Is there a way to quickly identify whether the thermos cup is qualified? (two)

After testing the thermal insulation performance and sealing performance, we will test whether the stainless steel material of the thermos cup is qualified.We open the lid and pour out the hot water in the cup. Speaking of this, the editor just shares another article on the quality of thermal insulation performance. After pouring out the high-temperature hot water from the water cup, the friends put the cup mouth upwards on the table, and the results of the thermal insulation performance of this water cup can be obtained through observation.

The better the insulation effect, the better the insulation effect of the thermos cup. When the hot water is poured out and left to stand, the remaining water stains in the cup will evaporate quickly. On the contrary, the slower the volatilization, the worse the insulation performance of the water cup. Give everyone a reference time (due to the different diameters of the mouth of the water cup and the different structure of the water cup, this reference time is only a comparison data and cannot be used as an accurate measurement condition.)

5 minutes, during this time the water is completely volatilized, indicating that there is no problem with the performance of the water cup thermos. The shorter the time, the better the heat preservation effect, on the contrary, the longer the time is, the worse the heat preservation effect of the water cup is. After the moisture inside the thermos is completely dry, let's find a magnet. Friends without magnets check whether there are magnets on their Bluetooth headsets and other items. Use a magnet to absorb the inner wall of the water cup to see if it is magnetic. The food-grade 304 stainless steel and 316 stainless steel that are usually used in the production of water cups will have very weak or no magnetism.

At present, the international market requires that the safe material for the production of thermos cups should be 304 stainless steel or 316 stainless steel, and stainless steels other than these two grades cannot be used as materials for the production of thermos cups. If you find that the magnetism is very strong during the test, there is a problem with the material. If the magnetism is found to be weak or not felt, it means that the material is 304 stainless steel or 316 stainless steel.

Many friends buy a thermos cup liner with a material number symbol on the bottom inside, such as SUS304 or SUS316. Friends, when doing the magnetic test of the magnet, don't just test the inner wall of the water cup liner, but also test the bottom of the water cup liner with the magnet. If you find that the magnetic force of these two places is different, it means that the materials inside the water cup liner are different, which is also problematic. Although it cannot be said that the material is unqualified, there must be suspicion that the goods are not on the right board.

Dongguan Zhanyi Commodity Technology Co., Ltd. specializes in the production of metal cups, plastic cups, coffee cups, suction mug, lunch boxes, food jar, travel mugs, portable water bottles, sports bottles, home life desktop trash cans, thermos bottles, etc.These products are all our annual exports, and are recognized and loved by the US, Europe, Australia, Japan, South Korea, Taiwan, Hong Kong and other consumers. Support for small quantity order, fast customization.