Low Alloy Karfe Welding Electrode
J707
GB/T E7015-D2
Saukewa: AWS E10015-D2
Bayani: J707 shine ƙaramin ƙarfe mai ƙarfi mai ƙarfi na ƙarfe mai ƙarfi tare da murfin sodium low-hydrogen.Yi amfani da DCEP (tabbataccen lantarki na yanzu kai tsaye), kuma ana iya walda shi a duk wurare.A lokacin da ya cancanta, za a iya preheated welding kafin walda da kuma tempered bayan walda.
Aikace-aikace: Yafi amfani da waldi 15MnMoV, 14MnMoVB, 18MnMoNb da sauran low-alloy karfe Tsarin.A welded tsarin iya aiki a karkashin yanayin waldi ko tempering (500 ~ 650 ℃).
Abubuwan sinadaran na weld karfe(%):
| C | Mn | Si | Mo | S | P |
Garanti | ≤0.15 | 1.65 ~ 2.00 | ≤0.60 | 0.25 ~ 0.45 | ≤0.035 | ≤0.040 |
An gwada | 0.073 | 1.68 | 0.54 | 0.40 | 0.011 | 0.018 |
Abubuwan kayan aikin walda:
Gwaji abu | Ƙarfin ƙarfi Mpa | Ƙarfin bayarwa Mpa | Tsawaitawa % | Ƙimar tasiri (J) -30 ℃ |
Garanti | ≥ 690 | ≥590 | ≥15 | ≥27 |
An gwada | 720 | 610 | 18.6 | - |
Yadawa hydrogen abun ciki na ajiya karfe: ≤4.0mL/100g (glycerin hanya)
Duban X-ray: I grade
Shawarwari na yanzu:
(mm) da Diamita na sanda | 2.5 | 3.2 | 4.0 | 5.0 |
(A) Welding Current | 60 ~ 100 | 100 ~ 140 | 140 ~ 190 | 190 ~ 250 |
Sanarwa:
1. Dole ne a yi burodin lantarki don 1 hour a 350 ~ 380 ℃ kafin aikin walda;
2. Yana da mahimmanci don tsaftace tsatsa, sikelin mai, ruwa, da ƙazanta akan sassan walda kafin walda;
3. Yi amfani da gajeriyar aikin baka lokacin walda.kunkuntar waƙar walda ta dace.