Low Alloy Irin Welding Electrode
J707
GB/T E7015-D2
Aws E10015-D2
Apejuwe: J707 jẹ elekiturodu irin-giga ti o ni agbara-kekere ti o ni iwọn iṣuu soda ti o ni kekere-hydrogen.Lo DCEP (taara ti isiyi elekiturodu rere), ati ki o le ti wa ni welded ni gbogbo awọn ipo.Nigbati o ba jẹ dandan, awọn alurinmorin le jẹ preheated ṣaaju ki o to alurinmorin ati tempered lẹhin alurinmorin.
Ohun elo: Ni akọkọ ti a lo fun alurinmorin 15MnMoV, 14MnMoVB, 18MnMoNb ati awọn ẹya irin alloy kekere miiran.Awọn welded be le ṣiṣẹ labẹ awọn majemu ti alurinmorin tabi tempering (500 ~ 650 ℃).
Apapọ kemikali ti irin weld (%):
|
| C | Mn | Si | Mo | S | P |
| Ẹri | ≤0.15 | 1.65 ~ 2.00 | ≤0.60 | 0.25 ~ 0.45 | ≤0.035 | ≤0.040 |
| Idanwo | 0.073 | 1.68 | 0.54 | 0.40 | 0.011 | 0.018 |
Awọn ohun-ini ẹrọ ti irin weld:
| Ohun elo idanwo | Agbara fifẹ Mpa | Agbara ikore Mpa | Ilọsiwaju % | Iye ipa (J) -30 ℃ |
| Ẹri | ≥690 | ≥590 | ≥15 | ≥27 |
| Idanwo | 720 | 610 | 18.6 | - |
Akoonu hydrogen tan kaakiri ti irin ti a fi silẹ: ≤4.0mL/100g (ọna glycerin)
Ayewo X-ray: Mo ite
Iṣeduro lọwọlọwọ:
| (mm) Opa opin | 2.5 | 3.2 | 4.0 | 5.0 |
| (A) Alurinmorin Lọwọlọwọ | 60 ~ 100 | 100 ~ 140 | 140 ~ 190 | 190 ~ 250 |
Akiyesi:
1. Awọn elekiturodu gbọdọ wa ni ndin fun 1 wakati ni 350 ~ 380 ℃ ṣaaju ki o to alurinmorin isẹ;
2. O jẹ pataki lati nu soke ipata, epo asekale, omi, ati impurities lori alurinmorin awọn ẹya ara ṣaaju ki o to alurinmorin;
3. Lo kukuru arc isẹ nigba alurinmorin.Awọn orin alurinmorin dín to dara.
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