Cast iron has typically been difficult to repair due to the sensitivity of the nickel rod in the cool down process--the nickel rod causes alot of re-cracking as it hardens.
On heavy machinery, cast iron welding is a must, as parts are expensive and easy to find on demand. A machine that breaks down today may not be running for several weeks if you have to wait for parts.
This crack in a cast iron CASE engine block measured 15 inches long, with the center measuring one inch high. The crack was caused by a thrown rod, and replacement was not an option.
Karl bevels the crack to prep the area.
Ready to weld.
We begin by welding the length of the crack with 77 cast iron welding rod.
Larger areas are easily repaired by running pass after pass until filled.
Another successful repair made possible by our 77 cast iron electrode.
