In-situ synthetic Mo2FeB2 particle reinforced iron-based composite lining plate material and preparation method thereof

Abstract

The invention discloses an in-situ synthetic Mo2FeB2 particle reinforced iron-based composite lining plate material and a preparation method thereof. The composite lining plate material comprises thefollowing components in percentage by weight: 0.35-0.55% of C, 0.2-0.5% of Cr, 0.2-0.4% of Mn, 0.2-0.3% of Si, 3.7-15% of FeMo60, 2.5-10% of FeB, no more than 0.025% of S, no more than 0.035% of P andthe balance of Fe. By adoption of the preparation method disclosed by the invention, the hardness and the abrasive resistance of the composite lining plate material can be greatly improved, and the impact toughness of the composite lining plate material can be improved; besides, the technology for preparing the composite lining plate material is simple and feasible, the production efficiency is high, both the energy conservation and the emission reduction are achieved, and the comprehensive mechanical performance is relatively high; the performance requirements of high-performance lining plates for ball mills can be met; and the application prospects in the fields of petroleum, cement, mines and the like are broad.

Description

technical field [0001] The invention relates to the field of metal matrix composite materials, especially an in-situ synthesis Mo 2 FeB 2 Particle-reinforced iron-based composite liner material and its preparation method. Background technique [0002] Ball mills are widely used in various industries such as cement and mining, and the mill liners, which are easy to wear, are in great demand. According to the "2012-2015 China Ball Mill Liner Industry Development and Planning Research Report" released by Viewpoint Industry Research, Chapter 2 "Research on the Development of China Ball Mill Liner Industry" Section 3 "China Ball Mill Liner Industry Development Status" Article 1 " The statistics of "Industrial Scale and Growth" show that the demand for wear-resistant linings in my country in 2012 was 95,000 to 100,000 tons, and it is increasing at an annual rate of more than 10%. It is estimated that by 2017, the market demand will reach 160,000 tons. [0003] Under the current ...

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Problems solved by technology

However, these methods have obvious shortcomings: the content of the reinforcing phase in the stirred casting method is limited, and the prepared composite material is prone to pores, and at the same time, the deposition and partial agglomeration of the reinforcing phase particles will occur; the squeeze casting method is not suitable for large The adaptability of the parts is not high; the spray molding method pollutes the environment and causes great damage to the operator's body; the powder metallurgy method is complex in process, high in cost and difficult to sinter and compact

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