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- Jan 9, 2011
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I am doing some heat treating this morning and thought it would be fun to share some pics.
HT area - 24" kiln, 11" kiln
In the heater roasters - 28 second oil, 11 second oil
Small Vise for straightening, etc.
I usually have a container of brine for water hardening steels
Dirt floor! this is nice when something hot gets dropped, this shop is also open air so there is plenty of ventilation
Here are my 1x6x18 Aluminum plates for air hardening steels and straightening. Tongs, thick gloves and eye protection (not pictured) are essential.
Wakizashi! This is O1 steel so I quenched it in 28 second oil, it needs a slower quench than most oil hardening steels.
Check the quench line! O1 shows a quench line nicely, only some steels have this property. If etched and polished there will be a visible line. (not a hamon) The line starts at the top left and drops 1/4" as it goes to the right. That is a scratch from my oven brick on the left....
This one looks like activity but is also a quench line done in a different way. ("bobbed" in oil)
How do I go straight from 1520F to temper temos immediately? Two ovens! O1 needs to go right in the temper oven once it cools to room temp.
This oven is a bit small so I am doing a snap temper until the big kiln cools down. I have a side door and use fire brick as insulation. If I move the knife a lot this works nicely.
quick peek...
These came out pretty straight but are a hair off, I clamped them together at 400F to ensure straightness during the temper cycles. The bricks hold them together so I am not fumbling hot knives. (it can be done cold too)
They will be tempered twice for 2.5 hours each cycle which is pretty standard.
HT area - 24" kiln, 11" kiln
In the heater roasters - 28 second oil, 11 second oil
Small Vise for straightening, etc.
I usually have a container of brine for water hardening steels
Dirt floor! this is nice when something hot gets dropped, this shop is also open air so there is plenty of ventilation
Here are my 1x6x18 Aluminum plates for air hardening steels and straightening. Tongs, thick gloves and eye protection (not pictured) are essential.
Wakizashi! This is O1 steel so I quenched it in 28 second oil, it needs a slower quench than most oil hardening steels.
Check the quench line! O1 shows a quench line nicely, only some steels have this property. If etched and polished there will be a visible line. (not a hamon) The line starts at the top left and drops 1/4" as it goes to the right. That is a scratch from my oven brick on the left....
This one looks like activity but is also a quench line done in a different way. ("bobbed" in oil)
How do I go straight from 1520F to temper temos immediately? Two ovens! O1 needs to go right in the temper oven once it cools to room temp.
This oven is a bit small so I am doing a snap temper until the big kiln cools down. I have a side door and use fire brick as insulation. If I move the knife a lot this works nicely.
quick peek...
These came out pretty straight but are a hair off, I clamped them together at 400F to ensure straightness during the temper cycles. The bricks hold them together so I am not fumbling hot knives. (it can be done cold too)
They will be tempered twice for 2.5 hours each cycle which is pretty standard.
