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Using a drill jig, rows of blind holes are
drilled perpendicular to the direction of the crack, each row to act as a key.
partitions are removed with pneumatic chisel.
Metalock keys are
driven into the openings and caulked.
Holes for Metalock screws are drilled along the crack
between the keys.
screws are fitted so closely together that they overlap.
Finally, the entire installation is caulked to
ensure stability and pressure.
Metal-stitching process of damaged engine frame. This
type of repair is a life lasting repair.
cracked or otherwise damaged cast parts always represents a great challenge as
cast iron can only be welded to a limited extent. MAN PrimeServ On-site
Recovery uses a special Metalock/Masterlock procedure as a viable alternative
to welding that today is the preferred method in industry and marine shipping.
This procedure enables
us to specialise in the cold repair of damaged industrial components made from
cast iron, steel and aluminum. The Masterlock method is a cold-repair process
that avoids the stress problems frequently associated with welding and, more
importantly, maintains the original alignment, which lessens the requirement
for re-machining following repair.
International Association has developed and tested a new stainless key (MN555)
to facilitate component repair at high temperatures of up to 550 degrees
Celsius. The key is corrosion resistant and can also increase a repair’s return
Metalock/Masterlock procedure offers many advantages and: