display know-how on:
SHAFTS AND BEARINGS
SCORED SHAFTS
Problem: Shaft bearing areas have been scored by slipping or failed bearings.
Belzona Solution: Rebuild the scored area with Belzona
systems, allowing a new bearing to be installed. This is done
without having to replace the shaft, and without heat, eliminating
the possibility of warping. Repairs are often performed in place,
without having to disassemble the machine or remove the shaft.
WORN KEYWAYS
Problem: The keyway has become worn and over-sized, causing
vibration, misalignment, and stress on couplings.
Belzona Solution: Reform the keyway with Belzona systems. Using the
key as a former, a perfect zero-tolerance fit is created. With no
possibility of movement and 100% contact across the faces,
mechanical power is transmitted smoothly from start-up to shut-down.
SCORED HYDRAULIC RAMS
Problem: The ram surface has become scored. Oil seals become torn
and hydraulic fluid is lost.
Belzona Solution: The score is ground out, filled, an reshaped using
Belzona systems. This is done locally, without welding, machining,
or rechroming. In many cases, the repair can be completed without disassembly.
LOOSE SPLINE HOUSINGS
Problem: The socket of a spline coupling has become loose, allowing
excess vibration, uneven power transmission, and damage to the male
spline.
Belzona Solution: Rebuild the socket with Belzona systems. The male
spline can be used to reform the intricate mating surfaces. This
will provide smooth mechanical transmission and 100% contact between
the couples parts.
LOOSE BEARING HOUSINGS
Problem: A bearing or bushing housing has become worn, allowing the
bearing to vibrate or become misaligned, or permitting a pin to
pound into the housing with each movement.
Belzona Solution: Rebuild the bearing housing with Belzona systems.
In many cases, the bushing or bearing itself can be used to reform
the housing in place, without disassembly, machining, or line boring.
CASINGS
STRIPPED THREADS
Problem: Over-tightening or corrosion has caused threads to become
loose or to strip out. Common areas for this are drain plugs, vents,
pump casings and engine blocks.
Belzona Solution: Rebuild or even recreate, stripped out threads
with Belzona systems, using the bolt or the plug itself as a former.
No welding, drilling, tapping, or thread inserts are required.
HOLED OR CRACKED CASINGS AND BLOCKS
Problem: A connecting rod thrown through the block wall, or a casing
that has cracked due to freezing without having been properly
drained. Such holes and cracks normally relegate casings to the
scrap heap.
Belzona Solution: Where the casing is still structurally sound,
Belzona systems can be used to repair the damage. Cracks, holes and
gaps can be bridged, and the repair will be completely resistant to
water, coolant, oil, many chemicals and high temperatures.
TANKS AND PIPING SYSTEMS
LEAKING TANKS
Problem: Leaking or corroded seams are just one of the many causes
of tank leaks. Corrosion damage, product loss, ground contamination,
and costly clean-up are some of the results.
Belzona Solution:Leaking areas can be sealed quickly from the
outside using Belzona systems. Repairs can be made to metal,
fiberglass, concrete, rubber and even wood tanks.
LEAKING PIPES
Problem: Corrosion, impact, and abrasion cause leaks in pipes
carrying water, oil, chemicals, compressed air, powders and
slurries.
Belzona Solution: Belzona systems can repair these leaks, providing
fast back-to-service time, as well as high chemical and abrasion resistance.
RUBBER COMPONENTS
DAMAGED HOSES AND CABLE COVERINGS
Problem: Constant wear or mechanical damage has removed the outer
rubber layer from hoses, cables or electrical conductors.
Belzona Solution: Rather than replacing or splicing in a new
section, Belzona systems can be used to repair the damaged area. No
heat or vulcanizing is required, and the repairs can normally be carried out on site.
DAMAGED RUBBER LININGS
Problem: Damage to the rubber lining has allowed the liquid to work
behind the lining. This will destroy the bond, and allow corrosion
and chemical attack to destroy the tank wall.
Belzona Solution: The existing lining and tank wall can be repaired
using Belzona systems. The original lining must be removed back to
where it is still firmly bonded. If the lining needs to be entirely
replaced, one of the chemical-resistant Belzona coating systems may be the solution.
CONVEYOR SYSTEMS
BELT FASTENERS
Problem: Belt fasteners have become damaged by abrasive material on
the belt, allowing particles to fall between clips. These are also
areas where bacteria can grow.
Belzona Solution: The fasteners can be covered with a fast-acting,
cold-curing Belzona system, providing protection against abrasion
and corrosion. Protecting the bottom of the fasteners can prevent damage to drive rollers.
TORN CONVEYOR BELTS
Problem: A rip or tear has occurred in the belting.
Belzona Solution: Belzona systems can be used to effectively repair
the damage without removing the belt, and without hot vulcanizing
equipment.
The "cold vulcanized" repair can be ready for use in less than two
hours under normal conditions.
PUMPS AND VALVES
EROSION/CORROSION DAMAGE
Problem: Erosion, coupled with corrosion, entrainment, and
cavitation, have worn the interior surfaces of fluid handling
equipment. Efficiency and output are down, while costs are up.
Belzona Solution: Erosion damage may be rebuilt without welding.
Flow contours and wear ring seats can be recreated without
machining. Most repairs can be carried out where machinery sits.
EROSION/CORROSION PROTECTION
Problem: After damaged areas are rebuilt, the potential exists for
erosion/corrosion to continue its attack on other areas.
Belzona Solution: Belzona systems are applied as coatings to casings
already rebuilt. They can also be applied to new or undamaged
casings and impellers as part of a preventive maintenance program.