Magnet Accident
Posted: December 15th, 2009 | Author: Habi | Filed under: Uncategorized | Tags: Science | 2 Comments »Here some geek stuff: Magnetnerds
The so called Neodymium Magnets are currently the strongest type of permanent magnet available in the world. That this is not always just plain fun experienced a Dutch guy at his own’s figure. Two of those magnets collided over a disctance of 20 inches (50 cm) and smashed his finger!
That Sunday night I placed on of them a bit in line with one of the others but still within a safety distance (I thought) !!! When I rotated the magnet the other raised it self upwards due to the same poles. I know that I thought (ooops … take care) and before I knew it the one that raised itself upwards turned around and within a split second the two magnets collided to each other with the top-part of my finger between them. Due to the brutal force my finger was splashed and pushed out between the magnets leaving skin and my complete nail between the two magnets. The collision was so strong that on the carpet I found only some drops of blood spread around the magnets.
Read the whole story! (Warning: graphic and objectionable content)
Now, with the bonded magnet method it is processed by a rapid solidification technique. Then the sintered magnets are processed from pulverized ingot which enables the powder to develop blocks. Then the magnet manufacturer heats them up prior to shaping and packaging them for their customers. Then the surface that is treated is magnetized. This particular method is common in both China and Japan. The melt spinning method is used for the bonded magnets in a mixture of the three alloys.
The spinning method for the thin segments of the alloy consists of a ribbon that is pulverized prior to being mixed with the polymer — this consists of a method of either compression or injection molding.
One of the most popular rare-earth magnets is known as neodymium magnets.