I recently purchased a knife oven and some foil to wrap my knife (1095 steel) in to heat treat it. My question is in regards to removing the knife from the envelope before quenching. Is it that big of a deal to keep the wrap on and quench to help with cleanup? Does the wrap trap air and cause irregularities in the metal?
Also, if the purpose is to cool the metal 1000 degrees in the first 1-2 seconds, then why would I need to heat my oil (canola) up to 120 degrees? By not heating the oil up does this increase the chances of fracturing?
My only experience is making knives out of lawnmower blades then heating with a propane torch till nonmagnetic. Ovens and foil wraps are new to me.
Thanks!!
Also, if the purpose is to cool the metal 1000 degrees in the first 1-2 seconds, then why would I need to heat my oil (canola) up to 120 degrees? By not heating the oil up does this increase the chances of fracturing?
My only experience is making knives out of lawnmower blades then heating with a propane torch till nonmagnetic. Ovens and foil wraps are new to me.
Thanks!!