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Quench Tank Idea...

Discussion in 'Heat Treating' started by Shadnuke, Aug 3, 2017.

  1. Shadnuke

    Shadnuke Disabled dreamer...

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    Ok, I was at the local thrift shop the other day, and came across an old electric coffee urn. I have been hunting down what type of temperature it gets up to, to no avail. I'm just curious as to what temperature everyone normally has their quench oil set at, specifically, rapeseed oil. Would the coffee urn put the oil at too high of a temperature to use it as a quench tank, if, I would assume it would likely be around the 195-205ish°F mark. I haven't fired it up to see what the oil temp actually gets up to yet, burning just curious on the numbers, and if anyone else out there is possibly using a coffee urn as a quench tank? I've seen guys using those slow cooker/electric roasting pans as a quench tank, so I thought this might work!!
     
  2. John Noon

    John Noon Well-Known Member

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    The brewing temperature of the water used is very important. It should be between 195 F (91 C) and 205 F (96 C). The closer to 205 F (96 C) the better. Boiling water (212 F - 100 C) should never be used, as it will burn the coffee.
     
  3. dancom

    dancom Dust Maker Best Shop Tool

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    I use a roasting pan and heat the oil manually (torch or forge/hot chunk of re-bar). Lots of people use coffee urns, slow cookers, deep fryers etc. All fine as long as you monitor the oil temp.

    When time permits, I will be working on something slightly more interesting than a roasting pan. :)

    Dan
     
  4. FORGE

    FORGE Maker of the Year Best Knife

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    Use a steel 5 gallon paint pail full of ATF with a lid so if it starts on fire you toss the lid on it. I pre heat the oil to about 140 deg F. with my salt pot exhaust.
     
  5. Shadnuke

    Shadnuke Disabled dreamer...

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    I guess I'm gonna find myself a pot and just use a hot plate. I'll be able to better control things, especially when it starts to get colder. Im just running a 2 brick forge right now, until I can get my own built. Ended up having to put off my shop over the last 18 months, but finally have what I need to get started!
     
  6. Mythtaken

    Mythtaken Staff Member CKM Staff

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    I found a really nice stainless steel pot for cooking asparagus at Canadian Tire in one of the "specals" bins for a few dollars. It fits nicely on my hot plate, has a lid, in case of flare-ups, and the extra height is perfect for most knives.
     
  7. Eric B

    Eric B New Member

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    i just recently picked up a fire extinguisher from a refill station that had been expired.lots of sizes to choose from
    and depending on the owners possibly get one for free as i did!! all i plan on doing is cut the top off and make a hinge
    system so if need i can snuff the flame out.
     
  8. Shadnuke

    Shadnuke Disabled dreamer...

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    That is my plan! I make trips to the local thrift shops and Value Village here in Medicine Hat, so if I can find an asparagus lot, or even an old coffee percolator or tall kettle, either one will do the trick! As for something like fire extinguishers here, I'll have to take a look thru the directory. We're pretty limited on stuff like that here. It's amazing how much comes in from Calgary and the other larger cities.
     
  9. ToddR

    ToddR Active Member

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    It's interesting hearing about all the household items adapted for knife making. One of the things that i love about knife making is all the different tools. I only started out trying to learn to weld. So I welded up a grinder because my buddy talked about how great his was for working metal. Then i started reading about knife making and it was pretty cool. You can make knives with very little and very basic tools. Or you can have a shop full of top dollar milling machines and grinders. I love how you can adapt everyday items into something useful for knife making too. Toaster ovens, hot plates, slow cookers - all kinds of everyday items adapted for use in knife making. It's one of those crafts that seems to encourage creativity and even outside the box thinking. And you get a cool knife at the end of it.
     
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  10. Kevin MacPherson

    Kevin MacPherson New Member

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    I picked up an ammo box from Princess Auto. Its waterproof, has a lid and works well.
     
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  11. dancom

    dancom Dust Maker Best Shop Tool

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    Value Village, Goodwill, Salvation Army are all great sources of MacGyver-esque inspiration. I am always looking for ways to re-purpose stuff from second hand stores.
     
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  12. Shadnuke

    Shadnuke Disabled dreamer...

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    That's exactly it! I'm eventually going to build a 2x72, and have a friend whom is a welder, so we're going to look into making 2 or 3 of them for us and another guy. All you need are basic hand tools. And even if you have want and know-how, you can even make your own files, along with just about everything else you need. Immtrying to get my 14 year old stepson into knife making too. He can definitely benefit from the skills and critical thinking that comes along with it!

    I have a bunch of them already from my time in the army. I don't have the space to have a clunky ammo box sitting around in my tiny workspace, but once I have everything set up the way I want it, I may go back to the idea of using one. I literally have 12 sq feet of bench space, so I'm not working with very much.
     

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