Electrode Yesimbi Yekushongedza Yesimbi Yakaderera
J707
GB/T E7015-D2
AWS E10015-D2
Tsananguro: J707 ielectrode yesimbi ine simba rakawanda ine hydrogen sodium coating shoma. Shandisa DCEP (direct current electrode positive), uye inogona kusungirirwa munzvimbo dzese. Kana zvichidikanwa, ma weldments anogona kupiswa usati wabatanidza uye kupiswa mushure mekusanganisa.
Mashandisirwo: Inonyanya kushandiswa pakusanganisa 15MnMoV, 14MnMoVB, 18MnMoNb nedzimwe simbi dzine simbi shoma. Chimiro chakasungirirwa chinogona kushanda kana chakasungirirwa kana kupiswa (500 ~ 650 ℃).
Kuumbwa kwemakemikari esimbi ye weld (%):
|
| C | Mn | Si | Mo | S | P |
| Yakavimbiswa | ≤0.15 | 1.65 ~ 2.00 | ≤0.60 | 0.25 ~ 0.45 | ≤0.035 | ≤0.040 |
| Yakaedzwa | 0.073 | 1.68 | 0.54 | 0.40 | 0.011 | 0.018 |
Hunhu hwesimbi ye weld:
| Chinhu chekuyedza | Simba rekusimba Mpa | Simba rekupa Mpa | Kureba % | Kukosha kwemhedzisiro (J) -30℃ |
| Yakavimbiswa | ≥690 | ≥590 | ≥15 | ≥27 |
| Yakaedzwa | 720 | 610 | 18.6 | — |
Kupararira kwehydrogen musimbi yakachengetwa: ≤4.0mL/100g (nzira yeglycerin)
Kuongororwa kweX-ray: Giredhi I
Inokurudzirwa yemagetsi:
| (mm) Dhayamita yetsvimbo | 2.5 | 3.2 | 4.0 | 5.0 |
| (A) Welding Current | 60 ~ 100 | 100 ~ 140 | 140 ~ 190 | 190 ~ 250 |
Cherechedza:
1. Electrode inofanira kubikwa kweawa imwe pa350 ~380℃ isati yashandiswa pakunamira;
2. Zvakakosha kuchenesa ngura, mafuta, mvura, uye tsvina pazvikamu zvekunamira usati wanamira;
3. Shandisa nzira pfupi yekupinza simbi pakusanganisa simbi. Nzira yakamanikana yekusanganisa simbi ndiyo yakakodzera.
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