A kind of ultra-low wear ceramic ball and preparation method thereof

Abstract

The invention discloses an ultra-low wear ceramic ball and a preparation method thereof. The raw material for its manufacture is derived from natural bauxite, and its main chemical composition is Al2O3 with a content of 72-83%, and a SiO2 content with a content of 22-15%. , molding, and high-temperature firing to produce high-strength, high-density (3.25g / cm3), super-hardness (Mohs 8-9), ultra-low wear (≤.06g / kg·h) ceramic ball products. The present invention aims at simplifying the traditional process, removing wet stale, atomizing drying, crushing and other processes, obtaining "homogenized" ultra-fine powder, high-temperature firing to promote "solid-phase reaction", and avoiding the formation of "solid-melt" in low-temperature liquid phase. body", so that the main crystal phase "corundum-mullite" crystallization is fully developed. The ceramic ball manufactured by the invention greatly improves its cost performance and has a qualitative leap. It has wide application prospects in building ceramics, special ceramics, daily-use ceramics, refractory materials, pharmaceutical chemicals, non-metallic minerals and other industries.

Description

technical field [0001] The invention relates to the technical field of non-metallic grinding media, in particular to an ultra-low wear ceramic ball and a preparation method thereof. Background technique [0002] Traditionally produced ceramic balls have obvious defects and disadvantages in both product quality and production process. Compared with foreign products, there is a big gap in quality and technology. [0003] 1. The production of ceramic balls by the traditional ceramic technology method has complicated procedures, a large workshop area, a lot of equipment, low production capacity and high energy consumption. [0004] 2. The traditional ceramic technology can produce high-quality porcelain products, but it is not completely suitable for the production of ultra-low-wear ceramic balls, because ceramic balls are not porcelain, and the former is the "tool" in the latter's production process equipment-grinding media, so The ultimate goal pursued is ultra-low wear, and ...

AI Technical Summary

Problems solved by technology

[0003] 1. The production of ceramic balls by the traditional ceramic process method is complicated, the plant occupies a large area, there are many equipments, the production capacity is low, and the energy consumption is high.

[0004] 2. The traditional ceramic technology can produce high-quality porcelain products, but it is not completely suitable for the production of ultra-low-wear ceramic balls, because ceramic balls are not porcelain, and the former is the "tool" in the latter's production process equipment-grinding media, so The ultimate goal pursued is ultra-low wear, and the ground material cannot have a qualitative impact on the product

Therefore, the traditional ceramic process method can only be used for reference in the production process of ceramic balls, and cannot be fully applied.