Views: 2 Author: Site Editor Publish Time: 2019-11-04 Origin: Site
The sharpness and service life of the A4 paper cutter's cutters greatly affect the production efficiency of this A4 paper cutter. The use effect and service life of the tool depend on four major factors such as the material of the knife, the shape and angle of the sharpening knife, the quality of the sharpening knife, and the type of material being cut.
First, the knife material
The cutter of the single-piece A4 paper cutter is made of high-temperature insert welding of the blade and the body. The blade is made of high-hardness chromium-tungsten-manganese steel, and the blade is made of low-carbon steel. The durability of the tool is directly proportional to the hardness of the steel used in the blade. The high-quality blade has a hardness of HR55 ~ 60 after hardening.
Shape and angle of sharpening knife
On a single-sided A4 paper cutter, a single-edged blade is generally used, and its angle is between 19 ° and 23 °. However, the sharpened edge of this shape is not the ideal shape. During the cutting process, the beveled surface of the cutter is subjected to the pressure from the part of the paper stack that is cut off. In this way, under the friction of the paper edge, the beveled surface of the blade is very Quickly worn. Double-sided blades have obvious advantages. Their sharpening edges help reduce the load on the machine and improve cutting accuracy.
The smaller the angle of the sharpening edge of the tool, the sharper the blade, the smaller the cutting force of the cut object on the knife, the less the wear and power of the machine, and the cut the product will be, and the cut will be smooth. However, if the angle of the sharpening edge is too small, the strength and abrasion resistance of the blade will be reduced accordingly, and the cutting speed and cutting quality will be reduced instead. Therefore, the angle of the sharpening edge should be as small as possible when the material of the cutter allows, and taking into account the cutting force of the cutting object.
Third, the quality of the sharpening knife
The quality of the sharpening knife depends on the production materials and equipment, the technical specifications of the sharpening knife, and the technical level of the operator. The higher the quality of the sharpening knife, the longer the service life of the cutter and the better the cutting quality.
Fourth, the type of cutting material
During the cutting process, the speed at which the blade edge becomes blunt is related to the wear resistance of the material being cut. When cutting paper, the speed at which the blade becomes blunt is related to the texture of the paper and the amount of ash. The faster the blade becomes dull when cutting harder paper with greater ash content.
The above are the four major factors that affect the use of A4 cutters.