Method for preparation of silicon nitride bonded silicon carbide refractory material by using silicon cutting waste mortar
A refractory material, silicon nitride technology, applied in the field of silicon cutting waste mortar recycling, can solve the unrevealed or proposed preparation of silicon nitride combined with silicon carbide refractory materials, etc., to improve market competitiveness, improve physical properties, reduce Effects on Energy Consumption and Costs
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[0027] The present invention will be described in detail below with reference to non-limiting specific embodiments.
[0028] The present invention provides a method for preparing low-cost silicon nitride bonded silicon carbide refractory using silicon cutting waste mortar, which includes the following steps:
[0029] (1) The following components and weight percentages are selected as raw materials:
[0030]
[0031] The silicon carbide powder has a particle size of 1 μm to 500 μm. Preferably, in the silicon carbide powder, the mass ratio of silicon carbide with a particle size of 1 μm to 50 μm to a silicon carbide with a particle size of 50 μm to 450 μm ranges from 1:7 to 7:1. .
[0032] (2) All the above raw materials are added with an appropriate amount of absolute ethanol for wet ball milling, wherein the mass ratio of raw materials to ball milling balls is in the range of 1:2 to 2:1; the mass ratio of raw materials to absolute ethanol is in the range of 1:2 to 2:1, ball milling t...
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