Most of the paper cutters appear in the office, which is an ideal cutting tool for all kinds of paper, photos, art cardboard, hot and cold paper, etc. So as a necessary tool for office work, do you know some small knowledge, such as the type of paper cutter? What are the types of blades? Xiaobian will discuss with you the little common sense about the paper cutter. The paper cutter utilizes the principle of labor-saving lever, because the force acts on the outermost edge of the paper cutter, and the resistance of the paper to the knife is between the handle and the fulcrum, and the force arm of the force is greater than the force arm of the resistance. What are the types of paper cutters? Paper cutters mainly include standard knives, carbon steel knives, high speed alloy steel knives, hard alloy steel knives, and ultrafine polycrystalline steel knives. Standard knives are suitable for use in a variety of normal working conditions without the need for frequent sharpening. The carbon steel knife is anti-wear and has a particularly sharp edge. Under normal circumstances, its performance index is equivalent to 20 times that of the standard knife. High-speed alloy steel knives can be safely used to cut uneven paper slabs, and their performance indicators are four times better than carbon steel knives. Carbide steel knives are very wear-resistant, but they are difficult to process and expensive. Its performance indicators are more than 3 times higher than high-speed alloy steel knives. The ultra-fine polycrystalline steel knife is a kind of super-hard material which combines diamond polycrystal with cemented carbide. It combines the high hardness of diamond with the high strength of cemented carbide. Its performance indicators are 3 times better than hard alloy steel knives. What are the types of blades for paper cutters? Mainly divided into: alloy tool steel cutter blade, high speed tool steel cutter blade. The former is suitable for general cutting, the original grain is more refined, and the chipping resistance is strong. The blade steel and the cutter body combine without defects such as transition and void, and the cutting edge has no peeling to ensure the service life. The latter adapts to a variety of papers, especially cutting a variety of high-gram coated papers, a five-fold increase in sharpening life. High-speed steel with 18% tungsten, wear-resistant, smooth, sharp and stable cutting edge, cutting quality is accurate and smooth. The cutter blade is one of the important parts of the paper cutter. If there is a rough cut in the cut, that is, there is a small gap at the edge of the cutter, or when the surface of the cut is pulled out or the upper and lower cutters are present, the blade is indicated. If it is spent or the knife is blunt, then it is necessary to replace the blade in time, otherwise it will not only affect the quality of the paper cutting, but also affect the accuracy and life of the machine. The choice of the cutting edge angle is very important. The smaller the blade angle, the sharper the blade; the larger the corner angle, the more blunt the blade. Generally, the cutting edge angle of the paper cutting blade should be selected according to the following three aspects: the shear resistance of the cut object, the stacking height of the cutting object, and the cutting speed of the paper cutting knife.
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What are the types of paper cutters? What are the types of blades?