Dust Collection in Thermal Spray & Metalizing Applications
Advanced Filtration Technology for Applications Involving Thermally Generated Fume
Reliable Dust Collection & Explosion Mitigation for Thermal Spray Applications
AST Canada supplies reliable dust collection, fume extraction and combustible dust mitigation solutions to fit a variety of thermal spray & metalizing applications in the metalworking industry.
With several decades of experience engineering dust collection systems, AST Canada is the name you can trust above all others for solutions to dust, mist & fume collection plus fire & explosion mitigation in industrial settings.
Designing Around Ultra-Web® Technology
AST Canada creates systems using Donaldson’s advanced Ultra-Web® fine fiber filtration technology which is supremely suited for applications involving thermally generated fume, especially when installed in a Donaldson Torit dust collector properly selected for your application.
Thermal Spray or Metalizing
Thermal Spray or Metalizing is a group of coating processes which deposits finely divided metallic or non-metallic materials in a molten or semi-molten condition on a substrate to form a coating. The coating material may start out in the form of a powder, ceramic rod, wire, or even molten material. The process has the potential to generate very small particulate often referred to as “fume”. This thermally generated fume can be smaller than one micron in diameter, and uniform in size making collection a challenge.
Applications
Thermal Spray Coating Process
Processes Involving Thermal Spray
The thermal spray processes involve such heat that the process produces a very fine dust (fume), typically sub-micron in size and very uniform. Some of the materials used in thermal spray applications have associated adverse health effects, and defined minimum exposure limits set for them, which necessitates effective dust collection.
Following are terms for typical thermal spray processes that produce fumes needing to be controlled:
- Flame Spray Powder Flame Spray
- Wire Flame Spray High Velocity Oxy / Fuel Spraying (HVOF)
- Cold Spray Plasma Arc Spray
- Electric Arc Spray
Related Processes Producing Contaminants
Surface Preparation and Finishing Operations:
- Abrasive blasting
- Grinding
- Wet machining
Special Considerations
Explosion Considerations
Many metal fume dusts are combustible and those operations generating or handling metal fumes can require special mitigation efforts to minimize fire and explosion risks. Standards such as NFPA 654 can provide guidance for those who generate and handle these types of dusts. See the Donaldson Dust Collectors and Combustible Dust Strategies brochure.
Health Considerations
Metal fume dusts may also have identified adverse health impacts, and special mitigation strategies may be required to limit occupational exposure below levels OSHA or other health organizations have established for these materials.
Related Products
Cartridge
Downflo® Evolution
The Donaldson Torit® Downflo® Evolution (DFE) cartridge dust collector is capable of reducing equipment size and the number of required filters by up to 40%.
Downflo® Oval
The Donaldson Torit® Downflo® Oval (DFO) cartridge dust collector is a compact, high-efficiency unit that use oval-shaped filters suited for filtering submicron dust.
PowerCore®
TG Series
The Donaldson Torit® PowerCore® TG Series dust collector is designed for thermally generated dust with a footprint up to 65% smaller than other cartridge collectors.
IoT Enabled with iCue™ Connected Filtration Service
* may not be available on all models
Resources
Related Articles
Case Study
AST Canada has been helping clients find solutions for their unique Dust, Mist & Fume Collection needs for more than 40 years.
We can help you too.
