D237
Description:
D237 is a low hydrogen sodium type CrMp vanadium type welding electrode, using DC reverse.
use:
For surfacing by sediment erosion and cavitation damage hydraulic machinery, dredging bucket, mining machinery parts.
Deposited metal chemical composition (%)
| C | Cr | Mo | V | Other elements of the total |
guarantee value | 0.30 ~ 0.60 | 8.00 ~ 10.00 | ≤3.00 | 0.50 ~ 1.00 | ≤4.00 |
Example value | 0.35 | 9.70 | 0.15 | 0.65 | - |
Surfacing hardness: HRC ≥ 50
Reference current (DC + )
Electrode diameter (mm) | φ3.2 | φ4.0 | φ5.0 |
Welding current (A) | 90 ~ 110 | 140 ~ 180 | 180 ~ 220 |
Precautions:
1. Before welding electrodes to be about 250 ℃ baking 1h.
2 large parts pre-welding should be preheated to about 300 ℃, and surfacing part of the surface rust and oil clean.
related articles
The number of clicks:Update time:2017/12/26 14:20:17【print this page】