High Chromium Casting For Mill Linings , Balls And Segments

High Chromium Casting Castings And Forgings For Mill Linings, Balls And Segments

1. Introduction of high chromium cast iron Castings And Forgings

High chromium cast iron (chromium > 12%) is an excellent wear resistant material. In the study of high chromium cast iron, generally concentrated on Cr15, Cr20 and other high chromium cast iron. This paper analyzes the influence of ultra high chromium cast iron (chromium content > 20%), an important component of high chromium cast iron, on the changing properties of the studied microstructure with the increase of Cr content and the addition of various alloying elements.

2. High Chromium Cast Iron Castings And Forgings Applicable products

High chromium cast iron (CR14-30%) has the best wear resistance and is widely used, such as small and medium-sized mill linings, balls and segments, small crusher hammers and plate hammers, vertical mill rollers and discs, etc. After THE roller press is installed IN front of the large mill, the high chromium cast iron can enhance its advantages and avoid its disadvantages, and give full play to its excellent wear resistance. The service life of the lining board can reach more than 8 years.

The hardness and toughness of low chromium cast iron (CR1.5-3%) are much lower than that of high chromium cast iron. It is mainly used in ball, section and fine grinding bin lining board. The advantage is low production cost, the disadvantage is narrow application range, general comprehensive performance and wear resistance index. Medium chromium cast iron (CR8-14%) is only used for casting ball, reduce chromium content, can reduce production costs, can also be full of football breakage rate indicators, the market is still called high chromium ball.

3.Different types of high chromium cast iron each component content is different:

4. Anti-wear performance and application of high chromium cast iron

The wear resistance of materials not only depends on the microstructure and mechanical properties of materials, but also has a great relationship with wear conditions. The same is true for high chromium cast iron, for the same composition, structure and mechanical properties of high chromium cast iron in different wear systems will show great differences in wear resistance.

The variation of the above test results is influenced by the wear damage mechanism (two-body wear is dominated by microcutting, while three-body wear is dominated by the joint effect of microcutting and microplastic fatigue), the relative hardness of abrasive and carbide, the volume fraction of carbide, and the mechanical properties of matrix.

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Mill Linings High Chromium Casting

Balls High Chromium Casting

Segments High Chromium Casting

High Chromium Casting For Mill Linings , Balls And Segments Images