Advice 1: How to repair a thermos

Many homes have this simple at first glance, the device. A thermos, or Dewar, was at the time, invented for the chemical industry, but today is used in all spheres of life, ranging from chemistry and physics to consumer needs. So what to do if a faithful assistant would be out.
Instruction
1
Determine the cause of failure. If it's in a vacuum tube, repair at home is almost impossible. To do this you need special equipment, allowing to work with the vacuum. The acquisition of which will cost more than the thermos. In this case it is easier to take the thermos to a repair shop or, indeed, buy a new one.
2
If the flask broke, or rusted bottom, to fix it easy. Cut out of ordinary tin-diameter circle with the bottom of the thermos. As a shock absorber between the bulb and cut a circle put the circle of corrugated cardboard (cut from boxes for the appliances) and foil (cut it out of the packing of tea). That way you get good insulation from the bottom.
3
Secure it all with the help of small nails. Make a crosspiece from the rails and nail it to the body of the thermos. You can also make a wooden club, if you have the possibility to cut (then the thermos will have a more aesthetic appearance).
4
If the problem is in the lid of the thermos, more precisely, plugging in the tube, it is also solved. Old cork clean and wrap tight synthetic cloth in several layers. On top of it glue or tie a plastic or rubber layer (you can take material from ordinary rubber gloves).
5
All this wind at the base of a sturdy harness and fit the blanking in place of the old plugs. This design is temporary and not very aesthetic, but functional and help to keep you warm.
6
If wrinkled outer shell of the thermos, and the tube itself is not damaged, take the flask to the nearest garage, there is something for sure will help to deal with the dents. However, you can try to straighten the dent with a hammer, but run the risk of damaging the internals (see step 1).

Advice 2: How to fix thermos

Thermos, whatever it was good, sooner or later ceases to keep warm. This happens due to the depressurization of the space under the flask, which was originally a vacuum or rarefied air. You can experiment and try to fix the thermos, but there is no guarantee that this event will be successful.
You will need
  • thermos;
  • - izolon;
  • - polyurethane foam;
  • - rubber.
Instruction
1
Remove the glass bulb from a household thermos. Carefully inspect it from all sides, if there are chipped and damaged, this product can not be repaired, and for your own sake throw away the thermos.
2
If the glass bulb is not damaged, wrap it with izolon and attach a strong string or tape. Insert the bulb into the housing, replace the insulation elastic band, tighten the ring. Updated the thermos can hold heat for a couple of hours.
3
In a thermos flask examine the external parts. Maybe it's the sealing gum on the bottom of the tube. Try to replace it by cutting from the piece rubber ring and install onto the tube. Or replace the cap on the other, made of cork, which can be taken from the old thermos, or you can find at the hardware store.
4
In the process of improper use or use in a metal thermos flask microcracks through which the depressurization of the vessel. In this case, fix a thermos possible with the help of foam. Disconnect the bottom of the case, fill the empty space with foam and collect the thermos.
5
If you find the damaged bulb, then contact the specialists of refrigeration, to repair the thermos without special tools you can't. Using a vacuum pump you will restore the insulation. The location of the leak will sapat by welding on a stainless metal.
6
If the result of the impact damaged the hull, fix a thermos possible with the help of liquefied gas. Contact the service center where you will delicately remove all of the dents, and at the same time Polish localization.
7
Themselves to recover the body of the thermos you can use tools. Disconnect the bulb from the housing. Dents on the inner side prostuchite a hammer, it will be enough that the case and the bulb is not in contact. Join the parts of a thermos.
Is the advice useful?
To a flask lasts a long time, do not pour boiling water up to the lid. The bulb would not expand under the high temperature and this will prevent the appearance of microcracks.
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