What are the reasons that affect the effectiveness of the slitting machine blade? How to use the pneumatic slitting machine, corrugated cardboard slitting machine, and metal slitting machine correctly in the production process to improve the efficiency and lifespan of the blades?
The material used for making knives is a key factor in the durability of slitting machine blades; Ordinary cutting blades for paper, plastic, and film should be made of SKD-11 alloy steel with high chromium content; High speed slitting machine blades require high wear resistance, so high-speed steel is the best cutting material;
In general, the durability of a blade is directly proportional to its heat treatment hardness; Therefore, high-quality slitting machine blades can achieve a hardness of HR55-60 after quenching treatment, while blades made of high-speed steel materials also need to undergo vacuum heat treatment to achieve ideal hardness and toughness.
The precision of blade grinding and the angle of the blade edge are also factors that affect the lifespan. Generally, slitting machine blades adopt a single blade edge design, with a grinding angle of around 30 °. Usually, the angled surface of the blade bears a relatively large frictional force during the cutting process. Under the friction of the paper edge, the inclined surface of the blade is quickly worn out. Considering the size of the cutting object's resistance to cutting force, the angle of the grinding edge should be minimized as much as possible.
When choosing a blade, the texture of the cutting material should be taken into consideration; The speed at which the cutting edge becomes blunt during the cutting process is related to the wear resistance of the material being cut. When cutting materials with harder texture and greater toughness, the texture and hardness of the selected slitting machine blades should be better.
Cutting machine blades are specialized blades used in the printing and packaging industries, and the cutting accuracy, sharpness, and service life largely affect the production efficiency of products; Reasonable selection of cutting machine blades can better increase the production efficiency of finished products and shorten the cutting time.
