What's the advantages about Refractory fireclay brick materials

Composed of mullite and sillimanite, the bricks are processed by sintering under high temperature, with features of strong strength, abrasion residence, low Fe2O3 content and strong carbon deposition resistance, available for middle and upper parts off furnace stack.

Refractory Clay brick as the main raw material, mud treatment, molding, drying and roasting. Minerals mainly kaolinite clay (Al2O3 · 2SiO2 · 2H2O), and 6% to 7% of the impurities (potassium, sodium, calcium, titanium, iron oxides). Clay brick firing process, mainly kaolinite dehydration decomposition process continue to generate mullite (3Al2O3 · 2SiO2) crystals. SiO2 and Al2O3 in the fireclay brick in the firing process with a low melting point eutectic forming impurity silicates surrounds mullite crystals.

Bricks from local materials, cheap, durable, as well as fire protection, thermal insulation, sound insulation, moisture absorption, etc., for use in a wide range of civil construction projects.refractories Scrap bricks can be made of concrete aggregate. To improve ordinary brick block small, self-important, the consumption of soil many shortcomings, forward lightweight, high strength, hollow, chunks of direction.

Clay brick production of raw materials

Clay is the oldest and most widely used China refractory material refractory brick manufacturing raw materials are clay minerals, natural refractory clays can be divided into hard clay and soft clay.
Manufacturing clay refractory brick for sale is clay mineral raw materials. Natural fire clay can be divided into hard clay and soft clay. In refractory manufacturing process, the former majority clinker used after calcination; latter adding water, plastic, easy sintering, and more as the binding agent. China Shandong and other places flint (hard) and Suzhou clay (soft) are world-renowned high-quality refractory clay. Clay minerals are kaolinite (Al2O3 · 2SiO2 · 2H2O), dickite (same composition and kaolinite, but different in lattice constant), montmorillonite (Al2O3 · 4SiO2 · 6H2O), and mica.

refractory company Henan Xinmi Changxing Refractory Material Co., Ltd.'s product portfolio covers shaped products such as refractory materials,refractory brick, refractory castable,refractory nozzle, ceramic fiber, slide gate, etc;