Thermos plug to absorb, how ability take out?
Because cork stopper wear smaller or leak. Originally, when boiling water into the thermos, continue to a large number of evaporation, water vapor because the cork wear, so the cork plug and bottle friction decreases, and instead has flat places. And water vapor through the cork and bottle of aperture, the thrum "zi zi", the friction force is not enough, the plug will rush out by steam pressure. When use of water in the thermos upside began to accumulate a large amount of air. Because of thermos of heat preservation performance is bad, the part of the gas will be cold at night, then the pressure decreases, less than atmospheric pressure, the cork in the outside world under atmospheric pressure, the plug to suck, until the bottle diameter small parts to shrink to prevent it from further. At this time, the outside atmospheric pressure is still greater than the pressure inside the thermos, the difference between the outer and inner pressure, make cork difficult to pull out
Produce is sucked thermos plug, there are two reasons for this phenomenon: one is the vacuum interlayer is bad. Such as: inside plating layer peeling of mercury, lead to prevent thermal radiation ability is poor. Or inside the vacuum seal is broken, the interlayer is no longer a vacuum that prevent heat conduction ability is poor
Pull out the cork method is very simple, rotate the cork, let air flow can have the opportunity to flow into the inside the thermos. So the outer and inner pressure is equal, thermos plug is easily removed it.
