Absolutely. Slap it between aluminum blocks and some people just hang in front of cool fan to drop the temperature. John Wilson I do the same thing on both and have both going in oven at same time.
excellent! I'm doing A-2 just hanging with an automotive electric radiator fan...very few warped blades. Want to do some stainless and cmp154 is my preferred steel!
You can, but in industrial settings it is quenched by pumping nitrogen gas into the furnace, cold, so it is a bit faster than that. the slower it goes the more retained austenite you make, that requires more cold to alleviate... or lower austenitizing temps.... i would pop it in the deepfreeze at least, if you cant use liquid nitrogen. it is worth it to do liquid nitrogen, but you can still get it nice, i set the deepfreeze to max, and have some extra frozen flat things in there, that you can clamp the steel in, or just put against, both sides...
Do ya'll remove from oven while oven is ramping up to 1950/1975F? From the "ramp as fast as possible" it seems like ya'll might be leaving blade in oven?
thanks Andre...I do use LN on my A-2 and will do the same on the stainless.
i think you misunderstood his directions... he actually said, if you have two ovens, put it in one oven at the lower temp and transfer to other oven at higher temp. If you have one oven, you can ramp between temperatures, leaving the blade in the oven, but if that takes longer than a few minutes, just use the single higher temperature.
Yep, Hoss's first post in the thread talked about using 2 ovens, which he has. Later in the thread the question was raised how to do the prequench with only one oven. That's where he says to place foil wrapped blade in oven and soak at 1725F, remove blade and quench between aluminum plates allowing blade to cool while oven is ramping to 1975F range. Hoss says this double quench helps remove stress in blade to help with warp, and also as grain refinement.