Chrome Brick |Chrome Brick |Chrome Brick

Chrome brick is a kind of refractory product made from Chrome ore with content of Cr2O3 ≥ 30%. In order to improve its high temperature performance, it usually adds more than 10% of magnesia.

Chrome brick is neutral refractory brick with very weak effect to acidic and basic refractories at high temperatures. The load softening temperature and thermal shock resistance of Chrome Brick are lower than that of magnesia-chrome brick. Chrome Brick is mainly used for high temperature acidic and alkaline refractory barrier layer, but also for non-ferrous smelting furnace lining. But Chrome Brick is not suitable used for direct contact with the molten iron and at frequently changeable temperatures.

Chrome brick

High chrome bricks are mainly applied in the key parts of the furnaces in coal chemical industry, chemical industry, alkali-free glass fiber and garbage incinerator, etc. Chromium corundum bricks are mainly used for the lining of carbon black furnace and copper smelting furnace, Glass furnace molten bath, tapping platform of rolling mill furnace. Chrome corundum also can be used as upper structure and burner bricks for insulating fiber glass furnace.
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Bulk Refractories | Bulk Refractories |Bulk Refractories

Bulk refractory is monolithic refractory, which is mixtures of refractory aggregate and powder, binder and additive mixture. Bulk refractory is for thermal lining, without firing step, direct use. Compared with firebrick, bulk refractory has simple process (no firing step), less energy conservation, low cost, ease of mechanization construction. Bulk refractories even have better performance in thermal equipment than some of refractory bricks.

Fire Clay, Castables, Ramming Mixes

Bulk refractory

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Low Porosity Clay Brick |Low Porosity Clay Brick |Low Porosity Clay Brick

Low porosity clay bricks are made of high quality calcined flint. With the features of high strength, good refractoriness, dense structure, low porosity, excellent thermal shock resistance, no stripping, Low porosity clay bricks are widely used in hot blast stove and glass furnace regenerator.

Low porosity clay

The chemical composition of fire clays are 23-34% Al2O3, 50-60% SiO2 and 6-27% loss on ignition together with various amounts of Fe2O3, CaO, MgO, K2O, Na2O and TiO2. Chemical analyses from two 19th-century sources, shown in table below, are somewhat lower in alumina although a more contemporary source quotes analyses that are closer.

Low porosity clay bricks take flint clinker as the main raw material with the apparent porosity of 17%. Fire clay bricks take refractory clay and flint clay clinker as the main raw material, containing 30% to 46% alumina with refractoriness 1580 ~ 1770 ℃. It is a weak acid refractory materials with good thermal shock resistance, good corrosion resistance to acidic slag. Low porosity clay bricks are widely used in steel, glass and chemical industries.

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High Alumina Brick | High Alumina Brick | High Alumina Brick

Description of High Alumina Brick:

High alumina bricks are of different shapes, which is widely applied for industrial kilns and furnaces in the field of metallurgy, machinery, chemical industry, electric power, building material, light industry, etc.

There are many kinds of high alumina bricks like blast alumina brick, casting port brick, etc. The main advantage: high intensity, strong resistance to corrosion, good thermal shock stability and performance.

High alumina bricks

 

There are also different refractoriness and melting point of high alumina brick. In fact, the melting point is the critical point temperature of liquid crystal turnning to solid state. Most of bricks is conposed of a lot of material, and its melting point is not constant, Liguid began to melt completely requires a gradual process. Over a wide range of temperature environment, Solid-liquid is present together, it can be explained bricks at a high temperature to soften and melt features, so, we use refractoriness to measure, which is the temperature reacheing a certain degree of softening.

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Magnesium Chrome Zircon Brick | Magnesium Chrome Zircon Brick

Magnesia chrome brick main component are magnesium oxide (MgO) and chromium oxide (Cr2O3) , main mineral component are periclase and spinel.

Magnesium chrome brick has high refractoriness, high temperature strength, resistance to alkaline slag erosion resistance, excellent thermal stability, also as some adaptability to acidic slag. The main raw material for manufacturing magnesium chromium brick are sintered magnesia and chromite.

Purity of magnesia raw materials need to be as high as possible, requires on chromite chemical composition: Cr2O3: 30 ~ 45%, CaO: ≤1.0 ~ 1.5%.

Magnesia chrome brick

The chrome corundum bricks made by Zhengzhou Jinshi Refractories Co., Ltd. use corundum and fused oxide chrome as the main raw material, together with the powder and other additives, and treated by mixing, molding, drying, firing at shuttle kiln.

Chrome corundum bricks are with features of wear-resistant, heat shock, acid and alkali erosion. High chromium brick (Cr2O3≥90%) is mainly used in coal chemical industry, chemical industry kiln, alkali glass fiber furnace, garbage incinerator and other key parts of the kiln; While chrome corundum brick is mainly used for carbon black furnace, copper smelting furnace lining, the glass furnace molten pool, rolling steel furnace slideway and tapping platform.

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Silicon Carbide Bricks | Silicon Carbide Bricks | Silicon Carbide Bricks

Silicon carbide bricks have the advantages of acid and alkali slag resistance, big strength, low thermal coefficient of expansion, superior heat-conducting performance and good thermal stability. Silicon carbide bricks are mainly used in the burning bearing plate, push plate, saggar of non-ferrous metal refining and industrial ceramics, matter plate of anncealer, inner lining and fire lighter of circulation fluidized bed boiler, inner lining of garbage incinerator, etc.

Silicon carbide bricks are mainly used in the cooling section of cement kiln.

Silicon carbide bricks 

Silicon carbide bricks can be Corundum silicon carbide bricks, Silicon carbide high alumina brick and Mullite silicon carbide bricks. They have Good wear resistance, thermal shock resistance, corrosion resistance and can be used for aluminum reduction cell linings, the molten aluminum tubes and ceramic kiln furniture, the lower part of medium-sized blast furnace body, furnace waist and bosh, aluminum refining furnace lining, zinc distillation tank lining.

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Corundum Mullite Light Brick | Corundum Mullite Light Brick

Raw material of Corundum Mullite Light Brick are fused corundum and mullite, which is processed by adding large amount of ablator, vibration, casting moulding and high temperature firing. With the features of thermal insulation and energy saving, big strength, low heat conductivity and kiln cost saving, etc. Corundum mullite light bricks are mainly used in inner lining of shuttle kilns for calcining refractories, industrial ceramic, domestic ceramics, bricks for high temperature zone of tunnel kiln and insulating bricks of high temperature kilns.

Corundum Mullite Light Brick

With the current development of the steel industry and pressure on resources, resulting in a competition is growing, while corundum mullite brick production resources decreased, the market needed more refined, more sophisticated processing technology, development of corundum mullite light bricks to adjust towards the direction of high-quality, improve the utilization of the steel industry and increasing the frequency of use and improve corundum mullite brick refractoriness are the most concerned thing for manufacturers for future development.

Jinshi Refractory hired domestic famous experts and professors as consultants to research products. Over years development, refractories products have increased in varieties, covering mid-end and high-end series. Our refractory products are of high quality winning much trust and praise of customers from South Korea, India, Qatar, Indonesia and other countries.

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