So if Busse is gonna use SR101 and the Yard is gonna use 5160...

[Cobalt]

one final note:

07-04-2000, 11:33 PM
Busse has been doing cryo since the early 1980's. Back then it was a very primitive process involving an old cooler, dry ice and about a gallon of acetone. Process: pack the blades in dry ice, pour the acetone over the ice to speed the evaporation process, and hit somewhere around the -190 degree mark. Do a normalizing temper (approx. 350 - 450) and voila! Prehistoric Cryo!

In the late eighties we began the employment of a deep cryo treatment (-300/320 degrees) which was done in a dry, controlled, atmosphere. This process allows us to take our blades down to temp. over the course of 10 hours hold them at temp. (-300 degrees) for approx 50 hours, and then bring them back up to room temp. over the course of the next 10 hours at which point they receive 3 more, individualized, oven tempers. This is the same process that we employ to this day.

Some makers are out there just plunging their blades into liquid nitrogen which can shock the steel so dramatically that microscopic cracks and fissures can form that could cause massive blade failure in the field under heavy and/or light use. That is why it is crucial that the blades be cooled slowly and brought back to room temperature slowly and then normalized with a few oven tempers for stress relief.

Of course there are also some makers that I know of who claim to employ cryogenics because they stick their knives in the freezer over night. Scary! Alway ask the maker to give as much detail of his cryo process as possible.

Knowledge is power! Arm yourself!

Yours in Nuclear Cryogenics,

Jerry Busse

 

[Hard Knocks]

Bowing out of this one. Cobalt, Nathan, Mr. Knight and others, I appreciate the conversation.

Insipid, no problem it was fun, until the looser troll showed up.

As am I. See you all on the other side.

Well crap, I knew it was coming but couldn't stop it. Thanks for the read, fellas. It was fun while it lasted.

 

[MattinLA]

Thanks for all the info, it was a great read! and Josh tell Jerry to unleash some new SR101! anniversary Chopweiler perhaps?

 

[RevDevil]

Folks, you all need to learn how to discuss things in a civil manner. Do not discuss one another, do not insult one another. Discuss the topic, share information, facts,a nd come to amicable agreements or disagreements if needed. If you are incapable of that simple act, then a forum is the last place you need to be. I'm shutting this one down before people start getting themselves banned over some stupid ego BS thing going on. Move along folks, nothing to see here.