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Steel for bucket teeth and preparation method thereof

A bucket tooth and steel core technology, applied in the field of metallurgy, can solve problems such as affecting the working efficiency of excavators

Pending Publication Date: 2019-10-18
SHANDONG IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Bucket teeth are the key components of excavators, which significantly affect the working efficiency of excavators

Method used

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  • Steel for bucket teeth and preparation method thereof
  • Steel for bucket teeth and preparation method thereof
  • Steel for bucket teeth and preparation method thereof

Examples

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Embodiment Construction

[0050] The present invention will be further described below through specific examples, but not limited thereto.

[0051] The following examples are used to illustrate the present invention, but the protection scope of the present invention is not limited to the following examples.

[0052] The production process is: batching→electric arc furnace smelting→LF refining furnace refining→VD vacuum refining furnace refining→round billet continuous casting (Φ500mm)→continuous rolling mill rolling.

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Abstract

The invention relates to the technical field of metallurgy, in particular to steel for bucket teeth and a preparation method thereof. The steel comprises the following chemical components in percentage by mass: 0.30-0.34% of C, 1.30-1.50% of Si, 0.80-1.10% of Mn, equal to or less than 0.025% of P, equal to or less than 0.025% of S, 1.50-1.70% of Cr, 0.06-0.08% of Ti, 0.10-0.18% of Mo, 0.020-0.050%of Al, equal to or less than 1.5*10% of H, equal to or less than 80*10% of N, equal to or less than 1.5*10% of T.O and the balance of Fe and unavoidable impurities. The preparation method comprises the following steps: 1, electric furnace smelting; 2, refining furnace smelting; 3, VD furnace vacuum smelting; 4, continuous casting; and 5, rolling. The steel is excellent in macrostructure, high inpurity, low in gas content, fine and small in crystal particle, compact in texture, low in banded structure grade, and high in mechanical property and improves the technological processability and thermal treatment of a material.

Description

technical field [0001] The invention relates to the technical field of metallurgy, belongs to alloy steels, and relates to steel for bucket teeth and a preparation method thereof. Background technique [0002] Bucket teeth are the key components of excavators, which significantly affect the working efficiency of excavators. The bucket teeth are in direct contact with ore, sand, rock and other materials. When in contact with materials, it not only bears the impact action, but also bears the bending moment action. During the service process, the tip of the bucket tooth is subjected to strong impact and sliding abrasive wear, and various furrows and deformations often appear on the surface of the tip, resulting in surface wear or shedding. Therefore, it is required that the bucket teeth must have sufficient wear resistance, strength and toughness in order to be durable. Contents of the invention [0003] The object of the present invention is to provide a steel for bucket ...

Claims

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Application Information

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IPC IPC(8): C22C38/28C22C38/02C22C38/04C22C38/22C22C38/06C22C33/06
CPCC22C33/06C22C38/02C22C38/04C22C38/06C22C38/22C22C38/28
Inventor 郑桂芸欧阳峥容韩蕾蕾王宗斌卢栋徐峰李金浩
Owner SHANDONG IRON & STEEL CO LTD
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