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#homemade #DIY project #diy Build #firebricks #refractory mortar # heating element #tempering oven #heat treatment oven
Tempering Oven using Fire Bricks and Refractory mortar and heating elements.
Usage of refractory mortar are different but mostly we follow these ratios 10: 3 : 1.5 - Sand, Calcium Aluminate cement, Fire clay.
If you found hard locating refractory cement don't worry, here is one mixing formula with Portland cement plus lime available in ordinary building stores.
There are two Portland cement types, get the common gray in color, the other one is white decorative used for around pools etc. where a white effects are required.
Lime is calcium it takes over the cement in hot conditions (Portland will gradually burn out, it is used only for the mortar to set while working.)
10 : 6 : 2 : 3 - Sand, Fire Clay, Portland cement, and Lime.