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#12 | |
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Member
Join Date: Mar 2006
Location: Room 101, Glos. UK
Posts: 4,259
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Quote:
any piece of iron or carbon steel can be magnetized using another strong magnet, or electromagnet. magnetic kitchen knife racks a noted example. some knife sheaths for modern knives incorporate a strong neodymium magnet to hold the knife in rather than a strap. i imagine that also would impart a magnetic charge on the blade. i've heard of someone who could magnetise a steel rod by hitting it on one end with a hammer to align the molecules. never tried that tho. you can DE-magnatise iron by heating it to the curie temp (roughly 750C) but it must then be re heat treated and tempered, not recommended for a finished blade. electric degaussers would be better. as this temp is reached during forging, carbon steel blades are initially non-magnetic, picking up a charge later in life. some people have success degaussing by repeatedly dropping a magnetised tool on a hard floor, that again changes the magnetic field, but randomly. kinda rough on a knife tho. |
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