Vacuum cup is also referred to as vacuum cup. The principle of heat preservation is to use vacuum to cut off heat conduction, so as to slow down the loss of heat energy and keep in a certain temperature range within a specified time. Besides the appearance, the main thing to buy vacuum thermos cup is heat preservation performance. How long a cup of boiled water can keep heat is also the problem that consumers care about. Now let’s have a detailed understanding of the principle of vacuum cup and its insulation time.
Vacuum thermos cup is generally made of stainless steel liner and shell, through welding to make the liner and shell form a complete cup body, through a series of technological processes into the vacuum link. Vacuuming process is the basic requirement of vacuum vacuum cup, if not vacuuming can not be called vacuum vacuum cup. Whether the vacuum vacuum cup is insulated is often decided by vacuuming, vacuuming success can be called vacuum vacuum cup.
There are many factors that affect how long a vacuum cup can keep warm, such as the time of use and the temperature of the liquid. In the process of use, the collision of the thermos cup is inevitable, which will affect the vacuum performance for a long time, thus reducing the thermal insulation performance of the thermos cup, so the more careful the thermos cup is in the process of use, the longer it can be used. The temperature of the liquid poured into the vacuum cup also affects the holding time, the same cup into 100° boiling water and 60° warm water, the holding time must be different