Home
Company Profile
Services
Capacities/Line Card
Contact
Site Map

Ind Services & Repairs
Metalizing
Machine Shop Services
Welding and Fabrication
Marine Services
Millwright & Crane Service



Metalizing

We do metalizing and resurfacing. Metalizing is a process that applies a new metal surface to worn out parts without changing the metallurgical properties of the base material (also known as spray welding).  Metalizing provides wear resistance on virtually any surface.

THERMAL SPRAY PROCESS OVERVIEW

Thermal spray coating involves the use of a torch to heat a material, in powder or wire form, to a molten or near-molten state, and the use of a gas to propel the material to the target substrate, creating a completely new surface. The coating material may be a single element, alloy or compound with unique physical properties that are, in most cases, achievable only through the thermal spray process.

Thermal spray coatings are a highly cost-effective and straight-forward method for adding superior properties and performance qualities to a given engineering surface. The variety of products and coatings that can be enhanced by thermal spray are virtually limitless. The coatings are usually metallic, ceramic, carbides, or a combination of these materials to meet a range of physical criteria.

 

As a family of related technologies, each thermal spray process brings distinct advantages. This provides a high degree of flexibility to meet a wide array of application and production requirements. These processes include:

bullet

Atmospheric Plasma Spray

bullet

Champro® Controlled Atmosphere Plasma Spray

bullet

HVOF (High Velocity Oxy-Fuel) Spray, using either gas or liquid as the combustion fuel

bullet

Combustion Powder Thermospray®

bullet

Combustion Wire Spray

bullet

Electric Arc Wire Spray

COMBUSTION WIRE SPRAY PROCESS OVERVIEW

The Combustion Wire Spray process employs a set of drive rolls powered by an air turbine or an electric motor to draw a metal alloy wire through the combustion spray gun. At the gun nozzle, fuel gas of acetylene, propane, hydrogen or MAPP is mixed with oxygen in precise volumetric proportions using a siphon plug and ignited to create a flame, which is then shaped at the gun’s air cap by compressed air. The metal wire is fed concentrically into the flame, melted and atomized by the compressed air, and the molten droplets are propelled towards a prepared surface where they solidify and bond to the substrate to form a coating.


 

Combustion wire spray is a common choice for machine element repair and corrosion coatings. Either hard (higher melt temperature) or soft (lower melt temperature) wires can be used.


Key components of combustion wire spray system

Features of the Combustion Wire Spray Process:

bullet

Applies a range of metallic alloys and pure metals for restoration, corrosion coatings and other purposes

bullet

Configurations from economical manual systems to fully automated  production systems are available

bullet

Can be portable for on-site coatings

bullet

High spray rates with low gas consumption

bullet

Coatings can be machined to final dimensions and finish

bullet

Masking of areas that should not be coated is possible

bullet

Coating of internal geometries is possible

bullet

Very simple to operate and maintain

 

 

 

 

 

 

Back Next
Copyright © 2004  Meldrum Mechanical Services, Inc. All rights reserved.