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High manganese steel and high chromium steel which is more wear resistant

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High manganese steel lining plate, hammer head, sieve bar and jaw plate are the most widely used steel castings in cement factories at present.

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High manganese steel has good plasticity and impact toughness, under the impact of external force surface hardening layer, the surface layer has been hardened by wear, the emergence of a new surface layer, and continue to be processed hardening.Therefore, high manganese steel castings have high surface wear resistance, the inner part still retains the original mechanical properties.

Because high manganese steel castings have the above characteristics, so there is no wear - resistant material in the world can completely replace high manganese steel.The high hardness martensite matrix in the high chromium steel castings strongly supports the carbide particles and prevents the carbide from falling off from the worn surface during the working process, thus ensuring the high wear resistance of the material.

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Therefore, high chromium steel castings as high wear resistant materials have been effectively used in crushing, grinding, material transport and other mechanical and metallurgical equipment.Especially in the abrasive wear and impact wear parts (such as: crusher drum, bin lining board, blast furnace bell, hopper, coal chute lining board, coal mill roller sleeve, roll, slurry pump flow components, etc.) more widely used.

The existence of such carbides is the main reason for the high wear resistance of high chromium steel castings.In general, the leite in cast iron is continuous network, while the eutectic carbides with high chromium content are broken block and strip.It is equivalent to embedding high hardness particles into the matrix.Therefore, not only good wear resistance, but also greatly reduced the embrittlement of high hardness phase, relatively good toughness.


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