D322 mould electrode accord with GB EDR CrMoWV-A1-03
Explanation: D322 is titanium calcium type medicine skin CrWMoV cold die facing electrode, and ac/dc, surfacing when electric arc stability, slag off easily.
USES: used for various surfacing cold die and cutting tools, also can be used to repair the requirements wear resistance of high mechanical parts.
Melt the deposited metal chemical composition (%) chemical composition C S P Mo Cr V W
Ensure value than 0.035 0.040 or 0.50 or 2.50 5.00 1.00 than than than 7.0 ~ 10.0
Hard facing layer hardness: (after welding air cold) HRC quartile 55
Reference current (AC, DC) electrode diameter (mm) φ 3.2 φ 4.0 φ 5.0
Welding current (A) 80-140 160-190 190-230
Note:
1. Before welding electrodes must be approved by 250 °C or so baking 1 h.
2. Need before welding workpiece preheat to 300 °C to above, in order to avoid the cracking
Die Electrode