gow589 said:
Built circuit to control/automate a kiln. Uses, powdercoating, heat treating metals. Good up to a little over 2000 degrees. I set climb rate, max temp, holding time. I can add anything with programing if I need:
I like it............. I'm behind the curve on powder coating.. Could you tell me what kinds of Temps are required to powder coat? My neighbor set up an oven with a 48" x 48" stainless box and insulated it with oven foil and layers of duct liner glass.. But he used elements, thermostat and controls from a 220 range/oven. So I'm thinking he's running at 500f or less. Does that do it, or are there various powder coatings with differing specs?
I ask thinking maybe I'm not the only one who doesn't know.. Hopefully
It depends somewhat on the powder. Some cure lower, some cure higher but most of them are in the range of 375 - 400 degrees, The important part is that it is PART METAL TEMPERATURE not oven temp. So you start timing your cure time when the part hits 400 not when you put it in the oven. For large heavy parts like wheels, intakes, it can take up to 45 minutes for the part to hit the right PMT so you're looking at potentially an hour at 400 degrees for a cure.
Here's some of my work
Coal bucket in Green Vein
Valve covers for a friend. Blasted Aluminum powder over mirror yellow
Edlebrock Intake and fuel rails off the same car.
Clear on the intake, Mirror yellow on the rails
LS Truck Manifolds in Cast Iron Ceramic
DSM Manifold, Satin Black and Red Wagon
My Own Intake and fuel rails. Everything here is powdered