Table 9-6.--Powdered Metal Alloys and Some of Their Uses
Powdered Metal Ahoy
Abrasion-resistant nickel-base ahoy for steel, stainless, nickel-base
alloys and cast irons. Corrosion resistant. Good hardness at high
Ahoy for a thin, rough surface that will abrade, grip, or resist.
Uniformly distributed tungsten carbide grit firmly anchored in a hard,
corrosion-, and heat-resistant nickel-base matric. Nonmachinable.
Cobalt-base ahoy overlay for steel, stainless, cast iron, and nickel
alloys. Corrosion and abrasion resistant. Holds hardness at high heat.
Severe abrasion-resistant ahoy overlay for steel, stainless steel, cast
iron, and nickel alloys. Tungsten carbide particles held in a nickel-base
High-strength, machinable ahoy for joining steels, copper, and
high-melting copper alloys. Copper-base ahoy deposits offer good
High-strength, joining ahoy for copper and copper alloys. Copper-base
ahoy with good corrosion resistance and excellent electrical
Abrasion-, corrosion-, and heat-resistant nickel-base ahoy overlay for
steel, nickel alloys, cast iron, and stainless. Crack-resistant deposits, for
both overlaying and joining, are machinable.
High-strength, corrosion-resistant nickel-base ahoy for joining or
cladding steels, stainless, cast irons, and nickel alloys. Excellent
tip will cause the torch to backfire; the weld deposit will
the optimum bonding and wetting of the deposit with
be blown away, and the torch tip may be damaged.
the surface of the workpiece.
These powders are contained in a bellows module
Cooling water is circulated around the tip of the torch,
preventing reflected heat from affecting it. This torch is
that locks directly into the torch. The unique bellows
action helps the flow of the powder through the torch.
often used to surface valve seats where the seat cannot
be removed from the valve body.
The modules are capped when not in use to prevent
SETTING UP THE POWDERED
Powdered metals are available to cover a wide
variety of applications. Table 9-6 contains some of the
different powders developed by the Eutectic Welding
Alloys Corporation. The ahoy chemistry and particle
When you assemble the powdered metal torch,
size of each powder assures complete metal-melt during
hand tighten the large threaded nut on the mixing
passage across the torch flame. It also makes certain of
chamber onto the torch body. (Synthetic O-rings are