Large plastic containers can be converted into a thermal container to store cold drinks, ice cream and other products. It is very simple and cheap, is much more profitable than buying a ready-made cool box. A homemade thermal container will come in handy at a picnic or fishing so that the stocks cold drinks and food cool longer.
- plastic canister 20 l;
- polystyrene 20 mm;
- plywood 12 mm;
- door hinge – 2 PCs;
- food foil;
- polyurethane foam;
- aerosol paint;
- braces latch;
- plastic cable channel.
The process of making vaccine
The canister must be cut on the top transverse seam of the factory into 2 parts. Edges on the half roughened with a knife to remove burrs.
Styrofoam cut 2 inserts in the top and bottom of the cans.
They are pasted on the foam. To insert in the bottom of the canister came tight, it should be pre-cut corners on the underside.
To increase the rigidity of the cool box should be of plywood reinforcing insert 2 in the form of rings. For this purpose the halves of the canister are enclosed on the plywood according to the cut, the contour is duplicated with a space of 2-3 cm inside. Thereafter, the blank is cut along the lines. The result is 2 rings.
Next, you need to insulate with polystyrene foam, the inner walls of the cans. To do this, cut 4 blanks.
They need to cut the corners on the long side. This will allow them tightly to insert into the canister. Before you install them, you should saponite the seam between the insert at the bottom and the walls. Immediately thereafter, the blank is inserted in the fresh foam, and extra foam in the corners. If between the vertical panels and the walls of the canisters there is an empty space, it is also necessary to saponite.
Then, on the edge of the heater is placed a plywood ring and bolted to the walls of the cans with screws. Likewise, the second ring is fixed on the upper half of the cool box.
Using the plywood insert as the base, secure the loops of the upper and lower half of the cool box. For this purpose screws or pop rivets.
Styrofoam should be cut another insert for installation between the walls of the lower ring of the cool box. It should perform the function of the inner cover.
Before installing it you should paste food foil, drill 2 holes and make them loop, to be able to remove the insert. Also foil paste the bottom wall and the upper movable part of the cool box.
Using the lid of a plastic cable channel, it is necessary to close the joint between the halves of the canister. It is fixed to the upper ring by means of rivets. The cable channel is curved in an arc. It needs to cover the sides and front of the cool box, while the side with the hinges will remain open.
To get the look of the cool box was more presentable, it can be painted. After that, the front of the installed braces latch. Now by placing in cold boxes ice or cold accumulator can be maintained at this low temperature for hours or days, depending on the season.