A kind of high-performance multi-element alloy wear-resistant ball and its preparation process and heat treatment method

Abstract

The invention discloses a high-performance multi-alloy wear-resistant ball, and a preparation process and a thermal treatment method thereof. The high-performance multi-alloy wear-resistant ball consists of the following components in percentage by weight: 2.0 to 2.6% of C, less than or equal to 1.0% of Si, 1.6 to 2.0% of Mn, more than or equal to 27% of Cr, 0.05 to 0.15% of Re, less than or equal to 0.05% of P, less than or equal to 0.05% of S, less than or equal to 0.3% of Mo, 0.1 to 0.3% of Ni, 0.05 to 0.08% of Al and the balance of Fe. When the high-performance multi-alloy wear-resistant ball is prepared, a metal mold sand coating process is adopted for formation, the thickness of a sand coating layer is controlled to be 1.5 mm to 3.5 mm, and the diameter of the wear-resistant ball is controlled to be phi 50 mm to phi 130 mm. According to the high-performance multi-alloy wear-resistant ball, and the preparation method and the thermal treatment method thereof, the high-performance multi-alloy wear-resistant ball obtained by adjusting the contents of C, Si, Mn, Cr, Re, P, S, Mo, Ni and Al elements, controlling the thickness of the sand coating layer in a preparation process and adjusting the thermal treatment method process in a thermal treatment process has high mechanical properties, strong impact toughness and small unit wear.

Description

Technical field [0001] The invention relates to the technical field of abrasive materials, in particular to a high-performance multi-element alloy wear-resistant ball and its preparation process and heat treatment method. Background technique [0002] Wear-resistant ball is a kind of pulverizing medium used in ball mills. It is used to pulverize materials in ball mills. It is widely used in metallurgical mines, cement building materials, thermal power generation, flue gas desulfurization, magnetic materials, chemicals, coal water slurry, pellets In industries such as ore, slag, ultra-fine powder, fly ash, calcium carbonate, quartz sand, etc., as the demand for ball mills is increasing, the consumption of wear-resistant balls is also increasing significantly, and its problems are becoming more and more obvious. For example, the wear-resistant ball is easy to wear, the impact toughness is weak, and the mechanical performance is poor, which needs to be solved urgently. Summary of t...

AI Technical Summary

Problems solved by technology

[0002] Wear-resistant ball is a kind of crushing medium used in ball mills to crush materials in ball mills. It is widely used in metallurgical mines, cement building materials, thermal power generation, flue gas desulfurization, magnetic materials, chemicals, coal water slurry, pellets Mining, slag, ultrafine powder, fly ash, calcium carbonate, quartz sand and other industries, with the increasing demand for ball mills, the consumption of wear-resistant balls is also increasing significantly, and the existing problems are becoming more and more obvious , such as wear-resistant balls are easy to wear, the impact toughness is weak, and the mechanical properties are poor, which needs to be solved urgently