It’s very often today you may find Rare Earth Magnets utilised in the production of retail packaging. That is generally paper box construction which includes one or more movable flaps. Often affecting top quality kids book collections, DVD collections, or such things as Craft type kits found packaged in paperboard. It can be considered a replacement to your hook and loop type fasteners (i.e. Velcro) seen in older style boxes.
There are 2 configurations which should be considered.
1) Using two rare earth magnets
2) One rare earth magnet, the other little bit of ferrous metal
Selecting which replacement for choose depends on a several factors:
Gap – what is going to function as the total distance involving the magnet/metal pair
Feel – the amount force do you want the end user to make use of when opening
Due to the somewhat fragile nature of rare earth magnets, it will always be recommended that in assembly of the box, how the two parts (two magnets, magnet/metal) not allowed to come in direct hitting the ground with one another. This can minimize any chance the magnet could break as a result of shock when the box is closed.
Two Magnets – This configuration is best utilized any time a stronger bond is needed, and once the information is thick, making a larger gap bewteen barefoot and shoes. Magnets may be inserted into paper board that is die-cut, or like be surface mounted and laminated over (or perhaps a decorative design, sticker or pad of some kind could be placed in the magnet). Attention must be made during assembly so that the polarity was in an attracting configuration. Some manufactures offer rare earth magnets that happen to be marked for the North seeking pole to assist in assembly. If magnets are improperly mounted in a opposing Trapezoid Chamfer , they’re going to repel plus the box is not going to close. Magnets wish to attract to each other in a very exact manner, and so the two magnets should mate together in close proximity to the ideal bond that occur.
Magnet & Steel – This configuration is best utilized each time a slightly weaker bond is desired, the material getting used seriously isn’t heavy, or when price tag would be the limiting factor. Using steel because mating piece to your magnet cuts the total cost substantially as steel is a reasonably bit less than the rare earth magnets. Steel discs, washers and other similar steel can be used the mating part to your rare earth magnet. Another factor making the magnet-steel combination attractive would be the keeping magnet. Alignment with the steel piece just isn’t as critical as the magnet will attract well on the steel if it’s over-sized or otherwise centered. Lastly there won’t be concerns with polarity when using the magnet-metal configuration, because the magnet attracts to the steel equally on either the North or South seeking poles. Steel pieces are mounted from the similar ways because the magnets and box may very well be die-cut and the metal inserted, it can be taped in, glued in, and it also may be laminated over with the totally invisible bond.
Equally for magnet-magnet and magnet-steel configurations there’s 2 factors which use a stronger solution from the bond.
1) The diameter with the magnet. Larger diameter (larger surface areas) of the magnets will yield stronger the bonds.
2) The thickness of the magnet. Thinner magnets do not possess as often holding strength as thicker magnets.
Just experiment. Try various configurations for your box construction. It may be more effective with one larger pair, or two smaller pairs. If the bond is simply too strong, slow up the magnets diameter, variety of magnet pairs, or perhaps the thickness on the magnets or steel.
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