1.6mm, 2.0mm Thermal Spray Wire NiAl20 Grade Nickel based alloy
wire
Nickel based alloy wire
PRODUCT OVERVIEW
Thermal spraying techniques are coating processes in which melted
(or heated) materials are sprayed onto a surface.The "feedstock" (coating precursor) is heated by electrical (plasma
or arc) or chemical means (combustion flame).Thermal spraying can
provide thick coatings (approx. thickness range is 20 micrometers
to several mm, depending on the process and feedstock), over a
large area at high deposition rate as compared to other coating
processes such aselectroplating, physical and chemical vapor
deposition. Coating materials available for thermal spraying include metals,alloys, ceramics, plastics and composites. They are
fed in powder or wire form, heated to a molten or semimolten state
and accelerated towards substrates in the form of micrometer-size
particles.
Combustion or electrical arc discharge is usually used as the
source of energy for thermal spraying. Resulting coatings are made
by the accumulation of numerous sprayed particles. The surface may
not heat up significantly, allowing the coating of flammable
substances.
Coating quality is usually assessed by measuring its porosity,
oxide content, macro and micro-hardness, bond strength andsurface
roughness. Generally, the coating quality increases with increasing
particle velocities.
Several variations of thermal spraying are distinguished:
Plasma spraying
Detonation spraying
Wire arc spraying
Flame spraying
High velocity oxy-fuel coating spraying (HVOF)
Warm spraying
Cold spraying
Our company use Vaccum furnace and casting control to mak the NiAl
alloy solid wire, it is specially used for arc spray boning layer.
This wire has stable chemical composition, low oxgen and high
bonding strength.
| Chemical Composition | Coating Strength (Mpa) | Melting temp (c) | Coating Hardness (HRC) |
| Ni 95% Al 5% | 65-68 | 1010 | 23-25 |
Applying technique: Arc spray
Specification of wire: 1.6mm, 2.0mm, 15kg/spool
NiAl20 is a cored wire specifically designed for either arc
spraying or flame spraying. It is self-bonding to most materials
and requires minimal surface spreparation. Bond strengths in excess
of 9000 psi
