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Mg-Al-Cr composite spinel brick

Magnesium aluminum chromium composite spinel brick using high purity magnesia, magnesium aluminum pointed stone, chromium concentrate, magnesium aluminum chromium composite pointed stone as the main raw material

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Refractory materials for non-ferrous metals

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Product Introduction

Magnesium-aluminum-chromium composite spinel bricks are made of high-purity magnesia, magnesium-aluminum pointed stone, chromium concentrate and magnesium-aluminum-chromium composite pointed stone as the main raw materials, adding nano-toughening materials, and are made by precision batching, high-pressure molding and high-temperature sintering. The products have the characteristics of high temperature strength, wear resistance, erosion resistance and excellent thermal shock stability, and are mainly used in the reaction zone of zinc volatilization kilns.

Brand Index	HTMAC-A	HTMAC-B
MgO(%)≥	77	75
Cr₂O₃ (%)	3-5	5-7
Al₂O₃ (%)	7-10	5-8
The apparent porosity A · P(%)≤	17	18
Bulk density B · D(g/cm³)≥	2.95	2.95
Normal temperature compressive strength C · C · S(MPa)	55	50
0.2MPa load softening temperature R · U · L(To.6 ℃) ≥	1700	1650
Thermal shock resistance T · S · R(1100 ℃ water cooling times) ≥	10	8