Thermal insulation strategy for thermos cups
1. Ways of heat dissipation The main ways of heat loss are heat conduction, heat radiation, and heat convection. Thermal conduction refers to the transfer of heat from a high-temperature substance to a low-temperature substance through a medium. Thermal radiation is electromagnetic wave radiation caused by heat, which transfers energy to the outside world in […]
The origin of thermos cups and daily life
Thermos, also known as hot water bottle, is a masterpiece of British scientist Duval, but it was named by German glassmaker Reinhold Berg. The design of the thermos bottle is clever, with a vacuum between the inner and outer walls. Without air, heat cannot be transferred in the vacuum, so the liquid in the bottle […]
Testing method for thermos cups
The testing methods for insulated cups mainly include insulation performance testing, sealing inspection, material verification, and impact resistance evaluation. The core methods are temperature change measurement and inverted water leakage testing. The following are specific steps and standards: 1. Thermal insulation performance test (1) Hot water insulation test Pour nearly 100 ℃ boiling water to […]
Can a thermos hold coffee?
A thermos can hold coffee, but attention should be paid to material selection and time control, as follows: 1. Material and Chemical Reaction Stainless steel insulated cup: It can hold coffee in the short term (2-4 часы), but it should be avoided to store for a long time. Tannic acid in coffee may corrode stainless […]
Maintenance methods for thermos cups
1. Очистка (1) Clean with a soft cloth and neutral detergent in warm water to avoid scratching the inner liner with steel wire balls. (2) The gap between the cup lid can be wiped with a toothpick wrapped in cloth, and regularly soaked in baking soda water to remove odors. 2. Use (1) Avoid storing […]
Can a thermos be placed in the refrigerator?
Insulated cups are usually not suitable for placing in refrigerators, especially in the freezer, for the following reasons: 1. Characteristics of stainless steel material The inner lining of thermos cups is mostly made of stainless steel (such as 304 или 316), and the metal may cause the following problems at low temperatures: (1) Thermal expansion […]
