What kinds of blades are commonly used in double-shaft shredders?

The commonly used materials for shredder blades are currently positioned on the market as follows: SKD-11, Cr12MoV1, 9CrSi, Gr18, Gr15, etc.! The requirements for hardness are different, and the shredder tools used are also different, which has become one of the important objects for the tool industry manufacturers to study first. Commonly used materials in the plastic industry: 9CRSI, W5SI6, SKD-11. Commonly used materials in the wood industry: 9CRSI, W5SI6, SKD-11, CR12. Common materials used in the metal shredding industry: Cr12MoV1, SKH, H13, 6CRW2SI. The key to the length of the service life of the blade of the double-shaft shredder is the reasonable use of the blade, which requires the production experience of the shredder blade manufacturer.

There is also the sense of responsibility and skills of the on-site processing staff. For example, although some tools are a bit worn, the tolerances of the processing places are relatively large, so there is no need to choose a light knife or a new knife for processing. In fact, the control of tool cost is not only to improve the service life of the tool. There is also the selection of tool brands, and the selection of blade materials, and so on. Carburizing can strengthen the surface hardness of the hot shredder blade and increase the service life; after the steel is carburized-1140～1150℃ quenching-550℃ tempering twice and other heat treatment processes, the surface hardness can reach HRC56～61.

The blade life of ordinary quenching crusher is increased by 1.8 to 3.0 times. Vacuum carburizing and ion carburizing are technologies developed in the past 20 years. This technology has the characteristics of fast carburizing speed, uniform carburizing layer, gentle carbon concentration gradient and small blade deformation. It will play more and more in the surface treatment of mechanical blades in the future. Important role.

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