What profit to have with brick of heat preservation of phosphoric acid macerate?

    The of check of appearance of classics of heat preservation brick after giving pit, manage changes function certificate of proof, with 200 ℃ roast 2h, the macerate in the phosphoric acid that makes up beforehand is entered in hot state transfer to a lower level. In macerate process, the open pore infiltration of brick of phosphoric acid edge, with the brick medium SiO2, Al2O3 reacts, make phosphatic compound, fill up at air hole in, reduced bricky porosity consequently, increased compression strength. Test result makes clear, 20% above rise before intensity of compression of brick of the heat preservation after phosphoric acid macerate compares macerate, porosity is reduced 5% the left and right sides. In process of phosphoric acid macerate, compound has generated phosphate to fight alkaline aggressivity admirably can, raised heat preservation brick consequentlyfight alkaline erode ability. Fight alkaline erode an experiment to make clear, classics of heat preservation brick is fought alkaline intensity of the compression after eroding drops 30% above; Below similar requirement, heat preservation of phosphoric acid macerateThe brick is alkaline intensity of the compression after eroding drops 15% the left and right sides.