Preparation process of wear-resistant elbow material

Abstract

The invention discloses a wear-resistant elbow material. The formula of the wear-resistant elbow material comprises the following components: 3.3 to 3.7 percent of carbon, 2.3 to 2.8 percent of silicon, 0.5 to 1.0 percent of manganese, 0.4 to 1.0 percent of chromium, 0.03 to 0.06 percent of phosphorus, 0.01 to 0.02 percent of sulfur, 0.03 to 0.05 percent of magnesium, 0.01 to 0.02 percent of cerium, 0.3 to 1.0 percent of vanadium, 0.3 to 1.0 percent of neodymium, 4 to 6 percent of aluminum oxide, 3 to 6 percent of titanium diboride and the balance of iron. The invention further discloses a preparation process of the wear-resistant elbow material. The preparation process comprises the following steps of quantitative weighing, raw material smelting, spheroidizing treatment and inoculation treatment, casting molding, quenching, wear-resistant hard phase overlaying and dip-coating. The wear-resistant elbow material has the beneficial effects that the prepared wear-resistant elbow material is greatly improved, the wear resistance of an elbow is improved through a wear-resistant hard phase formed by mixing aluminum oxide and titanium diboride, and the inner wall of the elbow is dip-coated with a layer of Teflon to reduce material adhesion, so that the wear-resistant elbow is not only suitable for conveying hard substances, but also suitable for conveying soft materials.

Description

technical field [0001] The invention relates to the technical field of preparation of wear-resistant elbow materials, in particular to a preparation process of wear-resistant elbow materials. Background technique [0002] Pipeline transportation, with its advantages of low investment, strong adaptability to terrain, small land occupation, environmental friendliness (continuous airtight operation), reliable technology, high degree of automation, and low operating cost, has become a transportation industry that countries all over the world are competing to develop. Especially for the transportation of liquid medium and powder containing solid particles, a large number of wear-resistant pipelines are required, such as pipelines for coal-water slurry in the coal industry, mine coal powder and coal-water mixture in the field of heavy medium coal preparation; thermal power generation Fly ash transportation and slag discharge pipelines in the industry; ore powder, concentrate, and ...

AI Technical Summary

Problems solved by technology

Especially for the transportation of liquid medium and powder containing solid particles, a large number of wear-resistant pipelines are required, such as pipelines for coal-water slurry in the coal industry, mine coal powder and coal-water mixture in the field of heavy medium coal preparation; thermal power generation Fly ash transportation and slag discharge pipelines in the industry; ore powder, concentrate, and tailings transportation pipelines in the metallurgical and mining industry; blast furnace coal injection and slag transportation pipelines for ironmaking in the iron and steel industry, ferroalloy pipelines for steelmaking, etc.; rotary kiln in the cement industry Raw slurry transportation and pulverized coal transportation pipelines of wet process production lines, finished cement pneumatic transportation and loading and unloading, concrete transportation pipelines; coal powder, silicon powder and other raw material transportation pipelines in chemical plants; traditional pipeline connection elbows have poor wear resistance and are It is easy to adhere to the material when the material is transported; for this reason, the present invention proposes a preparation process for a wear-resistant elbow material