Wear Resistant Casting Materials

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The main function of ball mill liner is to protect the ball mill main parts free from abrasion, the most important requirement for the material is the feature of good wear-resistance and high toughness. The

material high manganese steel with enough toughness, and it will become cold-hardening with some extent impact, that will make the material better on hardness and wear-resistance, so it is used as the

widely used material for liners.

High Manganess Casting Material Chemical Composition

Code Elem. C Mn Si Cr Mo P S

ZGMn13-1 1.0-1.45 11.0-14.0 0.30-1.0 - - ≤0.09 ≤0.04

ZGMn13-2 0.90-1.35 11.0-14.0 0.30-1.0 - - ≤0.09 ≤0.04

ZGMn13-3 0.9-1.35 11.0-14.0 0.30-0.8 - - ≤0.09 ≤0.04

ZGMn13-4 0.9-1.30 11.0-14.0 0.30-0.8 1.50-2.0 - ≤0.09 ≤0.04

ZGMn13-5 0.75-1.30 11.0-14.0 0.30-1.0 - 0.90-1.2 ≤0.09 ≤0.04

High Cr Cement Mill Liner Castings Introduction

High chromium cast iron BTMCR26 is a kind of abrasion resistant material with good performance and special attention. It has much higher wear resistance than alloy steel, and much higher toughness and strength than ordinary white cast iron. At the same time, it also has good resistance to high temperature and corrosion resistance, combined with convenient production, moderate cost, and is known as one of the most excellent abrasive wear resistant materials. The stepped lining board has higher lifting capacity, and the lifting height of the same layer sphere is uniform and uniform, so that the lining board surface wear uniformly and uniformly, and the lining plate is worn without changing the shape obviously. The stepped lining plate is widely used in the coarse grinding bin of the mill, and its thin end should be in accordance with the rotation direction of the mill.

High manganese steel is divided into 5 grades according to the national standard, the main difference is carbon content, which ranges from 0.75%-1.45%. High impact, low carbon content. The commonly used high manganese steel grades and its applicable scope is: ZGMn13-1 (C1.10% to 1.50%) for low impact, ZGMn13-2 (C1.00% to 1.40%) for common parts, ZGMn13-3 (C0.90% to 1.30%) for complex parts, ZGMn13-4 (C0.90% to 1.20%) for a high impact. The manganese content of the above 4 grades of steel is 11%-14%. Manganese content between 11.0%-14.0%, generally should not be less than 13%. There is no national standard for ultra high manganese steel, but manganese content should be greater than 18%.

The impact of high manganese steel mill corrugated liner is used to protect the barrel, the barrel from the grinding body and the material directly impact and friction, but also can use different forms of high manganese steel liner to adjust the grinding body movement, in order to enhance the grinding body of material crushing effect, help to improve the efficiency of grinding mill, increase production, reduce the consumption of metal.