Procedure

1.       D P test on original crack

2.       Drillingof 8 mm holes at the ends of the crack.

3.       V grove preparation by gouging with lotherme 802 and grinding.

4.       Pre-heated the job upto 150° cen

5.       Roote layer started with loth 352, 3.15 mm 

6.       After root run grinding, d p test,

7.       Againe pre-heated the job upto 150° cen

8.       Multy layers started with  lotherme 352, 4.00 mm  and final 2 layer with lotherme 510 n

9.       In side back gouging by grinding & dp test,

10. Inside welding with  lotherme 352, and lotherme 510 n