Ƙananan Zafin Karfe Walda Electrode
W707
GB/T E5015-G
AWS A5.5 E7015-G
Bayani: W707 wani lantarki ne na ƙarfe mai ƙarancin zafin jiki wanda ke da rufin sodium mai ƙarancin hydrogen. Yi amfani da DCEP (mai nuna wutar lantarki kai tsaye) kuma ana iya haɗa shi a kowane matsayi. Karfe da aka ajiye har yanzu yana da ƙarfi mai kyau a -70°C.
Aikace-aikace: Ana amfani da shi don walda ƙarfe mai ƙarancin zafi kamar 2.5Ni.
Sinadarin sinadarai na ƙarfen walda(%):
| C | Mn | Si | Ni | S | P |
| ≤0.08 | ≤1.25 | ≤0.60 | 2.00 ~ 2.75 | ≤0.020 | ≤0.025 |
Kayan aikin injiniya na ƙarfe na walda:
| Gwaji abu | Ƙarfin tauri Mpa | Ƙarfin bayarwa Mpa | Ƙarawa % | Ƙimar tasiri (J) -70℃ |
| An Garanti | ≥490 | ≥390 | ≥22 | ≥27 |
Yaɗuwar sinadarin hydrogen a cikin ƙarfe da aka ajiye: ≤6.0mL/100g (hanyar glycerin) ko ≤10mL/100g (hanyar chromatography ta mercury ko gas)
Duba X-ray: I maki
Shawarar da ake bayarwa:
| (mm) Diamita na sanda | 2.0 | 2.5 | 3.2 | 4.0 | 5.0 |
| (A) Walda na Wuta | 40 ~ 70 | 70 ~ 100 | 90 ~ 120 | 140 ~ 180 | 170 ~ 210 |
Sanarwa:
1. Dole ne a gasa wutar lantarki na tsawon awa 1 a zafin 350℃ kafin a fara aiki da walda;
2. Yi ƙoƙarin amfani da ƙaramin ƙarfin layi yayin walda, walda mai layuka da yawa da walda mai wucewa da yawa.
