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Yearly Archives: 2022

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Apr 24, 2022
Ceramic Roller

In order lo achieve the ideal use effect and extend the service life of ceramic roller. Please refer to the following instructions:
(1) The new ceramic roller before use, should be placed dry kiln top (60-8o ℃) more than 24 hours.
(2) After coating, the roller should be placed on the top of the kin for more than 72hous to dry;
(3) When replacing the roller, the roller should be quickly, quickly and rotated
(4) The thermal zone of roller, to avoid the low resistance to cold, should be placed in a veneer cushion on the scaffold, and keep the rotating state below 600 ℃；
(5) The surface of the roller is coated with small glaze particles, which will affect the thermal shock performance of the roller. It should be cleaned regularly
(6) Unqualified raw materials and fuels will corrode roller rods and be used carefully.ceramic roller 1 ceramic roller 2 ceramic roller 3

Main Technical Specifications of Ceramic Roller

Item RS-N98 RS-G98 RS-S95 RS-H80
Bulk Density g/cm3 2.7-2.8 2.8-3.0 2.5-2.7 2.3-2.5
Bibulous Rate % 5-8 3-6 9-10 9-11
Modulus of Rupture Mpa 50-55 70-80 40-50 45-55
High Temperature Modulus of Rupture Mpa ≥50 ≥55 ≥45 ≥40
Maximum use temperature ℃ 1350 1400 1250 ≤1100
Thermal Shock Resistance Good Good Good Good
Raw Material Composition(Zr Al2O3) % 76-81 78-85 SIC 55% 75-80%
Specifications Diameter φ16-200mm Length 1000-5500mm
Straightness Length X≤0.07%

Main Technical Specifications of Ceramic Roller:

The physical and chemical data in the table are obtained from laboratory test samples for reference only when different specifications of products are actually used.

The maximum operating temperature of the ceramic rollers is determined by the size of the rollers,the distance between the supporting points,the distance between the center of the roller,the load and the load width in the kiln.

The highest temperature in the table is the recommended data under laboratory condition,actual temperature than the highest temperature for a long time to use low temperature 30 to 50 ℃。

Special shaped roller can be customized according to customer requirements.ceramic roller 4 ceramic roller 5 ceramic roller 6

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Apr 24, 2022
Silicon Carbide Crucible

Silicon carbide sagger produced by Rongsheng Group have the characteristics of good flexibility, not easy to crack, and long service life, and also the large capacity of the sagger increases the output, guarantees the quality, saves labor and lots of costs.
The company has successively supplied customers in more than 60 countries. Through our company’s continuous improvement of products and strict control of the production process, the stability of product quality has been improved, so that customers can get real benefits and have won unanimous praise from users.silicon carbide saggers 1 silicon carbide saggers 2 silicon carbide saggers 3

Technical Data:

No. Particulars Parameter
1 SiC（%） ≥85%
2 SiO₂（%） ≤10%
3 Fe₂O₃（%） <1%
4 Bulk Density in g/cm³ ≥2.60
5 Cold Crushing Strength（MPa） ≥100
6 Apparent Porosity（%） ≤18
7 Refractoriness，(°C) ≥1700

Silicon Carbide Pipe:

The product is made of silicon carbide as the main raw material, adding a variety of chemical wear-resistant raw materials and anti-oxidant, effectively improving the wear resistance of the product, using SiO2 micro powder as the high-temperature bonding phase, a high-performance silicon carbide products by high-temperature firing, with the following characteristics:
1.Dimensional stability at high temperatures, resistance to deformation and high strength at high temperatures
2. Resistance to thermal shock, abrasion and corrosion
3.Anti-oxidation and erosion resistance
It can be widely used in: electric power, steel plant slag flushing trench, coal chemical industry, mining, transportation pipeline.

Technical Data:

Technical Performance Bulk Density Abrasion Resistance Moh’s Hardness CCS
g/cm³ % MPa Mpa
Silicon Carbide Tubes 2.7 1.66 >9.0 21.2

Silicon Carbide Bricks/Silicon Carbide Plates/Silicon Carbide Pillars/Silicon Carbide Special-shaped Parts:

Silicon carbide bricks, sheds, brackets and silicon carbide special-shaped parts produced with silicon carbide as the main raw material not only have the inherent characteristics of silicon carbide such as high strength and high hardness, but also have high refractoriness under load, fast heat conduction, anti-oxidation, It is not easy to shrink and deform under high temperature, and has the characteristics of long service life.
No matter what kind of combustion energy (gas, coal, oil, electricity) is used, this product has excellent characteristics such as non-bending deformation, non-expansion and slag falling, and strong heat radiation at high temperatures, and is widely praised by our customers. We uses advanced hydraulic vibration molding equipment, which can be molded in one time, with unique formula and advanced technology, which is well received by users.

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Apr 24, 2022
Foam Ceramic Filter

Product Characteristics:

1. Silicon carbide foam ceramic filter using German imported polyurethane foam sponge as a carrier, silicon carbide mainly squeezed into the foam sponge, and then squeeze out the slurry,
the slurry around the foam fiber, after drying, baking at high temperature, polyurethane thermal
decomposition, leaving foam ceramic products, namely silicon carbide foam ceramic filter.
The silicon carbide foam ceramic filter, with the three- dimensional mesh interconnection structure of foam sponge, can make metal liquid reflect rectification, mechanical screening, filtration cake, adsorption and other filtration mechanisms to effectively improve the purity of metal liquid, reduce waste rate, reduce mechanical processing loss, thus improve production efficiency and reduce production cost.foam ceramic filter 1

Composition of product Silicon Carbide,AL2O3,SiO ect
Color Grey,Dark Grey
Using Temperature ≤1550℃
Number of hole density PP(holes per square inch) 10,15,20,30
Porosity 85%-90%
CMOR Mpa ≥1.5Mpa(Industry Standard 1.0Mpa)
Bulk Density 0.4g/cm3~0.5g/cm3
Square specification(mm) Max filtering capacity(kg) Normal metal fluid flow velocity(kg/s) Round Specification(mm) Max filtering capacity(kg) Normal metal fluid flow velocity(kg/s)
Ductile cast iron Ash cast iron/copper-aluminum castings Ductile cast iron Ash cast iron/copper-aluminum castings Ductile cast iron Ash cast iron/copper-aluminum castings Ductile cast iron Ash cast iron/copper-aluminum castings
40*40*22 32 64 3 4 Φ40*22 25 50 2 3.5
50*50*22 50 100 4 6 Φ50*22 35 70 3 4.5
60*60*22 72 144 5 8 Φ60*22 50 100 4.2 6.5
75*50*22 75 150 6 9 Φ70*22 75 150 5.5 8.8
100*50*22 100 200 8 12 Φ80*22 100 200 7.2 11
75*75*22 110 220 9 14 Φ90*22 120 240 9 14
80*80*22 150 300 12 18 Φ100*22 140 280 11 17
100*100*22 200 400 16 24 Φ110*22 190 380 13 20
150*100*22 300 600 24 36 Φ120*22 230 460 16 25
150*150*22 450 900 36 54 Φ150*22 350 700 25 30

2.Alumina Foam Ceramic Filter
Alumina ceramic foam filter is a new type of low density, high porosity and with three dimensional network skeleton structure of the filter. And widely used in aluminum process industry for molten aluminum filtering, so as to improve aluminum quality.
Alumina ceramic foam filter can effectively removes non-metal solid mixture from aluminium and aluminium alloy fusant, reduce trapped gas and provide laminar flow and then the filtered metal is significantly cleaner. Cleaner metal results in higher-quality castings, less scrap, and fewer inclusion defects, to improve the quality of aluminum alloy and other non-ferrous alloy casting, all of which contribute to reduce casting cost, its maximum service temperature 1200° C.
Alumina ceramic foam filter has the advantages of high porosity, high mechanical strength, stable chemical property, strong corrosion-resistant, high adsorption rate, excellent filtering functions and thermal shock resistance. It is mainly used for purification process of aluminum, aluminum alloy, and other nonferrous alloy production, can also be used as gas-solid, liquid-solid separation medium, catalyst carrier, burner and sound-absorbing and environmental protection fields.
Alumina ceramic foam filter is equipped with a gasket on the edges; the gasket assures the proper and tight position of the filter within the filter box. There are different types of gasket available, e.g. ceramic fiber gasket etc., also can provide alumina ceramic foam filter without gasket. These types of filters have been favored by customers from Europe and the United States for years.foam ceramic filter 2

Application of Alumina ceramic foam filter:

Alumina ceramic foam filter is mainly applied to the aluminum and aluminum alloys fusant filter equipment of continuous casting, half-continuous casting, gravity casting, and low pressure casting, also applied to other non-ferrous metal precision casting, gas-solid and liquid-solid separation medium, high temperature gas filter, chemical filling, sound absorbing material and catalysis carrier etc.

Porosity(%) 80-90%
Working Temperature ≤1100℃
Bending Strength (Mpa) 0.6
Compression Strength (Mpa) 0.8
Thermal Shock Resistance 1100℃—room temperature 6 times
Bulk Density 0.35-0.45 g/cm3

3.Zirconia Foam Ceramic Filter:

Product Performance:

1.Adjust the metal flow rate through rectification to reduce secondary inclusion and pores.
2.Reduce casting inclusion and reduce casting waste and welding repair rate.
3.Improve the surface quality and mechanical properties of the castings.foam ceramic filter 3

Application of Zirconia Foam Ceramic Filter:

Filtration of stainless steel, carbon steel and large castings.

L * W * T / Diameter *thick (mm) Filter capacity (kg) The pouring flow (kg/s) direct channel is 300mm high
High degree of deoxygenation Low degree of deoxygenation Carbon-based steel castings Stainless steel casting pieces
50Dx20 30 90 2.0 3.0
70Dx25 60 175 3.8 5.7
90Dx25 95 285 6.4 9.5
125Dx30 185 550 12.2 18.4
150Dx30 265 795 17.7 26.5
50x50x20 35 110 2.5 3.7
50x75x25 55 170 3.7 5.6
75x75x25 85 255 5.6 8.4
100x100x25 150 450 10.0 15.0
125x125x30 235 700 15.6 23.4
150x150x30 340 1010 22.5 33.7
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Apr 24, 2022
Zirconium Silicate

Zirconium silicate has a high refractive index of 1.93-2.01 and stable chemical performance. It is a high quality and low price opacifier for opacification. It is widely used in the production of various building ceramics, sanitary ceramics, daily ceramics and first-class handicraft ceramics. Zirconium silicate has been widely used in ceramic production because of its good chemical stability, so it is not affected by the burning atmosphere of ceramic, and can improve the binding performance of ceramic glaze significantly and improve the hardness of ceramic glaze. Zirconium silicate has been further applied in the production of color picture tube, emulsified glass and enamel glaze in the glass industry.zirconium silicate 1 zirconium silicate 2 zirconium silicate 3

Physical properties:

Specific Gravity 4.69
Melting Point 2500°C
Refractive Index 1.97
Mohs Hardness 7.5
Thermal Expansion Coefficient 4.2*10-6
Apprearance White or off white powder

Chemical properties:

Item RS65 RS64.5 RS63.5
ZrO2+HfO2 65.0 min 64.5 min 63.5 min
Fe2O3 0. 06 max 0. 08 max 0. 12 max
Ti02 0.10 max 0.12 max 0.18 max

Product standard:

Type Average mesh Application
RS-1.0 D50≤1.0um High-grade sanitary porcelain

High-grade daily-use porcelain

High-grade crystal brick
RS-1.2 D50≤1.2um
RS-15 D50≤1.5um Middle and low class sanitation porcelain,external and internal brick, archaized brick, engobe, body, etc.
RS-2.0 D50≤2.0um

Application:

1）Building ceramics, sanitary ceramics, daily-use ceramics, special ceramics, etc.（High refractive index 1.93-2.01，Chemical stability，It is an excellent and inexpensive opacifying agent,It is an excellent and inexpensive opacifying agent,In the processing and production of ceramic glaze, the scope of use is wide and the amount of use is large.）
2）Refractory materials and products, glass kiln zirconium ramming material, castable, spray coating, etc. (zirconium silicate melting point is very high:2500℃)
3）TV industry color kinescope, glass industry emulsified glass, enamel glaze production
4）Plastics industry: used as fillers requiring stability, heat resistance and chemical erosion resistance

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Apr 24, 2022
Honeycomb Ceramic Regenerator (For Regenerative Heating Furnace)

The technology is to make two regenerative alternating heat absorption exotherms through the reversing device, to recover the heat of the flue gas to the maximum limit, and then to heat the combustion air and gas in the furnace to above 1000 C, it can achieve stable ignition and efficient combustion even the low calorific value of the inferior combustion, saving fuel up to 40-70 °C. The output will be increased by more than 15 °C, the oxidation loss of the steel embryo will be reduced by more than 40%, the NO2 emission will be less than 100 pm, and the exhaust gas temperature will be lower than 150″C, which greatly reduces the greenhouse effect of the earth’ s atmosphere. If most of industrial furnaces in the country adopt HTAC technology, its economic and social benefits are immeasurable, which will greatly alleviate the shortage of energy and improve the living environment of human beings. Since its launch in the market, it has achieved good results and is favored by the steel smelting industry.

Main Size of Honeycomb Ceramic Regenerator:

L*W*G(mm) Number of cell Cell Width(mm) Thickness of Inner Wall(mm) Thickness of Out Wall(mm) Surface Area(m2/m3) Opening Ratio % End Face Shape
200x100x100 20×9 Round∮8.5 2.3 2.5 280 51 Flat、Bevel、Single Groove、Double Groove
150x 100×100 36×24 Square3x3 1.0 1.2 731 52
150x 100×100 35×20 Hexagonal∮4 1.0 1.2 687 65
150x 100×100 10×6 Hexagonal∮12 4.0 4.0 210 50
150x 150×100 35×20 Hexagonal∮3.5 0.8 1.5 686 63
150x 100×100 35×19 Round∮4 1.0 1.3 568 53
150x 100×100 15×9 Round∮8.5 2.3 2.5 280 51
150x 100×100 42×28 Square2.6×2.6 1.0 1.1 815 53
150x 100×100 7×6 Hexagonal∮12 4.0 4.0 224 52
100x 100×100 31×31 Square2.65×2.65 0.7 1.0 1065 67
100x 100×100 24×24 Square3x3 1.0 1.2 731 52
100x 100×100 23×20 Hexagonal∮4 1.0 1.2 608 64
100x 100×100 10×9 Round∮8.5 2.3 2.5 280 51

Physical Properties:

Item Corundum-mullite Mullite Cordierite-mullite Cordierite Chrome Corundum-mullite Zirconium Corundum-mullite
Bulk density (g/cm3) ≥0.8 0.6~1.1 0.6~0.9 0.5~0.8 ≥0. 8 ≥0. 8
Thermal Expansion Coefficient

(X10-60°C-1) (RT-800°C)

 ≤6 ≤5.5 ≤3 ≤2.5 ≤6.5 ≤6
Specific heat capacity

(J.(Kg.k)-1 )

 ≥800 ≥800 ≥750 ≥750 ≥800 ≥800
Thermal Shock (°C) ≥300 ≥300 ≥400 ≥500 ≥300 ≥350
Softening

temperature under load

(°C) (0.1MPa )

 ≥1500 ≥1450 ≥1350 ≥1250 ≥1500 ≥1500
Compressive Strength

(MPa) (C axis)

 ≥20 ≥20 ≥20 ≥20 ≥20 ≥20
Compressive Strength(Mpa) (A、 B axis) ≥4 ≥4 ≥3 ≥3 ≥4 ≥4

Chemical Composition:

Item Corundum-mullite Mullite Cordierite-mullite Cordierite Chrome Corundum-mullite Zirconium Corundum-mullite
SiO2 20~30 25~35 40~50 28~38 20~25 28~38
Al2O3 65~75 55~65 40~50 45~55 65~75 45~55
MgO ≤0.5 ≤1 5~9 11~14 ≤0.5 11~14
Fe203+TiO2 1~4 1~4 1~3 1~3 1~3 1~3
Others ≤5 ≤5 ≤5 ≤5 ≤8 ≤5
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Apr 24, 2022
RTO/RCO Honeycomb Ceramics (For VOCS Waste Gas Treatment Incinerators)

RTO refers to the regenerative thermal oxidation technology, and the English name is “Regenerative Thermal Oxidizer”. RTO regenerative thermal oxidation recovers heat by adopting a new unsteady heat transfer method. The principle is to heat the organic waste gas above 760℃to oxidize and decompose VOC in the exhaust gas into CO2 and H2O. The high-temperature gas generated by the oxidation flows through the special ceramic regenerator, and the ceramic body is heated and “heat-storing”, and the heat storage is used for preheating the organic exhaust gas that is subsequently introduced, thereby saving the fuel consumption of the exhaust gas heating. RTO technology is suitable for the treatment of low and medium concentration ( 100-3500mg/m2 ) waste gas with a decomposition efficiency of 95%-99%.
RCO refers to the regenerative catalytic combustion method, and the English is “Regenerative Catalytic Oxidation Oxidition”. The principle of RCO regenerative catalytic combustion is as follows: the first step is the adsorption of VOC molecules by the catalyst, and the concentration of the reactants is increased. The second step is to reduce the activation energy of the reaction and increase the reaction rate. By means of the catalyst, the organic waste gas can be anaerobicly burned at a lower light-off temperature, and decomposed into CO2 and H2O to release a large amount of heat. Compared with direct combustion, it has the characteristics of low light-off temperature and low energy consumption. In the case where the light-off temperature is reached, no external heating is required, and the reaction temperature is 250-400℃.rto honeycomb ceramics 2 rto honeycomb ceramics 1

Main Size:

L*W*G(mm)  

 

150x 150 x 300(150)

 

 
Number of Cell 25×25=625 40×40= 1600 43×43=1849 50×50=2500 60×60=3600
Width of Cell(mm) 4.95 3.02 2.81 2.38 1.98
Thickness of inner wall(mm) 1.0 0.7 0.65 0.6 0.5
Surface Area(m2/m3) 577 886 950 1084 1294
Opening Ratio(%) 68 65 65 63 63

Physical Properties:

Item Aluminum Porceian-cordierite Dense aluminum porcelain Cordierite Mullite-Cordierite Mullite Enamel
Density(g/cm3) 2.0~2.3 2.4~2.6 1.6~1.9 1.7~2.0 2.0~2.4 1.7~2.0
Bulk density (g/cm3) 0.65~0.8 0.65~0.8 0.6~0.7 0.65~0.75 0.65~0.8 0.65~0.75
Thermal Expansion Coefficient

(X10-6°C-1) (RT-800°C)

 ≤6 ≤6 ≤3 ≤3.5 ≤5.5 ≤6.5
Specific heat capacity

(J/Kg.k)

 950~1150 1000~1200 900~1100 900~1100 1000~1150 900~1100
Thermal Conductivity (w/m.k)(20-1000°C) 1.5~2.0 1.5~2.0 1.2~1.8 1.4~1.9 1.5~2.0 1.4~1.9
Thermal shock resistance Max Temperature(℃） ≥400 ≥300 ≥450 ≥350 ≥350 ≥300
Advised Max Temperature(℃） 1250 1350 1150 1250 1450 1200
Water Absorption Rate(%) ≤20 ≤5 ≤22 ≤20 ≤20 ≤10

Chemical composition:

Item Aluminum Porceian-cordierite Dense aluminum porcelain Cordierite Mullite-Cordierite Mullite Enamel
SiO2 25~35 25~35 45~55 40~50 25~35 68~72
Al2O3 55~65 55~65 28~38 55~65 55~65 22~26
MgO 2~4 2~4 11~14 5~9 ≤2 ≤0.5
Fe203+TiO2 1~4 1~4 1~3 1~3 1~4 1~3
Others ≤5 ≤5 ≤5 ≤5 ≤5 ≤5
L*W*G(mm) 150x 150 x 300(150)
Number of Cell 25×25=625 40×40= 1600 43×43=1849 50×50=2500 60×60=3600
Width of Cell(mm) 4.95 3.02 2.81 2.38 1.98
Thickness of inner wall(mm) 1 0.7 0.65 0.6 0.5
Surface Area(m2/m3) 577 886 950 1084 1294
Opening Ratio(%) 68 65 65 63 63
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