Rongsheng Refractory Factory

Category: Products

  • Low Porosity Clay Bricks

    Fire Clay Brick Applications

    Fireclay bricks are often used in the Metallurgy, building materials, chemical industry, petroleum, machinery manufacturing, silicate, power and other industries.

    Shape Brick Material Alumina Cement
    Al2O3 Content (%) 30% Refractoriness(SK) 32
    Cold Crushing Strength (MPa) 25 Bulk Density(g/m3) 2.05
    Porosity 2.10-2.15 Thermal Expansion At 1000°C (%) 0.6
    Size Customized  

    Fire Clay Brick Physical & Chemical Indicators

    Fire Clay Brick SK-32
    Item Standard
    AI2O3(%) 30
    Fe2O3 (%) 3
    Refractoriness (SK) 32
    Refractoriness under load, 0.2MPa, Ta, ((°C) 1300
    Porosity (%) 22-26
    Bulk density (g/cm³) 2.05
    Cold crushing strength (MPa) 25
    Thermal expansion at 1000°C (%) 0.6
    Fire Clay Brick SK-34  
    Item Standard
    AI2O3(%) 38
    Fe2O3 (%) 2.5
    Refractoriness (SK) 34
    Refractoriness under load, 0.2MPa, Ta, ((°C) 1350
    Porosity (% 19-23
    Bulk density (g/cm³) 2.10-2.15
    Cold crushing strength (MPa) 25
    Thermal expansion at 1000°C (%) 0.6
    Fire Clay Brick SK-36  
    Item Standard
    AI2O3(%) 50
    Fe2O3 (%) 2
    Refractoriness (SK) 36
    Refractoriness under load, 0.2MPa, Ta, ((°C) 1450
    Porosity (% 20-24
    Bulk density (g/cm³) 2.30-2.40
    Cold crushing strength (MPa) 45
    Thermal expansion at 1000°C (%) 0.3

    Fire Clay Brick of Furnace Photos for Different Type

    customized fireclay brick low porosity 2

    Fire Clay Brick of High Temperature Furnace Packaging & Shipping

    Heavy dense fire clay bricks are packed on wooden pallet with papers in each layer and PP film wrapped outside of the whole pallet.

    customized fireclay brick low porosity 3

    Fire Clay Brick Manufacturer from China Refractory Material Factory – RongSheng

    Zhengzhou Rongsheng Refractory Material Co., Ltd. is located in the hinterland of Central Plains, at the foot of Songshan Mountain, and adjacent to Zhengshao Highway, Longhai and Jingguang railways. The convenient transportation, abundant resources and high quality minerals provide favorable conditions for the production of refractory materials.

    Established in the early nineties of twenty century, with continuous innovation and development, now it is a comprehensive enterprise in refractory material sindutry, covering metallurgy, building materials, electric power, chemical industry etc.

    Our main products: refractory material for industrial furnaces, such as high-alumina brick, refractory fire clay brick, silicon brick, high-strength diatomite brick, light weight insulation brick, low iron mullite brick, etc;anti-stripping alumina brick,alkali proof brick,phosphate brick for cement industry; For the  industrial furnace and power boiler, we can provide various series of abrasive bricks,corundum brick, mullite brick, wear resistant castable, corundum castable , high strength low cement castable, impervious material,plastick refractory, etc. Our products are popular in the whole country and have been exported to India, Iran.etc.

    RS refractory company adhering to the ” integrity, innovation, hard work” and business philosophy,the ” people-oriented” as the cornerstone of enterprise development, to ” the pursuit of excellence” as the core values of the enterprise, will create ” Rongsheng Brand” as a corporate strategic objectives.and product types rich scientific management processes, improve customer information management system, timely, efficient, to provide satisfactory service to our users.

    FAQ

    1. Are you a manufacture or trading company ?
    Factory+ trade(mainly factories, at the same time, we operates other related products)

    2. Can we visit your factory ?
    Sure,welcome at any time, seeing is believing.

    3. Is your company accept customization ?
    We have own factory and excellent technical team, and we accept OEM service

    4. What’s the MOQ of trial order ?
    No limit, we can offer the best suggestions and solutions according to your condition.

    5. Will your company supply samples ?
    Yes, we do. The shipping charges should be undertaken by customer.

  • Low Creep Clay Bricks

    The chemical and mineral composition of clay brick. Clay bricks usually contain 30%~48% of Al2O3, 50%~65% of SiO2, and a little amount of alkali metals, alkaline earth metal oxides(TiO2, Fe2O3, etc). The mineral compositions of fireclay bricks are: mullite, cristobalite, quartz and glass phase.

    The refractoriness of clay bricks is usually between 1580~1750℃, the higher Al2O3/SiO2 ratio, the higher the refractoriness. When there are more low melting point impurities, the refractoriness of the products significantly decreases.

    The refractoriness under load temperature of fireclay brick is about 1250~1450℃, the variation range is very large. Deformation beginning temperature is relatively low, temperature difference between 40% deformation is about 200~250℃.

    Clay brick has very low thermal expansion rate, 20~1000℃ average linear expansion rate is 4.5~6*10-6 /℃. Chamotte brick also has relatively low thermal conductivity.

    Clay brick has good thermal shock resistance, but the fluctuation scope is very large. 1100℃ water cooling recycling tests is usually higher than 10 times, that’s because clay bricks have low thermal expansion coefficient, there is no significant crystal transfer at high temperature, and have plasticity at high temperature.

    Chemical corrosion resistance. clay brick is weak acid refractory, it has good acid slag corrosion resistance, but weak resistance to basic material corrosion.

    The Applications of Clay Bricks

    Clay bricks has relatively good acid slag corrosion resistance, so they are suitable for the masonry of acidic kiln working lining. Since the chemical composition and mineral phases of clay bricks varies significantly, their high temperature performance differs greatly, so as their application.

    Glass Kiln clay blocks

    Glass kiln large scale clay bricks are clay blocks used to mason glass kiln, unit weight is no less than 50 kg.

    Glass kiln large scale clay bricks physicochemical index

    Item GCB-40a GCB-40b
    Al2O3% ≥ 40 40
    Fe2O3 % ≤ 1.5 1.8
    RUL 0.2 Mpa ℃ ≥ 1450 1400
    Reheating linear change(1400℃, 2h) 0~-0.4 0~-0.4
    Apparent porosity% ≤18 ≤18
    Cold compression strength Mpa ≥ 49 34.3

    Clay bricks used in blast furnace should have high cold crushing strength and endure the abrasion of material loading, have small volume shrinkage under long term high temperature working condition, low apparent porosity, low Fe2O3 content, etc.

    Blast Furnace Clay Bricks Physicochemical Index

    Item BZCB-42 BCB-42
    Al2O3% ≥ 42 42
    Fe2O3 % ≤ 1.7 1.7
    Refractoriness ℃ 1750~1770 1750~1770
    RUL 0.2 Mpa ℃ ≥ 1450 1430
    Reheating linear change(1450℃, 3h) 0~-2 0~-3
    Apparent porosity% ≤15 ≤16
    Cold compression strength Mpa ≥ 58.8 49.0

    Hot Blast Furnace Clay Bricks

    Hot blast furnace clay bricks should have good thermal shock resistance, high rupture under load temperature, low creep. Hot blast furnace clay bricks are mainly used in regenerator chamber, partition wall and so on.

    Hot blast furnace clay bricks physicochemical index

    Item HCB-42 HCB-40 HCB-36
    Al2O3% ≥ 42 40 36
    Refractoriness ℃ 1750~1770 1730~1750 1690~1710
    RUL 0.2 Mpa ℃ ≥ 1400 1350 1300
    Reheating linear change (1450℃, 3h)0~-0.4 (1350℃, 3h)0~-0.3 (1350℃, 3h)0~-0.5
    Apparent porosity% ≤24 ≤24 ≤25
    Cold compression strength Mpa ≥ 29.4 24.5 19.6

  • Corundum Mullite Castable

    Corundum Mullite Castable Definition

    The corundum mullite product is made of electrofusion, corundum mullite is made of corundum mullite castable. Corundum mullite is poured and formed. Castable corundum mullite has high refractoriness and mechanical strength at high temperature. The high load softening temperature can be widely used in various industrial furnaces.

    Corundum Mullite Castable Features

    1．Refractory corundum mullite castable have high temperature strength.
    2．Refractory corundum mullite castable have low temperature creep rate.
    3．Refractory corundum mullite castable have structural peeling resistance.
    4．Refractory corundum mullite castable have good thermal shock resistance.
    5．Refractory corundum mullite castable have good thermal shock resistance.
    6．Refractory corundum mullite castable have high load softening temperature.
    7．Refractory corundum mullite castable have good chemical corrosion resistance

    Corundum Mullite Castable Specification

    Item   RS-1 RS-2 RS-3
    Al2o3 % 70 75 85
    Sio2 % 25 17 13
    Fe2o3 % 1 1 1
    Bulk Density g/cm3 2.7 2.8 2.9
    Cold Crushing Strength 110℃*24h Mpa 100 110 120
    1100℃*3h Mpa 100 110 125
    1400℃*3h mpa 115 120 15
    Cold  modules of rupture 110℃*24h Mpa 15 15 18
    1100℃*3h Mpa 16 17 19
    1400℃*3h Mpa 17 18 5
    Normal temperature wear Cm3 7 6 1500
    0.2Mpa refractoriness under load ℃ 1450 1480 25
    Max Service Temp ℃ 1550 25 1600
    Heavy burn line rate(1300℃*3h，%） % -0.3 -0.2 -0.2

    Corundum Mullite Castable Application

    Corundum mullite refractory castable using in the lining of coal kiln before and after large cement kiln, coal injection pipe and other industrial kiln lining.
    Corundum mullite refractory castables are widely used in large and medium sized cement kiln kiln mouth, coal injection pipe, kiln head cover, cooling machine low wall.
    Corundum mullite refractory castable is widely used in circulating fluidized bed boilers, metallurgy, petrochemical, thermal power and other professional fields.
    Corundum mullite refractory castable can be used for lining of large power station boiler wear linings and other high temperature furnaces

    Corundum Mullite Castable Precautions

    1. The surface temperature level of the sinter material is increased, the high temperature operation time is prolonged to obtain sufficient heat, castable corundum mullite is conducive to the consolidation of the surface powder and the strength and yield of the surface sinter. The current problems of the above methods are: the refractory material of the ignition and holding furnace is seriously washed by the airflow, the service life is short, the construction time of the removal and replacement is long, especially the oven is long.

    2. In order to shorten the production stoppage time, researchers combined with the actual situation of production and construction, using a new material — sol combined with corundum mullite castables to replace the traditional mullite castables. The early strength is high, the curing time is short, and the production can be resumed simply by baking, castable corundum mullite greatly shortens the construction period and achieves good economic results.

    3. Generally, the ignition holding furnace adopts a mullite castable and a heat insulating product to hang the refractory brick through the heat resistant anchor to form a composite composite refractory lining, castable corundum mullite has low price, high temperature performance, easy sintering, high strength, castable corundum mullite is not easy to crack and resist. Erosion, anti-wear. However, after stirring and shaking with water, castable corundum mullite takes 24 hours to remove the mold. After 48 hours of natural curing, the oven can be oven dried for at least 72 hours to ensure moisture discharge and no bursting.

    4. Castable corundum mullite only takes 6 days from the mixing and pouring to the mold removal and then to the oven. Castable corundum mullite does not include the process of dismantling the original furnace body, setting up the scaffolding, laying the furnace wall and the top of the furnace, demolishing the mold. At least 15 days.

    Why to Choose the RS Refractory Factory as Corundum Mullite Castable Supplier

    Rongsheng refractory bricks factory direct sales, reasonable price, provide customized services, welcome to consult. Rongsheng refractory castable manufacturer adhering to: quality first, reputation first, customer first. Scientific management, strong technical force, perfect testing methods, advanced technology and equipment, stable product quality are the guarantee of quality service.

  • Corundum Refractory Castable

    Corundum Refractory Castable Definition

    The corundum product package is rich in corundum castables, corundum can be plastic, corundum ramming material, corundum wear resistant material, corundum products use Al2O3 content greater than 90%, corundum-based refractory products with appropriate dispersant , coagulant, stainless steel fiber, compounded according to strict formula.

    Corundum Refractory Castable Features

    Corundum refractory castable have good sealing
    Corundum refractory castable have wear resistance
    Corundum refractory castable have corrosion resistance
    Corundum refractory castable have high heat conductivity
    Corundum refractory castable have thermal shock resistance
    Corundum refractory castable have high temperature strength

    Corundum Refractory Castable Specification

    Item   JJG-16 JJG-17 JJG-18
    AL2O3(%)   85 90 93
    Sio2(%)   10 6 2
    Bulk Density(g/cm3)   2.9 3.0 3.0
     

    Cold Crushing Strength(Mpa)

    C.C.S Mpa

    		 110℃*24h 80 100 80
    1100℃*3h 80 100 80
    1500℃*3h 80 100 80
     

    Cold Pressed Antisegregation Strength(Mpa)

    M.O.R.MPa

    		 110℃*24h 8 12 8
    1100℃*3h 8 12 8
    1500℃*3h 8 15 8
    Hot after-line rate of change(%) 1100℃*3h -0.1~-0.3 -0.1~-0.3 +-0.2
    Max Service temp(℃） 1650 -0.1~-0.5 -0.2~-0.6 +-0.5
    Construction methods   Vibration Vibration Vibration
    Reference water volume（%）   5~6 5.5~6.5 5.5~6.5

    Corundum Refractory Castable Application

    1.Corundum refractory castable is suitable for the high abrasion resistance, erosion resistance and tortoise mesh of the refinery catalytic cracking equipment, cyclone separator and inclined tube device. The processing equipment such as synthetic ammonia is used for one stage and two stage reforming furnace lining pouring.
    2.Corundum castable refractory material mainly used for the parts of the circulating fluidized bed boiler combustion chamber, separator and flue.
    Corundum castable refractory is used for heating furnace hearth, tapping tank and cement rotary kiln kiln mouth.

    Corundum Refractory Castable Instructions

    1.Corundum Castable Refractory Stirring
    Stirring is carried out by a forced mixer. Each bag is an integral unit. It can be stirred in multiple bags according to the actual dosage. The construction temperature is 5 ℃-35 ℃. When the temperature is low or high, the heating or cooling measures must be adopted to meet the construction temperature requirements.

    2.Corundum Castable Refractory Stirring Method
    firstly put the refractory aggregate and the binder into the forced mixer, dry the dry material for 2 minutes, make the color of the material uniform, and then add water for 3-5 minutes until the material color is uniform. The agitated material can be agglomerated by hand but not leaking.

    3.Corundum Castable Refractory Add Water
    6-8% of the weight of refractory castable materials, can be properly floated according to weather conditions, water must be clean drinking water. Refractory corundum castables must be completed within 30 minutes after mixing with water. is strictly forbidden to return material and stir mixing construction and secondary water mixing.

    4.Corundum Castable Refractory Vibrating
    Corundum castables should be cast by insert vibrator or flat vibrator. The casting height of each layer shall not exceed 400mm. The vibration of each layer may cause the surface to be slurry. In one part, Corundum castable refractory material shall not vibrate for a long time to prevent the material particles from being graded or the template being displaced. Corundum castable refractory material must be vibrated by vibrator during construction, manual vibrating construction is not allowed.
    The pouring material should be continuously carried out during construction. Before the initial pouring of the previous layer, the next layer of castable should be poured. If the construction gap exceeds its initial setting period, Corundum castables should be treated according to the construction joint requirements.

    5.Refractory Castables Maintenance and Demoulding
    After the pouring, natural curing can be demoulded after 24 hours. After the corundum castable is poured, Corundum refractory castables can be naturally cured. Castable refractory corundum can not be watered during curing, and the curing temperature is 5 ℃ – 35 ℃. After curing for 72 hours after demolding, castable corundum refractory can be baked according to the heating curve.

    Corundum Refractory Castable Supplier in Rongsheng Firebricks Factory

    Rongsheng refractory manufacturer has 20 years of quality assurance, bringing maximum benefits to customers.
    Rongsheng refractory castables manufacturer has four advantages
    1.Rongsheng refractory bricks manufacture have strong production capacity, supply is guaranteed.
    2.Rongsheng refractory bricks company has professional refractory brick production plants and amorphous refractory production plants.
    3.Rongsheng refractory bricks manufacture Have advanced concepts and scientific management. Rongsheng Refractory is constantly committed to quality management, process management and cost management, strives for internal strength, adheres to the development of science and technology, wins by quality and reputation, provides technical guidance services to provide customers with quality products and services.
    4.Rongsheng refractory bricks manufacture have perfect after-sales service system
    From raw material procurement to final product inspection and after-sales service. Ensure that the product offered to the user is 100% qualified.

    Why to Choose the Rongsheng Firebricks Factory

    Rongsheng refractory bricks factory direct sales, reasonable price, provide customized services, welcome to consult. Rongsheng refractory castable manufacturer adhering to: quality first, reputation first, customer first. Scientific management, strong technical force, perfect testing methods, advanced technology and equipment, stable product quality are the guarantee of quality service.

  • Fire Clay Insulation Castable

    Good workability, strong cohesion, initial setting time and construction can be a long time, fast strength growth, strong impermeability, no acidification, easy to ensure that the masonry plaster full and dense, can significantly improve the chimney liner air tightness, integrity and anti-corrosion ability. It is an ideal cementing material for high chimneys, high temperature flue and duct lining. It can also be used in acid tank and other acid resistant parts in petroleum, chemical, nonferrous metallurgy and so on.

    Application of Clay Insulation Castable

    Metallurgical industry
    Petroleum, chemical industry, building materials, electric power
    Engineering industry furnace and thermal equipment

    Detailed Fire Clay Insulation Castable Description

    Item Unit L-45 L-50 L-60 L-65 L-75 L-80 L-85 L-90
    Al2O3 % 45 50 60 65 75 80 85 95
    Fe2O3 % 2 2.5 2.5 2.3 2.5 2.0 1.8 1.2
    Bulk Density(dried at 110℃) g/cm3 2.2 2.2 2.3 2.35 2.5 2.6 2.7 3.0
    Service Temp ℃ 1400 1450 1500 1550 1600 1650 1700 1750
    Cold Crushing Strength 110℃ Mpa 45 47 50 50 65 70 90 95
    1100℃ Mpa 40 42 45 45 55 60 80 85
    1500℃ Mpa – – 65 68 80 85 100 110
    Modulus of Rupture 110℃ Mpa 7 7 8 8 10 11 12 13
    1100℃ Mpa 6 6 7 7 9 9 10 12
    1500℃ Mpa – – 9 9 11 12 13 15
    Max Grain Size mm 6 6 6 6 6 6 6 6
    Water(Typical) % 11-13 11-13 9-11 9-11 9-11 7-9 6-8 6-7
    Application Guidelines P-preferred, R-Rodding,V-Vibration, T-Tamping
    Mixer p P P P P P P P p
    Placement R/V/T R/V/T R/V/T R/V/T R/V/T R/V/T R/V/T R/V/T R/V/T
    Water/Mixer Temp 20±5 20±5 20±5 20±5 20±5 20±5 20±5 20±5 20±5
    Mixing 2/5 2/5 2/5 2/5 2/5 2/5 2/5 2/5 2/5

     

  • Low Cement Castable

    Application of Refractory Castable

    1. Furnaces of metallurgy industry, heat treatment furnace.
    2. Furnace of incineration of garbage, recirculating fluidized bed furnace.
    3. Furnaces of chemical industry and construction industry.
    4. Tundish lining.

    Properties of Refractory Castable

    Al2O3, %  ≥ 50 60 70 80 90
    CaO, %   ≤ 2.5 2.2 2 2 1.8
    Bulk density, g/cm3 ≥ 2.35 2.45 2.5 2.6 2.95
    Cold crushing strength, Mpa ≥ 110x24h 20 25 30 30 40
    1000x3h 45 50 55 55 65
    1400x3h 60 65 70 70 80
    Linear on reheating, % 1400x3h ±0.5 ±0.4 ±0.4 ±0.3 ±0.4
    Max. service temperature, °C 1400 1450 1500 1550 1650
    Water consumption, % 6 ~ 7.5 6 ~ 7.5 6 ~ 7.5 6 ~ 6.5 6 ~ 6.5