Thermal-knock resisting diamond spar-spinele refractory materials and its production

Abstract

A diamond spar-spinele refractory material with high-thermal shock resistance and its production are disclosed. The process is carried out by taking spinel grain and electric-melting diamond spar grain as aggregate, taking diamond spar powder, aluminum oxide powder, electric-melting magnesium powder and titanium pigment as substrates, taking industrial citrine as binder and sintering at 1000-1650 degree in industrial furnace and metallurgical kiln lining. It has excellent thermal stability and high-temperature resistance, better mechanical strength and alkali resistance and abrasion resistance. It can be used for various non-ferrous metal metallurgical kilns, cement rotary kiln, high-temperature tunnel kiln and glass kiln.

Description

technical field

[0001] The invention relates to a refractory material, in particular to a corundum-spinel refractory material with high thermal shock resistance and a preparation method thereof. Background technique

[0002] With the development of modern science and technology, metallurgical production, ceramics and building materials and kiln furniture have put forward higher requirements for the quality of high-temperature materials. While reducing their production costs, vigorously promote environmentally friendly and resource-saving materials.

[0003] Several main refractory raw materials in my country include bauxite-based raw materials, including fused corundum, spinel, and mullite; Magnesia chromium sand; non-oxide materials, including ferrosilicon nitride and silicon nitride. The comprehensive utilization of these raw materials to prepare new materials with excellent properties has aroused widespread concern. Adding Cr to magnesia spinel 2 o 3 It can promote sin...

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