Things you don't know about watch antimagnetism
Things you don't know about watch antimagnetism
A magnetic field is a special substance that cannot be seen or touched, but magnetic fields do exist around us, and even within our bodies there is a unique magnetic field. Magnets can attract some metals. Two magnets repel each other and attract each other. This creates a magnetic field. A magnet is a magnet.
For friends who enjoy wearing watches, anti magnetism is one of the most inevitable issues in daily wear.
Why is a watch magnetized?
Mechanical watches are prone to magnetization due to the presence of many steel materials, such as large and small steel wheels, escapement wheels, gear shafts, bearings, screws, and springs. Once a mechanical watch is magnetized, the first impact it brings is an increase in error, and in severe cases, it can also cause the watch to stop running. Although quartz watches do not have the problem of being magnetized, there is a possibility of stopping in a strong magnetic field.
Items in daily life can also cause watches to become magnetized.
Mobile phones, chargers, Handset, computers, razors, radios, magnetic buttons on bags, refrigerator doors, Induction cooking, microwave ovens, etc. Of course, if you are a pilot, the magnetic field you will face will be stronger. If you touch electromagnetic objects at a long distance in a narrow space, the hairspring of your watch will become magnetized. If the watch's hairspring experiences magnetization, then sorry, you can only replace it with a new watch.
Why do watches need to be anti magnetic?
Although magnetic fields exist, what is the relationship between them and watches?
The answer is of course highly relevant. Firstly, it should be clarified that the anti magnetic watch we are referring to does not mean that all internal components of the watch are anti magnetic. The so-called anti magnetic only refers to some main components, such as the pendulum, hairspring, spring, etc., made of anti magnetic materials. The escapement structure, hairspring, and swing wheel components of early clocks were made of metal, which were bound to be affected by magnetic fields, causing timing problems and posing great harm to the clock itself.
The internal escapement structure and hairspring of previous watches were mostly made of steel, which is a hard magnetic material that is easily magnetized. The key to the problem is that the escapement structure components and the hairspring pendulum are the most sensitive components to magnetic fields in the watch movement. The oscillation period of a watch is determined by them, so once the watch is magnetized, its timing accuracy will immediately deteriorate. In order for a watch to achieve precise timing, anti magnetism is imperative and indispensable.
How to diagnose whether a watch is magnetized?
1. Use a sensitive compass to lay it flat. Then quickly sweep the watch over the top of the compass at close range. This action also requires changing the watch's position a few more times, and then repeat as long as the compass needle moves. It means that the watch has been magnetized.
2. The performance after being magnetized is that the watch suddenly gains more speed; Exceeding the normal range, it will be several minutes or more faster in a day. If you notice that your watch suddenly moves faster, it may be magnetized.
What is the anti magnetic standard for watches?
In national standards, the performance standard of anti magnetism is represented by "residual effect", which refers to the difference between the instantaneous diurnal difference of the watch before detection and the instantaneous diurnal difference of the watch after detection. The standard for anti magnetic watches is that when the watch is accidentally exposed to a magnetic field of 4800A/m, the residual effect of a quartz watch does not exceed 1.5 seconds, the residual effect of a mechanical men's watch (with a movement area greater than 314 square millimeters) does not exceed 30 seconds, and the residual effect of a mechanical women's watch does not exceed 45 seconds. Such watches can be called anti magnetic watches.
Non magnetic: able to withstand a magnetic field of 1600A/m;
Ordinary anti magnetic: able to withstand a magnetic field of 4800A/m;
Enhanced anti magnetic: able to withstand a magnetic field of 16000A/m.
How do we demagnetize watches in daily life?
The technology and materials of anti magnetism are constantly changing. Although the anti magnetism function of watches is becoming more and more cool, the key to anti magnetism of watches still lies in daily maintenance and attention to wearing.
Nowadays, various household appliances not only bring convenience to us, but also bring magnetic fields. Similarly, mobile phones are inseparable from us, but they are also emitters of magnetic fields. When wearing and keeping watches, it is important to stay away from these strong magnetic field environments.
Below, the editor will add some daily precautions for anti magnetism:
1. Do not casually open the back cover of the watch to prevent dust, fibers, moisture, etc. from entering the interior of the watch;
2. Regularly wind up your feet every day, which can help the watch maintain accurate timing;
3. Pull out the handle to pull out the needle, either reverse or clockwise. After pulling the needle, push the handle to the upper position;
4. The watch casing should be regularly wiped and kept clean;
5. When the watch is not in use, it should be placed in a dry place without Mothball;
6. In situations of intense exercise or high vibration, it is advisable to remove the watch to avoid damaging the parts;
7. Although wristwatches have certain anti magnetic properties, they still need to avoid contact with strong magnetic fields to prevent magnetization of the parts, which may cause changes in the movement of the watch machine;
8. Do not let the watch come into contact with corrosive liquids and gases such as acids, alkalis, and salts. Prolonged sweat erosion can cause rust spots on the watch case. When using a watch in summer, it is best to use a pad to separate the watch from the arm;
9. Watches have certain speed errors. As long as the error does not exceed the standard, do not frequently move the speed needle;
10. If you do not understand repair techniques, please do not move the parts inside the meter or refuel at will to avoid accidental losses;
11. Wind it up every once in a while to prevent the lubricating oil from solidifying and affecting the running time;
Finally, stay away from strong magnetic fields! Please say important things three times.
I want to say Goodbye to you again.This concludes today's sharing.Thank you for your support to Window's Clock & Watch CO.,LTD .!
