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| ESAB RUF-KUT |
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| Rugged overlay alloy with tungsten carbide particles
for maximum abrasion resistance |
| Esab Ruf-Kut deposits hard tungsten carbide in a tough
but ductile nickel-silver matrix that results in maximum
abrasion and impact resistance from media like sand,
earth, gravel and other minerals. This gives rise to a
superior cutting action. |
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| The carbides are angular and varied in size embedded
in the matrix, which resists extensive compressive
stresses and impact loading. |
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| High tensile strength and shear strength provides shockabsorbing
characteristics. Good tinning qualities. |
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| APPLICATIONS |
| 'Widely used in oil, earth moving, agriculture, dredging,
brick and cement industries to overlay drills, reamers,
stabilizers, core bits, augers, mill hammers, plough
shares, dredge bucket lips, crusher rolls, mixer blades
and pipe forming shoes. |
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| PROPERTIES |
| Carbide hardness |
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1500 VHN |
| Matrix hardness |
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200 VHN |
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| PROCEDURE |
- The surface should be cleaned and degreased
- The surface is to be pre-tinned using the pure matrix
end
- A very large tip size to be used and the flame adjusted
to neutral for heating the tinned area
- The carbide-bearing end is introduced into the
flame and the alloy is allowed to melt and flow on to the substrate. The temperature of bonding is 750-
800°C
- The carbide deposition to be uniformly maintained
by rotating the rod
- The work should be continued to heat, slightly ahead
of the overlay
- Overheating is to be avoided
- Cooling should be slow and the flux residue has to
be removed
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| CARBIDE MESH SIZES |
| -3.2 mm to + 1.5 mm |
| -5.0 mm to + 3.2 mm |
| -6.0 mm to + 5.0 mm |
| -10.0 mm to + 6.0 mm |
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| More Info... |
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