I believe that many suppliers of double wall Insulated water bottles are not quite right about the concept and understanding of thermos water bottle when communicating with customers that many people . Most of them think that as long as it is a double-wall cup, it can have the effect of heat preservation. Let’s FuWinn to find it for you.
Let’s explain to you what kind of tumbler is the thermos water bottle.
The principle is that the thermos water bottle uses the tailless vacuum technology to empty the air in the middle layer of the double-layer stainless steel water bottle, which can delay the heat transfer, so that the thermos water bottle has the function of heat preservation. This void minimizes heat transfer through conduction, preventing the escape of warmth from hot liquids or the intrusion of external temperature for cold beverages.
At present, the vacuum process sealing methods in the metal parts thermos cup industry are mainly divided into two types: one is tail sealing; the other is tailless sealing.
One is tail sealing
Tail sealing means that the thermos cup will have a small tail at the bottom after vacuuming. The process is to weld a copper tube on the hole through which the air is extracted from the thermos cup (the sealing of the welding is very good). The size of the copper tube is the same as the aperture. Use a copper tube to clean out the interlayer air between the inner tube and the outer tube of the tumbler cup. After the vacuum is drawn, cut the copper tube. The deformation of the copper tube during cutting will achieve a sealed state, but there will be a section of copper tube left for insulation bottom of cup.
The other is tailless sealing
Tailless sealing vacuum is to place a small glass next to the air extraction hole on the bottom of the insulated tumbler tube, then put the water tumbler into a sealed environment, evacuate the sealed environment, and evacuate the vacuum at the same time Heat this space, and after the vacuum reaches a certain value, the heating temperature will also reach the value that melts the glass. Through the melting of the glass, the hole at the bottom of the water tumbler will be sealed, thereby obtaining the vacuum degree inside the insulated tumbler. This process will melt the bottom of the stainless steel water bottle. No tail-like copper pipes will be left behind.
However, with the tailed vacuum sealing method, the sealing state is obtained through the deformation of the copper tube, and the sealing state is not ideal. Long-term use of some products will allow air to enter inside, which will cause the insulation performance to fail. The space in the vacuum state has a negative value that is less than the atmospheric pressure. As long as there is a tiny gap in the seal that cannot be observed by human eyes, the air will be slowly sucked into the vacuum environment due to the negative pressure, making the vacuum As the pressure of the environment increases, the vacuum degree of the vacuum environment will become lower and lower as air enters. After a certain period of time, the insulation performance will fail and the stainless steel water bottles will no longer be insulated.
The tailless vacuum sealing method has good sealing performance due to the sealing of the glass, and will not cause thermal insulation failure due to sealing problems. But the cost of this kind of sealing material for glass is a bit high. Moreover, if the water tumbler falls to the ground for any reason during use, this fall may cause the sealed glass to break. Since the glass is fragile and easily damaged, the insulation performance of the thermos cup will fail.
And “Tailless vacuum” is currently one of the most advanced process technologies. That is, the vessel is controlled by a computer to complete the process of pumping, sealing, welding, and cooling under vacuum environmental conditions.
There Are Many Features of tailless vacuum technology for Water Tumbler.
Please see below for the instruction of tailless vacuum technology for the water tumbler with 3 points.
1. High vacuum degree and long heat preservation time
Since it is evacuated and sealed at nearly 1000°C, if the vacuum degree is the same as that of tailed vacuum, when the insulated tumbler returns to normal temperature, its vacuum degree will be much higher than that of “tailed vacuum”.
2. Large effective capacity
Since there is no rat tail like a “tailed vacuum”, there is no need to set up a “tail hiding room”, so the effective space is large. Compared with products with the same appearance volume as “tailed vacuum” products, the internal effective space of “tailless vacuum” insulated tumbler is much larger.
3. Long service life
“Tailed vacuum” uses “pressure sealing technology”. This technical measure cannot completely guarantee airtightness from a micro perspective. The “tailless vacuum” uses “fusion sealing technology”, which melts the solder at high temperature and seals the air extraction hole, so it can ensure that there is no gas or air leakage for a long time.
What else is needed for a vacuuming device for a stainless steel tumbler?
- The tightness of the stainless steel tumbler lid also plays a crucial role. A properly sealed lid prevents heat from escaping or cold air from entering, ensuring a more consistent temperature for a more extended period.
- A sealing fixture used to clamp the insulated tumbler. The bottom of the sealing fixture has an installation port, and the thermos cup is connected to the sealing fixture through the installation port.
- A vacuum interface is provided on the sealing fixture and used to evacuate the inside of the stainless steel tumbler fixed on the sealing fixture, and the vacuum interface is connected to a vacuum machine.
- Laser welding machine is used to weld the gap at the bottom of the stainless steel tumbler to achieve a sealing effect.
Now do you know how to Choose Right Double-Walled tumbler cup to Keep Warm or Cold?
So from about, we think can you must clear know not all double-walled tumbler cup are created equal, like tumbler glass, plastic bottle, ceramic tumbler etc. And now we trust you already have an answer. And FuWinn water bottle are Tailless sealing technology. So chat us and we are more professional.
