The weather is getting colder and colder, and there are more and more people drinking water from thermos cups. So what everyone cares about when buying stainless steel thermos cups is the length of heat preservation time. So do you know what factors determine the length of heat preservation time of thermos cups?

stainless steel thermos cup

Generally speaking, the thinner the cup material, the longer the holding time. However, the cup body is easily 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-diameter vacuum cups have a longer heat preservation time, on the contrary, small-capacity vacuum cups , The large-diameter vacuum insulation cup has a short holding 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 market for vacuuming vacuum flasks includes vacuum exhaust table and vacuum brazing furnace, and there are about two types and four types. One type is benchtop with tail vacuum exhaust; the other type is brazing furnace type. The brazing furnace type is further divided into: single chamber, multi-chamber, and multi-chamber with increased pumping speed.

Single furnace type integral vacuum brazing furnace. The vacuuming cycle of the 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. The vacuum cup exhaust table with tail and its advantages: the vacuum cup produced by the vacuum exhaust table with tail exhaust, the heating temperature during vacuuming is about 500 ℃, the shell of the vacuum cup is not easy to deform, but the copper pipe welding place is easy to touch Leakage, special protection is required when processing semi-finished products.

The above is a detailed introduction to the length of the heat preservation time of the stainless steel thermos cup? In fact, the length of the heat preservation time depends on the structure of the cup body and the thickness of the cup material.