The use effect and life of the paper cutter blade. When using paper cutters such as automatic paper cutters, numerical control paper cutters, and program-controlled paper cutters, paying attention to working skills can improve the use efficiency and service life of paper cutter blades.
Knife-making materials for paper cutter blades
The single-piece paper cutter blade is made of high-temperature welding between the blade and the blade body. The blade material is high-speed steel, and the blade body is made of low-carbon steel. The hardness of the blade of the paper cutter determines the durability. The high-quality paper cutter blade has a hardness of HRC58~60 after heat treatment.
Paper cutter blade grinding angle
The single-sided paper cutter blade is a single-edged blade, and the angle of the blade grinding edge is ∠19°~23°. The grinding edge of this shape makes the beveled surface of the blade bear the pressure of the edge of the paper during cutting, and the blade edge is quickly worn. The double-sided blade has good wear resistance, and the ground edge can reduce the load of the paper cutter and improve the accuracy of paper cutting. When the material of the paper cutter blade is excellent, the angle of the grinding edge should be less than ∠19°~23° in consideration of the shear resistance of the cut paper.
The quality of paper cutter blade grinding
When grinding the blade, the higher the grinding finish, the smaller the cutting resistance, the longer the service life of the paper cutter blade, and the better the cutting quality.
The type of paper the paper cutter cuts
In the cutting work of the paper cutter, the speed of the passivation of the blade of the paper cutter is related to the softness and hardness of the paper to be cut. When the paper cutter cuts paper with hard texture and high ash content, the blade will passivate quickly, especially when cutting various high-gram coated paper.
