In fact, the vacuum insulation cup, the length of the heat preservation time depends on the structure of the cup body and the thickness of the cup material.
Generally speaking, the thinner the cup material, the longer it will keep warm. However, the cup body is easy to be damaged and deformed, which affects the service life; measures such as coating the outer layer of the vacuum cup with metal film and copper plating can also increase the degree of heat preservation; large-capacity, small-caliber vacuum cups have a longer heat preservation time, on the contrary, small-capacity vacuum cups , The large-diameter vacuum insulation cup has a shorter heat preservation time; the service life of the vacuum cup also depends on the cleaning of the inner layer of the cup and the time of vacuuming, and the most important thing is the structure of the vacuum furnace.
The vacuum equipment used in the society for vacuuming vacuum flasks includes vacuum exhaust tables and vacuum brazing furnaces, and there are about two types and four types. One type is the desktop type with tail vacuum exhaust; the other type is the type of brazing furnace. The brazing furnace type is divided into: single chamber, multi-chamber, and multi-chamber with increased pumping speed.
Single-furnace overall vacuum brazing furnace. The vacuuming cycle of this furnace is long. If the manufacturer wants to improve production efficiency and shorten the vacuuming time, it will affect the service life of the cup. The service life of the cup is only about 8 years. Vacuum cup exhaust table with tail and its advantages: the vacuum cup produced by the vacuum exhaust table with tail exhaust, the heating temperature is about 500 ℃ when vacuuming, the outer shell of the vacuum cup is not easy to deform, but the welding part of the copper tube is easy to touch Leakage, special protection should be taken during the processing of semi-finished products.
In addition, a large category is the vacuum brazing furnace type, which is roughly divided into three types. Unexpectedly, although the vacuum insulation cups we usually use are no different from ordinary insulation cups in appearance, vacuum insulation cups are often used in the production process. Generally, thermos cups are much more complicated and technically more difficult. Therefore, the price of vacuum insulated cups is at least twice as high as that of ordinary insulated cups.
