My answer regarding viscous quenches

[go mike]

Has anyone tried using freeze spray to quench knives?

 

[Nathan the Machinist]

Or what about spray cheese!

 

[James_Terrio]

No lard wars, just a step by step on how quenching works, and when the information is presented allow readers to make their own informed opinions.

That would be very cool. Thanks for your time and efforts.

Or what about spray cheese!

For this, I must put you on ignore! I'm a Wisconsin boy born and bred, and the very existence of spray "cheese" offends me! :grumpy: Clearly you're just trying to antagonize me with that heresy!

just kiddin bud, you've helped me a bucnh, whether your realize it or not, not with cheese though

 

[mete]

Spray cheese ? I thought this thread was about vicious wenches !

 

[James_Terrio]

Man oh man, I've known a few vicious wenches!

 

[Alden Sherrodd]

Kevin, I truly am sorry that I have negatively affected you. I will read the new thread. Maybe that will contain what I originally asked for. All I really inquired about was, what have you seen from the traditional quenches as opposed to commercial quenchants from a scientific standpoint. I have never had any desire to debate anything. I don't have a dog in the fight. I have absolutely no doubt the commercial quenchants work very well. I only want to know how do the others fall short.
I am sorry if you think I have challenged the altars of science, in fact I have not. I had no idea that asking how quenchants perform is in fact challenging science as we know it.
I am sorry if my intentions have been misconstrued. Maybe the transparency of my questions and thoughts are somehow reflective.
Alden

 

[Mike Krall]

All I really inquired about was, what have you seen from the traditional quenches as opposed to commercial quenchants from a scientific standpoint. I have absolutely no doubt the commercial quenchants work very well. I only want to know how do the others fall short.
Alden

Alden,

In that I cannot point you to science based information on quenching, I shouldn't be discussing this.

Grossly, quenchants fail in having a prolonged vapor phase, a prolonged boiling phase, inadequate conduction cooling. They also fail in not having long life and a wider range of similar function for initial quenchant temperature.

The failures show as dissimilar structure in different areas of the steel, warping, and cracking (microscopic and otherwise) from uneven and/or inadequate cooling.

I feel like the answers to your questions on a detailed basis would be found in the history of quenchant developement. Like in notes from experiments on various bases with and without various additives that were done as part of the developement of modern quenchants. The article Stacy put up would give you ideas of the time in history to look.

Mike

 

[Kevin R. Cashen]

Kevin, I truly am sorry that I have negatively affected you. I will read the new thread. Maybe that will contain what I originally asked for. All I really inquired about was, what have you seen from the traditional quenches as opposed to commercial quenchants from a scientific standpoint. I have never had any desire to debate anything. I don't have a dog in the fight. I have absolutely no doubt the commercial quenchants work very well. I only want to know how do the others fall short.
I am sorry if you think I have challenged the altars of science, in fact I have not. I had no idea that asking how quenchants perform is in fact challenging science as we know it.
I am sorry if my intentions have been misconstrued. Maybe the transparency of my questions and thoughts are somehow reflective.
Alden

No need to apologize, you did good! I occasionally need a kick in the pants to remind me to practice what I preach! I go on and on about sticking to sound proven facts and then rail on about something that I see as error without helping anybody understand what it is that I am talking about. Quenching while appearing to be such a simple thing is actually one of the most complex that I have studied, and there are indeed entire laboratories set up to study and design ways to do it best. But it really does appear as putting and blade in anything that will cool it. I need to remember this deceptive perception when I decide to make statements regarding quench mediums. It is like for years fixing a device when it malfunctions by giving it a thump with your fist or a hammer- it seems to really work fine! Somebody may tell us that we could only break it worse by whacking it but we dismiss this with "it always works when I do this". But then one day a technician opens the case and shows you all the super delicate parts and mechanisms requiring imaginable tolerances and alignments making it appear a miracle that the thing works at all. Then we get a sick feeling in the pit of our stomach that all those years we have been clubbing this delicate thing like a caveman and thinking things would work out fine in the end

You helped remind me that not everybody has taken a close look inside this mechanism which is so crucial to our success, making clear to me that there is a difference between preaching and educating. I will now step off my soap box and open the case on this gadget in the other thread, hopefully I will open some of the folks eyes with an informative discussion instead of closing them with another sermon.

 

[Kevin R. Cashen]

Spray cheese ? I thought this thread was about vicious wenches !

I hope not! I barely have a grip on the quench thing. It would take thousands of scientists entire lifetimes to even scratch the surface on vicious wenches! And then what they find just beneath the surface may be so toxic it could kill us all. I would much rather deal with ornery hot steel than even attempt to understand a vicious wench!