Low AlloyWelding KarfeElectrode
J707Ni
GB/T E7015-G
Saukewa: AWS E10015-G
Bayani: J707Ni ƙaramin ƙarfe ne 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.Ƙarfe mai ajiya yana da kyawawan kayan aikin injiniya.Idan aka kwatanta da lantarki na J707, babban fasalin J707Ni shine cewa ƙananan zafin jiki da ƙarfin ƙarfi sun inganta sosai.
Aikace-aikacen: An yi amfani da shi don walda ƙananan ƙananan ƙarfe mai ƙarfi mai ƙarfi na matakan ƙarfi masu dacewa, kamar 14MnMoVB, WEL-TEN70 da Jafananci HW56 da sauran ƙananan ƙarfe mai ƙarfi mai ƙarfi.
Abubuwan sinadaran na weld karfe(%):
| C | Si | Mn | Ni | Mo | Cr | S | P |
| ≤0.10 | ≤0.60 | ≥1.00 | 1.80 ~ 2.20 | 0.40 ~ 0.60 | ≤0.20 | ≤0.030 | ≤0.030 |
Abubuwan kayan aikin walda:
|
Gwaji abu |
Ƙarfin ƙarfi Mpa |
Ƙarfin bayarwa Mpa |
Tsawaitawa % |
Ƙimar tasiri (J) | |
| -40 ℃ | -50 ℃ | ||||
|
Garanti | ≥ 690 | ≥590 | ≥15 | - | ≥27 |
|
An gwada | 760 | 630 | 23 | 140 | - |
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.
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