What is the principle of vacuum cup
1. Principle of vacuum cup The vacuum cup uses the principle of space separation. It has two or more layers inside, and the space in the middle is usually a vacuum layer. Vacuum is an insulating material that can effectively prevent the transfer of heat. In the case of constant external temperature, the heat in […]
Stainless steel thermos cup water rising process and drawing process which is better
1. Drawing process (1) Process flow The drawing process is to heat the plastic particles to a molten state, extrude them, and then stretch, blow, cap and other processes. Can produce high quality, high transparency thermos cup. (2) Characteristics The insulated cup made by drawing process has thin wall, light weight, high strength, good transparency, […]
