Volumetric powder feeders are based on a positive-displacement mechanism that delivers packets of powder.
Continue readingSpray Tips: Volumetric Powder Feeders
Message from the President: Welcome to 2017!
It’s hard to believe that the calendar has turned and we now find ourselves in 2017. I hope everyone had a wonderful and relaxing holiday season, and now off we go for another year of thermal spray!
Continue readingSpray Tips: Cold Spray Process Parameters
The image compares the particle velocity and gas temperature ranges of cold spray and other thermal spray processes.
Continue readingPresident’s Message: My Last Message
This is my last message as President of the Thermal Spray Society! Doug Puerta will take over the TSS Presidency on October 1, and you will be hearing from him each month.
Continue readingSpray Tips: Basic Design of a dc Plasma Arc Gun
The basic components and design of a dc plasma arc gun are illustrated in the diagram. Direct-current plasma arc guns combine an axially aligned cathode, an anode/nozzle, and some means to control gas flow geometry in the arc chamber.
Continue readingParticle Trajectories in Plasma Spray
The diagram illustrates the various trajectories that particle distributions may follow. Each trajectory shown represents extremes in particle heating, and this affects the average condition of the particles on impact (liquid, solid + liquid).
Continue readingDC Plasma Arc Gun
Direct-current plasma arc guns combine an axially aligned cathode (typically, 1 to 2% thoriated tungsten), an anode/nozzle (typically, oxygen-free high-conductivity copper), and some means to control gas-flow geometry in the arc chamber.
Continue readingSpray Tips: Electric Arc Spray
Electric arc spray is also known as twin-wire arc, arc spray, or wire arc spray.
Continue readingSpray Tips: Powder Flame Spray Gun
The diagram illustrates a typical powder flame spray gun.
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