Eletise Fa'apipi'i U'amea Fa'a'ele'ele Maualalo
J707
GB/T E7015-D2
AWS E10015-D2
Fa'amatalaga: O le J707 o se eletise u'amea malosi maualuga e maualalo le u'amea ma le ufiufi maualalo le hydrogen sodium. E fa'aaoga le DCEP (direct current electrode positive), ma e mafai ona fa'apipi'i i tulaga uma. A mana'omia, e mafai ona fa'amafanafana muamua mea fa'apipi'i a'o le'i fa'apipi'i ma fa'amalūlūina pe a uma ona fa'apipi'i.
Fa'aoga: E fa'aaogaina tele mo le fa'avevela o le 15MnMoV, 14MnMoVB, 18MnMoNb ma isi fausaga u'amea e maualalo le u'amea. E mafai ona galue le fausaga fa'avevela i lalo o le tulaga o le fa'avevela po'o le fa'amaluluina (500 ~ 650 ℃).
Fa'asologa fa'akemikolo o le u'amea fa'apipi'i (%):
|
| C | Mn | Si | Mo | S | P |
| Fa'amaonia | ≤0.15 | 1.65 ~ 2.00 | ≤0.60 | 0.25 ~ 0.45 | ≤0.035 | ≤0.040 |
| Ua uma ona tofotofoina | 0.073 | 1.68 | 0.54 | 0.40 | 0.011 | 0.018 |
Uiga fa'amekanika o le u'amea fa'apipi'i:
| Mea fa'ata'ita'i | Malosiaga o le tensile Mpa | Malosiaga o le fua Mpa | Fa'aloloa % | Taua o le aafiaga (J) -30℃ |
| Fa'amaonia | ≥690 | ≥590 | ≥15 | ≥27 |
| Ua uma ona tofotofoina | 720 | 610 | 18.6 | — |
O le aofaʻi o le haitorosene ua faʻasalalauina i le uʻamea ua teuina: ≤4.0mL/100g (metotia glycerin)
Su'esu'ega X-ray: Vasega I
Taimi nei fautuaina:
| (mm) Lapo'a o le tootoo | 2.5 | 3.2 | 4.0 | 5.0 |
| (A) Tafega o le Uelo | 60 ~ 100 | 100 ~ 140 | 140 ~ 190 | 190 ~ 250 |
Fa'aaliga:
1. E tatau ona tao le eletise mo le 1 itula i le 350 ~380 ℃ a'o le'i fa'agaoioia le fa'apipi'iina;
2. E taua tele le fa'amamāina o le 'ele, le suau'u, le vai, ma mea leaga i vaega o le uelo a'o le'i ueloina;
3. Faaaoga le faiga o le short arc pe a uelo. E talafeagai le ala uelo vaapiapi.






