1. Bottle heating method The reason why the bottle cap cannot be opened is often because the pressure inside the bottle is lower than the outside of the bottle, and it is difficult to open it under the action of atmospheric pressure. We have learned the method of “expanding with heat and contracting with cold” in physics class, so we can consider heating the bottle body to increase the internal air pressure. When the pressure inside and outside the bottle is similar, the bottle cap can be easily opened; heating is relatively simple and safe The best way is to soak in hot water, generally soak for 15 minutes.
2. Bottle cap heating method Similar to the method mentioned above, the difference is that the bottle cap is heated, because the bottle cap itself becomes loose due to thermal expansion, and the bottle cap can be easily opened at this time. The method of operation is to put the cap part down into the hot water, and soak for about 5 minutes.
What are the techniques for opening the bottle cap?
3. Increase the friction method You will have such an experience that when you twist the bottle cap hard, it will slide, and you feel that you have strength but you can’t make it in place. What should you do? The method is to increase the friction , It can be realized by using rough dry cloth, steel wool and other tools, just put it on the bottle cap and twist it hard.
4. Pry cap method Insert a spoon, knife, etc. with a small pointed end into the slit between the cap and the bottle, and use the lever principle of physics to pry up the edge of the cap. At this time, a “bang” will be heard, and then You can easily unscrew the bottle cap. Note that the force should be slow to prevent accidents.
5. The water hammer method tilts the bottle mouth downward about 45°, holds the bottle tightly with one hand, and uses the palm of the other hand to slap the flat bottom to form water pressure on the bottle cap, thereby destroying the vacuum state maintained in the flat body. That is the water hammer method. Yantai Huafeng Machinery reminds you: It is best to heat the bottle body or the bottle body by soaking in hot water, other methods are prone to accidents. In addition, it is not recommended to use the prying cover and water hammer method, because accidents are prone to occur.
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