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Common Roll varieties are cast steel roll, cast iron roll and forging roll three categories
Source:English website Release time:2020/7/3 10:18:34

           There are many kinds of rolls. There are cast steel rolls, cast iron rolls and forged rolls. There are also a few cemented carbide rolls in profile rolling mill. Forming method, casting roll and forging roll; casting roll is the type of roll produced by directly pouring the molten steel or molten iron into the mode of production. Casting roll can be divided into cast steel roll and cast iron roll according to material, and integral casting roll and composite casting roll according to manufacturing method. Forging rolls are classified by material as follows: Forging Alloy Steel Rolls; Forging semi-steel Rolls; forging semi-high Speed Steel Rolls; forging white cast iron rolls. The integral roll is relative to the composite roll. The outer layer and the center of the integral roll body and the roll neck are cast or forged from a single material, the structure and properties of the outer layer of the roll body and the roll neck are controlled and adjusted by casting or forging process and heat treatment process. Forging roll and static casting roll belong to integral roll. Integral roll is divided into integral casting and integral forging roll 2. Metallurgical composite casting roll mainly includes semi-flushing composite casting, overflow (full flushing) composite casting and centrifugal composite casting, in addition, there are some kinds of composite rolls made by such special compound methods as Continuous casting process for Cladding, spray deposition, HIP-Hot isostatic pressing and electro-slag welding. The combination roll is mainly the combination roll with insert sleeve. (3) according to the materials of manufacture:

Cast Steel Series Rolls, cast iron series rolls and forging series Rolls (4) common types of heat treatment for rolls: Stress Relief Annealing, isothermal spheroidizing annealing, diffusion annealing, normalizing, tempering, quenching and cryogenic treatment.

 


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