Acid Resistant Standard Low Density Mullite Brick

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Specifications

1.Al2O3 38-45
2.Excellent thermal stability
3.Excellent insulating performance

Brand Quality			JM23	JM26	JM28	JM30
Classification Temperature (°C)			1260	1430	1540	1650
Bulk Density (g/cm3)			0.55	0.78	0.88	1.03
Cold Crushing Strength (Mpa)			1.2	1.6	2.1	2.5
Modulus of Rupture (Mpa)			0.9	1.4	1.6	2.1
Reheating Linear Change (%) CT-30°CX 8H			1230°C -0.5	1400°C -0.5	1510°C -0.5	1620°C -0.9
Thermal Expansion1000°C(%)			0.5	0.7	0.8	0.9
Thermal conductivity(W/m.k)	400°C		0.14	0.27	0.32	0.41
	600°C		0.16	0.29	0.34	0.43
	800°C		0.18	0.31	0.36	0.44
	1000°C		0.20	0.33	0.38	0.45
Al2O3 (%)			37	58	67	73
Fe2O3 (%)			1.0	1.0	1.0	0.5
Tolerance		>250mm ±1.0mm <250mm ±0.5mm Corner edge damage: a+b+c< 30mm

Standard Low Density Mullite Brick

Q:What is acidproof brick?: Hao Ran acid tile brick structure compact, low water absorption rate, the pH of the medium can be any concentration, with excellent corrosion resistance. And the set pressure, wear resistance, anti permeability, easy cleaning, acid and alkali in one, with excellent performance is widely used in petroleum chemical industry, metallurgy, electric power, chemical, papermaking, pharmaceutical, chemical, food, dairy, juice, electroplating and the tower, tank, tank, tank anti-corrosion engineering, and work in the underground sewers the open ground and other places play an important role.

Q:Do you want to leave the seam on the acid proof brick? What is the width of the seam?: It is necessary to leave the seam when resisting the acid brick. Acid resistant bricks are corrosion resistant ceramic tiles, and all ceramic tiles have a certain expansion ratio, and there is a phenomenon of expansion and contraction.

Q:Cleaning metal surface rust stain, is it better to weld sulphuric acid or nitric acid?: Acid etching is a chemical cleaning process to remove metal oxide and other impurities from the acid aqueous solution. As the acid and corrosion are more economical and suitable for continuous operation, it is the most effective way to remove the oxide surface of metal surface of large tonnage products. Especially cleaning iron and steel products, such as billets, ingots, steel plates, steel strips, wires, pipes and so on. Can also be used for steel forgings, casting cleaning, rust removal

Q:How can acid proof cement be used?: After drying to curing acidification, the basic method is to brush the surface of 40% sulfuric acid, once every 4 hours, every time the crystal precipitation should be removed in the next coating, until no crystallization, acid treatment after use.

Q:Construction method of acid proof brick: Construction methodLining adhesive layer, mortar protection layer: lining carbon brick before, in the bottom board first put a layer of delta =3mm cement whole surface layer, in order to protect the lining layer and avoid mortar joint layer appear blind seam, curing at normal temperature after masonry.Positioning, layout and layout: according to the bottom of the groove size, first play the central cross line, then positioning, line, according to the line for typesetting, painting, cutting and numbering.Lining procedures: masonry procedures from low to high, the first base, the rear wall, the Yin angle, the facade to suppress the plane, Yang Kok plane cover the facade.Masonry method: the bottom and wall are all made by squeezing, kneading and extruding, and they are made by line by line, layer by layer, block by block.The prepared mortar evenly scraping on the three surfaces of carbon brick (i.e., on the back end, and then squeeze (side), rubber hammer) is dense, the ash seam and the combined layer clay full, squeeze out excess clay to eradicate. The surface shall be made of flat and vertical, rows and rows, and the seams between floors and layers shall be staggered.

Q:How much is one square meter of acidproof tile?: Acid proof brick is made of quartz, feldspar, clay as the main raw material, acid resistant materials by high temperature firing, with acid of high, low water absorption, is not easy to be oxidized at room temperature, is not easy to be medium pollution characteristics.

Q:Is acid proof brick alkali resistant?: Acid resistant brick is generally acidic or neutral, it itself will not react with acidic materials, but neutral materials can be divided into neutral partial acid, neutral partial alkali and absolutely neutral (such as silicon carbide, etc.).

Q:Is it necessary to use sulphate resisting cement in alkaline areas?: 1. acid can be applied in chemical industry, petroleum, metallurgy, machinery, textile, papermaking, sugar and other industrial equipment in construction engineering, the floor in the equipment foundation, acid corrosion and acid storage tank, chimney lining workshop, building waste and gaseous acid corrosion, can be prepared by acid resistant clay masonry brick acid and board; can be mixed with acid and coarse aggregate (gravel), fine aggregate (sand) acid and preparation of acid resistant concrete.2. can not be used by hydrofluoric acid, fluosilicate, 300 degrees above phosphoric acid and advanced fatty acids and oleic acid, palmitic acid, and alkaline salt erosion engineering. When used in the food industry, sodium fluoride in sodium fluosilicate should be tested to prove that it is not harmful to humans.

Q:Consult: water treatment room anticorrosive usable granite and acid resisting brick, these two kinds of material what?: RZG garnet is almost insoluble in acid insoluble in alkali, common for the diamond 12 face angle of 38 or four surface features can ensure that different crystal polyhedron particles than other material between ordinary circular or elliptical particles can produce voids more suitable, can play a better effect of filtration and antisepsis.

Q:Does the chimney have high acid resistance?: The chimney particles and gases, mostly coal tar products, material acidic, therefore, take good acid resistance, acid proof brick, Grouts also used potassium silicate clay acid is preferred. If it is an ordinary high alumina brick, it does not meet the requirements of acid resistance, and only the chimney lined with acid resistant bricks.

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