Inquiry
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High temperature firing zone silicon carbide sic roller / pipe for large boiler
is the mainly damageable part that need to be replacement frequently for roller kiln,its quality directly affects the normal operation of the kiln and the yield and quality of the ceramic products.
With the rapid development of the international construction industry,the demand of architectural ceramics,sanitary wares and domestic ceramics are increasing,thus the roller kiln with fast burning,energy saving and high automation degree are widely used in ceramic industry,especially produce the ceramic sisic ceramic rollers.
With the increase of application range and quantity of roller kiln,the requirements of some parts in roller kiln are also improved.Sisic ceramic rollers as the key part of roller kiln,its function is supporting and conveying calcined ceramic products under high temperature sintering process.The technical parameters of sisic ceramic rollers directly affected the application performance,quality and yield of calcined ceramic products.
Performance requirements of ceramic sisic ceramic rollers in roller kiln:
Because the sintering temperature is above 1250℃ in roller kiln,so it needs kiln furnitures to support and transport the ceramic products under high temperature,silicon carbide ceramic sisic ceramic rollers is the kiln furniture that support and transport the ceramic products under high temperature,help to complete the entire firing process.So sisic ceramic rollers is the important part for roller kiln,its quality directly affects the normal operation of the kiln and the yield and quality of the ceramic products.
The length of sisic ceramic rollers determines the effective kiln width,roller roundness and straightness will affect the quality of the product sintering and operating rules,thermal shock resistance will affect the service life of silicon carbide roller rod and the factory’s production costs.The high temperature strength of the sisic ceramic rollers is the basis for bearing product weight,while the refractoriness and high temperature load softening point of silicon carbide roller determine the max operation temperature of the roller kiln.
| Item | Unit | Data |
| Max temperature of application | ℃ | 1380 |
| Density | g/cm3 | ≥3.02 |
| Open porosity | % | <0.1 |
| Bending strength | Mpa | 250(20℃) |
| Mpa | 280(1200℃) | |
| Modulus of elasticity | Gpa | 330(20℃) |
| Gpa | 300(1200℃) | |
| Thermal conductivity | W/m.k | 45(1200℃) |
| Coefficient of thermal expansion | K-1×10-6 | 4.5 |
| Rigidity | 13 | |
| Acid alkaline-proof | Excellent |
→Superior high temperature resistance,wear resistance and oxidation resistance.
→Excellent straightness,less than 1‰.
→High uniformly distributed loading capacity,more than 4997 kg.m/L.
→OEM accepted.
→Easy to install.
→Various shape accepted,Germany imported technology and materials.
→Longer service life ( about 5 times more than that of alumina ceramic and 6 times more than that of polyurethane).
| Size of Section(mm) | Wall Thickness(mm) | Uniformly Distributed Loading(kg.m/L) | |
| B Side | H Side | ||
| 40 | 28 | 6 | 194 |
| 45 | 33 | 6 | 260 |
| 45 | 31 | 7 | 282 |
| 50 | 38 | 6 | 334 |
| 50 | 36 | 7 | 366 |
| 55 | 43 | 6 | 418 |
| 55 | 41 | 7 | 460 |
| 60 | 48 | 6 | 512 |
| 60 | 46 | 7 | 566 |
| 70 | 56 | 7 | 810 |
Application of High temperature no deformation silicon carbide ceramic rollers tubes for roller hearth kiln:
Ceramic rollers are used for high temperature sintering zone of roller hearth kilns,include domestic ceramics,sanitary pottery,architectural porcelain,glass and magnetic material,etc.
