Aluminum oxide ceramic brazing alloy steel composite wear-resisting plate and preparation process thereof

Abstract

The invention discloses an aluminum oxide ceramic brazing alloy steel composite wear-resisting plate and a preparation process thereof, and relates to the technical field of composite wear-resisting plate manufacturing, the aluminum oxide ceramic brazing alloy steel composite wear-resisting plate comprises a cast steel base body, one side of the cast steel base body is provided with a plurality of grooves formed at intervals, and each groove is composed of a conical inner groove and a conical outer groove; and the section shapes of the conical outer groove and the conical inner groove are the same, the center lines of the conical outer groove and the conical inner groove are located on the same straight line, an aluminum oxide ceramic column is embedded in each groove, the aluminum oxide ceramic columns and the section cutting faces of the grooves are concentric, and the grooves and the aluminum oxide ceramic columns at the corresponding positions are connected into a whole through brazing. By adopting a brazing process, the aluminum oxide ceramic and the alloy steel plate are prepared into the composite derivative, any working condition below 1000 DEG C can be resisted, the use range is greatly expanded, the use working condition of the traditional ceramic does not exceed 100 DEG C, and the method has milestone significance for popularization and improvement of wear resistance of the aluminum oxide ceramic in a medium-high temperature state.

Description

technical field [0001] The invention relates to the technical field of composite wear-resistant plates, in particular to an alumina ceramic brazing alloy steel composite wear-resistant plate. Background technique [0002] Alumina ceramics have good wear resistance, the theoretical wear resistance is 300 times that of manganese steel, and the Rockwell hardness reaches (HRA) > 82. Alumina ceramics is a new type of wear-resistant material recently developed, which is wear-resistant and corrosion-resistant It is widely used in material conveying equipment in steel industry, thermoelectricity, coal mine, cement, port, mine and other industries. It is an excellent substitute for traditional cast steel liner and alloy liner. [0003] In the process of use, there are also some shortcomings. For example: on the one hand, traditional alumina ceramics are fixed with glue, which can withstand high temperature and have poor impact performance, which is easy to cause falling off; on th...

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Problems solved by technology

[0003] In the process of use, there are also some shortcomings. For example: on the one hand, traditional alumina ceramics are fixed with glue, which can withstand high temperature and have poor impact performance, which is easy to cause shedding; on the other hand, alumina itself has poor impact toughness and is easy to break due to impact. fail

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