Forum Comments

Anyone Remember This Gadget?
In Main Campsite
Fake Hill Heads
In Building Archery Equipment
Jun 18, 2022
OK, I'm going to keep flogging along here. In case anyone was wondering.... Flogging = Forum blogging. A newly coined term regarding seemingly pointless, unending, rambling, semi stream of consciousness entries. With run-on sentences. So this is my heat treating oven. It's kind of big for heat treating a couple square inches of steel, so I decided to decapitate and gut it. I got this kiln as a give away. If my only goal was to treat blades, I would look for another option, but this unit is handy for a variety of tasks. I have baked power coated rims. I can also properly temper 36" Bamboo lams in it. The problem with a kiln is the temperature is hard to control. They use a primitive system where the temp ramps up until it melts a little ceramic cone, which allows a metal lever to drop and switch off a relay. To control the temp, one has to constantly monitor and manually turn the unit on and off. Not very precise. So i decided to upgrade to a PID controller, with a ramp/soak function. I was happy to find all the hardware at my local Habitat for Humanity resale store. I did have to buy the PID and 2 of the relays. The box is HUGE, but is was only $5!! Allowed me to be sloppy with the layout Much Better! Before I get flamed, I know the box should be mounted, but I don't have that option. I'm not worried though. I'm a one man shop and it will never be in use when I am not present. I also cobbled together quenching plates for the A2 heads. The 3/64" steel is going to warp for sure at 1800deg, so this will keep them flat. These are temporary. They came out of my aluminum collection. When I accumulate 8lbs, I will melt it down and pour some proper quenching plates. I did lap the contact surfaces to 600grit and used thermal paste in-between, so they should be fine for the one square inch of steel to be quenched. I'm thinking I might try to heat treat the steel and melt the aluminum for the plates at the same time to conserve energy.
Content media


More actions