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Given the relative permeability of a material can vary from around 250 for cobalt to around 5000 for soft iron and 7000 for silicon–iron, the choice of magnetic core can therefore have an important impact upon the strength of a magnetic lock. Also relevant is the choice of current, number of loops and effective length of the electromagnet.
An electric current typically energizes the electromagnet to attract and hold the steel plate, keeping the door open. Unlike electromagnetic locks, the magnetic attraction of an electromagnetic door holder is usually weak enough that it can be manually overpowered at any time by anyone, allowing the door to close. [citation needed]
Representation of a magnetic latch configuration that can turn the external magnetic field ON and OFF by rotating one of the magnets. If we rotate one of the hard magnets (north pole point down), the iron U on top will see a north pole and a south pole. The other iron U will see exactly the opposite.
A magnetic keyed lock or magnetic-coded lock is a locking mechanism whereby the key utilizes magnets as part of the locking and unlocking mechanism. Magnetic-coded locks encompass knob locks, cylinder locks , lever locks , and deadbolt locks as well as applications in other security devices.
A slam latch uses a spring and is activated by the shutting or slamming of a door. Like all latches, a slam latch is a mechanism to hold a door closed. The slam latch derives its name from its ability to slam doors and drawers shut without damaging the latch. A slam latch is rugged and ideal for industrial, agricultural and construction ...
Believe it or not, the search term "stove shelf" has over 926 million views on the platform, making this humble magnetic spice rack one of the most popular small-space hacks for 2023. Shop Now 30 ...
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