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Thread: Homemade heattreat oven

  1. #1
    Gunco Veteran panaceabeachbum's Avatar
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    Default Homemade heattreat oven

    Finished up my home made heat treat oven today, ran it up to 2000 degrees with no problem. Annealed some soumi bolts, here is a pic of them at 1300 degrees


  2. #2
    Gunco Regular driswalds's Avatar
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    What temp does it top out at? And how many amps do you think does it draw?

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    Gunco Veteran panaceabeachbum's Avatar
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    Here is a link to the guys webpage that got me started on the project. http://www.britishblades.com/home/ar...?action=show&a mp;a mp;a mp;showarticle=31



    Here is the company that sell the temp control I am using, they have a basic on for about $35 I used on my powder coat oven and an $89 one with ramp soak and hold ability I am using on the heat treat oven , ebay also has quite a few of the conrolers in the $30-$40 range http://auberins.com/index.php?main_p...oduct_info&cPa th=1&products_id=15 This guy also sells a nice solid state relay used for switching the element on and off.



    These guys sell a ready made element that works well for the heat treat oven , same place the brit article refrences http://www.budgetcastingsupply.com/

    If your cheap like me, you can order the heating element wire from these guys and wind 5 elements your self for the cost of 1 from BCS http://www.resistancewire.com/mainpage.php?page=home

    I wind element on the lathe just like winding a spring, quick and simple, You can check resistance of the element as you go with a multimeter and cut at the proper place for the resistance you need. Kanthal is the wire you will need for this project, I bought a 100 foot piece on ebay for $16 delivered of the .047 diameter.

    For the fire bricks i bought the k23 fire bricks from Davens in atlanta for $2.35 a piece http://www.davensceramiccenter.com/ , these are avail on ebay, only problem I found was they are very delicate and most places want to individualy wrap them and shipping is about 2 buck s a brick. If you live in the big city just look for pottery supply and you should be able to find them .

    I am building my oven a little on the large side, 13x13 x 22. Hope some of this rambling helps

  4. #4
    Gunco Veteran panaceabeachbum's Avatar
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    Its been holding a stainless knife blade at 2300 for about an hour now, element is rated for 2350 continous

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    Gunco Veteran panaceabeachbum's Avatar
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  6. #6
    Gunco Veteran panaceabeachbum's Avatar
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    here is a pic of my home wound heating element wound from sandvick Kanthal


  7. #7
    Gunco Veteran panaceabeachbum's Avatar
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    a few pics of the frame to hold the firebricks








  8. #8
    Gunco Veteran panaceabeachbum's Avatar
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    finished up


  9. #9
    Gunco Veteran panaceabeachbum's Avatar
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    pic of the temp controller, $35 on ebay, and a $3 thermocouple from mcmaster


  10. #10
    Gunco Regular driswalds's Avatar
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    That is so cool. Thanx for the info I will have to give this a try for sure.

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