BONDRITE® 1/8" dia. Ni-Al Bonding Wire
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SPECIFICATION:
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A composite Nickel-Aluminum wire to spray as a bondcoat
in the Oxy-Acetylene wire-spray metallizing process. Typically 80% Ni and 20% Al,
which is made up of a 0.090" dia Nickel wire covered with a sheath of Aluminum 0.015" thick
to give a final diameter of 0.12". This wire is drawn through a diamond die and checked
with a two axis laser mike for accuracy in diameter.
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PHYSICAL APPEARANCE:
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A bright Aluminum tubular wire containing a solid Nickel core wire with an open butt seam.
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BOND STRENGTH:
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As per lab reports, there was a failure of the adhesive in all three samples, one slightly
below 12,000 p.s.i. and two well above 12,000 p.s,i, with a 0.009" coating.
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COATING APPEARANCE:
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A 200X micro of a 0.005" coating of BONDRITE bondcoat over a
steel substrate shows very good alloying at the interface.
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ADVANTAGES:
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This wire sprays at a higher speed of about 8 lbs per hour compared to 5 lbs for the
currently available Ni-Al wire and gives an extremely homogeneous spray pattern. Also unlike
the wire with petletized Nickel powder core inside an Aluminum tube, this wire does not spit.
The older wire had a tendency to propel unmelted Nickel particles if the Aluminum sheath
burned out prematurely. This does not happen with BONDRITER as the solid Nickel wire cannot
shoot out unless it is melted and atomized by the compressed air jet before it is sprayed.
This in turn imparts very high bond strength to the coating, as proven by the lab report.
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PACKAGING:
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The wire is layer wound on 133/4" diameter spools with a weight of about 10 lbs
each. Special packaging with a weight of 5 Kgs for the export market can be done at no
additional cost for a reasonable quantity if requested at the time of placing the order.
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