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.
