Martensite series wear-resistant steel and preparation method thereof

A martensitic and wear-resistant steel technology, applied in the field of wear-resistant steel, can solve the problems of uneven quenching structure, low hardenability and hardenability, etc., achieve uniformity of excellent structure and performance, and improve hardenability. and hardenability, the effect of reducing requirements

Active Publication Date: 2013-11-20
CENT IRON & STEEL RES INST
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Problems solved by technology

Contents of the invention
[0006] The purpose of the present invention is to provide a martensitic wear-resistant steel and its preparation method, which overcomes the problems of low hardenability and hardenability, and difficult uniform quenching structure.

Method used

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  • Martensite series wear-resistant steel and preparation method thereof
  • Martensite series wear-resistant steel and preparation method thereof
  • Martensite series wear-resistant steel and preparation method thereof

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Embodiment approach

[0050] 1. Hot continuous rolling plate: the steel of the present invention is obtained by vacuum induction smelting in a laboratory to obtain 150 kg of ingot air-cooled, and a total of 20 furnaces of steel with different components. After high-temperature forging, the final 60mmx100mmx300mm square billet is heated again to 1200°C, rolled by the rough rolling mill for 7 passes, hot-rolled to a thickness of 25mm, and the initial rolling temperature is 1150 O C (there is a cooling from heating to rough rolling). Afterwards, 7 passes of finish rolling are carried out by the heat-connecting unit to a thickness of 12mm, and the final rolling temperature is 850 O C, air cooling after final rolling. Carry out the mensuration of mechanical property, toughness and wear resistance (sliding wear and impact wear) of steel of the present invention afterward.

[0051] Table 1 shows the chemical composition of part of the martensitic test steel that simulates hot continuous rolling; Table 2...

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Abstract

The invention relates to martensite series wear-resistant steel and a preparation method thereof, belonging to the technical field of wear-resistant steel. The steel comprises the following chemical components: 0.05-0.51wt% of C, 2.0-10wt% of Mn, 0-1.5wt% of Al, 0-1.5wt% of Si, 0-1.5wt% of Cr, 0-1.5wt% of Cu, 0-1.5wt% of Ni and the balance of Fe and inevitable impurities, wherein the Mn/C ratio is not less than 9. Based on this, the following one or more composite elements can be optionally added: 0.02-0.50wt% of Mo, 0.02-0.50wt% of V, 0.02-0.50wt% of Nb, 0.01-0.5wt% of Ti, 0.02-0.50wt% of B and 0.02-0.50wt% of RE. The wear-resistant steel provided by the invention is easy to produce, low in cost and high in performance. The invention is applicable to the technical field of wear-resistant materials for mines, energy, transportation, agricultural machinery, engineering machinery and other industries.

Description

technical field [0001] The invention belongs to the technical field of wear-resistant steel, and in particular provides a martensitic series wear-resistant steel and a preparation method thereof, which is an economical martensitic series wear-resistant steel with easy production, low cost and high performance. It is suitable for the technical field of wear-resistant materials used in mining, energy, transportation, agricultural machinery, engineering machinery and other industries. Background technique [0002] Wear-resistant steel is an extremely important component of wear-resistant materials. It is widely used in mining machinery, coal mining and transportation, construction machinery, agricultural machinery, building materials, electric machinery, railway transportation and other departments. For example, steel balls, lining plates of ball mills, bucket teeth and buckets of excavators, rolling socket walls, tooth plates, hammer heads of various crushers, track shoes of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/58C22C38/38C22C38/16C22C38/06C22C38/04C22C38/08C21D8/02
Inventor 曹文全俞峰许达
Owner CENT IRON & STEEL RES INST
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