Molybdenum ati Chromium Molybdenum Ooru Resistant Irin Welding Electrode
R306Fẹ
GB/T E5518-B2
Aws A5.5 E8018-B2
Apejuwe: R306Fe jẹ elekiturodu irin ti o ni igbona ooru pearlitic pẹlu erupẹ irin ati kekere iru iṣuu hydrogen potasiomu ti o ni 1% Cr - 0.5% Mo. Mejeeji AC ati DC le ṣee lo, ati pe o le welded ni gbogbo awọn ipo pẹlu iṣẹ arc kukuru.Awọn preheating ti awọn weldment ati awọn interlayer otutu ni o wa 160 ~ 250 °C nigba alurinmorin.
Ohun elo: Ti a lo fun alurinmorin ti 1% Cr – 0.5% Mo pearlitic ooru-sooro irin (bii 15CrMo), gẹgẹ bi awọn igbomikana alapapo dada oniho pẹlu iwọn otutu ṣiṣẹ labẹ 550 ° C, nya oniho ati awọn ohun elo titẹ pẹlu iwọn otutu ṣiṣẹ ni isalẹ 520 ° C , ati be be lo O le ṣee lo fun alurinmorin ti 30CrMnSi irin simẹnti.
Apapọ kemikali ti irin weld (%):
C | Mn | Si | Cr | Mo | S | P |
0.05 ~ 0.12 | 0.50 ~ 0.90 | ≤0.50 | 1.00 ~ 1,50 | 0.40 ~ 0.65 | ≤0.030 | ≤0.030 |
Awọn ohun-ini ẹrọ ti irin weld:
Ohun elo idanwo | Agbara fifẹ Mpa | Agbara ikore Mpa | Ilọsiwaju % | Iye ipa (J) Iwọn otutu deede. |
Ẹri | ≥540 | ≥440 | ≥47 | ≥27 |
Idanwo | 550 ~ 640 | ≥450 | 20 ~ 28 | 105 ~ 150 |
Akoonu hydrogen tan kaakiri ti irin ti a fi silẹ: ≤6.0mL/100g (ọna glycerin)
Ayewo X-ray: Mo ite
Iṣeduro lọwọlọwọ:
Opa opin (mm) | 3.2 | 4.0 | 5.0 |
Alurinmorin Lọwọlọwọ (A) | 100 ~ 130 | 140 ~ 180 | 180 ~ 210 |
Akiyesi:
1. Awọn elekiturodu gbọdọ wa ni ndin fun 1 wakati ni ayika 350 ℃ ṣaaju ki o to alurinmorin isẹ;
2. O ṣe pataki lati nu ipata, iwọn epo, omi, ati awọn impurities lori awọn ẹya alurinmorin ṣaaju ṣiṣe alurinmorin.