Magnetic tile manufacturing method

The main material points and the additive group of weight percentage are as follows. Ingredients: 8.7% ~ 9.0% of strontium oxide; 86% ~ 87% of iron oxide additives: 0.6% ~ 1.0% calcium carbonate, 0.6% ~ 1.0% of aluminum oxide, 0.4% ~ 0.8% Cr2O3, 0.3% ~ 0.6%, boric acid, 0.3% ~ 0.5% silica, 0.2% ~ 0.4% of the four oxidation three cobalt, 0.2% ~ 0.4% of the oxide lanthanum and 0.1% ~ 0.3% silicate fibers. The invention has the advantages of high residual magnetic induction at the same time, also has the intrinsic coercivity, can improve the mechanical strength of magnetic tile.

Requirements: a permanent ferrite magnetic tile, including ingredients and additives, its characteristic is the ingredients and additives of the components and weight percentage are as follows, ingredients: strontium oxide: 8.7% ~ 9.0%; iron oxide red: 86% ~ 87%; calcium carbonate additive: 0.6% ~ 1.0%; aluminum oxide: 0.6% ~ 1.0%; chromic oxide: 0.4% ~ 0.8%; boron acid: 0.3% to 0.6%; silica: 0.3% ~ 0.5%; four oxidation three cobalt: 0.2% ~ 0.4%; 3 oxidation 2 La: 0.2% ~ 0.4%; silicate fiber: 0.1% ~ 0.3%.