CASL provides quality in-house application of thermally sprayed coatings for various downhole tools equipment. CASL uses thermal spray systems and alloys designed to produce superior coatings for longest tool life. CASL uses high-energy powder combustion, twin wire arc systems, atmospheric plasma or high velocity oxygen fuel (HVOF) processes to provide customers with dense, high strength, low porosity coatings, that protects and extends the life of your assets.
With in-house technical support, CASL provides its customers with the coating systems and material options for their individual applications. CASL’s various thermal spray systems give us the ability to apply a wide range of coating materials – from aluminum to zinc and all of the alloys in-between.
TYPICAL THERMAL SPRAY ALLOYS ARE AS FOLLOWS:
- Tungsten Carbide/Cobalt for severe abrasion and erosion resistance
- Stainless steels for moderate corrosion and dimensional restoration
- Modified Hastelloy® C type alloys for severe corrosion and pitting
- Monel for corrosion resistance in downhole applications
- Hastelloy® materials for chloride environments and exceptional corrosion and erosion resistance
- Hastelloy® and stainless steels for hydrogen blistering control
- Ceramic materials for high temperature erosion and corrosion resistance, and electrical insulation
- Amorphous nickel based materials for high temperature wear resistance and moderate impact abrasion applications
- Custom alloys, which can be manufactured for special needs upon request
HIGH VELOCITY OXYGEN FUEL (HVOF)
HVOF is our most commonly used thermal spray process. The HVOF process uses high kinetic energy and controlled thermal output to produce dense, low porosity coatings.
A wide variety of alloys can be used in the HVOF process such as metals, cermets, and some ceramics. The HVOF process provides an extremely dense coating with bond strengths of greater than 10,000 PSI, and porosity levels less than 1%.
Common HVOF applications include:
- Centrifuge Bowls
- Bearing Mandrels
- Upper Distributors
- Mud Rotors
- Wear Sleeves
- Drive Shafts
- Suspension Rods
Our atmospheric plasma spray system is used to apply ceramic coatings for non-conductive, thermal insulation, corrosion and wear resistance applications. Ceramic coating applications include titanium oxide and chromium oxide.
Common plasma applications include:
- Pump Components
- Drive shafts
TWIN WIRE ARC SPRAY
The Twin Wire Arc Spray process starts with an arc struck between two continuously fed alloy wires. The droplet of molten material is then blasted with an air jet that blows the molten particles toward the substrate. This process provides high adhesive strength and low porosity.
Most metal alloys can be used in the Twin Wire Arc Spray process. Twin wire arc coatings have a deposit efficiency of 60-70%, coating bond strength between 5,000 and 7,000 PSI, and porosity levels of 1-5%.
Common Twin Wire Arc Spray applications include:
- Rebuild of heavily worn components
- Aluminum Bronze Metering Valve and anti-galling applications
- Undercoat for ceramic applications
Our high-energy combustion powder systems are used for a variety of specialty applications, using a select group of highly corrosion resistant alloys. Ideally suited to applications where our other processes cannot reach, where we have severe corrosion and erosion occurring and/or a mirror finish is not required.
Common Combustion Powder applications include:
- Downhole pumps and motors
- Dimensional restoration of bearing surfaces
WHY CHOOSE CASL?
- We provide a full service (one stop shop) that offers customized solutions from start to finish
- We are one of the only providers in North America that offer sulfamate nickel chrome plating services
- We complete various outsourced testing, and we have our own small lab for testing our own products
- ISO 9001:2008 certified since 2003
- Services are not limited to downhole tools and can be applied to related equipment requiring protection from corrosion and wear