A wear-resistant tool material based on composite rolling and its preparation process

Abstract

The invention relates to a wear-resisting cutter material based on composite rolling and a preparation process thereof. The wear-resisting cutter material is formed by sequentially conducting rollingon three layers of monometallic materials according to a descending layering order based on hardness; the preparation process includes the steps of material selection, surface pre-treatment, billet assembly, billet welding, vacuumizing, rolling of composite billets and intensified hot treatment; during the material selection, the three layers of the monometallic materials different in hardness areadopted as raw materials; during the billet assembly, billets are synthesized according to the descending layering order based on the hardness of the three layers of the monometallic materials to obtain a metal-layer composite material. The wear-resisting cutter material based on composite rolling can meet the requirements of high strength, high tenacity, high wear-resisting performance and the like at the same time, and has the function of automatically polishing blades; the composite rolling process can reduce the production cost to the maximum limit, and meanwhile increase the utilizationrate of the metal materials.

Description

technical field [0001] The invention belongs to the technical field of composite material preparation, and in particular relates to a wear-resistant tool material based on composite rolling and a preparation process thereof. Background technique [0002] At present, the key parts of agricultural machinery are inseparable from knives, such as plowshares commonly used in farming, lawn mowers for weeding, harvesters for autumn harvest, etc., but agricultural knives are easily damaged during long-term use, making agricultural machinery The work efficiency is reduced, which in turn affects the development of the entire agriculture. [0003] At present, agricultural knives at home and abroad are still mainly made of single metal materials. Domestic knives generally have the problems of low hardness, low wear resistance, and short service life. They are often completely unable to continue to be used due to severe wear; During use, because there are many sundries such as stones and...

AI Technical Summary

Problems solved by technology

[0005] The traditional process for preparing composite materials is generally composed of powder preparation, forming, sintering, etc. These processes not only have very strict requirements on production equipment and the environment, but also have high production costs, low efficiency, and serious pollution problems