Shock-resistant high-abrasion-resistant steel ball steel and preparation method thereof

An impact-resistant, steel ball technology, applied in the field of steel, can solve the problem that the impact toughness and wear resistance of wear-resistant steel balls cannot well meet user requirements, etc., to improve the uniformity of the rolled structure, improve the surface quality, cost low effect

Active Publication Date: 2015-02-25
SHANDONG IRON & STEEL CO LTD
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  • Abstract
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Problems solved by technology

[0006] The purpose of the present invention is mainly to provide a steel for impact-resistant and high-wear-resistant steel balls and its preparation method to improve the impact performance of steel balls in view of the fact that the impact toughness and wear resistance of the current wear-resistant steel balls cannot well meet the requirements of users And wear-resistant and other mechanical properties, to meet the needs of higher fields and users to reduce costs

Method used

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  • Shock-resistant high-abrasion-resistant steel ball steel and preparation method thereof
  • Shock-resistant high-abrasion-resistant steel ball steel and preparation method thereof

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Embodiment

[0023] The steel for impact-resistant and wear-resistant steel balls of the present invention preferably adopts UHP ultra-high-power electric furnace, LF refining outside furnace, VD vacuum degassing treatment, continuous casting casting slabs, and rolling into lumber processes to produce steel products. EXAMPLES The implementation process of the present invention is specifically illustrated by the production process of Φ125mm steel.

[0024] The production process is as follows:

[0025] (1) Rough refining

[0026] Smelted in an electric furnace, the ladle baking temperature is ≥800°C, the end point [C]≥0.40%, [P]≤0.012%, the content of residual elements meets the design requirements, and the tapping temperature of molten steel is 1630-1670°C;

[0027] (2) Refining

[0028] The refining furnace adopts LF furnace. After rough smelting, the molten steel enters the LF furnace for deoxidation and desulfurization. After the LF furnace, it enters the VD vacuum treatment. Before e...

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Abstract

The invention belongs to the steel technical field, and specifically, relates to shock-resistant high-abrasion-resistant steel ball steel and a preparation method thereof. The shock-resistant high-abrasion-resistant steel ball steel comprises the chemical components by the mass percentage: 0.64%-0.71% of C, 0.20%-0.40% of Si, 1.90%-2.05% of Mn, 0.90%-1.05% of Cr, 0.02%-0.05% of Al, not more than 0.02% of P, not more than 0.015% of S, not more than 15 ppm of O, not more than 1.5 ppm of H, and the balance Fe and inevitable impurities. The steel has the characteristics of good impact resistance, abrasion resistance, organization uniformity and the like, so that produced steel balls are not easy to break, are not easily out-of-round in the use process and have the advantages of high production efficiency, low cost and the like.

Description

technical field [0001] The invention belongs to the technical field of iron and steel. Specifically, the invention relates to a steel for impact-resistant and high wear-resistant steel balls and a preparation method thereof. Background technique [0002] In recent years, with the rapid development of industries such as mining, construction, metallurgy, chemical industry, ceramics, energy, power plants and cement at home and abroad, wear-resistant balls, as the main product in the wear-resistant industry, are in increasing market demand. The consumption occupies the first place in the wear-resistant industry, accounting for 55%. The working environment of wear-resistant balls is getting worse and worse. The wear resistance of ordinary steel balls can no longer meet the grinding requirements of various industries. [0003] On the one hand, the wear-resistant ball moves in a circular motion with the cylinder; on the other hand, the collision and grinding between the ball and th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/38C21C7/10C21C7/072B22D11/16C21D8/00
CPCB22D11/16C21C7/072C21C7/10C21D8/00C22C38/02C22C38/04C22C38/06C22C38/18
Inventor 裴建华孙卫华董杰翟正龙马兴云毕永杰顾大庆李法兴范黎明
Owner SHANDONG IRON & STEEL CO LTD
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