Ƙananan AlloyWalda na KarfeElektrode
J707Ni
GB/T E7015-G
AWS E10015-G
Bayani: J707Ni wani lantarki ne mai ƙarfin ƙarfe mai ƙarancin ƙarfe mai laushi tare 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 yana da kyawawan halaye na injiniya. Idan aka kwatanta da wutar lantarki ta J707, babban fasalin J707Ni shine cewa an inganta ƙarfin ƙarancin zafin jiki da juriyar fashewa sosai.
Aikace-aikace: Ana amfani da shi don walda tsarin ƙarfe mai ƙarfi mai ƙarancin ƙarfe mai matakan ƙarfi daidai, kamar 14MnMoVB, WEL-TEN70 da HW56 na Japan da sauran tsarin ƙarfe mai ƙarfi mai ƙarancin ƙarfe.
Sinadarin sinadarai na ƙarfen walda(%):
| 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 |
Kayan aikin injiniya na ƙarfe na walda:
|
Gwaji abu |
Ƙarfin tauri Mpa |
Ƙarfin bayarwa Mpa |
Ƙarawa % |
Ƙimar tasiri (J) | |
| -40℃ | -50℃ | ||||
|
An Garanti | ≥690 | ≥590 | ≥15 | — | ≥27 |
|
An gwada | 760 | 630 | 23 | 140 | — |
Yaɗuwar sinadarin hydrogen a cikin ƙarfe da aka ajiye: ≤4.0mL/100g (hanyar glycerin)
Dubawar X-ray ta I: I maki
Shawarar da ake bayarwa:
| (mm) Diamita na sanda | 2.5 | 3.2 | 4.0 | 5.0 |
| (A) Walda na Wuta | 60 ~ 100 | 100 ~ 140 | 140 ~ 190 | 190 ~ 250 |
Sanarwa:
1. Dole ne a gasa wutar lantarki na tsawon awa 1 a zafin 350 ~380℃ kafin a fara aikin walda;
2. Yana da mahimmanci a tsaftace tsatsa, ma'aunin mai, ruwa, da ƙazanta a kan sassan walda kafin walda;
3. Yi amfani da aikin gajeriyar baka lokacin walda. Hanyar walda mai kunkuntar ta dace.






