Jun 29, 2021
Wear Reistant Refractory Plastic

Wear Resistant Refractory Plastic Defination

The wear resistant refractory plastic is made of high aluminum clinker, corundum, mullite and silicon carbide, wear resistant plastic is prepared by using different binders and admixtures, the refraftory plastic is formed by beating, vibrating or extruding.The mud-shaped amorphous refractories. Wear resistant plastic refractory has excellent wear resistance, super strong adhesion and high service temperature (1600 °C). The construction process is simple and the construction period is short. Not one of oven is needed after the construction is completed. The refractory plastic service life is significantly higher than other wear resistant refractories.

Wear Resistant Refractory Plastic Characteristic

1.The construction time with wear resistant refractory plastic castable can be adjusted, the construction time can be maintained at high temperature.
2.Wear resistant refractory plastic castable have outstanding wear resistance.
3.Plastic castable wear resistant refractory can be used as a single layer wear-resistant lining, can also be used in combination with PN-GD series products, suitable for parts that are more scouring and require heat insulation.
4.the construction plasticity of the refractory plastic is good, no bulging, no cracking.
5.The construction performance with the wear resistant plastic is good, the strength is high, the wear resistance is good, the field use effect is the best, plastic refractory is beneficial to prolonging the service life of the furnace lining and improving the utilization efficiency of the high temperature kiln.

Wear Resistant Refractory Plastic Specification

Item Wear resistant refractory plastic
Index RS-1 RS-2
Bulk Density(g/cm3) 2.7 2.6
Cold Crushing Strength(Mpa) 110℃*24h 60 50
800℃*3h 80 70
Flexural Strength(Mpa) 110℃*24h 10 9
800℃*3h 15 12
Thermal Shock Resistance(900℃,time) 20 20
Linear Dimensional Change(℃) 1300 1300
Wear Resistance(℃*6h) 8 9
Plastic index(%) 15~40 15~40
Refractoriness(℃) 1770 1770
Al2o3(%) 70 50
Sic(%) 30

Wear Resistant Refractory Plastic Application

1.Wear resistant refractory plastics are mainly used for various heating furnaces, soaking furnaces, annealing furnaces, sintering furnaces, and electric furnace roofs in the steel industry.
2.Plastic refractory wear resistant suitable for construction of thin parts such as furnace water wall.
3.Wear resistant refractory plastics are mainly used in the dense phase zone of the furnace and the steam-cooled cyclone separator.
4.Plastic wear resistant refractory is mainly used for maintenance and repair of high temperature and easy wear parts and furnace walls in which circulating fluidized bed boilers and other thermal kiln linings cannot be poured.

Wear Resistant Refractory Plastic Construction Process

1.The wear resistant refractory plastic castable of construction is carried out by the method of tapping and compacting. Before the construction, the refractory plastic can be laid at the required part, the blanks should be laid in the wrong seam. After the beating, the joint of the blank should be beaten, and then the hammer or hammer will be used. The entire area was beaten 3 times to ensure the material density.
2.The correct anchoring factor is very important for supporting the sheet-like refractory plastic. Using rigid anchoring nail tips, the anchoring nail tips are spaced about 150mm~250mm. The thickness of the refractory material can be determined according to the design requirements of different the high temp furnace types.
3.After determining the damaged part with the high temp kiln, the edge is trimmed with a tool at a right angle and not sagged by 20 mm, that is, the repaired thickness is not less than 20 mm. After repairing, the wear resistant refractory plastic can be smoothed over the original refractory material, the trapezoidal connection cannot occur.
4.Clean the repaired parts with the high temp furnace. If the original refractory material has unstable particles, plastic refractory must be removed. There should be no floating dust to ensure that the repaired surface has a solid and clean working surface.
5.The refractory plastic castable wear resistant can be sliced with a very clean knife, the fresh side is attached to the repaired part, and then the hammer is hammered or hammered tightly. The blank should be laid in a wrong way. After the beating, the blank should be connected. Sewage, no gaps can occur, and after all the repaired surfaces are attached, use a hammer to repeatedly tamper them until the surface of the blank is wet. Pay attention to the edges when beating, do not beat the original refractory material, and finally solidify the entire repair surface into a smooth plane.

Wear Resistant Refractory Plastic of the Plastic Effect

1.Refractory wear-resistant plastics should have good plasticity during production and use.
2.Plastic refractory castable of the plasticity is the property that the mud material is easily deformed without breaking after being stressed, which is expressed by the plasticity index (the percentage of the plastic deformation height after the impact of the sample and the height of the original sample).
3.The plastic refractory index is 20-30%. If wear resistant plastic refractory is less than 20%, plastic refractory is too hard and difficult to apply. If refractory plastic wear resistant is more than 30%,refractory plastic is too soft, the beating is not real, and the shrinkage after burning is large. The plastic refractory index is suitable for refractory plastic.
4.There are can be kneaded into a dough by hand, and no water is secreted or sticky. The refractory plastic has high temperature strength, good thermal shock resistance and strong peeling resistance, but the construction efficiency is low and the labor intensity is large.

Wear Resistant Refractory Plastic Supplier in RS Refractory Castable Factory

1.Rongsheng refractory castable factory has been engaged in refractory material industry for more than 20 years. Rongsheng refractory castable factory have a big technological team, there are more than 15 senior designers for the furnace & kiln. Refractory castable factory are good at different technological field, such as refractory bricks , refractory castable , lightweight insulation firebricks and prefabricated bricks according to client requirement .
2.Rongsheng refractory bricks factory provide Refractory production and customization, fast delivery, short cycle, and more peace of mind.
3.Rongsheng refractorey bricks company supply construction and installation, one-stop procurement platform plus solutions, more thoughtful.
4.Rongsheng refractorey bricks company have professional after-sales service team, serving every customer throughout the whole year.

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Jun 29, 2021
Micro Expansion Refractory Plastic

Micro Expansion Refractory Plastic Definition

The high temperature micro expansion refractory plastic is composed of a certain grade of refractory aggregate, and a suitable amount of kyanite powder and a binder are mixed at a certain ratio. Refractory plastic micro expansion is a kind of gas-hard material, which has good plasticity at normal temperature, micro-expansion at high temperature, high strength after high temperature, good sealing performance and convenient constructio.

Micro Expansion Refractory Plastic Features

1. The micro expansion refractory plastic has strong plasticity at room temperature, large adhesion, high strength after natural drying, micro-expansion in volume at high temperature, high refractoriness, good sealing performance and convenient construction.
2. The requirements for the micro expansion refractory plastic used are that the content of AliO3 is low, the strength is moderate, the thermal shock resistance is good, and the line change after burning is slightly expanded.
3. The micro expansion refractory plastic has the advantages of strong plasticity at room temperature, high adhesion, natural strength after drying, micro-expansion in volume at high temperature, high refractoriness, good sealing performance and convenient construction.
4. Micro-expansion refractory plastic at high temperature is beneficial to improve the overall sealing of the furnace wall and reduce thermal energy loss.

Micro Expansion Refractory Plastic Specification

Al2o3 % 50-70%
Line change after burning(%) (1400℃*3h) +2-+3.5
Bulk Density g/cm3 2.2-2.4
Compressive strength 110℃*24h Mpa 15
1000℃*3h Mpa 12
Flexural strength 110℃*24h Mpa 10
1000℃*3h Mpa 5.5
Refractoriness 1650

Micro Expansion Refractory Plastic Application

1.Micro expansion plastic refractory widely used in metallurgy, petrochemical, electric power, building materials and other fields, especially in different parts of power plant boilers.
2.Micro expansion plastic is suitable for the cyclone cylinder of the circulating fluidized bed boiler, the lining of the furnace wall and the parts with severe impact and wear of coal ash.
3.Fireproof micro expansion plastic widely used in the thermal power industry CFB boiler, pulverized coal furnace and other industrial kiln furnace top wall pipe, furnace flame angle, furnace wall complex parts.
4.Refractory plastic micro expansion is widely used in CFB boilers, pulverized coal furnaces and other industrial furnaces such as CFB boilers, pulverized coal furnaces, and other industrial furnaces, through the wall pipe, in the furnace, the flame angle, and the complicated part of the furnace wall.

Micro Expansion Refractory Plastic Construction Instructions

1. The micro expansion refractory plastic can be formed by the method of tamping and compacting. When constructing, the plastic can be manually laid at the required thickness according to the specified requirements, and then hammered with a wind hammer or a hand hammer to penetrate the wall at the top of the furnace. When applied, due to the narrow construction site, Refractory plastic micro expansion can be beaten with long planks. Generally, refractory plastic is not easy to be overweight. The construction surface cannot be shocked like refractory enamel to the surface to produce slurry. Otherwise, refractory plastic is not conducive to the compactness and moisture evaporation of the plastic internal structure. Not easy to smear, smooth.
2. Specific construction beatings with the micro expansion refractory plastic can be divided into two beatings. After the first beating is compacted, according to the local temperature and temperature, when the refractory plastic surface is nearly air-dried, a second beating is performed (usually 3-5 hours interval). This can improve the compactness of the construction and fully achieve the sealing effect.
3. When used in other parts, the plastic refractory can be laid on the use part according to the design thickness requirement. When the construction thickness is greater than 50mm, the d3-4mm wire is used after the tapping is compacted, and the vent hole is perpendicular to the working face. The hole depth is total. Plastic refractory has a thickness of 2/3 and a pitch of 150-250mm, which can be used for exhausting and buffering. Oven is an important part, especially when operating wood plants in the application of wood materials in the maintenance of the oven is directly related to the use and life. However, due to the long cycle of the new power plant project, when the boiler is ignited, the refractory material has been naturally air-dried in the air, and a certain compressive and flexural strength is formed, so there is basically no oven problem. High temperature micro expansion refractory plastics have more water content, and the baking heating rate should be strictly controlled. Especially in the low temperature state, the temperature rise must be slow. If the temperature rises too fast, a large amount of water is discharged from the refractory plastic too quickly, and micro expansion refractory plastic can be similar to other fire-resistant. Concrete causes expansion, cracks, spalling and other undesirable phenomena, affecting the use effect.

Micro Expansion Refractory Plastic Supplier in RS Refractoty Bricks Factory

1. Rongsheng refractory manufacturer has 20 years of quality assurance, bringing maximum benefits to customers.
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.
4. Rongsheng refractory factory 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.
5. From refractory raw material procurement to final product inspection and after-sales service. Ensure that the product offered to the user is 100% qualified.

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Jun 29, 2021
Acid And Wear Resistant Plastic

Phosphate acid or acidic aluminum phosphate is used as the binder of acid proof and wear resistant plastic refractory, clay clinker, high alumina or corundum are used as aggregate, plastic refractory clay and conservant are added into aggregate to make acid and wear resistant plastic refractory. To increase the wear resistance of plastic refractory, corundum can be used as aggregate, α-Al2O3 fine powder and micro powder can  be used to increase the abrasion resistance of plastic mix.

Physiochemical indexes of acid and wear resistant plastic refractory:

Item Index
Bulk density g/cm3 ≥2.8(110℃,24h)
Crushing strength Mpa ≥80(110℃, 24h)
≥90(1100℃, 5h)
Modulus of rupture Mpa ≥14(110℃, 24h)
≥18(1120℃, 5h)
Refractoriness ℃ ≥1730
Thermal shock resistance/ times (900℃, water cooling) ≥25
Thermal conductivity (w/m·K) 1.72(350℃)
Abrasion resistance ≤6

The Storage of Acid And Wear Resistant Plastic Refractory

Store in cool and dry warehouse, suitable storage environment can prolong the storage period.
Acid and wear resistant plastic refractory not used up should be sealed and stored in warehouse, no impurity or air should enter into it.
Keep from moisture during storage, plastic refractory should not contact with water or rain.
Long term exposure to the sun should be prohibited, keep acid and wear resistant plastic refractory in cool and dry in door environment.

Application of Acid And Wear Resistant Plastic:

Steel furnaces
Iron making furnaces
Glass kiln
Ceramic tunnel kiln
Cement kiln

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Jun 29, 2021
Silicon Carbide Plastic Refractory

Corundum Silicon Carbide Plastic Refractory Characteristics

Excellent wear resistance, good resistance to mechanical abrasion and impulsion.
High refractoriness, and good high temperature stability.
Excellent acid and basic corrosion resistance.
Good thermal conductivity, spalling resistance.
Strong cohesiveness and plasticity.
Easy to put into application, short construction and maintenance period.
Applicable for all kinds of situations, long service life.
Thermal shock resistance and high strength.

Corundum Silicon Carbide Plastic Refractory Technical Parameters

Items RS-ASC-60 RS-ASC-73
Al2O3 % ≥ 60 72
SiC (%) ≥ 20 20
Bulk Density (g/cm3) 2.50 2.55
Cold crushing Strength (MPa) 60 70
Permanent linear chang3( %   850℃ * 3h)  ≤ -0.5~0 -0.6~0
Thermal shock resistance (850℃*3h  After burning) times≥ 35 40
Plasticity index % 15~40 15~40

Corundum Silicon Carbide Plastic Refractory Production procedures

Batch material preparation. Aggregate material 53%~65%, powder material 35~45%, 1.20~1.35g/cm3 phosphoric acid solution 9~11%.
Material mixing and tempering. During producing corundum silicon carbide plastic refractory green body, two-step tempering process should be adopted. First, adding 60% of phosphoric acid solution and fully mixed, then aging for 24h. Then adding the rest 40% of phosphoric acid solution and mixes together.
Press or squeeze into block shape and packed by plastic film.
Sealing and storing.

Corundum Silicon Carbide Plastic Refractory Applications

Plastic refractory is mainly used in all kinds of heating furnaces where doesn’t contact with molten material. Since corundum Silicon carbide plastic refractory has many advantages: excellent wear resistance, erosion and corrosion resistance, high refractoriness, thermal shock resistance and high mechanical strength, it has a wide application in metallurgy, steel industry, ceramic industry, etc. For example, power plant boiler, combustor ling of circulating fluid bed boiler and entrance of high temperature glass furnace. Corundum silicon carbide plastic refractory is also applied in refractory belt of pulverized coal furnace for its high thermal conductivity, thermal shock resistance and slag resistance. Corundum silicon carbide plastic refractory also has very strong cohesion ability, so it can be casted into lining body or be made as precast block by casting or ramming.

High Quality Corundum SiC Plastic Refractory Factory-RS Kiln & Refractory

Rongsheng Kiln Refractory supplies high quality corundum SiC plastic refractory, as well as corundum mullite plastic refractory, corundum plastic refractory and so on with favorable price, fast delivery and professional technical support. RS dominant refractory products such as high quality firebrick, refractory castable, plastic refractory, insulating refractory, ceramic fiber products and so on have been exported to more than 60 countries around the world and won customers’ high praise.

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Jun 29, 2021
High Alumina Cement

High Alumina Refractory Cement Characteristics

Quick hardening and good early stage strength.
Excellent material for rapid repair.
High temperature resistance and wear resistance.
Has wide application fields such as kilns, furnaces, boilers, fireplaces, etc.
Thermal shock resistance, convenient for use.

High Alumina Refractory Cement Parameters

Item RSCA-50 RSCA-60 RSCA-70 RSCA-80
Chemical Component

 

Al2O3 (%) 50-60 60-68 68-77 ≥77
SiO2(%) ≤8.0 ≤5.0 ≤1.0 ≤0.5
Fe2O3 (%) ≤2.5 ≤2.0 ≤0.7 0.5
R2O(Na2O+0.658K2O) (%) ≤0.4 ≤0.4 ≤0.4 ≤0.4
Rupture Strength MPa 1day 5.5 2.5 5.0 4.0
3days 6.5 5.0 6.0 5.0
28days / 10.0 / /
Compressive Strength MPa 1day 40 20 30 25
3days 50 45 40 30
28days / 80 / /
Setting Time (h) Initial time ≥0.5 ≥1 ≥0.5 ≥0.5
Final time ≤6 ≤18 ≤6 ≤6

High Alumina Refractory Cement Applications

High alumina refractory cement are usually used to patch or line furnaces and bond bricks or joints in high temperature applications. Calcium aluminate cement can also be used to make refractory mortar or concrete for the construction of cement rotary kiln and other industrial furnace lining. High alumina refractory cement is also important construction material for high temperature projects which should withstand atmospheric or rain erosion for a long period.

RS Kiln Refractory-Your Best High Temperature Projects Supplier

RS kiln refractory is a comprehensive group company that produces all kinds of unshaped(monolithic) and shaped refractory materials. RS group has 3 subordinate factories and one specialized sales company. The factories annual output capacity of shaped refractory products is 100,000 tons while monolithic refractory materials is 300,000 tons. Since RS was authorized export certificate in 2003, RS brand refractory bricks, castable, cement, ceramic fiber textiles and so on have been exported to more than 60 countries and regions and won good fame.

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Jun 29, 2021
Pure Calcium Aluminate Cement

Pure Calcium Aluminate Cement Application

Calcium aluminate CA-70/80 is used for manufacturing good property (low water, low cement) refractory castable, or unshaped bulk refractory materials, which are used in high temperature, high pressure, and reducing condition.  It is also high quality binder of refractory castable, which is extensively applied in chemical industry, metallurgical industry, building material, petroleum industry, ceramic industry etc.

Pure Calcium Aluminate Cement Features

Refractoriness under load is high; strength in working temperature is high; resistance to erosion is good. For high purity, it has high erosion resistance to reducing medium such as Co, H2, and CH4.
The early strength and strength in medial temperature of CA-70/80 are both high.
Refractoriness is more than 1650°C.

Pure Calcium Aluminate Cement Physical & Chemical Indicators

Type CA70 CA80
Chemical content (%) SiO2 ≤1.0 ≤0.5
Al2O3 ≥68.0 ≥77.0
Fe2O3 ≤0.7 ≤0.5
R2O ≤0.4 ≤0.4
S ≤0.1 ≤0.1
Cl ≤0.1 ≤0.1
325M screen residue (%) ≤5 ≤5
S    (m2/kg) ≥400 ≥450
Initial setting time (min) ≥45 ≥45
Final setting time (h) ≤6 ≤6
Bending Strength (MPa) 6h —— ——
1d ≥5.5 ≥5.0
3d ≥6.5 ≥6.0
Compressive strength (MPa) 6h —— ——
1d ≥40 ≥30
3d ≥50 ≥40
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