Preparing method of ultrahigh manganese multielement rare earth wear-resisting alloy steel liner plate

Abstract

The invention relates to a preparing method of an ultrahigh manganese multielement rare earth wear-resisting alloy steel liner plate. The liner plate comprises the following components in percent by mass: 0.9 to 1.4% of C, 16.0 to 19.0% of Mn, smaller than 1.0% of Si, 1.5 to 3.0% of Cr, 0.3 to 1.0% of Mo, 0.2 to 0.5% of V, 0.1 to 0.4% of Ti, smaller than 0.3% of CU, smaller than 0.035% of S, smaller than 0.05% of P, 0.2% of RE and the balance of steel. The preparing method of the liner plate comprises the following steps of: adding into a smelting furnace for smelting and casting the liner plate, placing the liner plate into a thermal processing furnace for normalizing, quenching and tempering; air cooling processing; tempering the air-cooled liner plate at low temperature; performing mechanical performance test, grinding and polishing. The preparing method has the beneficial effects that the alloy steel has the tenacity strength of common high manganese steel, substrate initial hardness is enhanced, the material is fast hardened by small energy impact in use, and achieves a excellent wear-resisting capability, the service life of the product is improved, productivity is improved, production cost is reduced, and resource waste is reduced.

Description

technical field [0001] The invention relates to a preparation method of an ultra-high manganese multi-element rare earth wear-resistant alloy steel liner. Background technique [0002] Used in metallurgical enterprises for crushing iron ore, molybdenum ore, tungsten-molybdenum ore, lead-zinc ore, copper ore, gold and silver ore and other ore crushing equipment, the use of wearable parts, such as: on various jaw crushers The jaw plate of the hammer crusher, the hammer head of the hammer crusher, the crushing wall of the cone crusher, the rolling mortar wall, the impact plate used in the fan mill, etc. [0003] As we all know, the jaw plates used in various jaw crushers and the hammer heads used in large hammer crushers are all made of manganese thirteen (ZGMn13-1) or manganese thirteen chromium two (ZGMn13-4). Material cast. The material is tough and hardens after impact, making it wear-resistant. However, the wear-resistant parts cast by these grades basically exist in a ...

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Problems solved by technology

It has caused a series of problems such as short service life of the product, time-consuming and laborious equipment replacement, waste of materials, etc.

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