Quote Originally Posted by JAZZCNC View Post
Boyan if your wanting an heat treating oven then have a look at something like this. I've got the same setup regards PID temp controller and Kanthel wire setup for a smelting furnace for casting aluminium and they are relatively cheap, I think I paid about £20 for the PID controller and Temp Probe.

2 times i buy, repair and make as new. Comes a friend,pays me premium or begs me much and sell it to him. Last time one was even angry with me that i have sold it..

Dean, i have bought a 51CRV4 spring steel to make some throwing knives/ my new covid hobby if you believe it. And found some interesting document on internet that this particular steel instead of 120min in an oven like the above, it will take only 2 min at correct temperature if induction heated and then quench and for 1 min reheat instantly at 250 and temper.

So it will greatly shorten and simplify process, furthermore i need only tip and back hardened and tempered, so can do it one time each side.

Now i dont have to go to my friend shop and heat 10kw furnace for 1 knife