Test Methods of Thermos Cup

 

The cup is one of the most important daily necessities for us. The creation of the cup has brought us a lot of convenience. Because of the practicability of the cup, it has entered into our life. Vacuum cup is made of inner and outer double stainless steel. The inner linner and the shell are combined by welding technology. Then the air in the interlayer between the inner liner and the shell is pumped out by vacuum technology to achieve the effect of vacuum insulation.

 

Because stainless steel vacuum cup can be customized according to requirements, more and more people regard it as a gift for friends, customers and promotion. Or make your own company information or send blessings on the cup or on the cover. This custom gift is being accepted by more and more people.There are some methods of testing thermos cup are worth learning!

 

• Thermal insulation test

 

This is the main technical index of the thermos cup. After the thermos cup is filled with boiling water, screw the cup lid clockwise. Waiting for 2-3 minutes, touch the outer surface and lower part of the cup body by hand. If there is obvious warm phenomenon in the cup body and upper part of the cup body, it means that the inner container has lost its vacuum degree and can not achieve good heat preservation effect.

 

• Sealing Examination

 

Fill the cup with water and turn it upside down for four or five minutes.  Screw the cover tightly and put the cup flat on the table. If there is no leakage, it means that the sealing performance is good; In addition, we also need to see if the rotation between the cup cover and the cup mouth is flexible and whether there is a gap.

 

• Inspection of accessories safety

 

The environmental protection of plastic is also a concern. If the cup is made of food grade plastic, it has little odor, bright surface, no burr, long service life and is not easy to aging. Ordinary plastics or recycled plastics have strong smell, dark color, many burrs, and are easy to be aged and broken.