Indefinite chilled cast iron roll is a roll between chilled cast iron and gray cast iron with a carbon content of 2.5-3.5% and a silicon content of 0.7-1.6%. The structure of the roll body changes uniformly from the outside to the inside. The cold hard structure gradually transitions to the gray structure without significant change on the cold hard layer. The matrix structure of the working layer has uniformly distributed graphite. The content increases from the surface of the roll body to the depth with the decreased hardness. Therefore, there is no obvious boundary between the working layer of the roll body and the core. High NiCr indefinite chilled cast iron roll refers to the roll which contains alloy elements of high chromium, nickel, and molybdenum. The roll is manufactured by the centrifugal composite casting process. The existence of graphite in the base structure makes it has excellent thermal crack resistance and is widely used as finishing roll for wide, medium and thick plate rolling mill and strip rolling mill.
High NiCr Indefinite Chilled Composite Spin-Cast Roll
This type of indefinite chilled cast iron roll is made of high chromium, nickel and molybdenum alloy elements. It has a double chemical. Through alloying in ordinary high nickel-chromium molten steel, the strong carbide-forming elements like niobium, tungsten, and vanadium are added at a certain ratio, and the type of carbides is changed to form high-hardness and finely mixed carbides while changing the density of precipitated particles. The outside has high tensile strength and the inside is a lower one. The hardness drop is lower, so it has high wear resistance. It is usually used for the finishing mill to roll the final material, the angles, bars, flats and so on. TINVO is a professional manufacturer for the chilled cast iron roll with quality standards of ISO, GB, ASTM, DIN, JIS.
Application
bar & wire rod mill, hot strip mill, cold strip mill, PC mill, section mill, plate rolling mill and nonferrous mill etc.
Alloy Indefinite Chilled Cast Iron Roll
Indefinite chilled cast iron rolls also called ICCI Rolls are in the composition of alloys with cast iron. It is a roll between chilled cast iron roll and grey cast iron with a carbon content of 2.5-3.5% and a silicon content of 0.7-1.6%. The structure of the roller body changes uniformly in the outward direction and the chilled structure gradually transitions to the gray mouth structure, but the chill layer does not change significantly. The main application of the cast iron rolls are is work roll of bar & wire rod mill, hot strip mill, cold strip mill, PC mill, section mill, plate rolling mill, non-ferrous mill, etc. TINVO indefinite chilled cast iron rolls have standards of ISO, GB, ASTM, DIN, JIS.
The alloy indefinite chilled cast iron roll is a kind of material between cold hardened cast iron and gray cast iron. The working layer of an indefinite chilled cast iron roll body has an even distribution of graphite in the matrix structure. The graphite content increases from the surface of the roll body to the core, the hardness decreases as the depth increases, there is no obvious boundary between the working layer of the roll and the core. Infinite chilled cast iron rolls contain high chromium, nickel and molybdenum alloy elements when they contain high chromium, nickel and molybdenum alloy elements. They are produced by full flushing (overflow method) or centrifugal composite casting process. There are more carbides in the matrix structure of the working layer of the high nickel-chromium infinite chilled cast iron roll body, thus, it has higher wear resistance, and the existence of graphite in the matrix structure makes it have good thermal crack resistance.
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