Shredder blade commonly used materials Currently on the market are located in the following categories: SKD-11, Cr12MoV1, 9CrSi, Gr18, Gr15 and so on! For the hardness of different requirements, the use of shredding tools are also different, has become the tool industry manufacturers strive to study one of the important objects.
Plastic materials commonly used in the industry: 9CRSI, W5SI6, SKD-11.
Wood industry commonly used materials: 9CRSI, W5SI6, SKD-11, CR12.
Metal shredding industry commonly used materials: Cr12MoV1, SKH, H13, 6CRW2SI.
Double shaft shredder blade length of service life, the key is the rational use of the blade, it is necessary to tear machine blade production experience. There is the responsibility and technology of on-site processing staff work, for example, some tools although a little wear, but the processing of large local tolerances, so there is no need to choose a knife or a new knife to the processing. In fact, the cost of tool control is not only to improve the life of the tool on the one hand. There are selection of tool brands, as well as the choice of blade material.
Carburizing can strengthen the surface hardness of the hot shredder blades and improve the service life. After carburizing -1140 ~ 1150 ℃ quenching -550 ℃ tempering twice, the surface hardness can reach HRC56 ~ 61 Ordinary quench mill blade life increased by 1.8 to 3.0 times. Vacuum carburizing and ion carburizing have been developed in recent 20 years. The technology has the characteristics of fast infiltration, uniform infiltration, gentle gradient of carbon concentration and small blade deformation. It is playing more and more important role in the future mechanical blade surface treatment Important role.
