A small article on how to make an oven from old brake drums of trucks.
For the manufacture of the furnace, the Master used the following
Tools and materials:
-USHM;
Cutting and grinding discs;
-Welding machine;
-Vise;
-Brake drums;
-A metal sheet;
-Metal strip;
-Trumpet;
-Rod;
- Hammer of the welder;
-Fasteners;
- Heat-resistant paint;
Step One: Finding Material
To make the furnace, the master needs 3 brake drums. The master purchased the used drums at the scrap metal collection point.
Step Two: Cutout
A cutout is made at the bottom of the lower drum. Cutout size 120 * 250 mm.
Step Three: Lattice
Twists the lower and middle drum with bolts. Welds a strip from a strip. Installs it on the inside of the drum.
Step Four: Insert
The insert is a metal strip cut from a sheet. First, the master cuts it into three parts. Then bends, inserts into the drum and welds. A strip is welded to the upper outer part of the insert. Then the upper drum is installed there, and the strip does not allow it to move.
Step Five: Drawer
Welds the ash box. A welder’s hammer handle is welded to the box. There is a spring on the handle of the hammer and due to this it will be possible to take it without fear of a burn.
Step Six: Cover
In the upper drum makes a cutout as in the photo. And drills another hole.
The top cover consists of two halves. One is mounted not movably and a chimney pipe is installed on it. The second movable part.
Seventh step: chimney
Drills a hole in the pipe and installs a valve inside. The role of the handle is again played by the handle of the welder's hammer.
Marks a place and cuts a hole under the chimney pipe.
Welds the pipe. Welds to the movable part, yes, the handle of the welder’s hammer.
Step Eight: Painting
Cleans the surface from rust. Then it covers the surface of the furnace with heat-resistant paint. The master used paint withstanding heat up to 1093 ° C.
Then the master waits for seven days until the paint dries. To fix its heat-resistant properties, it performs the following operation:
1. Preheat oven to 121 ° C for 30 minutes. Allows to cool for 30 minutes.
2. Heats the oven to 204 ° C for 30 minutes. Allows to cool for 30 minutes.
3. Heats the oven to 343 ° C for 30 minutes.
The furnace is ready and the master brings some temperature parameters.
During normal operation, the temperature is as follows:
Chimney: 210 ° C - 280 ° C.
Top cover: 365 ° C - 400 ° C.
Bottom side: 500 ° C.
The size of the heated room: 6.5x 7.5m.
Outdoor temperature: 3 ° C
Indoor Temperature Near Oven: 42 ° C (108 ° F)
Indoor Temperature: 34 ° C (93 ° F)
