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The main task of a paper shredder is to break a sheet of paper into tiny pieces so that it becomes unreadable. Therefore, the machine involves the task of cutting and tearing. These tasks will naturally require a sharp object. The shredder blades do this job. One must have noticed that when a knife in the house is used frequently, its sharp edges become dull after a few days.
The blades of the shredder are also almost the same as those of the knives. Since they are used in the task of cutting paper, they can wear due to the frictional force that develops between the paper and the edges of the blades. The friction force is the force that develops between two bodies that are being rubbed together. As a result of this force, the molecules of the blade change their usual position. Therefore, the molecules at the edge of the blades also change position. Finally, the sharpness of the blades decreases.
To sharpen paper shredder blades, all you need is kitchen foil. Aluminum foil in the kitchen can be of any brand. Separate the foil and keep it near the shredder. Then you may need a pair of scissors to cut the foil to 8.5 x 11″ size. You can also fold the foil to the required size. Then the shredder needs to be plugged into an electrical outlet. Then turn it to the ‘on’ state.The foil should now sit on top of the shredder.Now feed the foil through the shredder.Do it like you feed other normal papers.
Aluminum foil works as a sharpening agent. The molecules of the aluminum foil are arranged in such a way that they produce a different type of frictional force on the body being rubbed. As a result, the part of the body that comes into direct contact with the blade is sharpened. The same theory is followed when sharpening shredder blades.
The blades of a shredder do not need to be sharpened regularly. This will reduce the quality and strength of the blades. The shredder should not be overloaded to avoid blade wear.