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What's the reason why the thermos cup doesn't keep warm-Alice factory

November 13, 2021

1. Being severely hit or injured by a fall, etc. After the insulation cup is hit hard, there may be a rupture between the outer shell and the vacuum layer. After the rupture, air enters the interlayer, so the insulation performance of the insulation cup is destroyed. This is normal. No matter what kind of cup, their principle is the same, that is, double-layer stainless steel is used to extract the air in the middle to reach a certain degree of vacuum. Make the heat of the water inside transfer out to the outside as slowly as possible.

2. The seal is not good. Check to see if there is a gap in the bottle cap or elsewhere. If the cap is not tightly closed, the water in your thermos cup will soon become cold. The common vacuum cup on the market is generally a water container made of stainless steel and a vacuum layer, with a lid on the top and a tight seal. The vacuum insulation layer can delay the heat dissipation of liquids such as water inside to achieve the purpose of heat preservation. Falling off of the sealing cushion and the cup lid is not tightly closed, etc. will make the sealing performance poor, thereby affecting the thermal insulation performance.

3. The cup is leaking. It may be that there is a problem with the material of the cup, and some vacuum cups have defects in the process. Pinhole-sized holes may appear in the inner container, which accelerates the heat transfer between the two walls of the cup. Therefore, the heat is quickly lost.

4. The sandwich of the thermos cup is filled with sand. In order to use shoddy methods to manufacture vacuum flasks, such vacuum flasks are still very thermally insulated when they are bought, but after a long period of time, the sand may react with the inner pot, causing the vacuum flask to rust and the insulation effect is very poor. .

[Disclaimer: The above content comes from the Internet, and does not represent the views of this site. I hope some of the content can help you. 】


We (Alice) are a manufacturer specializing in the production of nameplates for daily necessities. We have 21 years of experience in making furniture signs. We can produce zinc alloy, aluminum alloy, stainless steel, copper, brass, iron, and titanium. , PC, PET, PE, pvc and other different labels.

Contact us E-mail: sales03@alicelogo.com

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