The circular blade is a circular blade, which is mainly used for slitting cakes, paper, film, gold, silver foil, aluminum foil, copper foil and other items. The blade is required to have the least cutting resistance and the highest wear resistance. Round blade products are widely used in ceramics, printing machinery, paper industry, cartons, forestry, rubber, plastics, food machinery, textiles, electrical appliances, light industrial machinery, aluminum foil, metallized film, tobacco, cigarette machinery, packaging materials, films, Electronic appliances, wires, cables, shipbuilding, chemical fiber, glass fiber, textile, feed, paper tube, forestry, woodworking machinery, plastic crushing, side sealing, middle sealing machinery, bottom sealing bag making machine, wood processing, food packaging, paper making aluminum foil Slitting, metallurgical electromechanical, medicinal materials, rubber and other industries.
Hardware blade companies often use 440c# stainless steel to make round blades: 440C stainless steel has a carbon content of C-1.2%. It is also one of the earliest stainless steels used in the production of food round blades and is quite popular.
If heat treated as a stainless bearing steel, cryogenic treatment is generally recommended prior to the tempering operation. Such cryogenic treatment improves the hardness of the steel, increases wear resistance, and dimensional stability. Therefore, the cryogenic treatment of 440C is also often used in tool heat treatment.
