Kao-Lok Studs --- a potentially off-the-shelf solution to suspension of KaoWool

Discussion in 'Furnaces and their construction' started by Melterskelter, Dec 23, 2018.

  1. Melterskelter

    Melterskelter Gold Banner Member

    This is an item of which I was unaware. I was talking to a friend who designs instrumentation for refineries when he mentioned "clips" he had seen used to mount ceramic wool to ceilings and walls of "hot chambers."

    There appear to be limitations of temperature as they are rated only up to 2000F. But they still may have applications for kilns (I intend to soon build a heat-treat oven/kiln) and lower temperature furnaces for aluminum and bronze. And, if someone is creative, I can see using a castable refractory to make buttons with imbedded nuts that could be screwed onto studs previously tigged onto walls and ceilings in order to suspend wool or refractory board. The buttons could be mushroom shaped with stems that would place the stud well into the wool wall. Had I known about such a system, I might have used my own home-brew stud hanger system on my furnace lid.

    Just passing this on in case someone besides me finds it useful.

    Try this link and then click on "view PDF."
    https://www.google.com/imgres?imgurl=x-raw-image:///3ab6fcc2f8a9db781bcee0b5ac99905415a284775a1d71d7a005bf952426c2a5&imgrefurl=http://www.tregoning.net/blanket_and_wallpaperINSULATIONGUIDE.pdf&docid=jcENinUUsgxGUM&tbnid=eNup-ML8tjqk5M:&vet=1&w=719&h=701&bih=417&biw=911&ved=0ahUKEwjE5o-uhLffAhXiHDQIHaj2CRsQMwhJKAswCw&iact=c&ictx=1

    Denis
     
    Last edited: Dec 23, 2018
  2. You can also find ceramic studs which screw onto SS studs welded to the wall, with ceramic buttons like you described above to slip onto the studs. Look for "whistle stud" systems. The whistle is the metal adapter to go from ceramic to threaded metal.

    https://ssfbs.com/ceramicFiberAnchors.php

    I was going to use something similar if I hadn't used brick. The key is the blanket gets cooler as you approach the outer wall, that temperature gradient lets SS studs work.

    Had I made a wool roof I would have cut it into wedges and rolled the small end of the wedge through the flue. You can anchor it outside the furnace on both ends and the small furnaces we're building the wool will span without anchors mid section, of course with rigidizer.

    Another option is to use ceramic fiber modules. They have the wool prefolded and anchored deep in the module so there is no metal close to the hot face. They cost a little more but are premade and designed to fit tightly together. You could make a small square furnace out of only 2,600F modules.

    http://ktrefractories.com/ceramic-fiber-module.cfm

    Happy reading...
     
    Melterskelter likes this.

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