Repair of cast iron & engine blocks re-building worn surfaces joining cast iron to steel.
Vaccum packing
1G 2F
1) Chip off base metal completely at the repairing part .
2) There is possiblity that cracks spreads or makes holes at both ends of repairing part .
3) Keep the weld metal length less than 50 mm (2 inch ) to disperse welding heat- adopt back steping stone or symmetry method by turns.
4) The preheat temprature vary in accordance with te size ,king and shape of the base metal 150°C is appropriate in general .
| C% | Mn% | Si% | S% | P% | Ni% | Cu% | Fe% |
|---|---|---|---|---|---|---|---|
| 0.70-1.30 | 0.60 Min | 0.60 Max | 0.030 Max | 0.030 Max | 64.0-70.0 | Bal. | 2.0-4.0 |
| U.T.S. (N/mm²) | ELONGATION ( L = 4d ) % |
|---|---|
| 300-400 | 150 BHN |
| SIZE ( mm ) | KG PER PACKET | KG PER CARTON | Current (Amps) | In Amps |
|---|---|---|---|---|
| 2.50 x 350 | 2 | 10 | AC/DC (+) | 60 – 70 |
| 3.15 x 350 | 2 | 10 | 70 – 100 | |
| 4.00 x 350 | 2 | 10 | 100 – 140 | |
| 5.00 x 350 | 2 | 10 |