2021-01-15
In order to ensure the welding quality of the steel inserts, the welded blades should be carefully inspected to find out the causes of defects and improve them. Before the inspection, the steel insert blade should be sandblasted or lightly ground to remove the solder and impurities adhering to the b
2020-12-29
1. Slitting knifeThe slitting blade is mainly used for slitting paper, film, gold, silver foil, copper foil, aluminum foil, tape, and other items. The slitting of these objects requires the blade to have the least cutting resistance and the greatest wear resistance. Due to the requirements of produc
2020-12-24
In order to meet the needs of the international cutting tool market, Nanjing Jingfeng Cutting Tool Company has developed HSS steel round knives, with an outer diameter of 200∼400mm, a thickness of 5∼10mm, and an inner hole of 145∼254mm. The round blade requires a hardness of 62.5∼64HRC; flatness and
2020-12-14
Now, with the pace of environmental protection, more and more waste materials are used for processing and recycling. Faced with these different solid wastes, especially some high-strength steels such as steel bars, and sticky wastes, the quality requirements for shredder blades are getting higher an
2020-12-11
Tungsten steel cutting blades are cemented carbide materials made of tungsten carbide powder and cobalt as the main components, which are sintered at a high temperature of 3000 degrees in a vacuum. The hardness is determined by the amount of cobalt, generally 88- Between 92 degrees, no heat treatmen
2020-12-03
NJJF specializes in the production of various food processing blades, special blades for mutton and beef slicers, bread slicers, fruit slicers, vegetable slicers, and other industrial mechanical blades, and round slitting blades. We choose domestic high-quality steel, such as SUS440C, SUS420J2, 9CR1
