The Industry Leaders in Corrosion, Wear and Tear
ARANCO coatings are applied in all areas, Splash-zone Area of Riser Pipes / Jacket Legs / Conductors, External Pipe Spools / Valves / Fittings / Bends and External Flare Booms. Bridges, Tankers, Ship Decks, Piping, Steel Tanks, Auger Screws of all sizes. ARANCO can apply up to any thickness depending on the clients needs
ARANCO specializes in all Vessel Coatings, Inner and Outer Wall Coatings on all Tanks, Dewatering Tanks, Fuel Tanks and Transformers TSA/TSZ Coatings are applied for Corrosion, Wear and Tear.
ARANCO specializes in all Marine Applications, Tank Linings, Anti-Corrosion, Exhaust Stacks, Steam Pipes, Ship Decking, High Abrasion Areas, Chain Lockers, Process Equipment, Ballast Areas, Portable Water Tanks, Fuel Tanks, Super Structures of any Vessels, All Anchor Areas, Bow Thrusters, Ship Decks, Ballast Tanks, Heat Exchangers.
ARANCO specializes in coatings of all Dewatering pumps and parts, Volute, T-Piece, Reflux Body, Impellers, Shafts, coated with Aluminium and Zinc for serious corrosion, wear and tear.
Oil and Gas
Components in the Oil, Gas and Petrochemical industries often are exposed to wear mechanisms as well as chemical attack and erosion. Failure of components can lead to massive financial loses. We are all aware of the terrible consequences that result from large oil spills and the associated ecological impact. Reliability therefore is a critical factor. This is especially true in continuous production operations. By using thermal sprayed coatings specific beneficial properties can be added to the surface. This result in improved reliability, long life, and reduced down time.
The production and processing of steel subjects mill components to combinations of enormous load, high temperature, corrosion, and abrasion. This has the potential to cause many problems throughout the processing line. Modern steel mills have recognized the importance of working with coated rollers. Thermal sprayed components are designed to permit steel to be processed more rapidly and efficiently.
Paper & Printing
During the production of pulp and paper and in the printing industry, wear, erosion, corrosion and chemical influences are common problems affecting machine components. Often it is a combination of wear in a highly corrosive environment that makes it extra complex. By applying a thermal sprayed coating to the components, specific properties such as cycle lifetime, capacity, maintenance costs reduction, can be significantly improved. It is now common to update old installations with lightweight materials to increase production capacities. This allows the older facilities to remain competitive with modern installations. In some applications steel rollers are replaced by CFK (Carbon Fiber) or aluminum rollers to reduce weight and increase stiffness of the structure. To protect the surface against abrasion and chemical attack, a thermal sprayed coating is applied.
Industrial Gas Turbine (IGT)
Land based gas turbines components are subjected to high mechanical loads at elevated temperatures, whilst having to contend with hot gas corrosion and erosion from aggressive air and fuel contaminates. For protection from these damaging environments, special thermal sprayed coatings have been developed. These coating extend operating life, and allow increased turbine entry temperatures (TET), leading to an improvement in thermal efficiency.
Turbine blades and guide vanes are generally engineered from either high temperature resistant nickel based super-alloys, such as IN738, which have good oxidation resistant properties, but are not capable of withstanding high temperature corrosion and erosion, or cobalt based alloys that are excellent against corrosion but have low resistance to oxidation. To alleviate these problems components are coated with a MCrAlY overlay, the composition of which, and especially the metal component M (Ni, Co, Fe or a combination thereof), depends on the application and the environment in which it is used. MCrAlY alloys form internal oxide structures and spinels, which renders them with excellent resistance to high temperature oxidation and hot corrosion. The life of the coating is closely related to the oxide content, porosity and the bonding of the coating to the substrate. The addition of yttrium (Y) to the coating improves the overall oxide structure and tenacity of the oxide films.
Thermal Barrier Protection (TBC)
Some components operate in temperature regimes exceeding the maximum allowed for either the overlay coating or the component material, which leads to a requirement for thermal protection. Zirconia based ceramics are applied over the MCrAlY coating to provide a temperature gradient between the gas stream and substrate. With the aid of cooling gases, these components can withstand the elevated gas stream temperatures. The thickness of the zirconia required depends upon the gas stream temperature and the amount of cooling available. These coatings can be applied to a thickness of 2 mm, although typical thickness’ are in the range of 0,2 mm to 0,5 mm.
Hydraulic piston rods are utilized in a broad variety of industrial areas such as civil, industrial and offshore. A hydraulic cylinder is a mechanical moving mechanism that gives a force through a stroke. Smooth and hard surfaces are required on the outer diameter of the piston rod for proper sealing. Typically piston rods are hard chrome-plated, but in the production of hard chromium plating hexavalent chromium oxide is produced. Hex chrome is a well known carcinogen. Thermal spray offers several alternative super alloy, ceramic or carbide based coatings as replacement for hard chrome plating. Thermal sprayed surfaces resist aggressive environmental conditions such as wear and corrosion.. Many thermal sprayed coatings outperform the hard chrome plated coating.
Maintenance & Repair
Industrial components are often subjected to destructive environments involving friction, erosion, high temperature and corrosion. These frequently occur in combination with each other. At some point the part must be replaced or overhauled. By applying thermal sprayed coatings the components can be quickly restored to original dimensions often with better mechanical or physical properties than the original.
The Power Generation industry is known for applying the latest in materials technology. This is particularly evident in recent times as more demands are made to increase wear/corrosion protection, service life and of course reduce safety risks. Thermal spray offers a broad choice of overlay coatings designed to meet the requirements necessary for protection against heat, corrosion and wear.
The Aerospace industry is one of the first industries that have completely accepted thermal sprayed coatings. In an aircraft engine there are hundreds of key components that are supplied with thermal sprayed coatings. Without the use of these thermal sprayed coatings a turbine will not operate at optimum levels. A variety of degradation problems exist in aircraft engines as a result of metal to metal wear, fretting, hot corrosion, particle erosion plus others. This degradation is accelerated due to the high temperature conditions involved. Thermal sprayed coatings impart the required surface condition required to increase the life of certain engine components
The competition in the automotive industry is very high. It is very important to produce at low cost while maintaining a high level of quality, reliability and durability. Today this is often done by using standard low cost base materials with high-tech functional surfaces. Thermal sprayed series production parts had already found their way into engine design in the sixties. By coating piston and synchronizer rings, their service life could be extended substantially in comparison to uncoated parts. The development and optimization of specific parts has become a key matter in the automotive industry. By using thermal sprayed coatings on key components cycle life time has been increased.
In an ideal world, a material that is inherently resistant to its service environment, complies with the mechanical, formability and economic criteria would be the first preference selection. Sadly, this is not the reality. Many materials require a method of corrosion control.