Industrial preparation method of CMA material for regulating and controlling crystal morphology of raw material based on MgO

Abstract

The invention provides an industrial preparation method of a CMA material based on MgO regulation and control of raw material crystal morphology, which comprises the following steps: preparing aluminum oxide, a calcium oxide source and magnesium oxide into raw materials according to corresponding mass percent according to different application fields of the CMA material; mixing the prepared raw materials, and performing wet ball milling to obtain slurry; drying the slurry, crushing and screening to obtain powder; carrying out mechanical pressing on the powder to obtain a green body; and drying the green body, sintering in an air atmosphere, and cooling to obtain the CMA material. According to the industrial preparation method of the CMA material for regulating and controlling the crystal morphology of the raw material based on MgO provided by the invention, the crystal morphology of the CMA material is regulated and controlled by optimizing the addition amount of MgO in the raw material; the CMA material with the equiaxed crystal morphology used as a compact refractory material and the CMA material with the sheet-shaped or plate-shaped crystal morphology used as a porous refractory material of a heat insulation layer can be prepared, so that the CMA material can meet the application requirements of different industrial fields.

Description

Industrialized preparation method of CMA materials based on MgO-controlled crystal morphology of raw materials technical field The present invention relates to the technical field of refractory materials, particularly a kind of CMA material based on MgO regulating and controlling raw material crystal morphology Industrial production method of the material. Background technique The iron and steel industry is an important symbol that reflects the overall industrial development level of a country, and it is very important to guarantee the construction of major national projects. It is of great significance to design, improve the level of equipment manufacturing, promote energy conservation and emission reduction and technological upgrading in related application fields. With the continuous implementation of major national engineering construction projects, the research and development and production of high-quality clean steel and superalloy Production puts forward high...

AI Technical Summary

Problems solved by technology

This flaky or plate-like feature makes its flaky or plate-like anisotropic growth lead to large porosity, which is more suitable as a raw material for heat insulation refractory materials, but it cannot be used as a raw material for dense refractory materials

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