What are the main reasons for the insulation cup not being insulated?
Oct 06, 2023
What are the main reasons for the insulation cup not being insulated?
1. The main reason why the insulation cup is not insulated is that the vacuum layer between the two shells has been damaged. Previously, it was vacuum inside, but now it is already air inside. So the insulation cup also loses its insulation function.
2. The principle of thermos cups is the same as that of thermos bottles. They both use a double shell and extract the air between the two shells, creating a vacuum environment. The heat transfer ability of vacuum is very poor, which greatly reduces the convection and conduction of heat energy.
3. A good insulated cup, thanks to the lid. It can be said that the insulation performance of the thermos cup is determined by the insulation performance of the bottle cap. Many common insulation cups are polished on the inner side of the cup, which can refract thermal radiation infrared rays. Maximize the retention of thermal energy inside the cup.
Method for selecting insulation cups:
1. The weight is relatively high, indicating that the materials used are better. Everyone should pay attention to this point.
2. The lid of an insulated cup is very important. It is best to choose a PC material cup for the lid, as PC material is more environmentally friendly and will not produce harmful substances due to high temperatures, while other plastic products should not be chosen.
3. Observe whether the bottom of the insulation cup's inner core is very smooth and has obvious curves. If there are any, it indicates good quality.
4. Pour a cup of boiling water into the insulated cup, then cover the lid of the insulated cup to see if the surface of the insulated cup will heat up. If you feel the surface of the insulated cup heat up, it indicates that the insulation effect of the insulated cup is poor and the quality is not very good.
5. The material of the insulation cup is very important, especially the inner core of the insulation cup is best made of 304 steel material. This material can provide good insulation and will not produce harmful metals to the human body.
