I believe that some university partners have not only meal cards, but also room cards and water cards. Generally speaking, a room card is used for opening doors and a hot water card for bathing. These cards are all magnetic cards, so it is best not to put them together, or put them together with mobile phones, otherwise they may be degaussed. So, what if the water card is demagnetized? Let's have a look!

What if the water card is degaussed?

If the water card is demagnetized, you can only go to the card issuing center to reissue it, and there is no other way to remedy it. The magnetic stripe on the water card is made of magnetic powder. If the magnetic stripe is close to the strong magnetic field, the order of the magnetic poles will be rearranged, and the originally stored information will be rewritten, thus losing the information. Most importantly, the magnetic card can't be recovered after degaussing, and the lost information can't be retrieved.

Reasons for degaussing the magnetic card: the magnetic stripe card is too close to the magnetic buckle in the wallet and wallet, and even contacts with the magnetic buckle; Put it together with devices such as mobile phones that can generate electromagnetic radiation for a long time; It is too close to household appliances with strong magnetic field effect, such as televisions and tape recorders.

Furthermore, the magnetic card should not be close to high temperature environment or humid environment. Generally, magnetic cards are made of PVC, which will deform or even burn at high temperature, directly leading to the damage of magnetic strips. If the magnetic card is placed in a humid environment or soaked in water for a long time, it will also cause the card to crack and be damaged, and finally it cannot be used.

In addition, do not bend the magnetic card to prevent sharp objects from wearing, scratching or distorting the magnetic stripe. Several magnetic cards are put together and rubbed against each other. Although the magnetic card can't be degaussed, it will damage the magnetic stripe area and the card can't be used again. Therefore, it is best to put the magnetic card in a special card bag or in a protective case.