Toughening processing method of hard phase Fe2B in iron boron wear-resistant alloy

Abstract

The invention relates to the ferroboron wearproof cast alloy field and discloses a method for toughening a hard phase Fe2B in the ferroboron cast wearproof alloy. The method comprises the following steps that: firstly, the ingredients of the ferroboron cast wearproof alloy are determined and comprises scrap steel, silicoferrite, ferromanganese and ferroboron; based on the total weight of the ingredients of the ferroboron cast wearproof alloy, ferrochromium, ferromolybdenum and the ingredients of the ferroboron cast wearproof alloy are respectively calculated and weighed according to 0.5 to 10 percent of Cr element and 0 to 4.0 percent of Mo element; then the ferroboron is taken out for standby; the other ingredients of the ferroboron cast wearproof alloy are added into a furnace for smelting in turn; after the ingredients are melted down, aluminum wire which accounts for 0.01 percent of the molten iron weight is adopted for deoxidation; the ferrochromium and ferromolybdenum are addedinto the furnace and melted down; finally, a ferroboron block is added into the furnace and melted down; after the molten iron is melted down and kept stand, slag are removed and the mixed materials are molded, thereby completing the toughening.

Description

technical field [0001] The invention relates to the field of iron-boron wear-resistant cast alloys, in particular to a hard phase Fe in iron-boron cast wear-resistant alloys 2 Toughening treatment method of B, hard phase Fe 2 The cast iron-boron wear-resistant alloy after B toughening is suitable for mining, metallurgy, coal, electric power and other industries, and is used to prepare anti-wear parts such as ball mill liners and grinding balls. Background technique [0002] Wear and tear is common in many industrial sectors such as metallurgy, mining, machinery, electric power, etc., and has become an important cause of equipment component failure or material damage, and is also one of the reasons that cause the most economic losses. In order to improve the toughness and wear resistance of iron-boron cast wear-resistant alloys, all current research work mainly focuses on Fe 2 B phase morphology improvement and matrix performance improvement. During the wear process of iro...

AI Technical Summary

Problems solved by technology

During the wear process of iron-boron cast wear-resistant alloy, especially under the condition of impact stress, due to the hard phase Fe in the structure 2 B is brittle, and there is obvious peeling and cracking during the wear process, which cannot effectively resist wear, so that the wear performance of the material is significantly reduced

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